/**
 * =====================================================
 * 户外玩家联盟 - 设计系统 (Design System)
 * =====================================================
 * 版本: 1.0.0
 * 描述: 完整的CSS变量体系和通用工具类
 * 主色调: 爱马仕橙 #D98329
 * 技术栈: CSS3 + CSS Variables + Flexbox + Grid
 * =====================================================
 */

/* ============================================
   1. CSS变量定义 (Design Tokens)
   ============================================ */
:root {
  /* 主色调 - 爱马仕橙 */
  --primary: #D98329;
  --primary-light: #E89F5C;
  --primary-dark: #B86920;
  --primary-rgb: 217, 131, 41;

  /* 辅助色系 */
  --secondary: #333333;
  --background: #F5F5F5;
  --surface: #FFFFFF;

  /* 文本颜色 */
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --text-white: #FFFFFF;

  /* 边框和分割线 */
  --border: #E0E0E0;
  --border-light: #F0F0F0;

  /* 功能色 - 语义化颜色 */
  --success: #28A745;
  --success-light: #D4EDDA;
  --error: #DC3545;
  --error-light: #F8D7DA;
  --warning: #FFC107;
  --warning-light: #FFF3CD;
  --info: #007BFF;
  --info-light: #D1ECF1;

  /* 阴影系统 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.15);

  /* 主色阴影 */
  --shadow-primary: 0 2px 12px rgba(217, 131, 41, 0.25);

  /* 圆角系统 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50%;

  /* 字体系统 */
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 10px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;
  --font-size-xxxl: 32px;

  /* 行高 */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* 字重 */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  /* 间距系统 (基于4px网格) */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --spacing-xxxl: 48px;

  /* 过渡动画 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Z-index层级 */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-toast: 800;

  /* 前台布局尺寸 */
  --front-max-width: 480px;

  /* 后台侧边栏宽度 */
  --sidebar-width: 280px;

  /* 顶部导航栏高度 */
  --nav-height-front: 56px;
  --nav-height-admin: 60px;

  /* 底部导航栏高度 */
  --bottom-nav-height: 60px;
}

/* ============================================
   2. CSS重置和基础样式
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none !important;
  color: inherit;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

ul,
ol {
  list-style: none;
}

/* ============================================
   3. 排版工具类
   ============================================ */

/* 文本对齐 */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }

/* 文本颜色 */
.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-white { color: var(--text-white) !important; }
.text-success { color: var(--success) !important; }
.text-error { color: var(--error) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }

/* 字体大小 */
.text-xs { font-size: var(--font-size-xs) !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-base { font-size: var(--font-size-base) !important; }
.text-md { font-size: var(--font-size-md) !important; }
.text-lg { font-size: var(--font-size-lg) !important; }
.text-xl { font-size: var(--font-size-xl) !important; }
.text-xxl { font-size: var(--font-size-xxl) !important; }

/* 字体粗细 */
.font-normal { font-weight: var(--font-weight-normal) !important; }
.font-medium { font-weight: var(--font-weight-medium) !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }

/* 文本溢出处理 */
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.text-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   4. 间距工具类
   ============================================ */

/* 外边距 (Margin) */
.mt-0 { margin-top: 0 !important; }
.mt-5 { margin-top: 5px !important; }
.mt-10 { margin-top: 10px !important; }
.mt-15 { margin-top: 15px !important; }
.mt-20 { margin-top: 20px !important; }
.mt-30 { margin-top: 30px !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-5 { margin-bottom: 5px !important; }
.mb-10 { margin-bottom: 10px !important; }
.mb-15 { margin-bottom: 15px !important; }
.mb-20 { margin-bottom: 20px !important; }
.mb-30 { margin-bottom: 30px !important; }

.ml-0 { margin-left: 0 !important; }
.ml-5 { margin-left: 5px !important; }
.ml-10 { margin-left: 10px !important; }
.ml-auto { margin-left: auto !important; }

.mr-0 { margin-right: 0 !important; }
.mr-5 { margin-right: 5px !important; }
.mr-10 { margin-right: 10px !important; }
.mr-auto { margin-right: auto !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.my-auto { margin-top: auto !important; margin-bottom: auto !important; }

/* 内边距 (Padding) */
.p-0 { padding: 0 !important; }
.p-5 { padding: 5px !important; }
.p-10 { padding: 10px !important; }
.p-15 { padding: 15px !important; }
.p-20 { padding: 20px !important; }
.p-30 { padding: 30px !important; }

.pt-10 { padding-top: 10px !important; }
.pt-20 { padding-top: 20px !important; }
.pb-10 { padding-bottom: 10px !important; }
.pb-20 { padding-bottom: 20px !important; }
.pl-10 { padding-left: 10px !important; }
.pr-10 { padding-right: 10px !important; }

/* ============================================
   5. 显示与定位工具类
   ============================================ */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flexbox工具类 */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-start { justify-content: flex-start !important; }
.justify-end { justify-content: flex-end !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-around { justify-content: space-around !important; }

.align-start { align-items: flex-start !important; }
.align-end { align-items: flex-end !important; }
.align-center { align-items: center !important; }
.align-baseline { align-items: baseline !important; }
.align-stretch { align-items: stretch !important; }

.flex-1 { flex: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.gap-8 { gap: 8px !important; }
.gap-10 { gap: 10px !important; }
.gap-12 { gap: 12px !important; }
.gap-16 { gap: 16px !important; }
.gap-20 { gap: 20px !important; }

/* 定位 */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* ============================================
   6. 按钮组件
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  line-height: 1.5;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

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

/* 主按钮 - 爱马仕橙 */
.btn-primary {
  background-color: var(--primary);
  color: var(--text-white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-primary);
}

/* 次要按钮 */
.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-secondary:hover {
  background-color: rgba(217, 131, 41, 0.05);
}

/* 成功按钮 */
.btn-success {
  background-color: var(--success);
  color: var(--text-white);
}

/* 危险按钮 */
.btn-danger {
  background-color: var(--error);
  color: var(--text-white);
}

/* 警告按钮 */
.btn-warning {
  background-color: var(--warning);
  color: var(--text-primary);
}

/* 信息按钮 */
.btn-info {
  background-color: var(--info);
  color: var(--text-white);
}

/* 幽灵按钮 */
.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

/* 按钮尺寸 */
.btn-sm {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: var(--font-size-md);
  border-radius: var(--radius-lg);
}

.btn-xl {
  padding: 16px 36px;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

/* 圆形按钮 */
.btn-rounded {
  border-radius: 50px;
}

/* 块级按钮 */
.btn-block {
  width: 100%;
  display: flex;
}

/* 图标按钮 */
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

.btn-icon.btn-lg {
  width: 48px;
  height: 48px;
}

/* ============================================
   7. 卡片组件
   ============================================ */
.card {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-body {
  padding: var(--spacing-base);
}

.card-header {
  padding: var(--spacing-base);
  border-bottom: 1px solid var(--border-light);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
}

.card-footer {
  padding: var(--spacing-base);
  border-top: 1px solid var(--border-light);
  background-color: rgba(0, 0, 0, 0.01);
}

.card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background-size: cover;
  background-position: center;
}

.card-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

/* 可点击卡片 */
.card-clickable {
  cursor: pointer;
}

.card-clickable:hover {
  transform: translateY(-2px);
}

/* ============================================
   8. 表单组件
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-base);
}

.form-label {
  display: block;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--surface);
  transition: all var(--transition-normal);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control:disabled,
.form-control[readonly] {
  background-color: var(--background);
  cursor: not-allowed;
  opacity: 0.65;
}

/* 搜索输入框 - 圆角样式 */
.form-search {
  border-radius: 50px;
  padding-left: 20px;
  padding-right: 44px;
}

/* 下拉选择框 */
.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--surface);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23333' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px 12px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 40px;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-normal);
}

.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* 多行文本框 */
textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

/* 表单验证状态 */
.form-group.has-error .form-control {
  border-color: var(--error);
}

.form-group.has-error .form-control:focus {
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.has-success .form-control {
  border-color: var(--success);
}

.form-error-msg {
  color: var(--error);
  font-size: var(--font-size-sm);
  margin-top: 4px;
}

.form-help-text {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin-top: 4px;
}

/* ============================================
   9. 标签和徽章
   ============================================ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.tag-primary {
  background-color: rgba(217, 131, 41, 0.1);
  color: var(--primary);
}

.tag-success {
  background-color: var(--success-light);
  color: var(--success);
}

.tag-error {
  background-color: var(--error-light);
  color: var(--error);
}

.tag-warning {
  background-color: var(--warning-light);
  color: #856404;
}

.tag-info {
  background-color: var(--info-light);
  color: var(--info);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 6px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--text-white);
  background-color: var(--error);
  border-radius: 9px;
  position: absolute;
  top: -2px;
  right: -4px;
}

/* ============================================
   10. 列表组件
   ============================================ */
.list {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.list-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-base);
  border-bottom: 1px solid var(--border-light);
  transition: background-color var(--transition-fast);
  cursor: pointer;
}

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

.list-item:hover {
  background-color: rgba(217, 131, 41, 0.03);
}

.list-item.active {
  background-color: rgba(217, 131, 41, 0.08);
  color: var(--primary);
}

.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: rgba(217, 131, 41, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.list-item-content {
  flex: 1;
  margin-left: var(--spacing-base);
  min-width: 0;
}

.list-item-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: 2px;
}

.list-item-desc {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.list-item-action {
  flex-shrink: 0;
  margin-left: var(--spacing-base);
}

/* ============================================
   11. 表格组件
   ============================================ */
.table-container {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-base);
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.table th {
  background-color: var(--background);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.table tbody tr:hover {
  background-color: rgba(217, 131, 41, 0.02);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ============================================
   12. 分页组件
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.page-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.page-item:hover {
  background-color: var(--background);
  color: var(--primary);
  border-color: var(--primary);
}

.page-item.active {
  background-color: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
}

.page-item.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   13. 头像组件
   ============================================ */
.avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--background);
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-md { width: 40px; height: 40px; }
.avatar-lg { width: 48px; height: 48px; }
.avatar-xl { width: 64px; height: 64px; }
.avatar-xxl { width: 80px; height: 80px; }

/* 在线状态指示器 */
.avatar .status-dot {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  border: 2px solid var(--surface);
}

.status-online { background-color: var(--success); }
.status-offline { background-color: var(--text-muted); }
.status-busy { background-color: var(--error); }

/* ============================================
   14. 空状态组件
   ============================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxxl) var(--spacing-base);
  text-align: center;
}

.empty-state-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  background-color: rgba(217, 131, 41, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  margin-bottom: var(--spacing-lg);
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-state-desc {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  max-width: 300px;
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   15. 加载状态组件
   ============================================ */
.loading-spinner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 骨架屏加载效果 */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--background) 25%,
    var(--border-light) 50%,
    var(--background) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 16px;
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
}

.skeleton-img {
  height: 180px;
  width: 100%;
  border-radius: var(--radius-lg);
}

/* ============================================
   16. 分割线
   ============================================ */
.divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: var(--spacing-lg) 0;
}

.divider-with-text {
  display: flex;
  align-items: center;
  text-align: center;
  margin: var(--spacing-lg) 0;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.divider-with-text::before,
.divider-with-text::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--border-light);
}

.divider-with-text::before {
  margin-right: var(--spacing-base);
}

.divider-with-text::after {
  margin-left: var(--spacing-base);
}

/* ============================================
   17. 工具提示 (Tooltip)
   ============================================ */
.tooltip-wrapper {
  position: relative;
  display: inline-block;
}

.tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background-color: rgba(51, 51, 51, 0.95);
  color: var(--text-white);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-tooltip);
  pointer-events: none;
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: rgba(51, 51, 51, 0.95);
}

.tooltip-wrapper:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   18. 模态框基础样式
   ============================================ */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.modal-backdrop.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background-color: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.modal.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-base) var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--background);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: var(--spacing-base) var(--spacing-lg);
  border-top: 1px solid var(--border-light);
}

/* ============================================
   19. Toast提示组件容器
   ============================================ */
.toast-container {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 400px;
  width: 90vw;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  animation: toastSlideIn 0.3s ease forwards;
  pointer-events: auto;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--error); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.info .toast-icon { color: var(--info); }

.toast-message {
  flex: 1;
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

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

/* ============================================
   20. 前台专用样式 (移动优先)
   ============================================ */

/* 前台页面容器 - 居中显示，最大宽度480px */
.front-container {
  max-width: var(--front-max-width);
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  background-color: var(--background);
}

/* 顶部导航栏 - 固定定位 */
.front-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--front-max-width);
  height: var(--nav-height-front);
  background: linear-gradient(to bottom, var(--primary), transparent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-base);
  z-index: var(--z-fixed);
  color: var(--text-white);
}

.front-logo {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.front-logo i {
  font-size: 24px;
}

.front-nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.front-nav-icon {
  font-size: 22px;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-fast);
}

.front-nav-icon:active {
  transform: scale(0.95);
}

/* 底部Tab导航栏 - 固定定位（全屏宽度） */
.front-footer-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--bottom-nav-height);
  background-color: #fff;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: var(--z-fixed);
  padding-bottom: env(safe-area-inset-bottom);
}

.footer-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: 4px 12px;
  -webkit-tap-highlight-color: transparent;
}

.footer-nav-item i {
  font-size: 22px;
  transition: transform var(--transition-fast);
}

.footer-nav-item:active i {
  transform: scale(0.9);
}

.footer-nav-item.active {
  color: var(--primary);
}

/* 页面主内容区域 - 为顶部和底部导航留出空间 */
.front-main {
  padding-top: var(--nav-height-front);
  padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom));
}

/* 模块标题样式 */
.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-base);
  margin-bottom: var(--spacing-sm);
}

.module-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  padding-left: 10px;
  border-left: 4px solid var(--primary);
  line-height: 1.2;
}

.module-more {
  font-size: var(--font-size-sm);
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.module-more:active {
  opacity: 0.7;
}

/* 公告栏样式 */
.notice-bar {
  background-color: #FFF5E6;
  padding: 8px var(--spacing-base);
  font-size: var(--font-size-xs);
  color: var(--primary);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.notice-bar i {
  margin-right: 10px;
  flex-shrink: 0;
}

.notice-scroll {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.notice-text {
  display: inline-block;
  white-space: nowrap;
  animation: scrollNotice 20s linear infinite;
  padding-left: 100%;
}

@keyframes scrollNotice {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

/* 搜索栏样式 */
.search-bar {
  padding: var(--spacing-md) var(--spacing-base);
  background-color: var(--surface);
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-input-wrapper {
  flex: 1;
  position: relative;
}

.search-input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0 16px;
  font-size: var(--font-size-base);
  outline: none;
  transition: all var(--transition-normal);
  background-color: var(--background);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.1);
  background-color: var(--surface);
}

.search-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.search-btn:active {
  transform: scale(0.95);
}

/* ============================================
   21. 后台专用样式
   ============================================ */

/* 后台整体布局 */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--background);
}

/* 侧边栏 */
.admin-sidebar {
  width: var(--sidebar-width);
  background-color: var(--surface);
  box-shadow: var(--shadow-md);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: var(--z-fixed);
  transition: transform var(--transition-slow);
}

.admin-sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 10px;
}

.admin-sidebar-logo {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-sidebar-logo i {
  font-size: 26px;
}

/* 导航菜单 */
.admin-nav-menu {
  list-style: none;
  padding: 0 10px;
}

.admin-nav-item {
  margin-bottom: 2px;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
}

.admin-nav-link:hover {
  background-color: rgba(217, 131, 41, 0.05);
  color: var(--primary);
}

.admin-nav-link.active {
  background-color: rgba(217, 131, 41, 0.1);
  color: var(--primary);
  border-left-color: var(--primary);
}

.admin-nav-link i {
  font-size: 18px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.admin-nav-text {
  font-size: var(--font-size-base);
  flex: 1;
}

/* 子菜单 */
.admin-submenu {
  list-style: none;
  background-color: rgba(217, 131, 41, 0.03);
  display: none;
  padding: 4px 0;
}

.admin-submenu.show {
  display: block;
}

.admin-subitem {
  margin: 0;
}

.admin-sublink {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 52px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
}

.admin-sublink:hover {
  background-color: rgba(217, 131, 41, 0.08);
  color: var(--primary);
}

.admin-sublink.active {
  background-color: rgba(217, 131, 41, 0.12);
  color: var(--primary);
  font-weight: var(--font-weight-medium);
}

/* 主内容区 */
.admin-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 顶部导航栏 */
.admin-topbar {
  background-color: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 0 24px;
  height: var(--nav-height-admin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.admin-topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sidebar-toggle {
  font-size: 20px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
  background-color: var(--background);
  color: var(--primary);
}

.breadcrumb {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb-separator {
  margin: 0 8px;
  color: var(--text-muted);
}

.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.admin-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.admin-user-info:hover {
  background-color: var(--background);
}

.admin-user-name {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
}

/* 内容区域 */
.admin-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

/* 内容头部 */
.content-header {
  margin-bottom: 20px;
}

.page-title {
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: 8px;
}

.page-description {
  font-size: var(--font-size-base);
  color: var(--text-muted);
}

/* 统计卡片网格 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--text-white);
  flex-shrink: 0;
}

.stat-icon.primary { background-color: var(--primary); }
.stat-icon.success { background-color: var(--success); }
.stat-icon.warning { background-color: var(--warning); }
.stat-icon.danger { background-color: var(--error); }
.stat-icon.info { background-color: var(--info); }

.stat-info {
  flex: 1;
}

.stat-value {
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* 操作按钮组 */
.action-btns {
  display: flex;
  gap: 8px;
  align-items: center;
}

.action-btn {
  padding: 5px 12px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: var(--font-weight-medium);
}

.action-btn.edit {
  background-color: var(--primary);
  color: var(--text-white);
}

.action-btn.status {
  background-color: var(--warning);
  color: var(--text-primary);
}

.action-btn.delete {
  background-color: var(--error);
  color: var(--text-white);
}

.action-btn.view {
  background-color: var(--info);
  color: var(--text-white);
}

.action-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   22. 响应式断点
   ============================================ */

/* 超小屏幕 (< 375px) */
@media (max-width: 374px) {
  :root {
    --font-size-base: 13px;
    --spacing-base: 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* 小屏幕手机 (375px - 479px) */
@media (min-width: 375px) and (max-width: 479px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 大屏手机/小平板 (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.show {
    transform: translateX(0);
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.1);
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-topbar {
    width: 100%;
  }

  .admin-content {
    padding: 16px;
  }

  .admin-user-name {
    display: none;
  }

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

  .table {
    min-width: 700px;
  }
}

/* 平板设备 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --sidebar-width: 240px;
  }

  .admin-content {
    padding: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .table {
    min-width: 750px;
  }
}

/* 小桌面设备 (1024px - 1279px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  :root {
    --sidebar-width: 260px;
  }

  .admin-content {
    max-width: 1200px;
  }
}

/* 大桌面设备 (1280px+) */
@media (min-width: 1280px) {
  .admin-content {
    max-width: 1400px;
  }
}

/* ============================================
   23. 动画关键帧
   ============================================ */

/* 淡入动画 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 从上淡入 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 从下淡入 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 从左淡入 */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 从右淡入 */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 缩放弹入 */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 脉冲动画 */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* 抖动动画（用于错误提示） */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

/* 应用抖动的类 */
.shake {
  animation: shake 0.5s ease-in-out;
}

/* ============================================
   24. 打印样式
   ============================================ */
@media print {
  .front-header,
  .front-footer-nav,
  .admin-sidebar,
  .admin-topbar,
  .toast-container,
  .btn,
  .no-print {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ============================================
   25. 无障碍辅助
   ============================================ */

/* 焦点可见性（键盘导航） */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 减少动画（尊重用户偏好） */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .notice-text {
    animation: none;
  }

  .spinner {
    animation: none;
    border-style: dashed;
  }
}

/* ============================================
   26. 前端页面基础样式 (Front-end Base Styles)
   所有使用 layout/layout 继承的页面自动生效
   ============================================ */

/* 26.1 模板标准CSS变量（与模板文件保持一致） */
:root {
  --ai-blue: #409EFF;
  --warning: #E6A23C;
  --danger: #F56C6C;
  --white: #FFFFFF;
  --gray-1: #333333;
  --gray-2: #666666;
  --gray-3: #999999;
  --gray-4: #F5F5F5;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* 26.2 全局基础重置 */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; }
body { background-color: var(--gray-4); padding-bottom: 70px; }
a { text-decoration: none !important; color: inherit !important; }

/* 26.3 顶部导航栏（header.html 使用）- 与首页完全统一 */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 56px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
  z-index: 999;
  color: var(--white);
}
.top-nav .logo {
  font-size: 18px;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
}
.top-nav .logo i { font-size: 24px; }
.top-nav .nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.top-nav .nav-icon {
  font-size: 22px;
  cursor: pointer;
  color: #fff;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}
.top-nav .nav-icon:hover { opacity: 1; }
.top-nav .nav-icon:active { transform: scale(0.95); }

/* 顶部导航中的头像 */
.top-nav .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #fff;
  border: 2px solid var(--secondary);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.top-nav .avatar:hover { transform: scale(1.05); }
.top-nav .avatar img { width: 100%; height: 100%; object-fit: cover; }

/* 顶部导航 - 通知角标容器（替代内联 style="position:relative"） */
.nav-notification-wrapper { position: relative; display: inline-block; }
/* 顶部导航 - 未读数角标（替代内联样式） */
.nav-unread-badge {
  position: absolute; top: -5px; right: -5px;
  background-color: var(--danger, #F56C6C); color: #fff;
  border-radius: 50%; width: 16px; height: 16px;
  font-size: 10px; display: flex; align-items: center; justify-content: center;
}

/* 26.4 底部信息区域（footer.html 使用）- 零内联样式版本 */
.front-footer-info {
  background-color: var(--gray-4);
  padding: 20px 16px calc(var(--bottom-nav-height, 60px) + 20px);
  text-align: center; font-size: 12px; color: var(--gray-3); line-height: 1.8;
}
.footer-copyright { margin-bottom: 8px; }
.footer-icp { margin-bottom: 8px; }
.footer-icp a { color: var(--gray-3); text-decoration: none; }
.footer-icp a:hover { color: var(--primary); }

/* 友情链接 */
.friend-links { margin-top: 12px; }
.friend-links-label { color: var(--gray-2); margin-right: 10px; }
.friend-links a {
  color: var(--gray-3); margin: 0 6px; text-decoration: none;
  transition: color 0.2s ease;
}
.friend-links a:hover { color: var(--primary); }
@media (max-width: 374px) {
  .friend-links a { display: inline-block; margin: 4px 6px !important; }
}

.footer-powered { opacity: 0.7; font-size: 10px; margin-top: 16px; }

/* 26.5 空状态组件（empty-state.html 使用） */
.empty-state {
  text-align: center; padding: 48px 20px;
}
.empty-state-icon { margin-bottom: 16px; }
.empty-state-icon i {
  font-size: 48px; color: var(--gray-3);
}
.empty-state-title {
  font-size: 16px; font-weight: 500; color: var(--gray-2);
  margin-bottom: 8px;
}
.empty-state-desc {
  font-size: 13px; color: var(--gray-3);
  margin-bottom: 20px;
}
.empty-state-btn {
  display: inline-block; padding: 8px 24px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; border-radius: 20px;
  font-size: 14px; font-weight: 600;
  transition: all 0.2s ease;
}
.empty-state-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(217,131,41,0.3); }

/* 26.4 底部Tab导航栏（navigation.html 使用） */
.front-footer-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: 60px;
  background-color: #fff;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom);
}
.footer-nav-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  font-size: 11px; color: var(--gray-3); cursor: pointer;
  transition: all 0.2s ease; padding: 6px 12px; border-radius: 8px;
  -webkit-tap-highlight-color: transparent;
}
.footer-nav-item i { font-size: 22px; line-height: 1; margin-bottom: 2px; }
.footer-nav-item.active { color: var(--primary); }
.footer-nav-item:active { transform: scale(0.92); opacity: 0.7; }

/* 26.5 通用头像样式 */
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background-color: #fff; border: 2px solid var(--primary-light);
  overflow: hidden; display: inline-block; flex-shrink: 0;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* 26.6 通用卡片样式 */
.card { background: #fff; border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.card-body { padding: 16px; }

/* 26.7 通用模块标题 */
.module-title {
  display: flex; justify-content: space-between; align-items: center;
  margin: 16px 16px 10px; padding: 0 4px;
}
.module-title-text {
  font-size: 17px; font-weight: 700; color: var(--gray-1);
  padding-left: 10px; border-left: 4px solid var(--primary);
  line-height: 1.2;
}
.module-more { font-size: 13px; color: var(--primary); cursor: pointer; }

/* 26.8 通用按钮样式 */
.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; border: none; border-radius: 20px;
  padding: 8px 24px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.btn-primary-custom:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(217,131,41,0.3); }

.btn-outline-custom {
  background: transparent; color: var(--primary);
  border: 1px solid var(--primary); border-radius: 20px;
  padding: 8px 24px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.btn-outline-custom:hover { background: var(--primary); color: #fff; }

/* 26.9 个人中心页面样式 - 与模板完全统一 */
.profile-page { min-height: 100vh; background: var(--gray-4); padding-bottom: 70px; padding-top: 56px; }
.profile-header {
  background: linear-gradient(to bottom, var(--primary), transparent);
  padding: 30px 16px 50px; text-align: center; position: relative;
}
.profile-avatar-wrapper { display: inline-block; position: relative; margin-bottom: 12px; }
.profile-avatar {
  width: 80px; height: 80px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.9);
  object-fit: cover; background: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.profile-name { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.profile-level-badge {
  display: inline-block; background: rgba(255,255,255,0.25);
  color: #fff; font-size: 11px; padding: 3px 12px; border-radius: 10px;
  backdrop-filter: blur(4px);
}
.profile-stats-card {
  margin: -28px 16px 14px; background: #fff; border-radius: 14px;
  padding: 18px 0; box-shadow: 0 4px 16px rgba(0,0,0,0.08); position: relative; z-index: 10; display: flex;
}
.stat-item { flex: 1; text-align: center; position: relative; }
.stat-item:not(:last-child)::after {
  content: ''; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 24px; background: #E8E8E8;
}
.stat-num { font-size: 22px; font-weight: 700; color: #333; line-height: 1.2; }
.stat-label { font-size: 11px; color: #999; margin-top: 2px; }
.menu-section { margin: 0 16px 12px; background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.menu-item {
  display: flex; align-items: center; padding: 14px 16px; cursor: pointer;
  transition: background 0.15s; text-decoration: none; color: inherit;
}
.menu-item:not(:last-child) { border-bottom: 1px solid #F5F5F5; }
.menu-item:hover { background: #FAFAFA; }
.menu-icon {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  margin-right: 12px; font-size: 15px; color: #fff; flex-shrink: 0;
}
.menu-icon.orange { background: linear-gradient(135deg, #D98329, #E89F5C); }
.menu-icon.blue { background: linear-gradient(135deg, #409EFF, #66B1FF); }
.menu-icon.green { background: linear-gradient(135deg, #67C23A, #85CE61); }
.menu-icon.purple { background: linear-gradient(135deg, #909399, #B0B3B8); }
.menu-icon.red { background: linear-gradient(135deg, #F56C6C, #F89898); }
.menu-text { flex: 1; font-size: 15px; color: #333; font-weight: 500; }
.menu-arrow { color: #CCC; font-size: 13px; }
.logout-btn {
  margin: 20px 16px; width: calc(100% - 32px); padding: 13px;
  background: #fff; border: 1px solid #E8E8E8; border-radius: 14px;
  color: #F56C6C; font-size: 15px; font-weight: 500; cursor: pointer;
  transition: all 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.logout-btn:hover { background: #FEF0F0; border-color: #F56C6C; }
.logout-btn:active { background: #FDE2E2; }

/* 26.5 通用头像样式 */

/* 个人中心页面 - 统一使用上方定义 */
/* 注意：.profile-page 和 .profile-header 样式已在 26.9 节定义 */

/* 个人资料头部区域 */

.profile-avatar-wrapper {
  display: inline-block;
  position: relative;
  margin-bottom: 12px;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.9);
  object-fit: cover;
  background-color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.profile-name {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.profile-level-badge {
  display: inline-block;
  background: rgba(255,255,255,0.25);
  color: #fff;
  font-size: 11px;
  padding: 3px 12px;
  border-radius: 10px;
  backdrop-filter: blur(4px);
}

/* 统计数据卡片 */
.profile-stats-card {
  margin: -28px 16px 14px;
  background: #fff;
  border-radius: 14px;
  padding: 18px 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  position: relative;
  z-index: 10;
  display: flex;
}

.stat-item {
  flex: 1;
  text-align: center;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 24px;
  background: #E8E8E8;
}

.stat-num {
  font-size: 22px;
  font-weight: 700;
  color: #333;
  line-height: 1.2;
}

.stat-label {
  font-size: 11px;
  color: #999;
  margin-top: 2px;
}

/* 功能菜单列表 */
.menu-section {
  margin: 0 16px 12px;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
  color: inherit;
}
.menu-item:not(:last-child) { border-bottom: 1px solid #F5F5F5; }
.menu-item:hover { background: #FAFAFA; }
.menu-item:active { background: #F0F0F0; }

.menu-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  font-size: 15px;
  color: #fff;
  flex-shrink: 0;
}
.menu-icon.orange { background: linear-gradient(135deg, #D98329, #E89F5C); }
.menu-icon.blue { background: linear-gradient(135deg, #409EFF, #66B1FF); }
.menu-icon.green { background: linear-gradient(135deg, #67C23A, #85CE61); }
.menu-icon.purple { background: linear-gradient(135deg, #909399, #B0B3B8); }
.menu-icon.red { background: linear-gradient(135deg, #F56C6C, #F89898); }

.menu-text {
  flex: 1;
  font-size: 15px;
  color: #333;
  font-weight: 500;
}

.menu-arrow {
  color: #CCC;
  font-size: 13px;
}

/* 退出登录按钮 */
.logout-btn {
  margin: 20px 16px;
  width: calc(100% - 32px);
  padding: 13px;
  background: #fff;
  border: 1px solid #E8E8E8;
  border-radius: 14px;
  color: #F56C6C;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.logout-btn:hover { background: #FEF0F0; border-color: #F56C6C; }
.logout-btn:active { background: #FDE2E2; }

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  :root {
    --border: #666666;
    --text-muted: #555555;
  }

  .form-control {
    border-width: 2px;
  }
}