/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  --bp-xs: 480px;
  --bp-sm: 768px;
  --bp-md: 1024px;
  --bp-lg: 1280px;
  --bp-xl: 1536px;
  --header-height: 70px;
  --gutter-xs: 6px;
  --gutter-sm: 8px;
  --gutter-md: 12px;
  --gutter-lg: 16px;
  --gutter-xl: 20px;
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 64px;

  /* 字体大小系统 (Global Font Size System) */
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1rem;      /* 16px (alias for base) */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.75rem;  /* 28px */
  --font-size-4xl: 3rem;     /* 48px */
  --font-size-title: 2rem;   /* 32px */
  --font-size-display: 2.5rem; /* 40px */
  
  /* 字体家族 */
  --font-family-mono: 'Courier New', monospace;
}

/* 应用容器 */
.app-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  overflow: visible;
}

/* 头部样式 */
.app-header {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  box-sizing: border-box;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  overflow: visible;
}

.app-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary, #ffffff);
  margin: 0;
  padding: 0;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  letter-spacing: 0.8px;
  transition: all 0.3s ease;
  background: linear-gradient(135deg, #ffffff 0%, #e8f4f8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.app-header .mobile-nav-overlay {
  position: fixed;
  top: var(--header-height) !important;
  left: 0;
  right: 0;
  bottom: 0 !important;
  z-index: 2000 !important;
  opacity: 0;
  visibility: hidden;
}
.app-header .mobile-nav-overlay.active { opacity: 1; visibility: visible; }

.app-header .mobile-nav-drawer {
  position: fixed;
  top: var(--header-height) !important;
  left: 0 !important;
  right: auto !important;
  bottom: 0 !important;
  width: min(86vw, 360px);
  z-index: 2001 !important;
}

.app-nav {
  display: flex;
  gap: 1rem;
  margin-left: 5rem;
  flex-wrap: nowrap;
  overflow-x: visible;
  overflow-y: visible;
  position: relative;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.app-nav::-webkit-scrollbar { display: none; width: 0; height: 0; }

.nav-item {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  font-weight: 500;
  letter-spacing: 0.3px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.nav-item:hover {
  background-color: rgba(255,255,255,0.15);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.nav-item.active {
  background: linear-gradient(135deg, #61dafb 0%, #4fa8d3 100%);
  color: #282c34;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(97, 218, 251, 0.4);
  border: 1px solid rgba(97, 218, 251, 0.3);
}

/* 主内容区域 */
.app-main {
  flex: 1;
  width: 100%;
  overflow-y: auto; /* 恢复为auto，内容超出时显示滚动条 */
  box-sizing: border-box;
  padding-top: var(--header-height);
  padding-bottom: 20px; /* 添加底部内边距确保内容不紧贴底部 */
  min-height: calc(100vh - var(--header-height));
  height: auto; /* 改为自适应高度，避免与内部容器冲突 */
}

/* 练习页面特殊布局 */
.practice-page-layout .app-main.practice-main {
  padding: 0;
  display: grid;
  place-items: center;
}

/* ProfilePage页面特殊布局 */
.profile-page-layout .app-main.profile-main {
  padding-top: var(--header-height) !important;
  padding-bottom: 20px !important; /* 添加底部内边距确保内容不紧贴底部 */
  margin: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  min-height: calc(100vh - var(--header-height)) !important;
  height: auto !important; /* 高度自适应内容 */
  width: 100% !important;
  max-width: 100vw !important;
  overflow-x: hidden !important;
  overflow-y: auto !important; /* 确保内容可以滚动 */
  box-sizing: border-box !important;
  position: relative !important;
}



/* 课程列表页面的特殊处理 */
.app-main:has(.course-list-page) {
  padding-top: var(--header-height) !important;
  padding-bottom: 0 !important;
  margin: 0;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  min-height: calc(100vh - var(--header-height));
  height: auto;
  box-sizing: border-box;
}
/* 练习页面主内容区域样式 */
  .practice-page-layout .practice-main {
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    min-height: calc(100vh - 70px) !important;
    height: calc(100vh - 70px) !important;
    width: 100% !important;
    max-width: 100% !important; /* 改为100%而不是100vw，避免水平滚动条 */
    overflow-x: hidden !important;
    overflow-y: visible !important; /* 改为visible，避免双重滚动条 */
    box-sizing: border-box !important;
    position: relative !important;
  }

/* 底部样式 */
.app-footer {
  background-color: #282c34;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: auto;
}

/* 卡片样式 */
.card {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 2rem;
  margin-bottom: 1.5rem;
  
  /* 科技感玻璃效果 - 为练习引导卡片设计 */
  background: linear-gradient(135deg, 
    rgba(var(--bg-primary-rgb, 255, 255, 255), 0.95) 0%, 
    rgba(var(--bg-secondary-rgb, 248, 250, 252), 0.9) 50%, 
    rgba(var(--bg-tertiary-rgb, 241, 245, 249), 0.92) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.15);
  box-shadow: 
    0 8px 32px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  
  /* 动态光效动画 */
  animation: cardGlow 4s ease-in-out infinite alternate;
  position: relative;
}

/* 科技感光效动画 */
@keyframes cardGlow {
  0% {
    box-shadow: 
      0 8px 32px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border-color: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.15);
  }
  50% {
    box-shadow: 
      0 12px 40px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.15),
      0 0 20px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.08),
      inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.25);
  }
  100% {
    box-shadow: 
      0 16px 48px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2),
      0 0 30px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.12),
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.35);
  }
}

/* 玻璃反光效果 - 顶部高光 */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(255, 255, 255, 0.6) 50%, 
    transparent 100%);
  z-index: -1; /* 改为负值，确保不会覆盖内容 */
  /* 移除左右晃动动画 */
  /* animation: cardShimmer 3s ease-in-out infinite; */
  pointer-events: none; /* 确保不会拦截点击事件 */
}

/* 反光动画 - 已禁用 */
/* @keyframes cardShimmer {
  0%, 100% {
    opacity: 0.4;
    transform: translateX(-100%);
  }
  50% {
    opacity: 0.9;
    transform: translateX(100%);
  }
} */

/* 按钮样式 */
.btn {
  padding: 12px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--text-inverse) !important;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
/* Ensure icons inside primary buttons are visible */
.btn-primary svg {
  color: var(--text-inverse);
  stroke: var(--text-inverse);
}

.btn-secondary {
  background-color: #f0f0f0;
  color: #333;
}

.btn-secondary:hover {
  background-color: #e0e0e0;
}

/* 任务详情模态框样式 */
.task-details-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 20px;
}

.task-details-modal {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  width: 80%;
  max-width: 1200px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 任务详情模态框样式 - 修复遮挡并添加微妙效果 */
.task-details-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(4px);
}

.task-details-modal {
  background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
  border-radius: 16px;
  box-shadow: 
    0 25px 50px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset,
    0 -20px 40px rgba(255, 255, 255, 0.1) inset;
  width: 90%;
  max-width: 900px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.3s ease-out;
  position: relative;
  overflow: hidden;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.task-details-modal .modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffffff;
  flex-shrink: 0;
  margin-top: 0; /* 确保header位于模态框最顶部 */
}

.task-details-modal .modal-header h2 {
  margin: 0;
  font-size: 1.4rem;
  color: #1a1a1a;
  font-weight: 600;
  line-height: 1.4;
  max-width: 80%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-details-modal .close-btn {
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #666;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: all 0.2s ease;
  padding: 0;
  line-height: 1;
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.1),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.task-details-modal .close-btn:hover {
  background-color: #e8e8e8;
  color: #333;
  transform: scale(1.05);
}

/* 模态框内容区域 - 简化设计 */
.task-details-modal .modal-body {
  padding: 0;
  flex: 1 1 auto; /* 确保flex项目正确收缩 */
  display: flex;
  flex-direction: column;
  overflow: hidden; /* 让内部区域处理滚动 */
  min-height: 0; /* 关键：允许收缩 */
  max-height: calc(85vh - 120px); /* 减去header高度 */
}

/* 覆盖Modal.css中的滚动条设置 */
.task-details-modal.modal-content {
  overflow-y: hidden !important;
  max-height: none !important;
  height: 85vh;
  display: flex;
  flex-direction: column;
  max-height: 85vh; /* 确保高度限制 */
}

/* 关联任务区域 - 简化 */
.task-details-modal .related-tasks-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0; /* 防止flex项目溢出 */
}

/* 表格容器 - 简化 */
.task-details-modal .related-tasks-table-container {
  flex: 1 1 auto; /* 确保可以收缩 */
  overflow-y: auto; /* 确保可以垂直滚动 */
  overflow-x: auto; /* 水平滚动 */
  border: none;
  margin: 0;
  padding: 0;
  min-height: 0; /* 关键：允许收缩 */
  max-height: calc(85vh - 200px); /* 更保守的高度计算 */
}

.task-details-modal .related-tasks-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  background: white;
}

/* 表格头部 - 修复遮挡问题 */
.task-details-modal .related-tasks-table th {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: #495057;
  border-bottom: 1px solid #e9ecef;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1; /* 降低z-index，避免层级冲突 */
  font-size: 0.9rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 添加微妙阴影增强层次感 */
}

.task-details-modal .related-tasks-table td {
  padding: 1rem;
  border-bottom: 1px solid #f0f0f0;
  vertical-align: top;
  color: #333;
  line-height: 1.5;
  background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
}

.task-details-modal .related-tasks-table tr:hover {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}

.task-details-modal .related-tasks-table tr:last-child td {
  border-bottom: none;
}

.task-details-modal .related-tasks-table td:first-child {
  font-weight: 500;
  color: #666;
  text-align: center;
  width: 60px;
}

/* 内容区域 - 简化 */
.task-details-modal .task-content-cell {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.task-details-modal .task-content-cell p {
  margin: 0;
  color: #333;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.5;
}

.task-details-modal .task-content-cell p:empty::after {
  content: '-';
  color: #999;
}



/* 空状态 - 简洁 */
.task-details-modal .no-related-tasks {
  text-align: center;
  color: #999;
  padding: 3rem 2rem;
  font-size: 1rem;
}

/* 模态框底部操作区域 - 简化 */
.task-details-modal .modal-actions {
  padding: 1rem 2rem;
  border-top: 1px solid #f0f0f0;
  display: flex;
  justify-content: flex-end;
  background: #ffffff;
  flex-shrink: 0;
}

/* 响应式设计 - 简化 */
@media (max-width: 768px) {
  .task-details-modal {
    width: 95%;
    max-height: 90vh;
    margin: 10px;
  }
  
  .task-details-modal .modal-header {
    padding: 1rem 1.5rem;
  }
  
  .task-details-modal .modal-header h2 {
    font-size: 1.2rem;
  }
  
  .task-details-modal .related-tasks-table th,
  .task-details-modal .related-tasks-table td {
    padding: 0.75rem 0.5rem;
    font-size: 0.9rem;
  }
}

/* 设置各列宽度 */

.task-details-modal .related-tasks-table th:nth-child(1),
.task-details-modal .related-tasks-table td:nth-child(1) {
  width: 20px !important;
  min-width: 20px !important;
  max-width: 20px !important;
  text-align: center !important;
  padding: 2px !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  font-size: 12px !important;
  white-space: nowrap !important;
  box-sizing: border-box !important;
}

.task-details-modal .related-tasks-table th:nth-child(2),
.task-details-modal .related-tasks-table td:nth-child(2) {
  width: 30%;
  min-width: 300px;
}

.task-details-modal .related-tasks-table th:nth-child(3),
.task-details-modal .related-tasks-table td:nth-child(3) {
  width: 15%;
  min-width: 150px;
}

.task-details-modal .related-tasks-table th:nth-child(4),
.task-details-modal .related-tasks-table td:nth-child(4) {
  width: 30%;
  min-width: 300px;
}

/* 允许内容列和翻译列换行 */
.task-details-modal .related-tasks-table td:nth-child(2),
.task-details-modal .related-tasks-table td:nth-child(4) {
  white-space: normal;
  word-wrap: break-word;
  word-break: break-word;
}

.task-text {
  font-size: 16px;
  line-height: 1.4;
  word-break: break-word;
  white-space: normal;
}

/* 统计信息样式 */
.stats-container {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.stat-item {
  width: auto; /* 移除固定宽度 */
  padding: 1rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  min-width: 200px; /* 设置最小宽度确保内容不被挤压 */
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center; /* 水平居中 */
  gap: 0.5rem;
  max-width: none; /* 移除最大宽度限制 */
  overflow: visible; /* 允许内容可见 */
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  color: #61dafb;
}

.stat-label {
  font-size: 0.9rem;
  color: #666;
  margin-top: 0;
}

/* 输入区域样式 */
.typing-area {
  margin-bottom: 2rem;
}

.input-field {
  width: 100%;
  padding: 1rem;
  font-size: 1.2rem;
  border: 1px solid #ccc;
  background: white;
  outline: none;
  margin: 10px 0;
  border-radius: 4px;
  position: relative;
  opacity: 1;
  height: auto;
  overflow: visible;
}

.input-field:focus {
  border: 1px solid #61dafb;
  background: white;
  opacity: 1;
  height: auto;
  padding: 1rem;
  margin: 10px 0;
  overflow: visible;
  position: relative;
}

.input-field.error {
  border: 1px solid #ff6b6b;
  background: white;
  opacity: 1;
  height: auto;
  padding: 1rem;
  margin: 10px 0;
  overflow: visible;
  position: relative;
}

/* 练习页面底部统计显示 */
.practice-stats-footer {
  position: fixed;
  bottom: 60px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 10px;
  background-color: white;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  border-top: 1px solid #ddd;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .app-header {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    height: var(--header-height);
  }
  .app-header h1 {
    font-size: 1.2rem;
    white-space: nowrap;
  }
  .app-nav {
    flex: 1;
    width: auto;
    margin-left: 0.5rem;
    padding: 0 0.25rem;
    gap: 0.5rem;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .app-nav::-webkit-scrollbar { display: none; width: 0; height: 0; }
  .nav-item {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
    white-space: nowrap;
  }
  
  .stats-container {
    gap: 1rem;
    width: 100%;
    overflow-x: auto;
  }
  
  .app-main {
    padding: 1rem;
    padding-top: var(--header-height);
    padding-bottom: 20px;
    min-height: calc(100vh - var(--header-height));
    height: auto;
  }
  
  /* 移动端适配 */
  .practice-stats-footer {
    bottom: 70px;
    padding: 8px;
  }
}
.mobile-top-actions {
  position: absolute;
  top: 50%;
  left: 12px;
  right: 12px;
  transform: translateY(-50%);
  display: none;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-toggle,
.mobile-filter-toggle {
  display: none;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
}

.mobile-nav-toggle:hover,
.mobile-filter-toggle:hover {
  background: var(--bg-secondary);
}
/* 移动端：折叠导航并显示顶部按钮 */
@media (max-width: 1024px) {
  .app-header {
    padding: 0 12px;
  }
  .app-nav {
    display: none;
  }
  .mobile-top-actions {
    display: inline-flex;
  }
  .mobile-nav-toggle,
  .mobile-filter-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }
  .app-header h1 {
    flex: 1;
    text-align: center;
    font-size: 1.2rem;
  }

  .mobile-nav-overlay {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }
  .mobile-nav-overlay.active { opacity: 1; visibility: visible; }

  .mobile-nav-drawer {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: auto;
    bottom: 0;
    width: min(86vw, 360px);
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    margin: 0;
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }
  .mobile-nav-drawer.active { opacity: 1; visibility: visible; pointer-events: auto; }
  .mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
  }
  .mobile-nav-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-primary);
  }
  .mobile-nav-content {
    display: flex;
    flex-direction: column;
    padding: 12px;
    gap: 8px;
    overflow-y: auto;
  }
}
/* Sci-Fi High-Tech Theme - "Victory & Achievement" */
:root {
  /* Core Backgrounds - Premium Dark */
  --sci-fi-bg-primary: #0f172a;
  /* Slate 900 */
  --sci-fi-bg-secondary: #1e293b;
  /* Slate 800 */
  --sci-fi-bg-card: #1e293b;
  /* Slate 800 */

  /* RGB values for opacity manipulation */
  --sci-fi-accent-rgb: 56, 189, 248;
  /* Sky 400 */
  --sci-fi-bg-secondary-rgb: 30, 41, 59;

  /* Text Colors */
  --sci-fi-text-primary: #f1f5f9;
  /* Slate 100 */
  --sci-fi-text-secondary: #94a3b8;
  /* Slate 400 */

  /* Accents - Sophisticated Blue & Gold */
  --sci-fi-accent-primary: #38bdf8;
  /* Sky 400 */
  --sci-fi-accent-secondary: #facc15;
  /* Yellow 400 */
  --sci-fi-accent-tertiary: #818cf8;
  /* Indigo 400 */

  /* Borders & Glows - Subtle */
  --sci-fi-border-color: rgba(255, 255, 255, 0.1);
  --sci-fi-shadow-glow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  /* Elegant shadow, no neon glow */

  /* Special */
  --sci-fi-font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

/* Light Theme Overrides - Clean & Minimal */
body.light,
body.aurora-light,
body.nebula-light {
  --sci-fi-bg-primary: #f8fafc;
  /* Slate 50 */
  --sci-fi-bg-secondary: #ffffff;
  --sci-fi-bg-card: #ffffff;

  --sci-fi-accent-rgb: 14, 165, 233;
  /* Sky 500 */
  --sci-fi-bg-secondary-rgb: 255, 255, 255;

  --sci-fi-text-primary: #0f172a;
  /* Slate 900 */
  --sci-fi-text-secondary: #64748b;
  /* Slate 500 */

  --sci-fi-accent-primary: #0ea5e9;
  /* Sky 500 */
  --sci-fi-accent-secondary: #eab308;
  /* Yellow 500 */
  --sci-fi-accent-tertiary: #6366f1;
  /* Indigo 500 */

  --sci-fi-border-color: rgba(0, 0, 0, 0.06);
  --sci-fi-shadow-glow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  /* Soft drop shadow */
}

/* Map to Generic Names for usage in components */
:root {
  --bg-primary-scifi: var(--sci-fi-bg-primary);
  --bg-card-scifi: var(--sci-fi-bg-card);
  --text-primary-scifi: var(--sci-fi-text-primary);
  --accent-primary-scifi: var(--sci-fi-accent-primary);
}

/* 
   NOTE: We do NOT override global --bg-primary here anymore to avoid breaking global themes.
   Components should use var(--bg-primary-scifi) if they want the scifi look, 
   or just inherit global --bg-primary.
   
   However, existing code uses standard variables. 
   If we want PracticePage to BE Sci-Fi, we should scope it.
*/
/* .practice-page-container,
.uac-card--page,
.uac-container { */
/* Map Local Context to Sci-Fi Variables - DISABLED to allow global theme adaptation */
/* --bg-card: var(--sci-fi-bg-card);
  --text-primary: var(--sci-fi-text-primary);
  --accent-primary: var(--sci-fi-accent-primary);
  --border-color: var(--sci-fi-border-color);
  --shadow-glow: var(--sci-fi-shadow-glow); */

/* RGB Helpers */
/* --bg-secondary-rgb: var(--sci-fi-bg-secondary-rgb);
  --sci-fi-accent-rgb: var(--sci-fi-accent-rgb); */
/* } */

/* Global modifications when this theme is active */
.ta-word-unit.ta-focused .ta-word-underline {
  box-shadow: 0 0 15px var(--accent-primary);
  filter: drop-shadow(0 0 5px var(--accent-primary));
}

.ta-character.ta-correct {
  color: var(--success-color);
  text-shadow: 0 0 5px rgba(0, 255, 163, 0.5);
}

.ta-character.ta-incorrect {
  color: var(--error-color);
  text-shadow: 0 0 5px rgba(255, 0, 85, 0.5);
}

/* Victory Animation for Answer Card */
@keyframes scifi-victory-pop {
  0% {
    opacity: 0;
    transform: scale(0.8);
    filter: blur(10px);
  }

  50% {
    opacity: 1;
    transform: scale(1.05);
    filter: blur(0);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* HUD Scanning Line Animation */
@keyframes scifi-scan-line {
  0% {
    background-position: 0% 0%;
  }

  100% {
    background-position: 0% 100%;
  }
}/* 全局样式重置和修复 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  /* 防止水平滚动 */
  overflow-y: hidden;
  /* 禁止页面级滚动，仅使用 .app-main 滚动 */
}

/* 修复根元素样式 */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
}

/* 确保应用容器占满整个视口 */
.app-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  overflow: visible;
  /* 防止裁剪下拉菜单 */
}

/* 修复主内容区域样式 */
.app-main {
  flex: 1;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  /* 移除所有margin，避免占用空间导致滚动条 */
  overflow-x: hidden;
  overflow-y: hidden;
  /* 页面不滚动，使用局部滚动 */
  padding-top: 70px;
  /* 添加顶部内边距以避开固定头部 */
  padding-bottom: 0;
}

.sp-toolbar {
  display: flex;
  gap: 16px;
  align-items: stretch;
  justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.sp-toolbar .left {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.sp-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
}

.sp-title {
  font-weight: 600;
  color: var(--text-primary);
}

.sp-select,
.sp-input {
  height: 30px;
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-primary);
}

.sp-file input[type="file"] {
  height: 30px;
}

.sp-left {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 180px);
}

.sp-elements-scroll {
  flex: 1;
  overflow-y: auto;
  padding-right: 4px;
  padding-bottom: 80px;
}

.sp-footer-container {
  width: 100%;
  margin-top: 20px;
  padding: 10px 0;
}

.sp-left-footer {
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  padding: 10px 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  max-width: calc(100% - 32px);
  flex-wrap: wrap;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-box {
  width: min(520px, 90vw);
  background: #ffffff;
  border: 1px solid rgba(229, 231, 235, 1);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  padding: 16px;
}

.modal-title {
  font-weight: 600;
  color: #111827;
  margin-bottom: 8px;
}

.modal-content {
  color: #374151;
  margin-bottom: 12px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}/* 登录页面主题变量定义 */

/* 白天主题登录页面变量 */
body.light {
  /* 登录页面背景渐变 */
  --login-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* 登录页面头部样式 */
  --login-header-bg: rgba(255, 255, 255, 0.1);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.2);
  --login-header-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --login-header-inset-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  
  /* 登录页面标题样式 */
  --login-title-color: #ffffff;
  --login-title-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  --login-title-gradient: linear-gradient(135deg, #ffffff 0%, #e0e6f0 100%);
  
  /* 登录表单样式 */
  --login-form-bg: rgba(255, 255, 255, 0.95);
  --login-form-border: 1px solid rgba(255, 255, 255, 0.3);
  --login-form-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --login-form-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  
  /* 登录表单标题样式 */
  --login-form-title-color: #2d3748;
  --login-form-title-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  
  /* 表单标签样式 */
  --login-form-label-color: #4a5568;
  
  /* 输入框样式 */
  --login-form-input-bg: #ffffff;
  --login-form-input-border: 1px solid #e2e8f0;
  --login-form-input-color: #2d3748;
  --login-form-input-placeholder: #a0aec0;
  --login-form-input-focus-border: 1px solid #667eea;
  --login-form-input-focus-bg: #ffffff;
  --login-form-input-focus-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  
  /* 登录按钮样式 */
  --login-button-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --login-button-color: #ffffff;
  --login-button-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
  --login-button-hover-bg: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
  --login-button-hover-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
  --login-button-active-bg: linear-gradient(135deg, #4d5bc6 0%, #5d367e 100%);
  --login-button-active-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
  --login-button-disabled-bg: #a0aec0;
  --login-button-disabled-color: #718096;
  --login-button-disabled-shadow: none;
  
  /* 主题切换按钮样式 */
  --login-theme-toggle-bg: rgba(255, 255, 255, 0.2);
  --login-theme-toggle-border: 1px solid rgba(255, 255, 255, 0.3);
  --login-theme-toggle-color: #ffffff;
  --login-theme-toggle-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --login-theme-toggle-hover-bg: rgba(255, 255, 255, 0.3);
  --login-theme-toggle-hover-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  
  /* 演示账户样式 */
  --login-demo-border: 1px solid rgba(255, 255, 255, 0.2);
  --login-demo-text-color: rgba(255, 255, 255, 0.8);
  --login-demo-title-color: rgba(255, 255, 255, 0.9);
}

/* 夜间主题登录页面变量 */
body.dark {
  /* 登录页面背景渐变 */
  --login-bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  
  /* 登录页面头部样式 */
  --login-header-bg: rgba(30, 41, 59, 0.3);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.1);
  --login-header-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --login-header-inset-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  
  /* 登录页面标题样式 */
  --login-title-color: #e0e6f0;
  --login-title-shadow: 0 0 20px rgba(77, 171, 247, 0.5);
  --login-title-gradient: linear-gradient(135deg, #e0e6f0 0%, #a0a9b8 100%);
  
  /* 登录表单样式 */
  --login-form-bg: rgba(30, 41, 59, 0.9);
  --login-form-border: 1px solid rgba(255, 255, 255, 0.1);
  --login-form-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --login-form-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  
  /* 登录表单标题样式 */
  --login-form-title-color: #e0e6f0;
  --login-form-title-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  
  /* 表单标签样式 */
  --login-form-label-color: #a0a9b8;
  
  /* 输入框样式 */
  --login-form-input-bg: #1a2332;
  --login-form-input-border: 1px solid #2a3441;
  --login-form-input-color: #ffffff;
  --login-form-input-placeholder: #a0a9b8;
  --login-form-input-focus-border: 1px solid #4dabf7;
  --login-form-input-focus-bg: #1e2433;
  --login-form-input-focus-shadow: 0 0 0 3px rgba(77, 171, 247, 0.2);
  
  /* 登录按钮样式 */
  --login-button-bg: linear-gradient(135deg, #4dabf7 0%, #9775fa 100%);
  --login-button-color: #ffffff;
  --login-button-shadow: 0 4px 15px rgba(77, 171, 247, 0.4);
  --login-button-hover-bg: linear-gradient(135deg, #339af0 0%, #7950f2 100%);
  --login-button-hover-shadow: 0 6px 20px rgba(77, 171, 247, 0.6);
  --login-button-active-bg: linear-gradient(135deg, #1c7ed6 0%, #6741d9 100%);
  --login-button-active-shadow: 0 2px 10px rgba(77, 171, 247, 0.3);
  --login-button-disabled-bg: #4a5568;
  --login-button-disabled-color: #a0a9b8;
  --login-button-disabled-shadow: none;
  
  /* 主题切换按钮样式 */
  --login-theme-toggle-bg: rgba(30, 41, 59, 0.5);
  --login-theme-toggle-border: 1px solid rgba(255, 255, 255, 0.1);
  --login-theme-toggle-color: #a0a9b8;
  --login-theme-toggle-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --login-theme-toggle-hover-bg: rgba(30, 41, 59, 0.7);
  --login-theme-toggle-hover-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  
  /* 演示账户样式 */
  --login-demo-border: 1px solid rgba(255, 255, 255, 0.1);
  --login-demo-text-color: rgba(160, 169, 184, 0.8);
  --login-demo-title-color: rgba(224, 230, 240, 0.9);
}

/* 赛博朋克暗色主题登录页面变量 */
body.cyberpunk-dark {
  --login-bg-gradient: linear-gradient(135deg, #0b1020 0%, #121936 60%, #0b0f1a 100%);
  --login-form-bg: rgba(14, 18, 32, 0.92);
  --login-form-border: 1px solid rgba(255, 255, 255, 0.08);
  --login-form-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --login-form-title-color: #e6e8f3;
  --login-form-label-color: #b7bfd3;
  --login-form-input-bg: rgba(18, 22, 40, 0.95);
  --login-form-input-border: 1px solid rgba(231, 233, 242, 0.14);
  --login-form-input-color: #e6e8f3;
  --login-form-input-placeholder: rgba(230, 232, 243, 0.6);
  --login-form-input-focus-border: 1px solid #ff006e;
  --login-form-input-focus-bg: rgba(22, 26, 48, 0.98);
  --login-form-input-focus-shadow: 0 0 0 3px rgba(255, 0, 110, 0.18);
  --login-button-bg: linear-gradient(135deg, #ff006e 0%, #58a6ff 100%);
  --login-button-color: #ffffff;
  --login-button-shadow: 0 8px 26px rgba(255, 0, 110, 0.35);
}

/* 极光主题（浅/暗）登录页面变量 */
body.aurora-light {
  --login-bg-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
  --login-header-bg: rgba(255, 255, 255, 0.2);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.3);
  --login-title-color: #2d3748;
  --login-title-gradient: linear-gradient(135deg, #2d3748 0%, #5a67d8 100%);
}

body.aurora-dark {
  --login-bg-gradient: linear-gradient(135deg, #1a1f3b 0%, #0a0f24 100%);
  --login-header-bg: rgba(26, 31, 59, 0.35);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.12);
  --login-title-color: #e0e6f0;
  --login-title-gradient: linear-gradient(135deg, #e0e6f0 0%, #a0a9b8 100%);
}

/* 星云主题（浅/暗）登录页面变量 */
body.nebula-light {
  --login-bg-gradient: linear-gradient(135deg, #89f7fe 0%, #66a6ff 100%);
  --login-header-bg: rgba(255, 255, 255, 0.18);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.28);
  --login-title-color: #1f2937;
  --login-title-gradient: linear-gradient(135deg, #1f2937 0%, #3b82f6 100%);
}

body.nebula-dark {
  --login-bg-gradient: linear-gradient(135deg, #0b1220 0%, #0f172a 100%);
  --login-header-bg: rgba(15, 23, 42, 0.35);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.12);
  --login-title-color: #e5e7eb;
  --login-title-gradient: linear-gradient(135deg, #e5e7eb 0%, #93c5fd 100%);
}

/* 默认值定义（当主题未设置时） */
body {
  /* 登录页面背景渐变 */
  --login-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* 登录页面头部样式 */
  --login-header-bg: rgba(255, 255, 255, 0.1);
  --login-header-border: 1px solid rgba(255, 255, 255, 0.2);
  --login-header-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --login-header-inset-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  
  /* 登录页面标题样式 */
  --login-title-color: #ffffff;
  --login-title-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  --login-title-gradient: linear-gradient(135deg, #ffffff 0%, #e0e6f0 100%);
  
  /* 登录表单样式 */
  --login-form-bg: rgba(255, 255, 255, 0.95);
  --login-form-border: 1px solid rgba(255, 255, 255, 0.3);
  --login-form-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --login-form-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  
  /* 登录表单标题样式 */
  --login-form-title-color: #2d3748;
  --login-form-title-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  
  /* 表单标签样式 */
  --login-form-label-color: #4a5568;
  
  /* 输入框样式 */
  --login-form-input-bg: #ffffff;
  --login-form-input-border: 1px solid #e2e8f0;
  --login-form-input-color: #2d3748;
  --login-form-input-placeholder: #a0aec0;
  --login-form-input-focus-border: 1px solid #667eea;
  --login-form-input-focus-bg: #ffffff;
  --login-form-input-focus-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  
  /* 登录按钮样式 */
  --login-button-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --login-button-color: #ffffff;
  --login-button-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
  --login-button-hover-bg: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
  --login-button-hover-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
  --login-button-active-bg: linear-gradient(135deg, #4d5bc6 0%, #5d367e 100%);
  --login-button-active-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
  --login-button-disabled-bg: #a0aec0;
  --login-button-disabled-color: #718096;
  --login-button-disabled-shadow: none;
  
  /* 主题切换按钮样式 */
  --login-theme-toggle-bg: rgba(255, 255, 255, 0.2);
  --login-theme-toggle-border: 1px solid rgba(255, 255, 255, 0.3);
  --login-theme-toggle-color: #ffffff;
  --login-theme-toggle-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --login-theme-toggle-hover-bg: rgba(255, 255, 255, 0.3);
  --login-theme-toggle-hover-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  
  /* 演示账户样式 */
  --login-demo-border: 1px solid rgba(255, 255, 255, 0.2);
  --login-demo-text-color: rgba(255, 255, 255, 0.8);
  --login-demo-title-color: rgba(255, 255, 255, 0.9);
}/* 课程列表页面样式 - Updated: 2025-10-27 */
.course-list-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* 课程卡片网格布局 */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  width: 100%;
  margin: 0;
  padding: 0;
}

@media (max-width: 768px) {
  .course-grid {
    gap: 8px; /* 极限紧凑 */
  }
}

/* 课程卡片样式 - Updated: 2025-10-27 - 基于earthworm设计 */
.course-card {
  background: var(--gradient-card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-small);
  transition: all 0.3s ease;
  border: 1px solid var(--border-primary);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  position: relative;
  animation: none !important; /* 强制禁用任何动画 */
  transform: none !important; /* 强制禁用任何变换 */
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-primary);
}

/* 深色主题下的课程卡片样式 */
body.dark .course-card,
body.nebula-dark .course-card,
body.aurora-dark .course-card,
body.cyberpunk-dark .course-card {
  background: var(--gradient-card) !important;
  border: 1px solid var(--border-color);
}

/* 深色主题标题样式 */
body.cyberpunk-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

body.aurora-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

body.nebula-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* dark的hover效果 */
body.dark .course-card:hover {
  background: linear-gradient(145deg, #1a2332 0%, #0f1420 100%) !important;
}

/* 其他深色主题变体的hover效果 */
body.nebula-dark .course-card:hover,
body.aurora-dark .course-card:hover,
body.cyberpunk-dark .course-card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 课程图片区域 */
.course-image-container {
  position: relative;
  height: 160px;
  overflow: hidden;
}

.course-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.course-card:hover .course-image {
  transform: scale(1.05);
}

.course-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
}

/* 难度标签 */
.difficulty-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.difficulty-beginner {
  background-color: #4caf50;
  color: white;
}

.difficulty-intermediate {
  background-color: #ff9800;
  color: white;
}

.difficulty-advanced {
  background-color: #f44336;
  color: white;
}

/* 课程内容区域 */
.course-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-header {
  margin-bottom: 12px;
}

.course-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.lesson-count,
.course-duration {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-lesson::before {
  content: "📚";
}

.icon-time::before {
  content: "⏱️";
}

/* 课程描述 */
.course-description {
  color: var(--text-secondary);
  margin: 0 0 16px 0;
  line-height: 1.5;
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

/* 课程标签 */
.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.tag {
  padding: 4px 8px;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

.tag-more {
  padding: 4px 8px;
  background-color: var(--bg-tertiary);
  color: var(--text-tertiary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* 课程操作按钮 */
.course-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.view-course-btn,
.add-course-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.view-course-btn {
  background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
  color: white;
}

.view-course-btn:hover {
  background: linear-gradient(45deg, var(--accent-primary-dark), var(--accent-secondary-dark));
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.add-course-btn {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.add-course-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-secondary);
}

.add-course-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 模态框样式 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--bg-card);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  border-radius: 16px 16px 0 0;
  z-index: 10;
}

.modal-header h2 {
  font-size: 1.75rem;
  color: var(--text-primary);
  margin: 0;
  font-weight: 700;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.close-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
}

.modal-body .course-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.lessons-list h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent-primary);
  padding-bottom: 0.5rem;
}

/* 课时列表项样式 */
.lesson-item {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent-primary);
  transition: all 0.2s ease;
}

.lesson-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.lesson-info h4 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.lesson-info p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.lesson-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.free-badge {
  background-color: var(--success-color);
  color: var(--text-inverse);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

.lesson-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.practice-btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.practice-btn.word-practice {
  background-color: #e3f2fd;
  color: #1976d2;
}

.practice-btn.word-practice:hover {
  background-color: #1976d2;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(25, 118, 210, 0.3);
}

.practice-btn.phrase-practice {
  background-color: #e8f5e9;
  color: #388e3c;
}

.practice-btn.phrase-practice:hover {
  background-color: #388e3c;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(56, 142, 60, 0.3);
}

.practice-btn.sentence-practice {
  background-color: #fff3e0;
  color: #f57c00;
}

.practice-btn.sentence-practice:hover {
  background-color: #f57c00;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(245, 124, 0, 0.3);
}

.practice-btn.mixed-practice {
  background-color: #f3e5f5;
  color: #7b1fa2;
}

.practice-btn.mixed-practice:hover {
  background-color: #7b1fa2;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(123, 31, 162, 0.3);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .course-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}

@media (max-width: 992px) {
  .course-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 768px) {
  .course-list-container {
    padding: 16px;
    margin: 0;
    padding-bottom: 24px;
  }
  
  .course-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .course-card {
    max-width: 100%;
  }
  
  .modal-content {
    margin: 0;
    max-height: 90vh;
    border-radius: 16px 16px 0 0;
  }
  
  .modal-header {
    padding: 1rem 1.5rem;
  }
  
  .modal-body {
    padding: 1.5rem;
  }
  
  .lesson-actions {
    flex-direction: column;
  }
  
  .practice-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .course-content {
    padding: 16px;
  }
  
  .course-title {
    font-size: 1.1rem;
  }
  
  .course-actions {
    flex-direction: column;
  }
  
  .view-course-btn,
  .add-course-btn {
    width: 100%;
  }
}/* 登录页面外层容器 - 防止滚动条 */
.login-page-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  z-index: 0;
}

/* 科技感玻璃效果登录页面样式 */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--login-bg-gradient, linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%));
  padding: 1rem;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: relative;
  box-sizing: border-box;
  animation: fadeIn 0.8s ease-out;
}

/* 登录内容包装器 - 确保内容在视口内 */
.login-content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  width: 100%;
  max-width: 500px;
  max-height: calc(100vh - 160px);
  padding: 0 16px;
  overflow: hidden;
  position: relative;
  z-index: 2;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 登录页面主题切换按钮样式 */
.login-theme-toggle {
  position: absolute;
  top: 2rem;
  right: 2rem;
  z-index: 20;
  animation: slideInRight 0.8s ease-out 0.6s both;
}

@keyframes slideInRight {
  from { 
    opacity: 0;
    transform: translateX(30px);
  }
  to { 
    opacity: 1;
    transform: translateX(0);
  }
}

.login-theme-toggle .theme-toggle {
  background: var(--login-theme-toggle-bg, rgba(255, 255, 255, 0.1));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--login-theme-toggle-border, rgba(255, 255, 255, 0.2));
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--login-theme-toggle-color, #ffffff);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--login-theme-toggle-shadow, 0 4px 15px rgba(0, 0, 0, 0.2));
}

.login-theme-toggle .theme-toggle:hover {
  background: var(--login-theme-toggle-hover-bg, rgba(255, 255, 255, 0.2));
  transform: scale(1.1);
  box-shadow: var(--login-theme-toggle-hover-shadow, 0 6px 20px rgba(0, 0, 0, 0.3));
}

/* 动态背景粒子效果 */
.login-page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(120, 119, 198, 0.3) 0%, transparent 20%),
    radial-gradient(circle at 80% 70%, rgba(255, 119, 198, 0.3) 0%, transparent 20%),
    radial-gradient(circle at 40% 80%, rgba(120, 219, 255, 0.2) 0%, transparent 20%);
  animation: floatingParticles 20s ease-in-out infinite;
  z-index: 0;
}

@keyframes floatingParticles {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(20px, -20px) rotate(1deg); }
  66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

.login-page-header {
  text-align: center;
  margin-bottom: 1rem;
  max-width: 90vw;
  box-sizing: border-box;
  padding: 1.25rem 2rem;
  border-radius: 20px;
  background: var(--login-header-bg, rgba(255, 255, 255, 0.1));
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--login-header-border, rgba(255, 255, 255, 0.2));
  box-shadow: 
    var(--login-header-shadow, 0 8px 32px rgba(0, 0, 0, 0.2)),
    inset 0 1px 0 var(--login-header-inset-shadow, rgba(255, 255, 255, 0.2));

  position: relative;
  z-index: 1;
  overflow: hidden;
  transform: translateY(0);
  transition: transform 0.5s ease;
  animation: fadeIn 0.8s ease-out 0.2s both;
}

/* 移除位移动画以避免居中受影响，统一使用淡入 */

.login-page-header:hover {
  transform: translateY(-5px);
}

/* 玻璃反光效果 */
.login-page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: left 0.75s;
  z-index: -1;
}

.login-page-header:hover::before {
  left: 150%;
}

.login-page-header h1 {
  color: var(--login-title-color, #ffffff);
  margin-bottom: 0.5rem;
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: var(--login-title-shadow, 0 2px 10px rgba(0, 0, 0, 0.3));
  background: var(--login-title-gradient, linear-gradient(135deg, #ffffff 0%, #a8edea 50%, #fed6e3 100%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
  animation: textGlow 3s ease-in-out infinite alternate;
  white-space: nowrap;
}

@keyframes textGlow {
  from { filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5)); }
  to { filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.8)); }
}

/* 登录表单容器动画 */
.login-page .login-form {
  animation: slideUp 0.8s ease-out 0.4s both;
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(30px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}/* 主题选择页面样式 */
.theme-demo-container {
  width: 100%;           /* 占满父级可用宽度 */
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.theme-demo-header {
  text-align: center;
  margin-bottom: 40px;
}

.theme-demo-header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: var(--gradient-primary, linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.theme-demo-header p {
  font-size: 1.1rem;
  color: var(--text-secondary, #4a5568);
}

/* 主题选项区域 */
.theme-options {
  margin-bottom: 40px;
}

.theme-options h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  text-align: center;
}

.theme-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.theme-card {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm, 0 2px 4px rgba(0, 0, 0, 0.05));
}

.theme-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg, 0 8px 24px rgba(0, 0, 0, 0.1));
}

.theme-card.selected {
  border-color: var(--accent-primary, #3b82f6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.theme-preview {
  height: 120px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 15px;
  position: relative;
}

.theme-preview-box {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  overflow: hidden;
}

.preview-header {
  height: 30px;
  background-color: var(--accent-primary, #3b82f6);
  position: relative;
}

.preview-content {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-button {
  width: 60px;
  height: 20px;
  background-color: var(--accent-secondary, #8b5cf6);
  border-radius: 4px;
}

.preview-text {
  height: 10px;
  width: 80%;
  background-color: var(--text-muted, #718096);
  border-radius: 2px;
}

/* 白天主题预览 */
.light-preview .preview-header {
  background-color: #ffffff;
}

.light-preview .preview-content {
  background-color: #f8fafc;
}

.light-preview .preview-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
}

.light-preview .preview-button {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
}

/* 夜间主题预览 */
.dark-preview .preview-header {
  background-color: #141925;
}

.dark-preview .preview-content {
  background-color: #0a0e1a;
}

.dark-preview .preview-card {
  background: linear-gradient(145deg, #1a2332 0%, #141925 100%);
  border: 1px solid #2a3441;
}

.dark-preview .preview-button {
  background: linear-gradient(135deg, #4dabf7 0%, #9775fa 100%);
}

.theme-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  text-align: center;
}

.color-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.color-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.color-dot:hover {
  transform: scale(1.2);
}

/* UI元素展示区域 */
.ui-elements-showcase {
  margin-top: 40px;
}

.ui-elements-showcase h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  text-align: center;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.showcase-section {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow-sm, 0 2px 4px rgba(0, 0, 0, 0.05));
}

.showcase-section h3 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: var(--text-primary, #1a1f36);
}

.button-examples {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--gradient-primary, linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%));
  color: var(--text-accent, #ffffff);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
}

.btn-secondary {
  padding: 8px 16px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg-tertiary, #f0f2ff);
  color: var(--text-primary, #1a1f36);
}

.btn-secondary:hover {
  border-color: var(--accent-primary, #3b82f6);
}

.card-examples .card {
  padding: 15px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 8px;
  background: var(--bg-secondary, #ffffff);
}

.card-examples .card h4 {
  margin-bottom: 10px;
  color: var(--text-primary, #1a1f36);
}

.card-examples .card p {
  color: var(--text-secondary, #4a5568);
  font-size: 0.9rem;
}

.input-field {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg-secondary, #ffffff);
  color: var(--text-primary, #1a1f36);
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-primary, #3b82f6);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.stat-examples {
  display: flex;
  gap: 15px;
}

.stat-item {
  width: 8rem;
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-align: center;
  background: var(--bg-secondary, #ffffff);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary, #4a5568);
  margin-bottom: 5px;
}

.stat-value {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--accent-primary, #3b82f6);
}

/* 响应式设计 - 暂不启用，统一桌面布局
@media (max-width: 480px) {
  .theme-demo-container {
    padding: 15px;
  }
  
  .theme-demo-header h1 {
    font-size: 2rem;
  }
  
  .theme-cards {
    grid-template-columns: 1fr;
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-examples {
    flex-direction: column;
  }
}
*//* 打字练习页面样式 - 支持主题系统 */

/* 局部变量定义 - 增强一致性 */
.practice-page-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  /* 水平居中 */
  padding: 24px;
  /* 为内容提供呼吸空间 */
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  /* 内容从顶部开始排列 */
  position: relative;
  isolation: isolate;

  /* Sci-Fi Grid Background */
  background-image:
    linear-gradient(rgba(0, 243, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* 统一卡片容器基础样式 - 确保不影响页面布局 */
.unified-card-container {
  position: fixed;
  z-index: 9999;
  /* 提高z-index确保在最上层 */
  pointer-events: none;
  /* 容器本身不响应鼠标事件，只有内容响应 */
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* 卡片容器显示状态 */
.unified-card-container.show {
  opacity: 1;
  visibility: visible;
}

/* 答案卡片容器 - 页面居中 */
.unified-card-container.answer-card {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  z-index: 90000;
  display: flex;
  justify-content: center;
  pointer-events: none;
  /* 允许点击穿透，以便点击顶部的按钮 */
}

/* 答案卡片内容 - 恢复点击事件 */
.unified-card-content {
  pointer-events: auto;
  width: 100%;
  display: flex;
  justify-content: center;
}

/* 提示卡片容器 - 页面顶部居中，header下方 */
.unified-card-container.hint-card {
  position: fixed !important;
  top: calc(var(--header-height) + 10px) !important;
  /* 动态计算与header的距离 */
  left: 50% !important;
  transform: translateX(-50%) !important;
  width: 90% !important;
  /* 使用百分比替代vw */
  max-width: 800px !important;
  z-index: 100000 !important;
  /* 使用更高的z-index确保在最上层 */
  display: flex !important;
  justify-content: center !important;
  pointer-events: auto !important;
  border-radius: 12px !important;
  box-shadow: none !important;
  padding: 16px !important;
  /* 确保不受父元素影响 */
  isolation: isolate !important;
  /* 添加动画效果 */
  animation: slideDown 0.3s ease-out !important;
}

/* 新的提示卡片容器样式 - 独立于统一卡片样式，与上面保持一致 */
.hint-card-container {
  position: fixed !important;
  top: calc(var(--header-height) + 10px) !important;
  /* 动态计算与header的距离 */
  left: 50% !important;
  transform: translateX(-50%) !important;
  width: 85% !important;
  /* 使用百分比替代vw */
  max-width: none !important;
  /* 移除最大宽度限制，让卡片可以达到85vw */
  z-index: 100000 !important;
  /* 使用更高的z-index确保在最上层 */
  display: flex !important;
  justify-content: center !important;
  pointer-events: auto !important;
  border-radius: 12px !important;
  box-shadow: none !important;
  padding: 16px !important;
  /* 确保不受父元素影响 */
  isolation: isolate !important;
  /* 添加动画效果 */
  animation: slideDown 0.3s ease-out !important;
  /* 默认隐藏状态 */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.hint-card-container.show {
  opacity: 1;
  visibility: visible;
}

/* 答案卡片显示动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* 提示卡片滑入动画 */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* 答案卡片隐藏动画 */
@keyframes fadeOut {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

/* .practice-page-layout .practice-main 已被移除，以遵循全局布局规范 */

/* 当引导卡片显示时隐藏练习页面内容 */
.practice-page-container.intro-card-visible .practice-page {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* 当引导卡片显示时隐藏统计区域 */
.practice-page-container.intro-card-visible .practice-stats-section {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* 当答案卡片显示时隐藏练习区域 */
.practice-page-container.answer-card-visible .practice-page {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* practice-stats-section在答案卡片显示时保持可见 */
.practice-page-container.answer-card-visible .practice-stats-section {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* 引导卡片容器 - 页面居中显示 */
.practice-intro-card-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10000;
  /* 确保在页面内容上方 */
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: auto;
  /* 允许容器响应鼠标事件 */
}

.practice-page {
  background: var(--bg-primary);
  color: var(--text-primary);
  width: 100%;
  max-width: 100%;
  height: auto;
  /* 根据内容自适应 */
  max-height: none;
  /* 移除最大高度限制 */
  overflow: visible;
  /* 改为visible，移除内部滚动 */
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* 改为居中，而不是space-between */
  align-items: center;
  /* 添加水平居中 */
  position: relative;
}

/* 打字区域样式 - 确保不受卡片影响 */
.ta-typing-area {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  position: relative;
  z-index: 10;
  /* 降低z-index，确保在卡片下方 */
  max-width: 1200px;
  /* 添加最大宽度，与其他容器保持一致 */
  margin: 0 auto;
  /* 添加水平居中 */
  /* 移除强制偏移，让父容器控制居中 */
  /* margin-top: calc(50vh - 250px - 8rem); */
  /* 禁用此偏移，让flexbox处理居中 */
  /* 确保不受卡片影响 */
  isolation: isolate;
  /* 创建新的层叠上下文 */
}

.ta-new-typing-interface {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  position: relative;
  z-index: 10;
  max-width: 1200px;
  /* 添加最大宽度，与ta-word-units-container保持一致 */
  margin: 0 auto;
  /* 添加水平居中 */
  /* 移除强制偏移，让父容器控制居中 */
  /* margin-top: calc(50vh - 250px - 8rem); */
  /* 禁用此偏移，让flexbox处理居中 */
}

.ta-typing-loading-message {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow-small);
  z-index: 10;
}

/* 各个区域的通用样式 */
.progress-section,
.typing-section {
  width: 100%;
  max-width: 100%;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  box-sizing: border-box;
}

/* 练习快捷键提示区域样式 - 固定在统计区域上方 */
.practice-shortcut-hint-container {
  position: fixed;
  bottom: 70px;
  left: 0;
  right: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 8px 20px;
  /* 减少内边距 */
  box-sizing: border-box;
  z-index: 99;
  /* 略低于practice-stats-section的z-index: 100 */
  background: transparent;
  /* 保持透明背景 */
}

/* 练习统计区域样式 - 位于屏幕底部 */
.practice-stats-section {
  position: fixed;
  /* 固定定位到屏幕底部 */
  bottom: 0;
  /* 紧挨屏幕底部 */
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  /* 使用主题背景色 */
  border-top: 1px solid var(--border-color);
  /* 使用主题边框色 */
  box-shadow: var(--shadow-medium, 0 -4px 10px rgba(0, 0, 0, 0.1));
  /* 使用主题阴影 */
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  /* 增加内边距，从8px改为12px，给文字更多空间 */
  z-index: 100;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  margin: 0;
  /* 设置margin为0，确保没有外边距 */
  min-height: 70px;
  /* 进一步增加最小高度限制，从60px改为70px */
  max-height: 100px;
  /* 进一步增加最大高度限制，从80px改为100px */
  height: auto;
  /* 允许高度根据内容自适应 */
}

/* 右侧“下一题”浮动按钮 */
.practice-next-btn {
  position: fixed;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  z-index: 150;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.practice-next-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-50%) scale(1.06);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.practice-next-btn:active {
  transform: translateY(-50%) scale(0.98);
}

@media (max-width: 768px) {
  .practice-next-btn {
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

.practice-stats-section .stats-container {
  display: flex;
  justify-content: flex-start;
  /* 改为左对齐 */
  gap: 1rem;
  /* 从2rem减少到1rem */
  margin: 0;
  width: 100%;
  /* 改为100%宽度 */
  max-width: 1200px;
  /* 添加最大宽度限制 */
  height: auto;
  /* 允许高度自适应 */
  align-items: center;
  /* 垂直居中对齐 */
  padding: 0 20px;
  /* 添加左右内边距 */
  box-sizing: border-box;
  /* 确保内边距包含在宽度内 */
}

/* 高优先级样式确保stat-item横向排列 */
.practice-stats-section .stat-item {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: space-between !important;
  /* 改为space-between，让label和value分别左右对齐 */
  gap: 4px !important;
  /* 从6px减少到4px */
  white-space: nowrap !important;
  flex-wrap: nowrap !important;
  padding: 2px 6px !important;
  /* 添加紧凑的内边距 */
  margin: 0 !important;
  height: auto !important;
  /* 允许高度自适应 */
  flex: 1;
  /* 让stat-item占满可用空间 */
  min-width: 80px;
  /* 设置最小宽度，确保内容不会挤压 */
  background-color: transparent !important;
  /* 移除背景色，适应主题 */
  border: none !important;
}

.practice-stats-section .stat-label,
.practice-stats-section .stat-value {
  display: inline-block !important;
  white-space: nowrap !important;
  flex-shrink: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1 !important;
}

.practice-stats-section .stat-label {
  color: var(--text-secondary) !important;
}

.practice-stats-section .stat-value {
  color: var(--accent-primary) !important;
}

/* 练习进度区域样式 */
.progress-section {
  margin-bottom: 1rem;
}

.progress-section .practice-progress {
  text-align: center;
  width: 100%;
}

/* 打字区域样式 */
.typing-section {
  width: 100%;
  max-width: 100%;
  /* 改为100%而不是100vw，避免水平滚动条 */
  margin-bottom: 1.5rem;
  order: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: visible;
  /* 修改为visible，避免单词单元被截断 */
  box-sizing: border-box;
}

/* 错误提示 */
.error-message {
  background: var(--error-bg);
  color: var(--error-color);
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  border-left: 4px solid var(--error-color);
}

/* 内容区域 */
.practice-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 练习控制面板 */
.practice-controls {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-small);
  border: 1px solid var(--border-color);
}

.control-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 16px;
}

.control-row:last-child {
  margin-bottom: 0;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.control-label {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.control-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  min-width: 120px;
}

.control-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.btn {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-primary);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 练习区域 */
.practice-area {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-small);
  border: 1px solid var(--border-color);
}

/* 练习页面标题 - 移动到PracticeLayout组件中 */
.practice-page-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.practice-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.timer-icon {
  color: var(--text-secondary);
}

/* 文本显示区域 */
.text-display {
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-lg);
  line-height: 1.6;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.text-display.correct {
  color: var(--success-color);
}

.text-display.incorrect {
  color: var(--error-color);
}

.text-display.current {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-radius: 3px;
  padding: 0 2px;
}

/* 输入区域 */
.input-area {
  margin-bottom: 20px;
}

.input-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.text-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-lg);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.text-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.text-input:disabled {
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* 进度条 */
.progress-bar {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-fill {
  height: 100%;
  background: var(--accent-primary);
  transition: width 0.3s ease;
}

/* 统计信息 */
.practice-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

/* 结果展示 */
.results-container {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-small);
  border: 1px solid var(--border-color);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.results-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.results-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.results-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.results-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.result-stat {
  text-align: center;
}

.result-stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.result-stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
}

.result-stat-value.excellent {
  color: var(--success-color);
}

.result-stat-value.good {
  color: var(--accent-primary);
}

.result-stat-value.average {
  color: var(--color-warning);
}

.result-stat-value.poor {
  color: var(--error-color);
}

.results-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 历史记录 */
.history-panel {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow-small);
  border: 1px solid var(--border-color);
}

/* 新增：横线打字界面样式 */
.new-typing-interface {
  margin-bottom: 2rem;
  padding: 2rem;
  background: transparent;
  border-radius: 0;
  border: none;
}

/* 单词单元容器 */
.ta-word-units-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  /* 改为100%而不是100vw，避免水平滚动条 */
  padding: 0 1rem;
  box-sizing: border-box;
  position: relative;
  z-index: 100;
  /* 增加z-index确保单词单元不被其他元素遮挡 */
}

/* 单词单元 - 每个单词对应一个单元 */
.ta-word-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  min-width: 90px;
  /* 增加最小宽度以适应3rem字体和新的宽度计算 */
  height: 80px;
  /* 增加到80px高度 */
  justify-content: flex-end;
  /* 确保内容靠底部对齐 */
  z-index: 101;
  /* 增加z-index确保单词单元不被其他元素遮挡 */
}

/* 当前单词单元高亮 */
.ta-word-unit.ta-current {
  border-radius: 6px;
  /* 增加圆角以适应更大的字体 */
  padding: 8px;
  /* 增加内边距以适应更大的字体 */
  height: 80px;
  /* 与普通word-unit高度一致 */
  box-sizing: border-box;
  /* 确保padding包含在高度内 */
}

/* 单词单元中的字符容器 */
.ta-word-characters {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 4px;
  min-height: 60px;
  /* 确保有足够的高度显示字符 */
  font-family: var(--font-family-mono, 'Consolas', monospace);
  /* Use Sci-Fi Mono Font */
  font-size: calc(3rem * var(--typing-scale, 1));
  /* 设置字符字体大小为3rem */
  color: var(--text-primary);
  /* 设置默认字符颜色 */
  text-shadow: 0 0 10px var(--shadow-glow, rgba(0, 243, 255, 0.3));
  /* Enhanced sci-fi glow */
  position: relative;
  z-index: 102;
  /* 增加z-index确保字符不被其他元素遮挡 */
}

/* 反馈内容样式 (音标、翻译等) */
.feedback-content {
  margin-bottom: 1.5rem;
  text-align: center;
  padding: 0.5rem 1rem;
  background: rgba(var(--bg-secondary-rgb, 20, 30, 45), 0.6);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  max-width: 80%;
  margin-left: auto;
  margin-right: auto;
}

.feedback-text {
  margin: 0;
  font-size: calc(1.2rem * var(--typing-scale, 1));
  line-height: 1.5;
}

.phonetics-feedback .feedback-text {
  font-family: 'Consolas', monospace;
  color: var(--accent-primary);
  letter-spacing: 1px;
}

.translation-feedback .feedback-text {
  color: var(--text-secondary);
  font-weight: 500;
}

.shadowing-feedback .feedback-text,
.reading-feedback .feedback-text {
  color: var(--text-primary);
  font-style: italic;
}

/* 当前单词单元中的文字大小 */
.ta-word-unit.ta-current .ta-word-characters {
  font-size: calc(3rem * var(--typing-scale, 1));
  /* 设置当前单词的字体大小为3rem */
}

/* 单词横线 */
.ta-word-underline {
  height: 4px;
  /* 固定下划线高度，不随字体大小变化 */
  background-color: var(--border-color);
  border-radius: 3px;
  /* 增加圆角半径 */
  transition: all 0.2s ease;
  width: 100%;
  min-width: 50px;
  /* 增加最小宽度以适应更大的字体 */
  position: absolute;
  bottom: 0;
  /* 始终固定在底部 */
  z-index: 100;
  /* 增加z-index确保横线不被其他元素遮挡 */
}

/* 聚焦单词横线样式 */
.ta-word-unit.ta-focused .ta-word-underline {
  background-color: transparent;
  background-image: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
  height: 6px;
  /* 聚焦时增加高度，固定值 */
  box-shadow: 0 0 20px rgba(255, 0, 110, 0.9);
  /* 添加阴影效果 */
  animation: pulse 1.5s infinite alternate;
  filter: brightness(1.5) contrast(1.2);
}

/* 当前输入单词的高亮 */
.ta-input-word.ta-current {
  animation: pulse 1s infinite;
}

/* 当前横线高亮 */
.ta-word-underline.ta-current {
  background-color: var(--accent-primary);
  height: 4px;
  /* 与普通下划线高度一致 */
  box-shadow: 0 0 8px var(--glow-color, rgba(33, 150, 243, 0.5));
  /* 增加阴影效果 */
}

/* 横线悬停效果 */
.ta-word-underline:hover {
  background-color: var(--accent-primary);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 33, 150, 243), 0.4);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(var(--primary-color-rgb, 33, 150, 243), 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 33, 150, 243), 0);
  }
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.history-title {

  /* 移动端响应式布局 */
  @media (max-width: 768px) {
    .practice-page-container {
      padding: 16px 8px;
      /* 调整移动端内边距 */
    }

    .practice-stats-section {
      padding: 8px 12px;
      min-height: auto;
      /* 高度自适应 */
      flex-wrap: wrap;
      /* 允许内容换行 */
      height: auto;
      bottom: 0;
    }

    .practice-stats-section .stats-container {
      gap: 0.5rem;
      padding: 0;
      flex-wrap: wrap;
      justify-content: space-around;
    }

    .practice-stats-section .stat-item {
      min-width: 60px;
      /* 减小最小宽度 */
      flex: 1 1 40%;
      /* 允许换行 */
      justify-content: center;
    }

    /* 调整快捷键提示位置，避免与统计区域重叠 */
    .practice-shortcut-hint-container {
      bottom: 100px;
      /* 预留足够空间给换行的统计区域 */
    }

    .unified-card-container.hint-card,
    .hint-card-container {
      width: 95% !important;
    }

    .ta-word-units-container {
      padding: 0 4px;
    }
  }

  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.history-list {
  max-height: 300px;
  overflow-y: auto;
}

.history-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-item:last-child {
  border-bottom: none;
}

.history-date {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.history-stats {
  display: flex;
  gap: 16px;
}

.history-stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.history-stat-label {
  color: var(--text-secondary);
}

/* 字符级别的样式 */
.ta-character {
  position: relative;
  display: inline-block;
  font-size: calc(var(--font-size-display, 2.5rem) * var(--typing-scale, 1));
  /* 设置字符字体大小为2.5rem，与font元素匹配 */
  z-index: 103;
  /* 增加z-index确保字符不被其他元素遮挡 */
}

.ta-character.ta-correct {
  color: var(--success-color);
}

.ta-character.ta-incorrect {
  color: var(--color-warning, #FF9800);
  /* 使用警告色代替红色，使错误不那么刺眼 */
  font-weight: 700;
  /* 增加字体粗细 */
}

.ta-character.ta-current {
  border-radius: 2px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0 0 8px 0;
  color: var(--text-primary);
}

.empty-description {
  font-size: var(--font-size-sm);
  margin: 0;
  line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .practice-content {
    padding: 0 15px;
  }

  /* 移动端同样避免vw导致的偏移问题 */
  .practice-page-container {
    width: 100%;
  }

  .practice-controls {
    padding: 16px;
  }

  .control-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .control-group {
    justify-content: space-between;
  }

  .practice-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .results-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .btn {
    justify-content: center;
  }

  /* 移动端提示卡片适配 */
  .unified-card-container.hint-card {
    top: 70px !important;
    /* 移动端header可能稍小，但仍需要足够空间 */
    width: 95% !important;
    /* 避免vw引发滚动条 */
    max-width: none !important;
    padding: 12px !important;
    z-index: 100000 !important;
    /* 使用更高的z-index确保在最上层 */
  }

  /* 移动端新的提示卡片容器样式 */
  .hint-card-container {
    top: 70px !important;
    /* 移动端header可能稍小，但仍需要足够空间 */
    width: 95% !important;
    /* 避免vw引发滚动条 */
    max-width: none !important;
    padding: 12px !important;
    z-index: 100000 !important;
    /* 使用更高的z-index确保在最上层 */
  }
}

/* 缺失参数提示界面样式 */
.missing-params-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  margin: 2rem auto;
  max-width: 600px;
}

.missing-params-message h2 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: var(--font-size-2xl);
  font-weight: 600;
}

.missing-params-message p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: var(--font-size-lg);
  line-height: 1.5;
}

.action-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.back-to-courses-btn,
.refresh-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.back-to-courses-btn {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
}

.back-to-courses-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

.refresh-btn {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.refresh-btn:hover {
  background-color: var(--bg-secondary);
  transform: translateY(-2px);
}

.debug-info {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  padding: 1rem;
  text-align: left;
  font-size: var(--font-size-sm);
  max-width: 100%;
  overflow-x: auto;
}

.debug-info p {
  margin: 0.5rem 0;
  font-family: var(--font-family-mono);
}

.debug-info strong {
  color: var(--text-primary);
}

/* 移动端适配 */
@media (max-width: 768px) {
  .missing-params-message {
    margin: 1rem;
    padding: 1.5rem;
    min-height: 50vh;
  }

  .action-buttons {
    flex-direction: column;
    gap: 0.75rem;
  }

  .back-to-courses-btn,
  .refresh-btn {
    width: 100%;
    max-width: 250px;
  }
}

/* 练习模式反馈内容样式 */
.feedback-content {
  width: 100%;
  max-width: 800px;
  margin: 0 auto 2rem auto;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  text-align: center;
}

/* 翻译模式反馈样式 - 无背景和边框 */
.feedback-content.translation-feedback {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
}

/* 音标模式反馈样式 - 无背景和边框 */
.feedback-content.phonetics-feedback {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
}

.feedback-text {
  font-size: calc(var(--font-size-2xl) * var(--typing-scale, 1));
  line-height: 1.6;
  color: var(--text-primary);
  margin: 0;
  font-weight: 500;
}

/* 跟读模式反馈样式 */
.feedback-content.shadowing-feedback {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--text-inverse);
  border: none;
}

.feedback-content.shadowing-feedback .feedback-text {
  color: var(--text-inverse);
  font-weight: 600;
}

/* 朗读模式反馈样式 */
.feedback-content.reading-feedback {
  background: var(--bg-tertiary);
  border: 2px solid var(--accent-primary);
}

.feedback-content.reading-feedback .feedback-text {
  color: var(--text-primary);
  font-weight: 500;
}

/* 移动端反馈内容适配 */
@media (max-width: 768px) {
  .feedback-content {
    margin: 0 auto 1.5rem auto;
    padding: 1rem;
    max-width: 95%;
  }

  .feedback-text {
    font-size: 1.1rem;
    line-height: 1.5;
  }
}

/* 全新设计的空闲锁定遮罩 */
.new-pause-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  /* Fallback */
  background: var(--overlay-bg, rgba(0, 0, 0, 0.7));
  /* 使用主题变量 */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2147483647;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 1;
  transition: background-color 0.3s ease;
}

.new-pause-card {
  background: var(--bg-card, #ffffff);
  /* 使用主题卡片背景 */
  border-radius: 24px;
  padding: 48px;
  width: 90%;
  max-width: 420px;
  text-align: center;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px var(--border-color, rgba(255, 255, 255, 0.1));
  /* 边框适配主题 */
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  opacity: 1;
  transform: scale(1);
  animation: simplePopIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.05));
}

@keyframes simplePopIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* 顶部装饰条 - 使用渐变主题色 */
.new-pause-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--accent-primary, #3b82f6) 0%, var(--accent-secondary, #8b5cf6) 100%);
  display: block;
  z-index: 1;
}

.new-pause-icon-wrapper {
  width: 80px;
  height: 80px;
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  /* 使用主题色半透明背景 */
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--accent-primary, #3b82f6);
  /* 使用主题强调色 */
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.15);
  flex-shrink: 0;
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2);
}

.new-pause-icon-wrapper svg {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.new-pause-title {
  font-family: var(--font-family-base, system-ui, -apple-system, sans-serif);
  font-size: 1.75rem;
  /* 28px */
  font-weight: 800;
  color: var(--text-primary, #1e293b);
  /* 使用主题主文字色 */
  margin: 0 0 12px 0;
  line-height: 1.2;
  display: block;
  letter-spacing: -0.02em;
}

.new-pause-subtitle {
  font-family: var(--font-family-base, system-ui, -apple-system, sans-serif);
  font-size: 1.1rem;
  /* 17.6px */
  color: var(--text-secondary, #64748b);
  /* 使用主题次文字色 */
  margin: 0 0 36px 0;
  line-height: 1.6;
  display: block;
  max-width: 80%;
}

.new-pause-action {
  width: 100%;
  display: flex;
  justify-content: center;
}

.new-pause-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--bg-secondary, #f1f5f9);
  /* 使用主题次级背景 */
  color: var(--text-secondary, #475569);
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--border-color, #e2e8f0);
  transition: all 0.3s ease;
  cursor: pointer;
  /* 暗示可点击 */
}

.new-pause-hint:hover {
  background: var(--bg-hover, #e2e8f0);
  color: var(--text-primary, #1e293b);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  border-color: var(--accent-primary, #3b82f6);
}

/* 呼吸动画优化 */
@keyframes softPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2);
  }

  50% {
    transform: scale(1.03);
    box-shadow: 0 0 0 8px rgba(var(--accent-primary-rgb, 59, 130, 246), 0);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(var(--accent-primary-rgb, 59, 130, 246), 0);
  }
}

.new-pause-hint {
  animation: softPulse 3s infinite;
}

/* 添加微妙的动画效果 */
@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-3px);
  }
}

.idle-lock-content h3 {
  animation: float 3s ease-in-out infinite;
}

/* 添加光晕效果 - 增强玻璃反光，使用主题色 */
.idle-lock-content::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, rgba(var(--primary-color-rgb, 255, 107, 53), 0.15) 30%, transparent 70%);
  animation: rotate 20s linear infinite;
  pointer-events: none;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* 移动端适配 */
@media (max-width: 768px) {
  .idle-lock-content {
    padding: 2.5rem 2rem;
    margin: 20px;
    min-width: auto;
    width: calc(100% - 40px);
    border-radius: 20px;
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
  }

  .idle-lock-content h3 {
    font-size: var(--font-size-2xl);
  }

  .idle-lock-content p {
    font-size: var(--font-size-base);
  }
}

/* ==========================================
   Practice Task List Modal Redesign
   ========================================== */

/* 覆盖 Modal 的默认内边距，以便更好地利用空间 */
.modal-content.modal-large .modal-body {
  padding: 1.5rem;
  background-color: var(--bg-primary, #f1f5f9);
  /* 给整个列表区域一个浅灰背景 */
  /* 添加微妙的反射效果 */
  position: relative;
  overflow-y: auto;
  /* 改为允许垂直滚动 */
  overflow-x: hidden;
  /* 水平方向保持隐藏 */
}

.modal-content.modal-large .modal-body::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg,
      transparent 30%,
      rgba(255, 255, 255, 0.1) 50%,
      transparent 70%);
  animation: shimmer 3s infinite;
  pointer-events: none;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
  }

  100% {
    transform: translateX(100%) translateY(100%) rotate(45deg);
  }
}

[data-theme='dark'] .modal-content.modal-large .modal-body {
  background-color: var(--bg-primary, #0f172a);
  /* 深色主题下的反射效果 */
  position: relative;
  overflow-y: auto;
  /* 改为允许垂直滚动 */
  overflow-x: hidden;
  /* 水平方向保持隐藏 */
}

[data-theme='dark'] .modal-content.modal-large .modal-body::before {
  background: linear-gradient(45deg,
      transparent 30%,
      rgba(147, 197, 253, 0.1) 50%,
      /* 改为浅蓝色反光，更柔和 */
      transparent 70%);
  animation: shimmer 4s infinite;
}

.practice-task-list-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding: 4px;
  /* 移除内部滚动，让模态框主体负责滚动 */
  max-height: none;
  overflow: visible;
}

/* 任务列表容器滚动条样式 - 保持可见以提供良好的滚动体验 */

.practice-task-item {
  display: flex;
  align-items: flex-start;
  /* 改为顶部对齐，适应多行文本 */
  gap: 12px;
  padding: 16px;
  background: var(--bg-card, #ffffff);
  border: 1px solid transparent;
  border-radius: 12px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  min-height: 80px;
}

[data-theme='dark'] .practice-task-item {
  background: var(--bg-secondary, #1e293b);
  border-color: rgba(255, 255, 255, 0.05);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.practice-task-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  border-color: var(--primary-color-light, #93c5fd);
  z-index: 5;
  /* 降低z-index避免超过模态框头部 */
  /* 添加微妙的色彩变化 */
  background: linear-gradient(135deg, var(--bg-card, #ffffff) 0%, rgba(59, 130, 246, 0.05) 100%);
}

[data-theme='dark'] .practice-task-item:hover {
  border-color: var(--primary-color-dark, #1e40af);
  background: var(--bg-secondary-hover, #334155);
}

/* Current Task Style - 更现代的高亮风格 */
.practice-task-item.current {
  background: var(--bg-card, #ffffff);
  border: 2px solid var(--primary-color, #3b82f6);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  /* 添加发光动画效果 */
  animation: glowPulse 2s ease-in-out infinite;
  position: relative;
  z-index: 5;
  /* 控制发光效果层级，避免超过模态框头部 */
  isolation: isolate;
  /* 创建新的层叠上下文，隔离发光效果 */
}

@keyframes glowPulse {

  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1), 0 4px 15px rgba(59, 130, 246, 0.15);
  }

  50% {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2), 0 6px 20px rgba(59, 130, 246, 0.25);
  }
}

[data-theme='dark'] .practice-task-item.current {
  background: var(--bg-secondary, #1e293b);
  border-color: var(--primary-color, #3b82f6);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
  /* 深色主题下的发光动画 */
  animation: glowPulseDark 2s ease-in-out infinite;
}

@keyframes glowPulseDark {

  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15), 0 4px 15px rgba(59, 130, 246, 0.2);
  }

  50% {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25), 0 6px 20px rgba(59, 130, 246, 0.35);
  }
}

/* Completed Task Style */
.practice-task-item.completed {
  background: var(--bg-card, #ffffff);
  border-color: var(--success-color, #10b981);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--success-color, #10b981) inset;
}

[data-theme='dark'] .practice-task-item.completed {
  background: var(--bg-secondary, #1e293b);
  border-color: var(--success-color, #10b981);
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.3) inset;
}

.practice-task-item.completed::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--success-color, #10b981);
  opacity: 0.1;
  pointer-events: none;
}

.practice-task-item.completed .task-item-text {
  color: var(--text-primary);
  opacity: 0.8;
}

.practice-task-item.completed .task-item-translation {
  color: var(--text-secondary);
  opacity: 0.8;
}



/* 响应式设计 - 移动端优化 */
@media (max-width: 768px) {
  .practice-task-list-container {
    grid-template-columns: 1fr;
    /* 单列布局 */
    gap: 12px;
    padding: 8px;
  }
}

@media (max-width: 480px) {
  .practice-task-list-container {
    padding: 4px;
  }

  .practice-task-item {
    padding: 12px;
    min-height: 72px;
  }
}

/* Index Number */
.task-item-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--text-tertiary, #94a3b8);
  min-width: 28px;
  padding-top: 2px;
  /* 微调垂直对齐 */
  font-weight: 600;
}

.practice-task-item.current .task-item-index {
  color: var(--primary-color, #3b82f6);
}

.practice-task-item.completed .task-item-index {
  color: var(--success-color, #10b981);
}

/* Content */
.task-item-content {
  flex: 1;
  min-width: 0;
  /* 防止 Flex 子项溢出 */
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-item-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary, #0f172a);
  line-height: 1.5;
  /* 允许换行，但限制行数 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: normal;
  word-break: break-word;
}

[data-theme='dark'] .task-item-text {
  color: #f1f5f9;
}

.task-item-translation {
  font-size: 0.875rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.4;
  /* 允许换行，限制行数 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: normal;
  word-break: break-word;
}

/* Status Icons & Badges */
.task-item-status {
  display: flex;
  flex-direction: column;
  /* 改为垂直排列，适应顶部对齐 */
  align-items: flex-end;
  justify-content: flex-start;
  min-width: auto;
  margin-left: 4px;
}

.status-icon-wrapper {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--success-color, #10b981);
  color: white;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.status-icon-wrapper svg {
  width: 14px;
  height: 14px;
  stroke-width: 3;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.status-badge.current {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-color, #3b82f6);
}

[data-theme='dark'] .status-badge.current {
  background: rgba(59, 130, 246, 0.2);
}

/* 脉冲点样式保持不变 */
.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@media (max-width: 640px) {
  .practice-task-list-container {
    grid-template-columns: 1fr;
  }

  .modal-content.modal-large .modal-body {
    padding: 1rem;
  }

  .practice-task-item {
    padding: 12px;
    gap: 10px;
  }
}/* 课程列表页面样式 - Updated: 2025-10-27 */
.course-list-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}
/* 课程卡片网格布局 */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  width: 100%;
  margin: 0;
  padding: 0;
}
@media (max-width: 768px) {
  .course-grid {
    gap: 8px; /* 极限紧凑 */
  }
}
/* 课程卡片样式 - Updated: 2025-10-27 - 基于earthworm设计 */
.course-card {
  background: var(--gradient-card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-small);
  transition: all 0.3s ease;
  border: 1px solid var(--border-primary);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  position: relative;
  animation: none !important; /* 强制禁用任何动画 */
  transform: none !important; /* 强制禁用任何变换 */
}
.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-primary);
}
/* 深色主题下的课程卡片样式 */
body.dark .course-card,
body.nebula-dark .course-card,
body.aurora-dark .course-card,
body.cyberpunk-dark .course-card {
  background: var(--gradient-card) !important;
  border: 1px solid var(--border-color);
}
/* 深色主题标题样式 */
body.cyberpunk-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}
body.aurora-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}
body.nebula-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}
/* dark的hover效果 */
body.dark .course-card:hover {
  background: linear-gradient(145deg, #1a2332 0%, #0f1420 100%) !important;
}
/* 其他深色主题变体的hover效果 */
body.nebula-dark .course-card:hover,
body.aurora-dark .course-card:hover,
body.cyberpunk-dark .course-card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
/* 课程图片区域 */
.course-image-container {
  position: relative;
  height: 160px;
  overflow: hidden;
}
.course-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.course-card:hover .course-image {
  transform: scale(1.05);
}
.course-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
}
/* 难度标签 */
.difficulty-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.difficulty-beginner {
  background-color: #4caf50;
  color: white;
}
.difficulty-intermediate {
  background-color: #ff9800;
  color: white;
}
.difficulty-advanced {
  background-color: #f44336;
  color: white;
}
/* 课程内容区域 */
.course-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-header {
  margin-bottom: 12px;
}
.course-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.lesson-count,
.course-duration {
  display: flex;
  align-items: center;
  gap: 4px;
}
.icon-lesson::before {
  content: "📚";
}
.icon-time::before {
  content: "⏱️";
}
/* 课程描述 */
.course-description {
  color: var(--text-secondary);
  margin: 0 0 16px 0;
  line-height: 1.5;
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
/* 课程标签 */
.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.tag {
  padding: 4px 8px;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}
.tag-more {
  padding: 4px 8px;
  background-color: var(--bg-tertiary);
  color: var(--text-tertiary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}
/* 课程操作按钮 */
.course-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}
.view-course-btn,
.add-course-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}
.view-course-btn {
  background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
  color: white;
}
.view-course-btn:hover {
  background: linear-gradient(45deg, var(--accent-primary-dark), var(--accent-secondary-dark));
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}
.add-course-btn {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}
.add-course-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-secondary);
}
.add-course-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
/* 模态框样式 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(4px);
}
.modal-content {
  background: var(--bg-card);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  border-radius: 16px 16px 0 0;
  z-index: 10;
}
.modal-header h2 {
  font-size: 1.75rem;
  color: var(--text-primary);
  margin: 0;
  font-weight: 700;
}
.close-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}
.close-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
  transform: rotate(90deg);
}
.modal-body {
  padding: 2rem;
}
.modal-body .course-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}
.lessons-list h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent-primary);
  padding-bottom: 0.5rem;
}
/* 课时列表项样式 */
.lesson-item {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent-primary);
  transition: all 0.2s ease;
}
.lesson-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.lesson-info h4 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.lesson-info p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
}
.lesson-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}
.free-badge {
  background-color: var(--success-color);
  color: var(--text-inverse);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}
.lesson-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.practice-btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}
.practice-btn.word-practice {
  background-color: #e3f2fd;
  color: #1976d2;
}
.practice-btn.word-practice:hover {
  background-color: #1976d2;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(25, 118, 210, 0.3);
}
.practice-btn.phrase-practice {
  background-color: #e8f5e9;
  color: #388e3c;
}
.practice-btn.phrase-practice:hover {
  background-color: #388e3c;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(56, 142, 60, 0.3);
}
.practice-btn.sentence-practice {
  background-color: #fff3e0;
  color: #f57c00;
}
.practice-btn.sentence-practice:hover {
  background-color: #f57c00;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(245, 124, 0, 0.3);
}
.practice-btn.mixed-practice {
  background-color: #f3e5f5;
  color: #7b1fa2;
}
.practice-btn.mixed-practice:hover {
  background-color: #7b1fa2;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(123, 31, 162, 0.3);
}
/* 响应式设计 */
@media (max-width: 1200px) {
  .course-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}
@media (max-width: 992px) {
  .course-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}
@media (max-width: 768px) {
  .course-list-container {
    padding: 16px;
    margin: 0;
    padding-bottom: 24px;
  }
  
  .course-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .course-card {
    max-width: 100%;
  }
  
  .modal-content {
    margin: 0;
    max-height: 90vh;
    border-radius: 16px 16px 0 0;
  }
  
  .modal-header {
    padding: 1rem 1.5rem;
  }
  
  .modal-body {
    padding: 1.5rem;
  }
  
  .lesson-actions {
    flex-direction: column;
  }
  
  .practice-btn {
    width: 100%;
  }
}
@media (max-width: 480px) {
  .course-content {
    padding: 16px;
  }
  
  .course-title {
    font-size: 1.1rem;
  }
  
  .course-actions {
    flex-direction: column;
  }
  
  .view-course-btn,
  .add-course-btn {
    width: 100%;
  }
}
/* 页面容器 - 垂直布局 */
body .course-list-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-secondary);
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}
/* 头部筛选区域 */
.course-header-section {
  padding: 32px 40px 24px 40px;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
  box-sizing: border-box;
}
.header-top-row {
  display: flex;
  align-items: center;
}
.page-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.5px;
}
/* Search and Tabs Row */
.search-and-tabs-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
/* Tabs */
.course-tabs {
  display: flex;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: 12px;
  flex-shrink: 0;
}
.tab-btn {
  padding: 8px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.tab-btn:hover {
  color: var(--text-primary);
}
.tab-btn.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
/* Filters Row */
.filters-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
/* Search Box */
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-primary);
  padding: 12px 16px;
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.search-box:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-color-alpha);
  transform: translateY(-1px);
}
.search-icon {
  color: var(--text-tertiary);
  margin-right: 12px;
  flex-shrink: 0;
}
.search-box input {
  border: none;
  background: transparent;
  width: 100%;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
}
.sort-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}
.sort-box select {
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
}
/* Categories Section */
.categories-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.categories-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.category-pill {
  padding: 8px 18px;
  border: 1px solid transparent;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.category-pill:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}
.category-pill.active {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.25);
}
.category-more-btn {
  color: var(--primary-color);
  background: none;
  border: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 20px;
  transition: all 0.2s;
}
.category-more-btn:hover {
  background: var(--primary-color-alpha);
}
.expand-tags-toggle {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-tertiary);
  background: none;
  border: none;
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s;
}
.expand-tags-toggle:hover {
  color: var(--text-secondary);
  background: var(--bg-tertiary);
}
/* Main Content */
.course-main-content {
  flex: 1;
  padding: 0 16px 24px 16px;
  width: 100%;
  box-sizing: border-box;
  overflow: auto;
}
/* Mobile Tags Compact Bar */
.mobile-tags-bar {
  display: none;
}
.mobile-tags-btn {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: 8px;
  font-size: 14px;
}
.course-grid {
  display: grid;
  /* 桌面端固定五列，放宽列最小宽度约束 */
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  width: 100%;
}
.course-card-wrapper {
  position: relative;
}
.reorder-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
  z-index: 10;
}
.reorder-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
}
.reorder-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}
/* Increase specificity to override imported styles */
body .course-list-page .course-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.loading-container,
.error-container,
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text-secondary);
  width: 100%;
  min-height: 300px;
  text-align: center;
}
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
/* Responsive Breakpoints for Course Grid */
/* 1280px - 1450px: 4 Columns (Prevent too narrow cards on smaller desktops) */
@media (max-width: 1450px) {
  body .course-list-page .course-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
/* 1024px - 1280px: 3 Columns (Tablet Landscape / Small Laptop) */
@media (max-width: 1280px) {
  body .course-list-page .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
/* 700px - 1024px: 2 Columns (Tablet Portrait) */
@media (max-width: 1024px) {
  body .course-list-page .course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
/* < 700px: 1 Column (Mobile) */
@media (max-width: 700px) {
  body .course-list-page .course-grid {
    grid-template-columns: 1fr;
  }
}
/* Mobile Adjustments - General Layout */
@media (max-width: 768px) {
  .course-header-section {
    padding: 20px;
    gap: 20px;
  }

  .course-main-content {
    padding: 0 20px 32px 20px;
  }

  .header-top-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .course-tabs {
    width: 100%;
  }

  .tab-btn {
    flex: 1;
    text-align: center;
  }

  .search-box {
    max-width: 100%;
  }

  /* .course-grid handled by specific breakpoints above */
  .course-grid,
  body .course-list-page .course-grid {
    gap: 16px;
  }

  .categories-list {
    /* 移动端允许换行，不再强制横向滚动 */
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0;
    mask-image: none;
  }

  /* Hide inline categories on mobile, use modal instead */
  .categories-section {
    display: none;
  }

  .mobile-tags-bar {
    display: block;
  }

  .category-pill {
    flex-shrink: 0;
  }

  /* 移动端显示折叠按钮 */
  .category-more-btn,
  .expand-tags-toggle {
    display: inline-flex;
  }
}
/* Mobile Tags Modal */
.mobile-tags-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1000;
  display: flex;
  align-items: flex-end;
}
.mobile-tags-modal {
  background: var(--bg-card);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
  width: 100%;
  max-height: 80vh;
  padding: 16px;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.close-modal-btn {
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: 8px;
}
.modal-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.modal-actions-row {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}
.modal-clear-btn {
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 8px;
}
.modal-apply-btn {
  border: none;
  background: var(--primary-color);
  color: #fff;
  padding: 8px 16px;
  border-radius: 8px;
}
/* 按钮和卡片内的其他样式保留或微调 */
.course-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
  width: 100%;
}
.course-actions button {
  flex: 1;
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}
.view-course-btn {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 2px 6px rgba(var(--primary-rgb), 0.2);
}
.view-course-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}
.add-course-btn {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}
.add-course-btn:hover {
  background: var(--primary-color-alpha);
}
/* Modules View Styles */
.modules-view-container {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding-bottom: 40px;
}
.course-module-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.module-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.module-more-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.module-more-btn:hover {
  color: var(--primary-color);
}
.module-more-btn .arrow {
  font-size: 16px;
  transition: transform 0.2s;
}
.module-more-btn:hover .arrow {
  transform: translateX(2px);
}
/* Module Grid - Reuse course-grid but maybe limit rows? */
/* .module-grid uses .course-grid class so it inherits layout */
.view-all-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-top: 24px;
  position: relative;
}
.view-all-divider {
  width: 100%;
  height: 1px;
  background: var(--border-color);
  position: absolute;
  top: 50%;
  z-index: 0;
}
.view-all-btn-large {
  position: relative;
  z-index: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 24px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
}
.view-all-btn-large:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}
.btn-text {
  background: none;
  border: none;
  color: var(--primary-color);
  font-size: 14px;
  cursor: pointer;
  text-decoration: underline;
  margin-top: 8px;
}
/* 管理员提成比例配置页面样式 */

.admin-commission-config-container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px 24px;
  background: var(--bg-primary, #ffffff);
  min-height: 100vh;
  box-sizing: border-box;
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border-color, #e5e7eb);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary, #1f2937);
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary, #6b7280);
  font-size: 1.1rem;
}

/* 错误信息区域 */
.error-section {
  margin-bottom: 2rem;
}

/* 配置区块 */
.config-section {
  background: var(--bg-secondary, #f9fafb);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.config-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary, #1f2937);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-description {
  color: var(--text-secondary, #6b7280);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

/* 表格样式 */
.commission-rates-table,
.founder-partner-rules {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.commission-rates-table table,
.founder-partner-rules table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.commission-rates-table th,
.commission-rates-table td,
.founder-partner-rules th,
.founder-partner-rules td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.commission-rates-table th,
.founder-partner-rules th {
  background: var(--bg-tertiary, #f3f4f6);
  font-weight: 600;
  color: var(--text-primary, #374151);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.commission-rates-table tr:hover,
.founder-partner-rules tr:hover {
  background: var(--bg-tertiary, #f3f4f6);
}

/* 等级徽章 */
.level-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.level-badge.level-monthly {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: white;
}

.level-badge.level-yearly {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.level-badge.level-lifetime {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
}

.level-badge.level-initialPartner {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
}

.level-badge.level-specialPartner {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

/* 输入框样式 */
.rate-input,
.range-input {
  width: 100px;
  padding: 0.5rem;
  border: 2px solid var(--border-color, #d1d5db);
  border-radius: 6px;
  font-size: 1rem;
  text-align: center;
  transition: all 0.2s ease;
  background: white;
}

.rate-input:focus,
.range-input:focus {
  outline: none;
  border-color: var(--primary-color, #3b82f6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.rate-input:hover,
.range-input:hover {
  border-color: var(--primary-color, #3b82f6);
}

/* 推荐人数范围 */
.referral-range {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.referral-range span {
  color: var(--text-secondary, #6b7280);
  font-weight: 500;
}

.range-input {
  width: 80px;
}

/* 说明文字 */
.rate-description {
  color: var(--text-secondary, #6b7280);
  font-size: 0.9rem;
  font-style: italic;
}

/* 规则说明 */
.rules-description {
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
  padding: 1.5rem;
}

.rules-description h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary, #374151);
  margin-bottom: 0.75rem;
  margin-top: 1.5rem;
}

.rules-description h3:first-child {
  margin-top: 0;
}

.rules-description ul {
  margin: 0;
  padding-left: 1.5rem;
}

.rules-description li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary, #6b7280);
  line-height: 1.6;
}

/* 按钮样式 */
.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: var(--bg-tertiary, #f3f4f6);
  color: var(--text-primary, #374151);
  border: 1px solid var(--border-color, #d1d5db);
}

.btn-secondary:hover {
  background: var(--bg-secondary, #e5e7eb);
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

.btn-danger:hover {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-small {
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 添加规则按钮 */
.add-rule-btn {
  margin-top: 1rem;
}

/* 操作按钮区域 */
.actions-section {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 2px solid var(--border-color, #e5e7eb);
}

.save-btn {
  font-size: 1.1rem;
  padding: 0.75rem 2rem;
  font-weight: 600;
}

.reset-btn {
  font-size: 1.1rem;
  padding: 0.75rem 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .admin-commission-config-container {
    padding: 1rem;
  }
  
  .config-section {
    padding: 1.5rem;
  }
  
  .commission-rates-table,
  .founder-partner-rules {
    font-size: 0.9rem;
  }
  
  .rate-input,
  .range-input {
    width: 80px;
    font-size: 0.9rem;
  }
  
  .referral-range {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }
  
  .referral-range input {
    width: 100%;
  }
  
  .actions-section {
    flex-direction: column;
    align-items: center;
  }
  
  .save-btn,
  .reset-btn {
    width: 100%;
    max-width: 300px;
  }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
  .admin-commission-config-container {
    --bg-primary: #1f2937;
    --bg-secondary: #374151;
    --bg-tertiary: #4b5563;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #4b5563;
  }
  
  .rate-input,
  .range-input {
    background: var(--bg-primary, #374151);
    color: var(--text-primary, #f9fafb);
    border-color: var(--border-color, #6b7280);
  }
  
  .rules-description {
    background: var(--bg-primary, #374151);
  }
}

/* 加载动画 */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
/* 课时编辑页面样式 - 主题风格优化 */
.lesson-edit-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  min-height: calc(100vh - 70px); /* 减去头部高度 */
  background: var(--bg-primary, #f8f9fa);
}

.page-header {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color, #e9ecef);
}

.back-button {
  background: none;
  border: none;
  color: var(--accent-primary, #4a90e2);
  font-size: 16px;
  cursor: pointer;
  padding: 8px 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  border-radius: 6px;
  font-weight: 500;
}

.back-button:hover {
  color: var(--accent-secondary, #3a7bc8);
  background-color: var(--bg-hover, rgba(74, 144, 226, 0.1));
  text-decoration: none;
  transform: translateX(-2px);
}

.edit-container {
  background: var(--bg-card, #ffffff);
  border-radius: 12px;
  box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
  overflow: hidden;
  border: 1px solid var(--border-color, #e9ecef);
  transition: all 0.3s ease;
}

.edit-container:hover {
  box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
  transform: translateY(-2px);
}

.edit-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  border-bottom: 1px solid var(--border-color, #e9ecef);
  background: var(--gradient-card, linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%));
}

.edit-header h1 {
  margin: 0;
  font-size: 24px;
  color: var(--text-primary, #212529);
  font-weight: 600;
}

.edit-actions {
  display: flex;
  gap: 12px;
}

.cancel-btn, .save-btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 14px;
  min-width: 100px;
  box-shadow: var(--shadow-sm, 0 2px 4px rgba(0, 0, 0, 0.1));
}

.cancel-btn {
  background-color: var(--bg-tertiary, #f5f5f5);
  color: var(--text-primary, #212529) !important;
  border: 1px solid var(--border-color, #ddd);
}

.cancel-btn:hover:not(:disabled) {
  background-color: var(--bg-card, #e9e9e9);
  border-color: var(--accent-primary, #4a90e2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm, 0 2px 4px rgba(0, 0, 0, 0.1));
}

.save-btn {
  background: var(--gradient-primary, linear-gradient(135deg, #4a90e2 0%, #3a7bc8 100%));
  color: white !important;
  border-color: var(--accent-primary, #4a90e2);
}

.save-btn:hover:not(:disabled) {
  background: var(--gradient-hover, linear-gradient(135deg, #3a7bc8 0%, #2a6bb8 100%));
  box-shadow: var(--shadow-glow, 0 4px 12px rgba(74, 144, 226, 0.3));
  transform: translateY(-1px);
}

.cancel-btn:disabled, .save-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.edit-content {
  padding: 24px;
}

.lesson-info-section {
  margin-bottom: 24px;
}

.lesson-info-section h2 {
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 18px;
  color: var(--text-secondary, #6c757d);
  border-bottom: 1px solid var(--border-color, #e9ecef);
  padding-bottom: 12px;
  font-weight: 500;
}

.loading-container, .error-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  background: var(--bg-card, #ffffff);
  border-radius: 12px;
  min-height: 200px;
}

.loading-container p {
  margin-top: 16px;
  color: var(--text-secondary, #6c757d);
  font-size: 16px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .lesson-edit-page {
    padding: 16px;
    margin: 0;
  }
  
  .edit-header {
    padding: 20px;
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
  }
  
  .edit-actions {
    justify-content: stretch;
  }
  
  .cancel-btn, .save-btn {
    flex: 1;
  }
}
/* 课程详情页面样式重构 */
.course-detail-page {
  height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  padding: 32px 40px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* -------------------------------------------
   导航面包屑
------------------------------------------- */
.page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 0.5rem;
  /* 微调对齐 */
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  transition: color 0.2s;
}

.breadcrumb-item:hover {
  color: var(--accent-primary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
  cursor: default;
  font-weight: 500;
}

.breadcrumb-separator {
  color: var(--text-tertiary);
  margin: 0 0.25rem;
}

/* -------------------------------------------
   主容器
------------------------------------------- */
.course-detail-container {
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  flex: 1;
  min-height: 0;
  /* 允许子元素在flex容器中正确滚动 */
}

/* -------------------------------------------
   顶部课程信息卡片
------------------------------------------- */
.course-info-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-primary);
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.course-cover-wrapper {
  flex-shrink: 0;
  width: 240px;
  height: 160px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  background-color: var(--bg-tertiary);
}

.course-cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.course-cover-image:hover {
  transform: scale(1.05);
}

.course-info-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 160px;
}

.course-info-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.course-title {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  background: linear-gradient(120deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.course-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: auto;
  /* 让下方内容沉底 */
  padding-bottom: 1.5rem;
  max-width: 900px;
}

.course-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-primary);
  padding-top: 1.5rem;
}

.course-meta {
  display: flex;
  gap: 2rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.meta-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.course-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  flex: 0 0 auto;
  width: auto;
  min-width: 0;
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.edit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  flex: 0 0 auto;
  white-space: nowrap;
  width: auto;
  min-width: 0;
  justify-content: center;
}

.edit-btn:hover {
  background-color: var(--bg-primary);
  transform: translateY(-2px);
}

.join-btn {
  background-color: var(--accent-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb), 0.3);
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
  width: auto;
}

.join-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--accent-primary-rgb), 0.4);
}

.leave-btn {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
  width: auto;
}

.leave-btn:hover {
  background-color: #fee2e2;
  color: #ef4444;
  border-color: #fca5a5;
}

.join-btn:disabled,
.leave-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* -------------------------------------------
   课时列表区域
------------------------------------------- */
.course-lessons-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-select {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}

/* -------------------------------------------
   Grid 布局 & 响应式
------------------------------------------- */
.lessons-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  align-items: start;
}

/* 桌面端：固定为 5 列，更宽更稳重 */
@media (min-width: 1200px) {
  .lessons-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* 卡片样式重构 */
.card-examples {}

.card-examples .card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  padding: 0.75rem;
  /* 高度由内容决定，避免空白 */
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  box-sizing: border-box;
}

.card-examples .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  border-color: var(--accent-primary);
}

.lesson-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  padding-right: 3rem;
  /* Make space for badge */
}

.lesson-number {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--text-tertiary);
  opacity: 0.4;
  font-family: 'Monaco', 'Consolas', monospace;
  line-height: 1;
  flex-shrink: 0;
}

.lesson-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  flex: 1;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.lesson-description {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.3;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.35rem;
  padding-top: 0.4rem;
  border-top: none;
  flex-wrap: wrap;
}

.card-badge-container {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 10;
}

.badge {
  font-size: 0.62rem;
  padding: 0;
  border-radius: 0;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  line-height: 1;
  white-space: nowrap;
  box-shadow: none;
}

.badge-free {
  color: #10B981;
  border: none;
  background: transparent;
}

.badge-vip {
  color: #d97706;
  border: none;
  background: transparent;
}

/* 预留：部分免费标签样式（未来如有需要）*/
.badge-part {
  color: #3b82f6;
  border: none;
  background: transparent;
}

/* 前置圆点指示（更轻量的视觉标签）*/
.badge-free::before,
.badge-vip::before,
.badge-part::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.badge-free::before {
  background-color: #10B981;
}

.badge-vip::before {
  background-color: #d97706;
}

.badge-part::before {
  background-color: #3b82f6;
}

.btn-edit-lesson {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  background: transparent;
  border: 1px solid var(--text-tertiary);
  border-radius: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1;
  white-space: nowrap;
}

.btn-edit-lesson:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

.lesson-stat-line {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  font-size: 0.74rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.lesson-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
}

/* 空状态 */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem;
  background: var(--bg-secondary);
  border-radius: 16px;
  border: 2px dashed var(--border-primary);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

/* -------------------------------------------
   响应式调整
------------------------------------------- */
@media (max-width: 900px) {
  .course-info-card {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .course-cover-wrapper {
    width: 100%;
    height: 140px;
  }
}

@media (max-width: 600px) {
  .course-detail-page {
    padding: 0.75rem;
  }

  .course-info-card {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0.5rem 0.25rem;
    gap: 0.5rem;
  }

  .course-title {
    font-size: 1.25rem;
    background: none;
    -webkit-text-fill-color: unset;
    color: var(--text-primary);
    font-weight: 700;
    text-align: center;
  }

  .course-actions {
    flex-direction: column;
    align-items: stretch;
    /* 拉伸以填满宽度 */
    gap: 0.5rem;
    border-top: none;
    padding-top: 0;
    justify-content: center;
  }

  .course-meta {
    width: 100%;
    justify-content: center;
    /* 确保元数据在移动端均匀分布 */
    margin-bottom: 0.25rem;
    gap: 1rem;
  }

  .join-btn,
  .leave-btn,
  .edit-btn {
    width: auto;
    /* 按钮宽度自适应 */
    justify-content: center;
    padding: 0.6rem 0.8rem;
    /* 增加点击区域 */
    font-size: 0.9rem;
  }

  /* 移动端紧凑：隐藏封面，描述折叠 */
  .course-cover-wrapper {
    display: none;
  }

  .course-desc.compact {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 3.2em;
    padding-bottom: 0.5rem;
    text-align: center;
  }

  .desc-toggle-btn {
    border: none;
    background: transparent;
    color: var(--accent-primary);
    font-size: 0.85rem;
    padding: 0;
    border-radius: 0;
    width: fit-content;
    align-self: center;
    text-decoration: underline;
  }

  .course-info-content {
    align-items: center;
  }

  .course-info-header {
    justify-content: center;
  }
}



/* 加载和错误状态 */
.loading-container,
.error-container {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-secondary);
}/* 模态框样式 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: white;
  border-radius: 8px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid #eee;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.25rem;
  color: #2c3e50;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #7f8c8d;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  transition: background-color 0.2s;
}

.modal-close:hover {
  background-color: #f1f1f1;
}

.modal-body {
  padding: 1.5rem;
}

/* 课时创建表单在模态框中的样式 */
.lesson-create-form {
  width: 100%;
}

.lesson-create-form .form-group {
  margin-bottom: 1.5rem;
}

.lesson-create-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #2c3e50;
}

.lesson-create-form input,
.lesson-create-form select,
.lesson-create-form .form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.lesson-create-form input:focus,
.lesson-create-form select:focus,
.lesson-create-form .form-input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.lesson-create-form .error-message {
  color: #e74c3c;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.lesson-create-form .upload-section {
  margin-top: 0.5rem;
}

.lesson-create-form .progress-container {
  margin: 1.5rem 0;
}

.lesson-create-form .progress-bar {
  height: 8px;
  background-color: #f1f1f1;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.lesson-create-form .progress-fill {
  height: 100%;
  background-color: #3498db;
  transition: width 0.3s ease;
}

.lesson-create-form .progress-text {
  text-align: center;
  font-size: 0.875rem;
  color: #7f8c8d;
}

.lesson-create-form .form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #eee;
}

.lesson-create-form .btn-primary,
.lesson-create-form .btn-secondary {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.lesson-create-form .btn-primary {
  background-color: #3498db;
  color: white;
}

.lesson-create-form .btn-primary:hover:not(:disabled) {
  background-color: #2980b9;
}

.lesson-create-form .btn-primary:disabled {
  background-color: #bdc3c7;
  cursor: not-allowed;
}

.lesson-create-form .btn-secondary {
  background-color: #ecf0f1;
  color: #2c3e50;
}

.lesson-create-form .btn-secondary:hover:not(:disabled) {
  background-color: #dde4e6;
}

.lesson-create-form .btn-secondary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* 页面布局 - 全屏显示 */
.course-create-page {
  width: 100vw !important;
  min-height: 100vh !important;
  margin: 0 !important;
  padding: 70px 0 0 0 !important; /* 为固定头部留出空间 */
  overflow-x: hidden !important;
  overflow-y: auto !important; /* 允许垂直滚动 */
  background-color: #f5f5f5 !important;
  position: relative !important; /* 改为relative定位，允许滚动 */
  left: 0 !important;
  top: 0 !important;
  z-index: 10 !important; /* 确保在正确层级 */
  box-sizing: border-box !important;
}

/* 覆盖StandardLayout的样式限制 */
.app-container:has(.course-create-page) {
  width: 100vw !important;
  max-width: 100vw !important;
  overflow-x: hidden !important;
  position: relative !important;
  margin: 0 !important;
  padding: 0 !important;
  left: 0 !important;
  right: 0 !important;
}

.app-main:has(.course-create-page) {
  width: 100vw !important;
  max-width: 100vw !important;
  padding: 0 !important;
  margin: 0 !important;
  overflow-x: hidden !important;
  height: 100vh !important; /* 使用全屏高度 */
  min-height: 100vh !important; /* 使用全屏高度 */
  position: relative !important;
  left: 0 !important;
  right: 0 !important;
}

.course-create-layout {
  display: flex;
  width: 100vw;
  height: calc(100vh - 70px); /* 减去头部高度 */
  min-height: calc(100vh - 70px); /* 减去头部高度 */
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  position: relative;
  overflow-y: auto; /* 允许垂直滚动 */
}

/* 左侧标签导航 */
.tag-navigation {
  width: 200px;
  background-color: #f8f9fa;
  border-right: 1px solid #e9ecef;
  padding: 20px 15px;
  border-radius: 8px 0 0 8px;
  height: 100%;
  overflow-y: auto;
  box-sizing: border-box;
  flex-shrink: 0; /* 防止收缩 */
}

.tag-navigation h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 15px;
  color: #495057;
}

/* 搜索筛选框 */
.search-filter {
  margin-bottom: 20px;
}

.search-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  outline: none;
}

.search-input:focus {
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.search-input::placeholder {
  color: #999;
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tag-item {
  padding: 10px 15px;
  margin-bottom: 5px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: #6c757d;
  transition: all 0.2s ease;
}

.tag-item:hover {
  background-color: #e9ecef;
  color: #495057;
}

.tag-item.active {
  background-color: #007bff;
  color: white;
  font-weight: 500;
}

/* 右侧内容区域 */
.course-create-content {
  flex: 1;
  padding: 20px 0;
  width: 100%; /* 使用100%宽度确保填满剩余空间 */
  height: 100%;
  overflow-y: auto;
  box-sizing: border-box;
  overflow-x: hidden;
  min-width: 0; /* 允许flex子项收缩 */
}

/* 课程网格样式 */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 300px)); /* 使用auto-fill和固定最大宽度 */
  gap: 16px; /* 减小卡片间距，使布局更紧凑 */
  justify-content: start; /* 左对齐，避免卡片分散 */
  width: 100%;
  margin: 20px 0;
  padding: 0 20px;
  box-sizing: border-box;
  justify-items: stretch; /* 确保卡片拉伸填充网格项 */
  max-width: 100%; /* 确保不超过容器宽度 */
}

/* 页面标题和按钮区域样式 */
.section {
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.section h2 {
  margin-bottom: 20px;
  color: #2c3e50;
}

.form-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 30px;
  padding: 20px;
  box-sizing: border-box;
}

.btn-cancel {
  background-color: #6c757d;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

.btn-cancel:hover {
  background-color: #5a6268;
}

.course-grid .course-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  max-width: 300px; /* 调整最大宽度为300px */
}

.course-grid .course-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 加载状态 */
.loading-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px 20px;
  color: #6c757d;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 错误状态 */
.error-container {
  text-align: center;
  padding: 60px 20px;
  color: #dc3545;
}

.error-container h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.error-container p {
  margin-bottom: 24px;
  font-size: 1rem;
}

.btn-retry {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

.btn-retry:hover {
  background-color: #2980b9;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #6c757d;
}

.empty-state h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.empty-state p {
  font-size: 1rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    max-height: 95vh;
  }
  
  .modal-header {
    padding: 1rem;
  }
  
  .modal-body {
    padding: 1rem;
  }
  
  .lesson-create-form .form-actions {
    flex-direction: column-reverse;
  }
  
  .lesson-create-form .btn-primary,
  .lesson-create-form .btn-secondary {
    width: 100%;
  }
  
  .course-create-page {
    padding-top: 70px; /* 为固定头部留出空间 */
  }
  
  .app-main:has(.course-create-page) {
    height: calc(100vh - 70px); /* 减去头部高度 */
    min-height: calc(100vh - 70px); /* 减去头部高度 */
  }
  
  .course-create-layout {
    flex-direction: column;
    width: 100vw;
    height: calc(100vh - 70px); /* 减去头部高度 */
    min-height: calc(100vh - 70px); /* 减去头部高度 */
  }
  
  .tag-navigation {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid #e9ecef;
    border-radius: 8px 8px 0 0;
    padding: 15px;
  }
  
  .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  
  .tag-item {
    flex: 0 0 auto;
    margin-bottom: 0;
    padding: 8px 12px;
  }
  
  .course-create-content {
    width: 100%; /* 使用100%而不是100vw */
    height: calc(100vh - 70px - var(--tag-nav-height, auto)); /* 减去头部高度和标签导航高度 */
    padding: 20px 0;
    box-sizing: border-box;
  }
  
  .course-grid {
    padding: 0 10px;
  }
  
  .section {
    padding: 0 10px;
  }
  
  .form-actions {
    padding: 20px 10px;
  }
}/* 课程创建页面样式 */

.course-create-page {
  width: 100vw !important;
  max-width: 100vw !important;
  margin: 0 !important;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  box-sizing: border-box !important;
  background: var(--bg-primary);
  min-height: calc(100vh - var(--header-height));
}

/* 对齐首页容器布局 */
.dashboard-container {
  max-width: var(--bp-xl, 1200px);
  margin: 0;
  padding: var(--spacing-md, 16px) var(--spacing-lg, 24px);
  display: grid;
  gap: var(--spacing-lg, 24px);
}

/* 创建课程页面专用：清空容器外边距，避免左右留白 */
.course-create-page .dashboard-container {
  margin: 0 !important;
  padding-top: 0 !important;
}

.page-header {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--text-accent);
  padding: 60px 40px;
  text-align: center;
  margin-bottom: 0;
}

.page-header h1 {
  color: var(--text-accent);
  font-size: 2.8rem;
  margin-bottom: 16px;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-header p {
  color: rgba(var(--text-accent-rgb, 255, 255, 255), 0.9);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 创建流程指示器 */
.creation-flow {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  background: var(--bg-tertiary);
  border-radius: 10px;
  padding: 20px;
}

.flow-step {
  display: flex;
  align-items: center;
  flex: 1;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--border-color, #dee2e6);
  transform: translateY(-50%);
}

.step-number {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--border-color, #dee2e6);
  color: var(--text-muted, #6c757d);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-right: 10px;
}

.step-number.active {
  background: var(--accent-primary);
  color: var(--text-accent);
}

.step-info h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted, #6c757d);
}

.step-info.active h3 {
  color: var(--accent-primary);
}

.step-info p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-disabled, #adb5bd);
}

/* 统一卡片风格（玻璃拟态基类 + 分区卡） */
.glass-card-base {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-md, 0 6px 24px rgba(0,0,0,0.08));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card-base:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg, 0 10px 40px rgba(0,0,0,0.12));
}

.section-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-sm, 0 4px 20px rgba(0,0,0,0.08));
}

.card-header {
  padding: var(--spacing-md, 20px) var(--spacing-lg, 24px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h2 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--text-primary);
  font-weight: 700;
}

.section-subtitle {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.card-body {
  padding: var(--spacing-lg, 24px);
}

/* 表单区域样式 */
.form-section {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: var(--spacing-lg, 24px);
  margin: 0 0 var(--spacing-lg, 24px) 0;
  box-shadow: var(--shadow-sm, 0 4px 20px rgba(0,0,0,0.08));
  border: 1px solid var(--border-color);
}

.form-section:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border-color, #f8f9fa);
}

.section-header h2 {
  color: var(--text-primary);
  margin: 0;
  font-size: 1.6rem;
  font-weight: 600;
  position: relative;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -22px;
  left: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  border-radius: 2px;
}

.section-header .section-actions {
  display: flex;
  gap: 12px;
}

/* 课程表单样式 */
.course-form {
  margin-bottom: 20px;
}

/* 课程标题和描述容器 */
.title-description-container {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.title-section {
  flex: 1;
}

.description-section {
  flex: 1;
}

/* 表单样式 */
.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  margin-bottom: 12px;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--border-color, #e9ecef);
  border-radius: 10px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.1);
  transform: translateY(-1px);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-muted, #a0a9b8);
  font-style: italic;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* 难度选择器 */
.difficulty-selector {
  display: flex;
  align-items: center;
  gap: 15px;
}

.difficulty-slider {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: #e9ecef;
  outline: none;
  -webkit-appearance: none;
}

.difficulty-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #007bff;
  cursor: pointer;
}

.difficulty-value {
  font-weight: bold;
  color: #007bff;
  min-width: 20px;
  text-align: center;
}

/* 课时管理面板 */
.lesson-panel {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color, #e9ecef);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border-color, #f8f9fa);
}

.panel-header h3 {
  color: var(--text-primary);
  margin: 0;
  font-size: 1.3rem;
}

/* 课时列表 */
.lessons-list {
  max-height: 400px;
  overflow-y: auto;
}

.lesson-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  margin-bottom: 10px;
  background: var(--bg-secondary);
  border-radius: 8px;
  border-left: 4px solid var(--accent-primary);
  transition: all 0.3s ease;
}

.lesson-item:hover {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.lesson-info {
  display: flex;
  align-items: center;
  flex: 1;
}

.lesson-order {
  width: 30px;
  height: 30px;
  background: var(--accent-primary);
  color: var(--text-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-right: 15px;
}

.lesson-details h4 {
  margin: 0 0 5px 0;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.lesson-details p {
  margin: 0 0 8px 0;
  color: var(--text-muted, #6c757d);
  font-size: 0.9rem;
}

.lesson-meta {
  display: flex;
  gap: 15px;
}

.lesson-type, .lesson-duration {
  background: var(--bg-tertiary);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-muted, #495057);
}

.free-badge {
  background: var(--success-color, #28a745);
  color: var(--text-accent);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 8px;
}

.lesson-actions {
  display: flex;
  gap: 8px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: #6c757d;
}

.empty-state p {
  margin: 0;
  font-size: 1.1rem;
}

/* 按钮样式 */
.btn-primary, .btn-secondary, .btn-danger, .btn-edit, .btn-clear {
  padding: 14px 28px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 120px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--text-accent);
  box-shadow: 0 4px 15px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-tertiary) 100%);
  color: var(--text-accent);
  box-shadow: 0 4px 15px rgba(var(--accent-secondary-rgb, 245, 87, 108), 0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--accent-secondary-rgb, 245, 87, 108), 0.4);
}

/* 标签选择器样式 */
.tag-selector {
  margin-bottom: 20px;
}

.tag-selector-container {
  display: flex;
  gap: 20px;
  width: 100%;
}

.tag-selector-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.tag-selector-right {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tag-selector label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-primary);
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 4px 8px;
  border-radius: 16px;
  font-size: 12px;
  gap: 4px;
}

.tag-remove {
  background: none;
  border: none;
  color: var(--text-muted, #6c757d);
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.tag-remove:hover {
  background-color: var(--danger-color, #dc3545);
  color: var(--text-accent);
}

.tag-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color, #dee2e6);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}

.tag-btn:hover:not(:disabled) {
  background-color: var(--bg-tertiary);
  border-color: var(--border-hover, #adb5bd);
}

.tag-btn.selected {
  background-color: var(--accent-primary);
  color: var(--text-accent);
  border-color: var(--accent-primary);
}

.tag-btn:disabled {
  background-color: var(--bg-secondary);
  color: var(--text-disabled, #adb5bd);
  cursor: not-allowed;
}

.no-tags-hint {
  color: var(--text-muted, #6c757d);
  font-style: italic;
}

.custom-tag-input .input-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.custom-tag-input .form-input {
  flex: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .tag-selector-container {
    flex-direction: column;
    gap: 15px;
  }
  
  .tag-selector-left,
  .tag-selector-right {
    flex: none;
  }
  
  .title-description-container {
    flex-direction: column;
    gap: 15px;
  }
}

.btn-danger {
  background: var(--danger-color, #dc3545);
  color: var(--text-accent);
}

.btn-danger:hover {
  background: var(--danger-hover, #c82333);
}

.btn-edit {
  background: var(--warning-color, #ffc107);
  color: var(--text-accent);
}

.btn-edit:hover {
  background: var(--warning-hover, #e0a800);
}

.btn-clear {
  background: transparent;
  color: var(--text-muted, #6c757d);
  border: 1px solid var(--text-muted, #6c757d);
}

.btn-clear:hover {
  background: var(--text-muted, #6c757d);
  color: var(--text-accent);
}

/* 模态框样式 */
.lesson-form-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-content h3 {
  margin: 0 0 20px 0;
  color: var(--text-primary);
}

/* 课程封面上传和预览同行布局 */
.upload-preview-row {
  display: flex;
  gap: var(--spacing-xl, 30px);
  margin: var(--spacing-md, 20px) 0;
}

.upload-section {
  flex: 1;
  min-width: 0;
}

.preview-section {
  flex: 1;
  min-width: 0;
}

/* 图片上传容器 */
.image-upload-container {
  position: relative;
  margin-top: 20px;
}

.image-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 240px;
  border: 3px dashed var(--border-color, #d1d9e6);
  border-radius: 16px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  cursor: pointer;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.image-upload-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  transition: left 0.4s ease;
  opacity: 0.05;
}

.image-upload-placeholder:hover {
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-secondary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.1);
}

.image-upload-placeholder:hover::before {
  left: 0;
}

.upload-icon {
  font-size: 56px;
  margin-bottom: 20px;
  color: var(--accent-primary);
  transition: transform 0.3s ease;
}

.image-upload-placeholder:hover .upload-icon {
  transform: scale(1.1);
}

.image-upload-placeholder p {
  margin: 4px 0;
  color: var(--text-primary);
  font-weight: 500;
}

.upload-hint {
  font-size: 0.9rem;
  color: var(--text-muted, #7f8c8d);
  font-style: italic;
}

.image-preview {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.image-preview:hover {
  transform: translateY(-2px);
}

.image-preview img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 16px;
}

.image-actions {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  justify-content: center;
}

.uploading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.uploading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e9ecef;
  border-top: 4px solid #007bff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 课程预览容器 */
.course-preview-container {
  margin-top: 16px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.course-preview-card {
  pointer-events: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 数据导入区域样式 */
.import-section {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid var(--border-color, #e9ecef);
}

.import-section h4 {
  margin: 0 0 10px 0;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.import-description {
  color: var(--text-muted, #6c757d);
  font-size: 0.9rem;
  margin: 0 0 15px 0;
  line-height: 1.4;
}

.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* 课程选择界面样式 */
.course-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.course-item {
  border: 1px solid var(--border-color, #ddd);
  border-radius: 8px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: var(--bg-card);
}

.course-item:hover {
  border-color: var(--success-color, #4CAF50);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.course-item h3 {
  margin-top: 0;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.course-item p {
  margin-bottom: 15px;
  color: var(--text-muted, #666);
  font-size: 14px;
}

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.course-tags .tag {
  background-color: var(--bg-tertiary);
  color: var(--text-muted, #666);
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 12px;
}

/* 课程类型选择器样式 */
.type-selector {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.type-option {
  position: relative;
  flex: 1;
  margin: 0;
  cursor: pointer;
}

.type-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.type-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 12px;
  border: 2px solid var(--border-color, #e9ecef);
  border-radius: 12px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  transition: all 0.3s ease;
  text-align: center;
  min-height: 90px;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.type-label::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  transition: left 0.3s ease;
  opacity: 0.1;
}

.type-option input[type="radio"]:checked + .type-label {
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-secondary) 100%);
  box-shadow: 0 4px 15px rgba(var(--accent-primary-rgb, 102, 126, 234), 0.2);
  transform: translateY(-2px);
}

.type-option input[type="radio"]:checked + .type-label::before {
  left: 0;
}

.type-label:hover {
  border-color: var(--accent-hover, #a8b1ff);
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-secondary) 100%);
  transform: translateY(-1px);
}

.type-icon {
  font-size: 28px;
  margin-bottom: 8px;
  display: block;
  transition: transform 0.3s ease;
}

.type-option input[type="radio"]:checked + .type-label .type-icon {
  transform: scale(1.1);
}

.type-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.type-option input[type="radio"]:checked + .type-label .type-text {
  color: var(--accent-primary);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .course-create-page {
    padding: 10px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .upload-preview-row {
    flex-direction: column;
    gap: 20px;
  }
}
  
  .lesson-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  
  .lesson-actions {
    align-self: flex-end;
  }
  
  .creation-flow {
    flex-direction: column;
    gap: 15px;
  }
  
  .flow-step:not(:last-child)::after {
    display: none;
  }
  
  .course-list {
    grid-template-columns: 1fr;
  }
  
  .type-selector {
    flex-direction: row;
    gap: 8px;
  }
  
  .type-label {
    flex-direction: row;
    justify-content: flex-start;
    min-height: auto;
    padding: 8px 6px;
  }
  
  .type-icon {
    font-size: 18px;
    margin-bottom: 0;
    margin-right: 6px;
  }
  
  .type-text {
    font-size: 12px;
  }
}
/* 管理员会员管理页面样式 */
.admin-page-container,
.admin-membership-container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px 24px;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 页面头部 */
.page-header {
  margin-bottom: 30px;
}

.page-header h1 {
  font-size: 2.5rem;
  color: var(--text-primary, #333);
  margin-bottom: 10px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary, #666);
}

/* 错误消息 */
.error-message {
  text-align: center;
  padding: 60px 20px;
  background: var(--error-bg, #fff3f3);
  border: 1px solid var(--error-border, #ffcdd2);
  border-radius: 10px;
  margin-top: 50px;
}

.error-message h2 {
  color: var(--error-text, var(--color-error, #d32f2f));
  margin-bottom: 15px;
}

.error-message p {
  color: var(--text-secondary, #666);
  font-size: 1.1rem;
}

/* 统计数据区域 */
.stats-section {
  margin-bottom: 0; /* 将margin-bottom调整为0 */
}

.stats-section h2 {
  font-size: 1.8rem;
  color: var(--text-primary, #333);
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border-color, #e0e0e0);
  padding-bottom: 10px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.05));
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 5px 15px rgba(0, 0, 0, 0.1));
}

.stat-value {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--accent-primary, #667eea);
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary, #666);
  font-weight: 500;
}

/* 搜索和过滤区域 */
.filters-section {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-input {
  padding: 10px 15px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 25px;
  font-size: 1rem;
  width: 300px;
  outline: none;
  transition: border-color 0.3s ease;
}

.search-input:focus {
  border-color: var(--accent-primary, #667eea);
}

.search-btn {
  padding: 10px 20px;
  background: var(--accent-primary, #667eea);
  color: var(--text-accent, #ffffff);
  border: none;
  border-radius: 25px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s ease;
}

.search-btn:hover {
  background: var(--accent-primary-light, #5a6fd8);
}

.filter-controls {
  display: flex;
  gap: 15px;
  align-items: center;
}

.filter-select {
  padding: 10px 15px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 25px;
  font-size: 1rem;
  background: var(--bg-card, #ffffff);
  outline: none;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.filter-select:focus {
  border-color: var(--accent-primary, #667eea);
}

/* 会员列表区域 */
.members-section {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  overflow: hidden;
}

.members-section h2 {
  font-size: 1.8rem;
  color: var(--text-primary, #333);
  margin: 0;
  padding: 20px;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
  background: var(--bg-tertiary, #f8f9fa);
}

.members-table-container {
  overflow-x: auto;
}

.members-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1000px;
  color: var(--text-primary, #333);
}

.members-table th,
.members-table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.members-table th {
  background: var(--bg-tertiary, #f8f9fa);
  font-weight: 600;
  color: var(--text-primary, #333);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.members-table tbody tr:hover {
  background: var(--bg-secondary, #f8f9fa);
}

/* 角色徽章 */
.role-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.role-admin {
  background: var(--error-bg, #ffebee);
  color: var(--error-color, var(--color-error, #d32f2f));
}

.role-teacher {
  background: var(--success-light, #e8f5e8);
  color: var(--color-success, #388e3c);
}

.role-user {
  background: var(--accent-secondary-opacity, #e3f2fd);
  color: var(--accent-secondary, #1976d2);
}

/* 等级选择器 */
.level-select {
  padding: 5px 10px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 4px;
  font-size: 0.9rem;
  background: var(--bg-card, #ffffff);
  color: var(--text-primary, #333);
  outline: none;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.level-select:focus {
  border-color: var(--accent-primary, #667eea);
}

/* 选项在深色/浅色主题下的可读性 */
.level-select option {
  color: var(--text-primary, #333);
  background: var(--bg-card, #ffffff);
}

/* 切换开关 */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary, #ccc);
  transition: .4s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: var(--text-accent, #ffffff);
  transition: .4s;
  border-radius: 50%;
}

input:checked + .toggle-slider {
  background-color: var(--accent-primary, #667eea);
}

input:checked + .toggle-slider:before {
  transform: translateX(26px);
}

/* 按钮样式 */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.8rem;
  color: var(--text-primary) !important;
}

.btn-primary {
  background: var(--accent-primary, #667eea);
  color: var(--text-accent, #ffffff);
}

.btn-primary:hover {
  background: var(--accent-primary-dark, #5a6fd8);
}

.btn-secondary {
  background: var(--bg-secondary, #f0f0f0);
  color: var(--text-primary, #333) !important;
}

.btn-secondary:hover {
  background: var(--bg-tertiary, #e0e0e0);
}

/* 删除按钮（危险）在所有主题下保持高对比 */
.btn-danger {
  background: var(--color-error, #d32f2f);
  color: #ffffff !important;
  border: 1px solid var(--color-error, #d32f2f);
}

.btn-danger:hover {
  background: #c62828;
}

/* 行内操作按钮在白色主题与明亮主题下确保文字可读 */
.row-actions .btn {
  color: var(--text-primary, #333) !important;
}
.row-actions .btn-primary,
.row-actions .btn-danger {
  color: #ffffff !important;
}

/* 主题覆盖：明亮/白色主题下强制提高对比度 */
body.light .row-actions .btn {
  color: var(--text-primary, #333) !important;
  background: var(--bg-secondary, #f0f0f0) !important;
  border: 1px solid var(--border-color, #ddd) !important;
}
body.light .row-actions .btn-secondary {
  color: var(--text-primary, #333) !important;
  background: var(--bg-tertiary, #e0e0e0) !important;
}
body.light .row-actions .btn-primary {
  background: var(--accent-primary, #667eea) !important;
  color: #ffffff !important;
}
body.light .row-actions .btn-danger {
  background: var(--color-error, #d32f2f) !important;
  color: #ffffff !important;
}

/* 主题覆盖：星云白/极光白 */
body.nebula-light .row-actions .btn,
body.aurora-light .row-actions .btn {
  color: var(--text-primary, #333) !important;
  background: var(--bg-secondary, #f0f0f0) !important;
  border: 1px solid var(--border-color, #ddd) !important;
}
body.nebula-light .row-actions .btn-secondary,
body.aurora-light .row-actions .btn-secondary {
  color: var(--text-primary, #333) !important;
  background: var(--bg-tertiary, #e0e0e0) !important;
}
body.nebula-light .row-actions .btn-primary,
body.aurora-light .row-actions .btn-primary {
  background: var(--accent-primary) !important;
  color: #ffffff !important;
}
body.nebula-light .row-actions .btn-danger,
body.aurora-light .row-actions .btn-danger {
  background: var(--color-error) !important;
  color: #ffffff !important;
}

/* 分页控件 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  gap: 10px;
}

.page-btn {
  padding: 8px 16px;
  border: 1px solid var(--border-color, #ddd);
  background: var(--bg-card, #ffffff);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.page-btn:hover:not(:disabled) {
  background: var(--bg-secondary, #f0f0f0);
}

.page-btn.active {
  background: var(--accent-primary, #667eea);
  color: var(--text-accent, #ffffff);
  border-color: var(--accent-primary, #667eea);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .admin-membership-container {
    padding: 15px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
  }
  
  .filters-section {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-form {
    width: 100%;
  }
  
  .search-input {
    width: 100%;
  }
  
  .filter-controls {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .admin-membership-container {
    padding: 10px;
  }
  
  .page-header h1 {
    font-size: 2rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .stat-card {
    padding: 15px;
  }
  
  .stat-value {
    font-size: 2rem;
  }
  
  .members-table th,
  .members-table td {
    padding: 10px 8px;
    font-size: 0.8rem;
  }
  
  .pagination {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-controls {
    flex-direction: column;
    gap: 10px;
  }
  
  .filter-select {
    width: 100%;
  }
}

/* 暗色主题适配 */
.dark .members-section { background: var(--bg-card); border: 1px solid var(--border-color); }
.dark .members-table { background: var(--bg-secondary); color: var(--text-primary); }
.dark .members-table th { background: var(--bg-tertiary); color: var(--text-primary); border-bottom: 1px solid var(--border-color); }
.dark .page-btn.active { box-shadow: var(--shadow-sm); }

/* 赛博朋克夜间主题适配 */
.cyberpunk-dark .members-section { background: var(--bg-card); border: 1px solid var(--border-color); }
.cyberpunk-dark .members-table { background: var(--bg-secondary); color: var(--text-primary); }
.cyberpunk-dark .members-table th { background: var(--bg-tertiary); color: var(--text-primary); border-bottom: 1px solid var(--border-color); }
.cyberpunk-dark .page-btn.active { box-shadow: var(--shadow-glow); }
/* 会员中心 - 统一风格设计 (Unified Style) */

/* 页面容器 - 匹配既学亦赚页面背景 */
.membership-container {
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  padding-bottom: 4rem;
  padding-top: calc(var(--header-height) + 2rem);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 页面主体内容限制宽度 */
.membership-hero,
.plans-section,
.disclaimer-section,
.benefits-section {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

/* Hero Section - 匹配 PromoterLandingPage 的 Hero 样式 */
.membership-hero {
  text-align: center;
  margin-bottom: 4rem;
  padding-top: 2rem;
  position: relative;
}

/* 统一的背景光效 */
.membership-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(circle at center, rgba(var(--accent-primary-rgb, 59, 130, 246), 0.08) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

.hero-left h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: var(--text-primary);
}

.hero-left p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* 重新设计的会员状态卡片 */
.hero-membership-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  margin-top: 3rem;
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(10px);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-membership-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 左侧视觉区域 */
.membership-card-visual {
  width: 35%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: white;
  overflow: hidden;
}

.membership-card-visual::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.2) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 20%);
  z-index: 1;
}

.visual-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 1;
}

.visual-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

/* 等级主题色 */
.visual-free {
  background: linear-gradient(135deg, #64748b, #475569);
}

.visual-monthly {
  background: linear-gradient(135deg, var(--accent-primary), #3b82f6);
}

.visual-yearly {
  background: linear-gradient(135deg, var(--accent-secondary), #8b5cf6);
}

.visual-lifetime {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
}

.visual-initial {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

.visual-icon {
  font-size: 3.5rem;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
  animation: float 6s ease-in-out infinite;
}

.visual-level-name {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.visual-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.3);
}

.status-dot.expired {
  background-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.3);
}

.status-dot.normal {
  background-color: #94a3b8;
  box-shadow: 0 0 0 2px rgba(148, 163, 184, 0.3);
}

/* 右侧信息区域 */
.membership-card-info {
  flex: 1;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.info-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.expiration-tag {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.info-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: auto;
}

.info-detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.info-detail-item .detail-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.detail-text-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.info-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-end;
}

.action-btn-upgrade {
  background: var(--accent-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.action-btn-upgrade:hover {
  background: var(--accent-primary-hover, #2563eb);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-10px);
  }

  100% {
    transform: translateY(0px);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .hero-membership-card {
    flex-direction: column;
    max-width: 400px;
  }

  .membership-card-visual {
    width: 100%;
    padding: 2.5rem 2rem;
  }

  .info-details-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .info-actions {
    justify-content: stretch;
  }

  .action-btn-upgrade {
    width: 100%;
  }
}

/* 当前等级 - 徽章重设计 */
.level-emblem {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.level-emblem .emblem-icon {
  font-size: 1.25rem;
}

.level-emblem .emblem-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-inverse);
}

.level-emblem--monthly {
  background: linear-gradient(135deg, var(--accent-primary), #60a5fa);
  border-color: rgba(59, 130, 246, 0.3);
}

.level-emblem--yearly {
  background: linear-gradient(135deg, var(--accent-secondary), #a78bfa);
  border-color: rgba(139, 92, 246, 0.3);
}

.level-emblem--lifetime {
  background: linear-gradient(135deg, #6d28d9, #8b5cf6);
  border-color: rgba(109, 40, 217, 0.3);
}

.level-emblem--initial {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-color: rgba(245, 158, 11, 0.35);
}

.level-emblem--free {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
  border-color: rgba(255, 255, 255, 0.25);
}

.level-emblem--free .emblem-title {
  color: var(--text-primary);
}

/* Plans Section */
.plans-section h2,
.benefits-section h2 {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

/* Plans Grid - 匹配 Commission Tiers 样式 */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.plan-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

/* 当前方案样式 */
.plan-card-current {
  border: 2px solid var(--accent-primary);
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.02);
}

/* 推荐/无限期方案样式 */
.plan-card-featured {
  border: 2px solid var(--accent-secondary);
}

/* 创始合伙人/Premium方案样式 */
.plan-card-premium {
  border: 2px solid #f59e0b;
  /* Warning/Gold color */
}

/* Plan Header */
.plan-card-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.plan-card-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.current-badge {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.2rem 0.6rem;
  background: var(--accent-primary);
  color: white;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.plan-price-area {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.price-zero {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.price-wrapper {
  display: flex;
  align-items: baseline;
  justify-content: center;
  color: var(--text-primary);
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 600;
  margin-right: 0.25rem;
}

.price-number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

/* 限量徽章 - 类似于 Promoter 页面 */
.scarcity-badge {
  display: inline-block;
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Plan Body */
.plan-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.plan-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.row-label {
  color: var(--text-secondary);
}

.row-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Buttons */
.plan-card-actions {
  margin-top: auto;
}

.btn-buy,
.btn-highlight,
.btn-current {
  width: 100%;
  padding: 0.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  border: none;
}

.btn-buy {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-buy:hover {
  box-shadow: var(--shadow-md), var(--glow-primary);
  transform: translateY(-2px);
}

.btn-highlight {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-highlight:hover {
  box-shadow: var(--shadow-md), 0 0 14px rgba(245, 158, 11, 0.45);
  transform: translateY(-2px);
}

.btn-current {
  background: var(--bg-secondary);
  color: var(--text-disabled);
  cursor: not-allowed;
  border: 1px solid var(--border-color);
}

/* Benefits Grid - 匹配 Benefit Cards */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.benefit-item {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.benefit-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.benefit-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.benefit-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Disclaimer Section */
.disclaimer-section {
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.05);
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.disclaimer-item {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.disclaimer-item:last-child {
  margin-bottom: 0;
}

/* Action Notice */
.action-notice {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 1rem 2rem;
  border-radius: 8px;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translate(-50%, -40%);
  }

  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .membership-container {
    padding-top: calc(var(--header-height) + 1rem);
  }

  .hero-left h1 {
    font-size: 2rem;
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .plan-card-main {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .plan-price-area {
    align-items: flex-end;
  }

  .hero-details {
    flex-direction: column;
    gap: 1.5rem;
  }
}/* 个人中心页面 - 重构后的基础布局样式文件 */

/* ===== CSS变量定义 ===== */
:root {
  /* 颜色变量 - 科技感玻璃风格 */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-disabled: rgba(241, 245, 249, 0.6);
  --bg-hover: rgba(248, 250, 252, 0.9);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --text-disabled: #94a3b8;
  --border-color: rgba(226, 232, 240, 0.5);
  --border-light: rgba(241, 245, 249, 0.6);
  --border-primary: rgba(226, 232, 240, 0.5);
  --accent-primary: #3b82f6;
  --accent-primary-light: #60a5fa;
  --accent-primary-dark: #2563eb;
  --accent-secondary: #8b5cf6;
  --accent-secondary-light: #a78bfa;
  --accent-secondary-dark: #7c3aed;
  --accent-hover: #2563eb;
  --accent-primary-opacity: rgba(59, 130, 246, 0.15);
  --accent-secondary-opacity: rgba(139, 92, 246, 0.15);
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;

  /* 科技感玻璃渐变变量 */
  --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-secondary: linear-gradient(135deg, #8b5cf6, #ec4899);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.8));
  --gradient-hover: linear-gradient(135deg, #2563eb, #7c3aed);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
  --gradient-glass-hover: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.2));

  /* 科技感阴影变量 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.2);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glass-hover: 0 12px 40px rgba(0, 0, 0, 0.15);

  /* 科幻感光效变量 */
  --glow-primary: 0 0 20px rgba(59, 130, 246, 0.4), 0 0 40px rgba(59, 130, 246, 0.2);
  --glow-secondary: 0 0 20px rgba(139, 92, 246, 0.4), 0 0 40px rgba(139, 92, 246, 0.2);
  --glow-accent: 0 0 15px rgba(16, 185, 129, 0.4), 0 0 30px rgba(16, 185, 129, 0.2);
  --glow-error: 0 0 15px rgba(239, 68, 68, 0.4), 0 0 30px rgba(239, 68, 68, 0.2);
  --glow-warning: 0 0 15px rgba(245, 158, 11, 0.4), 0 0 30px rgba(245, 158, 11, 0.2);
  --glow-neon: 0 0 10px rgba(0, 255, 255, 0.6), 0 0 20px rgba(0, 255, 255, 0.3), 0 0 30px rgba(0, 255, 255, 0.1);
  --glow-cyber: 0 0 8px rgba(255, 0, 255, 0.6), 0 0 16px rgba(255, 0, 255, 0.3), inset 0 0 8px rgba(255, 0, 255, 0.1);

  /* 玻璃拟态渐变 */
  --gradient-glass: linear-gradient(135deg,
      rgba(255, 255, 255, 0.1) 0%,
      rgba(255, 255, 255, 0.05) 50%,
      rgba(255, 255, 255, 0.08) 100%);
  --gradient-glass-hover: linear-gradient(135deg,
      rgba(255, 255, 255, 0.15) 0%,
      rgba(255, 255, 255, 0.08) 50%,
      rgba(255, 255, 255, 0.12) 100%);

  /* 玻璃拟态阴影 */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glass-hover: 0 12px 40px rgba(0, 0, 0, 0.15);

  /* 尺寸变量 */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 50%;

  /* 间距变量 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* 断点变量 */
  --breakpoint-lg: 1200px;
  --breakpoint-md: 768px;
  --breakpoint-sm: 480px;

  /* 过渡变量 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-cubic: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index变量 */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* 导航变量 */
  --nav-width-desktop: 280px;
  --nav-item-padding-desktop: 16px 24px;
  --nav-item-padding-tablet: 12px 16px;
  --nav-item-padding-mobile: 10px 12px;
  --nav-item-min-width-tablet: 90px;
  --nav-item-min-width-mobile: 80px;
  --nav-item-active-min-width-tablet: 90px;
  --nav-item-active-min-width-mobile: 80px;
  --nav-item-active-padding-tablet: 12px 16px;
  --nav-item-active-padding-mobile: 10px 12px;
}

/* ===== 科幻感动画定义 ===== */
@keyframes cyber-glow {
  0% {
    box-shadow: var(--shadow-glass-hover), var(--glow-primary);
  }

  50% {
    box-shadow: var(--shadow-glass-hover), var(--glow-primary), var(--glow-secondary);
  }

  100% {
    box-shadow: var(--shadow-glass-hover), var(--glow-primary);
  }
}

@keyframes neon-border {
  0% {
    border-image: linear-gradient(45deg,
        var(--accent-primary-opacity),
        var(--accent-secondary-opacity),
        var(--color-success)) 1;
  }

  25% {
    border-image: linear-gradient(45deg,
        var(--accent-secondary-opacity),
        var(--color-success),
        var(--accent-primary-opacity)) 1;
  }

  50% {
    border-image: linear-gradient(45deg,
        var(--color-success),
        var(--accent-primary-opacity),
        var(--accent-secondary-opacity)) 1;
  }

  75% {
    border-image: linear-gradient(45deg,
        var(--accent-primary-opacity),
        var(--accent-secondary-opacity),
        var(--color-success)) 1;
  }

  100% {
    border-image: linear-gradient(45deg,
        var(--accent-primary-opacity),
        var(--accent-secondary-opacity),
        var(--color-success)) 1;
  }
}

@keyframes active-pulse {

  0%,
  100% {
    transform: translateX(8px) translateY(-3px) scale(1);
    box-shadow: var(--shadow-glass),
      inset var(--glow-primary-weak),
      var(--glow-primary);
  }

  50% {
    transform: translateX(8px) translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-glass),
      inset var(--glow-primary),
      var(--glow-primary-strong);
  }
}

/* ===== 课程列表样式 ===== */
.courses-list-container {
  margin-top: var(--spacing-md);
}

.courses-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.course-list-item {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.course-list-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

.course-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.course-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.course-progress-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius-pill);
}

.progress-percentage {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--accent-primary);
  min-width: 36px;
  text-align: right;
}

.mini-progress-bar {
  width: 40px;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-pill);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.mini-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-pill);
  transition: width 0.5s ease;
  box-shadow: 0 0 4px rgba(59, 130, 246, 0.3);
}

.course-details {
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.course-stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  flex: 1;
  margin: 0 var(--spacing-xs);
}

.stat-icon {
  font-size: var(--font-size-lg);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.stat-value {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
}

.progress-section {
  margin-top: var(--spacing-md);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-pill);
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 确保进度条填充样式优先级高于其他样式 */
.course-list-item .progress-fill {
  height: 100% !important;
  background: var(--gradient-primary) !important;
  border-radius: var(--border-radius-pill) !important;
  transition: width 0.5s ease !important;
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.3) !important;
  position: relative !important;
  display: block !important;
}

/* 确保迷你进度条填充样式优先级高于其他样式 */
.course-list-item .mini-progress-fill {
  height: 100% !important;
  background: var(--gradient-primary) !important;
  border-radius: var(--border-radius-pill) !important;
  transition: width 0.5s ease !important;
  box-shadow: 0 0 4px rgba(59, 130, 246, 0.3) !important;
  position: relative !important;
  display: block !important;
}

.no-courses-message {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-muted);
  font-size: var(--font-size-md);
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
}



@keyframes active-border-glow {
  0% {
    opacity: 0.8;
    filter: brightness(1);
  }

  100% {
    opacity: 1;
    filter: brightness(1.2);
  }
}

@keyframes holographic-shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

@keyframes particle-float {

  0%,
  100% {
    transform: translateY(0px);
    opacity: 0.7;
  }

  50% {
    transform: translateY(-10px);
    opacity: 1;
  }
}



/* ===== 通用CSS变量系统 ===== */
:root {
  /* 基础颜色系统 - 适用于所有主题 */
  --color-primary: #4dabf7;
  --color-primary-light: #74c0fc;
  --color-primary-dark: #339af0;
  --color-secondary: #9775fa;
  --color-secondary-light: #b197fc;
  --color-secondary-dark: #7950f2;
  --color-accent: #10b981;
  --color-accent-light: #34d399;
  --color-accent-dark: #059669;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-success: #10b981;

  /* 通用背景色 - 使用rgba实现透明度 */
  --bg-primary: rgba(255, 255, 255, 0.95);
  --bg-secondary: rgba(245, 245, 245, 0.9);
  --bg-tertiary: rgba(235, 235, 235, 0.85);
  --bg-card: rgba(255, 255, 255, 0.98);
  --bg-disabled: rgba(240, 240, 240, 0.7);
  --bg-hover: rgba(240, 240, 240, 0.95);

  /* 通用文字色 */
  --text-primary: #1a1a1a;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-inverse: #ffffff;
  --text-disabled: #a0aec0;

  /* 通用边框色 */
  --border-color: rgba(203, 213, 224, 0.5);
  --border-light: rgba(226, 232, 240, 0.3);
  --border-primary: rgba(66, 153, 225, 0.3);

  /* 通用渐变 */
  --gradient-primary: linear-gradient(135deg, #4dabf7, #9775fa);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(245, 245, 245, 0.05));
  --gradient-hover: linear-gradient(135deg, #339af0, #7950f2);

  /* 通用阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(77, 171, 247, 0.3);

  /* 通用光效 */
  --glow-primary: 0 0 20px rgba(77, 171, 247, 0.6), 0 0 40px rgba(77, 171, 247, 0.3);
  --glow-primary-weak: 0 0 20px rgba(77, 171, 247, 0.1);
  --glow-primary-strong: 0 0 30px rgba(77, 171, 247, 0.4), 0 0 40px rgba(77, 171, 247, 0.6);
  --glow-secondary: 0 0 20px rgba(151, 117, 250, 0.6), 0 0 40px rgba(151, 117, 250, 0.3);
  --glow-accent: 0 0 15px rgba(16, 185, 129, 0.6), 0 0 30px rgba(16, 185, 129, 0.3);
  --glow-error: 0 0 15px rgba(239, 68, 68, 0.6), 0 0 30px rgba(239, 68, 68, 0.3);
  --glow-warning: 0 0 15px rgba(245, 158, 11, 0.6), 0 0 30px rgba(245, 158, 11, 0.3);
  --glow-neon: 0 0 10px rgba(0, 255, 255, 0.8), 0 0 20px rgba(0, 255, 255, 0.4), 0 0 30px rgba(0, 255, 255, 0.2);
  --glow-cyber: 0 0 8px rgba(255, 0, 255, 0.8), 0 0 16px rgba(255, 0, 255, 0.4), inset 0 0 8px rgba(255, 0, 255, 0.2);

  /* 带透明度的强调色 */
  --accent-primary-opacity: rgba(77, 171, 247, 0.3);
  --accent-secondary-opacity: rgba(151, 117, 250, 0.3);

  /* 文字光效 */
  --text-glow-weak: 0 0 5px rgba(255, 255, 255, 0.3);
  --text-glow-medium: 0 0 10px rgba(255, 255, 255, 0.6), 0 0 20px rgba(77, 171, 247, 0.4);
  --text-glow-strong: 0 0 15px rgba(255, 255, 255, 0.8), 0 0 25px rgba(77, 171, 247, 0.6);
  --text-glow-strongest: 0 0 20px rgba(255, 255, 255, 1), 0 0 35px rgba(77, 171, 247, 0.8), 0 0 45px rgba(151, 117, 250, 0.6);
  --text-glow-primary: 0 0 10px rgba(77, 171, 247, 0.8);
  --text-glow-primary-weak: 0 0 20px rgba(77, 171, 247, 0.4);
  --text-glow-primary-strong: 0 0 35px rgba(77, 171, 247, 0.8);

  /* 玻璃拟态渐变 - 使用rgba实现透明度 */
  --gradient-glass: linear-gradient(135deg,
      rgba(255, 255, 255, 0.1) 0%,
      rgba(255, 255, 255, 0.05) 50%,
      rgba(255, 255, 255, 0.08) 100%);
  --gradient-glass-hover: linear-gradient(135deg,
      rgba(255, 255, 255, 0.15) 0%,
      rgba(255, 255, 255, 0.08) 50%,
      rgba(255, 255, 255, 0.12) 100%);

  /* 玻璃拟态阴影 */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glass-hover: 0 12px 40px rgba(0, 0, 0, 0.15);

  /* 间距系统 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* 字体大小 */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  /* 边框圆角 */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;

  /* 过渡动画 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-cubic: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* 响应式断点 */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* 导航项内边距 */
  --nav-item-padding-desktop: 1rem 1.5rem;
  --nav-item-padding-mobile: 0.75rem 1rem;
}

/* ===== 个人中心页面基础布局 ===== */
.profile-page {
  min-height: auto;
  height: auto;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow-y: visible;
  box-sizing: border-box;
  width: 100%;
  max-width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-container {
  max-width: 1400px;
  margin: 0;
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: visible;
  backdrop-filter: blur(10px);
  border: none;
  display: flex;
  min-height: min-content;
  height: auto;
  width: 100%;
  transition: all var(--transition-slow);
  box-sizing: border-box;
  gap: 0;
  background: var(--bg-primary);
  flex-direction: row;
}

/* ===== 侧边栏导航基础布局 ===== */
.profile-sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-right: 1px solid var(--border-color);
  padding: var(--spacing-xl) 0;
  position: relative;
  min-width: 280px;
  flex-shrink: 0;
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.05);
  height: 100%;
  overflow-y: hidden;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  /* 通用背景渐变 - 使用rgba实现透明度 */
  background: linear-gradient(135deg,
      rgba(59, 130, 246, 0.05) 0%,
      rgba(139, 92, 246, 0.05) 50%,
      rgba(16, 185, 129, 0.05) 100%);
  backdrop-filter: blur(10px);
  border-image: linear-gradient(180deg,
      transparent 0%,
      rgba(59, 130, 246, 0.3) 50%,
      transparent 100%) 1;
  /* 通用科技感网格背景 */
}

/* 科技感网格背景 */
.profile-sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.3;
  pointer-events: none;
  /* 移除可能导致晃动的网格动画 */
}

/* 移除网格移动动画关键帧 */
/* @keyframes grid-move {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(20px, 20px);
  }
} */

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
}

.profile-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--nav-item-padding-desktop);
  border: none;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-cubic);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  box-sizing: border-box;
  margin: 2px 0;
  /* 通用玻璃拟态效果 - 使用rgba实现透明度 */
  background: var(--gradient-glass);
  box-shadow: var(--shadow-glass), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  /* 通用光效层 */
  position: relative;
  /* 通用波纹效果容器 */
  transform-style: preserve-3d;
}

/* 添加科幻光效层 */
.profile-nav-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent,
      rgba(255, 255, 255, 0.2),
      transparent);
  transition: left 0.6s ease;
  z-index: 1;
}

/* 通用霓虹边框效果 */
.profile-nav-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--border-radius-md);
  border: 1px solid transparent;
  background: linear-gradient(45deg,
      rgba(59, 130, 246, 0.3),
      rgba(139, 92, 246, 0.3),
      rgba(16, 185, 129, 0.3)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.profile-nav-item:hover {
  background: var(--gradient-glass-hover);
  color: var(--text-primary);
  transform: translateX(6px) translateY(-2px);
  box-shadow: var(--shadow-glass-hover), var(--glow-primary);
  margin-right: 4px;
  /* 移除可能导致晃动的无限动画 */
  /* animation: cyber-glow 1.5s ease-in-out infinite alternate; */
}

.profile-nav-item:hover::before {
  left: 100%;
}

.profile-nav-item:hover::after {
  opacity: 1;
  /* animation: neon-border 2s ease-in-out infinite alternate; */
}

.profile-nav-item.active {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  font-weight: 600;
  box-shadow: var(--shadow-lg), var(--glow-primary);
  transform: translateX(8px) translateY(-3px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  width: 100%;
  box-sizing: border-box;
  margin-right: 4px;
  /* 移除可能导致晃动的无限动画 */
  /* animation: active-pulse 2s ease-in-out infinite; */
  z-index: 2;
}

.profile-nav-item.active::before {
  left: 100%;
  /* animation: active-scan 3s linear infinite; */
}

.profile-nav-item.active::after {
  opacity: 1;
  background: linear-gradient(45deg,
      var(--accent-primary-opacity),
      var(--accent-secondary-opacity)) border-box;
  /* animation: active-border-glow 1.5s ease-in-out infinite alternate; */
}

/* 通用点击波纹效果 */
.profile-nav-item::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-primary-opacity) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  pointer-events: none;
}

.profile-nav-item:active::after {
  width: 300px;
  height: 300px;
}

.nav-icon {
  font-size: var(--font-size-lg);
  width: 24px;
  text-align: center;
  overflow: visible;
  /* 移除全息投影效果，保持图标完全透明 */
  /* box-shadow: var(--glow-primary-weak); */
  transition: transform var(--transition-normal), background var(--transition-normal), box-shadow var(--transition-normal);
}

.profile-nav-item:hover .nav-icon {
  transform: scale(1.1);
  /* 移除悬停背景色，保持图标完全透明 */
  /* background: var(--bg-hover); */
  box-shadow: var(--glow-primary);
}

.profile-nav-item:hover .nav-icon::before {
  opacity: 1;
}

.profile-nav-item.active .nav-icon {
  /* 移除背景色，保持图标完全透明 */
  /* background: var(--bg-primary); */
  box-shadow: var(--glow-primary-strong), var(--glow-secondary);
}

.profile-nav-item.active .nav-icon::before {
  opacity: 1;
  /* animation: holographic-shimmer 2s linear infinite; */
}

/* 通用图标粒子效果 */
.nav-icon::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent, var(--accent-primary-opacity), transparent, var(--accent-secondary-opacity), transparent);
  /* animation: holographic-shimmer 3s linear infinite; */
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.nav-label {
  font-size: var(--font-size-sm);
  position: relative;
  text-shadow: var(--text-glow-weak);
}

.profile-nav-item.active .nav-label {
  font-weight: 600;
  text-shadow: var(--text-glow-strong);
}

.profile-nav-item.active .nav-label::after {
  opacity: 1;
  /* animation: text-glow 2s ease-in-out infinite alternate; */
}

.profile-nav-item:hover .nav-label {
  text-shadow: var(--text-glow-medium);
}

.profile-nav-item:hover .nav-label::after {
  opacity: 0.8;
}

@keyframes text-glow {
  0% {
    text-shadow: var(--text-glow-strong);
  }

  100% {
    text-shadow: var(--text-glow-strongest);
  }
}

/* 通用文字光效层 */
.nav-label::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: var(--text-inverse);
  text-shadow: var(--text-glow-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* ===== 内容区域基础布局 ===== */
.profile-content {
  flex: 1;
  padding: 0;
  background-color: var(--bg-primary);
  position: relative;
  display: flex;
  flex-direction: column;
  max-width: 100%;
  box-sizing: border-box;
  min-height: min-content;
  height: auto;
  overflow-y: visible;
  /* 添加内容切换动画 */
  animation: content-fade-in 0.6s ease-out;
}

@keyframes content-fade-in {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.content-header {
  padding: var(--spacing-xl) var(--spacing-2xl);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  position: relative;
  margin-top: 4px;
}

.content-body {
  flex: 1;
  padding: var(--spacing-xl) var(--spacing-2xl);
  overflow-y: auto;
  /* 内容超出时显示滚动条 */
  min-height: min-content;
  height: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) transparent;

}

/* Webkit浏览器滚动条样式（修复纯CSS下的嵌套写法）*/
.content-body::-webkit-scrollbar {
  width: 6px;
}

.content-body::-webkit-scrollbar-track {
  background: transparent;
}

.content-body::-webkit-scrollbar-thumb {
  background-color: var(--accent-primary);
  border-radius: 3px;
  border: 1px solid transparent;
  background-clip: content-box;
}

.content-body::-webkit-scrollbar-thumb:hover {
  background-color: var(--accent-secondary);
}

/* ===== 响应式布局 ===== */
@media (max-width: 768px) {
  .profile-page {
    padding: 0;
    min-height: calc(100vh - 70px);
  }

  .profile-container {
    border-radius: 0;
    box-shadow: none;
    border: none;
    flex-direction: column;
    height: auto;
    min-height: min-content;
    /* 改为最小内容高度 */
    max-height: calc(100vh - 70px);
    /* 添加最大高度限制 */
  }

  .profile-sidebar {
    width: 100%;
    min-width: auto;
    padding: var(--spacing-sm) 0;
    flex-shrink: 0;
    height: auto;
  }

  .sidebar-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding: 0 var(--spacing-sm);
    gap: 6px;
  }

  .profile-nav-item {
    padding: var(--nav-item-padding-mobile);
    font-size: var(--font-size-xs);
    width: 100%;
    box-sizing: border-box;
    min-width: var(--nav-item-min-width-mobile);
    flex: 1;
  }

  .profile-nav-item.active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    padding: var(--nav-item-active-padding-mobile);
    background: var(--accent-primary);
    color: var(--text-inverse);
    border-color: var(--accent-primary);
    width: 100%;
    box-sizing: border-box;
    min-width: var(--nav-item-active-min-width-mobile);
    flex: 1;
  }

  .nav-icon {
    font-size: var(--font-size-md);
  }

  .nav-label {
    font-size: 10px;
  }

  .content-header {
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 45px;
  }

  .content-header h2 {
    font-size: var(--font-size-xl);
  }

  .content-body {
    padding: var(--spacing-lg) var(--spacing-md);
    height: auto;
    min-height: min-content;
  }

  .content-body:has(.profile-tab__section) {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  /* 移动端小屏幕其他标签页最小高度设置 */
  .content-body:has(.statistics-tab__section),
  .content-body:has(.checkin-tab__section),
  .content-body:has(.courses-section),
  .content-body:has(.recent-section),
  .content-body:has(.voice-settings-tab) {
    /* 移除固定高度设置，使用自适应高度避免嵌套冲突 */
    min-height: min-content;
    max-height: none;
  }
}

@media (max-width: 480px) {
  .profile-container {
    min-height: auto;
  }

  .sidebar-nav {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }

  .profile-nav-item {
    font-size: 10px;
    min-width: 70px;
  }

  .nav-icon {
    font-size: var(--font-size-sm);
  }

  .nav-label {
    font-size: 8px;
  }

  .content-body {
    padding: var(--spacing-md) var(--spacing-sm);
  }
}

/* ===== 头像上传相关样式 ===== */
.profile-tab__avatar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  position: absolute;
  bottom: 8px;
  right: 8px;
  z-index: 10;
}

.profile-tab__upload-btn,
.profile-tab__delete-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--border-radius-full);
  background: var(--gradient-glass);
  backdrop-filter: blur(10px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-glass);
  border: 1px solid var(--border-light);
}

.profile-tab__upload-btn:hover,
.profile-tab__delete-btn:hover {
  background: var(--gradient-glass-hover);
  box-shadow: var(--shadow-glass-hover);
  transform: translateY(-2px);
  border-color: var(--accent-primary-light);
}

.profile-tab__upload-btn:active,
.profile-tab__delete-btn:active {
  transform: translateY(0);
}

.profile-tab__upload-btn {
  color: var(--accent-primary);
}

.profile-tab__upload-btn:hover {
  color: var(--accent-primary-dark);
  box-shadow: var(--shadow-glass-hover), var(--glow-primary);
}

.profile-tab__delete-btn {
  color: var(--color-error);
}

.profile-tab__delete-btn:hover {
  color: #dc2626;
  box-shadow: var(--shadow-glass-hover), var(--glow-error);
}

/* 文件上传输入框样式 */
.profile-tab__upload-btn input[type="file"] {
  display: none;
}

/* 上传进度指示器 */
.avatar-upload-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  backdrop-filter: blur(5px);
}

/* 头像预览样式 */
.avatar-preview {
  position: relative;
  width: 100px;
  height: 100px;
  border-radius: var(--border-radius-full);
  overflow: hidden;
  border: 2px solid var(--border-light);
  transition: all var(--transition-normal);
}

.avatar-preview:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}/* 头像预览样式 */
.avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 语音设置部分样式 ===== */
.voice-settings-section {
  width: 100%;
  height: auto;
  min-height: min-content;
  padding: 0;
  margin: 0;
}

/* 确保语音设置标签页在内容区域内正确显示 */
.content-body .voice-settings-tab {
  margin: 0;
  max-width: none;
  width: 100%;
  box-sizing: border-box;
}

/* 响应式语音设置 */
@media (max-width: 768px) {
  .content-body .voice-settings-tab {
    padding: 16px;
    border-radius: 12px;
  }
  
  .voice-settings-section {
    padding: 0;
  }
}

@media (max-width: 480px) {
  .content-body .voice-settings-tab {
    padding: 12px;
    border-radius: 8px;
  }
}/* Promoter Landing Page - Unified Style */

.promoter-landing-page {
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  background-color: var(--bg-primary);
  /* Unified background */
  color: var(--text-primary);
  overflow-x: hidden;
  padding-bottom: 4rem;
}

/* Common Section Styles */
.hero-section,
.benefits-section,
.commission-section,
.success-stories-section,
.cta-section {
  padding: 4rem 2rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  /* Remove individual background colors to fix "two background colors" issue */
  background-color: transparent;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* Hero Section */
.hero-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60vh;
  position: relative;
  /* Ensure positioning context for pseudo-element */
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  /* Slightly larger to cover edges */
  height: 120%;
  background: radial-gradient(circle at center, rgba(var(--accent-primary-rgb, 59, 130, 246), 0.08) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

@media (max-width: 1024px) {
  .hero-section {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1rem;
    gap: 3rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-actions {
    justify-content: center;
  }
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  color: var(--accent-primary);
  border-radius: 50px;
  padding: 0.5rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2);
}

.zap-icon {
  width: 1rem;
  height: 1rem;
  margin-right: 0.5rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: var(--text-primary);
}

/* 防止其他页面的 .hero-title 渐变文字样式污染当前页 */
.promoter-landing-page .hero-title {
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
}

.promoter-landing-page .hero-title .highlight {
  color: var(--color-warning);
  position: relative;
  z-index: 1;
  text-shadow: 0 0 20px rgba(245, 158, 11, 0.2);
  -webkit-text-fill-color: currentColor;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* Hero Visual */
.hero-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  position: relative;
}

.floating-card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.earning-preview {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  min-width: 280px;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2);
  border-radius: 8px;
  padding: 0.35rem 0.75rem;
  font-weight: 600;
}

.preview-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.preview-subtitle {
  font-size: 0.9rem;
  color: var(--color-success);
}

/* Benefits Grid */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.benefit-card {
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  background: var(--bg-card);
  /* Distinct card background */
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.benefit-icon-wrapper {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1.5rem;
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
}

.benefit-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.benefit-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.highlight-badge {
  display: inline-block;
  background: rgba(var(--accent-secondary-rgb, 139, 92, 246), 0.1);
  color: var(--accent-secondary);
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
}

/* Commission Tiers */
.commission-tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.tier-card {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  /* Distinct card background */
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.tier-card:hover {
  box-shadow: var(--shadow-lg);
}

.tier-card.recommended {
  border: 2px solid var(--accent-primary);
  transform: scale(1.02);
}

.tier-card.premium {
  border: 2px solid var(--accent-secondary);
}

.recommend-badge,
.premium-badge {
  position: absolute;
  top: 15px;
  right: -30px;
  color: white;
  padding: 0.3rem 2rem;
  font-size: 0.8rem;
  font-weight: 700;
  transform: rotate(45deg);
  z-index: 10;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.recommend-badge {
  background: var(--accent-primary);
}

.premium-badge {
  background: var(--accent-secondary);
}

.tier-header {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.tier-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.first-purchase-rate {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.tier-card.premium .first-purchase-rate {
  color: var(--accent-secondary);
}

.renewal-rate {
  font-size: 1rem;
  color: var(--color-success);
  font-weight: 600;
  background: rgba(16, 185, 129, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  display: inline-block;
}

.requirement {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
  text-align: center;
  margin-bottom: 1.5rem;
  background: var(--bg-secondary);
  /* Use bg-secondary for contrast within card */
  padding: 0.75rem;
  border-radius: 8px;
}

.benefits-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefits-list li {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.check-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-success);
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.commission-note {
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.05);
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 3rem;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.commission-note p {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.commission-note strong {
  color: var(--text-primary);
}

/* Success Stories */
.stories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.story-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

.story-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.story-header {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}

.avatar {
  font-size: 2rem;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 50%;
  margin-right: 1rem;
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.story-info h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.story-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.income {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-warning);
}

.story-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex: 1;
  font-style: italic;
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: normal;
}

/* CTA Section */
.cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-card);
  padding: 3rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.cta-content h2 {
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.cta-content p {
  margin: 0 0 1.25rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 1rem 2rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.cta-feature {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  padding: 0;
  line-height: 1.6;
}

.feature-icon {
  width: 1.2rem;
  height: 1.2rem;
  color: var(--color-success);
  flex-shrink: 0;
  display: block;
  transform: translateY(0.5px);
}

.cta-feature span {
  display: inline-block;
  line-height: 1.6;
}

/* Modal Redesign */
.detail-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease-out;
}

.detail-modal {
  background: var(--bg-primary);
  border-radius: 24px;
  width: min(900px, 100%);
  max-height: 85vh;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-color);
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 10;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.25rem;
  padding: 0;
}

.close-btn:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Sections as Cards */
.detailed-tiers,
.founder-rules,
.calculation-examples {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.detailed-tiers h3,
.founder-rules h3,
.calculation-examples h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  border-left: none;
  /* Reset old style */
  padding-left: 0;
  /* Reset old style */
}

.detailed-tiers h3::before,
.founder-rules h3::before,
.calculation-examples h3::before {
  content: '';
  width: 6px;
  height: 24px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
  border-radius: 3px;
  display: block;
}

/* Commission Table */
.commission-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: transparent;
  border: none;
}

.commission-table th {
  text-align: center;
  padding: 1rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border-light);
  background: transparent;
}

.commission-table td {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  font-weight: 500;
  text-align: center;
}

.commission-table tr:last-child td {
  border-bottom: none;
}

.commission-table tr:hover td {
  background: var(--bg-secondary);
}

/* Level Badges */
.level-badge {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-block;
}

.level-badge.monthly {
  background: rgba(56, 189, 248, 0.1);
  color: #0ea5e9;
}

.level-badge.yearly {
  background: rgba(74, 222, 128, 0.1);
  color: #16a34a;
}

.level-badge.lifetime {
  background: rgba(192, 132, 252, 0.1);
  color: #9333ea;
}

.level-badge.founder {
  background: rgba(248, 113, 113, 0.1);
  color: #dc2626;
}

.rate-highlight {
  color: var(--color-success);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Rule Cards */
.rule-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.rule-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.2s;
}

.rule-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: var(--bg-card);
  border-color: var(--accent-primary);
}

.rule-range {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.rule-rate {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
  line-height: 1;
}

.rule-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Calculation Examples */
.example-cards {
  display: grid;
  gap: 1.5rem;
}

.example-card {
  padding: 2rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  transition: all 0.2s;
}

.example-card:hover {
  box-shadow: var(--shadow-md);
}

.example-card.featured {
  border: 2px solid var(--color-warning);
}

.example-card.premium {
  border: 2px solid var(--accent-primary);
}

.featured-badge,
.premium-badge {
  position: absolute;
  top: 15px;
  right: -30px;
  padding: 0.35rem 3rem;
  transform: rotate(45deg);
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.featured-badge {
  background: var(--color-warning);
}

.premium-badge {
  background: var(--accent-primary);
}

.example-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  padding-right: 2rem;
}

.example-scenario p {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.example-calc-grid {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  border: 1px solid var(--border-light);
}

.calc-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--border-light);
}

.calc-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.calc-item.highlight-premium,
.calc-item.highlight-benefit {
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
  margin: 0 -0.75rem 0.75rem;
  padding: 0.75rem;
  border-radius: 6px;
  border-bottom: none;
}

.calc-label {
  color: var(--text-secondary);
}

.calc-formula {
  font-family: var(--font-family-mono, monospace);
  color: var(--text-primary);
  font-weight: 500;
}

.example-result {
  color: var(--accent-primary);
  font-weight: 700;
  margin-left: 0.5rem;
}

.example-total {
  font-size: 1.25rem;
  color: var(--color-warning);
  font-weight: 800;
  margin-top: 1.5rem;
  text-align: right;
  padding-top: 1rem;
  border-top: 2px solid var(--border-light);
}

.example-note {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning-dark, #b45309);
  padding: 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
  margin-top: 1rem;
  font-weight: 500;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* New Button Styles */
.promoter-btn-primary {
  padding: 0.8rem 2rem;
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.3);
}

.promoter-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.4);
}

.promoter-btn-secondary {
  padding: 0.8rem 2rem;
  font-size: 1.1rem;
  font-weight: 700;
  background: transparent;
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-left: 12px;
}

.promoter-btn-secondary:hover {
  background: rgba(var(--accent-primary-rgb, 59, 130, 246), 0.1);
}

/* Hero Actions Container */
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

@media (max-width: 768px) {
  .hero-actions {
    justify-content: center;
  }
  
  .promoter-btn-primary,
  .promoter-btn-secondary {
    width: 100%;
    margin-left: 0;
    margin-bottom: 12px;
  }
}

/* Calculation CTA Section */
.calculation-cta {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(to bottom right, rgba(var(--accent-primary-rgb, 59, 130, 246), 0.05), rgba(var(--accent-secondary-rgb, 139, 92, 246), 0.05));
  border-radius: 16px;
  border: 1px solid rgba(var(--accent-primary-rgb, 59, 130, 246), 0.2);
}

.calculation-cta h4 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-card);
  /* Ensure contrast against cta background */
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.advantage-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.advantage-item strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.25rem;
}

.advantage-item span {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.final-cta {
  text-align: center;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.final-cta:last-child {
  margin-bottom: 0;
  margin-top: 1.5rem;
  font-size: 1.25rem;
  color: var(--color-warning);
  font-weight: 700;
  line-height: 1.4;
}

/* Modal Footer */
.modal-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border-light);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  position: sticky;
  bottom: 0;
  z-index: 10;
  /* Ensure it sits above content */
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.purchase-btn {
  width: 100%;
  max-width: 400px;
  padding: 1rem 2rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.3);
}

.purchase-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--accent-primary-rgb, 59, 130, 246), 0.4);
}

.close-modal-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.5rem 1rem;
  transition: color 0.2s;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.close-modal-btn:hover {
  color: var(--text-primary);
}

.story-body {
  flex: 1;
  margin-top: 0.25rem;
}

.story-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
}

.income-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-warning);
  color: var(--text-inverse);
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.story-rating {
  display: flex;
  gap: 6px;
}

.star {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.star.filled {
  color: var(--color-warning);
}

.stories-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.story-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-light);
  background: transparent;
}

.story-item:hover {
  background: var(--bg-secondary);
}/* 变现说明页面样式：现代、清晰、重点突出 */
.monetization-page {
  width: 100%;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--text-primary);
}

/* Hero Section */
.mono-hero {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-inverse);
  padding: 80px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.mono-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
  animation: rotate 60s linear infinite;
  pointer-events: none;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.mono-hero-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.mono-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(4px);
  font-weight: 500;
  margin-bottom: 20px;
}

.mono-hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0 0 16px;
  line-height: 1.2;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.mono-hero-sub {
  font-size: 1.25rem;
  max-width: 720px;
  margin: 0 auto 40px;
  opacity: 0.95;
  line-height: 1.6;
}

.mono-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.mono-stat {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 20px;
  transition: transform 0.3s ease;
}

.mono-stat:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.25);
}

.mono-stat .num {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.mono-stat .label {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Section Styles */
.mono-section {
  padding: 90px 0;
}

.mono-section.alt {
  background: var(--bg-primary); /* Ensure contrast */
}

.mono-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.mono-section-head {
  text-align: center;
  margin-bottom: 60px;
}

.mono-section-head h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0 0 16px;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.mono-section-head p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Steps */
.mono-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.mono-step {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  gap: 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.mono-step:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  border-color: var(--accent-primary);
}

.step-index {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--accent-primary);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  flex-shrink: 0;
}

.step-body h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-body p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Pricing Grid */
.mono-pricing {
  background: var(--bg-tertiary);
  border-radius: 24px;
  padding: 40px;
  margin-top: 40px;
}

.mono-subtitle {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 32px;
}

.mono-pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.price-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.price-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.06);
}

.price-card.highlight {
  border: 2px solid var(--accent-primary);
  background: linear-gradient(to bottom right, var(--bg-secondary), rgba(var(--accent-primary-rgb), 0.05));
}

.price-card.premium {
  border: 2px solid var(--accent-secondary);
  background: linear-gradient(to bottom right, var(--bg-secondary), rgba(var(--accent-secondary-rgb), 0.05));
}

.price-card .price-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.price-card .price-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 12px 0;
}

.price-card .price-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  line-height: 1.5;
}

/* Promotion Channels */
.mono-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.mono-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px;
  transition: all 0.3s ease;
}

.mono-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.06);
}

.mono-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.mono-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--accent-primary);
}

.mono-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.mono-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.mono-check {
  color: var(--accent-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Income Example */
.mono-example {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.example-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.example-item {
  background: var(--bg-tertiary);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
}

.example-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.example-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.example-value.highlight {
  color: var(--accent-primary);
  font-size: 1.8rem;
}

.example-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  background: rgba(var(--accent-primary-rgb), 0.05);
  padding: 16px;
  border-radius: 12px;
  line-height: 1.5;
}

/* Highlights */
.mono-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s ease;
}

.highlight-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
}

.highlight-card svg {
  color: var(--accent-primary);
  flex-shrink: 0;
}

.h-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.h-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* CTA Section */
.mono-cta-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.monetization-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  padding: 16px 48px;
  border-radius: 999px;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 20px rgba(var(--accent-primary-rgb), 0.3);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.monetization-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(var(--accent-primary-rgb), 0.4);
  color: white;
}

/* 确保按钮在不同主题下都有足够的对比度 */
.monetization-page .monetization-btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white !important;
  border: none;
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb), 0.25);
}

/* Responsive */
@media (max-width: 768px) {
  .mono-hero-title { font-size: 2.5rem; }
  .mono-hero-stats { grid-template-columns: 1fr; }
  .mono-section { padding: 60px 0; }
  .mono-section-head h2 { font-size: 2rem; }
}
.promoter-center {
  width: 100%;
  padding: 32px 40px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.promoter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--gutter-md);
  padding-bottom: var(--gutter-sm);
  border-bottom: 1px solid var(--border-color);
}

.promoter-header h1 {
  color: var(--text-primary);
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
}

.promoter-level-badge {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.level-label {
  font-size: 0.8rem;
  opacity: 0.9;
  margin-bottom: 2px;
}

.level-value {
  font-weight: 600;
  font-size: 1rem;
}

.promoter-tabs {
  display: flex;
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 4px;
  margin-bottom: var(--gutter-md);
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 12px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--bg-primary);
  color: var(--accent-primary);
  box-shadow: var(--shadow-small);
}

.promoter-content {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 30px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-medium);
}

/* 概览标签页样式 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: var(--gradient-card);
  color: var(--text-inverse);
  padding: 20px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-glow);
}
.upgrade-card { cursor: pointer; background: var(--accent-primary); color: var(--text-inverse); }
.upgrade-card:hover { filter: brightness(1.05); }

.stat-icon {
  font-size: 2.5rem;
  margin-right: 15px;
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 5px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.9;
}

.promoter-info {
  background: var(--bg-tertiary);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.promoter-info h3 {
  margin: 0 0 15px 0;
  color: var(--text-primary);
  font-size: 1.2rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
  border-bottom: none;
}

.info-item label {
  font-weight: 500;
  color: var(--text-secondary);
}

.info-item span {
  font-weight: 600;
  color: var(--text-primary);
}

.status.active {
  color: var(--color-success);
  font-weight: 600;
}

.status.inactive {
  color: var(--color-error);
  font-weight: 600;
}

.promo-code {
  background: var(--bg-secondary);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.9rem;
  border: 1px solid var(--border-color);
}

/* 佣金记录标签页样式 */
.commissions-tab h3 {
  margin: 0 0 20px 0;
  color: #333;
  font-size: 1.3rem;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.commissions-list {
  space-y: 10px;
}

.commission-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background: var(--bg-tertiary);
  border-radius: 8px;
  margin-bottom: 10px;
  border-left: 4px solid var(--accent-primary);
}

.commission-info {
  flex: 1;
}

.commission-amount {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-success);
  margin-bottom: 5px;
}

.commission-details {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.commission-status {
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.commission-status.pending {
  background: var(--color-warning);
  color: var(--text-inverse);
}

.commission-status.confirmed {
  background: #d1ecf1;
  color: #0c5460;
}

.commission-status.paid {
  background: #d4edda;
  color: #155724;
}

/* 推广管理标签页样式 */
.referrals-tab h3 {
  margin: 0 0 20px 0;
  color: var(--text-primary);
  font-size: 1.3rem;
}

.referral-tools {
  display: grid;
  gap: var(--gutter-md);
}

.promo-code-section,
.referral-link-section {
  background: var(--bg-tertiary);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.promo-code-section h4,
.referral-link-section h4 {
  margin: 0 0 15px 0;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.promo-code-display {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.promo-code-display code {
  flex: 1;
  background: var(--bg-primary);
  padding: 10px 15px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  font-family: var(--font-family-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.copy-btn {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: filter 0.2s ease;
}

.copy-btn:hover { filter: brightness(1.05); }

.promo-code-tip {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.referral-link {
  display: flex;
  gap: var(--gutter-sm);
}

.link-input {
  flex: 1;
  padding: 10px 15px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* 推广列表标签页样式 */
.referrals-list-tab h3 {
  margin: 0 0 20px 0;
  color: #333;
  font-size: 1.3rem;
}

.referrals-table {
  display: grid;
  gap: 10px;
}

.referrals-table .table-header,
.referrals-table .table-row {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 1fr 0.6fr 1fr 1fr 0.8fr 0.6fr;
  align-items: center;
}

.referrals-table .table-header {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.referrals-table .table-row {
  background: var(--bg-primary);
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.referrals-table .table-row + .table-row {
  margin-top: 6px;
}

.referrals-table .table-row:hover { box-shadow: var(--shadow-sm); }

.referrals-table .table-row div,
.referrals-table .table-header div {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.referrals-table .status-paid {
  color: #28a745;
  font-weight: 600;
}

.referrals-table .status-registered {
  color: #666;
  font-weight: 600;
}

/* 加载和错误状态样式 */
.loading-container,
.error-container,
.promoter-access-denied {
  text-align: center;
  padding: 60px 20px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.error-container h2,
.promoter-access-denied h2 {
  color: var(--color-error);
  margin-bottom: 10px;
}

.retry-btn {
  background: var(--color-error);
  color: var(--text-inverse);
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 15px;
}

.retry-btn:hover { filter: brightness(1.05); }

/* 过滤条与分页 */
.filter-bar { display: flex; gap: var(--gutter-sm); margin-bottom: var(--gutter-sm); }
.pagination { margin-top: var(--gutter-sm); }
.page-btn { padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-tertiary); color: var(--text-primary); }

/* 推广码销售 */
.code-sales-tab { display: grid; gap: var(--gutter-md); }
.policy-card { background: var(--bg-tertiary); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-md); }
.policy-card h3 { margin: 0 0 var(--gutter-sm) 0; color: var(--text-primary); }
.policy-card ul { margin: 0; padding-left: 1.2rem; color: var(--text-secondary); }
.help-tip { margin-top: 8px; color: var(--text-secondary); font-size: var(--font-size-sm); }
.current-discount { margin-top: 6px; color: var(--accent-primary); font-weight: 600; }
.policy-row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--gutter-md); align-items: stretch; }
.policy-card, .discount-card { height: 100%; display: flex; flex-direction: column; }
.bulk-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-md); box-shadow: var(--shadow-small); height: 100%; display: flex; flex-direction: column; }
.bulk-card h3 { margin: 0 0 var(--gutter-sm) 0; color: var(--text-primary); }
.bulk-grid { display: grid; grid-template-columns: 1fr; gap: var(--gutter-sm); flex: 1; }
.bulk-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-primary); }
.bulk-label { color: var(--text-secondary); }
.bulk-rate { font-weight: 700; color: var(--accent-primary); }
.current-bulk { margin-top: 6px; color: var(--accent-primary); font-weight: 600; }
.policy-content { flex: 1; }
.policy-card ul li { margin-bottom: 6px; }
.policy-footer { margin-top: auto; padding-top: 8px; border-top: 1px solid var(--border-color); }
.refund-note { margin-top: 8px; color: var(--text-secondary); font-size: var(--font-size-sm); }
.refund-note .refund-title { font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.refund-note ul li { margin-bottom: 4px; }
.discount-grid { flex: 1; }
.discount-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-md); box-shadow: var(--shadow-small); }
.discount-card h3 { margin: 0 0 var(--gutter-sm) 0; color: var(--text-primary); }
.discount-grid { display: grid; grid-template-columns: 1fr; gap: var(--gutter-sm); }
.discount-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-primary); }
.discount-item.active { border-color: var(--accent-primary); box-shadow: var(--shadow-sm); }
.discount-label { color: var(--text-secondary); }
.discount-rate { font-weight: 700; color: var(--accent-primary); }
.you-tag { margin-left: 6px; color: var(--accent-primary); font-weight: 600; }
.bulk-rules { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.mono { font-family: var(--font-family-mono); }
.accent { color: var(--accent-primary); }

.purchase-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-md); box-shadow: var(--shadow-small); }
.purchase-card h4 { margin: 0 0 var(--gutter-sm) 0; color: var(--text-primary); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gutter-sm); }
.form-item { display: flex; flex-direction: column; }
.form-label { color: var(--text-secondary); margin-bottom: 6px; font-size: var(--font-size-sm); }
.form-input, .form-select { background: var(--bg-primary); color: var(--text-primary); border: 1px solid var(--border-color); border-radius: 8px; padding: 8px 12px; }
.form-input:focus, .form-select:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-primary) 20%, transparent); }

.price-preview { margin-top: var(--gutter-sm); }
.price-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--gutter-sm); align-items: center; }
.multi-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr 1fr; gap: var(--gutter-sm); align-items: center; }
.multi-row { display: contents; }
.multi-type { font-weight: 600; color: var(--text-primary); }
.multi-base, .multi-unit, .multi-sub { color: var(--text-secondary); }
.price-summary { margin-top: var(--gutter-sm); }
.summary-row { display: flex; gap: var(--gutter-sm); align-items: center; justify-content: space-between; }
.total-line { font-weight: 700; color: var(--accent-primary); }
.actions { margin-top: var(--gutter-sm); display: flex; gap: var(--gutter-sm); align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-tertiary); color: var(--text-primary); cursor: pointer; }
.btn-primary { background: var(--accent-primary); color: var(--text-inverse); border-color: var(--accent-primary-dark); }
.hint { color: var(--text-secondary); }

@media (max-width: 900px) {
  .form-grid { grid-template-columns: 1fr; }
  .price-row { grid-template-columns: 1fr; }
  .multi-grid { grid-template-columns: 1fr; }
  .policy-row { grid-template-columns: 1fr; }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .promoter-center {
    padding: 10px;
  }
  
  .promoter-header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  .promoter-tabs {
    flex-wrap: wrap;
  }

  .tab-btn {
    min-width: 45%;
    margin-bottom: 5px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .commission-details {
    flex-direction: column;
    gap: 5px;
  }
  
  .referral-link {
    flex-direction: column;
  }
  
  .promo-code-display {
    flex-direction: column;
  }
  
  .promo-code-display code {
    text-align: center;
  }

  .referrals-table .table-header {
    display: none;
  }

  .referrals-table .table-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .referrals-table .table-row div:nth-child(1) { font-weight: 600; }
  .referrals-table .table-row div:nth-child(2),
  .referrals-table .table-row div:nth-child(3),
  .referrals-table .table-row div:nth-child(4),
  .referrals-table .table-row div:nth-child(5),
  .referrals-table .table-row div:nth-child(6),
  .referrals-table .table-row div:nth-child(7) {
    color: #555;
  }
}
.code-manage-tab { margin-top: var(--gutter-md); }
.manage-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-md); box-shadow: var(--shadow-small); }
.manage-card h4 { margin: 0 0 var(--gutter-sm) 0; color: var(--text-primary); }
.manage-filters { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--gutter-sm); margin-bottom: var(--gutter-sm); }
.manage-table { border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; }
.manage-table .table-header { display: grid; grid-template-columns: 1.3fr 0.8fr 0.8fr 0.8fr 1fr 1fr 1fr 1fr 0.8fr; gap: 0; background: var(--bg-tertiary); color: var(--text-secondary); font-weight: 600; padding: 10px 12px; }
.manage-table .empty-state { padding: 20px; text-align: center; color: var(--text-secondary); background: var(--bg-primary); }

@media (max-width: 900px) {
  .manage-filters { grid-template-columns: 1fr 1fr; }
  .manage-table .table-header { display: none; }
}
.stat-sub { font-size: var(--font-size-sm); opacity: 0.9; }
.stat-actions { margin-top: 8px; }
.btn-sm { padding: 6px 10px; font-size: var(--font-size-sm); }

/* Modal enhanced */
.modal-backdrop, .promoter-modal-backdrop { position: fixed; inset: 0; background: color-mix(in srgb, var(--bg-overlay, rgba(0,0,0,0.6)), transparent 0%); display: flex; align-items: center; justify-content: center; z-index: 1000; backdrop-filter: blur(2px); }
.modal, .promoter-modal { width: 480px; color: var(--text-primary); border-radius: 16px; padding: 24px; box-shadow: var(--shadow-large); background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box, linear-gradient(45deg, var(--accent-primary), var(--accent-secondary, #6c5ce7)) border-box; border: 1px solid transparent; }
.modal-large, .promoter-modal-large { width: 860px; max-width: 92vw; }
.modal-title, .promoter-modal-title { font-size: var(--font-size-2xl); margin-bottom: 12px; letter-spacing: 0.5px; }
.modal-content, .promoter-modal-content { color: var(--text-secondary); margin-bottom: var(--gutter-md); }
.modal-actions, .promoter-modal-actions { display: flex; justify-content: flex-end; gap: var(--gutter-sm); }

.compare-grid { margin-top: var(--gutter-sm); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
.compare-header, .compare-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 0; }
.compare-header { background: var(--bg-tertiary); color: var(--text-secondary); font-weight: 600; padding: 8px 12px; }
.compare-row { padding: 10px 12px; border-top: 1px solid var(--border-color); }
.compare-row:nth-child(odd) { background: color-mix(in srgb, var(--bg-primary), transparent 90%); }
.compare-row div:nth-child(2),
.compare-row div:nth-child(3),
.compare-row div:nth-child(4) { text-align: right; }
.upgrade-modal .upgrade-header { margin-bottom: var(--gutter-sm); }
.upgrade-modal .upgrade-title { font-size: var(--font-size-2xl); color: var(--text-primary); }
.upgrade-modal .upgrade-sub { color: var(--text-secondary); }
.upgrade-modal .upgrade-columns { display: grid; grid-template-columns: 1.7fr 1fr; gap: var(--gutter-md); align-items: start; }
.summary-card { border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-sm); background: var(--bg-secondary); }
.chips { display: flex; gap: 8px; margin-bottom: 8px; }
.chip { padding: 4px 8px; border-radius: 999px; border: 1px solid var(--border-color); background: var(--bg-primary); }
.callout-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.callout { border: 1px solid var(--border-color); border-radius: 8px; padding: 10px 12px; background: var(--bg-primary); }
.callout.accent { background: var(--accent-primary); color: var(--text-inverse); border-color: var(--accent-primary-dark); }
.callout-label { font-size: var(--font-size-sm); opacity: 0.85; }
.callout-value { font-size: var(--font-size-3xl); font-weight: 700; }
.note { margin-top: 8px; color: var(--text-secondary); }

.inline-form { display: flex; align-items: center; margin: var(--gutter-sm) 0; flex-wrap: nowrap; }
.inline-form.two-cols { justify-content: space-between; gap: var(--gutter-sm); }
.inline-label { color: var(--text-secondary); font-size: var(--font-size-sm); flex: 0 0 auto; white-space: nowrap; }
.inline-value { color: var(--text-primary); flex: 0 0 auto; text-align: right; white-space: nowrap; }
.inline-select { min-width: 260px; margin-left: auto; }

@media (max-width: 900px) {
  .inline-form.two-cols { flex-direction: column; align-items: stretch; }
  .inline-select { width: 100%; }
}

@media (max-width: 900px) {
  .upgrade-modal .upgrade-columns { grid-template-columns: 1fr; }
  .callout-grid { grid-template-columns: 1fr; }
}
.details-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--gutter-sm); margin-top: var(--gutter-sm); }
.detail-item { background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 8px; padding: 12px; }
.detail-label { color: var(--text-secondary); font-size: var(--font-size-sm); margin-bottom: 4px; }
.detail-value { font-size: var(--font-size-xl); font-weight: 700; color: var(--text-primary); text-align: right; }
.detail-value.accent { color: var(--accent-primary); }
/* 个人信息标签页专用样式文件 - 使用命名空间隔离 */

/* 新增科技感动画定义 */
@keyframes profile-card-glow {

  0%,
  100% {
    box-shadow: 0 0 20px rgba(77, 171, 247, 0.3), 0 0 40px rgba(77, 171, 247, 0.1);
  }

  50% {
    box-shadow: 0 0 30px rgba(77, 171, 247, 0.5), 0 0 60px rgba(77, 171, 247, 0.2);
  }
}

@keyframes profile-avatar-pulse {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(77, 171, 247, 0.7);
  }

  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 10px rgba(77, 171, 247, 0);
  }
}

@keyframes profile-text-shimmer {
  0% {
    background-position: -100% 0;
  }

  100% {
    background-position: 100% 0;
  }
}

@keyframes profile-data-float {

  0%,
  100% {
    transform: translateY(0px);
  }

  33% {
    transform: translateY(-2px);
  }

  66% {
    transform: translateY(1px);
  }
}



/* 个人信息区域样式 */
.profile-tab__section {
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  animation: profile-card-glow 3s ease-in-out infinite;
  transition: all 0.3s ease;
}



/* 用户卡片容器 */
.profile-tab__user-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
  transition: all 0.3s ease;
}

.profile-tab__user-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(77, 171, 247, 0.1) 50%, transparent 70%);
  transform: rotate(45deg);
  animation: profile-text-shimmer 3s ease-in-out infinite;
  pointer-events: none;
}

/* 用户头部区域 */
.profile-tab__user-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

/* 用户头像区域 */
.profile-tab__avatar-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.profile-tab__avatar-container {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--accent-primary);
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  animation: profile-avatar-pulse 4s ease-in-out infinite;
}

.profile-tab__avatar-container:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl), var(--glow-primary);
  animation-play-state: paused;
}

.profile-tab__avatar-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
}

.profile-tab__avatar-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
}

.profile-tab__avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  font-size: 48px;
  font-weight: normal;
}

/* 用户详情区域 */
.profile-tab__user-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* 用户名区域 */
.profile-tab__user-name-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  animation: profile-data-float 2s ease-in-out infinite;
}

.profile-tab__username {
  font-size: var(--font-size-xxl);
  font-weight: bold;
  color: var(--text-primary);
  margin: 0;
  text-shadow: var(--text-glow-weak);
  background: linear-gradient(45deg, var(--text-primary), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 个性签名区域 */
.profile-tab__user-signature-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.profile-tab__signature {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* 会员状态区域 */
.profile-tab__membership-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  animation: profile-data-float 2.5s ease-in-out infinite;
  animation-delay: 0.5s;
}

.profile-tab__member-badge {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  background: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--glow-primary);
  animation: profile-card-glow 2s ease-in-out infinite;
}

.profile-tab__expired-badge {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  background: var(--error-color);
  color: var(--text-inverse);
}

.profile-tab__expiry-date {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* 用户操作区域 */
.profile-tab__user-actions-section {
  display: flex;
  gap: var(--spacing-md);
}

/* 编辑模式样式 */
.profile-tab__edit-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
}

.profile-tab__edit-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-primary-transparent);
}

.profile-tab__edit-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  resize: vertical;
  min-height: 60px;
}

/* 按钮区域 */
.profile-tab__button-group {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.profile-tab__edit-btn,
.profile-tab__save-btn,
.profile-tab__cancel-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.profile-tab__edit-btn::before,
.profile-tab__save-btn::before,
.profile-tab__cancel-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.profile-tab__edit-btn:hover::before,
.profile-tab__save-btn:hover::before,
.profile-tab__cancel-btn:hover::before {
  left: 100%;
}

.profile-tab__edit-btn {
  background: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--glow-primary);
  animation: profile-card-glow 4s ease-in-out infinite;
}

.profile-tab__edit-btn:hover {
  background: var(--accent-primary-dark);
  transform: translateY(-2px);
}

.profile-tab__save-btn {
  background: var(--success-color);
  color: var(--text-inverse);
}

.profile-tab__save-btn:hover {
  background: var(--success-color-dark);
  transform: translateY(-2px);
}

.profile-tab__cancel-btn {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.profile-tab__cancel-btn:hover {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
}

/* 用户统计信息 */
.profile-tab__user-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
}

.profile-tab__stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.profile-tab__stat-value {
  font-size: var(--font-size-xxl);
  font-weight: bold;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-xs);
}

.profile-tab__stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* 会员信息区域 */
.profile-tab__membership-info {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-lg);
}

.profile-tab__membership-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.profile-tab__membership-title {
  font-size: var(--font-size-xl);
  font-weight: bold;
}

.profile-tab__membership-badge {
  background: var(--accent-secondary);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.profile-tab__membership-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.profile-tab__membership-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.profile-tab__membership-label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.profile-tab__membership-value {
  font-size: var(--font-size-md);
  font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .profile-tab__user-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-md);
  }

  .profile-tab__avatar-section {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .profile-tab__avatar-container {
    width: 100px;
    height: 100px;
  }

  .profile-tab__username {
    font-size: var(--font-size-xl);
  }

  .profile-tab__user-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .profile-tab__membership-details {
    grid-template-columns: 1fr;
  }

  .profile-tab__button-group {
    flex-direction: column;
  }
}/* 数据统计标签页专用样式文件 - 使用命名空间隔离 */

/* 新增科技感动画定义 */
@keyframes statistics-data-flow {
  0% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.8;
  }

  25% {
    transform: translateY(-3px) rotate(1deg);
    opacity: 1;
  }

  50% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.9;
  }

  75% {
    transform: translateY(2px) rotate(-1deg);
    opacity: 1;
  }

  100% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.8;
  }
}

@keyframes statistics-number-glow {

  0%,
  100% {
    text-shadow: 0 0 10px rgba(77, 171, 247, 0.5), 0 0 20px rgba(77, 171, 247, 0.3);
  }

  50% {
    text-shadow: 0 0 15px rgba(77, 171, 247, 0.8), 0 0 30px rgba(77, 171, 247, 0.6);
  }
}

@keyframes statistics-card-float {

  0%,
  100% {
    transform: translateY(0px);
    box-shadow: var(--shadow-sm);
  }

  50% {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--glow-primary-weak);
  }
}

@keyframes statistics-border-pulse {

  0%,
  100% {
    border-color: var(--border-color);
  }

  50% {
    border-color: var(--accent-primary);
  }
}

@keyframes statistics-icon-spin {
  0% {
    transform: rotate(0deg) scale(1);
  }

  50% {
    transform: rotate(180deg) scale(1.1);
  }

  100% {
    transform: rotate(360deg) scale(1);
  }
}

/* 统计区域样式 */
.statistics-tab__section {
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  animation: none;
}



/* 统计卡片网格布局 - 一行三个卡片 */
.statistics-tab__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

/* 统计卡片样式 */
.statistics-tab__card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  animation: statistics-card-float 3s ease-in-out infinite;
  animation-delay: calc(var(--card-index, 0) * 0.2s);
}

.statistics-tab__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
  animation-play-state: paused;
}

.statistics-tab__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

/* 特殊的总计卡片样式 */
.statistics-tab__card.statistics-tab__total-card {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border: none;
}

.statistics-tab__card.statistics-tab__total-card::before {
  display: none;
}

.statistics-tab__card.statistics-tab__total-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* 统计卡片头部 */
.statistics-tab__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.statistics-tab__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.statistics-tab__card.statistics-tab__total-card .statistics-tab__title {
  color: var(--text-inverse);
}

.statistics-tab__icon {
  font-size: var(--font-size-xl);
  opacity: 0.8;
}

/* 统计内容区域 */
.statistics-tab__content {
  text-align: center;
}

/* 统计数值样式 */
.statistics-tab__value {
  font-size: var(--font-size-xxxl);
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
  animation: statistics-number-glow 2s ease-in-out infinite;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 20px rgba(255, 255, 255, 0.4);
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.3));
}

.statistics-tab__card.statistics-tab__total-card .statistics-tab__value {
  color: var(--text-inverse);
}

/* 长文本适配 */
.statistics-tab__value.statistics-tab__long-text {
  font-size: var(--font-size-xxl);
}

.statistics-tab__value.statistics-tab__very-long-text {
  font-size: var(--font-size-xl);
}

/* 统计副标题 */
.statistics-tab__subtitle {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.statistics-tab__card.statistics-tab__total-card .statistics-tab__subtitle {
  color: var(--text-inverse);
  opacity: 0.9;
}

/* 统计次要信息 */
.statistics-tab__secondary {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  opacity: 0.8;
}

.statistics-tab__card.statistics-tab__total-card .statistics-tab__secondary {
  color: var(--text-inverse);
  opacity: 0.8;
}

/* 统计卡片动画效果 */
@keyframes statistics-tab__cardPulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.02);
  }

  100% {
    transform: scale(1);
  }
}

.statistics-tab__card:first-child {
  animation: statistics-tab__cardPulse 2s ease-in-out infinite;
}

/* 图标动画效果 */
.statistics-tab__icon {
  animation: statistics-icon-spin 4s linear infinite;
  animation-delay: calc(var(--card-index, 0) * 0.3s);
}

/* 响应式设计 */
@media (max-width: 1400px) {
  .statistics-tab__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .statistics-tab__value {
    font-size: var(--font-size-xxl);
  }
}

@media (max-width: 1024px) {
  .statistics-tab__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .statistics-tab__card {
    padding: var(--spacing-lg);
  }

  .statistics-tab__value {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 768px) {
  .statistics-tab__section {
    padding: var(--spacing-md);
    margin: 0 var(--spacing-sm) var(--spacing-sm) var(--spacing-sm);
  }

  .statistics-tab__cards {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .statistics-tab__card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
  }

  .statistics-tab__header {
    margin-bottom: var(--spacing-sm);
  }

  .statistics-tab__title {
    font-size: var(--font-size-md);
  }

  .statistics-tab__value {
    font-size: var(--font-size-xl);
  }

  .statistics-tab__value.statistics-tab__long-text {
    font-size: var(--font-size-lg);
  }

  .statistics-tab__value.statistics-tab__very-long-text {
    font-size: var(--font-size-md);
  }

  .statistics-tab__subtitle {
    font-size: var(--font-size-sm);
  }

  .statistics-tab__secondary {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  .statistics-tab__section {
    padding: var(--spacing-sm);
    margin: 0 var(--spacing-xs) var(--spacing-xs) var(--spacing-xs);
  }

  .statistics-tab__card {
    padding: var(--spacing-sm);
  }

  .statistics-tab__value {
    font-size: var(--font-size-lg);
  }
}/* 打卡记录标签页专用样式文件 - 使用命名空间隔离 */

/* 新增科技感动画定义 */
@keyframes checkin-calendar-glow {
  0%, 100% {
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
  }
  50% {
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.6);
  }
}

@keyframes checkin-date-pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes checkin-streak-glow {
  0%, 100% {
    text-shadow: 0 0 5px rgba(245, 158, 11, 0.5);
  }
  50% {
    text-shadow: 0 0 15px rgba(245, 158, 11, 0.8), 0 0 25px rgba(245, 158, 11, 0.4);
  }
}



/* 打卡区域样式 */
.checkin-tab__section {
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  animation: checkin-record-float 3s ease-in-out infinite;
}

.checkin-tab__section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 0%, rgba(16, 185, 129, 0.02) 50%, transparent 100%);
  background-size: 200% 200%;
  animation: checkin-border-scan 4s linear infinite;
  pointer-events: none;
}

/* 上部区域样式 */
.checkin-tab__upper-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

/* 下部区域样式 */
.checkin-tab__lower-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

/* 压缩版日历样式 */
.checkin-tab__calendar-compact {
  background: var(--bg-primary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  animation: checkin-calendar-glow 3s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}

.checkin-tab__calendar-compact::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  animation: checkin-border-scan 2s linear infinite;
}

.checkin-tab__calendar-compact .checkin-tab__calendar-header {
  margin-bottom: var(--spacing-md);
}

.checkin-tab__calendar-compact .checkin-tab__calendar-header h5 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.checkin-tab__calendar-compact .checkin-tab__calendar-grid {
  gap: 2px;
}

.checkin-tab__calendar-compact .checkin-tab__calendar-day {
  font-size: var(--font-size-xs);
  min-height: 24px;
}

.checkin-tab__calendar-compact .checkin-tab__calendar-weekday {
  font-size: 9px;
}

/* 压缩版规则样式 */
.checkin-tab__rules-compact {
  background: var(--bg-primary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  height: fit-content;
}

.checkin-tab__rules-compact .checkin-tab__rules-header {
  margin-bottom: var(--spacing-md);
}

.checkin-tab__rules-compact .checkin-tab__rules-header h5 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.checkin-tab__rules-compact .checkin-tab__rules-content {
  font-size: var(--font-size-sm);
}

.checkin-tab__rules-compact .checkin-tab__rule-section {
  margin-bottom: var(--spacing-md);
}

.checkin-tab__rules-compact .checkin-tab__rule-section h6 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs) 0;
}

.checkin-tab__rules-compact .checkin-tab__rule-section p,
.checkin-tab__rules-compact .checkin-tab__rule-section ul {
  margin: 0;
  color: var(--text-secondary);
}

.checkin-tab__rules-compact .checkin-tab__rule-section ul {
  padding-left: var(--spacing-md);
}

.checkin-tab__rules-compact .checkin-tab__rule-section li {
  margin-bottom: var(--spacing-xs);
}

/* 打卡头部区域 */
.checkin-tab__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.checkin-tab__header h4 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

/* 打卡按钮容器 */
.checkin-tab__button-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* 打卡按钮样式 */
.checkin-tab__btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  animation: checkin-calendar-glow 3s ease-in-out infinite;
}

.checkin-tab__btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.checkin-tab__btn:hover::before {
  left: 100%;
}

.checkin-tab__btn:hover:not(.checkin-tab__disabled) {
  background: var(--accent-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.checkin-tab__btn.checkin-tab__checked {
  background: var(--success-color);
  cursor: default;
}

.checkin-tab__btn.checkin-tab__disabled {
  background: var(--bg-secondary);
  color: var(--text-tertiary);
  cursor: not-allowed;
  opacity: 0.6;
}

/* 权限提示信息 */
.checkin-tab__permission-hint {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border-left: 3px solid var(--warning-color);
}

/* 打卡统计信息 - 紧凑布局：一行三个卡片 */
.checkin-tab__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.checkin-tab__stat {
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  animation: checkin-record-float 2.5s ease-in-out infinite;
  animation-delay: calc(var(--stat-index, 0) * 0.3s);
}

.checkin-tab__stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
  animation-play-state: paused;
}

.checkin-tab__stat-value {
  font-size: var(--font-size-xxl);
  font-weight: bold;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-xs);
}

.checkin-tab__stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* 日历网格样式 */
.checkin-tab__calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: var(--spacing-lg);
}

.checkin-tab__calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.checkin-tab__calendar-day.checkin-tab__header {
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
}

.checkin-tab__calendar-day:not(.checkin-tab__header) {
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}

.checkin-tab__calendar-day:not(.checkin-tab__header):hover {
  background: var(--accent-primary);
  color: var(--text-inverse);
  transform: scale(1.1);
}

.checkin-tab__calendar-day.checkin-tab__checked {
  background: var(--success-color);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

.checkin-tab__calendar-day.checkin-tab__current-month:not(.checkin-tab__header) {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.checkin-tab__calendar-day.checkin-tab__today {
  background: var(--accent-primary);
  color: var(--text-inverse);
  font-weight: bold;
  box-shadow: var(--shadow-md);
}

.checkin-tab__calendar-day.checkin-tab__today.checkin-tab__checked {
  background: var(--success-color);
}

/* 日历月份导航 */
.checkin-tab__calendar-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
}

.checkin-tab__calendar-month {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.checkin-tab__calendar-nav-btn {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.checkin-tab__calendar-nav-btn:hover {
  background: var(--accent-primary-dark);
  transform: translateY(-1px);
}

.checkin-tab__calendar-nav-btn:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}

/* 打卡记录列表 */
.checkin-tab__records {
  margin-top: var(--spacing-xl);
}

.checkin-tab__records h5 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.checkin-tab__record-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.checkin-tab__record-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-primary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.checkin-tab__record-item:hover {
  transform: translateX(4px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.checkin-tab__record-date {
  font-weight: 500;
  color: var(--text-primary);
}

.checkin-tab__record-time {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.checkin-tab__record-method {
  background: var(--accent-secondary);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* 响应式设计 - 为三部分布局优化 */
@media (max-width: 1200px) {
  /* 1200px以下：调整下部区域布局 */
  .checkin-tab__lower-section {
    gap: var(--spacing-lg);
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-day {
    min-height: 22px;
    font-size: 10px;
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-weekday {
    font-size: 8px;
  }
}

@media (max-width: 1024px) {
  /* 1024px以下：下部改为单列布局 */
  .checkin-tab__lower-section {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .checkin-tab__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }
  
  .checkin-tab__stat {
    padding: var(--spacing-md);
  }
  
  .checkin-tab__stat-value {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 768px) {
  /* 768px以下：移动端优化 */
  .checkin-tab__section {
    padding: var(--spacing-sm);
  }
  
  .checkin-tab__upper-section {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
  }
  
  .checkin-tab__header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .checkin-tab__stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .checkin-tab__stat {
    padding: var(--spacing-md);
  }
  
  .checkin-tab__stat-value {
    font-size: var(--font-size-lg);
  }
  
  .checkin-tab__calendar-compact {
    padding: var(--spacing-sm);
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-day {
    min-height: 20px;
    font-size: 9px;
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-weekday {
    font-size: 7px;
  }
  
  .checkin-tab__rules-compact {
    padding: var(--spacing-sm);
  }
  
  .checkin-tab__rules-compact .checkin-tab__rules-content {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  /* 480px以下：小屏幕移动端优化 */
  .checkin-tab__section {
    padding: var(--spacing-xs);
  }
  
  .checkin-tab__upper-section {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
  }
  
  .checkin-tab__stats {
    gap: var(--spacing-xs);
  }
  
  .checkin-tab__stat {
    padding: var(--spacing-sm);
  }
  
  .checkin-tab__stat-value {
    font-size: var(--font-size-md);
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-day {
    min-height: 18px;
    font-size: 8px;
  }
  
  .checkin-tab__calendar-compact .checkin-tab__calendar-weekday {
    font-size: 6px;
  }
  
  .checkin-tab__rules-compact .checkin-tab__rules-content {
    font-size: 10px;
  }
}/* 我的课程标签页专用样式文件 */

/* 科技感动画定义 */
@keyframes courses-progress-glow {
  0%, 100% { box-shadow: 0 0 5px var(--accent-primary); }
  50% { box-shadow: 0 0 20px var(--accent-primary), 0 0 30px var(--accent-primary); }
}

@keyframes courses-data-flow {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* 课程区域样式 */
.courses-section {
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

/* 课程网格布局 */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

/* 课程卡片样式 */
.course-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

/* 课程卡片头部 */
.course-card h5 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
  background: linear-gradient(45deg, var(--accent-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 进度条容器 */
.progress-container {
  margin-bottom: var(--spacing-lg);
}

.progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.progress-percentage {
  font-weight: 600;
  color: var(--accent-primary);
}

/* 进度条样式 */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-pill);
  overflow: hidden;
  position: relative;
  animation: courses-progress-glow 2s ease-in-out infinite;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-pill);
  transition: width 0.5s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, var(--text-inverse), transparent);
  opacity: 0.3;
  animation: progressShine 2s infinite;
}

@keyframes progressShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* 最后学习时间 */
.last-learned {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.last-learned::before {
  content: '🕒';
  font-size: var(--font-size-sm);
}

/* 继续学习按钮 */
.continue-btn {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.continue-btn:hover {
  background: var(--accent-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.continue-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.continue-btn:hover::before {
  left: 100%;
}

/* 空状态样式 */
.empty-courses {
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--text-tertiary);
}

.empty-courses-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-courses-text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.empty-courses-hint {
  font-size: var(--font-size-md);
  opacity: 0.7;
}

/* 课程卡片状态指示器 */
.course-status {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--accent-secondary);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.course-status.completed {
  background: var(--success-color);
}

.course-status.in-progress {
  background: var(--accent-primary);
}

.course-status.not-started {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* 课程难度指示器 */
.course-difficulty {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.difficulty-dots {
  display: flex;
  gap: 2px;
}

.difficulty-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bg-tertiary);
}

.difficulty-dot.filled {
  background: var(--accent-primary);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .courses-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .courses-section {
    padding: var(--spacing-sm);
  }
  
  .courses-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .course-card {
    padding: var(--spacing-sm);
  }
  
  .course-card h5 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
  }
  
  .progress-text {
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
  }
  
  .last-learned {
    font-size: 9px;
    margin-bottom: var(--spacing-sm);
  }
  
  .continue-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .empty-courses {
    padding: var(--spacing-xl);
  }
  
  .empty-courses-icon {
    font-size: 36px;
  }
  
  .empty-courses-text {
    font-size: var(--font-size-md);
  }
  
  .empty-courses-hint {
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 480px) {
  .courses-section {
    padding: var(--spacing-xs);
  }
  
  .course-card {
    padding: var(--spacing-xs);
  }
  
  .progress-bar {
    height: 6px;
  }
}/* 最近学习标签页专用样式文件 */

.recent-section {
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.recent-header {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid #f0f0f0;
}

.recent-header h4 {
  margin: 0;
  color: #333;
  font-size: 18px;
  font-weight: 600;
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.recent-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #4CAF50;
  transition: all 0.2s ease;
  position: relative;
}

.recent-item:hover {
  background: #e9ecef;
  transform: translateX(2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.recent-item-main {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.course-name {
  font-weight: 600;
  color: #2c3e50;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-name {
  color: #7f8c8d;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-item-details {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  font-size: 11px;
  color: #95a5a6;
  min-width: 120px;
}

.time-info {
  font-weight: 500;
  color: #6c757d;
  cursor: help;
}

.duration-info {
  color: #3498db;
  font-weight: 500;
}

.tasks-info {
  color: #e67e22;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.task-completion-rate {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  background: #f39c12;
  color: white;
  font-weight: 600;
}

.task-completion-rate.completed {
  background: #27ae60;
}

.completion-badge {
  background: #27ae60;
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 600;
  margin-top: 4px;
}

.no-recent-message {
  text-align: center;
  padding: 40px 20px;
  color: #95a5a6;
  font-size: 14px;
  background: #f8f9fa;
  border-radius: 6px;
}/* 语音设置标签页样式 - 使用主题变量 */
.voice-settings-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  overflow-x: hidden;
  box-sizing: border-box;
}

.voice-settings-tab {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--gradient-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: voice-tab-glow 4s ease-in-out infinite;
  box-sizing: border-box;
}

@keyframes voice-tab-glow {
  0%, 100% {
    box-shadow: var(--shadow-glass), 0 0 20px rgba(59, 130, 246, 0.1);
  }
  50% {
    box-shadow: var(--shadow-glass), 0 0 30px rgba(59, 130, 246, 0.2);
  }
}

.voice-settings-tab::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    rgba(255, 255, 255, 0.1) 100%);
  pointer-events: none;
  z-index: 1;
}

.voice-settings-tab::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transform: skewX(-20deg);
  animation: glass-shimmer 8s infinite;
  pointer-events: none;
  z-index: 2;
  max-width: 100%;
  box-sizing: border-box;
}

@keyframes glass-shimmer {
  0% {
    left: -100%;
  }
  50%, 100% {
    left: 150%;
  }
}

/* 确保内容在玻璃反光效果之上 */
.voice-settings-header,
.message,
.settings-section {
  position: relative;
  z-index: 3;
}

/* 头部样式 */
.voice-settings-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.voice-settings-header h2 {
  font-size: var(--font-size-2xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.voice-settings-header p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin: 0;
}

/* 消息样式 - 使用主题变量 */
.message {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  animation: fadeIn var(--transition-normal);
}

.message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.message-icon {
  font-size: var(--font-size-md);
}

@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 设置区域样式 - 使用主题变量 */
.settings-section {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  animation: fadeIn var(--transition-normal), settings-section-fade-in 0.5s ease-out;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

@keyframes settings-section-fade-in {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.settings-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    rgba(255, 255, 255, 0.1) 100%);
  pointer-events: none;
  z-index: 1;
}

.settings-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transform: skewX(-20deg);
  animation: section-shimmer 12s infinite;
  pointer-events: none;
  z-index: 2;
  max-width: 100%;
  box-sizing: border-box;
}

@keyframes section-shimmer {
  0% {
    left: -100%;
  }
  50%, 100% {
    left: 150%;
  }
}

/* 确保设置区域内容在玻璃反光效果之上 */
.settings-section h3,
.slider-control,
.settings-actions {
  position: relative;
  z-index: 3;
}

.settings-section:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 5px 15px rgba(59, 130, 246, 0.1);
  animation: settings-section-glow 4s ease-in-out infinite;
}

@keyframes settings-section-glow {
  0%, 100% {
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.1);
  }
  50% {
    box-shadow: 0 5px 25px rgba(59, 130, 246, 0.2);
  }
}

.settings-section h3 {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* 音色卡片样式 - 使用主题变量 */
.voice-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.voice-card {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-cubic);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.voice-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    rgba(255, 255, 255, 0.1) 100%);
  pointer-events: none;
  z-index: 1;
}

.voice-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transform: skewX(-20deg);
  animation: card-shimmer 10s infinite;
  pointer-events: none;
  z-index: 2;
  max-width: 100%;
  box-sizing: border-box;
}

@keyframes card-shimmer {
  0% {
    left: -100%;
  }
  50%, 100% {
    left: 150%;
  }
}

/* 确保音色卡片内容在玻璃反光效果之上 */
.voice-card-header,
.voice-card-body,
.voice-card-footer {
  position: relative;
  z-index: 3;
}

.voice-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
  animation: voice-card-pulse 2s infinite;
}

@keyframes voice-card-pulse {
  0%, 100% {
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
  }
  50% {
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.25);
  }
}

.voice-card.selected {
  border-color: var(--accent-primary);
  background: var(--accent-primary-opacity);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.2);
  animation: voice-card-glow 3s ease-in-out infinite;
}

@keyframes voice-card-glow {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.2);
  }
  50% {
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.35);
  }
}

.voice-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.voice-name {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
}

.voice-accent {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.voice-accent.us-tag {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary-light);
}

.voice-accent.uk-tag {
  background-color: rgba(139, 92, 246, 0.1);
  color: var(--accent-secondary);
  border: 1px solid var(--accent-secondary-light);
}

.voice-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.voice-type {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.test-voice-btn {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--glow-primary);
  position: relative;
  overflow: hidden;
}

.test-voice-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.test-voice-btn:hover:not(:disabled) {
  background: var(--accent-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.test-voice-btn:hover:not(:disabled)::before {
  left: 100%;
}

.test-voice-btn:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 滑块控件样式 - 使用主题变量 */
.slider-control {
  max-width: 400px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.slider-header span:first-child {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.slider-range {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border-light);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.slider::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--value, 50%);
  background: var(--gradient-primary);
  border-radius: 3px;
  transition: width var(--transition-normal);
  animation: slider-track-glow 3s ease-in-out infinite;
}

@keyframes slider-track-glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
  }
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: var(--border-radius-full);
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  position: relative;
  z-index: 2;
}

.slider::-webkit-slider-thumb:hover {
  background: var(--accent-primary-dark);
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  animation: slider-thumb-pulse 1.5s infinite;
}

@keyframes slider-thumb-pulse {
  0%, 100% {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  }
  50% {
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.8);
  }
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: var(--border-radius-full);
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  position: relative;
  z-index: 2;
}

.slider::-moz-range-thumb:hover {
  background: var(--accent-primary-dark);
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  animation: slider-thumb-pulse 1.5s infinite;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* 操作按钮样式 - 使用主题变量 */
.settings-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.save-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-width: 80px;
  background: var(--success-color);
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
}

.save-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.save-btn:hover:not(:disabled) {
  background: var(--success-color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.save-btn:hover:not(:disabled)::before {
  left: 100%;
}

.save-btn:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.reset-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-width: 80px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.reset-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.reset-btn:hover:not(:disabled) {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.reset-btn:hover:not(:disabled)::before {
  left: 100%;
}

.reset-btn:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 紧凑布局容器 */
.compact-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.settings-section.compact {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.settings-section.compact h3 {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-weight: 600;
}

/* 紧凑音色卡片布局 */
.voice-cards-compact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.voice-card-compact {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.voice-card-compact:hover {
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.voice-card-compact.selected {
  border-color: var(--accent-primary);
  background: var(--accent-primary-opacity);
}

.voice-card-header-compact {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.voice-name-compact {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.voice-accent-compact {
  padding: var(--spacing-xs) var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.voice-accent-compact.us-tag {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
}

.voice-accent-compact.uk-tag {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent-secondary);
}

.voice-info-compact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.voice-description-compact {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.3;
}

.voice-type-compact {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.test-voice-btn-compact {
  width: 100%;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-xs);
  font-size: var(--font-size-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--glow-primary);
  position: relative;
  overflow: hidden;
}

.test-voice-btn-compact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.test-voice-btn-compact:hover:not(:disabled) {
  background: var(--accent-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.test-voice-btn-compact:hover:not(:disabled)::before {
  left: 100%;
}

.test-voice-btn-compact:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 并排布局 */
.settings-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

/* 紧凑滑块控件 */
.slider-control-compact {
  width: 100%;
}

.slider-value {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.slider-compact {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border-light);
  outline: none;
  -webkit-appearance: none;
}

.slider-compact::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: var(--border-radius-full);
  background: var(--accent-primary);
  cursor: pointer;
}

.slider-compact::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: var(--border-radius-full);
  background: var(--accent-primary);
  cursor: pointer;
  border: none;
}

.slider-labels-compact {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* 紧凑操作按钮 */
.settings-actions-compact {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.save-btn-compact {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--success-color);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.save-btn-compact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.save-btn-compact:hover:not(:disabled) {
  background: var(--success-color-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.save-btn-compact:hover:not(:disabled)::before {
  left: 100%;
}

.save-btn-compact:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.reset-btn-compact {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.reset-btn-compact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.reset-btn-compact:hover:not(:disabled) {
  background: var(--bg-tertiary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.reset-btn-compact:hover:not(:disabled)::before {
  left: 100%;
}

.reset-btn-compact:disabled {
  background: var(--bg-disabled);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .voice-settings-tab {
    padding: var(--spacing-md);
  }
  
  .voice-cards {
    grid-template-columns: 1fr;
  }
  
  .settings-actions {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .save-btn, .reset-btn {
    width: 100%;
  }
  
  /* 紧凑布局响应式 */
  .voice-cards-compact {
    grid-template-columns: 1fr;
  }
  
  .settings-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .settings-actions-compact {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .save-btn-compact, .reset-btn-compact {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .voice-settings-tab {
    padding: var(--spacing-sm);
  }
  
  .settings-section {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }
  
  .settings-section.compact {
    padding: var(--spacing-sm);
  }
  
  .voice-card, .voice-card-compact {
    padding: var(--spacing-sm);
  }
  
  .settings-actions, .settings-actions-compact {
    margin-top: var(--spacing-sm);
  }
}

/* 加载状态 */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
}

.loading::after {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-light);
  border-top: 2px solid var(--accent-primary);
  border-radius: var(--border-radius-full);
  animation: spin 1s linear infinite;
  margin-left: var(--spacing-sm);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
/* 简化语音设置页动画与风格（统一为标准卡片样式） */
.voice-settings-tab {
  background: var(--bg-secondary) !important;
  box-shadow: var(--shadow-md) !important;
  backdrop-filter: none !important;
}

.voice-settings-tab::before,
.voice-settings-tab::after,
.settings-section::before,
.settings-section::after,
.test-voice-btn::before,
.save-btn::before,
.reset-btn::before,
.test-voice-btn-compact::before,
.save-btn-compact::before,
.reset-btn-compact::before {
  content: none !important;
}

.message,
.settings-section,
.voice-card,
.voice-card.selected,
.slider::before,
.slider::-webkit-slider-thumb:hover,
.slider::-moz-range-thumb:hover,
.loading::after {
  animation: none !important;
}

.settings-section {
  backdrop-filter: none !important;
}

.settings-section:hover,
.voice-card:hover,
.voice-card-compact:hover,
.save-btn:hover,
.reset-btn:hover,
.test-voice-btn:hover:not(:disabled),
.test-voice-btn-compact:hover:not(:disabled),
.save-btn-compact:hover:not(:disabled),
.reset-btn-compact:hover:not(:disabled) {
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

/* 紧凑布局全面禁用动画与位移 */
.settings-section.compact {
  animation: none !important;
  backdrop-filter: none !important;
}

.voice-card-compact,
.voice-card-compact:hover,
.voice-card-compact.selected {
  animation: none !important;
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

.message.error,
.message.success {
  animation: none !important;
}

.slider-compact::-webkit-slider-thumb:hover,
.slider-compact::-moz-range-thumb:hover {
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

/* 主题为星云白/极光白时，确保保存按钮与白底有足够对比 */
.voice-settings-tab .save-btn-compact,
.voice-settings-tab .save-btn {
  background: var(--primary-color) !important;
  color: #ffffff !important;
  border: 1px solid rgba(0, 0, 0, 0.06) !important;
  box-shadow: var(--shadow-md) !important;
}

body.nebula-light .voice-settings-tab .save-btn-compact,
body.nebula-light .voice-settings-tab .save-btn,
body.aurora-light .voice-settings-tab .save-btn-compact,
body.aurora-light .voice-settings-tab .save-btn {
  background: var(--accent-primary) !important;
  color: #ffffff !important;
}

.voice-settings-tab .save-btn-compact:hover:not(:disabled),
.voice-settings-tab .save-btn:hover:not(:disabled) {
  background: var(--accent-hover) !important;
  color: #ffffff !important;
}
.learning-heatmap {
  background: linear-gradient(135deg, var(--bg-secondary, #ffffff), var(--bg-tertiary, #f3f4f6));
  border-radius: var(--border-radius-lg, 12px);
  padding: var(--spacing-xl, 24px);
  margin: var(--spacing-lg, 20px) 0;
  box-shadow: var(--shadow-medium, 0 4px 12px rgba(0, 0, 0, 0.1));
  border: 1px solid var(--border-color, #e5e7eb);
  color: var(--text-primary, #1f2937);
  position: relative;
  overflow: hidden;
}

/* 修复提示裁剪与偏移：强制可见溢出与更高层级 */
.learning-heatmap { overflow: visible !important; }
.heatmap-track { overflow: visible !important; }
.heatmap-tooltip { z-index: 9999 !important; }

/* 头部样式 */
.heatmap-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl, 24px);
  position: relative;
  z-index: 2;
}

.heatmap-title {
  font-size: var(--font-size-xl, 1.25rem);
  font-weight: 600;
  margin: 0;
  color: var(--text-primary, #1f2937);
}

.heatmap-month-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.month-title {
  font-weight: 600;
}

.month-nav-buttons { display: flex; gap: 8px; }
.nav-btn {
  background: var(--bg-secondary, #f9fafb);
  border: 1px solid var(--border-color, #e5e7eb);
  color: var(--text-secondary, #6b7280);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.nav-btn:hover { background: var(--bg-tertiary, #f3f4f6); color: var(--text-primary, #1f2937); }

.period-btn {
  padding: var(--spacing-xs, 8px) var(--spacing-md, 16px);
  border: none;
  border-radius: var(--border-radius-sm, 6px);
  background: transparent;
  color: var(--text-secondary, #6b7280);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal, 0.3s) ease;
}

.period-btn:hover {
  color: var(--text-primary, #1f2937);
  background: var(--bg-tertiary, #f3f4f6);
}

.period-btn.active {
  background: var(--accent-primary, #3b82f6);
  color: white;
  box-shadow: var(--shadow-small, 0 2px 4px rgba(0, 0, 0, 0.1));
}

/* 工具提示样式 */
.heatmap-tooltip {
  position: fixed;
  background: var(--bg-tooltip, #1f2937);
  color: white;
  padding: var(--spacing-xs, 8px) var(--spacing-sm, 12px);
  border-radius: var(--border-radius-md, 8px);
  font-size: var(--font-size-sm, 0.875rem);
  pointer-events: none;
  z-index: 1000;
  border: 1px solid var(--border-color-dark, #374151);
  box-shadow: var(--shadow-large, 0 8px 32px rgba(0, 0, 0, 0.3));
  max-width: 200px;
  text-align: center;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.heatmap-tooltip::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: var(--bg-tooltip, #1f2937);
}

.heatmap-tooltip.visible { opacity: 1; transform: translateY(0); }
.heatmap-tooltip.hidden { opacity: 0; transform: translateY(-4px); }

/* 加载状态 */
.heatmap-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 120px;
  color: var(--text-secondary, #6b7280);
  font-size: var(--font-size-base, 1rem);
}

.heatmap-loading::after {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color, #e5e7eb);
  border-top: 2px solid var(--accent-primary, #3b82f6);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: var(--spacing-sm, 12px);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes heatmap-bar-rise {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* 错误状态 */
.heatmap-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl, 40px);
  text-align: center;
  position: relative;
  z-index: 2;
  background: var(--bg-error, #fef2f2);
  border-radius: var(--border-radius-lg, 12px);
  border: 1px solid var(--border-error, #fecaca);
}

.heatmap-error-icon {
  font-size: var(--font-size-2xl, 2rem);
  color: var(--text-error, #dc2626);
  margin-bottom: var(--spacing-md, 16px);
}

.heatmap-error-message {
  color: var(--text-error, #dc2626);
  font-size: var(--font-size-base, 1rem);
  font-weight: 500;
}

/* 热力图容器 */
.heatmap-container { position: relative; z-index: 2; }
.heatmap-track {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  height: 240px;
  overflow-x: hidden;
  padding: 20px;
  background: linear-gradient(180deg, var(--accent-primary-opacity, rgba(59,130,246,0.08)), transparent);
  border-radius: 12px;
}

.heatmap-bars::-webkit-scrollbar {
  height: 6px;
}

.heatmap-bars::-webkit-scrollbar-track {
  background: var(--bg-secondary, #f9fafb);
  border-radius: 3px;
}

.heatmap-bars::-webkit-scrollbar-thumb {
  background: var(--border-color, #e5e7eb);
  border-radius: 3px;
}

.heatmap-bars::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary, #6b7280);
}

.track-item {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  height: 200px;
}

.track-slot {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background-color: var(--bg-secondary, #f3f4f6);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 10px;
  position: relative;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06) inset;
}

.heatmap-bar-wrapper:hover {
  transform: translateY(-2px);
}

.track-fill {
  width: 100%;
  background: linear-gradient(180deg, var(--accent-primary, #3b82f6), #8b5cf6);
  border-radius: 10px 10px 4px 4px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

.heatmap-bar {
  width: 100%;
  border-radius: var(--border-radius-xs, 4px) var(--border-radius-xs, 4px) 0 0;
  transition: all var(--transition-normal, 0.3s) ease;
  position: relative;
  cursor: pointer;
  animation: heatmap-bar-rise 0.6s ease-out;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@keyframes heatmap-bar-rise {
  0% {
    height: 0;
    opacity: 0;
  }
  100% {
    height: var(--bar-height, 0);
    opacity: 1;
  }
}

.heatmap-bar:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.track-label {
  font-size: 0.8rem;
  color: var(--text-secondary, #6b7280);
}

/* 移除旧的静态提示气泡，改用跟随鼠标的横向提示 */

.heatmap-bar-value {
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--font-size-xs, 0.75rem);
  color: var(--text-primary, #1f2937);
  font-weight: 600;
  background: var(--bg-card, #ffffff);
  padding: 2px 6px;
  border-radius: var(--border-radius-xs, 4px);
  white-space: nowrap;
  border: 1px solid var(--border-color, #e5e7eb);
  box-shadow: var(--shadow-small, 0 2px 4px rgba(0, 0, 0, 0.1));
}

/* 图例 - 删除学习时长注释 */
.heatmap-legend {
  display: none; /* 隐藏图例，因为学习时长注释需要删除 */
}

/* 颜色变量 */
:root {
  --heatmap-empty: rgba(255, 255, 255, 0.1);
  --heatmap-light: #4facfe;
  --heatmap-medium: #00f2fe;
  --heatmap-heavy: #43e97b;
  --heatmap-max: #38f9d7;
}

/* 统计摘要 */
.heatmap-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  position: relative;
  z-index: 2;
}

.summary-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.summary-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.summary-label {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.summary-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .learning-heatmap {
    padding: 20px;
    margin: 16px 0;
  }
  
  .heatmap-header {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  
  .heatmap-title {
    font-size: 1.3rem;
    text-align: center;
  }
  
  .heatmap-period-selector {
    justify-content: center;
  }
  
  .period-btn {
    padding: 6px 12px;
    font-size: 0.85rem;
  }
  
  .heatmap-bars {
    height: 150px;
    gap: 4px;
  }
  
  .heatmap-bar-wrapper {
    min-width: 35px;
  }
  
  .heatmap-bar-label {
    font-size: 0.75rem;
  }
  
  .heatmap-legend {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .legend-items {
    gap: 8px;
  }
  
  .legend-item {
    font-size: 0.75rem;
  }
  
  .heatmap-summary {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .learning-heatmap {
    padding: 16px;
  }
  
  .heatmap-container {
    padding: 16px;
  }
  
  .heatmap-bars {
    height: 120px;
    gap: 2px;
  }
  
  .heatmap-bar-wrapper {
    min-width: 30px;
  }
  
  .heatmap-bar-label {
    font-size: 0.7rem;
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }
  
  .period-btn {
    padding: 4px 8px;
    font-size: 0.8rem;
  }
  
  .summary-item {
    padding: 12px;
  }
  
  .summary-value {
    font-size: 1.1rem;
  }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
  .learning-heatmap {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-color: rgba(255, 255, 255, 0.1);
  }
  
  .heatmap-title {
    background: linear-gradient(45deg, #fff, #e0e0e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  :root {
    --heatmap-empty: rgba(255, 255, 255, 0.05);
    --heatmap-light: #4facfe;
    --heatmap-medium: #00f2fe;
    --heatmap-heavy: #43e97b;
    --heatmap-max: #38f9d7;
  }
}

/* 动画效果 */
@keyframes heatmap-fade-in {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.learning-heatmap {
  animation: heatmap-fade-in 0.6s ease-out;
}

/* 特殊效果 */
.heatmap-bar {
  position: relative;
  overflow: hidden;
}

.heatmap-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.heatmap-bar-wrapper:hover .heatmap-bar::after {
  left: 100%;
}.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease-out;
}

.modal-content.personal-info-modal {
  background-color: var(--bg-card);
  width: 90%;
  max-width: 480px;
  /* 减小宽度 */
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
  /* 限制最大高度 */
  overflow: hidden;
  /* 防止外层滚动 */
  border: 1px solid var(--border-color);
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
  flex-shrink: 0;
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
  line-height: 1;
}

.close-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body.compact-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
  /* 内容区滚动 */
}

/* Profile Header Section */
.profile-header.compact-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.avatar-container {
  position: relative;
  width: 64px;
  height: 64px;
  cursor: default;
  /* 默认不可点击 */
}

.avatar-container.editable {
  cursor: pointer;
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-upload-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
  color: white;
  font-size: 0.7rem;
  text-align: center;
}

.avatar-container.editable:hover .avatar-upload-overlay {
  opacity: 1;
}

.profile-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.display-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.2;
}

.edit-name-group {
  margin-bottom: 0.25rem;
}

.name-input {
  width: 100%;
  padding: 0.25rem 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.name-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.tags-container {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.role-tag,
.level-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.4;
}

.role-tag {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

.level-tag {
  background: var(--gradient-primary);
  color: white;
}

.level-tag.free {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.edit-profile-btn {
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.edit-profile-btn:hover {
  background: var(--bg-tertiary);
}

/* Info Grid Section */
.info-grid.compact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* 3列紧凑布局 */
  gap: 0.75rem;
}

.info-card {
  background-color: var(--bg-secondary);
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.info-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.15rem;
}

.info-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Signature Section */
.signature-section.compact-signature {
  background-color: var(--bg-secondary);
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  flex-grow: 1;
  /* 填充剩余空间 */
  min-height: 80px;
  display: flex;
  flex-direction: column;
}

.section-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.signature-display {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.signature-input {
  width: 100%;
  height: 80px;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  resize: none;
  font-family: inherit;
  font-size: 0.9rem;
}

.signature-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
}

/* Modal Actions Footer */
.personal-info-modal .modal-actions.compact-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
  flex-shrink: 0;
  gap: 1rem;
}

.personal-info-modal .action-group {
  display: flex;
  gap: 0.5rem;
}

.personal-info-modal .btn {
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.85rem;
  border: 1px solid transparent;
}

.personal-info-modal .btn-primary {
  background: var(--primary-color);
  color: white;
}

.personal-info-modal .btn-primary:hover {
  filter: brightness(1.1);
}

.personal-info-modal .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.personal-info-modal .btn-secondary:hover {
  background-color: var(--border-color);
}

.personal-info-modal .btn-danger-ghost {
  background: transparent;
  color: var(--color-error);
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-error);
}

.personal-info-modal .btn-danger-ghost:hover {
  background-color: var(--color-error);
  color: white;
  text-decoration: none;
}

/* Edit Profile Button */
.personal-info-modal .edit-profile-btn {
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  outline: none;
  box-shadow: none;
}

.personal-info-modal .edit-profile-btn:hover {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 2px 4px rgba(var(--primary-color-rgb), 0.2);
}

/* 明亮主题下的特殊样式 */
.light .personal-info-modal .btn-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--btn-secondary-text) !important;
  border-color: var(--btn-secondary-border);
}

.light .personal-info-modal .btn-secondary:hover {
  background-color: var(--btn-secondary-hover-bg);
  border-color: var(--btn-secondary-hover-border);
}

.light .personal-info-modal .edit-profile-btn {
  background-color: transparent;
  color: var(--primary-color) !important;
  border-color: var(--primary-color);
}

.light .personal-info-modal .edit-profile-btn:hover {
  background-color: var(--primary-color) !important;
  color: white !important;
}

.light .personal-info-modal .btn-danger-ghost {
  background-color: transparent;
  color: var(--color-error) !important;
  border-color: var(--color-error);
  opacity: 1;
}

.light .personal-info-modal .btn-danger-ghost:hover {
  background-color: var(--color-error) !important;
  color: white !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .modal-content.personal-info-modal {
    width: 95%;
    max-height: 90vh;
  }

  .info-grid.compact-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .info-card {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
  }

  .info-label {
    margin-bottom: 0;
  }

  .modal-actions.compact-footer {
    flex-direction: column-reverse;
    gap: 0.75rem;
    padding: 1rem;
  }

  .action-group {
    width: 100%;
    justify-content: space-between;
  }

  .btn {
    flex: 1;
    text-align: center;
  }

  .btn-danger-ghost {
    width: auto;
    font-size: 0.85rem;
  }
}.vocabulary-page {
  min-height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

.vocabulary-header-container {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  padding: 1.5rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.vocabulary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.vocabulary-tabs {
  display: flex;
  background-color: var(--bg-primary);
  border-radius: 12px;
  padding: 4px;
  border: 1px solid var(--border-primary);
}

.tab-btn {
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.tab-btn.active {
  background-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(var(--accent-primary-rgb), 0.3);
}

.tab-btn:hover:not(.active) {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.header-left h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.vocabulary-stats {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.vocabulary-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-select {
  padding: 0.5rem 2rem 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
  min-width: 130px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  transition: all 0.2s ease;
}

.filter-select:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.1);
}

.filter-divider {
  width: 1px;
  height: 24px;
  background-color: var(--border-primary);
  margin: 0 0.5rem;
}

.sort-order-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-primary);
  background-color: var(--bg-primary);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-primary);
  font-weight: bold;
  transition: all 0.2s ease;
}

.sort-order-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--bg-secondary);
}

.reset-btn {
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.reset-btn:hover {
  color: var(--accent-primary);
  background-color: rgba(var(--accent-primary-rgb), 0.05);
}

.vocabulary-content {
  padding: 2rem;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  flex: 1;
}

.error-banner {
  margin-bottom: 1.5rem;
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
}

.error-banner.error {
  background: #fef2f2;
  border: 1px solid #fee2e2;
  color: #ef4444;
}

.error-banner.success {
  background: #ecfdf5;
  border: 1px solid #d1fae5;
  color: #10b981;
}

.error-banner.warning {
  background: #fffbeb;
  border: 1px solid #fef3c7;
  color: #f59e0b;
}

.pagination-container {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}.sentence-list-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.sentence-list-header {
  margin-bottom: 24px;
}

.sentence-list-header h1 {
  font-size: 28px;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.sentence-list-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* 操作栏 */
.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  gap: 8px !important;
}

/* 搜索框 */
.search-container {
  flex: 2 !important;
  max-width: 600px !important;
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb, 0, 123, 255), 0.1);
}

/* 创建按钮 */
.create-btn {
  padding: 12px 16px !important;
  font-size: 14px !important;
  font-weight: 500;
  white-space: nowrap !important;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  border: 1px solid var(--accent-primary-dark);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.create-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-primary-dark) 0%, var(--accent-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(77, 171, 247, 0.3);
}

.create-btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* 表格容器样式 */
.sentence-table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  background-color: var(--bg-secondary);
  margin-bottom: 24px;
  position: relative;
  border: 1px solid var(--border-color);
  transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.sentence-table-container:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

/* 表格头部装饰 */
.sentence-table-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
  border-radius: 12px 12px 0 0;
}

/* 表格样式 */
.sentence-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.sentence-table th,
.sentence-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.sentence-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 2px solid var(--primary-color);
}

.sentence-table tr {
  transition: background-color 0.2s ease;
}

.sentence-table tr:hover {
  background-color: var(--bg-hover);
}

.sentence-table tr:last-child td {
  border-bottom: none;
}

/* 表格内容单元格优化 */
.sentence-table td:first-child {
  font-weight: 600;
  color: var(--primary-color);
  min-width: 60px;
}

.sentence-table td:nth-child(2) {
  max-width: 300px;
  word-wrap: break-word;
}

.sentence-table td:nth-child(3) {
  max-width: 250px;
  word-wrap: break-word;
  color: var(--text-secondary);
  font-style: italic;
}

.sentence-table td:last-child {
  min-width: 150px;
  text-align: center;
  padding: 4px;
}

/* 句子内容 */
.sentence-content {
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
}

.sentence-translation {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
  font-style: italic;
}

/* 操作按钮 */
.action-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.btn {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  border-color: var(--accent-primary-dark);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-primary-dark) 0%, var(--accent-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(77, 171, 247, 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-hover) 100%);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-card) 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-info {
  background: linear-gradient(135deg, var(--info-color, #17a2b8) 0%, var(--info-hover, #138496) 100%);
  color: white;
  border-color: var(--info-hover, #138496);
}

.btn-info:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--info-hover, #138496) 0%, #0d6efd 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(13, 110, 253, 0.3);
}

.btn-small {
  padding: 4px 8px;
  font-size: 11px;
}

.btn-edit {
  background: linear-gradient(135deg, var(--warning-color, #ffc107) 0%, var(--warning-hover, #e0a800) 100%);
  color: white;
  border-color: var(--warning-hover, #e0a800);
}

.btn-edit:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--warning-hover, #e0a800) 0%, #d39e00 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(255, 193, 7, 0.3);
}

.btn-delete {
  background: linear-gradient(135deg, var(--error-color, #dc3545) 0%, var(--error-hover, #c82333) 100%);
  color: white;
  border-color: var(--error-hover, #c82333);
}

.btn-delete:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--error-hover, #c82333) 0%, #bd2130 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(220, 53, 69, 0.3);
}

/* 按钮组样式 */
.action-buttons .btn {
  flex: 0 0 auto;
  min-width: 60px;
}

/* 编辑模态框 */
.edit-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.edit-modal {
  background-color: white;
  border-radius: 12px;
  padding: 32px;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.edit-modal h2 {
  font-size: 24px;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  resize: vertical;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* 三级联动选择器样式 */
.three-level-selector-container {
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.three-level-selector-container h3 {
  margin-top: 0;
  margin-bottom: 20px;
  color: #333;
  font-size: 18px;
  border-bottom: 1px solid #e9ecef;
  padding-bottom: 10px;
}

.selected-sentence-actions {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid #e9ecef;
}

/* 深色主题按钮样式优化 */
.dark .sentence-table .btn {
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.dark .sentence-table .btn::before {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

/* 白天主题按钮样式优化 */
.light .sentence-table .action-buttons .btn {
  border: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.light .sentence-table .action-buttons .btn::before {
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
}

.light .sentence-table .action-buttons .btn-primary {
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  color: white !important;
  border-color: #0056b3;
}

.light .sentence-table .action-buttons .btn-primary:hover {
  background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.light .sentence-table .action-buttons .btn-secondary {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  color: #333 !important;
  border-color: #ced4da;
}

.light .sentence-table .action-buttons .btn-secondary:hover {
  background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.light .sentence-table .action-buttons .btn-info {
  background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
  color: white !important;
  border-color: #138496;
}

.light .sentence-table .action-buttons .btn-info:hover {
  background: linear-gradient(135deg, #138496 0%, #117a8b 100%);
  box-shadow: 0 4px 12px rgba(23, 162, 184, 0.3);
}

.light .sentence-table .action-buttons .btn-edit {
  background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
  color: #212529 !important;
  border-color: #e0a800;
}

.light .sentence-table .action-buttons .btn-edit:hover {
  background: linear-gradient(135deg, #e0a800 0%, #d39e00 100%);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

.light .sentence-table .action-buttons .btn-delete {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white !important;
  border-color: #c82333;
}

.light .sentence-table .action-buttons .btn-delete:hover {
  background: linear-gradient(135deg, #c82333 0%, #bd2130 100%);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.dark .sentence-table .btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  border-color: var(--accent-primary-dark);
}

.dark .sentence-table .btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-primary-dark) 0%, var(--accent-primary) 100%);
  box-shadow: 0 4px 12px rgba(77, 171, 247, 0.4);
}

.dark .sentence-table .btn-secondary {
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-hover) 100%);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.dark .sentence-table .btn-secondary:hover {
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-card) 100%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.dark .sentence-table .btn-info {
  background: linear-gradient(135deg, var(--info-color) 0%, var(--info-hover) 100%);
  color: white;
  border-color: var(--info-hover);
}

.dark .sentence-table .btn-info:hover {
  background: linear-gradient(135deg, var(--info-hover) 0%, #0d6efd 100%);
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.4);
}

.dark .sentence-table .btn-edit {
  background: linear-gradient(135deg, var(--warning-color) 0%, var(--warning-hover) 100%);
  color: white;
  border-color: var(--warning-hover);
}

.dark .sentence-table .btn-edit:hover {
  background: linear-gradient(135deg, var(--warning-hover) 0%, #e0a800 100%);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.4);
}

.dark .sentence-table .btn-delete {
  background: linear-gradient(135deg, var(--error-color) 0%, var(--error-hover) 100%);
  color: white;
  border-color: var(--error-hover);
}

.dark .sentence-table .btn-delete:hover {
  background: linear-gradient(135deg, var(--error-hover) 0%, #c82333 100%);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

/* 按钮组样式优化 */
.sentence-table .action-buttons {
  display: flex;
  gap: 2px;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
}

.sentence-table .action-buttons .btn {
  flex: 0 1 auto;
  padding: 2px 4px;
  font-size: 9px;
  min-width: 40px;
  max-width: 60px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .three-level-selector-container {
    padding: 15px;
  }
  
  .selected-sentence-actions {
    text-align: center;
  }
  
  .selected-sentence-actions .btn {
    width: 100%;
    max-width: 300px;
  }
  
  /* 表格响应式优化 */
  .sentence-table-container {
    border-radius: 8px;
    margin-bottom: 16px;
  }
  
  .sentence-table th,
  .sentence-table td {
    padding: 10px 12px;
    font-size: 14px;
  }
  
  .sentence-table th {
    font-size: 12px;
  }
  
  .sentence-table td:last-child {
    min-width: auto;
  }
  
  .sentence-table .action-buttons {
    flex-direction: row;
    gap: 2px;
    flex-wrap: nowrap;
  }
  
  .sentence-table .action-buttons .btn {
    width: auto;
    padding: 2px 4px;
    font-size: 9px;
    min-width: 40px;
  }
  
  .btn-small {
  padding: 4px 8px;
  font-size: 12px;
  color: var(--text-primary);
}
}

@media (max-width: 480px) {
  .sentence-table-container {
    border-radius: 6px;
  }
  
  .sentence-table th,
  .sentence-table td {
    padding: 8px 10px;
    font-size: 13px;
  }
  
  .sentence-table th {
    font-size: 11px;
    letter-spacing: 0.2px;
  }
  
  .sentence-table td:first-child {
    min-width: 40px;
  }
  
  .sentence-table td:nth-child(2),
  .sentence-table td:nth-child(3) {
    max-width: 150px;
  }
}

/* 分页组件样式 */
.pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  padding: 16px;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  flex-wrap: wrap;
  gap: 16px;
}

.pagination-info {
  font-size: 14px;
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 200px;
  white-space: nowrap;
}

.page-info {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  padding: 0 8px;
  min-width: 80px;
  text-align: center;
}

.page-size-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-size-select {
  padding: 6px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  min-width: 60px;
}

.page-size-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb, 0, 123, 255), 0.1);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state h3 {
  font-size: 20px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 16px;
  margin-bottom: 24px;
}

/* 加载和错误状态 */
.loading-container,
.error-container {
  padding: 40px 20px;
  text-align: center;
}

.error-message {
  color: var(--danger-color);
  font-size: 16px;
  margin-bottom: 16px;
  padding: 12px;
  background-color: var(--danger-bg);
  border-radius: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .sentence-list-container {
    padding: 16px;
  }
  
  .action-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-container {
    max-width: 100%;
  }
  
  .create-btn {
    width: 100%;
  }
  
  .sentence-table {
    display: block;
    overflow-x: auto;
  }
  
  .action-buttons {
    flex-direction: row;
    gap: 2px;
    flex-wrap: nowrap;
  }
  
  .edit-modal {
    padding: 24px;
    margin: 16px;
  }
  
  .modal-actions {
    flex-direction: column;
  }
  
  .modal-actions button {
    width: 100%;
  }
}.admin-course-list-page {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e0e0e0;
}

.page-header h1 {
  font-size: 28px;
  font-weight: 600;
  color: #1f2937;
  margin: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-container {
  position: relative;
}

.search-input {
  padding: 8px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  width: 300px;
  transition: border-color 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.create-btn {
  background: #10b981;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.create-btn:hover {
  background: #059669;
}

.loading-container,
.error-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #f3f4f6;
  border-top: 3px solid #3b82f6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.error-container p {
  color: #ef4444;
  margin-bottom: 16px;
}

.retry-btn {
  background: #3b82f6;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
}

.course-table-container {
  background: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.course-table {
  width: 100%;
  border-collapse: collapse;
}

.course-table th {
  background: #f8fafc;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: #374151;
  border-bottom: 1px solid #e5e7eb;
}

.course-table td {
  padding: 16px;
  border-bottom: 1px solid #f3f4f6;
}

.course-table tr:hover {
  background: #f9fafb;
}

.course-title strong {
  display: block;
  font-size: 16px;
  color: #1f2937;
  margin-bottom: 4px;
}

.course-description {
  font-size: 14px;
  color: #6b7280;
  display: block;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag {
  background: #e0f2fe;
  color: #0369a1;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.no-tags {
  color: #9ca3af;
  font-style: italic;
}

.action-buttons {
  display: flex;
  gap: 8px;
}

.edit-btn {
  background: #3b82f6;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.edit-btn:hover {
  background: #2563eb;
}

.delete-btn {
  background: #ef4444;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.delete-btn:hover {
  background: #dc2626;
}

.empty-state {
  padding: 40px;
  text-align: center;
  color: #6b7280;
}

.clear-search-btn {
  background: #3b82f6;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  margin-top: 8px;
  cursor: pointer;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .admin-course-list-page {
    padding: 16px;
  }
  
  .page-header {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  
  .header-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .search-input {
    width: 100%;
  }
  
  .course-table {
    font-size: 14px;
  }
  
  .course-table th,
  .course-table td {
    padding: 8px 12px;
  }
  
  .action-buttons {
    flex-direction: column;
    gap: 4px;
  }
}/* 管理员订单管理页面样式 */
.admin-orders-container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px 24px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  box-sizing: border-box;
}

/* 页面头部 */
.page-header {
  margin-bottom: 30px;
}

.page-header h1 {
  font-size: 2.5rem;
  color: var(--text-primary, #333);
  margin-bottom: 10px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary, #666);
}

/* 错误消息 */
.error-message {
  text-align: center;
  padding: 60px 20px;
  background: var(--error-bg, #fff3f3);
  border: 1px solid var(--error-border, #ffcdd2);
  border-radius: 10px;
  margin-top: 50px;
}

.error-message h2 {
  color: var(--color-error, #d32f2f);
  margin-bottom: 15px;
}

.error-message p {
  color: var(--text-secondary, #666);
  font-size: 1.1rem;
}

/* 过滤区域 */
.filters-section {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 30px;
}

.filter-controls {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-controls label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-weight: 500;
  color: var(--text-primary, #333);
}

.filter-controls input,
.filter-controls select {
  padding: 8px 12px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 4px;
  font-size: 0.9rem;
  background: var(--bg-secondary, #ffffff);
  color: var(--text-primary, #333);
  outline: none;
  transition: border-color 0.3s ease;
}

.filter-controls input:focus,
.filter-controls select:focus {
  border-color: var(--accent-primary, #667eea);
}

/* 统计数据区域 */
.stats-section {
  margin-bottom: 30px;
}

.stats-section h2 {
  font-size: 1.8rem;
  color: var(--text-primary, #333);
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border-color, #e0e0e0);
  padding-bottom: 10px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.05));
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 5px 15px rgba(0, 0, 0, 0.1));
}

.stat-value {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--accent-primary, #667eea);
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary, #666);
  font-weight: 500;
}

/* 通用区域 */
.section {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 30px;
}

/* 图表容器 */
.chart-container {
  width: 100%;
  height: 300px;
  min-height: 300px;
  position: relative;
}

/* 表格容器 - 响应式设计 */
.table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.section h2 {
  font-size: 1.8rem;
  color: var(--text-primary, #333);
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border-color, #e0e0e0);
  padding-bottom: 10px;
}

/* 简单表格 */
.simple-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-secondary, #ffffff);
  color: var(--text-primary, #333);
}

.simple-table th,
.simple-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.simple-table th {
  background: var(--bg-tertiary, #f8f9fa);
  font-weight: 600;
  color: var(--text-primary, #333);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.simple-table tbody tr:hover {
  background: var(--bg-hover, #f8f9fa);
}

.simple-table tbody tr:last-child td {
  border-bottom: none;
}

/* 订单明细表格 */
.orders-table th,
.orders-table td {
  padding: 10px 12px;
  font-size: 0.85rem;
}

.orders-table .status {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-created {
  background: #fff3cd;
  color: #856404;
}

.status-paid {
  background: #d4edda;
  color: #155724;
}

.status-failed {
  background: #f8d7da;
  color: #721c24;
}

.status-canceled {
  background: #e2e3e5;
  color: #383d41;
}

/* 操作按钮 */
button {
  padding: 6px 12px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--bg-secondary, #ffffff);
  color: var(--text-primary, inherit);
}

button:hover:not(:disabled) {
  background: var(--bg-hover, #f8f9fa);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button[danger] {
  color: var(--color-error, #dc3545);
  border-color: var(--color-error, #dc3545);
}

button[danger]:hover:not(:disabled) {
  background: var(--color-error, #dc3545);
  color: var(--text-inverse, #ffffff);
}

/* 分页控件 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px 0;
  gap: 10px;
}

.pagination button {
  padding: 8px 16px;
  border: 1px solid var(--border-color, #ddd);
  background: var(--bg-secondary, #ffffff);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pagination button:hover:not(:disabled) {
  background: var(--bg-hover, #f8f9fa);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination span {
  font-weight: 500;
  color: var(--text-primary, #333);
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary, #666);
}

/* 空数据状态 */
.empty-data {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary, #666);
  font-style: italic;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .admin-page-container {
    width: calc(100% - 200px) !important;
    margin: 0 100px !important;
    padding: 15px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
  }
  
  .filter-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-controls label {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .admin-page-container {
    width: calc(100% - 40px) !important;
    margin: 0 20px !important;
    padding: 10px;
  }
  
  .page-header h1 {
    font-size: 2rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .stat-card {
    padding: 15px;
  }
  
  .stat-value {
    font-size: 2rem;
  }
  
  .simple-table th,
  .simple-table td {
    padding: 8px 10px;
    font-size: 0.8rem;
  }
  
  .pagination {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-controls {
    flex-direction: column;
    gap: 10px;
  }
  
  .filter-controls label {
    width: 100%;
  }
}

/* 深色模式适配 */
.dark .section { background: var(--bg-card); border: 1px solid var(--border-color); }
.dark .section h2 { color: var(--text-primary); border-bottom: 2px solid var(--border-color); }
.dark .simple-table { background: var(--bg-secondary); color: var(--text-primary); }
.dark .simple-table th { background: var(--bg-tertiary); color: var(--text-primary); border-bottom: 1px solid var(--border-color); }
.dark .simple-table td { color: var(--text-secondary); border-bottom: 1px solid var(--border-color); }
.dark .simple-table tbody tr:hover { background: var(--bg-hover); }
.dark .pagination span { color: var(--text-primary); }
.dark button { background: var(--bg-tertiary); color: var(--text-primary); border-color: var(--border-color); }
.dark button:hover:not(:disabled) { background: var(--bg-hover); }

/* 赛博朋克夜间主题适配 */
.cyberpunk-dark .section { background: var(--bg-card); border: 1px solid var(--border-color); }
.cyberpunk-dark .section h2 { color: var(--text-primary); border-bottom: 2px solid var(--border-color); }
.cyberpunk-dark .simple-table { background: var(--bg-secondary); color: var(--text-primary); }
.cyberpunk-dark .simple-table th { background: var(--bg-tertiary); color: var(--text-primary); border-bottom: 1px solid var(--border-color); }
.cyberpunk-dark .simple-table td { color: var(--text-secondary); border-bottom: 1px solid var(--border-color); }
.cyberpunk-dark .simple-table tbody tr:hover { background: var(--bg-hover); }
.cyberpunk-dark .pagination span { color: var(--text-primary); }
.cyberpunk-dark button { background: var(--bg-tertiary); color: var(--text-primary); border-color: var(--border-color); }
.cyberpunk-dark button:hover:not(:disabled) { background: var(--bg-hover); }
/* 佣金管理页面容器：铺满屏幕 */
.admin-commission-container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px 24px;
  box-sizing: border-box;
}

/* 复用订单页面的结构类（filters-section/section/simple-table等）由 AdminOrdersPage.css 提供 */
/* 忘记密码页面样式 */
.forgot-password-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: #f5f5f5;
  padding: 1rem;
}

.forgot-password-page-header {
  text-align: center;
  margin-bottom: 2rem;
}

.forgot-password-page-header h1 {
  color: #333;
  margin-bottom: 0.5rem;
  font-size: 2rem;
}

.forgot-password-page-header p {
  color: #666;
  font-size: 1.1rem;
}.register-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.register-page-header {
  text-align: center;
  margin-bottom: 30px;
  color: white;
}

.register-page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.register-page-header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

@media (max-width: 768px) {
  .register-page {
    padding: 10px;
  }
  
  .register-page-header h1 {
    font-size: 2rem;
  }
  
  .register-page-header p {
    font-size: 1rem;
  }
}.dashboard-view {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px;
  height: 100vh;
  box-sizing: border-box;
  overflow: hidden;
  /* Ensure no scrollbars on the main view on desktop */
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes goldPulse {

  0%,
  100% {
    box-shadow:
      0 0 0 3px rgba(255, 215, 0, 0.3),
      0 6px 18px rgba(255, 215, 0, 0.4),
      inset 0 1px 0 rgba(255, 255, 255, 0.3);
  }

  50% {
    box-shadow:
      0 0 0 3px rgba(255, 215, 0, 0.5),
      0 10px 28px rgba(255, 215, 0, 0.6),
      inset 0 1px 0 rgba(255, 255, 255, 0.5);
  }
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: 1.5fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
  gap: 16px;
  align-items: stretch;
  height: calc(100vh - 32px);
}

/* Staggered Entrance Animations */
.dashboard-grid>* {
  animation: fadeInUp 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
}

.promo-column.promo-a {
  animation-delay: 0.05s;
}

.promo-column.promo-b {
  animation-delay: 0.1s;
}

.left-column {
  animation-delay: 0.15s;
}

.middle-column {
  animation-delay: 0.2s;
}

.heatmap-wide {
  animation-delay: 0.25s;
}

.right-column {
  animation-delay: 0.3s;
}

/* Grid Placements (Unchanged) */
.promo-column.promo-a {
  grid-column: 1 / span 4;
  grid-row: 1 / span 1;
}

.promo-column.promo-b {
  grid-column: 5 / span 4;
  grid-row: 1 / span 1;
}

.right-column {
  grid-column: 9 / span 4;
  grid-row: 1 / span 5;
}

.left-column {
  grid-column: 1 / span 5;
  grid-row: 2 / span 4;
}

.middle-column {
  grid-column: 6 / span 3;
  grid-row: 2 / span 4;
}

.heatmap-wide {
  grid-column: 1 / span 12;
  grid-row: 6 / span 3;
}

/* Common Card Styles & Glassmorphism */
.dashboard-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.glass-card-base {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}

/* Dark mode border adjustment */
[data-theme='dark'] .glass-card-base {
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.glass-card-base:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

/* Promo Cards - Updated to match glass-card style */
.promo-card {
  /* Inherit glass-card-base properties but reset some specifics if needed */
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  /* Remove padding here, let inner container handle it or keep it */
  height: 100%;
  width: 100%;
  overflow: hidden;
  /* Override base background if we want a subtle tint */
  background: var(--bg-secondary);
}

.promo-card.clickable {
  cursor: pointer;
}

.promo-card:hover {
  /* Enhance the hover effect from glass-card-base */
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 0, 0, 0.1);
}

.promo-content-row {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  gap: 12px;
}

.promo-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.promo-card:hover .promo-icon-box {
  transform: scale(1.1) rotate(5deg);
}

.promo-icon-box.gold {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  color: #ea580c;
}

.promo-icon-box.blue {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: #2563eb;
}

.promo-text-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  /* Text truncation support */
}

.promo-main-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

/* New Plans Module Styles */
.plans-module-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  height: 100%;
  min-height: 84px;
  align-items: center;
  /* Ensure alignment with other cards */
}

.plan-card {
  /* Inherits glass-card-base */
  padding: 12px 14px;
  display: flex;
  align-items: center;
  height: 100%;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.plan-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.1);
  background: var(--bg-tertiary);
}

.plan-content {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  z-index: 1;
  height: 100%;
}

.plan-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.plan-card:hover .plan-icon-box {
  transform: scale(1.05) rotate(5deg);
}

.plan-icon-box.blue-gradient {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: #2563eb;
  border: 1px solid #bfdbfe;
}

.plan-icon-box.pink-gradient {
  background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
  color: #db2777;
  border: 1px solid #fbcfe8;
}

.plan-text-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  flex: 1;
}

.plan-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.plan-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.9;
}

.plan-link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.plan-link-row+.plan-link-row {
  margin-top: 6px;
}

.promo-link-btn {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--accent-primary);
  background: var(--accent-primary);
  color: #fff;
  font-size: 12px;
}

.promo-sub-title {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.highlight-tag {
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 4px;
  background: #fff7ed;
  color: #c2410c;
  border: 1px solid #ffedd5;
  font-weight: 600;
}

.highlight-tag.blue {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #dbeafe;
}

.promo-arrow {
  color: var(--text-tertiary);
  transition: transform 0.3s ease, color 0.3s ease;
}

.promo-card:hover .promo-arrow {
  transform: translateX(4px);
  color: var(--text-primary);
}

/* Remove old styles that conflict or are unused */
.promo-card.gradient-a,
.promo-card.gradient-b,
.promo-head,
.promo-title,
.promo-em,
.promo-limit,
.promo-time {
  display: none;
  /* Or remove them entirely if you prefer clean up */
}

.promo-badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  white-space: nowrap;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.promo-badge.orange {
  background: linear-gradient(90deg, #f97316, #fb923c);
  border: none;
  color: var(--text-inverse);
}

.promo-badge.red {
  background: linear-gradient(90deg, #ef4444, #f43f5e);
  border: none;
  color: white;
}

.promo-tags {
  display: none;
}

.promo-tags .tag {
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.promo-desc {
  display: none;
}

.promo-action {
  display: none;
}

/* Stats Panels (Left Column) */
.left-column .panel-group {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.panel-group {
  /* Inherits glass-card-base via class or manual properties below */
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
}

.panel-group:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.panel-icon {
  color: var(--primary-color);
}

.panel-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1.05rem;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  flex: 1;
  align-content: stretch;
}

.panel-card {
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: all 0.2s ease;
  height: 100%;
  box-sizing: border-box;
}

.panel-card:hover {
  background: var(--bg-hover, #f3f4f6);
  transform: translateY(-2px);
}

.panel-card.primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-primary-dark, #2563eb));
  color: white;
  box-shadow: 0 4px 12px rgba(var(--primary-color-rgb, 37, 99, 235), 0.3);
}

.panel-card.primary:hover {
  transform: translateY(-2px) scale(1.02);
}

.panel-card-title {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 8px;
  font-weight: 500;
}

.panel-card-value {
  font-size: 1.1rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* Welcome Banner (Middle Column) */
.middle-column {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.welcome-banner {
  background: linear-gradient(135deg, var(--primary-color), #4f46e5, #7c3aed);
  background-size: 200% 200%;
  border-radius: 20px;
  padding: 24px;
  color: white;
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  align-items: center;
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
  transition: all 0.3s ease;
}

.welcome-banner.morning {
  background: linear-gradient(135deg, #f59e0b, #ea580c, #db2777);
  box-shadow: 0 10px 30px rgba(234, 88, 12, 0.3);
}

.welcome-banner.evening {
  background: linear-gradient(135deg, #312e81, #4338ca, #6366f1);
  box-shadow: 0 10px 30px rgba(49, 46, 129, 0.4);
}

.welcome-banner:hover {
  transform: scale(1.005);
}

/* Glass overlay for banner */
.welcome-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  transform: rotate(30deg);
  pointer-events: none;
}

.banner-content {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.banner-top-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.banner-main-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-bottom: 12px;
}

.banner-quote {
  font-size: 0.95rem;
  opacity: 0.9;
  margin-top: 8px;
  line-height: 1.4;
  font-style: italic;
}

.banner-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.share-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(4px);
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

.welcome-banner h1 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.calendar-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: fit-content;
}

.cal-date {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
}

.cal-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cal-month {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  opacity: 0.9;
}

.cal-week {
  font-size: 0.75rem;
  opacity: 0.8;
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  width: fit-content;
}

.streak-badge .flame-icon {
  color: #fbbf24;
  fill: #fbbf24;
  filter: drop-shadow(0 0 4px rgba(251, 191, 36, 0.5));
}

.start-practice-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: white;
  color: var(--primary-color);
  border: none;
  padding: 16px 20px;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  position: relative;
  overflow: hidden;
  margin-top: 0;
}

.start-practice-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
}

.start-practice-btn:active {
  transform: translateY(-1px);
}

.btn-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.btn-title {
  font-size: 1.2rem;
  font-weight: 800;
}

.btn-subtitle {
  font-size: 0.9rem;
  opacity: 0.7;
  font-weight: 500;
}

/* Hidden Share Card Container */
.dashboard-share-card-container {
  position: fixed;
  top: -9999px;
  left: -9999px;
  width: 480px;
  /* height will be auto */
  background: var(--gradient-primary);
  border-radius: 24px;
  padding: 32px;
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.dashboard-share-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.dashboard-share-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
}

.dashboard-share-date {
  text-align: right;
  opacity: 0.8;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dashboard-share-user-section {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.dashboard-share-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1.2rem;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.dashboard-share-user-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dashboard-share-username {
  font-size: 1.1rem;
  font-weight: 600;
}

.dashboard-share-action-text {
  font-size: 0.95rem;
  opacity: 0.7;
}

.dashboard-share-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.dashboard-share-stat-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dashboard-share-stat-label {
  font-size: 0.8rem;
  opacity: 0.7;
}

.dashboard-share-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.dashboard-share-quote-section {
  margin-bottom: 40px;
}

.dashboard-share-quote-en {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}

.dashboard-share-quote-cn {
  font-size: 1rem;
  opacity: 0.8;
}

.dashboard-share-footer {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dashboard-share-footer-text h4 {
  margin: 0 0 4px 0;
  font-size: 1rem;
}

.dashboard-share-footer-text p {
  margin: 0;
  font-size: 0.8rem;
  opacity: 0.7;
}

.dashboard-share-footer-text .dashboard-share-site {
  opacity: 1;
  font-weight: 700;
}

.dashboard-share-qr {
  width: 64px;
  height: 64px;
  background: white;
  border-radius: 8px;
  padding: 4px;
}

/* Right Column: Leaderboard */
.right-column {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.right-column:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.column-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.trophy-icon {
  color: #fbbf24;
  fill: #fbbf24;
  filter: drop-shadow(0 2px 4px rgba(251, 191, 36, 0.4));
}

.period-badge {
  font-size: 0.75rem;
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: 12px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Leaderboard Layout */
.leaderboard-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  gap: 16px;
}

/* Podium Styles - Premium Redesign */
.leaderboard-podium {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 20px;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  min-height: 120px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
  border-radius: 12px;
  margin: 6px 0;
  position: relative;
  overflow: hidden;
}

.podium-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  padding: 12px 10px 10px;
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
}

.podium-item:hover {
  transform: translateY(-6px) scale(1.02);
  z-index: 10;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Rank 1 - Center, Largest */
.podium-item.rank-1 {
  order: 2;
  width: 34%;
  margin-bottom: 12px;
  transform: scale(1.05);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 160, 0, 0.1));
  border: 1px solid rgba(255, 215, 0, 0.3);
}

/* Rank 2 - Left */
.podium-item.rank-2 {
  order: 1;
  width: 33%;
  margin-right: 8px;
  background: linear-gradient(135deg, rgba(192, 192, 192, 0.15), rgba(128, 128, 128, 0.1));
  border: 1px solid rgba(192, 192, 192, 0.3);
}

/* Rank 3 - Right */
.podium-item.rank-3 {
  order: 3;
  width: 33%;
  margin-left: 8px;
  background: linear-gradient(135deg, rgba(205, 127, 50, 0.15), rgba(139, 69, 19, 0.1));
  border: 1px solid rgba(205, 127, 50, 0.3);
}

.podium-avatar-wrapper {
  position: relative;
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
}

/* Base Avatar Container */
.podium-avatar {
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3px;
  position: relative;
  background-clip: border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
  animation: none;
}

/* Rank 1 Styling - Premium Gold */
.rank-1 .podium-avatar {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #FFD700 0%, #FFA000 50%, #FF8F00 100%);
  box-shadow:
    0 0 0 3px rgba(255, 215, 0, 0.3),
    0 6px 18px rgba(255, 215, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  position: relative;
  animation: goldPulse 3s ease-in-out infinite;
}

/* Rank 2 Styling - Premium Silver */
.rank-2 .podium-avatar {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #F5F5F5 0%, #E0E0E0 50%, #BDBDBD 100%);
  box-shadow:
    0 0 0 3px rgba(192, 192, 192, 0.3),
    0 5px 15px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  position: relative;
}

/* Rank 3 Styling - Premium Bronze */
.rank-3 .podium-avatar {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #D2691E 0%, #CD7F32 50%, #8B4513 100%);
  box-shadow:
    0 0 0 3px rgba(205, 127, 50, 0.3),
    0 5px 15px rgba(139, 69, 19, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
}

/* Avatar Image/Content */
.podium-avatar-image,
.podium-avatar .avatar-image,
.podium-avatar .avatar-default {
  width: 100% !important;
  height: 100% !important;
  border-radius: 50% !important;
  border: 2px solid #fff;
  background: var(--bg-secondary);
  object-fit: cover;
  box-sizing: border-box;
  display: block;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.podium-crown {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 22px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
  animation: float 4s ease-in-out infinite;
  z-index: 5;
  text-shadow: none;
}

.podium-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  color: white;
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.2),
    0 3px 10px rgba(0, 0, 0, 0.3);
  z-index: 2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.rank-1 .podium-badge {
  background: linear-gradient(135deg, #FFD700, #FFA000, #FF8F00);
  box-shadow:
    0 0 0 3px rgba(255, 215, 0, 0.2),
    0 4px 12px rgba(255, 215, 0, 0.4);
}

.rank-2 .podium-badge {
  background: linear-gradient(135deg, #E0E0E0, #BDBDBD, #9E9E9E);
  box-shadow:
    0 0 0 3px rgba(192, 192, 192, 0.2),
    0 4px 12px rgba(0, 0, 0, 0.25);
}

.rank-3 .podium-badge {
  background: linear-gradient(135deg, #D2691E, #CD7F32, #8B4513);
  box-shadow:
    0 0 0 3px rgba(205, 127, 50, 0.2),
    0 4px 12px rgba(139, 69, 19, 0.3);
}

.podium-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.podium-name {
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-primary);
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 4px;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.podium-level {
  font-size: 0.6rem;
  color: var(--text-secondary);
  background: transparent;
  padding: 1px 6px;
  border-radius: 8px;
  font-weight: 500;
  display: inline-block;
  border: none;
}

.podium-score {
  font-weight: 700;
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  text-shadow: none;
  background: transparent;
  padding: 2px 8px;
  border-radius: 10px;
  border: none;
}

/* Enhanced Rank 1 Effects */
.rank-1 {
  border: none;
  background: transparent;
  position: relative;
}

.rank-1::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, #FFD700, #FFA000, #FF8F00);
  border-radius: 18px;
  z-index: -1;
  animation: goldPulse 3s ease-in-out infinite;
  opacity: 0.6;
}

.rank-1 .podium-avatar {
  animation: none;
}

/* Scrollable List Styles */
.leaderboard-list-scroll {
  flex: 1;
  overflow-y: auto;
  padding-right: 2px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 4px;
}

/* Custom Scrollbar */
.leaderboard-list-scroll::-webkit-scrollbar {
  width: 4px;
}

.leaderboard-list-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.leaderboard-list-scroll::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.leaderboard-list-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

.leaderboard-list-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  padding: 8px 10px;
  border-radius: 12px;
  background: var(--bg-tertiary);
  transition: all 0.2s ease;
  border: 1px solid transparent;
  cursor: default;
}

.leaderboard-list-item:hover {
  background: var(--bg-hover);
  transform: translateX(2px);
  border-color: rgba(0, 0, 0, 0.05);
}

.list-rank {
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-align: center;
}

.list-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 4px;
  overflow: hidden;
}

.list-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #e0e7ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-color);
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

.list-avatar .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.list-avatar .avatar-default {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.list-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.list-name {
  font-weight: 600;
  font-size: 0.85rem;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-level {
  font-size: 0.65rem;
  color: var(--text-secondary);
}

.list-score {
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-primary);
  opacity: 0.8;
  white-space: nowrap;
}

@keyframes float {

  0%,
  100% {
    transform: translate(-50%, 0);
  }

  50% {
    transform: translate(-50%, -6px);
  }
}

/* Responsive Breakpoints - Moved to bottom to override base styles */
@media (max-width: 1200px) {
  .dashboard-view .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    height: auto;
    overflow: visible;
    display: flex;
    flex-direction: column;
  }

  .dashboard-view {
    height: auto;
    overflow-y: auto;
    padding-bottom: 80px;
    /* Space for bottom nav if any */
  }

  /* Reset grid placements for flex layout */
  .dashboard-view .promo-column.promo-a,
  .dashboard-view .promo-column.promo-b,
  .dashboard-view .left-column,
  .dashboard-view .middle-column,
  .dashboard-view .heatmap-wide,
  .dashboard-view .right-column {
    grid-column: auto;
    grid-row: auto;
    width: 100%;
  }

  /* Adjust specific component heights */
  .dashboard-view .left-column {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .dashboard-view .left-column .panel-group {
    min-width: 300px;
  }
}

@media (max-width: 768px) {
  .dashboard-view {
    padding: 12px;
  }

  .dashboard-view .dashboard-grid {
    gap: 16px;
  }

  .promo-content-row {
    padding: 12px 16px;
  }

  /* Adjust banner */
  .welcome-banner {
    padding: 20px;
    min-height: auto;
  }

  .banner-top-row {
    margin-bottom: 8px;
  }

  .banner-main-text h1 {
    font-size: 1.4rem;
  }

  .cal-date {
    font-size: 1.4rem;
  }

  /* Stack panels vertically */
  .dashboard-view .left-column {
    flex-direction: column;
  }

  .panel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .panel-group {
    width: 100%;
  }

  .share-stats-grid {
    grid-template-columns: 1fr;
  }

  /* Leaderboard adjustments */
  .leaderboard-podium {
    padding-bottom: 12px;
  }

  .podium-item.rank-1 {
    width: 38%;
  }

  .podium-item.rank-2,
  .podium-item.rank-3 {
    width: 31%;
  }
}

@media (max-width: 480px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .promo-icon-box {
    width: 40px;
    height: 40px;
  }

  .promo-main-title {
    font-size: 0.95rem;
  }
}

/* Visibility Helpers for Heatmap Switching */
.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

@media (max-width: 1200px) {
  .dashboard-view .desktop-only {
    display: none;
  }

  .dashboard-view .mobile-only {
    display: block;
  }
}

/* Loading Animation */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-spin {
  animation: spin 1s linear infinite;
}

.start-practice-btn.disabled {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
  background: #f3f4f6; /* Optional: Light gray background for disabled state */
  color: #9ca3af; /* Optional: Gray text */
}
.variant-block-grid .vg-grid {
  display: grid;
  grid-template-columns: repeat(14, 1fr);
  gap: 6px;
}

@media (max-width: 480px) {
  .variant-block-grid .vg-grid {
    grid-template-columns: repeat(7, 1fr);
  }
}

.variant-block-grid .vg-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.variant-block-grid .vg-cell:hover {
  transform: scale(1.1);
  z-index: 1;
}

.variant-block-grid .vg-cell.lvl-1 {
  background: rgba(59, 130, 246, 0.15);
}

.variant-block-grid .vg-cell.lvl-2 {
  background: rgba(59, 130, 246, 0.3);
}

.variant-block-grid .vg-cell.lvl-3 {
  background: rgba(59, 130, 246, 0.5);
}

.variant-block-grid .vg-cell.lvl-4 {
  background: rgba(59, 130, 246, 0.7);
}

.variant-block-grid .vg-header,
.vh-header,
.va-header,
.vr-header,
.vc-header,
.vhx-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.variant-block-grid .vg-nav button,
.vh-nav button,
.va-nav button,
.vr-nav button,
.vc-nav button,
.vhx-nav button {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.variant-horizontal-bars .vh-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.variant-horizontal-bars .vh-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  align-items: center;
  gap: 8px;
}

.variant-horizontal-bars .vh-bar {
  background: var(--bg-tertiary);
  height: 16px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.variant-horizontal-bars .vh-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-primary-dark, #2563eb));
}

.variant-horizontal-bars .vh-label {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.variant-area-sparkline .va-chart {
  display: block;
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
}

.variant-radial-bars .vr-chart {
  display: block;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.variant-circular-ring .vc-chart {
  display: block;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.variant-hexbin .vhx-chart {
  display: block;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.yearly-block-heatmap {
  display: grid;
  gap: 12px;
  height: 100%;
  width: 100%;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  padding: 20px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
}

.yb-months {
  display: grid;
  grid-auto-flow: column;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  width: 100%;
  padding-left: 2px;
}

.yb-month {
  justify-self: start;
}

.yb-grid {
  display: grid;
  gap: 4px;
  width: 100%;
  height: 100%;
}

.yb-week {
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: auto;
}

.yb-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.yb-cell.lvl-1 {
  background: rgba(var(--primary-color-rgb, 59, 130, 246), 0.18);
  border-color: rgba(var(--primary-color-rgb, 59, 130, 246), 0.25);
}

.yb-cell.lvl-2 {
  background: rgba(var(--primary-color-rgb, 59, 130, 246), 0.35);
  border-color: rgba(var(--primary-color-rgb, 59, 130, 246), 0.4);
}

.yb-cell.lvl-3 {
  background: rgba(var(--primary-color-rgb, 59, 130, 246), 0.55);
  border-color: rgba(var(--primary-color-rgb, 59, 130, 246), 0.55);
}

.yb-cell.lvl-4 {
  background: rgba(var(--primary-color-rgb, 59, 130, 246), 0.85);
  border-color: rgba(var(--primary-color-rgb, 59, 130, 246), 0.7);
  box-shadow: 0 0 8px rgba(var(--primary-color-rgb, 59, 130, 246), 0.6), 0 0 16px rgba(var(--primary-color-rgb, 59, 130, 246), 0.35);
}

body.light .yb-cell.lvl-1 {
  background: rgba(76, 29, 149, 0.20);
  border-color: rgba(76, 29, 149, 0.30);
}

body.light .yb-cell.lvl-2 {
  background: rgba(76, 29, 149, 0.38);
  border-color: rgba(76, 29, 149, 0.45);
}

body.light .yb-cell.lvl-3 {
  background: rgba(76, 29, 149, 0.58);
  border-color: rgba(76, 29, 149, 0.60);
}

body.light .yb-cell.lvl-4 {
  background: rgba(76, 29, 149, 0.92);
  border-color: rgba(76, 29, 149, 0.75);
  box-shadow: 0 0 10px rgba(76, 29, 149, 0.55), 0 0 18px rgba(76, 29, 149, 0.35);
}

body.aurora-light .yb-cell.lvl-1 {
  background: rgba(76, 29, 149, 0.20);
  border-color: rgba(76, 29, 149, 0.30);
}

body.aurora-light .yb-cell.lvl-2 {
  background: rgba(76, 29, 149, 0.38);
  border-color: rgba(76, 29, 149, 0.45);
}

body.aurora-light .yb-cell.lvl-3 {
  background: rgba(76, 29, 149, 0.58);
  border-color: rgba(76, 29, 149, 0.60);
}

body.aurora-light .yb-cell.lvl-4 {
  background: rgba(76, 29, 149, 0.92);
  border-color: rgba(76, 29, 149, 0.75);
  box-shadow: 0 0 10px rgba(76, 29, 149, 0.55), 0 0 18px rgba(76, 29, 149, 0.35);
}

body.cyberpunk-dark .yb-cell.lvl-1 {
  background: rgba(0, 245, 255, 0.20);
  border-color: rgba(0, 245, 255, 0.30);
}

body.cyberpunk-dark .yb-cell.lvl-2 {
  background: rgba(0, 245, 255, 0.38);
  border-color: rgba(0, 245, 255, 0.45);
}

body.cyberpunk-dark .yb-cell.lvl-3 {
  background: rgba(0, 245, 255, 0.58);
  border-color: rgba(0, 245, 255, 0.60);
}

body.cyberpunk-dark .yb-cell.lvl-4 {
  background: rgba(0, 245, 255, 0.92);
  border-color: rgba(0, 245, 255, 0.75);
  box-shadow: 0 0 12px rgba(0, 245, 255, 0.7), 0 0 20px rgba(0, 245, 255, 0.45);
}

.yb-loading {
  margin-top: 8px;
  color: var(--text-secondary);
}.heatmap-demo {
  padding: 24px;
}

.demo-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0 0 8px 0;
}

.demo-subtitle {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.demo-note { color: var(--text-secondary); }

.heatmap-demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
}

.variant-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
}

.variant-label {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

/* A · 玻璃渐变 */
.variant-a {}

/* B · 霓虹夜色 */
.variant-b {}

/* C · 极简扁平 */
.variant-c {}

/* D · 极光色带 */
.variant-d {}

/* E · 紧凑微条 */
.variant-e {}

/* F · 日历风格 */
.variant-f {}
.redeem-user-container {
  padding: 32px 40px;
  color: var(--text-primary);
  max-width: var(--bp-lg);
}
.page-title { font-size: var(--font-size-xl); margin-bottom: var(--gutter-sm); }
.notice { margin-top: var(--gutter-sm); margin-bottom: var(--gutter-sm); color: var(--text-secondary); background: var(--bg-tertiary); border: 1px solid var(--border-color); border-radius: 12px; padding: 8px 12px; }
.redeem-inputs { display: flex; gap: var(--gutter-sm); flex-wrap: wrap; }
.form-input {
  flex: 1;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
}
.form-input:focus { outline: none; border-color: var(--accent-primary); }
.btn { padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-tertiary); color: var(--text-primary); }
.btn-primary { background: var(--accent-primary); color: var(--text-inverse); border-color: var(--accent-primary-dark); }
.btn[disabled] { opacity: 0.7; cursor: not-allowed; }
.card { margin-top: var(--gutter-sm); border: 1px solid var(--border-color); border-radius: 12px; padding: var(--gutter-sm); background: var(--bg-card); box-shadow: var(--shadow-small); }
.error-banner { margin-top: var(--gutter-sm); border: 1px solid var(--color-error); background: color-mix(in srgb, var(--color-error), white 90%); color: var(--color-error); border-radius: 8px; padding: 8px 12px; }
.badge-type { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--accent-primary); color: var(--text-inverse); font-size: var(--font-size-sm); }

.modal-backdrop { position: fixed; inset: 0; background: color-mix(in srgb, var(--bg-overlay, rgba(0,0,0,0.6)), transparent 0%); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal { width: 360px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: var(--shadow-medium); padding: var(--gutter-md); color: var(--text-primary); }
.modal-title { font-size: var(--font-size-lg); margin-bottom: 8px; }
.modal-content { color: var(--text-secondary); margin-bottom: var(--gutter-sm); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--gutter-sm); }

@media (max-width: 768px) {
  .redeem-user-container { padding: 24px; }
  .redeem-inputs { flex-direction: column; }
  .btn { width: 100%; }
}
:root {
  --redeem-radius: 12px;
}

.redeem-admin-container {
  padding: 24px 28px;
  color: var(--text-primary);
  max-width: var(--bp-xl);
}

.page-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--gutter-sm);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--redeem-radius);
  box-shadow: var(--shadow-medium);
  padding: var(--gutter-sm);
  margin-bottom: var(--gutter-sm);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--gutter-sm);
}

.section-title {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
}

.link {
  color: var(--accent-primary);
  text-decoration: none;
}
.link:hover { text-decoration: underline; }

.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--gutter-sm);
  align-items: start;
}

@media (max-width: 1024px) {
  .two-col-grid { grid-template-columns: 1fr; }
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gutter-sm);
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--gutter-sm);
  margin-bottom: var(--gutter-sm);
}

@media (max-width: 900px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .filters-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 600px) {
  .form-grid, .filters-grid { grid-template-columns: 1fr; }
}

.form-item { display: flex; flex-direction: column; }
.form-label { color: var(--text-secondary); margin-bottom: 6px; font-size: var(--font-size-sm); }
.form-input, .form-select, .code-textarea {
  width: 100%;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
}
.form-input:focus, .form-select:focus, .code-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-primary) 20%, transparent);
}

.actions { margin-top: var(--gutter-sm); display: flex; gap: var(--gutter-sm); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
}
.btn-sm { padding: 6px 10px; font-size: var(--font-size-sm); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--accent-primary); color: var(--text-inverse); border-color: var(--accent-primary-dark); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-danger { background: var(--color-error); color: var(--text-inverse); border-color: var(--color-error); }
.btn-danger:hover { filter: brightness(1.05); }

.codes-output { margin-top: var(--gutter-sm); }
.hint { color: var(--text-secondary); margin-bottom: 6px; }
.code-textarea { min-height: 120px; font-family: var(--font-family-mono); resize: vertical; }

.table-wrapper { overflow: auto; max-height: 60vh; }
.table {
  width: 100%;
  border-collapse: collapse;
}
.table th, .table td {
  border-bottom: 1px solid var(--border-color);
  padding: 10px 8px;
  text-align: left;
}
.table thead th { color: var(--text-secondary); font-size: var(--font-size-sm); }
.mono { font-family: var(--font-family-mono); letter-spacing: 0.5px; }

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-color);
}
.badge-success { background: var(--success-light, #138a55); color: var(--text-inverse); }
.badge-info { background: var(--info-light, #2b6cb0); color: var(--text-inverse); }
.badge-warning { background: var(--color-warning); color: var(--text-inverse); }
.badge-danger { background: var(--color-error); color: var(--text-inverse); }

.badge-type-monthly { background: var(--accent-secondary, #6c5ce7); color: var(--text-inverse); }
.badge-type-yearly { background: var(--primary-hover, #0ea5e9); color: var(--text-inverse); }
.badge-type-lifetime { background: var(--accent-primary); color: var(--text-inverse); }
.badge-type-initialPartner { background: color-mix(in srgb, var(--accent-primary), #ffd54f 35%); color: var(--text-inverse); }
/* 科幻高雅风格主题 - 白天模式 */

/* 应用白天主题 */
body.light {
  /* 主要背景色 */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  
  /* 文本颜色 */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-accent: #0f172a;
  
  /* 主要强调色 - 科技蓝 */
  --accent-primary: #3b82f6;
  --accent-primary-light: #60a5fa;
  --accent-primary-dark: #2563eb;
  
  /* 主要颜色 - 用于选中状态 */
  --primary-color: #3b82f6;
  --primary-color-rgb: 59, 130, 246;
  
  /* 次要强调色 - 紫色 */
  --accent-secondary: #8b5cf6;
  --accent-secondary-light: #a78bfa;
  --accent-secondary-dark: #7c3aed;
  
  /* 成功/错误/警告色 */
  --color-success: #10b981;
  --success-color: #10b981;
  --success-color-dark: #059669;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  
  /* 边框和分割线 */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  --gradient-hover: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(59, 130, 246, 0.3);
  --text-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
  
  /* 缺失的全局变量 - 与深色主题保持一致 */
  --text-inverse: #ffffff;
  --bg-disabled: #f1f5f9;
  --bg-hover: #f8fafc;
  --bg-overlay: rgba(248, 250, 252, 0.9);
  --text-tertiary: #94a3b8;
  --text-disabled: #cbd5e1;
  --accent-hover: #2563eb;
  --accent-primary-opacity: rgba(59, 130, 246, 0.1);
  --accent-secondary-opacity: rgba(139, 92, 246, 0.1);
  --border-primary: #3b82f6;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.05);

  /* 按钮主题变量 */
  --btn-primary-bg: #3b82f6;
  --btn-primary-hover: #2563eb;
  --btn-primary-text: #ffffff;
  --btn-primary-border: #3b82f6;

  --btn-primary-disabled-bg: #93c5fd;
  --btn-primary-disabled-text: #ffffff;
  --btn-primary-disabled-border: #93c5fd;

  --btn-secondary-bg: #f8fafc;
  --btn-secondary-hover-bg: #eef2f7;
  --btn-secondary-text: #0f172a;
  --btn-secondary-border: #cbd5e1;
  --btn-secondary-hover-border: #cbd5e1;
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.light .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.light .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.light .btn {
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  color: white !important; /* 强制设置白色文字以确保在浅色主题下可见 */
}

.light .btn-primary {
  background: var(--gradient-primary);
  color: white !important;
  border-color: var(--accent-primary);
}

.light .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.light .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color);
}

.light .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

.light .btn-info {
  background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
  color: white !important;
  border-color: #138496;
}

.light .btn-info:hover {
  background: linear-gradient(135deg, #138496 0%, #117a8b 100%);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.light .btn-edit {
  background: linear-gradient(135deg, var(--color-warning) 0%, #e0a800 100%);
  color: white !important;
  border-color: #e0a800;
}

.light .btn-edit:hover {
  background: linear-gradient(135deg, #e0a800 0%, #d39e00 100%);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.light .btn-delete {
  background: linear-gradient(135deg, var(--color-error) 0%, #dc2626 100%);
  color: white !important;
  border-color: #dc2626;
}

.light .btn-delete:hover {
  background: linear-gradient(135deg, #dc2626 0%, #c82333 100%);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.light .btn-small {
  padding: 4px 8px;
  font-size: 11px;
  color: var(--text-primary);
}

/* 个人中心页面按钮样式 */
.light .profile-tab__save-btn {
  background: var(--success-color) !important;
  color: white !important;
  border: 1px solid var(--success-color-dark);
}

.light .profile-tab__save-btn:hover {
  background: var(--success-color-dark) !important;
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

/* 导航栏样式 */
.light .app-header {
  background: linear-gradient(90deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.light .app-header h1 {
  color: var(--text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 下拉菜单浅色主题样式 */
.light .dropdown-menu {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.light .dropdown-item {
  color: var(--text-secondary);
}

.light .dropdown-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-primary);
}

.light .dropdown-toggle {
  color: var(--text-secondary);
}

.light .dropdown-toggle:hover {
  color: var(--accent-primary);
}

/* 主内容区域样式 */
/* 保持基础布局的主内容顶部内边距，避免固定header覆盖内容 */
/* 删除对 .app-main 的顶部内边距清零，沿用基础样式 */

.light .nav-item {
  color: var(--text-secondary);
  position: relative;
}

.light .nav-item:hover {
  color: var(--accent-primary);
}

.light .nav-item.active {
  background: var(--accent-primary);
  color: white;
  font-weight: 600;
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  border: 2px solid rgba(59, 130, 246, 0.8);
  transform: translateY(-2px);
}

.light .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.light .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.light .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* 统计数据样式 */
.light .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  width: 8rem;
}

.light .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.light .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.light .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.light .close-btn {
  color: var(--text-secondary);
}

.light .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.1);
}

/* 课程卡片样式 */
.light .course-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.light .course-card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
  border-color: var(--accent-primary);
}

.light .course-card-header h3 {
  color: var(--text-primary);
  font-weight: 700;
}

.light .course-card-title {
  color: var(--text-primary);
}

.light .course-card-description {
  color: var(--text-secondary);
}

.light .course-card-meta {
  color: var(--text-secondary);
}

.light .course-card-tag {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

/* 练习类型标签 */
.light .word-practice {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
}

.light .phrase-practice {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.light .sentence-practice {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

/* 滚动条样式 */
.light ::-webkit-scrollbar {
  width: 8px;
}

.light ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.light ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.light ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}
/* 科幻高雅风格主题 - 夜间模式 */

/* 应用夜间主题 */
body.dark {
  /* 主要背景色 */
  --bg-primary: #0a0e1a;
  --bg-secondary: #141925;
  --bg-tertiary: #1e2433;
  --bg-card: #1a2332;
  --bg-disabled: #0f1420;
  --bg-hover: #252c3e;
  --bg-overlay: rgba(10, 14, 26, 0.8);
  
  /* 文本颜色 */
  --text-primary: #e0e6f0;
  --text-secondary: #a0a9b8;
  --text-muted: #707888;
  --text-accent: #ffffff;
  --text-inverse: #ffffff;
  --text-tertiary: #707888;
  --text-disabled: #4a5568;
  
  /* 主要强调色 - 科技蓝 */
  --accent-primary: #4dabf7;
  --accent-primary-light: #74c0fc;
  --accent-primary-dark: #339af0;
  --accent-hover: #339af0;
  --accent-primary-opacity: rgba(77, 171, 247, 0.1);
  
  /* 主要颜色 - 用于选中状态 */
  --primary-color: #4dabf7;
  --primary-color-rgb: 77, 171, 247;
  
  /* 次要强调色 - 紫色 */
  --accent-secondary: #9775fa;
  --accent-secondary-light: #b197fc;
  --accent-secondary-dark: #7950f2;
  --accent-success: #38a169;
  --accent-warning: #d69e2e;
  --accent-error: #e53e3e;
  
  /* 成功/错误/警告色 */
  --success-color: #51cf66;
  --success-hover: #40c057;
  --error-color: #ff6b6b;
  --error-hover: #ff5252;
  --error-bg: rgba(255, 107, 107, 0.1);
  --error-border: rgba(255, 107, 107, 0.2);
  --error-text: #ff6b6b;
  --warning-color: #ffd43b;
  --warning-hover: #ffcc02;
  --info-color: #4dabf7;
  --info-hover: #339af0;
  
  /* 头部样式 */
  --header-bg-color: #1a1a1a;
  --header-text-color: #ffffff;
  
  /* 边框和分割线 */
  --border-color: #2a3441;
  --border-light: #1f2937;
  --border-primary: #2a3441;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(77, 171, 247, 0.3);
  --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.3);
  
  /* 成功状态颜色 */
--success-light: rgba(76, 175, 80, 0.2);
--success-hover: rgba(76, 175, 80, 0.3);

/* 错误状态颜色 */
--error-light: rgba(244, 67, 54, 0.2);
--error-hover: rgba(244, 67, 54, 0.3);

/* 信息状态颜色 */
--info-light: rgba(33, 150, 243, 0.2);
--info-hover: rgba(33, 150, 243, 0.3);

/* 主色调悬停状态 */
--primary-hover: #1976d2;

/* 主色调浅色 */
--primary-light: rgba(33, 150, 243, 0.2);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #4dabf7 0%, #9775fa 100%);
  --gradient-secondary: linear-gradient(135deg, #9775fa 0%, #f06595 100%);
  --gradient-card: linear-gradient(145deg, #141925 0%, #0a0e1a 100%);
  --gradient-hover: linear-gradient(135deg, #339af0 0%, #7950f2 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(77, 171, 247, 0.5);
  --text-shadow: 0 0 10px rgba(77, 171, 247, 0.3);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.dark .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.dark .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
  background: linear-gradient(145deg, #1a2332 0%, #0f1420 100%);
}

/* 按钮样式 */
.dark .btn-primary {
  background: var(--gradient-primary);
  color: var(--text-accent);
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.dark .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.dark .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.dark .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.dark .app-header {
  background: linear-gradient(90deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.dark .app-header h1 {
  color: var(--text-primary);
  text-shadow: var(--text-shadow);
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* 下拉菜单深色主题样式 */
.dark .dropdown-menu {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.dark .dropdown-item {
  color: var(--text-secondary);
}

.dark .dropdown-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-primary);
}

.dark .dropdown-toggle {
  color: var(--text-secondary);
}

.dark .dropdown-toggle:hover {
  color: var(--accent-primary);
}

/* 主内容区域样式 */
/* 保持基础布局的主内容顶部内边距，避免固定header覆盖内容 */
/* 删除对 .app-main 的顶部内边距清零，沿用基础样式 */

.dark .nav-item {
  color: var(--text-secondary);
  position: relative;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  border: 1px solid transparent;
}

.dark .nav-item:hover {
  color: var(--accent-primary);
  background-color: rgba(77, 171, 247, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(77, 171, 247, 0.2);
  border-color: rgba(77, 171, 247, 0.3);
}

.dark .nav-item.active {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-primary-dark) 100%);
  color: white;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(77, 171, 247, 0.5);
  border: 1px solid rgba(77, 171, 247, 0.5);
  transform: translateY(-1px);
}

.dark .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.dark .input-field {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.dark .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(77, 171, 247, 0.2);
}

/* 统计数据样式 */
.dark .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  width: 8rem;
}

.dark .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.dark .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.dark .close-btn {
  color: var(--text-secondary);
}

.dark .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(255, 107, 107, 0.1);
}

/* 课程卡片样式已移至courseStyles.css中统一定义 */

/* 练习类型标签 */
.dark .word-practice {
  background-color: rgba(77, 171, 247, 0.2);
  color: var(--accent-primary);
}

.dark .phrase-practice {
  background-color: rgba(81, 207, 102, 0.2);
  color: var(--color-success);
}

.dark .sentence-practice {
  background-color: rgba(255, 212, 59, 0.2);
  color: var(--color-warning);
}

/* 滚动条样式 */
.dark ::-webkit-scrollbar {
  width: 8px;
}

.dark ::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

.dark ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.dark ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}/* 科幻高雅风格主题 - 赛博朋克夜间模式 */
body.cyberpunk-dark {
  /* 主要背景色 */
  --bg-primary: #050a15;
  --bg-secondary: #0d1117;
  --bg-tertiary: #161b22;
  --bg-card: #0d1117;
  
  /* 文本颜色 */
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #656d76;
  --text-accent: #ffffff;
  
  /* 主要强调色 - 霓虹粉 */
  --accent-primary: #ff006e;
  --accent-primary-light: #ff3385;
  --accent-primary-dark: #cc0058;
  
  /* 次要强调色 - 电光蓝 */
  --accent-secondary: #58a6ff;
  --accent-secondary-light: #79c0ff;
  --accent-secondary-dark: #1f6feb;
  
  /* 成功/错误/警告色 */
  --color-success: #3fb950;
  --color-error: #ff006e;
  --color-warning: #d29922;
  
  /* 边框和分割线 */
  --border-color: #30363d;
  --border-light: #21262d;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 20px rgba(255, 0, 110, 0.4);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #ff006e 0%, #58a6ff 100%);
  --gradient-card: linear-gradient(145deg, #0d1117 0%, #050a15 100%);
  --gradient-hover: linear-gradient(135deg, #cc0058 0%, #1f6feb 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(255, 0, 110, 0.5);
  --text-shadow: 0 0 10px rgba(255, 0, 110, 0.3);

  --primary-color: #58a6ff;
  --primary-color-rgb: 88, 166, 255;
  
  /* 缺失的全局变量 */
  --text-inverse: #ffffff;
  --bg-disabled: #161b22;
  --bg-hover: #1e2433;
  --bg-overlay: rgba(5, 10, 21, 0.95);
  --text-tertiary: #8b949e;
  --text-disabled: #656d76;
  --accent-hover: #cc0058;
  --accent-primary-opacity: rgba(255, 0, 110, 0.1);
  --accent-secondary-opacity: rgba(88, 166, 255, 0.1);
  --border-primary: #ff006e;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.5);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.cyberpunk-dark .gradient-text {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: var(--text-shadow);
}

/* 卡片样式 */
.cyberpunk-dark .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.cyberpunk-dark .card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.cyberpunk-dark .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.cyberpunk-dark .btn-primary {
  background: var(--gradient-primary);
  color: var(--text-accent);
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.cyberpunk-dark .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.cyberpunk-dark .btn-primary:hover::before {
  left: 100%;
}

.cyberpunk-dark .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.cyberpunk-dark .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.cyberpunk-dark .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.cyberpunk-dark .app-header {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

/* 主内容区域样式 */
/* 保持基础布局的主内容顶部内边距，避免固定header覆盖内容 */
/* 删除对 .app-main 的顶部内边距清零，沿用基础样式 */

.cyberpunk-dark .app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.cyberpunk-dark .nav-item {
  color: var(--text-secondary);
  position: relative;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  border: 1px solid transparent;
}

.cyberpunk-dark .nav-item:hover {
  color: var(--accent-primary);
  background-color: rgba(255, 0, 110, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 0, 110, 0.2);
  border-color: rgba(255, 0, 110, 0.3);
}

.cyberpunk-dark .nav-item.active {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(255, 0, 110, 0.4);
  border-color: rgba(255, 0, 110, 0.5);
}

.cyberpunk-dark .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.cyberpunk-dark .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  position: relative;
}

.cyberpunk-dark .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(255, 0, 110, 0.3);
}

/* 课程卡片标题样式 */
.cyberpunk-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.cyberpunk-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* 统计数据样式 */
.cyberpunk-dark .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 8rem;
}

.cyberpunk-dark .stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.cyberpunk-dark .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.cyberpunk-dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.cyberpunk-dark .modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

.cyberpunk-dark .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.cyberpunk-dark .close-btn {
  color: var(--text-secondary);
}

.cyberpunk-dark .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(255, 0, 110, 0.1);
}

/* 课程卡片样式已移至courseStyles.css中统一定义 */

/* 练习类型标签 */
.cyberpunk-dark .word-practice {
  background-color: rgba(255, 0, 110, 0.2);
  color: var(--accent-primary);
}

.cyberpunk-dark .phrase-practice {
  background-color: rgba(63, 185, 80, 0.2);
  color: var(--color-success);
}

.cyberpunk-dark .sentence-practice {
  background-color: rgba(210, 153, 34, 0.2);
  color: var(--color-warning);
}

/* 滚动条样式 */
.cyberpunk-dark ::-webkit-scrollbar {
  width: 8px;
}

.cyberpunk-dark ::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

.cyberpunk-dark ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.cyberpunk-dark ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}
/* 科幻高雅风格主题 - 极光白天模式 */

/* 应用极光白天主题 */
body.aurora-light {
  /* 主要背景色 */
  --bg-primary: #f8faff;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f4ff;
  --bg-card: #ffffff;

  /* 文本颜色 */
  --text-primary: #1a1f36;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-accent: #0d0d0d;

  /* 主要强调色 - 极光绿 */
  --accent-primary: #00d9ff;
  --accent-primary-light: #5ce1ff;
  --accent-primary-dark: #00b8d9;

  /* 主要颜色 - 用于选中状态 */
  --primary-color: #00d9ff;
  --primary-color-rgb: 0, 217, 255;

  /* 次要强调色 - 北极紫 */
  --accent-secondary: #7c3aed;
  --accent-secondary-light: #8b5cf6;
  --accent-secondary-dark: #6d28d9;

  /* 成功/错误/警告色 */
  --color-success: #10b981;
  --color-error: #f43f5e;
  --color-warning: #f59e0b;

  /* 边框和分割线 */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(0, 217, 255, 0.15);

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #7c3aed 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8faff 100%);
  --gradient-hover: linear-gradient(135deg, #00b8d9 0%, #6d28d9 100%);

  /* 特殊效果 */
  --glow-color: rgba(0, 217, 255, 0.3);
  --text-shadow: 0 0 10px rgba(0, 217, 255, 0.2);

  /* 缺失的全局变量 */
  --text-inverse: #ffffff;
  --bg-disabled: #f0f4ff;
  --bg-hover: #f8faff;
  --bg-overlay: rgba(248, 250, 255, 0.95);
  --text-tertiary: #a0aec0;
  --text-disabled: #cbd5e0;
  --accent-hover: #00b8d9;
  --accent-primary-opacity: rgba(0, 217, 255, 0.1);
  --accent-secondary-opacity: rgba(124, 58, 237, 0.1);
  --border-primary: #00d9ff;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.04);

  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.aurora-light .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.aurora-light .card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.aurora-light .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.aurora-light .btn-primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.aurora-light .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.aurora-light .btn-primary:hover::before {
  left: 100%;
}

.aurora-light .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.aurora-light .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.aurora-light .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.aurora-light .app-header {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.aurora-light .app-header h1 {
  color: var(--text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 主内容区域样式 */
.aurora-light .app-main {
  padding-top: 0; /* 移除之前设置的5rem向下偏移 */
}

.aurora-light .app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.aurora-light .nav-item {
  color: var(--text-secondary);
  position: relative;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  border: 1px solid transparent;
}

.aurora-light .nav-item:hover {
  color: var(--accent-primary);
  background-color: rgba(0, 217, 255, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 217, 255, 0.2);
  border-color: rgba(0, 217, 255, 0.3);
}

.aurora-light .nav-item.active {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0, 217, 255, 0.4);
  border-color: rgba(0, 217, 255, 0.5);
}

.aurora-light .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.aurora-light .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  position: relative;
}

.aurora-light .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.2);
}

/* 统计数据样式 */
.aurora-light .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 8rem;
}

.aurora-light .stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.aurora-light .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.aurora-light .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.aurora-light .modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

.aurora-light .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.aurora-light .close-btn {
  color: var(--text-secondary);
}

.aurora-light .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(244, 63, 94, 0.1);
}

/* 课程卡片样式 */
.aurora-light .course-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.aurora-light .course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.aurora-light .course-card:hover {
  box-shadow: var(--shadow-glow);
}

.aurora-light .course-card-header h3 {
  color: var(--text-primary);
}

.aurora-light .course-level {
  background: var(--gradient-primary);
  color: var(--text-accent);
}

.aurora-light .course-description {
  color: var(--text-secondary);
}

/* 练习类型标签 */
.aurora-light .word-practice {
  background-color: rgba(0, 217, 255, 0.1);
  color: var(--accent-primary);
}

.aurora-light .phrase-practice {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.aurora-light .sentence-practice {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

/* 滚动条样式 */
.aurora-light ::-webkit-scrollbar {
  width: 8px;
}

.aurora-light ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.aurora-light ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.aurora-light ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}/* 科幻高雅风格主题 - 极光夜间模式 */

/* 应用极光夜间主题 */
body.aurora-dark {
  /* 主要背景色 */
  --bg-primary: #0a0e27;
  --bg-secondary: #151933;
  --bg-tertiary: #1a1f3a;
  --bg-card: #1a1f3a;
  
  /* 文本颜色 */
  --text-primary: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --text-accent: #ffffff;
  
  /* 主要强调色 - 极光绿 */
  --accent-primary: #00d9ff;
  --accent-primary-light: #5ce1ff;
  --accent-primary-dark: #00b8d9;
  
  /* 主要颜色 - 用于选中状态 */
  --primary-color: #00d9ff;
  --primary-color-rgb: 0, 217, 255;
  
  /* 次要强调色 - 北极紫 */
  --accent-secondary: #7c3aed;
  --accent-secondary-light: #8b5cf6;
  --accent-secondary-dark: #6d28d9;
  
  /* 成功/错误/警告色 */
  --color-success: #10b981;
  --color-error: #f43f5e;
  --color-warning: #f59e0b;
  
  /* 边框和分割线 */
  --border-color: #2d3748;
  --border-light: #1a202c;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 20px rgba(0, 217, 255, 0.3);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #7c3aed 100%);
  --gradient-card: linear-gradient(145deg, #1a1f3a 0%, #151933 100%);
  --gradient-hover: linear-gradient(135deg, #00b8d9 0%, #6d28d9 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(0, 217, 255, 0.4);
  --text-shadow: 0 0 10px rgba(0, 217, 255, 0.3);
  
  /* 缺失的全局变量 */
  --text-inverse: #ffffff;
  --bg-disabled: #151933;
  --bg-hover: #1a1f3a;
  --bg-overlay: rgba(10, 14, 39, 0.9);
  --text-tertiary: #4a5568;
  --text-disabled: #2d3748;
  --accent-hover: #00b8d9;
  --accent-primary-opacity: rgba(0, 217, 255, 0.1);
  --accent-secondary-opacity: rgba(124, 58, 237, 0.1);
  --border-primary: #00d9ff;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.25);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.aurora-dark .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.aurora-dark .card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.aurora-dark .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.aurora-dark .btn-primary {
  background: var(--gradient-primary);
  color: var(--text-accent);
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.aurora-dark .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.aurora-dark .btn-primary:hover::before {
  left: 100%;
}

.aurora-dark .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.aurora-dark .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.aurora-dark .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.aurora-dark .app-header {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

/* 主内容区域样式 */
.aurora-dark .app-main {
  padding-top: 0; /* 移除之前设置的5rem向下偏移 */
}

.aurora-dark .app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.aurora-dark .nav-item {
  color: var(--text-secondary);
  position: relative;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  border: 1px solid transparent;
}

.aurora-dark .nav-item:hover {
  color: var(--accent-primary);
  background-color: rgba(0, 217, 255, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 217, 255, 0.2);
  border-color: rgba(0, 217, 255, 0.3);
}

.aurora-dark .nav-item.active {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0, 217, 255, 0.4);
  border-color: rgba(0, 217, 255, 0.5);
}

.aurora-dark .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.aurora-dark .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  position: relative;
}

.aurora-dark .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(0, 255, 255, 0.3);
}

/* 课程卡片标题样式 */
.aurora-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.aurora-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* 统计数据样式 */
.aurora-dark .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 8rem;
}

.aurora-dark .stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.aurora-dark .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.aurora-dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.aurora-dark .modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

.aurora-dark .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.aurora-dark .close-btn {
  color: var(--text-secondary);
}

.aurora-dark .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(244, 63, 94, 0.1);
}

/* 课程卡片样式已移至courseStyles.css中统一定义 */

/* 练习类型标签 */
.aurora-dark .word-practice {
  background-color: rgba(0, 217, 255, 0.15);
  color: var(--accent-primary);
}

.aurora-dark .phrase-practice {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.aurora-dark .sentence-practice {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

/* 滚动条样式 */
.aurora-dark ::-webkit-scrollbar {
  width: 8px;
}

.aurora-dark ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.aurora-dark ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.aurora-dark ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}/* 科幻高雅风格主题 - 星云白天模式 */

/* 应用星云白天主题 */
body.nebula-light {
  /* 主要背景色 */
  --bg-primary: #f8f9ff;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f2ff;
  --bg-card: #ffffff;
  
  /* 文本颜色 */
  --text-primary: #1a1f36;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-accent: #0d0d0d;
  
  /* 主要强调色 - 星云蓝 */
  --accent-primary: #4c1d95;
  --accent-primary-light: #6d28d9;
  --accent-primary-dark: #3730a3;
  
  /* 主要颜色 - 用于选中状态 */
  --primary-color: #4c1d95;
  --primary-color-rgb: 76, 29, 149;
  
  /* 次要强调色 - 宇宙粉 */
  --accent-secondary: #db2777;
  --accent-secondary-light: #ec4899;
  --accent-secondary-dark: #be185d;
  
  /* 成功/错误/警告色 */
  --color-success: #10b981;
  --color-error: #f43f5e;
  --color-warning: #f59e0b;
  
  /* 边框和分割线 */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(76, 29, 149, 0.15);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #4c1d95 0%, #db2777 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8f9ff 100%);
  --gradient-hover: linear-gradient(135deg, #3730a3 0%, #be185d 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(76, 29, 149, 0.3);
  --text-shadow: 0 0 10px rgba(76, 29, 149, 0.2);
  
  /* 缺失的全局变量 */
  --text-inverse: #ffffff;
  --bg-disabled: #f0f2ff;
  --bg-hover: #f8f9ff;
  --bg-overlay: rgba(248, 249, 255, 0.95);
  --text-tertiary: #a0aec0;
  --text-disabled: #cbd5e0;
  --accent-hover: #3730a3;
  --accent-primary-opacity: rgba(76, 29, 149, 0.1);
  --accent-secondary-opacity: rgba(219, 39, 119, 0.1);
  --border-primary: #4c1d95;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.04);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.nebula-light .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.nebula-light .card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.nebula-light .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.nebula-light .btn-primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nebula-light .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.nebula-light .btn-primary:hover::before {
  left: 100%;
}

.nebula-light .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.nebula-light .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.nebula-light .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.nebula-light .app-header {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.nebula-light .app-header h1 {
  color: var(--text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 主内容区域样式 */
.nebula-light .app-main {
  padding-top: 0; /* 移除之前设置的5rem向下偏移 */
}

.nebula-light .app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.nebula-light .nav-item {
  color: var(--text-secondary);
  position: relative;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  border: 1px solid transparent;
}

.nebula-light .nav-item:hover {
  color: var(--accent-primary);
  background-color: rgba(76, 29, 149, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(76, 29, 149, 0.2);
  border-color: rgba(76, 29, 149, 0.3);
}

.nebula-light .nav-item.active {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
  color: white;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(76, 29, 149, 0.4);
  border-color: rgba(76, 29, 149, 0.5);
}

.nebula-light .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.nebula-light .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  position: relative;
}

.nebula-light .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(76, 29, 149, 0.2);
}

/* 统计数据样式 */
.nebula-light .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 8rem;
}

.nebula-light .stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.nebula-light .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.nebula-light .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.nebula-light .modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

.nebula-light .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.nebula-light .close-btn {
  color: var(--text-secondary);
}

.nebula-light .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(244, 63, 94, 0.1);
}

/* 课程卡片样式 */
.nebula-light .course-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.nebula-light .course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.nebula-light .course-card:hover {
  box-shadow: var(--shadow-glow);
}

.nebula-light .course-card-header h3 {
  color: var(--text-primary);
}

.nebula-light .course-level {
  background: var(--gradient-primary);
  color: var(--text-accent);
}

.nebula-light .course-description {
  color: var(--text-secondary);
}

/* 练习类型标签 */
.nebula-light .word-practice {
  background-color: rgba(76, 29, 149, 0.1);
  color: var(--accent-primary);
}

.nebula-light .phrase-practice {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.nebula-light .sentence-practice {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

/* 滚动条样式 */
.nebula-light ::-webkit-scrollbar {
  width: 8px;
}

.nebula-light ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.nebula-light ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.nebula-light ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}/* 科幻高雅风格主题 - 星云夜间模式 */

/* 应用星云夜间主题 */
body.nebula-dark {
  /* 主要背景色 */
  --bg-primary: #0d0d1a;
  --bg-secondary: #161b33;
  --bg-tertiary: #1a1f3a;
  --bg-card: #1a1f3a;
  
  /* 文本颜色 */
  --text-primary: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --text-accent: #ffffff;
  
  /* 主要强调色 - 提升暗背景下的可读性 */
  --accent-primary: #a78bfa;
  --accent-primary-light: #c4b5fd;
  --accent-primary-dark: #7c3aed;
  
  /* 主要颜色 - 用于选中状态（提升暗背景下的对比度） */
  --primary-color: #7c3aed;
  --primary-color-rgb: 124, 58, 237;
  
  /* 次要强调色 - 宇宙粉 */
  --accent-secondary: #db2777;
  --accent-secondary-light: #ec4899;
  --accent-secondary-dark: #be185d;
  
  /* 成功/错误/警告色 */
  --color-success: #10b981;
  --color-error: #f43f5e;
  --color-warning: #f59e0b;
  
  /* 边框和分割线 */
  --border-color: #2d3748;
  --border-light: #1a202c;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 20px rgba(167, 139, 250, 0.35);
  
  /* 渐变（使用变量以保持与主色一致） */
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #db2777 100%);
  --gradient-card: linear-gradient(145deg, #1a1f3a 0%, #161b33 100%);
  --gradient-hover: linear-gradient(135deg, #3730a3 0%, #be185d 100%);
  
  /* 特殊效果 */
  --glow-color: rgba(167, 139, 250, 0.4);
  --text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
  
  /* 缺失的全局变量 */
  --text-inverse: #ffffff;
  --bg-disabled: #161b33;
  --bg-hover: #1a1f3a;
  --bg-overlay: rgba(13, 13, 26, 0.9);
  --text-tertiary: #4a5568;
  --text-disabled: #2d3748;
  --accent-hover: #3730a3;
  --accent-primary-opacity: rgba(76, 29, 149, 0.1);
  --accent-secondary-opacity: rgba(219, 39, 119, 0.1);
  --border-primary: #4c1d95;
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.25);
  
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 卡片样式 */
.nebula-dark .card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.nebula-dark .card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.nebula-dark .card:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* 按钮样式 */
.nebula-dark .btn-primary {
  background: var(--gradient-primary);
  color: var(--text-accent);
  border: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nebula-dark .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.nebula-dark .btn-primary:hover::before {
  left: 100%;
}

.nebula-dark .btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.nebula-dark .btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.nebula-dark .btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* 导航栏样式 */
.nebula-dark .app-header {
  background: linear-gradient(90deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

/* 主内容区域样式 */
.nebula-dark .app-main {
  padding-top: 0; /* 移除之前设置的5rem向下偏移 */
}

.nebula-dark .app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.nebula-dark .nav-item {
  color: var(--text-secondary);
  position: relative;
}

.nebula-dark .nav-item:hover {
  color: var(--accent-primary);
}

.nebula-dark .nav-item.active {
  color: var(--accent-primary);
}

.nebula-dark .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

/* 输入框样式 */
.nebula-dark .input-field {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  position: relative;
}

.nebula-dark .input-field:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.3);
}

/* 课程卡片标题样式 */
.nebula-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.nebula-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* 统计数据样式 */
.nebula-dark .stat-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 8rem;
}

.nebula-dark .stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.nebula-dark .stat-value {
  color: var(--accent-primary);
  text-shadow: var(--text-shadow);
}

/* 模态框样式 */
.nebula-dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.nebula-dark .modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
}

.nebula-dark .modal-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.nebula-dark .close-btn {
  color: var(--text-secondary);
}

.nebula-dark .close-btn:hover {
  color: var(--color-error);
  background-color: rgba(244, 63, 94, 0.1);
}

/* 课程卡片样式已移至courseStyles.css中统一定义 */

/* 练习类型标签 */
.nebula-dark .word-practice {
  background-color: rgba(76, 29, 149, 0.15);
  color: var(--accent-primary);
}

.nebula-dark .phrase-practice {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.nebula-dark .sentence-practice {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

/* 滚动条样式 */
.nebula-dark ::-webkit-scrollbar {
  width: 8px;
}

.nebula-dark ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

.nebula-dark ::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

.nebula-dark ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary-dark);
}
/* 全局表单样式增强 */

/* 提高所有form-group中label的可见性 */
.form-group label {
  color: #2c3e50 !important; /* 使用深色，提高对比度 */
  font-weight: 600 !important; /* 增加字体粗细 */
  font-size: 0.95rem !important; /* 稍微增大字体 */
}

/* 针对特定组件的form-group label样式增强 */
.lesson-create-modal .form-group label {
  color: #2c3e50 !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
}

.lesson-create-form .form-group label {
  color: #2c3e50 !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
}

.login-form .form-group label {
  color: #2c3e50 !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
}

.vocabulary-form-container .form-group label {
  color: #2c3e50 !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
}

/* 确保在所有主题下都清晰可见 */
body.light .form-group label {
  color: #1e293b !important;
  font-weight: 600 !important;
}

body.dark .form-group label {
  color: #e0e6f0 !important;
  font-weight: 600 !important;
}/* App组件样式 */

/* 导航栏样式 */
.app-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-item {
  text-decoration: none;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.nav-item:hover {
  background-color: var(--bg-hover);
}

/* 下拉菜单样式 */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  width: fit-content;
  min-width: auto;
  flex-shrink: 0;
  overflow: visible;
}

.dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background-color 0.3s;
  color: var(--text-primary);
  text-decoration: none;
}

.dropdown-toggle:hover {
  background-color: var(--bg-hover);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-card, #1a2332);
  border: 1px solid var(--border-color, #2a3441);
  border-radius: 8px;
  box-shadow: var(--shadow-medium, 0 8px 24px rgba(0,0,0,0.25));
  z-index: 9999;
  min-width: 180px;
  margin-top: 6px;
  padding: 0.25rem 0;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  overflow: hidden;
  transform-origin: top left;
  animation: dropdown-fade-in 120ms ease-out;
  will-change: opacity, transform;
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--text-primary, #e0e6f0);
  transition: background-color 0.2s ease, transform 80ms ease;
  cursor: pointer;
  line-height: 1.6;
  white-space: nowrap;
  user-select: none;
  outline: none;
  border-radius: 6px;
}

.dropdown-item:hover {
  background-color: var(--bg-hover, rgba(255,255,255,0.12));
  color: var(--text-primary, #ffffff);
}

.dropdown-item:first-child {
  border-radius: 8px 8px 0 0;
}

.dropdown-item:last-child {
  border-radius: 0 0 8px 8px;
}

.dropdown-item:active {
  transform: translateY(1px);
  background-color: rgba(255,255,255,0.18);
}

.dropdown-item:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent-primary, #409eff);
}

.dropdown-toggle::after {
  content: "";
  display: inline-block;
  margin-left: 6px;
  border: 4px solid transparent;
  border-top-color: currentColor;
  transform: translateY(-1px);
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg) translateY(1px);
}

@keyframes dropdown-fade-in {
  0% { opacity: 0; transform: translateY(-4px) scale(0.98); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* 用户信息样式 */
.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.user-name {
  font-weight: 500;
  color: var(--text-primary);
}

/* 用户下拉菜单样式 */
.user-dropdown {
  margin-left: auto;
}

.user-icon-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.user-icon-button:hover {
  background-color: var(--bg-hover);
  transform: scale(1.05);
}

.user-icon {
  font-size: 1.2rem;
  color: var(--text-primary);
}

/* 暗色主题下的用户图标样式 */
.dark .user-icon,
.cyberpunk-dark .user-icon,
.aurora-dark .user-icon,
.nebula-dark .user-icon {
  color: #f0f0f0;
  text-shadow: 0 0 2px rgba(255, 255, 255, 0.3);
}

.dark .user-icon-button,
.cyberpunk-dark .user-icon-button,
.aurora-dark .user-icon-button,
.nebula-dark .user-icon-button {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.1);
}

.dark .user-icon-button:hover,
.cyberpunk-dark .user-icon-button:hover,
.aurora-dark .user-icon-button:hover,
.nebula-dark .user-icon-button:hover {
  background-color: var(--bg-hover);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.2);
}

.user-menu {
  right: 0;
  left: auto; /* 确保用户菜单保持右对齐 */
  min-width: 180px;
}

.user-info-item {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  cursor: default;
}

.user-role {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 0.25rem 0;
}

.logout-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  transition: background-color 0.3s;
}

.logout-item:hover {
  background-color: var(--bg-hover);
  color: var(--accent-error);
}

.logout-button {
  background-color: var(--accent-error);
  color: white;
  border: none;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.3s;
}

.logout-button:hover {
  background-color: var(--accent-error-dark);
}

/* 加载容器样式 */
.loading-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 50vh;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 访问被拒绝容器样式 */
.access-denied-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 50vh;
  padding: 2rem;
  text-align: center;
}

.access-denied-container h1 {
  color: var(--accent-error);
  margin-bottom: 1rem;
}

/* 练习页面样式 */
.practice-page-layout .app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-small);
}

.practice-page-layout .practice-main {
  max-width: none !important;
  width: 100% !important; /* 改为100%而不是100vw，避免水平滚动条 */
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: auto; /* 根据内容自适应 */
  min-height: calc(100vh - 70px); /* 最小高度 */
  overflow: visible; /* 改为visible，避免双重滚动条 */
}

/* 移除重复的practice-page-container定义，统一在PracticePage.css中管理 *//* 统一答案卡片样式 - 现代高级/Apple风格/Linear风格 (重构版) */

/* ==================== CSS变量定义 ==================== */
/* 注意：必须在组件层级定义变量，以继承 body 上的主题变量 */
.uac-container,
.uac-card--page {
  --answer-card-max-width: 80vw;
  --answer-card-min-width: 360px;
  --answer-card-z-index: 90000;

  /* 引用全局主题变量 - 确保与主题强一致 */
  --uac-bg: var(--bg-card, #ffffff);
  --uac-border: var(--border-color, #e2e8f0);
  /* 阴影: 更柔和、更扩散的阴影，制造悬浮感 */
  --uac-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));

  --uac-text-main: var(--text-primary, #1e293b);
  --uac-text-sub: var(--text-secondary, #64748b);
  --uac-accent: var(--accent-primary, #3b82f6);
  --uac-accent-rgb: var(--primary-color-rgb, 59, 130, 246);

  /* 字体系统 */
  --uac-font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --uac-font-family-mono: "SF Mono", "Menlo", "Monaco", "Courier New", monospace;
}

/* ==================== 答案卡片容器样式 ==================== */

.uac-container--page,
.uac-container--bottom,
.uac-container--top,
.uac-container {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--answer-card-z-index);
  display: flex;
  justify-content: center;
  pointer-events: auto;
  perspective: 1000px;
}

.uac-container--page {
  top: 45%;
  /* 视觉重心上移 */
  transform: translate(-50%, -50%);
  width: auto;
  min-width: var(--answer-card-min-width);
  max-width: 90vw;
}

/* ==================== 核心卡片样式 (Premium Layout) ==================== */

.uac-card--page {
  background: var(--uac-bg);
  border: 1px solid var(--uac-border);
  border-radius: 24px;
  box-shadow: var(--uac-shadow);
  padding: 48px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  width: 600px;
  /* 稍微收窄，增加精致感 */
  min-width: 400px;
  min-height: 400px;
  /* 增加最小高度，防止初始渲染时卡片过小导致的视觉跳动 */
  max-width: 900px;
  max-height: 80vh;
  /* 限制最大高度，防止长句溢出屏幕 */
  position: relative;
  overflow-y: auto;
  /* 允许垂直滚动 */
  overflow-x: hidden;
  will-change: transform, opacity;
  display: flex;
  flex-direction: column;
  gap: 32px;
  /* 模块间距 */

  /* 优雅的上浮动画 */
  animation: elegant-pop-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;

  /* 滚动条样式优化 */
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.1) transparent;
  overscroll-behavior: contain;
}

/* Webkit 滚动条适配 */
.uac-card--page::-webkit-scrollbar {
  width: 6px;
}

.uac-card--page::-webkit-scrollbar-track {
  background: transparent;
}

.uac-card--page::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.uac-card--page::-webkit-scrollbar-thumb:hover {
  background-color: rgba(0, 0, 0, 0.2);
}

.uac-card--page.sentence-practice {
  width: 700px;
  /* 句子练习稍宽 */
}

/* ==================== 头部区域 (Header) ==================== */

.uac-header--page {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  /* 左对齐 */
  gap: 12px;
  border-bottom: 1px solid transparent;
  /* 预留边框位置 */
  padding-bottom: 8px;
}

/* 标题行：单词 + 喇叭 */
.uac-title-row--page {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
}

.uac-content--page {
  font-family: var(--uac-font-family-sans);
  font-size: 3.5rem;
  /* 大号标题 */
  font-weight: 700;
  color: var(--uac-text-main);
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: color 0.2s;
  flex: 1;
  /* 占据剩余空间 */
  word-break: break-word;
  /* 允许长单词换行 */
}

.uac-content--page:hover {
  color: var(--uac-accent);
}

/* 音频按钮 */
.uac-audio-btn--page {
  background: rgba(var(--uac-accent-rgb), 0.1);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--uac-accent);
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0.8;
  margin-top: 8px;
  /* 视觉补偿，防止与首行文字顶部对齐太紧 */
  flex-shrink: 0;
  /* 防止被挤压 */
}

.uac-audio-btn--page:hover {
  background: rgba(var(--uac-accent-rgb), 0.2);
  transform: scale(1.05);
  opacity: 1;
}

/* 音标行 */
.uac-phonetic-row--page {
  display: flex;
  align-items: center;
}

.uac-phonetic--page {
  font-family: var(--uac-font-family-mono);
  font-size: 1.1rem;
  color: var(--uac-text-sub);
  background: transparent;
  padding: 0;
  font-weight: 500;
}

/* ==================== 主体区域 (Body) ==================== */

.uac-body--page {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 释义/翻译区域 */
.uac-translation-section--page {
  width: 100%;
}

.uac-translation__text--page {
  font-size: 1.5rem;
  /* 翻译文字加大 */
  color: var(--uac-text-main);
  line-height: 1.5;
  font-weight: 400;
  text-align: left;
}

/* 单词拆分 (句子练习) */
.uac-word-breakdown--page,
.uac-word-elements--page,
.uac-phrase-elements {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  padding: 8px;
  align-items: stretch;
}

.uac-breakdown-word,
.uac-word-unit--page {
  font-family: var(--uac-font-family-sans);
  padding: 12px 16px;
  background: #ffffff;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  min-width: 80px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02), 0 1px 3px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

/* 多彩卡片风格循环 */
.uac-breakdown-word:nth-child(5n+1),
.uac-word-unit--page:nth-child(5n+1) {
  background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 40%);
  border-top: 3px solid #3b82f6;
}

.uac-breakdown-word:nth-child(5n+2),
.uac-word-unit--page:nth-child(5n+2) {
  background: linear-gradient(180deg, #fdf4ff 0%, #ffffff 40%);
  border-top: 3px solid #d946ef;
}

.uac-breakdown-word:nth-child(5n+3),
.uac-word-unit--page:nth-child(5n+3) {
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 40%);
  border-top: 3px solid #22c55e;
}

.uac-breakdown-word:nth-child(5n+4),
.uac-word-unit--page:nth-child(5n+4) {
  background: linear-gradient(180deg, #fff7ed 0%, #ffffff 40%);
  border-top: 3px solid #f97316;
}

.uac-breakdown-word:nth-child(5n+5),
.uac-word-unit--page:nth-child(5n+5) {
  background: linear-gradient(180deg, #faf5ff 0%, #ffffff 40%);
  border-top: 3px solid #8b5cf6;
}

.uac-breakdown-word:hover,
.uac-word-unit--page:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.08);
}

.uac-breakdown-word:active,
.uac-word-unit--page:active {
  transform: translateY(-1px);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.06);
}

/* 音标 - 顶部 */
.uac-breakdown-phonetic,
.uac-word-phonetic--page {
  font-family: var(--uac-font-family-mono);
  font-size: 0.85rem;
  color: #64748b;
  /* 强制深灰色，确保白底可见 */
  margin-bottom: 4px;
  opacity: 0.9;
  /* 提高不透明度 */
}

/* 单词内容 - 中间加大 */
.uac-breakdown-content,
.uac-word-content--page {
  font-weight: 700;
  font-size: 1.35rem;
  color: #1e293b;
  /* 强制深色，确保白底可见 */
  margin: 4px 0;
  letter-spacing: -0.01em;
}

/* 装饰分割线 */
.uac-breakdown-divider,
.uac-divider--page {
  width: 24px;
  height: 2px;
  background-color: rgba(0, 0, 0, 0.1);
  /* 加深颜色 */
  margin: 6px 0;
  border-radius: 1px;
}

/* 翻译 - 底部 */
.uac-breakdown-tip,
.uac-word-translation--page {
  font-size: 0.9rem;
  color: #475569;
  /* 强制深灰色，确保白底可见 */
  opacity: 1;
  /* 提高不透明度 */
  font-weight: 500;
}

/* 标点符号样式 */
.uac-word-unit--page--punctuation {
  background: transparent;
  border: none;
  box-shadow: none;
  min-width: auto;
  padding: 0;
  cursor: default;
  transform: none;
}

.uac-punct {
  font-size: 1.5rem;
  color: var(--uac-text-sub);
  padding: 0 4px;
  display: flex;
  align-items: center;
  opacity: 0.5;
  margin-top: 10px;
  /* 稍微下移以视觉对齐 */
}

/* 例句区域 - 极简卡片风格 */
.uac-example-section--page {
  margin-top: 16px;
  background: rgba(var(--uac-accent-rgb), 0.03);
  /* 极淡背景 */
  border-left: 3px solid var(--uac-accent);
  padding: 16px 24px;
  border-radius: 0 8px 8px 0;
  position: relative;
}

.uac-section-label--page {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--uac-accent);
  margin-bottom: 8px;
  letter-spacing: 1px;
  opacity: 0.8;
}

.uac-example--page {
  display: flex;
  align-items: flex-start;
  /* 顶部对齐 */
  gap: 12px;
  cursor: pointer;
  position: relative;
  /* 为定位提供上下文 */
  padding: 8px;
  border-radius: 8px;
  transition: background-color 0.2s;
}

.uac-example--page:hover {
  background-color: rgba(var(--uac-accent-rgb), 0.05);
}

.uac-example--page:active {
  background-color: rgba(var(--uac-accent-rgb), 0.1);
  transform: scale(0.995);
}

.uac-example__text--page {
  font-family: 'Georgia', serif;
  font-size: 1.2rem;
  color: var(--uac-text-main);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.uac-audio-btn-mini--page {
  background: rgba(var(--uac-accent-rgb), 0.15);
  /* 默认有极淡背景 */
  border: none;
  border-radius: 50%;
  width: 36px;
  /* 固定尺寸 */
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--uac-accent);
  cursor: pointer;
  flex-shrink: 0;
  /* 防止被压缩 */
  opacity: 1;
  /* 默认显示 */
  transition: all 0.2s ease;
  margin-top: 0;
  /* 视觉微调，与首行文字对齐 */
}

.uac-audio-btn-mini--page:hover {
  opacity: 1;
  background: rgba(var(--uac-accent-rgb), 0.2);
  transform: scale(1.1);
}

.uac-example--page:hover .uac-audio-btn-mini--page {
  /* 悬停整行时也可以稍微高亮图标 */
  opacity: 1;
}

/* 提示区域 */
.uac-hint--page {
  margin-top: 12px;
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  color: var(--uac-text-sub);
  background: rgba(255, 255, 255, 0.5);
  padding: 8px 12px;
  border-radius: 6px;
  align-self: flex-start;
}

.uac-hint__label--page {
  font-weight: 700;
  margin-right: 8px;
  font-size: 0.75rem;
  background: #f59e0b;
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
}

/* ==================== 动画 ==================== */

@keyframes elegant-pop-in {
  0% {
    opacity: 0;
    transform: scale(0.96) translateY(12px);
  }

  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ==================== 移动端适配 ==================== */

@media (max-width: 768px) {
  .uac-card--page {
    padding: 32px 24px;
    width: 92vw;
    border-radius: 20px;
  }

  .uac-content--page {
    font-size: 2.5rem;
  }

  .uac-translation__text--page {
    font-size: 1.2rem;
  }
}.main-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--bg-primary);
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left 0.3s ease;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

/* 收起侧栏时的主内容左侧间距（桌面端） */
.main-layout.collapsed .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

.mobile-header {
  display: none;
  height: 64px;
  align-items: center;
  padding: 0 16px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 99;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  margin-right: 16px;
  border-radius: 4px;
}

.menu-toggle:hover {
  background-color: var(--bg-tertiary);
}

.mobile-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
}

@media (max-width: 1024px) {
  .main-content {
    margin-left: 0;
  }
  .main-layout.collapsed .main-content {
    margin-left: 0;
  }
  
  .mobile-header {
    display: flex;
  }
}

/* Practice page might need full width, so we can hide sidebar or overlay it */
.main-layout.full-width .main-content {
  margin-left: 0;
}

.main-layout.full-width .sidebar {
  display: none;
}
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: width 0.3s ease, transform 0.3s ease;
  z-index: 1000;
  overflow-y: auto;
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}

/* 收起状态样式（桌面端） */
.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.5px;
}

/* 收起状态下隐藏文字LOGO */
.sidebar.collapsed .sidebar-logo { display: none; }

/* 收起/展开按钮样式 */
.collapse-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 8px;
  padding: 6px;
}
.collapse-toggle:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.sidebar-nav {
  flex: 1;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-group-title {
  padding: 0 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  font-weight: 600;
}

/* 收起时隐藏分组标题 */
.sidebar.collapsed .nav-group-title { display: none; }

.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s ease;
  font-weight: 500;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  width: 100%;
  box-sizing: border-box;
  font-size: 0.9rem;
}

/* 收起时仅保留图标居中显示 */
.sidebar.collapsed .nav-item { justify-content: center; }
.sidebar.collapsed .nav-text { display: none; }
.sidebar.collapsed .nav-icon { margin-right: 0; }

.nav-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--bg-accent-subtle, rgba(59, 130, 246, 0.1));
  color: var(--primary-color);
  font-weight: 600;
}

/* 深色主题（Nebula Dark）提高选中项对比度 */
body.nebula-dark .nav-item.active {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.18);
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  color: inherit;
  opacity: 0.8;
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
  opacity: 1;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.user-profile-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.user-profile:hover {
  background-color: var(--bg-tertiary);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  position: relative;
}

.user-avatar .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.user-avatar .avatar-default {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.user-info {
  flex: 1;
  overflow: hidden;
}

/* 收起时隐藏用户信息，仅保留头像 */
.sidebar.collapsed .user-info { display: none; }

.user-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.submenu {
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 2px;
}

.submenu .nav-item {
  padding: 8px 12px;
  font-size: 0.85rem;
}

.submenu-popover {
  position: fixed;
  z-index: 1000;
  width: 260px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  padding: 8px;
}

.submenu-popover .nav-item {
  border: none;
  background: transparent;
}

body.nebula-dark .submenu-popover {
  border-color: rgba(255, 255, 255, 0.18);
}

/* Mobile responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    backdrop-filter: blur(4px);
  }

  .sidebar-overlay.visible {
    opacity: 1;
    visibility: visible;
  }
}

.logout-btn {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 500;
}

.logout-btn:hover {
  background-color: var(--error-bg-subtle, rgba(239, 68, 68, 0.1));
  color: var(--error-color, #ef4444);
  border-color: var(--error-color, #ef4444);
}

.logout-icon {
  margin-right: 8px;
  vertical-align: middle;
}

.nav-text {
  flex: 1;
  text-align: left;
}

.sidebar-theme-toggle {
  margin-top: 16px;
  display: flex;
  justify-content: center;
}

.nav-badge {
  background-color: var(--error-color, #ef4444);
  color: white;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: bold;
  min-width: 18px;
  text-align: center;
  line-height: 1.2;
}
.confirm-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  animation: fadeIn 0.3s ease-in-out;
}

.confirm-dialog {
  background: white;
  border-radius: 12px;
  padding: 24px;
  min-width: 400px;
  max-width: 500px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  animation: slideIn 0.3s ease-out;
}

.confirm-dialog-header {
  margin-bottom: 16px;
}

.confirm-dialog-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.confirm-dialog-body {
  margin-bottom: 24px;
}

.confirm-dialog-message {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: #666;
}

.confirm-dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.confirm-dialog-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 80px;
}

.confirm-dialog-cancel {
  background: #f5f5f5;
  color: #666;
}

.confirm-dialog-cancel:hover {
  background: #e0e0e0;
}

.confirm-dialog-confirm {
  background: #007bff;
  color: white;
}

.confirm-dialog-confirm:hover {
  background: #0056b3;
}

/* 危险类型样式 */
.confirm-dialog-danger .confirm-dialog-confirm {
  background: #dc3545;
}

.confirm-dialog-danger .confirm-dialog-confirm:hover {
  background: #c82333;
}

/* 警告类型样式 */
.confirm-dialog-warning .confirm-dialog-confirm {
  background: #ffc107;
  color: #212529;
}

.confirm-dialog-warning .confirm-dialog-confirm:hover {
  background: #e0a800;
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
.theme-dropdown-container {
  width: 100%;
  margin-bottom: 10px;
}

.theme-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  user-select: none;
}

.theme-trigger:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.theme-trigger .nav-text {
  flex: 1;
}

.theme-trigger .dropdown-arrow {
  margin-left: auto;
  opacity: 0.7;
}

.theme-options {
  display: none;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.theme-popover {
  position: fixed;
  z-index: 1000;
  width: 220px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  padding: 8px;
}

.theme-option {
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: background-color 0.15s;
}

.theme-option:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.theme-option.active { color: var(--primary-color); font-weight: 600; }

.theme-check {
  color: var(--primary-color);
  margin-left: auto;
}

.theme-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 8px;
  flex-shrink: 0;
}

.theme-light { background: #10b981; }
.theme-dark { background: #111827; }
.theme-cyberpunk-dark { background: #b91c1c; }
.theme-aurora-light { background: #3b82f6; }
.theme-aurora-dark { background: #0ea5e9; }
.theme-nebula-light { background: #f59e0b; }
.theme-nebula-dark { background: #9333ea; }
.admin-console-page { width: 100%; height: 100%; }
.admin-console-container { width: 100%; max-width: none; margin: 0; padding: 24px; }
.admin-console-title { margin: 0 0 6px; font-size: 24px; font-weight: 800; color: var(--text-primary); }
.admin-console-subtitle { margin: 0 0 16px; color: var(--text-secondary); }
.admin-section { margin-top: 18px; }
.admin-section-title { font-size: 18px; font-weight: 700; margin: 0 0 10px; color: var(--text-primary); }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.admin-card { display: block; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 14px; text-decoration: none; }
.admin-card-title { font-weight: 700; color: var(--text-primary); }
.admin-card-desc { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }
.admin-card:hover { border-color: var(--accent-primary); box-shadow: 0 6px 16px rgba(0,0,0,0.08); transform: translateY(-1px); }
.admin-feedback-page {
  padding: 24px;
  width: 100%;
  max-width: none;
  margin: 0;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.page-header h1 {
  margin: 0;
  font-size: 24px;
  color: var(--text-primary);
}

.filter-controls {
  display: flex;
  gap: 12px;
}

.status-filter {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
}

.refresh-btn {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  background-color: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: background-color 0.2s;
}

.refresh-btn:hover {
  background-color: var(--primary-hover);
}

.loading,
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.error-message {
  background-color: rgba(255, 0, 0, 0.1);
  color: #ff4d4f;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.close-error {
  background: none;
  border: none;
  color: inherit;
  font-size: 20px;
  cursor: pointer;
}

.feedback-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 16px;
}

.feedback-item {
  background-color: var(--bg-card);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feedback-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feedback-item.status-pending {
  border-left: 4px solid #faad14;
}

.feedback-item.status-processed {
  border-left: 4px solid #52c41a;
}

.feedback-item.status-ignored {
  border-left: 4px solid #d9d9d9;
}

.feedback-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 14px;
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  border: 1px solid var(--border-color);
}

.status-badge.pending {
  background-color: rgba(245, 158, 11, 0.12);
  color: #8a5b00;
  border-color: #f5a80b33;
}

.status-badge.processed {
  background-color: rgba(16, 185, 129, 0.12);
  color: #0b7358;
  border-color: #10b98133;
}

.status-badge.ignored {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

.user-info {
  display: flex;
  gap: 8px;
  color: var(--text-secondary);
}

.username {
  font-weight: 500;
  color: var(--text-primary);
}

.time {
  color: var(--text-tertiary);
}

.feedback-content {
  margin-bottom: 16px;
}

.feedback-type {
  margin-bottom: 8px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.type-badge {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.content-text {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
}

.feedback-context {
  background-color: var(--bg-secondary);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  border: 1px solid var(--border-color);
}

.feedback-context p {
  margin: 4px 0;
  color: var(--text-secondary);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.context-link {
  display: inline-block;
  margin-top: 8px;
  color: var(--primary-color);
  text-decoration: none;
  word-break: break-all;
}

.context-link:hover {
  text-decoration: underline;
}

.feedback-footer {
  display: flex;
  justify-content: flex-end;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.status-select {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
}

.status-select:hover {
  border-color: var(--primary-color);
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.pagination button {
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination span {
  display: flex;
  align-items: center;
  color: var(--text-secondary);
}.json-validator-page { padding: var(--gutter-lg, 16px); }
.json-validator-page .desc { color: var(--text-secondary, #666); margin-bottom: var(--gutter-sm, 8px); }
.toolbar { display: flex; align-items: center; gap: var(--gutter-sm, 8px); margin-bottom: var(--gutter-sm, 8px); flex-wrap: wrap; }
.btn { padding: .4rem .8rem; border: 1px solid rgba(var(--accent-primary-rgb, 59,130,246), 0.25); background: var(--bg-primary, #f8f8f8); cursor: pointer; border-radius: 6px; }
.btn.primary { background: rgba(var(--accent-primary-rgb, 59,130,246), 1); color: #fff; border-color: rgba(var(--accent-primary-rgb, 59,130,246), 1); }
.filename { color: var(--text-tertiary, #888); font-size: var(--font-size-sm, .875rem); }
.panes { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter-md, 12px); }
.pane { display: flex; flex-direction: column; }
.pane-title { font-weight: 600; margin-bottom: .25rem; color: var(--text-primary, #333); }
.editor { width: 100%; min-height: 480px; font-family: var(--font-family-mono, ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace); font-size: var(--font-size-sm, 13px); line-height: 1.5; padding: .5rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 8px; }
.result-box { border: 1px solid rgba(0,0,0,0.08); border-radius: 8px; padding: .5rem; min-height: 480px; background: var(--bg-secondary, #fafafa); }
.result-box.placeholder { color: var(--text-tertiary, #999); display: flex; align-items: center; justify-content: center; }
.summary { font-weight: 600; margin-bottom: var(--gutter-sm, 8px); }
.summary.ok { color: #2e7d32; }
.summary.fail { color: #c62828; }
.file-path { font-size: var(--font-size-sm, .9rem); color: var(--text-secondary, #555); margin-bottom: var(--gutter-sm, 8px); }
.path-input input { width: 100%; padding: .4rem .5rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 8px; margin-bottom: var(--gutter-sm, 8px); }
.issues { white-space: pre-wrap; font-size: var(--font-size-sm, 13px); color: var(--text-primary, #333); }
.dir-files { display: flex; gap: var(--gutter-sm, 8px); align-items: center; margin: var(--gutter-sm, 8px) 0; }
.dir-files select { max-width: 100%; padding: .3rem .4rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 8px; }
.batch-report { margin-top: var(--gutter-sm, 8px); border-top: 1px dashed rgba(0,0,0,0.1); padding-top: var(--gutter-sm, 8px); }
.batch-report .summary-line, .batch-report .type-line { font-size: var(--font-size-sm, .9rem); color: var(--text-secondary, #444); margin-bottom: .25rem; }
.batch-report .actions { display: flex; gap: var(--gutter-sm, 8px); margin: var(--gutter-sm, 8px) 0; }
.batch-report .failed-list { max-height: 320px; overflow: auto; border: 1px solid rgba(0,0,0,0.08); border-radius: 8px; padding: .4rem; background: var(--bg-primary, #fff); }
.batch-report .failed-item { margin-bottom: var(--gutter-sm, 8px); }
.batch-report .failed-item .path { font-weight: 600; font-size: var(--font-size-sm, .9rem); margin-bottom: .25rem; }
.issues.small { font-size: var(--font-size-sm, 12px); }
@media (max-width: 960px) {
  .panes { grid-template-columns: 1fr; }
}
.upload-config .row { display: flex; gap: .5rem; align-items: center; }
.upload-config input, .upload-config select { padding: .35rem .5rem; border: 1px solid #ddd; border-radius: 4px; }
.upload-progress { margin: .5rem 0; }
.upload-progress .item { display: grid; grid-template-columns: 1fr 180px 70px; gap: .5rem; align-items: center; font-size: .9rem; }
.upload-progress .bar { height: 10px; background: #e0e0e0; border-radius: 6px; overflow: hidden; }
.upload-progress .inner { display: block; height: 100%; background: #1976d2; }
.upload-progress .status-success .inner { background: #2e7d32; }
.upload-progress .status-error .inner { background: #c62828; }
.admin-page-container {
  padding: 24px;
  background-color: var(--bg-primary);
  min-height: 100vh;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  color: var(--text-primary);
  margin: 0;
}

.filters-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
  padding: 16px 24px;
  border-radius: 12px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-group label {
  color: var(--text-secondary);
  font-weight: 500;
}

.period-selector {
  display: flex;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: 8px;
}

.period-selector button {
  padding: 6px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}

.period-selector button:hover {
  color: var(--text-primary);
}

.period-selector button.active {
  background: var(--bg-primary);
  color: var(--primary-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.search-form {
  display: flex;
  gap: 8px;
}

.search-form input {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-width: 200px;
}

.search-btn {
  padding: 8px 16px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
}

.search-btn:hover {
  opacity: 0.9;
}

.stats-content {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.table-container {
  overflow-x: auto;
}

.stats-table {
  width: 100%;
  border-collapse: collapse;
}

.stats-table th {
  text-align: left;
  padding: 16px;
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
}

.stats-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.stats-table tr:last-child td {
  border-bottom: none;
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
}

.rank-1 {
  background: #fff1f0;
  color: #f5222d;
}

.rank-2 {
  background: #fff7e6;
  color: #fa8c16;
}

.rank-3 {
  background: #f6ffed;
  color: #52c41a;
}

.user-info-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-details {
  display: flex;
  flex-direction: column;
}

.username {
  font-weight: 500;
  color: var(--text-primary);
}

.phone {
  font-size: 12px;
  color: var(--text-secondary);
}

.duration-cell {
  font-family: monospace;
  font-weight: 600;
  color: var(--primary-color);
}

.empty-state {
  text-align: center;
  padding: 48px !important;
  color: var(--text-tertiary);
}

.loading {
  text-align: center;
  padding: 48px;
  color: var(--text-secondary);
}
/* 推广关系统计页面样式 */
.admin-promoter-stats {
  width: 100%;
  margin: 0;
  padding: var(--spacing-lg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* 页面标题 */
.page-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.page-header h2 {
  margin: 0 0 var(--spacing-xs) 0;
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--text-primary);
}

.page-header p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* 筛选条件部分 */
.filter-section {
  background-color: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.filter-row {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-item label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  white-space: nowrap;
}

.filter-select,
.filter-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  min-width: 150px;
  transition: all var(--transition-normal);
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.filter-select:focus,
.filter-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-primary-opacity);
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.filter-btn:hover {
  background-color: var(--accent-hover);
}

/* 统计总计卡片 */
.stats-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.summary-card {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--border-color);
}

.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.summary-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.summary-value {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--accent-primary);
}

/* 表格部分 */
.stats-table-section,
.referral-list-section {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.stats-table-section h3,
.referral-list-section h3 {
  margin: 0;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

/* 表格容器 */
.stats-table-container,
.referral-table-container {
  overflow-x: auto;
}

/* 表格样式 */
.stats-table,
.referral-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-secondary);
}

.stats-table th,
.stats-table td,
.referral-table th,
.referral-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
}

.stats-table th,
.referral-table th {
  background-color: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.stats-table tr:hover,
.referral-table tr:hover {
  background-color: var(--bg-hover);
}

/* 状态标签 */
.status-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.paid {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.status-badge.pending {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

.status-badge.cancelled {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
}

/* 无数据状态 */
.no-data {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

/* 加载和错误状态 */
.loading-container,
.error-container {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--spacing-md);
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.retry-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  margin-top: var(--spacing-md);
  transition: background-color var(--transition-normal);
}

.retry-btn:hover {
  background-color: var(--accent-hover);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-item {
    margin-bottom: var(--spacing-md);
  }

  .filter-select,
  .filter-input {
    min-width: auto;
  }

  .stats-summary {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .summary-card {
    padding: var(--spacing-md);
  }

  .summary-value {
    font-size: var(--font-size-xl);
  }

  .stats-table th,
  .stats-table td,
  .referral-table th,
  .referral-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  .admin-promoter-stats {
    padding: var(--spacing-sm);
  }

  .page-header h2 {
    font-size: var(--font-size-xl);
  }

  .filter-section {
    padding: var(--spacing-sm);
  }

  .stats-summary {
    grid-template-columns: 1fr;
  }

  .summary-card {
    padding: var(--spacing-sm);
  }
}.campaign-page { padding: 24px; }
.campaign-hero { text-align: center; margin-bottom: 24px; }
.campaign-hero .subtitle { color: #666; margin-top: 8px; }
.hero-actions { margin-top: 16px; }
.btn { padding: 8px 16px; border-radius: 8px; border: 1px solid #ccc; background: #fff; cursor: pointer; }
.btn-primary { background: #3b82f6; color: #fff; border-color: #3b82f6; }
.section { margin: 24px 0; }
.card { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.channel-title { font-weight: 600; margin-bottom: 8px; }
.rules, .notes { margin: 8px 0 0; padding-left: 18px; color: #444; }
.campaign-footer { margin-top: 32px; }
.contact-box { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 12px; }
.contact-label { font-weight: 600; }
.contact-tip { font-size: 12px; color: #666; margin-top: 8px; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
.script-box { display: flex; gap: 12px; align-items: center; margin-top: 12px; }
.script-text { flex: 1; background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 8px; padding: 8px 12px; }
.images-tip { margin-top: 8px; color: #666; }
.desc { color: #444; margin-bottom: 12px; }
.rules-list { display: grid; grid-template-columns: 1fr; gap: 8px; }
.rule-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; border: 1px dashed #e5e7eb; border-radius: 8px; }
.rule-step { color: #374151; }
.rule-reward { color: #111827; font-weight: 600; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; background: #eef2ff; color: #334155; border: 1px solid #e0e7ff; }
.note { margin-left: 6px; color: #6b7280; font-weight: 400; }
.light { background: #f9fafb; }
.tips-title { font-weight: 600; margin-bottom: 8px; }
.tips-list { margin: 0; padding-left: 18px; color: #374151; }
.claim-modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.claim-modal { width: 640px; max-width: 95vw; background: #fff; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid #eee; }
.modal-body { padding: 16px; }
.modal-footer { padding: 12px 16px; border-top: 1px solid #eee; display: flex; justify-content: flex-end; gap: 8px; }
.close-btn { border: none; background: transparent; font-size: 18px; cursor: pointer; }
.form-item { margin-bottom: 12px; }
.form-label { display: block; margin-bottom: 6px; color: #374151; }
.form-input, .form-textarea { width: 100%; border: 1px solid #e5e7eb; border-radius: 8px; padding: 8px 10px; }
.form-textarea { min-height: 100px; }
.co-partner-page {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 24px;
  box-sizing: border-box;
  min-height: 100%;
  background: transparent;
}

/* Hero Section */
.partner-hero {
  position: relative;
  text-align: center;
  padding: 80px 24px;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  color: #fff;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.2);
  overflow: hidden;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Background decoration circles */
.partner-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  transform: rotate(-15deg);
  pointer-events: none;
}

.partner-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 60%;
  height: 150%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 60%);
  transform: rotate(15deg);
  pointer-events: none;
}

.hero-title {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
  z-index: 1;
}

.hero-title h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  font-size: 1.1rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  color: #fff;
}

.subtitle {
  font-size: 1.35rem;
  margin: 0 0 40px;
  opacity: 0.95;
  max-width: 700px;
  line-height: 1.6;
  z-index: 1;
  font-weight: 400;
}

.hero-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 40px;
  z-index: 1;
}

.hero-icon {
  opacity: 0.8;
  transition: all 0.3s ease;
  color: rgba(255, 255, 255, 0.9);
}

.hero-icon:hover {
  opacity: 1;
  transform: translateY(-4px) scale(1.1);
  color: #fff;
}

.hero-actions {
  display: flex;
  justify-content: center;
  z-index: 1;
}

.hero-actions .btn-primary {
  padding: 14px 40px;
  font-size: 1.2rem;
  border-radius: 999px;
  background: #fff;
  color: #2563eb;
  border: none;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  cursor: pointer;
}

.hero-actions .btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
  background: #f8fafc;
}

.btn-icon {
  margin-left: 8px;
}

.sections-container {
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* Sections */
.section {
  margin-bottom: 60px;
}

.section-header {
  display: flex;
  align-items: center;
  margin-bottom: 32px;
  gap: 16px;
}

.section-icon {
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  letter-spacing: -0.01em;
}

/* Remove old before pseudo-element since we have icons now */
.section-title::before {
  display: none;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.grid-cards.two-col {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* Card Styles - Glassmorphism inspired */
.card {
  background: var(--bg-secondary, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.06));
  border-radius: 20px;
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card.hover-effect:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
  border-color: rgba(37, 99, 235, 0.2);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card.hover-effect:hover::before {
  opacity: 1;
}

.card.info {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 20px;
}

.card-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
  transition: transform 0.3s ease;
}

.card.hover-effect:hover .card-icon-wrapper {
  transform: scale(1.1) rotate(5deg);
}

.card-content {
  flex: 1;
}

.card-text {
  line-height: 1.5;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary, #1f2937);
}

.card.info-box {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.card.info-box h3 {
  margin: 0 0 16px 0;
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 700;
}

.notes {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.notes li {
  position: relative;
  padding-left: 28px;
  margin: 12px 0;
  line-height: 1.6;
  color: var(--text-secondary, #4b5563);
  font-size: 1rem;
}

.notes li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .co-partner-page {
    padding: 16px;
  }

  .partner-hero {
    padding: 48px 20px;
    border-radius: 16px;
  }

  .hero-title h1 {
    font-size: 2.2rem;
  }

  .subtitle {
    font-size: 1.1rem;
  }

  .grid-cards,
  .grid-cards.two-col {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 20px;
  }

  .card.info {
    align-items: flex-start;
  }
}body .course-list-page .typing-course-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--bg-primary);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  cursor: pointer;
  box-sizing: border-box;
  position: relative;
  height: 100%;
}

body .course-list-page .typing-course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px -3px rgba(0, 0, 0, 0.1), 0 6px 8px -2px rgba(0, 0, 0, 0.05);
  border-color: var(--primary-color-alpha);
}

.dark .typing-course-card {
  background: var(--bg-secondary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.typing-course-card-image-container {
  position: relative;
  width: 100%;
  height: 160px; /* 适中的高度 */
  overflow: hidden;
  background: var(--bg-tertiary);
}

.typing-course-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.typing-course-card:hover .typing-course-card-image {
  transform: scale(1.05);
}

.typing-course-card-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  color: var(--text-secondary);
  font-size: 3rem;
}

.course-type-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: white;
  z-index: 2;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  backdrop-filter: blur(4px);
}

.course-type-badge.free { background: var(--success-color, #10b981); }
.course-type-badge.paid { background: var(--warning-color, #f59e0b); }
.course-type-badge.part { background: var(--info-color, #3b82f6); }

.typing-course-card-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: transparent;
}

.typing-course-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
  gap: 8px;
}

.typing-course-card-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 深色主题下确保标题为纯色且清晰可读 */
.dark .typing-course-card-title,
.nebula-dark .typing-course-card-title,
.aurora-dark .typing-course-card-title,
.cyberpunk-dark .typing-course-card-title {
  color: #ffffff !important;
  background: none !important;
  -webkit-background-clip: initial !important;
  -webkit-text-fill-color: #ffffff !important;
  text-shadow: none !important;
}

.course-card-lessons {
  font-size: 13px;
  color: var(--text-tertiary);
  white-space: nowrap;
  padding-top: 2px;
}

.typing-course-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.typing-course-card-tag {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 6px;
  font-weight: 500;
}

.add-to-my-courses-btn {
  margin-top: auto;
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--primary-color);
  color: white;
  box-shadow: 0 2px 4px rgba(var(--primary-rgb), 0.2);
}

.add-to-my-courses-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(var(--primary-rgb), 0.3);
}

.add-to-my-courses-btn.added {
  background: var(--success-color);
  color: white;
}

.add-to-my-courses-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
/* 权限弹窗主题样式 - 使用主题提供的标准卡片样式 */
.permission-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.permission-dialog-card {
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 8px;
  box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
  padding: 24px;
  max-width: 400px;
  width: 100%;
  margin: 20px;
}

.permission-dialog-header {
  text-align: center;
  padding-bottom: 8px;
}

.permission-dialog-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-primary, #1a1f36);
  margin: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  filter: contrast(1.1);
}

.permission-dialog-content {
  text-align: center;
  padding-bottom: 24px;
}

.permission-dialog-message {
  margin-bottom: 24px;
  color: var(--text-secondary, #4a5568);
  font-size: 1rem;
  line-height: 1.5;
  margin: 0;
}

.permission-dialog-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.permission-dialog-button {
  border-radius: 8px;
  padding: 10px 24px;
  font-weight: bold;
  margin: 0 6px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.permission-dialog-button-primary {
  background: var(--gradient-primary, linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%));
  color: white;
}

.permission-dialog-button-primary:hover {
  background: var(--gradient-hover, linear-gradient(135deg, #4dabf7 0%, #9775fa 100%));
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow, 0 4px 12px rgba(59, 130, 246, 0.3));
}

.permission-dialog-button-secondary {
  background-color: var(--bg-tertiary, #f0f2ff);
  color: var(--text-primary, #1a1f36);
  border: 1px solid var(--border-color, #e2e8f0);
}

.permission-dialog-button-secondary:hover {
  background-color: var(--bg-card, #ffffff);
  border-color: var(--accent-primary, #3b82f6);
  color: var(--accent-primary, #3b82f6);
}/* 我的课程卡片特有样式 - 基于CourseCard.css的扩展 */

/* 移除按钮样式 */
.my-typing-course-card-remove-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(245, 101, 101, 0.9);
  color: white;
  border: none;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(245, 101, 101, 0.3);
}

.my-course-card:hover .my-typing-course-card-remove-btn {
  opacity: 1;
}

.my-typing-course-card-remove-btn:hover {
  background: rgba(229, 62, 62, 1);
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(245, 101, 101, 0.5);
}

/* 最后访问时间样式 */
.my-typing-course-card-last-accessed {
  position: absolute;
  bottom: 7px !important; /* 下移3px，从10px改为7px */
  left: 10px !important;
  font-size: 12px !important;
  color: #718096 !important;
  /* 删除背景 */
  padding: 4px 8px !important;
  border-radius: 12px !important;
  z-index: 10 !important; /* 提高z-index确保显示在最上层 */
  /* 删除边框阴影 */
  margin: 0 !important; /* 清除可能的margin */
  float: none !important; /* 清除可能的float */
  display: inline-block !important;
  transform: translate(0, 0) !important; /* 强制位置 */
  left: auto !important;
  top: auto !important;
}

.dark .my-typing-course-card-last-accessed {
  color: #a0aec0 !important;
  /* 删除背景 */
  /* 删除边框阴影 */
}

/* 我的课程卡片特有样式 - 完成徽章 */
.my-completed-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(72, 187, 120, 0.3);
}

/* 我的课程卡片特有样式 - 进度条 - 简化版 */
.my-typing-course-progress-container {
  margin-top: 2px; /* 再上移5px，从7px改为2px */
  margin-bottom: 8px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 现代化进度条样式 - 简化版 */
.my-typing-course-progress-bar {
  flex: 1;
  height: 8px;
  background: linear-gradient(90deg, #e2e8f0 0%, #cbd5e0 100%);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.dark .my-typing-course-progress-bar {
  background: linear-gradient(90deg, #4a5568 0%, #2d3748 100%);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.my-typing-course-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, 
    #4299e1 0%, 
    #3182ce 50%, 
    #2b6cb0 100%);
  border-radius: 4px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.my-typing-course-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(255, 255, 255, 0.4) 50%, 
    transparent 100%);
  animation: shimmer 2s infinite;
}

/* 根据进度设置不同的颜色和动画效果 */
.my-typing-course-progress-fill.low {
  background: linear-gradient(90deg, 
    #fc8181 0%, 
    #f56565 50%, 
    #e53e3e 100%);
}

.my-typing-course-progress-fill.medium {
  background: linear-gradient(90deg, 
    #f6ad55 0%, 
    #ed8936 50%, 
    #dd6b20 100%);
}

.my-typing-course-progress-fill.high {
  background: linear-gradient(90deg, 
    #4299e1 0%, 
    #3182ce 50%, 
    #2b6cb0 100%);
}

.my-typing-course-progress-fill.completed {
  background: linear-gradient(90deg, 
    #48bb78 0%, 
    #38a169 50%, 
    #2f855a 100%);
  animation: pulse 2s infinite;
}

/* 进度百分比样式 - 简化版 */
.my-typing-course-progress-percentage {
  font-size: 14px;
  font-weight: 700;
  color: #4299e1;
  min-width: 40px;
  text-align: right;
  flex-shrink: 0;
}

.dark .my-typing-course-progress-percentage {
  color: #63b3ed;
}

/* 动画定义 */
@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* 响应式设计 - 进度条部分 - 简化版 */
@media (max-width: 768px) {
  .my-typing-course-progress-container {
    gap: 8px;
  }
  
  .my-typing-course-progress-bar {
    height: 6px;
  }
  
  .my-typing-course-progress-percentage {
    font-size: 13px;
    min-width: 35px;
  }
}

@media (max-width: 480px) {
  .my-typing-course-progress-container {
    gap: 6px;
  }
  
  .my-typing-course-progress-bar {
    height: 5px;
  }
  
  .my-typing-course-progress-percentage {
    font-size: 12px;
    min-width: 30px;
  }
}

/* 确保在所有深色主题下课程标题都清晰可见 */
.cyberpunk-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.aurora-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.nebula-dark .typing-course-card-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.cyberpunk-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.aurora-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.nebula-dark .course-title {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* 为每个深色主题的课程卡片内容区域设置明确的背景色 */
.cyberpunk-dark .typing-course-card-content {
  background: #1a1f2e !important;
}

.aurora-dark .typing-course-card-content {
  background: #1a2337 !important;
}

.nebula-dark .typing-course-card-content {
  background: #1a1f3a !important;
}/* 主题切换按钮样式 */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-primary);
  transform: rotate(15deg);
}

.theme-toggle:active {
  transform: scale(0.95);
}

/* 主题切换动画 */
.theme-toggle svg {
  transition: all 0.3s ease;
}

/* 夜间模式下的样式 */
.dark .theme-toggle {
  color: var(--text-secondary);
}

.dark .theme-toggle:hover {
  background-color: var(--bg-hover);
  box-shadow: var(--shadow-medium);
}

/* 白天模式下的样式 */
.light .theme-toggle {
  color: var(--text-secondary);
}

.light .theme-toggle:hover {
  background-color: var(--bg-hover);
  box-shadow: 0 0 10px rgba(var(--accent-primary-rgb), 0.2);
}

/* 添加光晕效果 */
.theme-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: var(--glow-color);
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
  z-index: -1;
}

.theme-toggle:hover::before {
  width: 40px;
  height: 40px;
}

/* 添加脉冲动画 */
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--glow-color);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(var(--accent-primary-rgb), 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(var(--accent-primary-rgb), 0);
  }
}

.theme-toggle:focus {
  outline: none;
  animation: pulse 1.5s infinite;
}/* 忘记密码表单样式 */
.forgot-password-form {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 560px; /* 桌面更舒适宽度 */
}

.forgot-password-form h2 {
  text-align: left; /* 桌面视觉更自然 */
  margin-bottom: 1rem;
  color: #222;
  font-weight: 600;
}

.login-form .description {
  color: #666;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: #4a90e2;
  box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

.send-code-button {
  width: 100%;
  padding: 0.75rem;
  background-color: #3b82f6;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s;
  margin-bottom: 1rem;
}

.send-code-button:hover:not(:disabled) {
  background-color: #357abd;
}

.send-code-button:disabled {
  background-color: #bdc3c7;
  cursor: not-allowed;
}

.reset-button {
  width: 100%;
  padding: 0.75rem;
  background-color: #10b981;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s;
  margin-bottom: 1rem;
}

.reset-button:hover:not(:disabled) {
  background-color: #219a52;
}

.reset-button:disabled {
  background-color: #bdc3c7;
  cursor: not-allowed;
}

.back-link {
  text-align: center;
}

.back-button {
  background: none;
  border: none;
  color: #4a90e2;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: underline;
  padding: 0.5rem;
}

.back-button:hover {
  color: #357abd;
}

.error-message {
  color: #e74c3c;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background-color: #fdecea;
  border-radius: 8px;
  font-size: 0.9rem;
}

.success-message {
  color: #27ae60;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background-color: #e8f5e9;
  border-radius: 8px;
  font-size: 0.9rem;
}

/* 桌面优化：统一控件左右对齐，单列布局 */
.login-form .step-2 {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.login-form .step-2 .form-group,
.login-form .step-2 .login-button,
.login-form .step-2 .back-link {
  width: 100%;
}
.login-form .step-2 .back-link {
  text-align: center;
}:root {
  --founder-primary: #2563eb;
  --founder-accent: #7c3aed;
  --founder-bg-gradient: linear-gradient(135deg, var(--founder-primary) 0%, var(--founder-accent) 100%);
  --founder-card-bg: #ffffff;
  --founder-text-main: #1e293b;
  --founder-text-sub: #475569;
  --founder-border: #e2e8f0;
  --founder-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --founder-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --bg-alt: #f8fafc;
}

.founder-page {
  width: 100%;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--founder-text-main);
  background-color: #ffffff;
}

.founder-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* Hero Section */
.founder-hero {
  position: relative;
  padding: 80px 0 100px;
  background: var(--founder-bg-gradient);
  color: var(--text-inverse);
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

.founder-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.founder-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-badge {
  background: var(--bg-secondary);
  backdrop-filter: blur(8px);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
}

.hero-subtitle {
  font-size: 1.5rem;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 600px;
  line-height: 1.5;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-inverse);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  color: var(--accent-primary);
  padding: 16px 40px;
  border-radius: 100px;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  background: var(--bg-hover);
}

/* Sections */
.section {
  margin: 0;
  padding: 80px 0;
  width: 100%;
}

.section.alternate-bg {
  background-color: var(--bg-alt);
}

/* Dark themes: use theme variables for alternate sections */
[data-theme='dark'] .founder-page .section.alternate-bg,
.dark .founder-page .section.alternate-bg,
.aurora-dark .founder-page .section.alternate-bg,
.nebula-dark .founder-page .section.alternate-bg {
  background-color: var(--bg-primary);
}

[data-theme='dark'] .founder-page .section-title,
.dark .founder-page .section-title,
.aurora-dark .founder-page .section-title,
.nebula-dark .founder-page .section-title {
  color: var(--text-primary);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
  justify-content: center;
}

.section-icon {
  color: var(--founder-primary);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--founder-text-main);
  margin: 0;
}

/* Cards Grid */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--founder-card-bg);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid var(--founder-border);
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card.info {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 20px;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--founder-shadow-hover);
  border-color: var(--founder-primary);
}

.card-icon {
  color: var(--accent-secondary);
  background: var(--bg-tertiary);
  padding: 12px;
  border-radius: 12px;
  flex-shrink: 0;
}

.card-title-small {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-text {
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Commission Table */
.model-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
}

.model-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tertiary);
  color: var(--accent-primary);
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
}

.commission-table {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--founder-border);
  box-shadow: var(--founder-shadow);
}

.table-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr 1.2fr;
  padding: 20px 24px;
  background: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--founder-border);
}

.table-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr 1.2fr;
  padding: 24px;
  border-bottom: 1px solid var(--founder-border);
  align-items: center;
  transition: background 0.2s;
}

.table-row:last-child {
  border-bottom: none;
}

.table-row:hover {
  background: var(--bg-hover);
}

.highlight-cell {
  color: var(--founder-primary);
  font-weight: 700;
  font-size: 1.1rem;
}

.price-cell {
  font-family: monospace;
  font-size: 1.1rem;
  color: var(--founder-text-main);
}

.table-note {
  text-align: center;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-top: 16px;
}

/* Dark themes ensure high contrast for card text and table notes */
[data-theme='dark'] .founder-page .card-text,
.dark .founder-page .card-text,
.aurora-dark .founder-page .card-text,
.nebula-dark .founder-page .card-text,
[data-theme='dark'] .founder-page .table-note,
.dark .founder-page .table-note,
.aurora-dark .founder-page .table-note,
.nebula-dark .founder-page .table-note {
  color: var(--text-primary);
}

/* Notes Grid */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.note-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-secondary);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.note-item span {
  color: var(--text-primary);
}

.section.alternate-bg .note-item {
  background: var(--bg-secondary);
}

[data-theme='dark'] .founder-page .section.alternate-bg .note-item,
.dark .founder-page .section.alternate-bg .note-item,
.aurora-dark .founder-page .section.alternate-bg .note-item,
.nebula-dark .founder-page .section.alternate-bg .note-item {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme='dark'] .founder-page .note-item span,
.dark .founder-page .note-item span,
.aurora-dark .founder-page .note-item span,
.nebula-dark .founder-page .note-item span {
  color: var(--text-primary);
}

.note-icon {
  color: var(--color-success, #10b981);
  flex-shrink: 0;
  margin-top: 2px;
}

.note-item span {
  color: var(--founder-text-main);
  line-height: 1.6;
}

/* Price Banner */
.price-banner {
  background: var(--founder-bg-gradient);
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
  box-shadow: var(--founder-shadow-hover);
}

.price-banner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.price-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}

.price {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
}

.tag {
  background: rgba(255, 255, 255, 0.2);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.price-desc {
  font-size: 1.25rem;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

/* Theme Overrides: Cyberpunk Dark */
.cyberpunk-dark .founder-page {
  --founder-card-bg: var(--bg-secondary);
  --founder-text-main: #e6f0ff;
  --founder-text-sub: #a7b8ff;
  --founder-border: var(--border-color);
  --bg-alt: var(--bg-primary);
}

.cyberpunk-dark .section-title {
  color: var(--text-primary);
}

.cyberpunk-dark .card-icon {
  background: rgba(124, 58, 237, 0.18);
  color: #c084fc;
}

.cyberpunk-dark .commission-table {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.cyberpunk-dark .table-header {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.cyberpunk-dark .table-row {
  border-bottom: 1px solid var(--border-color);
}

.cyberpunk-dark .table-row:hover {
  background: var(--bg-tertiary);
}

.cyberpunk-dark .model-pill {
  background: rgba(37, 99, 235, 0.22);
  color: #ffffff;
}

.cyberpunk-dark .note-item {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.cyberpunk-dark .hero-subtitle {
  color: #e6f0ff;
  opacity: 1;
}

/* Ensure strong contrast in alternate sections under Cyberpunk theme */
.cyberpunk-dark .section.alternate-bg .note-item {
  background: var(--bg-secondary) !important;
  border-color: var(--border-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.35);
}

.cyberpunk-dark .section.alternate-bg .note-item span {
  color: var(--text-primary);
}

.cyberpunk-dark .section.alternate-bg .note-icon {
  color: #10b981;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .founder-hero {
    padding: 60px 0 80px;
  }

  .founder-hero h1 {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
    padding: 0 20px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .table-header {
    display: none;
  }

  .table-row {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 20px;
  }

  .table-row span {
    display: flex;
    justify-content: space-between;
    width: 100%;
    font-size: 1rem;
  }

  .table-row span::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--founder-text-sub);
  }

  .price-main {
    flex-direction: column;
    gap: 16px;
  }

  .price {
    font-size: 3rem;
  }
}.home-page {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: calc(100vh - var(--header-height));
  box-sizing: border-box;
}

/* --- Dashboard Styles --- */

.dashboard-container {
  padding: 32px 40px;
  max-width: var(--bp-xl);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 8px;
}

.welcome-message h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-message p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.action-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.dashboard-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-icon.blue {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
}

.stat-icon.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color, #10b981);
}

.stat-icon.purple {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent-secondary, #8b5cf6);
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-value .unit {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-left: 4px;
}

.dashboard-sections {
  display: grid;
  gap: 24px;
}

.section-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.card-body {
  padding: 24px;
}

.grid-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.quick-link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.quick-link-card:hover {
  background: var(--bg-secondary);
  border-color: var(--primary-color);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.link-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-primary);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.link-info {
  flex: 1;
}

.link-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.link-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
}

.quick-link-card .arrow {
  color: var(--text-tertiary);
  transition: transform 0.2s;
}

.quick-link-card:hover .arrow {
  color: var(--primary-color);
  transform: translateX(4px);
}

/* --- Landing Page Styles (Refined) --- */

.home-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* Hero Section */
.hero-section {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 0 80px;
  background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.05) 0%, transparent 40%),
    radial-gradient(circle at bottom left, rgba(124, 58, 237, 0.05) 0%, transparent 40%),
    var(--bg-primary);
  /* Changed from #ffffff to var(--bg-primary) */
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  z-index: 2;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.pill-icon {
  font-size: 1.1em;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  color: var(--accent-primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 48px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
}

.hero-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.hero-cta-button.primary {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.hero-cta-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.hero-cta-button.secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.hero-cta-button.secondary:hover {
  background: var(--bg-primary);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 24px 48px;
  background: var(--bg-secondary);
  /* Needs dark mode override */
  backdrop-filter: blur(12px);
  border-radius: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

/* Features Section */
.features-section {
  padding: 100px 0;
  background: var(--bg-primary);
}

.section-header {
  margin-bottom: 64px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-header.text-center {
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 24px;
  transition: all 0.3s ease;
  height: 100%;
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.1);
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon-wrapper.blue {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
}

.feature-icon-wrapper.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color, #10b981);
}

.feature-icon-wrapper.purple {
  background: rgba(124, 58, 237, 0.1);
  color: var(--accent-secondary, #7c3aed);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
  text-align: center;
  background: var(--bg-secondary);
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.section-title.white {
  color: var(--text-primary);
}

.cta-subtitle {
  font-size: 1.25rem;
  margin-bottom: 40px;
  color: var(--text-secondary);
}

/* CTA list spacing */
.cta-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  justify-items: center;
  margin: 24px 0 36px;
}

.cta-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-primary);
}

/* --- Dark Theme Overrides --- */
body.dark .hero-section {
  background: radial-gradient(circle at top right, rgba(77, 171, 247, 0.1) 0%, transparent 40%),
    radial-gradient(circle at bottom left, rgba(151, 117, 250, 0.1) 0%, transparent 40%),
    var(--bg-primary);
}

body.dark .gradient-text {
  text-shadow: var(--text-shadow);
}

body.dark .hero-stats {
  background: rgba(26, 35, 50, 0.8);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-glow);
}

body.dark .hero-badge-pill {
  background: rgba(77, 171, 247, 0.15);
  color: var(--accent-primary);
}

body.dark .feature-card {
  background: var(--bg-card);
  border-color: var(--border-color);
  box-shadow: var(--shadow-md);
}

body.dark .feature-card:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

body.dark .feature-icon-wrapper.blue {
  background: rgba(77, 171, 247, 0.15);
  color: var(--accent-primary);
}

body.dark .feature-icon-wrapper.green {
  background: rgba(81, 207, 102, 0.15);
  color: var(--success-color);
}

body.dark .feature-icon-wrapper.purple {
  background: rgba(151, 117, 250, 0.15);
  color: var(--accent-secondary);
}

body.dark .cta-section {
  background: var(--bg-secondary);
}

body.dark .cta-section::before {
  background: radial-gradient(circle at center, rgba(77, 171, 247, 0.15) 0%, transparent 70%);
}

body.dark .hero-cta-button.secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

body.dark .hero-cta-button.secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}
/* FileUpload组件样式 */
.file-upload {
  width: 100%;
  position: relative;
}

.upload-area {
  border: 2px dashed #ddd;
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: #fafafa;
  position: relative;
  z-index: 1;
}

.upload-area:hover {
  border-color: #3498db;
  background-color: #f0f7fb;
}

.upload-area.drag-over {
  border-color: #3498db;
  background-color: rgba(52, 152, 219, 0.1);
}

.upload-area.has-file {
  border-color: #28a745;
  background-color: rgba(40, 167, 69, 0.05);
}

.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.upload-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #3498db;
}

.upload-placeholder p {
  margin: 0;
  color: #2c3e50; /* 深色文字，提高可读性 */
  font-weight: 500; /* 增加字体粗细，提高可读性 */
}

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.file-icon {
  font-size: 1.5rem;
  color: #28a745;
}

.file-details {
  flex: 1;
}

.file-name {
  font-weight: 600;
  margin: 0;
  color: #2c3e50;
}

.file-size {
  color: #7f8c8d;
  font-size: 0.8rem;
  margin: 0;
}

.btn-clear {
  background-color: #e74c3c;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: background-color 0.2s ease;
}

.btn-clear:hover {
  background-color: #c0392b;
}

.error-message {
  background-color: #fee;
  color: #e74c3c;
  padding: 0.75rem;
  border-radius: 6px;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.error-icon {
  font-size: 1rem;
}/* 模态框中的课时创建表单样式 */
.lesson-create-modal {
  max-width: 100%;
}

.lesson-create-modal .form-group {
  margin-bottom: 1.5rem;
}

.lesson-create-modal .form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.lesson-create-modal .form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

.lesson-create-modal label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #2c3e50;
}

.lesson-create-modal input,
.lesson-create-modal textarea,
.lesson-create-modal select,
.lesson-create-modal .form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.lesson-create-modal input:focus,
.lesson-create-modal textarea:focus,
.lesson-create-modal select:focus,
.lesson-create-modal .form-input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.lesson-create-modal .error {
  border-color: #e74c3c;
}

.lesson-create-modal .error-message {
  color: #e74c3c;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.lesson-create-modal .progress-container {
  margin: 1.5rem 0;
}

.lesson-create-modal .progress-bar {
  height: 8px;
  background-color: #f1f1f1;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.lesson-create-modal .progress-fill {
  height: 100%;
  background-color: #3498db;
  transition: width 0.3s ease;
}

.lesson-create-modal .progress-text {
  text-align: center;
  font-size: 0.875rem;
  color: #7f8c8d;
}

.lesson-create-modal .form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #eee;
}

.lesson-create-modal .btn-primary,
.lesson-create-modal .btn-secondary,
.lesson-create-modal .btn-template {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.lesson-create-modal .btn-primary {
  background-color: #3498db;
  color: white;
}

.lesson-create-modal .btn-primary:hover:not(:disabled) {
  background-color: #2980b9;
}

.lesson-create-modal .btn-primary:disabled {
  background-color: #bdc3c7;
  cursor: not-allowed;
}

.lesson-create-modal .btn-secondary {
  background-color: #ecf0f1;
  color: #2c3e50;
}

.lesson-create-modal .btn-secondary:hover:not(:disabled) {
  background-color: #dde4e6;
}

.lesson-create-modal .btn-secondary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.lesson-create-modal .template-download-section {
  margin-bottom: 1rem;
  padding: 0.75rem;
  background-color: #f8f9fa;
  border-radius: 6px;
  border: 1px dashed #ddd;
}

.lesson-create-modal .template-hint {
  display: block;
  margin-bottom: 0.75rem;
  color: #6c757d;
  font-size: 0.9rem;
}

.lesson-create-modal .template-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.lesson-create-modal .btn-template {
  background-color: #28a745;
  color: white;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  white-space: nowrap;
}

.lesson-create-modal .btn-template:hover:not(:disabled) {
  background-color: #218838;
}

.lesson-create-modal .btn-template:disabled {
  background-color: #6c757d;
  cursor: not-allowed;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .lesson-create-modal .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .lesson-create-form-modal .form-row .form-group {
    margin-bottom: 1.5rem;
  }
  
  .lesson-create-form-modal .form-actions {
    flex-direction: column-reverse;
  }
  
  .lesson-create-form-modal .btn-primary,
  .lesson-create-form-modal .btn-secondary,
  .lesson-create-form-modal .btn-template {
    width: 100%;
  }
  
  .lesson-create-form-modal .template-download-section {
    padding: 0.5rem;
  }
  
  .lesson-create-modal .template-buttons {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .lesson-create-modal .btn-template {
    width: 100%;
  }
}

/* 模态框特定样式 */
.lesson-create-modal {
  background-color: rgba(0, 0, 0, 0.5);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.lesson-create-modal .modal-content {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  animation: lessonModalSlideIn 0.3s ease-out;
}

.lesson-create-modal .modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid #eee;
  background-color: #f8f9fa;
  border-radius: 12px 12px 0 0;
}

.lesson-create-modal .modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
  color: #2c3e50;
}

.lesson-create-modal .close-button {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #6c757d;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.lesson-create-modal .close-button:hover {
  background-color: #eee;
  color: #2c3e50;
}

.lesson-create-modal .modal-body {
  padding: 1.5rem;
}

.lesson-create-modal .upload-section {
  margin-top: 1rem;
}

.lesson-create-modal .upload-label,
.lesson-create-modal .template-label {
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: #2c3e50;
}

/* 动画效果 */
@keyframes lessonModalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 优化文件上传区域样式 */
.lesson-create-modal .upload-section .file-upload {
  border: 2px dashed #ddd;
  border-radius: 8px;
  padding: 1.5rem;
  background-color: #fafafa;
  transition: all 0.3s ease;
}

.lesson-create-modal .upload-section .file-upload:hover {
  border-color: #3498db;
  background-color: #f0f7fb;
}/* LessonForm 组件样式 - 主题风格优化 */
.lesson-form-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0;
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: 16px;
  border: 1px solid var(--accent-primary);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 0 20px rgba(var(--accent-primary-rgb), 0.3);
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
}

/* 顶部霓虹光效 */
.lesson-form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent, 
    var(--accent-primary), 
    transparent);
  filter: blur(1px);
  opacity: 0.8;
}

.lesson-form-container:hover {
  box-shadow: 
    0 12px 40px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 0 30px rgba(var(--accent-primary-rgb), 0.5);
  transform: translateY(-2px);
}

.lesson-form-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  color: var(--text-secondary, #6c757d);
  background: rgba(var(--bg-primary-rgb), 0.5);
  border-radius: 16px;
  min-height: 200px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.lesson-form {
  width: 100%;
}

.form-header {
  margin-bottom: 24px;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(90deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: 16px 16px 0 0;
}

.form-header h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.form-content {
  margin-bottom: 24px;
  padding: 0 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(var(--bg-primary-rgb), 0.5);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s ease;
  box-sizing: border-box;
  color: var(--text-primary);
  backdrop-filter: blur(4px);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.2);
  background: rgba(var(--bg-primary-rgb), 0.7);
  transform: translateY(-1px);
}

.form-input:hover {
  border-color: rgba(var(--accent-primary-rgb), 0.5);
}

.form-input.error {
  border-color: var(--error-color);
  box-shadow: 0 0 0 3px rgba(var(--error-color-rgb), 0.2);
}

.form-input:disabled {
  background-color: var(--bg-disabled);
  color: var(--text-disabled);
  cursor: not-allowed;
  border-color: var(--border-disabled);
}

textarea.form-input {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.checkbox-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-weight: normal;
  color: var(--text-secondary);
  font-size: 14px;
}

.checkbox-label input[type="checkbox"] {
  margin-right: 12px;
  width: auto;
  accent-color: var(--accent-primary);
}

.error-message {
  color: var(--error-color);
  font-size: 13px;
  margin-top: 6px;
  font-weight: 500;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.btn-primary,
.btn-secondary {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 100px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-on-primary);
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb), 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transition: left 0.5s;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--accent-primary-rgb), 0.4);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--bg-tertiary);
  color: var(--text-disabled);
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: rgba(var(--bg-primary-rgb), 0.5);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(var(--bg-primary-rgb), 0.8);
  color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary:disabled {
  background: var(--bg-disabled);
  color: var(--text-disabled);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .lesson-form-container {
    padding: 16px;
    margin: 10px;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
    order: 2;
  }
  
  .btn-secondary {
    order: 1;
    margin-bottom: 10px;
  }
}
/* 科技感玻璃效果登录表单样式 */
.login-form-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: transparent;
}

.login-form {
  background: var(--login-form-bg, rgba(255, 255, 255, 0.1));
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--login-form-border, rgba(255, 255, 255, 0.2));
  box-shadow: 
    var(--login-form-shadow, 0 8px 32px rgba(0, 0, 0, 0.2)),
    inset 0 1px 0 var(--login-form-inset-shadow, rgba(255, 255, 255, 0.2));
  padding: 2rem;
  border-radius: 20px;
  width: 100%;
  max-width: 420px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-form:hover {
  transform: translateY(-5px);
  box-shadow: 
    var(--login-form-hover-shadow, 0 15px 35px rgba(0, 0, 0, 0.3)),
    inset 0 1px 0 var(--login-form-hover-inset-shadow, rgba(255, 255, 255, 0.3));
}

/* 玻璃反光效果 */
.login-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: left 0.75s;
  z-index: 0;
}

.login-form:hover::before {
  left: 150%;
}

.login-form h2 {
  text-align: center;
  margin-bottom: 1.2rem;
  color: var(--login-form-title-color, #ffffff);
  font-size: 1.8rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
  text-shadow: var(--login-form-title-shadow, 0 2px 5px rgba(0, 0, 0, 0.2));
}

.form-group {
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--login-form-label-color, #e0e0e0);
  font-size: 0.95rem;
  transition: color 0.3s ease;
  text-align: left;
}

.form-group input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--login-form-input-border, rgba(255, 255, 255, 0.2));
  border-radius: 10px;
  font-size: 1rem;
  background: var(--login-form-input-bg, #1a2332);
  color: var(--login-form-input-color, #ffffff);
  transition: all 0.3s ease;
  box-sizing: border-box;
  position: relative;
  caret-color: var(--login-form-input-color, #ffffff);
  -webkit-text-fill-color: var(--login-form-input-color, #ffffff);
  background-clip: padding-box;
}

.form-group input::placeholder {
  color: var(--login-form-input-placeholder, rgba(255, 255, 255, 0.6));
  transition: opacity 0.3s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--login-form-input-focus-border, rgba(120, 119, 198, 0.6));
  background: var(--login-form-input-focus-bg, #1e2433);
  box-shadow: var(--login-form-input-focus-shadow, 0 0 0 2px rgba(120, 119, 198, 0.3));
}

.form-group input:focus + .input-highlight {
  width: 100%;
}

/* 输入框聚焦动画效果 */
.form-group {
  position: relative;
}

.form-group::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  transition: width 0.3s ease, left 0.3s ease;
  transform: translateX(-50%);
}

.form-group:focus-within::after {
  width: 100%;
  left: 50%;
}

/* 输入框聚焦时标签颜色变化 */
.form-group:focus-within label {
  color: #a8edea;
}

.error-message {
  color: #ff6b6b;
  margin-bottom: 1rem;
  padding: 0.6rem;
  background: rgba(255, 107, 107, 0.1);
  border-radius: 8px;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 107, 107, 0.2);
  position: relative;
  z-index: 1;
}

.login-button {
  width: 100%;
  padding: 0.9rem;
  background: var(--login-button-bg, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
  color: var(--login-button-color, white);
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  overflow: hidden;
  box-shadow: var(--login-button-shadow, 0 4px 15px rgba(102, 126, 234, 0.4));
}

.login-button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--login-button-hover-shadow, 0 6px 20px rgba(102, 126, 234, 0.6));
}

.login-button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--login-button-active-shadow, 0 2px 10px rgba(102, 126, 234, 0.4));
}

.login-button:disabled {
  background: var(--login-button-disabled-bg, linear-gradient(135deg, #4a5568 0%, #2d3748 100%));
  cursor: not-allowed;
  box-shadow: none;
}

/* 加载动画效果 */
.login-button.loading {
  color: transparent;
  pointer-events: none;
}

.login-button.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-left: -10px;
  margin-top: -10px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.demo-accounts {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--login-demo-border, rgba(255, 255, 255, 0.1));
  font-size: 0.85rem;
  color: var(--login-demo-text-color, #e0e0e0);
  position: relative;
  z-index: 1;
}

.demo-accounts h3 {
  margin-bottom: 0.8rem;
  font-size: 1rem;
  color: var(--login-demo-title-color, #ffffff);
}

.demo-accounts ul {
  padding-left: 1.5rem;
  margin: 0;
}

.demo-accounts li {
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

/* 登录页底部链接与按钮间距微调 */
.login-links {
  margin-top: 1.25rem;
}
.form-group input[type="password"] {
  color: var(--login-form-input-color, #ffffff);
  -webkit-text-fill-color: var(--login-form-input-color, #ffffff);
  background: var(--login-form-input-bg, #1a2332);
}

/* 修复自动填充低对比度问题 */
.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--login-form-input-color, #2d3748) !important;
  transition: background-color 50000s ease-in-out 0s;
  -webkit-box-shadow: 0 0 0px 1000px var(--login-form-input-bg, #1a2332) inset !important;
}

body.dark .login-form .form-group input,
body.cyberpunk-dark .login-form .form-group input {
  background: var(--login-form-input-bg, #1a2332);
  color: var(--login-form-input-color, #ffffff);
}

body.dark .login-form .form-group input:focus,
body.cyberpunk-dark .login-form .form-group input:focus {
  background: var(--login-form-input-focus-bg, #1e2433);
}
.login-links {
  margin-top: 1.25rem;
}
.login-links a {
  color: var(--login-links-color, #3b82f6);
  font-weight: 500;
}
.login-links a:hover {
  text-decoration: underline;
}

/* 暗色主题下的可读性增强 */
body.dark .login-links a,
body.cyberpunk-dark .login-links a,
body.nebula-dark .login-links a {
  color: #7aa2ff;
}
body.dark .login-links a:hover,
body.cyberpunk-dark .login-links a:hover,
body.nebula-dark .login-links a:hover {
  color: #a8c7ff;
}/* 支付模态框样式 */

.payment-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.payment-modal {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.payment-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid #e8e8e8;
  background: #fafafa;
  border-radius: 8px 8px 0 0;
}

.payment-modal-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.close-button {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.close-button:hover {
  background-color: #f5f5f5;
  color: #666;
}

.payment-modal-content {
  padding: 24px;
}

.payment-info {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 20px;
}

.payment-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.payment-item:last-child {
  margin-bottom: 0;
}

.payment-item label {
  font-weight: 500;
  color: #666;
}

.payment-item span {
  color: #333;
}

.payment-item .amount {
  font-size: 18px;
  font-weight: 600;
  color: #ff6b35;
}

.payment-method-selection {
  margin-bottom: 20px;
}

.payment-method-selection h3 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: #333;
}

.payment-methods {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.payment-method-option {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border: 2px solid #e8e8e8;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.payment-method-option:hover {
  border-color: #1890ff;
}

.payment-method-option input[type="radio"] {
  margin-right: 12px;
  width: 18px;
  height: 18px;
}

.payment-method-label {
  font-size: 14px;
  font-weight: 500;
  color: #333;
}

.qr-code-section {
  text-align: center;
  margin-bottom: 20px;
}

.qr-code-section h3 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: #333;
}

.qr-code-container {
  background: white;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 20px;
  display: inline-block;
}

.qr-code {
  width: 200px;
  height: 200px;
  margin-bottom: 12px;
}

.qr-code-hint {
  margin: 0;
  font-size: 14px;
  color: #666;
}

.payment-status {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 20px;
}

.order-info,
.status-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.order-info:last-child,
.status-info:last-child {
  margin-bottom: 0;
}

.order-info label,
.status-info label {
  font-weight: 500;
  color: #666;
}

.order-info span,
.status-info span {
  color: #333;
  font-family: 'Courier New', monospace;
}

.status {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.status.pending {
  background: #fff7e6;
  color: #fa8c16;
}

.status.success {
  background: #f6ffed;
  color: #52c41a;
}

.status.failed {
  background: #fff2f0;
  color: #ff4d4f;
}

.status.cancelled {
  background: #f5f5f5;
  color: #8c8c8c;
}

.status.expired {
  background: #fff2f0;
  color: #ff4d4f;
}

/* 取消确认对话框样式 */
.cancel-confirm-dialog {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1001;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.cancel-confirm-content {
  background: white;
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  max-width: 320px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cancel-confirm-content h3 {
  margin: 0 0 12px 0;
  font-size: 18px;
  color: #333;
}

.cancel-confirm-content p {
  margin: 0 0 20px 0;
  color: #666;
  font-size: 14px;
}

.cancel-confirm-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.cancel-confirm-buttons .btn {
  min-width: 80px;
  padding: 8px 16px;
  font-size: 14px;
}

.qr-countdown {
  text-align: center;
  color: #ff4d4f;
  font-size: 14px;
  font-weight: 500;
  margin-top: 10px;
}

.payment-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid #e8e8e8;
  background: #fafafa;
  border-radius: 0 0 8px 8px;
}

.polling-hint {
  margin: 8px 0 0 0;
  font-size: 12px;
  color: #666;
  font-style: italic;
  text-align: center;
  width: 100%;
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  min-width: 80px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: #1890ff;
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: #40a9ff;
}

.btn-secondary {
  background: #f5f5f5;
  color: #666;
  border: 1px solid #d9d9d9;
}

.btn-secondary:hover:not(:disabled) {
  background: #e8e8e8;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .payment-modal {
    width: 95%;
    margin: 20px;
  }
  
  .payment-modal-header,
  .payment-modal-content,
  .payment-modal-footer {
    padding: 16px;
  }
  
  .payment-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  .payment-modal-footer {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}.message-center-container { width: 100%; margin: 0; padding: 16px 24px; }
.message-center-header { margin-bottom: 16px; }
.message-center-header h1 { font-size: 1.8rem; color: var(--text-primary); margin: 0; }

.messages-table-container { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
.messages-table-container h2 { font-size: 1rem; margin: 0; padding: 12px 16px; border-bottom: 1px solid var(--border-color); background: var(--bg-tertiary); color: var(--text-primary); }

.messages-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.messages-table th, .messages-table td { padding: 12px 14px; border-bottom: 1px solid var(--border-color); color: var(--text-primary); }
.messages-table th { background: var(--bg-tertiary); }

/* 让容器铺满屏幕宽度 */
.message-center-container .messages-table-container { width: 100%; }

/* 响应式：平板与手机 */
@media (max-width: 1024px) { .message-center-container { padding: 12px 16px; } .messages-table th:nth-child(3), .messages-table td:nth-child(3) { max-width: 320px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } }
@media (max-width: 768px) {
  .message-center-container { padding: 10px 12px; }
  .messages-table-container { border-radius: 10px; }
  .messages-table { display: block; overflow-x: auto; min-width: 480px; }
  .messages-table th, .messages-table td { padding: 10px 12px; }
}
@media (max-width: 480px) {
  .message-center-header h1 { font-size: 1.4rem; }
  .messages-table-container h2 { font-size: 0.95rem; padding: 10px 12px; }
  .messages-table { min-width: 360px; }
  .messages-table th, .messages-table td { padding: 8px 10px; }
}

.feedback-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--overlay-bg, rgba(0, 0, 0, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: var(--overlay-blur, blur(4px));
}

.feedback-modal {
  background-color: var(--bg-card);
  border-radius: 16px;
  width: 90%;
  max-width: 640px;
  padding: 24px;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  font-family: system-ui, -apple-system, sans-serif;
  position: relative;
  border: 1px solid var(--border-color);
}

.feedback-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: background-color 0.2s, color 0.2s;
}

.feedback-close-btn:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.feedback-header {
  margin-bottom: 24px;
}

.feedback-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 8px 0;
  color: var(--text-primary);
}

.feedback-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

.feedback-context {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
}

.context-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 12px;
}

.context-item:last-child {
  margin-bottom: 0;
}

.context-label {
  background-color: var(--bg-tertiary, #343a40);
  color: var(--text-secondary);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 6px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.context-text {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.4;
}

.feedback-section-title {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.feedback-section-title span {
  color: #666;
  font-size: 13px;
  margin-left: 8px;
}

.feedback-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.feedback-option {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 12px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.feedback-option:hover {
  background-color: var(--bg-card);
}

.feedback-option.selected {
  background-color: rgba(var(--primary-color-rgb, 114, 72, 185), 0.15);
  border-color: var(--primary-color);
}

.checkbox-indicator {
  width: 18px;
  height: 18px;
  background-color: var(--bg-tertiary, #343a40);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.feedback-option.selected .checkbox-indicator {
  background-color: var(--primary-color);
  color: white;
}

.option-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.option-desc {
  font-size: 12px;
  color: var(--text-tertiary, #888);
}

.feedback-textarea {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  color: var(--text-primary);
  font-size: 14px;
  resize: none;
  height: 100px;
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.feedback-textarea::placeholder {
  color: var(--text-tertiary);
}

.feedback-textarea:focus {
  border-color: var(--primary-color);
}

.feedback-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border-color, #cbd5e1);
  color: var(--text-primary, #0f172a);
  box-shadow: var(--shadow-sm);
}

.btn-cancel {
  background-color: var(--btn-secondary-bg, var(--bg-card, #f8fafc));
  border: 1.25px solid var(--btn-secondary-border, var(--border-color, #cbd5e1));
  color: var(--btn-secondary-text, var(--text-primary, #0f172a)) !important;
}

.btn-cancel:hover {
  background-color: var(--btn-secondary-hover-bg, var(--bg-secondary, #eef2f7));
  border-color: var(--btn-secondary-hover-border, var(--border-color, #cbd5e1));
}

.btn-submit {
  background-color: var(--btn-primary-bg, var(--primary-color, #3b82f6));
  border: 1.25px solid var(--btn-primary-border, var(--btn-primary-bg, #3b82f6));
  color: var(--btn-primary-text, #ffffff) !important;
}

.btn-submit:hover {
  background-color: var(--btn-primary-hover, var(--primary-hover, #2563eb));
}

.btn-submit:focus {
  outline: 2px solid var(--primary-hover);
  outline-offset: 2px;
}

.btn-submit:disabled {
  background-color: var(--btn-primary-disabled-bg, #93c5fd);
  color: var(--btn-primary-disabled-text, #ffffff) !important;
  border-color: var(--btn-primary-disabled-border, #93c5fd);
  cursor: not-allowed;
  opacity: 0.85;
}

/* 强制覆盖浅色主题的全局 .light .btn { color: white !important } 规则 */
.feedback-modal .btn.btn-cancel,
.light .feedback-modal .btn.btn-cancel {
  color: var(--btn-secondary-text, var(--text-primary, #0f172a)) !important;
  background-color: var(--btn-secondary-bg, var(--bg-card, #ffffff));
  border-color: var(--btn-secondary-border, var(--border-color, #cbd5e1));
}

.feedback-modal .btn.btn-cancel:hover,
.light .feedback-modal .btn.btn-cancel:hover {
  background-color: var(--btn-secondary-hover-bg, var(--bg-secondary, #eef2f7));
  border-color: var(--btn-secondary-hover-border, var(--border-color, #cbd5e1));
}

.feedback-modal .btn.btn-submit,
.light .feedback-modal .btn.btn-submit {
  color: var(--btn-primary-text, #ffffff) !important;
  background-color: var(--btn-primary-bg, var(--primary-color, #3b82f6));
  border-color: var(--btn-primary-border, var(--primary-color, #3b82f6));
}

.feedback-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.feedback-input-item label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.feedback-input-item input {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text-primary);
  outline: none;
}

.feedback-input-item input::placeholder {
  color: var(--text-tertiary);
}

.feedback-input-item input:focus {
  border-color: var(--primary-color);
}

.context-clickable {
  cursor: pointer;
  border-radius: 8px;
  padding: 6px;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.context-clickable:hover {
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
}

.context-clickable:active {
  background-color: rgba(var(--primary-color-rgb, 114, 72, 185), 0.12);
}

.play-icon {
  color: var(--text-secondary);
}

.context-clickable:hover .play-icon {
  color: var(--primary-color);
}.sws-upload-box { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; background: var(--bg-secondary); border: 1px dashed var(--border-color); border-radius: 12px; padding: 16px; }
.sws-upload-info { display: flex; flex-direction: column; gap: 4px; }
.sws-upload-title { font-weight: 700; color: var(--text-primary); }
.sws-upload-sub { font-size: 12px; color: var(--text-secondary); }
.sws-upload-actions { display: flex; align-items: center; gap: 12px; }
.sws-upload-filename { font-size: 12px; color: var(--text-secondary); }
.sws-upload-input { display: none; }

.sws-plan-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sws-plan-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 8px; cursor: pointer; }
.sws-plan-card.active { border-color: var(--accent-primary); box-shadow: var(--shadow-sm); }
.sws-plan-card-header { display: flex; justify-content: space-between; align-items: center; }
.sws-plan-name { font-weight: 700; color: var(--text-primary); }
.sws-plan-price { font-weight: 700; color: var(--accent-primary); }
.sws-plan-meta { font-size: 13px; color: var(--text-secondary); }
.sws-plan-req { font-size: 13px; color: var(--text-primary); }
.sws-plan-select { display: flex; align-items: center; gap: 8px; }

@media (max-width: 640px) { .sws-plan-cards { grid-template-columns: 1fr; } .sws-upload-box { grid-template-columns: 1fr; gap: 8px; } .sws-upload-actions { justify-content: space-between; } }

/* 基于共创合伙页面风格的学生勤工酬学页样式 */
:root {
  --sws-primary: var(--accent-primary, #2563eb);
  --sws-accent: var(--accent-secondary, #7c3aed);
  --sws-text-main: var(--text-primary, #1e293b);
  --sws-text-sub: var(--text-secondary, #475569);
  --sws-border: var(--border-color, #e2e8f0);
}

.sws-page {
  width: 100%;
  margin: 0;
  padding: 0;
}

.sws-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.sws-hero {
  padding: 80px 0 100px;
  background: linear-gradient(135deg, var(--sws-primary), var(--sws-accent));
  color: var(--text-inverse);
  text-align: center;
  position: relative;
}

.sws-hero-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.sws-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.sws-hero-badge {
  background: var(--bg-secondary);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.sws-hero-subtitle {
  font-size: 1.25rem;
  max-width: 720px;
  margin: 16px auto 24px;
  opacity: 0.95;
}

.sws-hero-note {
  font-size: 0.9rem;
  max-width: 720px;
  margin: 4px auto 8px;
  color: var(--text-secondary);
}

/* 名额剩余动态条（置于Hero中，适配深色背景） */
.slots-bar-container {
  max-width: 720px;
  margin: 12px auto 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slots-bar-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-inverse);
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.slots-bar-percent {
  opacity: 0.9;
}

.slots-bar-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.35);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.slots-bar-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #22c55e, #84cc16);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.6);
  transition: width 900ms cubic-bezier(0.25, 0.8, 0.25, 1);
}

.sws-section-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 12px;
}

.sws-footer-note {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 16px 0 24px;
}

.sws-hero-actions {
  margin-top: 12px;
}

.sws-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  color: var(--accent-primary);
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
}

.sws-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  background: var(--bg-hover);
}

.sws-section {
  padding: 72px 0;
}

.sws-section.alternate-bg {
  background: var(--bg-primary);
}

.sws-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  margin-bottom: 36px;
}

.sws-section-icon {
  color: var(--sws-primary);
}

.sws-section-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--sws-text-main);
  margin: 0;
}

.sws-grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.sws-card {
  background: var(--bg-secondary, #fff);
  border: 1px solid var(--sws-border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.sws-card-icon {
  color: var(--accent-secondary);
  background: var(--bg-tertiary);
  padding: 10px;
  border-radius: 12px;
}

.sws-card-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--sws-text-main);
  margin-bottom: 6px;
}

.sws-card-text {
  color: var(--sws-text-sub);
  line-height: 1.6;
}

.sws-notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

.sws-note-item {
  background: var(--bg-secondary, #fff);
  border: 1px solid var(--sws-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.sws-note-icon {
  color: #10b981;
  margin-top: 2px;
}

.sws-note-item span {
  color: var(--sws-text-main);
}

.sws-grid-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.sws-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  background: var(--bg-secondary, #fff);
  border: 1px solid var(--sws-border);
  border-radius: 12px;
  padding: 16px;
}

.sws-step-index {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--sws-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.sws-step-title {
  font-weight: 700;
  color: var(--sws-text-main);
}

.sws-step-text {
  color: var(--sws-text-sub);
  line-height: 1.6;
}

/* Cyberpunk 深色主题覆盖提高对比度 */
/* Dark theme generic overrides */
[data-theme='dark'] .sws-page,
.dark .sws-page {
  --sws-text-main: var(--text-primary);
  --sws-text-sub: var(--text-secondary);
  --sws-border: var(--border-color);
}

[data-theme='dark'] .sws-section.alternate-bg,
.dark .sws-section.alternate-bg {
  background: var(--bg-primary);
}

[data-theme='dark'] .sws-card,
[data-theme='dark'] .sws-note-item,
[data-theme='dark'] .sws-step,
.dark .sws-card,
.dark .sws-note-item,
.dark .sws-step {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme='dark'] .sws-section-title,
.dark .sws-section-title {
  color: var(--text-primary) !important;
}

[data-theme='dark'] .sws-note-item span,
.dark .sws-note-item span {
  color: var(--text-primary) !important;
}

[data-theme='dark'] .sws-step-text,
.dark .sws-step-text {
  color: var(--text-primary) !important;
}

[data-theme='dark'] .sws-card-icon,
.dark .sws-card-icon {
  background: var(--bg-tertiary);
  color: var(--accent-secondary);
}

/* Cyberpunk dark specific */
.cyberpunk-dark .sws-page {
  --sws-text-main: #e6f0ff;
  --sws-text-sub: #a7b8ff;
  --sws-border: var(--border-color);
}

.cyberpunk-dark .sws-section.alternate-bg {
  background: var(--bg-primary);
}

.cyberpunk-dark .sws-card,
.cyberpunk-dark .sws-note-item,
.cyberpunk-dark .sws-step {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.cyberpunk-dark .sws-section-title {
  color: var(--text-primary);
}

.cyberpunk-dark .sws-note-item span {
  color: var(--text-primary);
}

.cyberpunk-dark .sws-card-icon {
  background: rgba(124, 58, 237, 0.18);
  color: #c084fc;
}

/* Aurora dark theme overrides */
.aurora-dark .sws-page {
  --sws-text-main: var(--text-primary);
  --sws-text-sub: var(--text-secondary);
  --sws-border: var(--border-color);
}

.aurora-dark .sws-section.alternate-bg {
  background: var(--bg-primary);
}

.aurora-dark .sws-card,
.aurora-dark .sws-note-item,
.aurora-dark .sws-step {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.aurora-dark .sws-section-title {
  color: var(--text-primary);
}

.aurora-dark .sws-note-item span {
  color: var(--text-primary);
}

.aurora-dark .sws-step-text {
  color: var(--text-primary);
}

/* Nebula dark theme overrides */
.nebula-dark .sws-page {
  --sws-text-main: var(--text-primary);
  --sws-text-sub: var(--text-secondary);
  --sws-border: var(--border-color);
}

.nebula-dark .sws-section.alternate-bg {
  background: var(--bg-primary);
}

.nebula-dark .sws-card,
.nebula-dark .sws-note-item,
.nebula-dark .sws-step {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.nebula-dark .sws-section-title {
  color: var(--text-primary);
}

.nebula-dark .sws-note-item span {
  color: var(--text-primary);
}

.nebula-dark .sws-step-text {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .sws-hero {
    padding: 60px 0 80px;
  }

  .sws-hero h1 {
    font-size: 2.2rem;
  }

  .sws-hero-subtitle {
    font-size: 1rem;
  }
}/* 我的课程页面样式 - 统一项目主题风格 */

.my-courses-page {
  width: 100%;
  min-height: calc(100vh - 70px);
  padding: 2rem;
  background-color: var(--bg-primary);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-primary);
}

.page-header {
  margin-bottom: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 2rem;
}

.header-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0 0 0.5rem 0;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin: 0;
}

.header-stats {
  display: flex;
  gap: 1.5rem;
}

.stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 100px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.stat-box.success .stat-number {
  color: var(--color-success);
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.courses-container {
  max-width: 1400px;
  margin: 0 auto;
}

.my-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.my-course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  height: 100%;
}

.my-course-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.card-image-wrapper {
  height: 160px;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card-image-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239C92AC' fill-opacity='0.05' fill-rule='evenodd'%3E%3Ccircle cx='3' cy='3' r='3'/%3E%3Ccircle cx='13' cy='13' r='3'/%3E%3C/g%3E%3C/svg%3E");
}

.course-placeholder-icon {
  font-size: 4rem;
  z-index: 1;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s ease;
}

.my-course-card:hover .course-placeholder-icon {
  transform: scale(1.1);
}

.course-status-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.course-status-badge.completed {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.course-status-badge.in-progress {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 3.5rem;
  /* Ensure consistent height for 2 lines */
}

.card-stats {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.stat-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
}

.stat-row span {
  flex: 0 0 auto;
  min-width: 0;
}

.stat-row span:nth-child(2) {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stat-row span:last-child {
  flex: 0 0 auto;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stat-row .icon {
  font-size: 1rem;
  flex: 0 0 auto;
}

.stat-row .icon {
  font-size: 1rem;
}

.progress-section {
  margin-top: auto;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.progress-info .percentage {
  font-weight: 600;
  color: var(--accent-primary);
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: rgba(var(--bg-card-rgb), 0.5);
}

.continue-btn {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.continue-btn:hover {
  background: var(--bg-tertiary);
  color: var(--accent-primary);
}

.continue-btn .arrow {
  transition: transform 0.2s ease;
}

.continue-btn:hover .arrow {
  transform: translateX(4px);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-card);
  border-radius: 24px;
  border: 1px dashed var(--border-color);
  margin-top: 2rem;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.browse-btn {
  padding: 0.75rem 2rem;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 1.5rem;
}

.browse-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Responsive */
@media (max-width: 768px) {
  .my-courses-page {
    padding: 1rem;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .header-stats {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .stat-box {
    min-width: 120px;
  }

  .my-courses-grid {
    grid-template-columns: 1fr;
  }

  .card-stats {
    grid-template-columns: 1fr;
  }
}/* 极简模态框样式 - 解决所有层级问题 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 200000;
  padding: 0.5rem;
}

.modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  width: auto;
  max-width: calc(100vw - 1rem);
  max-height: 80vh;
  overflow: hidden; /* 改为hidden，让内部自己处理滚动 */
  animation: modalSlideIn 0.3s ease-out;
  display: flex;
  flex-direction: column;
}

.modal-small {
  max-width: 400px;
}

.modal-medium {
  max-width: 600px;
}

.modal-large {
  max-width: 1600px;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #eee;
  background: white;
  border-radius: 12px 12px 0 0;
  flex-shrink: 0; /* 防止被压缩 */
}

.modal-title {
  font-size: 1.5rem;
  color: #2c3e50;
  margin: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #95a5a6;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.modal-close-btn:hover {
  background-color: #f5f5f5;
  color: #2c3e50;
}

.modal-body {
  padding: 2rem;
  overflow-y: auto; /* 让内容区域自己处理滚动 */
  flex: 1 1 auto; /* 确保flex项目正确收缩 */
  min-height: 0; /* 防止flex项目溢出 */
  max-height: calc(80vh - 120px); /* 减去header和padding高度 */
}

/* 深色主题适配 */
[data-theme='dark'] .modal-header {
  background: rgba(30, 41, 59, 0.95); /* 半透明深色背景 */
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    max-height: 90vh;
  }
  
  .modal-header {
    padding: 1rem 1.5rem;
  }
  
  .modal-title {
    font-size: 1.25rem;
  }
  
  .modal-body {
    padding: 1.5rem;
  }
}/* 帮助系统模态框样式 */

.help-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: helpModalFadeIn 0.3s ease-out;
}

/* 淡入动画 */
@keyframes helpModalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.help-modal {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  max-height: 90vh;
  width: 90vw;
  display: flex;
  flex-direction: column;
  animation: helpModalSlideIn 0.3s ease-out;
  overflow: hidden;
}

/* 滑入动画 */
@keyframes helpModalSlideIn {
  from {
    transform: translateY(-50px) scale(0.95);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

/* 头部样式 */
.help-modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 32px 16px;
  border-bottom: 1px solid #e9ecef;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.help-modal__title {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
}

.help-modal__close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 20px;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.help-modal__close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* 内容样式 */
.help-modal__content {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
  max-height: calc(90vh - 120px);
}

/* 帮助部分样式 */
.help-section {
  margin-bottom: 32px;
}

.help-section__title {
  margin: 0 0 16px 0;
  font-size: 20px;
  font-weight: 600;
  color: #2c3e50;
  border-bottom: 2px solid #3498db;
  padding-bottom: 8px;
}

/* 快捷键样式 */
.help-shortcuts {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.help-shortcut__group {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 20px;
}

.help-shortcut__group-title {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: #495057;
  display: flex;
  align-items: center;
}

.help-shortcut__group-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: #3498db;
  margin-right: 8px;
  border-radius: 2px;
}

.help-shortcut__item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #e9ecef;
}

.help-shortcut__item:last-child {
  border-bottom: none;
}

.help-shortcut__key {
  background: #495057;
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  min-width: 100px;
}

.help-shortcut__description {
  font-weight: 500;
  color: #2c3e50;
  font-size: 15px;
}

.help-shortcut__usage {
  color: #6c757d;
  font-size: 13px;
  font-style: italic;
}

/* 使用指南样式 */
.help-guide {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.help-guide__step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #2ecc71;
}

.help-guide__step-number {
  background: #2ecc71;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.help-guide__step-content h4 {
  margin: 0 0 8px 0;
  font-size: 16px;
  font-weight: 600;
  color: #2c3e50;
}

.help-guide__step-content p {
  margin: 0;
  color: #6c757d;
  line-height: 1.5;
}

/* 功能说明样式 */
.help-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.help-feature {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 20px;
}

.help-feature h4 {
  margin: 0 0 12px 0;
  font-size: 16px;
  font-weight: 600;
  color: #2c3e50;
  border-bottom: 2px solid #e74c3c;
  padding-bottom: 4px;
}

.help-feature ul {
  margin: 0;
  padding-left: 16px;
}

.help-feature li {
  margin-bottom: 8px;
  color: #495057;
  line-height: 1.4;
}

.help-feature li:last-child {
  margin-bottom: 0;
}

.help-feature strong {
  color: #e74c3c;
}

/* 底部样式 */
.help-modal__footer {
  padding: 16px 32px 24px;
  border-top: 1px solid #e9ecef;
  text-align: center;
}

.help-modal__close-btn {
  background: #6c757d;
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 32px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.help-modal__close-btn:hover {
  background: #495057;
  transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .help-modal {
    width: 95vw;
    max-height: 95vh;
    margin: 20px;
  }
  
  .help-modal__header {
    padding: 20px 24px 16px;
  }
  
  .help-modal__title {
    font-size: 20px;
  }
  
  .help-modal__content {
    padding: 20px 24px;
    max-height: calc(95vh - 120px);
  }
  
  .help-shortcut__item {
    grid-template-columns: 1fr;
    gap: 8px;
    text-align: center;
  }
  
  .help-shortcut__key {
    min-width: auto;
    justify-self: center;
  }
  
  .help-features {
    grid-template-columns: 1fr;
  }
  
  .help-guide__step {
    flex-direction: column;
    text-align: center;
  }
  
  .help-guide__step-number {
    align-self: center;
  }
}

@media (max-width: 480px) {
  .help-modal {
    border-radius: 12px;
  }
  
  .help-modal__header {
    padding: 16px 20px 12px;
  }
  
  .help-modal__title {
    font-size: 18px;
  }
  
  .help-modal__content {
    padding: 16px 20px;
  }
  
  .help-section {
    margin-bottom: 24px;
  }
  
  .help-section__title {
    font-size: 18px;
  }
  
  .help-shortcut__group {
    padding: 16px;
  }
  
  .help-guide__step {
    padding: 12px;
  }
  
  .help-modal__footer {
    padding: 12px 20px 16px;
  }
}

/* 深色主题支持 */
@media (prefers-color-scheme: dark) {
  .help-modal {
    background: #2d3748;
    color: #e2e8f0;
  }
  
  .help-modal__header {
    background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
    border-bottom-color: #4a5568;
  }
  
  .help-section__title {
    color: #e2e8f0;
    border-bottom-color: #63b3ed;
  }
  
  .help-shortcut__group {
    background: #4a5568;
  }
  
  .help-shortcut__group-title {
    color: #e2e8f0;
  }
  
  .help-shortcut__description {
    color: #e2e8f0;
  }
  
  .help-shortcut__usage {
    color: #a0aec0;
  }
  
  .help-guide__step {
    background: #4a5568;
  }
  
  .help-guide__step-content h4 {
    color: #e2e8f0;
  }
  
  .help-guide__step-content p {
    color: #a0aec0;
  }
  
  .help-feature {
    background: #4a5568;
  }
  
  .help-feature h4 {
    color: #e2e8f0;
    border-bottom-color: #fc8181;
  }
  
  .help-feature li {
    color: #a0aec0;
  }
  
  .help-feature strong {
    color: #fc8181;
  }
  
  .help-modal__footer {
    border-top-color: #4a5568;
  }
}/* 提示卡片样式 - 独立于答案卡片，避免样式冲突 */

/* 基础提示卡片样式 - 只保留内容样式，定位由父容器控制 */
.hint-card {
  border-radius: 8px;
  box-shadow: none;
  padding: 16px;
  transition: all 0.3s ease;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  pointer-events: auto;
}

/* ==================== 提示卡片内容样式 ==================== */

/* 提示卡片主体 */
.hint-card-body {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  width: fit-content !important;
  max-width: 100% !important;
  margin: 0 auto !important;
  padding: 0 !important;
  text-align: center !important;
}

/* 音标样式 */
.hint-phonetic {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 0;
  font-family: 'Lucida Sans Unicode', 'Arial Unicode MS', Arial, sans-serif;
}

/* 内容样式 */
.hint-content {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 auto !important;
  padding: 0 !important;
  text-align: center !important;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.4;
  /* 强制内容换行 */
  word-wrap: break-word !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  max-width: 100% !important;
}

/* 分隔线样式 */
.hint-divider {
  width: 70%;
  height: 1.5px;
  background: linear-gradient(90deg,
      rgba(77, 171, 247, 0) 0%,
      rgba(77, 171, 247, 0.8) 50%,
      rgba(77, 171, 247, 0) 100%);
  margin: 2px auto;
  clear: both;
  position: relative;
  z-index: 1;
}

/* 翻译样式 */
.hint-translation {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 4px;
  margin-bottom: 4px;
  /* 强制翻译内容换行 */
  word-wrap: break-word !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  max-width: 100% !important;
}

.hint-translation-text {
  font-style: italic;
}

/* 提示样式 */
.hint-section {
  font-size: 13px;
  color: var(--text-secondary);
  background: transparent;
  padding: 6px;
  border-radius: 4px;
  margin-top: 4px;
}

.hint-label {
  font-weight: 600;
  margin-right: 4px;
}

.hint-text {
  font-style: italic;
}

/* 单词元素样式 - 默认不换行，只在内容超出容器宽度时通过媒体查询允许换行 */
.hint-word-elements {
  display: block;
  /* 改为block布局 */
  text-align: center;
  /* 使用text-align居中 */
  margin-bottom: 2px;
  width: 100%;
  /* 确保容器占满父元素宽度 */
  max-width: 100%;
  /* 设置最大宽度为100%，防止超出容器 */
}

.hint-word-unit {
  display: inline-block;
  flex-direction: column;
  align-items: center;
  padding: 4px 2px;
  min-width: 50px;
  height: auto;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  vertical-align: top;
  margin: 0 2px;
  margin-bottom: 4px;
  border-radius: 8px;
  cursor: pointer;
}

.hint-word-unit:hover {
  transform: translateY(-3px);
  background-color: rgba(var(--primary-color-rgb, 77, 171, 247), 0.04);
  box-shadow: 0 8px 20px rgba(var(--primary-color-rgb, 77, 171, 247), 0.12);
}

.hint-word-unit:active {
  transform: scale(0.96);
  background-color: rgba(var(--primary-color-rgb, 77, 171, 247), 0.12);
  box-shadow: 0 0 0 1px rgba(var(--primary-color-rgb, 77, 171, 247), 0.3) inset;
}

/* 禁用标点的点击反馈 */
.hint-punctuation-element:active {
  transform: none;
  background-color: transparent;
  box-shadow: none;
}

/* 单词单位内的音标样式 */
.hint-word-unit .hint-phonetic {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 2px;
  font-family: 'Lucida Sans Unicode', 'Arial Unicode MS', Arial, sans-serif;
  text-align: center;
  width: 100%;
}

/* 单词单位内的内容样式 */
.hint-word-unit .hint-content {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  text-align: center;
  width: 100%;
  /* 强制内容换行 */
  word-wrap: break-word !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  max-width: 100% !important;
}

/* 单词单位内的分隔线样式 */
.hint-word-unit .hint-divider {
  width: 70%;
  height: 1px;
  background: linear-gradient(90deg,
      rgba(77, 171, 247, 0) 0%,
      rgba(77, 171, 247, 0.6) 50%,
      rgba(77, 171, 247, 0) 100%);
  margin: 2px auto;
  clear: both;
  position: relative;
  z-index: 1;
}

/* 单词单位内的翻译样式 */
.hint-word-unit .hint-translation {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
  text-align: center;
  width: 100%;
  font-style: italic;
  /* 强制翻译内容换行 */
  word-wrap: break-word !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  max-width: 100% !important;
}

/* 整体翻译块 */
.hint-overall-translation {
  margin-top: 10px;
  font-size: 20px;
  color: var(--text-primary);
  text-align: center;
}

.hint-punctuation-element {
  background-color: transparent;
  padding: 0;
  min-width: auto;
  border: none;
  margin-top: 2rem;
  /* 向下偏移2rem */
}

.hint-punctuation-element:hover {
  background-color: transparent;
  transform: none;
  box-shadow: none;
}

/* 响应式设计 - 只保留内容样式，定位由父容器控制 */
@media (max-width: 768px) {
  .hint-card {
    padding: 0;
  }

  .hint-content {
    font-size: 1.5rem;
  }

  .hint-word-elements {
    display: block;
    /* 改为block布局 */
    text-align: center;
    /* 使用text-align居中 */
    width: 100%;
    /* 确保容器占满父元素宽度 */
  }

  .hint-word-unit {
    padding: 3px 2px;
    min-width: 45px;
    margin: 0 1.5px;
    /* 添加水平间距 */
    margin-bottom: 3px;
    /* 添加垂直间距 */
  }

  .hint-word-unit .hint-phonetic {
    font-size: 14px;
  }

  .hint-word-unit .hint-content {
    font-size: 1.5rem;
  }

  .hint-word-unit .hint-translation {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .hint-card {
    padding: 0;
  }

  .hint-content {
    font-size: 1.5rem;
  }

  .hint-word-elements {
    display: block;
    /* 改为block布局 */
    text-align: center;
    /* 使用text-align居中 */
    width: 100%;
    /* 确保容器占满父元素宽度 */
  }

  .hint-word-unit {
    padding: 2px 1px;
    min-width: 40px;
    margin: 0 1px;
    /* 添加水平间距 */
    margin-bottom: 2px;
    /* 添加垂直间距 */
  }

  .hint-word-unit .hint-phonetic {
    font-size: 14px;
  }

  .hint-word-unit .hint-content {
    font-size: 1.5rem;
  }

  .hint-word-unit .hint-translation {
    font-size: 14px;
  }
}
.lesson-completion-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.celebration-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2001;
}

.lesson-completion-card {
  position: relative;
  width: 90%;
  max-width: 480px;
  background: linear-gradient(145deg, #1a1a1a, #252525);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  z-index: 2002;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

@media (max-width: 480px) {
  .lesson-completion-card {
    padding: 2rem 1.25rem;
    width: 94%;
  }

  .completion-header {
    margin-bottom: 1.5rem;
  }

  .stat-ring {
    width: 120px;
    height: 120px;
  }

  .stat-ring-value {
    font-size: 2rem;
  }
}

/* Share Card Styles (Hidden but rendered for html2canvas) */
.share-card-container {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 375px;
  /* 严格 2:3 比例 */
  height: 563px;
  min-height: 563px;
  max-height: 563px;
  /* 恢复饱满的紫色渐变背景 */
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 24px;
  border-radius: 20px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  box-shadow: none;
  visibility: hidden;
  /* 默认隐藏，仅在生成图片时被 html2canvas 捕获 */
  opacity: 0;
  pointer-events: none;
  z-index: -1000;
}

/* 顶部 Header */
.share-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  /* 减小间距 */
  opacity: 0.95;
}

.share-card-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  letter-spacing: 0.5px;
}

.logo-icon {
  font-size: 18px;
}

.share-date {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-family: 'Oswald', 'Impact', 'Arial Black', sans-serif;
  /* 强烈的无衬线字体 */
  background: transparent;
  padding: 0;
  border: none;
}

.share-date-day {
  font-size: 28px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -1px;
}

.share-date-right {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.share-date-month {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.1;
  opacity: 0.9;
}

.share-date-year {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 1px;
  opacity: 0.6;
  line-height: 1.1;
}

/* 核心内容区 */
.share-card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  padding-top: 0;
}

/* 奖牌与标题 */
.share-medal {
  margin-bottom: 16px;
  /* 减小间距 */
  display: flex;
  flex-direction: column;
  align-items: center;
}

.share-medal-icon {
  font-size: 52px;
  /* 稍微缩小 */
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.3));
}

.share-medal-text {
  font-size: 11px;
  font-weight: 800;
  color: #ffd700;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-top: 6px;
}

.share-course-title {
  font-size: 18px;
  /* 稍微缩小 */
  font-weight: 800;
  color: #fff;
  margin: 0 0 4px 0;
  line-height: 1.3;
}

.share-lesson-title {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  /* 提高透明度适配深色背景 */
  margin: 0 0 24px 0;
  /* 减小间距 */
  font-weight: 500;
}

/* 本次数据卡片 - 悬浮胶囊设计 */
.share-stats-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 24px;
}

.share-stat-box {
  background: rgba(255, 255, 255, 0.15);
  /* 增加透明度 */
  padding: 10px 0;
  border-radius: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.share-stat-box.primary {
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.4);
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.share-stat-value {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 2px;
}

.share-stat-box.primary .share-stat-value {
  font-size: 22px;
  color: #fff;
  /* 恢复白色，在紫色背景上更清晰 */
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.share-stat-label {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  text-transform: uppercase;
}

/* 累计数据 - 极简线条分割设计 */
.share-lifetime-stats {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
  margin-bottom: 24px;
  /* 减小间距 */
  padding: 0 8px;
}

.share-lifetime-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.share-lifetime-label {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.7);
  /* 提高对比度 */
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.share-lifetime-value {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  font-family: 'SF Mono', 'Menlo', monospace;
}

.share-lifetime-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.2);
}

/* 激励语句 - 杂志排版风格 */
.share-quote {
  width: 100%;
  text-align: left;
  position: relative;
  padding-left: 14px;
  margin-bottom: 12px;
  /* 给下方留出明确空间 */
  flex-grow: 1;
  /* 让它占据剩余空间，但不要挤压底部 */
}

.share-quote::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: #fff;
  /* 改为白色 */
  border-radius: 2px;
}

.share-quote-en {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
  font-style: italic;
  line-height: 1.5;
  margin-bottom: 4px;
  opacity: 0.95;
}

.share-quote-cn {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
}

/* Footer - 极简设计 */
.share-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 20px;
  /* 增加顶部内边距，拉开与分割线的距离 */
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: auto;
  /* 确保沉底 */
  min-height: 80px;
  /* 强制保留最小高度 */
  padding-bottom: 4px;
  /* 保持适度底部空间 */
  position: relative;
  /* 增加定位上下文 */
}

.share-footer-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 4px;
}

.share-footer-title {
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
}

.share-footer-subtitle {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.8);
}

.share-qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
  top: 16px;
  /* 加大下移幅度 (6px -> 16px) */
}

.share-qr-img {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.qr-code-mock {
  width: 56px;
  height: 56px;
  background: #fff;
  border-radius: 8px;
}

.share-qr-text {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.lesson-completion-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, #ff4d4d, #f9cb28, #4cd964, #007aff);
}

/* Animations */
@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.animate-in {
  animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Header */
.completion-header {
  margin-bottom: 2rem;
}

.completion-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: bounceIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.2s backwards;
}

@keyframes bounceIn {
  0% {
    transform: scale(0);
    opacity: 0;
  }

  60% {
    transform: scale(1.2);
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.completion-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  background: linear-gradient(120deg, #fff, #a5a5a5);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.completion-subtitle {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* Stats Container */
.completion-stats-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

/* Main Stat - Circular Chart */
.main-stat {
  display: flex;
  justify-content: center;
}

.stat-ring {
  position: relative;
  width: 140px;
  height: 140px;
}

.circular-chart {
  display: block;
  width: 100%;
  height: 100%;
}

.circle-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 2.5;
}

.circle {
  fill: none;
  stroke: #4cd964;
  stroke-width: 2.5;
  stroke-linecap: round;
  animation: progress 1.5s ease-out forwards;
  transform: rotate(-90deg);
  /* Start from top */
  transform-origin: 50% 50%;
  /* Ensure rotation is centered */
}

@keyframes progress {
  0% {
    stroke-dasharray: 0, 100;
  }
}

.stat-ring-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-ring-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  white-space: nowrap;
}

.stat-ring-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.25rem;
  white-space: nowrap;
}

/* Sub Stats Grid */
.sub-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.sub-stat-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.2s ease;
}

.sub-stat-item:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.08);
}

.sub-stat-value {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  white-space: nowrap;
}

.sub-stat-value.error {
  color: #ff4d4d;
}

.sub-stat-value.time {
  color: #f9cb28;
}

.sub-stat-value.total {
  color: #4cd964;
}

.sub-stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}

/* Encouragement */
.encouragement-section {
  margin-bottom: 2rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(90deg, rgba(76, 217, 100, 0.1), rgba(0, 122, 255, 0.1));
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.encouragement-text {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
  font-style: italic;
  margin: 0;
}

/* Actions */
.completion-actions {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.action-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.action-btn {
  flex: 1;
  padding: 0.875rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  outline: none;
  white-space: nowrap;
}

.action-btn.primary {
  background: #007aff;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.action-btn.primary:hover:not(:disabled) {
  background: #0066d6;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 122, 255, 0.4);
}

.action-btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.action-btn.secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.secondary-actions {
  align-items: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9rem;
}

.text-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  transition: color 0.2s;
  white-space: nowrap;
}

.text-btn:hover:not(:disabled) {
  color: #fff;
  text-decoration: underline;
}

.divider {
  margin: 0 0.5rem;
  opacity: 0.3;
}

/* Responsive */
@media (max-width: 480px) {
  .lesson-completion-card {
    padding: 2rem 1.5rem;
    width: 95%;
  }

  .stat-ring {
    width: 120px;
    height: 120px;
  }

  .stat-ring-value {
    font-size: 2rem;
  }
}/* Practice Intro Card Styles - Modern Redesign */

.practice-intro-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.65);
  /* 深色半透明背景 */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  /* 确保在 header 之上 (header z-index: 1000) */
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 20px;
}

.practice-intro-card {
  width: 100%;
  max-width: 900px;
  background: var(--bg-card, #ffffff);
  border-radius: 32px;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  isolation: isolate;
}

.resume-progress-widget {
  position: absolute;
  right: 24px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(229,231,235,1);
  border-radius: 12px;
  padding: 8px 12px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}

[data-theme='dark'] .resume-progress-widget {
  background: rgba(30,41,59,0.7);
  border-color: rgba(255,255,255,0.12);
}

.resume-info {
  color: var(--text-secondary, #64748b);
  font-size: 14px;
}

.resume-tag,
.restart-tag {
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 12px;
}

.resume-tag {
  color: #065f46;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.restart-tag {
  color: #1e3a8a;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.resume-btn.primary.active {
  background: #1d4ed8;
  color: #ffffff;
  border: 1px solid #93c5fd;
}

.resume-btn.secondary.active {
  background: #e5e7eb;
  color: #111827;
  border: 1px solid #9ca3af;
}

.resume-actions {
  display: flex;
  gap: 8px;
}

.resume-btn {
  border: none;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
}

.resume-btn.secondary {
  background: #f3f4f6;
  color: #374151;
}

.resume-btn.primary {
  background: #3b82f6;
  color: #ffffff;
}

.resume-btn.active {
  box-shadow: 0 0 0 2px rgba(59,130,246,0.3);
}

[data-theme='dark'] .practice-intro-card {
  background: var(--bg-card, #1e293b);
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

/* 装饰性背景光晕 */
.card-decoration-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  z-index: -1;
}

.blob-1 {
  width: 300px;
  height: 300px;
  background: var(--primary-color, #3b82f6);
  top: -100px;
  left: -100px;
  opacity: 0.2;
}

.blob-2 {
  width: 250px;
  height: 250px;
  background: var(--accent-color, #8b5cf6);
  bottom: -50px;
  right: -50px;
  opacity: 0.2;
}

.practice-intro-content {
  position: relative;
  padding: 48px;
  z-index: 1;
}

.practice-intro-header {
  text-align: center;
  margin-bottom: 48px;
}

.practice-intro-title {
  font-size: 2.5rem;
  /* 更大的标题 */
  font-weight: 800;
  color: var(--text-primary, #0f172a);
  margin: 0 0 16px 0;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary, #0f172a) 0%, var(--text-secondary, #475569) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme='dark'] .practice-intro-title {
  background: linear-gradient(135deg, #f8fafc 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.practice-intro-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary, #64748b);
  margin: 0;
  font-weight: 500;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.practice-modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .practice-modes-grid {
    grid-template-columns: 1fr;
  }
}

.practice-mode-card {
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid transparent;
  border-radius: 24px;
  padding: 32px 24px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

[data-theme='dark'] .practice-mode-card {
  background: rgba(30, 41, 59, 0.5);
  border-color: rgba(255, 255, 255, 0.05);
}

.practice-mode-card:hover {
  transform: translateY(-6px) scale(1.02);
  background: var(--bg-card, #ffffff);
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  border-color: var(--primary-color, #3b82f6);
}

[data-theme='dark'] .practice-mode-card:hover {
  background: rgba(30, 41, 59, 0.8);
}

/* 鼓励卡片特殊样式 */
.practice-mode-card.encouragement {
  grid-column: 1 / -1;
  /* 跨越所有列 */
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.05) 100%);
  border: 1px dashed rgba(16, 185, 129, 0.3);
  flex-direction: row;
  align-items: center;
  text-align: left;
  gap: 24px;
  padding: 24px 32px;
  cursor: default;
}

.practice-mode-card.encouragement:hover {
  transform: none;
  box-shadow: none;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.08) 100%);
}

.mode-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--bg-card, #ffffff);
  color: var(--primary-color, #3b82f6);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  transition: all 0.4s ease;
  font-size: 32px;
}

[data-theme='dark'] .mode-icon-wrapper {
  background: rgba(30, 41, 59, 1);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

.practice-mode-card:hover .mode-icon-wrapper {
  transform: scale(1.1) rotate(-5deg);
  background: var(--primary-color, #3b82f6);
  color: white;
  box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.3);
}

.practice-mode-card.encouragement .mode-icon-wrapper {
  margin-bottom: 0;
  width: 56px;
  height: 56px;
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
  box-shadow: none;
}

.mode-info {
  flex: 1;
  width: 100%;
}

.mode-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  margin: 0 0 8px 0;
  transition: color 0.3s ease;
}

.practice-mode-card:hover .mode-name {
  color: var(--primary-color, #3b82f6);
}

[data-theme='dark'] .practice-mode-card:hover .mode-name {
  color: var(--primary-color, #60a5fa);
}

.practice-mode-card.encouragement .mode-name {
  color: #059669;
}

[data-theme='dark'] .practice-mode-card.encouragement .mode-name {
  color: #34d399;
}

.mode-description {
  font-size: 0.95rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.6;
  margin: 0;
}

/* 加载状态 */
.loading-text {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color, #3b82f6);
  font-weight: 600;
}

.loading-dots::after {
  content: '...';
  animation: dots 1.5s steps(5, end) infinite;
  display: inline-block;
  width: 1.5em;
  text-align: left;
}

@keyframes dots {

  0%,
  20% {
    content: '.';
  }

  40% {
    content: '..';
  }

  60%,
  100% {
    content: '...';
  }
}

/* 禁用状态 */
.practice-mode-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.8);
}

/* 动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 响应式 */
@media (max-width: 768px) {
  .practice-intro-content {
    padding: 32px 24px;
  }

  .practice-intro-title {
    font-size: 2rem;
  }

  .practice-mode-card.encouragement {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .practice-mode-card.encouragement .mode-icon-wrapper {
    margin-bottom: 16px;
  }
}
/* 快捷键提示区样式 - 简洁单行显示 */

.shortcut-hint {
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 0; /* 删除下margin */
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
  line-height: 1.2;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow-x: auto;
  overflow-y: hidden; /* 防止出现垂直滚动条 */
  /* 自定义滚动条样式 */
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* Webkit浏览器滚动条样式 */
.shortcut-hint::-webkit-scrollbar {
  height: 4px;
}

.shortcut-hint::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 2px;
}

.shortcut-hint::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 2px;
}

.shortcut-hint::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-secondary);
}

.shortcut-hint__item {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}

.shortcut-hint__item:hover {
  background-color: var(--bg-tertiary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.shortcut-hint__item:hover .shortcut-hint__key {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}

.shortcut-hint__item:hover .shortcut-hint__description {
  color: var(--text-primary);
  font-weight: 500;
}

.shortcut-hint__key {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 8px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  min-width: auto;
}

.shortcut-hint__description {
  color: var(--text-secondary);
  font-size: 12px;
  margin-left: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .shortcut-hint {
    gap: 12px;
    padding: 6px 10px;
    font-size: 12px;
  }
  
  .shortcut-hint__key {
    font-size: 10px;
    padding: 3px 6px;
  }
  
  .shortcut-hint__description {
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .shortcut-hint {
    gap: 8px;
    padding: 4px 8px;
    font-size: 11px;
  }
  
  .shortcut-hint__key {
    font-size: 9px;
    padding: 2px 4px;
  }
  
  .shortcut-hint__description {
    font-size: 10px;
  }
}/* 全屏切换按钮样式 */
.fullscreen-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 16px;
  width: 36px;
  height: 36px;
  box-sizing: border-box;
}

.fullscreen-toggle:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.fullscreen-toggle:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.fullscreen-toggle:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* 暗色主题下的样式 */
.dark .fullscreen-toggle {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.dark .fullscreen-toggle:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
}

/* 亮色主题下的样式 */
.light .fullscreen-toggle {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.light .fullscreen-toggle:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
}

/* 练习页面头部中的全屏按钮 */
.practice-header .fullscreen-toggle {
  margin-right: 0;
  margin-left: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .fullscreen-toggle {
    width: 32px;
    height: 32px;
    padding: 6px;
  }
  
  .fullscreen-toggle svg {
    width: 16px;
    height: 16px;
  }
}/* 练习页面专用布局样式 */
.practice-layout {
  width: 100%;
  height: 100%;
  min-height: 100vh;
  /* 确保占满全屏 */
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* 练习页面头部样式 */
.practice-header {
  background-color: var(--header-bg-color);
  color: var(--header-text-color);
  padding: 0 1.5rem;
  box-shadow: var(--shadow-small);
  flex-shrink: 0;
  /* 防止头部被压缩 */
  height: 64px;
  /* 稍微增加高度 */
  display: flex;
  align-items: center;
  z-index: 100;
}

.practice-header-content {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 返回链接样式 */
.back-link {
  display: flex;
  align-items: center;
  color: var(--header-text-color);
  text-decoration: none;
  font-size: 0.95rem;
  transition: opacity 0.3s ease;
  opacity: 0.7;
}

.back-link:hover {
  opacity: 1;
}

.back-icon {
  margin-right: 0.4rem;
  font-size: 1.1rem;
}

.back-text {
  font-weight: 500;
}

/* 练习页面标题 */
.practice-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--header-text-color);
  display: flex;
  justify-content: center;
  /* 子元素水平居中对齐 */
  align-items: center;
  /* 子元素垂直居中对齐 */
  flex: 1;
  /* 占据剩余空间，确保居中对齐 */
  position: absolute;
  /* 绝对定位以确保完美居中 */
  left: 0;
  right: 0;
  pointer-events: none;
  z-index: 0;
  /* 让点击穿透，以免遮挡两侧按钮 */
}

/* 标题和进度条的包装器 */
.title-progress-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

/* 标题容器 */
.title-container {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  padding: 4px 12px;
  border-radius: 6px;
  /* background-color: rgba(0, 0, 0, 0.03); 移除背景，更加简洁 */
  transition: all 0.3s ease;
  cursor: default;
  line-height: 1.2;
}

/* 练习页面课程名 - 主标题 */
.practice-title .practice-course-name {
  font-size: 1rem !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  opacity: 0.9;
}

/* 课时名 - 副标题 */
.practice-title .lesson-name {
  font-size: 0.9rem !important;
  font-weight: 400 !important;
  color: var(--text-secondary) !important;
}

.title-separator {
  color: var(--text-disabled);
  margin: 0 2px;
  font-size: 0.8rem;
}

/* 头部进度条样式 - 优化版，增加动画和色彩变化 */
.header-progress-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 240px;
  /* 固定宽度 */
}

.header-progress-bar {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  /* 浅灰色背景 */
  border-radius: 3px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-progress-fill {
  height: 100%;
  background: linear-gradient(90deg,
      var(--primary-color) 0%,
      var(--accent-primary) 25%,
      #4CAF50 50%,
      var(--accent-primary) 75%,
      var(--primary-color) 100%);
  background-size: 200% 100%;
  border-radius: 3px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.5);
  /* 发光效果 */
  position: relative;
  overflow: hidden;
}

/* 进度条填充动画 - 渐变色彩流动效果 */
.header-progress-fill::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.4) 50%,
      transparent 100%);
  animation: progressFlow 2s linear infinite;
}

/* 进度条完成状态 - 绿色主题 */
.header-progress-fill[style*="100%"] {
  background: linear-gradient(90deg,
      #4CAF50 0%,
      #8BC34A 25%,
      #CDDC39 50%,
      #8BC34A 75%,
      #4CAF50 100%);
  background-size: 200% 100%;
  box-shadow: 0 0 15px rgba(76, 175, 80, 0.6);
  animation: progressComplete 0.5s ease-out;
}

/* 进度条高进度状态 - 橙色主题 (80-99%) */
.header-progress-fill[style*="width: 8"],
.header-progress-fill[style*="width: 9"] {
  background: linear-gradient(90deg,
      #FF9800 0%,
      #FFC107 25%,
      #FFEB3B 50%,
      #FFC107 75%,
      #FF9800 100%);
  background-size: 200% 100%;
  box-shadow: 0 0 15px rgba(255, 152, 0, 0.6);
}

/* 进度条脉冲动画 - 表示活跃状态 */
@keyframes progressFlow {
  0% {
    left: -100%;
  }

  100% {
    left: 100%;
  }
}

@keyframes progressComplete {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }

  100% {
    transform: scale(1);
  }
}

/* 进度条脉冲动画 - 低进度时轻微脉动 */
@keyframes progressPulse {

  0%,
  100% {
    opacity: 1;
    transform: scaleY(1);
  }

  50% {
    opacity: 0.8;
    transform: scaleY(1.1);
  }
}

/* 彩虹渐变动画 - 中等进度时的色彩变化 */
@keyframes rainbowShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

/* 进度条背景装饰 - 细微的网格纹理 */
.header-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    repeating-linear-gradient(90deg,
      transparent 0px,
      transparent 8px,
      rgba(255, 255, 255, 0.1) 8px,
      rgba(255, 255, 255, 0.1) 9px);
  pointer-events: none;
}

/* 进度条主题样式 */
.progress-theme-low .header-progress-fill {
  background: linear-gradient(90deg,
      #2196F3 0%,
      #03A9F4 25%,
      #00BCD4 50%,
      #03A9F4 75%,
      #2196F3 100%);
  background-size: 200% 100%;
  animation: progressPulse 2s ease-in-out infinite, rainbowShift 3s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(33, 150, 243, 0.6);
}

.progress-theme-medium .header-progress-fill {
  background: linear-gradient(90deg,
      #9C27B0 0%,
      #673AB7 25%,
      #00BCD4 50%,
      #673AB7 75%,
      #9C27B0 100%);
  background-size: 200% 100%;
  animation: rainbowShift 3s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(156, 39, 176, 0.6);
}

.progress-theme-high .header-progress-fill {
  background: linear-gradient(90deg,
      #FF5722 0%,
      #FF9800 25%,
      #FFC107 50%,
      #FF9800 75%,
      #FF5722 100%);
  background-size: 200% 100%;
  animation: rainbowShift 2s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(255, 87, 34, 0.6);
}

.header-progress-text {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  min-width: 40px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  opacity: 0;
  /* 默认隐藏，鼠标悬停时显示 */
  transform: translateX(-10px);
  transition: all 0.3s ease;
  position: absolute;
  right: -50px;
}

.header-progress-container:hover .header-progress-text {
  opacity: 1;
  transform: translateX(0);
}

/* 头部操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  z-index: 101;
  /* 确保在标题上方 */
}

/* 练习页头部通用图标按钮样式（与右侧按钮风格统一） */
.header-action-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  box-sizing: border-box;
}

.header-action-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-action-btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.header-action-btn:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* 练习页面内容区 - 完美居中 */
.practice-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  /* 水平居中 */
  justify-content: center;
  /* 垂直居中 */
  position: relative;
  overflow: hidden;
  /* 防止滚动条闪烁，具体滚动由内部容器控制 */

}

/* 任务列表弹窗样式 - 美化版 */
.task-list-modal-content {
  max-height: 65vh;
  overflow-y: auto;
  padding: 4px 8px;
}

/* 自定义滚动条 */
.task-list-modal-content::-webkit-scrollbar {
  width: 6px;
}

.task-list-modal-content::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

/* 练习任务清单布局：单词/短语双列，句子单列但列宽一致 */
.practice-task-list-container {
  --task-col-width: 420px;
  --task-col-gap: 12px;
  display: grid;
  grid-auto-rows: minmax(60px, auto);
  gap: var(--task-col-gap);
  justify-content: center;
}

.practice-task-list-container.two-column {
  grid-template-columns: repeat(2, var(--task-col-width));
}

.practice-task-list-container.single-column {
  grid-template-columns: calc(var(--task-col-width) * 2 + var(--task-col-gap));
}

.practice-task-item {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  background: var(--bg-secondary);
  display: grid;
  grid-template-columns: 48px 1fr 120px;
  align-items: center;
}

/* 待处理任务不展示状态列，释放右侧空间 */
.practice-task-item.pending {
  grid-template-columns: 48px 1fr;
}

.practice-task-item .task-item-index {
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.practice-task-item .task-item-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.practice-task-item .task-item-text {
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

.practice-task-item .task-item-translation {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.practice-task-item .task-item-status {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

@media (max-width: 900px) {

  .practice-task-list-container.two-column,
  .practice-task-list-container.single-column {
    grid-template-columns: 1fr;
  }
}

.task-list-modal-content::-webkit-scrollbar-track {
  background: transparent;
}

.task-list-item {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s ease;
  border-radius: 8px;
  margin-bottom: 6px;
  background-color: var(--bg-primary);
  border: 1px solid transparent;
}

.task-list-item:last-child {
  margin-bottom: 0;
}

.task-list-item:hover {
  background-color: var(--bg-secondary);
  transform: translateX(2px);
}

.task-list-item.current {
  background-color: rgba(var(--accent-primary-rgb), 0.08);
  border: 1px solid rgba(var(--accent-primary-rgb), 0.3);
  box-shadow: 0 2px 8px rgba(var(--accent-primary-rgb), 0.1);
}

.task-info {
  flex: 1;
  margin-right: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-text {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-family-mono, monospace);
  /* 英文使用等宽字体更有质感 */
  line-height: 1.4;
}

.task-translation {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.4;
}

.task-status {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.task-check-icon {
  color: var(--success-color);
  font-size: 1.2rem;
  font-weight: bold;
}

.current .task-text {
  color: var(--accent-primary);
}

/* ==========================================
   响应式布局优化 (Pad & Mobile)
   解决右上角按钮与中间标题/进度条重叠问题
   ========================================== */

@media (max-width: 1024px) {
  /* 平板模式：限制标题区域宽度，防止与两侧按钮重叠 */
  .practice-title {
    left: 60px;   /* 为左侧返回按钮留出空间 */
    right: 200px; /* 为右侧多个功能按钮留出足够空间 (4个按钮 * ~40px + 间距) */
    width: auto;  /* 自动宽度，不再占满 */
    justify-content: center;
  }
  
  .title-progress-wrapper {
    width: 100%;
    max-width: 100%;
  }

  .title-container {
    max-width: 100%;
    justify-content: center;
  }

  /* 文本截断处理 */
  .practice-title .practice-course-name,
  .practice-title .lesson-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 20vw; /* 限制文本最大宽度 */
    flex-shrink: 1;
  }
}

@media (max-width: 768px) {
  /* 手机模式：更紧凑的布局 */
  .practice-title {
    left: 48px;
    right: 160px; /* 移动端按钮可能更紧凑 */
    justify-content: flex-start; /* 靠左一些，或者保持居中 */
  }
  
  /* 隐藏课程名，只显示课时名，节省空间 */
  .practice-title .practice-course-name {
    display: none;
  }
  
  .title-separator {
    display: none;
  }
  
  .practice-title .lesson-name {
    max-width: 100%;
    font-size: 0.85rem !important;
  }
  
  /* 缩小进度条 */
  .header-progress-container {
    width: 120px;
  }
  
  /* 缩小头部按钮间距和尺寸 */
  .header-actions {
    gap: 0.4rem;
  }
  
  .header-action-btn {
    width: 32px;
    height: 32px;
    padding: 6px;
  }
  
  .practice-header {
    padding: 0 0.8rem; /* 减少头部左右内边距 */
  }
}
/* Settings Modal & Global Styles */
.settings-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 20000000;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease-out;
}

.settings-modal-content {
  background: var(--bg-card, #ffffff);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
}

[data-theme='dark'] .settings-modal-content {
  background: var(--bg-secondary, #1e293b);
  border-color: rgba(255, 255, 255, 0.1);
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  background: var(--bg-card, #ffffff);
}

[data-theme='dark'] .settings-header {
  background: var(--bg-secondary, #1e293b);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.settings-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  display: flex;
  align-items: center;
  gap: 10px;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.close-btn:hover {
  background: var(--bg-tertiary, #f1f5f9);
  color: var(--text-primary, #0f172a);
}

.settings-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* Tabs Navigation */
.settings-tabs-nav {
  display: flex;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  background: var(--bg-card, #ffffff);
  position: sticky;
  top: 0;
  z-index: 10;
}

[data-theme='dark'] .settings-tabs-nav {
  background: var(--bg-secondary, #1e293b);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.settings-tab-btn {
  padding: 16px 4px;
  margin-right: 24px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.settings-tab-btn:hover {
  color: var(--text-primary, #0f172a);
}

.settings-tab-btn.active {
  color: var(--primary-color, #3b82f6);
}

.settings-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color, #3b82f6);
  border-radius: 2px 2px 0 0;
}

.tab-content {
  padding: 24px;
  flex: 1;
}

/* Settings Group */
.setting-group {
  margin-bottom: 32px;
}

.setting-group:last-child {
  margin-bottom: 0;
}

.setting-group-title {
  margin: 0 0 16px 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary, #64748b);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.setting-item {
  margin-bottom: 24px;
}

.setting-item:last-child {
  margin-bottom: 0;
}

/* Slider Control */
.slider-control {
  width: 100%;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.slider-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary, #0f172a);
}

.slider-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-color, #3b82f6);
  background: rgba(59, 130, 246, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.slider-track-container {
  position: relative;
  height: 24px;
  display: flex;
  align-items: center;
}

.slider-input {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary, #e2e8f0);
  border-radius: 3px;
  outline: none;
  background-image: linear-gradient(to right, var(--primary-color, #3b82f6), var(--primary-color, #3b82f6));
  background-repeat: no-repeat;
  cursor: pointer;
}

[data-theme='dark'] .slider-input {
  background: rgba(255, 255, 255, 0.1);
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
  cursor: pointer;
  transition: transform 0.1s;
  margin-top: 0;
  /* Align thumb vertically */
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.slider-input:active::-webkit-slider-thumb {
  transform: scale(0.95);
  background: var(--primary-color, #3b82f6);
}

/* Toggle Switch */
.toggle-switch {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  cursor: pointer;
  padding: 8px 0;
  gap: 12px;
  flex-wrap: nowrap;
  min-height: 26px;
}

.toggle-track {
  width: 48px;
  height: 26px;
  background: var(--bg-tertiary, #e2e8f0);
  border-radius: 13px;
  position: relative;
  transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

[data-theme='dark'] .toggle-track {
  background: rgba(255, 255, 255, 0.15);
}

.toggle-switch.checked .toggle-track {
  background: var(--primary-color, #3b82f6);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-switch.checked .toggle-thumb {
  transform: translateX(22px);
}

.toggle-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary, #0f172a);
  white-space: nowrap;
  writing-mode: horizontal-tb;
  display: inline-block;
  line-height: 1.4;
}

/* Font Options Grid */
.font-select-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.font-option {
  position: relative;
  background: var(--bg-tertiary, #f8fafc);
  border: 2px solid transparent;
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

[data-theme='dark'] .font-option {
  background: rgba(255, 255, 255, 0.05);
}

.font-option:hover {
  background: var(--bg-hover, #f1f5f9);
  transform: translateY(-2px);
}

[data-theme='dark'] .font-option:hover {
  background: rgba(255, 255, 255, 0.1);
}

.font-option.active {
  background: rgba(59, 130, 246, 0.05);
  border-color: var(--primary-color, #3b82f6);
}

[data-theme='dark'] .font-option.active {
  background: rgba(59, 130, 246, 0.15);
}

.font-preview {
  font-size: 2rem;
  line-height: 1;
  color: var(--text-primary, #0f172a);
}

.font-info {
  display: flex;
  flex-direction: column;
}

.font-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary, #64748b);
}

.check-circle {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 20px;
  height: 20px;
  background: var(--primary-color, #3b82f6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  animation: scaleIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Selection Cards (Voice) */
.selection-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.selection-card {
  background: var(--bg-tertiary, #f8fafc);
  border: 2px solid transparent;
  border-radius: 16px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

[data-theme='dark'] .selection-card {
  background: rgba(255, 255, 255, 0.05);
}

.selection-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  background: var(--bg-hover, #f1f5f9);
}

[data-theme='dark'] .selection-card:hover {
  background: rgba(255, 255, 255, 0.1);
}

.selection-card.active {
  background: rgba(59, 130, 246, 0.05);
  border-color: var(--primary-color, #3b82f6);
}

[data-theme='dark'] .selection-card.active {
  background: rgba(59, 130, 246, 0.15);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.card-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
  margin-bottom: 4px;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary, #64748b);
  margin-bottom: 12px;
}

/* Actions Footer */
.settings-actions {
  padding: 20px 24px;
  border-top: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--bg-card, #ffffff);
  border-radius: 0 0 20px 20px;
}

[data-theme='dark'] .settings-actions {
  background: var(--bg-secondary, #1e293b);
}

.btn-reset {
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
  background: transparent;
  color: var(--text-secondary, #64748b);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-reset:hover {
  background: var(--bg-tertiary, #f1f5f9);
  color: var(--text-primary, #0f172a);
  border-color: var(--text-secondary, #64748b);
}

.btn-save {
  padding: 10px 24px;
  border-radius: 10px;
  border: none;
  background: var(--primary-color, #3b82f6);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.btn-save:hover {
  background: var(--primary-color-dark, #2563eb);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3);
}

.btn-save:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Messages */
.message {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.message.success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.message.error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0);
  }

  to {
    transform: scale(1);
  }
}/* 提示通知组件样式 */
.toast-notification-container {
  position: fixed;
  z-index: 10000;
  max-width: 400px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  box-sizing: border-box;
}

/* 位置样式 */
.toast-top-right {
  top: 20px;
  right: 20px;
}

.toast-top-left {
  top: 20px;
  left: 20px;
}

.toast-bottom-right {
  bottom: 20px;
  right: 20px;
}

.toast-bottom-left {
  bottom: 20px;
  left: 20px;
}

.toast-top-center {
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
}

.toast-bottom-center {
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
}

/* 头部样式 */
.toast-notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 8px 8px 0 0;
  margin-bottom: 8px;
}

.toast-notification-header h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.toast-notification-actions {
  display: flex;
  gap: 8px;
}

.toast-notification-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: background-color 0.2s;
}

.toast-notification-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 消息列表样式 */
.toast-notification-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
}

/* 单个消息项样式 */
.toast-notification-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: toastSlideIn 0.3s ease-out;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 消息类型样式 */
.toast-success {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
}

.toast-error {
  background: linear-gradient(135deg, #f44336, #d32f2f);
  color: white;
}

.toast-warning {
  background: linear-gradient(135deg, #ff9800, #f57c00);
  color: white;
}

.toast-info {
  background: linear-gradient(135deg, #2196F3, #1976D2);
  color: white;
}

/* 消息内容样式 */
.toast-notification-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.toast-notification-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.toast-notification-message {
  font-size: 14px;
  line-height: 1.4;
  word-wrap: break-word;
}

/* 关闭按钮样式 */
.toast-notification-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
  flex-shrink: 0;
}

.toast-notification-close:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .toast-notification-container {
    max-width: 90vw;
    left: 5vw;
    right: 5vw;
  }
  
  .toast-top-right,
  .toast-top-left,
  .toast-bottom-right,
  .toast-bottom-left {
    left: 5vw;
    right: 5vw;
    transform: none;
  }
  
  .toast-top-center,
  .toast-bottom-center {
    left: 5vw;
    right: 5vw;
    transform: none;
  }
}

/* 滚动条样式 */
.toast-notification-list::-webkit-scrollbar {
  width: 6px;
}

.toast-notification-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.toast-notification-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.toast-notification-list::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}.register-form {
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 400px;
}

.register-form h2 {
  text-align: center;
  margin-bottom: 30px;
  color: var(--text-primary);
  font-size: 1.8rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 5px;
  font-size: 14px;
  transition: border-color 0.3s, box-shadow 0.3s;
  box-sizing: border-box;
  caret-color: var(--accent-secondary);
}
.form-group input::placeholder {
  color: var(--text-secondary);
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 2px var(--accent-secondary-opacity);
}

.code-input-group {
  display: flex;
  gap: 10px;
}

.code-input-group input {
  flex: 1;
}

.send-code-btn {
  padding: 12px 15px;
  background: var(--accent-secondary);
  color: var(--text-inverse);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
  white-space: nowrap;
  transition: background-color 0.3s, box-shadow 0.3s;
  box-shadow: var(--shadow-sm);
}

.send-code-btn:hover:not(:disabled) {
  background: var(--accent-secondary-light);
  box-shadow: var(--shadow-md);
}

.send-code-btn:disabled {
  background: var(--bg-disabled);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.register-button {
  width: 100%;
  padding: 12px;
  background: var(--accent-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s, box-shadow 0.3s;
  margin-top: 10px;
  box-shadow: var(--shadow-sm);
}

.register-button:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: var(--shadow-md);
}

.register-button:disabled {
  background: var(--bg-disabled);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.error-message {
  background: rgba(255, 0, 110, 0.1);
  color: var(--color-error);
  padding: 10px;
  border-radius: 5px;
  margin: 15px 0;
  text-align: center;
  border: 1px solid var(--color-error);
}

.login-link {
  text-align: center;
  margin-top: 20px;
  color: var(--text-secondary);
}

.login-link a {
  color: var(--accent-secondary);
  text-decoration: none;
}

.login-link a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .register-form {
    padding: 20px;
    margin: 0 10px;
  }
  
  .code-input-group {
    flex-direction: column;
  }
  
  .send-code-btn {
    width: 100%;
  }
}.sentence-editor-page { padding: var(--gutter-lg, 16px); }
.toolbar { display: flex; gap: var(--gutter-sm, 8px); align-items: center; margin-bottom: var(--gutter-sm, 8px); }
.btn { padding: .4rem .8rem; border: 1px solid rgba(var(--accent-primary-rgb, 59,130,246), 0.25); background: var(--bg-primary, #f8f8f8); cursor: pointer; border-radius: 6px; }
.btn.primary { background: rgba(var(--accent-primary-rgb, 59,130,246), 1); color: #fff; border-color: rgba(var(--accent-primary-rgb, 59,130,246), 1); }
.btn.danger { background: #c62828; color: #fff; border-color: #c62828; }
.path { color: var(--text-secondary, #666); font-size: var(--font-size-sm, 0.875rem); }
.placeholder { color: var(--text-tertiary, #888); padding: var(--gutter-sm, 8px) 0; }
.panes { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter-md, 12px); }
.pane { border: 1px solid rgba(0,0,0,0.08); border-radius: 8px; padding: var(--gutter-sm, 8px); background: var(--bg-secondary, #fafafa); }
.nav { display: flex; gap: var(--gutter-sm, 8px); align-items: center; margin-bottom: var(--gutter-sm, 8px); }
.sentence .text { font-size: var(--font-size-lg, 1.125rem); font-weight: 600; margin-bottom: .25rem; color: var(--text-primary, #333); }
.sentence .translation { color: var(--text-secondary, #555); }
.add-box { display: flex; gap: var(--gutter-sm, 8px); align-items: center; margin-top: var(--gutter-md, 12px); }
.add-box input, .add-box select { padding: .35rem .5rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 6px; }
.elements .title { font-weight: 600; margin-bottom: var(--gutter-sm, 8px); }
.element-row { display: grid; grid-template-columns: 120px 100px 1fr 90px 90px; gap: var(--gutter-sm, 8px); align-items: center; padding: .35rem; background: var(--bg-primary, #fff); border: 1px solid rgba(0,0,0,0.08); border-radius: 6px; margin-bottom: var(--gutter-sm, 8px); }
.element-row.selected { border-color: rgba(var(--accent-primary-rgb, 59,130,246), 0.6); box-shadow: 0 0 0 2px rgba(var(--accent-primary-rgb, 59,130,246), 0.15) inset; }
.element-row .idx { margin-left: .25rem; color: var(--text-secondary, #555); }
.element-row .type { font-weight: 600; }
.element-row .content { }
.element-row .pos { color: var(--text-tertiary, #777); }
@media (max-width: 960px) {
  .panes { grid-template-columns: 1fr; }
  .element-row { grid-template-columns: 120px 100px 1fr 90px; }
}
.edit-box { margin-top: var(--gutter-md, 12px); padding: var(--gutter-sm, 8px); border: 1px solid rgba(0,0,0,0.08); border-radius: 8px; background: var(--bg-primary, #fff); }
.edit-box .title { font-weight: 600; margin-bottom: var(--gutter-sm, 8px); }
.edit-box .grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter-sm, 8px); }
.edit-box label { display: flex; flex-direction: column; gap: 4px; color: var(--text-secondary, #555); }
.edit-box input, .edit-box select { padding: .35rem .5rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 6px; }
.edit-box .actions { display: flex; justify-content: flex-end; margin-top: var(--gutter-sm, 8px); }
.import-row { display: flex; gap: var(--gutter-sm, 8px); align-items: center; }
.import-row input, .import-row select { padding: .35rem .5rem; border: 1px solid rgba(0,0,0,0.12); border-radius: 6px; }
.import-state { display: flex; gap: var(--gutter-sm, 8px); align-items: center; }
.import-state .bar { width: 160px; height: 10px; background: #e0e0e0; border-radius: 6px; overflow: hidden; }
.import-state .inner { height: 100%; background: rgba(var(--accent-primary-rgb, 59,130,246), 1); }
.import-state.state-success .inner { background: #2e7d32; }
.import-state.state-error .inner { background: #c62828; }
.course-lesson-sentence-selector {
  margin-bottom: 20px;
}

.selector-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 15px;
}

.selector-group {
  flex: 1;
  min-width: 200px;
}

.selector-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  color: #333;
}

.select-container {
  position: relative;
}

.select-container select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background-color: white;
  font-size: 14px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.select-container select:disabled {
  background-color: #f5f5f5;
  color: #999;
  cursor: not-allowed;
}

.select-container .loading-spinner {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
}

.error-message {
  color: #e74c3c;
  font-size: 12px;
  margin-top: 5px;
}

.selected-sentence-info {
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 4px;
  padding: 15px;
  margin-top: 15px;
}

.selected-sentence-info h4 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #333;
}

.selected-sentence-info p {
  margin-bottom: 5px;
  line-height: 1.5;
}

.selected-sentence-info p:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .selector-row {
    flex-direction: column;
    gap: 15px;
  }
}/* 句子短语编辑页面样式 */

/* 待补充元素闪烁动画 */
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.3);
    transform: scale(1.02);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    transform: scale(1);
  }
}

/* 待补充元素高亮样式 */
.pending-element {
  animation: pulse 2s infinite;
  border: 2px solid var(--error-color) !important;
  background: var(--error-light) !important;
  position: relative;
}

/* 按钮禁用状态样式 */
.btn-save:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--bg-tertiary) !important;
  color: var(--text-secondary) !important;
  border-color: var(--border-color) !important;
}

/* 元素滚动区域样式 */
.sp-elements-scroll {
  max-height: 300px;
  overflow-y: auto;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-secondary);
}

/* 底部容器样式 */
.sp-footer-container {
  position: sticky;
  bottom: 0;
  background: var(--bg-primary);
  padding: 16px;
  border-top: 1px solid var(--border-color);
  margin-top: 20px;
  z-index: 10;
}

.sp-left-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.sp-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sp-title {
  font-size: 14px;
  color: var(--text-secondary);
}

.sp-select {
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-primary);
}

/* 顶部警告提示样式 */
.pending-warning {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  color: var(--error-color);
  background: var(--error-light);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--error-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .sp-footer-container {
    padding: 12px;
  }
  
  .sp-left-footer {
    gap: 12px;
  }
  
  .sp-elements-scroll {
    max-height: 200px;
  }
}/* 分页组件样式 */
.pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  margin-top: 20px;
  border-top: 1px solid var(--border-color, #e2e8f0);
  flex-wrap: wrap;
  gap: 16px;
}

/* 分页信息 */
.pagination-info {
  color: var(--text-secondary);
  font-size: 14px;
  min-width: 200px;
}

/* 分页导航 */
.pagination-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 导航按钮 */
.nav-btn,
.page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-btn:hover:not(:disabled),
.page-btn:hover:not(.active) {
  background: var(--bg-primary);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.nav-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

/* 当前页按钮 */
.page-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--text-inverse);
  font-weight: 600;
}

.page-btn.active:hover {
  background: var(--accent-primary-dark);
  border-color: var(--accent-primary-dark);
}

/* 省略号 */
.ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  color: var(--text-muted);
  font-size: 14px;
}

/* 页面大小选择器 */
.page-size-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 150px;
}

.page-size-selector label {
  color: var(--text-secondary);
  font-size: 14px;
  white-space: nowrap;
}

.page-size-selector select {
  padding: 6px 8px;
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.page-size-selector select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .pagination-container {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  
  .pagination-info {
    text-align: center;
    min-width: auto;
  }
  
  .pagination-nav {
    order: 2;
  }
  
  .page-size-selector {
    order: 1;
    justify-content: center;
    min-width: auto;
  }
}

@media (max-width: 480px) {
  .pagination-nav {
    gap: 4px;
  }
  
  .nav-btn,
  .page-btn {
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    font-size: 12px;
  }
  
  .ellipsis {
    min-width: 32px;
    height: 32px;
    font-size: 12px;
  }
}/* 生词表单样式 - 科技感设计 */

/* 表单遮罩层 */
.vocabulary-form-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease-out;
}

/* 表单容器 */
.vocabulary-form-container {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: 16px;
  border: 1px solid var(--accent-primary);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 0 20px rgba(var(--accent-primary-rgb), 0.3);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.3s ease-out;
}

/* 顶部霓虹光效 */
.vocabulary-form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent, 
    var(--accent-primary), 
    transparent);
  filter: blur(1px);
  opacity: 0.8;
}

/* 表单头部 */
.vocabulary-form-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(90deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: 16px 16px 0 0;
}

.vocabulary-form-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 关闭按钮 */
.close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.close-btn:hover {
  background-color: rgba(var(--error-rgb), 0.2);
  color: var(--error);
}

/* 表单内容 */
.vocabulary-form-container form {
  padding: 1.5rem;
}

/* 表单组 */
.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-row .form-group {
  flex: 1;
}

/* 表单标签 */
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.875rem;
}

/* 输入框和文本域样式 */
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(var(--bg-primary-rgb), 0.5);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(var(--accent-primary-rgb), 0.2);
  background: rgba(var(--bg-primary-rgb), 0.7);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: rgba(var(--accent-primary-rgb), 0.5);
}

/* 错误状态 */
.form-group input.error,
.form-group textarea.error {
  border-color: var(--error);
  box-shadow: 0 0 0 2px rgba(var(--error-rgb), 0.2);
}

.error-text {
  display: block;
  margin-top: 0.25rem;
  color: var(--error);
  font-size: 0.75rem;
}

/* 文本域样式调整 */
.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

/* 表单操作按钮 */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.cancel-btn,
.submit-btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

/* 取消按钮 */
.cancel-btn {
  background: rgba(var(--bg-primary-rgb), 0.5);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.cancel-btn:hover {
  background: rgba(var(--bg-primary-rgb), 0.8);
  color: var(--text-primary);
}

/* 提交按钮 */
.submit-btn {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb), 0.3);
  position: relative;
  overflow: hidden;
}

.submit-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transition: left 0.5s;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--accent-primary-rgb), 0.4);
}

.submit-btn:hover::before {
  left: 100%;
}

.submit-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(var(--accent-primary-rgb), 0.3);
}

/* 动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .vocabulary-form-container {
    width: 95%;
    margin: 1rem;
  }
  
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .cancel-btn,
  .submit-btn {
    width: 100%;
  }
}.vocabulary-list {
  width: 100%;
}

.list-loading,
.list-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px dashed var(--border-primary);
}

.empty-hint {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-top: 8px;
}

.list-container {
  width: 100%;
}

/* Card Grid Layout */
.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  width: 100%;
}

/* Card Styles */
.vocabulary-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  min-height: 160px;
}

.vocabulary-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  border-color: var(--accent-primary);
  z-index: 1;
}

.vocabulary-card.selected {
  border-color: var(--accent-primary);
  background-color: rgba(var(--accent-primary-rgb), 0.02);
  box-shadow: 0 0 0 2px rgba(var(--accent-primary-rgb), 0.1);
}

/* Card Content Structure */
.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.word-core {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.content-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  word-break: break-word;
}

.phonetic {
  font-family: 'Charis SIL', serif;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.translation-area {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: auto;
  /* Push stats to bottom */
}

.course-area {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-primary);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stats-area {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.practice-count {
  background-color: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Checkbox (Hidden by default, shown on hover/selected) */
.card-select {
  position: absolute;
  top: 1rem;
  right: 1rem;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 2;
}

.vocabulary-card:hover .card-select,
.vocabulary-card.selected .card-select {
  opacity: 1;
}

.card-select input {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* Delete Button */
.card-actions {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 2;
}

.vocabulary-card:hover .card-actions {
  opacity: 1;
}

.delete-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s;
}

.delete-btn:hover {
  color: #ef4444;
  border-color: #fca5a5;
  background-color: #fee2e2;
}

/* Batch Toolbar (Floating at bottom) */
.batch-toolbar {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  z-index: 1000;
  min-width: 400px;
}

.batch-toolbar span {
  color: var(--text-primary);
  font-weight: 600;
}

.batch-actions {
  display: flex;
  gap: 0.75rem;
}

.batch-practice-btn {
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: opacity 0.2s;
}

.batch-practice-btn:hover {
  opacity: 0.9;
}

.batch-delete-btn {
  background: #fee2e2;
  color: #ef4444;
  border: 1px solid #fca5a5;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.batch-delete-btn:hover {
  background: #fecaca;
}

.batch-cancel-btn {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.batch-cancel-btn:hover {
  background: var(--border-primary);
}

/* Tooltip for examples */
.example-tooltip {
  display: none;
  /* Hide for now to reduce clutter, or style better */
}/* CheckInModal组件样式 */

.checkin-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

.checkin-modal-content {
  background: white;
  border-radius: 16px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  animation: slideUp 0.3s ease;
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .checkin-modal-content {
    background: #2d3748;
    color: #e2e8f0;
  }
}

/* 模态框头部 */
.checkin-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e2e8f0;
}

.checkin-modal-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #2d3748;
}

.close-button {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #718096;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.close-button:hover {
  background-color: #f7fafc;
  color: #4a5568;
}

/* 打卡确认区域 */
.checkin-confirm-section {
  text-align: center;
  margin-bottom: 32px;
  padding: 24px;
  border-radius: 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.loading-status {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.already-checked .check-icon {
  font-size: 48px;
  margin-bottom: 16px;
  animation: bounce 0.6s ease;
}

.checkin-prompt .calendar-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.no-permission .warning-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.checkin-confirm-section h4 {
  margin: 0 0 8px 0;
  font-size: 18px;
  font-weight: 600;
}

.checkin-confirm-section p {
  margin: 0 0 20px 0;
  opacity: 0.9;
  font-size: 14px;
}

.confirm-checkin-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 12px 32px;
  border-radius: 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.confirm-checkin-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* 统计信息区域 */
.checkin-stats-section {
  margin-bottom: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-item {
  text-align: center;
  padding: 16px;
  background: #f7fafc;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: #4a5568;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: #718096;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .stat-item {
    background: #4a5568;
  }
  
  .stat-value {
    color: #e2e8f0;
  }
  
  .stat-label {
    color: #a0aec0;
  }
}

/* 打卡历史区域 */
.checkin-history-section h4 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: #2d3748;
}

.history-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 8px;
  margin-bottom: 4px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.history-item:last-child {
  margin-bottom: 0;
}

.history-item.checked {
  background: #f0fff4;
  border-left: 4px solid #48bb78;
}

.history-item.missed {
  background: #fff5f5;
  border-left: 4px solid #fc8181;
}

.history-item .date {
  font-size: 14px;
  font-weight: 500;
  color: #4a5568;
}

.history-item .status {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
}

.history-item .status.checked {
  background: #c6f6d5;
  color: #22543d;
}

.history-item .status.missed {
  background: #fed7d7;
  color: #742a2a;
}

.history-item .method {
  font-size: 11px;
  color: #718096;
  background: #edf2f7;
  padding: 2px 6px;
  border-radius: 8px;
}

.no-records {
  text-align: center;
  padding: 32px;
  color: #a0aec0;
  font-style: italic;
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .checkin-history-section h4 {
    color: #e2e8f0;
  }
  
  .history-list {
    border-color: #4a5568;
  }
  
  .history-item.checked {
    background: #22543d;
  }
  
  .history-item.missed {
    background: #742a2a;
  }
  
  .history-item .date {
    color: #e2e8f0;
  }
  
  .history-item .method {
    background: #4a5568;
    color: #a0aec0;
  }
}

/* 操作按钮区域 */
.checkin-modal-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid #e2e8f0;
}

.close-modal-btn {
  background: #718096;
  color: white;
  border: none;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.close-modal-btn:hover {
  background: #4a5568;
  transform: translateY(-1px);
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -8px, 0);
  }
  70% {
    transform: translate3d(0, -4px, 0);
  }
  90% {
    transform: translate3d(0, -2px, 0);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .checkin-modal-content {
    margin: 20px;
    padding: 20px;
    width: calc(100% - 40px);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .history-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .history-item .method {
    align-self: flex-end;
  }
}

@media (max-width: 480px) {
  .checkin-modal-content {
    padding: 16px;
  }
  
  .checkin-confirm-section {
    padding: 20px;
  }
  
  .confirm-checkin-btn {
    width: 100%;
  }
}

/* 打卡规则样式 */
.checkin-rules {
  margin-bottom: 24px;
  padding: 16px;
  background: #f7fafc;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.checkin-rules h5 {
  margin: 0 0 15px 0;
  font-size: 16px;
  color: #2d3748;
  font-weight: 600;
  text-align: center;
}

.rules-content {
  display: flex;
  flex-direction: row;
  gap: 15px;
  justify-content: space-between;
}

.rule-section {
  flex: 1;
  padding: 12px;
  background: white;
  border-radius: 6px;
  border-left: 4px solid #667eea;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  min-height: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.rule-section h6 {
  margin: 0 0 8px 0;
  font-size: 14px;
  color: #2d3748;
  font-weight: 600;
}

.rule-section p {
  margin: 0;
  font-size: 13px;
  color: #4a5568;
  line-height: 1.4;
}

.rule-section ul {
  margin: 0;
  padding-left: 15px;
}

.rule-section li {
  font-size: 13px;
  color: #4a5568;
  line-height: 1.4;
  margin-bottom: 4px;
}

/* 打卡规则响应式设计 */
@media (max-width: 768px) {
  .rules-content {
    flex-direction: column;
    gap: 12px;
  }
  
  .rule-section {
    min-height: auto;
    padding: 10px;
  }
}

/* 暗色主题适配 */
@media (prefers-color-scheme: dark) {
  .checkin-rules {
    background: #4a5568;
    border-color: #718096;
  }
  
  .checkin-rules h5 {
    color: #e2e8f0;
  }
  
  .rule-section {
    background: #2d3748;
    border-left-color: #a3bffa;
  }
  
  .rule-section h6 {
    color: #e2e8f0;
  }
  
  .rule-section p,
  .rule-section li {
    color: #a0aec0;
  }
}.error-notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 350px;
  max-width: 90vw;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  overflow: hidden;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.error-notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: #f5f5f5;
  border-bottom: 1px solid #e0e0e0;
}

.error-notification-header h4 {
  margin: 0;
  font-size: 16px;
  color: #333;
}

.error-notification-actions {
  display: flex;
  gap: 8px;
}

.error-notification-btn {
  background: none;
  border: none;
  color: #666;
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.error-notification-btn:hover {
  background-color: #e0e0e0;
}

.error-notification-list {
  max-height: 300px;
  overflow-y: auto;
}

.error-notification-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  transition: background-color 0.2s;
}

.error-notification-item:last-child {
  border-bottom: none;
}

.error-notification-item:hover {
  background-color: #f9f9f9;
}

.error-notification-content {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 10px;
}

.error-notification-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.error-notification-message {
  font-size: 14px;
  line-height: 1.4;
  color: #333;
  word-break: break-word;
}

.error-notification-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: #999;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.2s, color 0.2s;
}

.error-notification-close:hover {
  background-color: #e0e0e0;
  color: #666;
}

/* 错误严重程度样式 */
.error-critical {
  border-left: 4px solid #d32f2f;
}

.error-high {
  border-left: 4px solid #f57c00;
}

.error-medium {
  border-left: 4px solid #fbc02d;
}

.error-low {
  border-left: 4px solid #388e3c;
}

.error-default {
  border-left: 4px solid #757575;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .error-notification-container {
    width: calc(100vw - 40px);
    right: 20px;
    left: 20px;
  }
  
  .error-notification-message {
    font-size: 13px;
  }
}