/* ================================================
   移动端原生APP风格覆盖样式
   作用域：.mobile-web-mode (body class)
   覆盖 Bootstrap 3 + exam.css
   ================================================ */

/* ========== CSS 变量 ========== */
.mobile-web-mode {
  --primary: #4A90D9;
  --primary-dark: #3A7BC8;
  --primary-light: rgba(74,144,217,0.1);
  --success: #52c41a;
  --danger: #ff4d4f;
  --text: #1a1a1a;
  --text-secondary: #666;
  --text-muted: #999;
  --bg: #f5f5f5;
  --bg-card: #fff;
  --border: rgba(0,0,0,0.06);
  --shadow: 0 1px 6px rgba(0,0,0,0.06);
  --radius: 12px;
  --radius-lg: 16px;
  --topbar-height: 48px;
  --tabbar-height: 56px;
}

/* ========== 全局 ========== */
.mobile-web-mode {
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
  color: var(--text);
  font-size: 14px;
  padding-top: 0 !important;
}

* { -webkit-tap-highlight-color: transparent; }

.mobile-web-mode input,
.mobile-web-mode textarea,
.mobile-web-mode select { font-size: 16px !important; }

/* ========== Container ========== */
.mobile-web-mode .container {
  width: 100% !important;
  padding-left: 16px !important;
  padding-right: 16px !important;
}

/* ========== 栅格：移动端单列（不改 flex，用 float 覆盖） ========== */
.mobile-web-mode .row > .col-md-3,
.mobile-web-mode .row > .col-md-4,
.mobile-web-mode .row > .col-md-5,
.mobile-web-mode .row > .col-md-6,
.mobile-web-mode .row > .col-md-7,
.mobile-web-mode .row > .col-md-8,
.mobile-web-mode .row > .col-sm-4,
.mobile-web-mode .row > .col-sm-6 {
  float: none !important;
  width: 100% !important;
}

/* col-xs-6 保持 50%（图标网格） */
.mobile-web-mode .row > .col-xs-6 {
  float: left !important;
  width: 50% !important;
}

/* 隐藏桌面端元素 */
.mobile-web-mode .hidden-xs { display: none !important; }
.mobile-web-mode .hidden-sm { display: none !important; }

/* ========== 隐藏桌面导航/页脚 ========== */
.mobile-web-mode .navbar-exam,
.mobile-web-mode .exam-footer,
.mobile-web-mode .navbar,
.mobile-web-mode footer { display: none !important; }

.mobile-web-mode .m-header { display: none !important; }
.mobile-web-mode .m-tabbar { display: none !important; }

.mobile-web-mode .exam-content {
  padding-top: calc(var(--topbar-height) + env(safe-area-inset-top)) !important;
  padding-bottom: calc(var(--tabbar-height) + 16px + env(safe-area-inset-bottom)) !important;
  min-height: calc(100vh - var(--topbar-height) - var(--tabbar-height));
  overflow-x: hidden;
}

/* 首页无顶栏，不需要顶部间距 */
.page-home .exam-content {
  padding-top: 0 !important;
}

/* ========== 顶部导航栏 ========== */
.m-topbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  height: calc(var(--topbar-height) + env(safe-area-inset-top));
  background: rgba(255,255,255,0.88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 0.5px solid var(--border);
  display: flex; align-items: center;
  padding: env(safe-area-inset-top) 12px 0;
}

/* 首页：隐藏整个顶栏 */
.m-topbar.topbar-home { display: none !important; }

/* 首页：英雄区顶部留出安全区域 */
.page-home .exam-hero {
  padding-top: calc(28px + env(safe-area-inset-top)) !important;
}

/* 首页：浮动菜单按钮 */
.hero-menu-btn {
  position: fixed;
  top: calc(env(safe-area-inset-top) + 20px);
  right: 14px;
  z-index: 1001;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; line-height: 1;
  color: #fff !important;
  cursor: pointer; transition: opacity 0.15s;
}

.hero-menu-btn i { color: #fff !important; font-size: 24px !important; }
.hero-menu-btn:active { opacity: 0.7; }

.m-topbar .topbar-back,
.m-topbar .topbar-menu {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #333;
  cursor: pointer; flex-shrink: 0;
  border-radius: 50%; transition: background 0.15s;
}

.m-topbar .topbar-back:active,
.m-topbar .topbar-menu:active { background: rgba(0,0,0,0.06); }

.m-topbar .topbar-title {
  flex: 1; text-align: center;
  font-size: 17px; font-weight: 600; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ========== 侧边栏 ========== */
.m-sidebar-mask {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.45); z-index: 2000; display: none;
  backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px);
}

.m-sidebar {
  position: fixed; top: 0; left: -280px;
  width: 280px; height: 100%;
  background: #fff; z-index: 2001;
  transition: left 0.3s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
  box-shadow: 4px 0 24px rgba(0,0,0,0.12);
  border-radius: 0 16px 16px 0;
}

.m-sidebar.open { left: 0; }
.m-sidebar-mask.open { display: block; }

.m-sidebar-header {
  padding: 28px 20px 24px;
  background: linear-gradient(135deg, var(--primary), #5a7ddb);
  color: #fff;
  display: flex; align-items: center;
}

.m-sidebar-header .user-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.4);
  object-fit: cover; flex-shrink: 0;
}

.m-sidebar-header .user-text {
  flex: 1; margin-left: 14px;
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 52px;
}

.m-sidebar-header .user-name { font-size: 17px; font-weight: 600; line-height: 1.3; }
.m-sidebar-header .user-info { font-size: 12px; opacity: 0.75; margin-top: 4px; }

.m-sidebar-nav { padding: 8px; }

.m-sidebar-nav a {
  display: flex; align-items: center;
  padding: 12px 14px; color: #333;
  text-decoration: none; font-size: 15px;
  border-radius: 12px; transition: background 0.15s; margin: 1px 0;
}

.m-sidebar-nav a:active { background: #f0f0f0; }
.m-sidebar-nav a i { width: 24px; margin-right: 12px; text-align: center; color: #666; font-size: 16px; }
.m-sidebar-nav a.active { color: var(--primary); background: #f0f7ff; font-weight: 500; }
.m-sidebar-nav .nav-divider { height: 1px; background: #f0f0f0; margin: 6px 14px; }

/* ========== 底部 TabBar ========== */
.m-bottom-tabbar {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 999;
  height: calc(var(--tabbar-height) + env(safe-area-inset-bottom));
  background: rgba(255,255,255,0.88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-top: 0.5px solid var(--border);
  display: flex; align-items: center; justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom);
}

.m-bottom-tabbar a {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-decoration: none; color: #999;
  font-size: 10px; padding: 6px 0;
  transition: color 0.2s, transform 0.15s;
}

.m-bottom-tabbar a i { font-size: 22px; margin-bottom: 3px; transition: transform 0.15s; }
.m-bottom-tabbar a span { font-weight: 500; }
.m-bottom-tabbar a.active { color: var(--primary); }
.m-bottom-tabbar a.active i { transform: scale(1.1); }
.m-bottom-tabbar a:active { transform: scale(0.9); }

/* ========== 排版 ========== */
.mobile-web-mode h1 { font-size: 22px !important; }
.mobile-web-mode h2 { font-size: 18px !important; }
.mobile-web-mode h3 { font-size: 16px !important; }
.mobile-web-mode h4 { font-size: 15px !important; }
.mobile-web-mode p { font-size: 14px; line-height: 1.6; color: var(--text-secondary); }
.mobile-web-mode a { color: var(--primary); text-decoration: none; }

/* ========== 表单 ========== */
.mobile-web-mode .form-control {
  width: 100% !important; height: 44px;
  padding: 10px 14px; font-size: 15px;
  color: var(--text); background: var(--bg-card);
  border: 1px solid #e0e0e0; border-radius: 10px;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}

.mobile-web-mode .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light); outline: none;
}

.mobile-web-mode .form-group { margin-bottom: 16px; }
.mobile-web-mode .form-group label,
.mobile-web-mode .control-label { display: block; font-size: 14px; font-weight: 500; color: var(--text); margin-bottom: 6px; }

/* ========== 按钮 ========== */
.mobile-web-mode .btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 10px 20px;
  font-size: 14px; font-weight: 600;
  border-radius: 10px; border: none;
  transition: transform 0.15s, opacity 0.15s;
  min-height: 44px; line-height: 1.4;
  cursor: pointer; text-decoration: none;
}

.mobile-web-mode .btn:active { transform: scale(0.97); opacity: 0.85; }
.mobile-web-mode .btn-primary { background: var(--primary); color: #fff; border-radius: 24px; }
.mobile-web-mode .btn-primary:hover, .mobile-web-mode .btn-primary:focus { background: var(--primary-dark); color: #fff; }
.mobile-web-mode .btn-default { background: #f5f5f5; color: #666; border: 1px solid #e0e0e0; border-radius: 24px; }
.mobile-web-mode .btn-lg { padding: 13px 24px; font-size: 16px; min-height: 50px; }
.mobile-web-mode .btn-block { display: flex; width: 100%; border-radius: 12px; }

/* ========== 表格 ========== */
.mobile-web-mode table { width: 100%; font-size: 13px; }
.mobile-web-mode table th { background: #f8f8f8; font-weight: 600; font-size: 12px; color: var(--text-secondary); padding: 10px 12px; white-space: nowrap; }
.mobile-web-mode table td { padding: 10px 12px; vertical-align: middle; border-top: 0.5px solid var(--border); }

.mobile-web-mode .table-responsive {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  border-radius: var(--radius); box-shadow: var(--shadow); margin: 12px;
}

/* ========== 分页 ========== */
.mobile-web-mode .pagination {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 6px; padding: 16px 12px; margin: 0;
}

.mobile-web-mode .pagination > li > a,
.mobile-web-mode .pagination > li > span {
  min-width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; border-radius: 10px;
  border: 1px solid #e8e8e8; background: #fff;
  color: var(--text); padding: 0 10px; transition: all 0.2s;
}

.mobile-web-mode .pagination > .active > a,
.mobile-web-mode .pagination > .active > span {
  background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 600;
}

.mobile-web-mode .pagination > li > a:active { transform: scale(0.95); }

/* ========== 首页英雄区 ========== */
.mobile-web-mode .exam-hero {
  padding: 28px 16px 24px !important;
  border-radius: 0 0 24px 24px;
  background: linear-gradient(135deg, #4A90D9 0%, #5a7ddb 100%) !important;
  color: #fff; position: relative; overflow: hidden;
}

.mobile-web-mode .exam-hero::before {
  content: ''; position: absolute;
  top: -60px; right: -40px;
  width: 200px; height: 200px; border-radius: 50%;
  background: rgba(255,255,255,0.06); pointer-events: none;
}

.mobile-web-mode .exam-hero h1 {
  font-size: 24px !important; font-weight: 700;
  color: #fff !important; margin-bottom: 8px;
  position: relative; z-index: 1;
}

.mobile-web-mode .exam-hero p {
  font-size: 14px; color: rgba(255,255,255,0.85);
  margin-bottom: 16px; position: relative; z-index: 1;
}

.mobile-web-mode .exam-hero .hero-stats {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 8px !important; margin-top: 20px;
  position: relative; z-index: 1;
}

.mobile-web-mode .stat-item { text-align: center; }
.mobile-web-mode .stat-num { font-size: 20px; font-weight: 700; color: #fff; display: block; }
.mobile-web-mode .stat-label { font-size: 11px; color: rgba(255,255,255,0.75); margin-top: 2px; display: block; }

/* 英雄区按钮 */
.mobile-web-mode .exam-hero .col-md-7 { position: relative; z-index: 1; }

.mobile-web-mode .hero-btn,
.mobile-web-mode .hero-btn-outline {
  display: inline-flex !important; align-items: center; gap: 6px;
  border-radius: 24px; padding: 11px 22px;
  font-size: 14px; font-weight: 600;
  text-decoration: none; position: relative; z-index: 2;
  cursor: pointer; transition: transform 0.15s;
}

.mobile-web-mode .hero-btn {
  background: #fff; color: var(--primary); border: none;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.mobile-web-mode .hero-btn-outline {
  background: rgba(255,255,255,0.15); color: #fff;
  border: 1px solid rgba(255,255,255,0.4); margin-left: 10px;
}

.mobile-web-mode .hero-btn:active,
.mobile-web-mode .hero-btn-outline:active { transform: scale(0.96); }

/* 隐藏桌面SVG */
.mobile-web-mode .exam-hero .col-md-5 { display: none !important; }

/* ========== Section 标题 ========== */
.mobile-web-mode .section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 16px 10px;
}

.mobile-web-mode .section-header h2,
.mobile-web-mode .section-header h4 {
  font-size: 17px !important; font-weight: 700;
  color: var(--text); margin: 0;
}

.mobile-web-mode .section-header .more-link { font-size: 13px; color: var(--text-muted); }

/* ========== 卡片 ========== */
.mobile-web-mode .exam-card,
.mobile-web-mode .paper-card,
.mobile-web-mode .cate-card,
.mobile-web-mode .news-card,
.mobile-web-mode .notice-card {
  border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; transition: transform 0.15s;
  background: var(--bg-card); margin-bottom: 0;
}

.mobile-web-mode .exam-card:active,
.mobile-web-mode .paper-card:active,
.mobile-web-mode .cate-card:active { transform: scale(0.98); }

.mobile-web-mode .card-body { padding: 14px 16px; }

.mobile-web-mode .card-footer {
  padding: 10px 16px;
  border-top: 0.5px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}

.mobile-web-mode .paper-title {
  font-size: 15px; font-weight: 600; line-height: 1.4; color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}

.mobile-web-mode .paper-meta { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 8px; }
.mobile-web-mode .paper-meta .meta-item { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 3px; }
.mobile-web-mode .paper-meta .meta-item i { font-size: 11px; }

.mobile-web-mode .paper-tags { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.mobile-web-mode .paper-tags .tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 500; }
.mobile-web-mode .paper-tags .tag-paid { background: rgba(255,77,79,0.08); color: var(--danger); }
.mobile-web-mode .paper-tags .tag-free { background: rgba(82,196,26,0.08); color: var(--success); }

.mobile-web-mode .paper-price { font-size: 15px; font-weight: 600; color: var(--danger); }
.mobile-web-mode .paper-price.is-free { color: var(--success); }

/* 开始考试按钮 */
.mobile-web-mode .btn-start {
  border-radius: 20px; padding: 6px 16px;
  font-size: 13px; font-weight: 600;
  color: var(--primary) !important;
  background: var(--primary-light);
  display: inline-flex; align-items: center; gap: 4px;
  white-space: nowrap; flex-shrink: 0;
  transition: transform 0.15s;
}

.mobile-web-mode .btn-start:active { transform: scale(0.95); }

/* 分类图标卡片 */
.mobile-web-mode .cate-card .card-body { text-align: center; padding: 16px 10px; }

.mobile-web-mode .cate-icon {
  width: 48px; height: 48px; border-radius: 14px; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; margin: 0 auto 8px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.12);
}

.mobile-web-mode .cate-name {
  font-size: 13px; font-weight: 600; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.mobile-web-mode .cate-count { font-size: 11px; color: var(--text-muted); }

/* 公告 */
.mobile-web-mode .notice-card { padding: 0; }

.mobile-web-mode .notice-item {
  display: flex; align-items: center;
  padding: 12px 16px; border-bottom: 0.5px solid var(--border);
}

.mobile-web-mode .notice-item:last-child { border-bottom: none; }

.mobile-web-mode .notice-badge {
  display: inline-block; padding: 3px 8px;
  border-radius: 6px; font-size: 11px; font-weight: 600;
  margin-right: 10px; flex-shrink: 0;
}

.mobile-web-mode .badge-new { background: rgba(255,77,79,0.08); color: var(--danger); }
.mobile-web-mode .badge-info { background: var(--primary-light); color: var(--primary); }

.mobile-web-mode .notice-title {
  flex: 1; font-size: 14px; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.mobile-web-mode .notice-date { font-size: 12px; color: var(--text-muted); margin-left: 10px; flex-shrink: 0; }

/* ========== 筛选栏 ========== */
.mobile-web-mode .filter-bar {
  overflow-x: auto; white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  padding: 10px 16px; gap: 8px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  position: sticky; top: var(--topbar-height); z-index: 50;
  border-bottom: 0.5px solid var(--border);
  scrollbar-width: none;
}

.mobile-web-mode .filter-bar::-webkit-scrollbar { display: none; }
.mobile-web-mode .filter-group { display: inline-block; vertical-align: top; }
.mobile-web-mode .filter-options { display: inline-flex; flex-wrap: nowrap; gap: 6px; }
.mobile-web-mode .filter-label { font-size: 13px; color: #666; margin-right: 6px; line-height: 32px; }

.mobile-web-mode .filter-btn {
  padding: 7px 16px; border-radius: 20px;
  font-size: 13px; font-weight: 500;
  border: 1px solid #e8e8e8; background: #fff; color: #666;
  white-space: nowrap; flex-shrink: 0;
  transition: all 0.2s; cursor: pointer;
}

.mobile-web-mode .filter-btn.active {
  background: var(--primary); color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(74,144,217,0.25);
}

.mobile-web-mode .filter-btn:active { transform: scale(0.96); }

/* ========== 详情页 ========== */
.mobile-web-mode .detail-header {
  padding: 24px 16px 20px;
  background: linear-gradient(135deg, #f0f4ff, #e8eeff);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.mobile-web-mode .detail-title { font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--text); }
.mobile-web-mode .detail-meta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; }
.mobile-web-mode .detail-meta .meta-item { font-size: 12px; color: #888; display: flex; align-items: center; gap: 4px; }
.mobile-web-mode .detail-actions { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; }

.mobile-web-mode .btn-exam-start {
  border-radius: 24px; padding: 12px 32px;
  font-size: 15px; font-weight: 600;
  border: none; color: #fff; background: var(--primary);
  box-shadow: 0 4px 16px rgba(74,144,217,0.3);
  transition: transform 0.15s;
}

.mobile-web-mode .btn-exam-start:active { transform: scale(0.97); }
.mobile-web-mode .btn-exam-start:hover, .mobile-web-mode .btn-exam-start:focus { background: var(--primary-dark); color: #fff; }

/* ========== 成绩卡片 ========== */
.mobile-web-mode .grade-card {
  display: flex; flex-direction: column;
  border-radius: var(--radius); padding: 16px;
  box-shadow: var(--shadow); background: var(--bg-card); margin-bottom: 10px;
}

.mobile-web-mode .grade-score .score-num { font-size: 28px; font-weight: 700; }
.mobile-web-mode .grade-score.pass .score-num { color: var(--success); }
.mobile-web-mode .grade-score.fail .score-num { color: var(--danger); }
.mobile-web-mode .grade-info { margin-top: 8px; }
.mobile-web-mode .grade-title { font-size: 14px; font-weight: 600; color: var(--text); }
.mobile-web-mode .grade-meta { font-size: 12px; color: var(--text-muted); margin-top: 4px; display: flex; flex-wrap: wrap; gap: 12px; }
.mobile-web-mode .grade-action { margin-top: 10px; }
.mobile-web-mode .grade-action .btn-detail { border-radius: 20px; padding: 6px 18px; font-size: 13px; }

/* ========== 排行榜 ========== */
.mobile-web-mode .rank-list { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.mobile-web-mode .rank-item { display: flex; align-items: center; padding: 12px 16px; border-bottom: 0.5px solid var(--border); }
.mobile-web-mode .rank-item:last-child { border-bottom: none; }
.mobile-web-mode .rank-index { width: 32px; font-size: 14px; font-weight: 700; color: var(--text-muted); text-align: center; flex-shrink: 0; }
.mobile-web-mode .rank-index.top-1 { color: #FFD700; }
.mobile-web-mode .rank-index.top-2 { color: #C0C0C0; }
.mobile-web-mode .rank-index.top-3 { color: #CD7F32; }
.mobile-web-mode .rank-user { flex: 1; margin-left: 10px; }
.mobile-web-mode .rank-user .name { font-size: 14px; font-weight: 500; color: var(--text); }
.mobile-web-mode .rank-user .time { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.mobile-web-mode .rank-score { font-size: 15px; font-weight: 600; color: var(--primary); flex-shrink: 0; }

/* ========== 考试做题页面 ========== */
/* 顶栏 */
.mobile-web-mode .exam-topbar {
  position: fixed !important;
  top: var(--topbar-height) !important;
  left: 0; right: 0;
  z-index: 99;
  padding: 8px 12px !important;
  background: rgba(255,255,255,0.95) !important;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 0.5px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04) !important;
}

.mobile-web-mode .exam-topbar > div > div:first-child { display: none !important; }

.mobile-web-mode .exam-topbar > div > div:last-child {
  display: flex !important; align-items: center;
  justify-content: space-between; width: 100%; gap: 12px;
}

.mobile-web-mode .exam-topbar .timer-display,
.mobile-web-mode #examTimer {
  font-size: 18px !important; font-weight: 700 !important;
  font-family: "SF Mono", "Menlo", monospace !important;
  color: var(--primary) !important;
  background: var(--primary-light);
  padding: 6px 14px; border-radius: 10px;
  letter-spacing: 1px;
}

.mobile-web-mode .exam-topbar .btn-submit-exam,
.mobile-web-mode .btn-submit-exam {
  padding: 8px 20px !important; font-size: 14px !important;
  font-weight: 600 !important; border: none !important;
  border-radius: 20px !important;
  background: linear-gradient(135deg, var(--primary), #5a7ddb) !important;
  color: #fff !important;
  box-shadow: 0 2px 10px rgba(74,144,217,0.3);
  transition: transform 0.15s; cursor: pointer;
  display: inline-flex !important; align-items: center; gap: 6px;
}

.mobile-web-mode .exam-topbar .btn-submit-exam:active,
.mobile-web-mode .btn-submit-exam:active { transform: scale(0.96); }

/* 考试内容区 */
.mobile-web-mode .exam-container {
  padding-top: calc(var(--topbar-height) + 56px) !important;
  padding-bottom: 80px;
}

.mobile-web-mode .exam-main { padding: 0 12px; }

/* 题目 */
.mobile-web-mode .question-area {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 16px; margin: 0; box-shadow: var(--shadow);
}

.mobile-web-mode .question-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: 13px; font-weight: 700; margin-right: 8px;
}

.mobile-web-mode .question-type {
  display: inline-block; padding: 2px 10px; border-radius: 6px;
  font-size: 12px; font-weight: 600;
  background: var(--primary-light); color: var(--primary); margin-right: 6px;
}

.mobile-web-mode .question-title {
  font-size: 16px; font-weight: 500; line-height: 1.7;
  color: var(--text); margin: 14px 0;
}

/* 选项 */
.mobile-web-mode .options-list { list-style: none; padding: 0; margin: 0; }

.mobile-web-mode .option-item {
  display: flex; align-items: flex-start;
  padding: 12px 14px; margin-bottom: 8px;
  border: 1.5px solid #e8e8e8; border-radius: 12px;
  transition: all 0.2s; cursor: pointer;
}

.mobile-web-mode .option-item:active { background: #f0f7ff; border-color: var(--primary); }

.mobile-web-mode .option-item.selected {
  border-color: var(--primary); background: rgba(74,144,217,0.05);
  box-shadow: 0 0 0 2px rgba(74,144,217,0.15);
}

.mobile-web-mode .option-letter {
  width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: #f0f0f0; font-size: 13px; font-weight: 700;
  margin-right: 12px; flex-shrink: 0; color: #666; transition: all 0.2s;
}

.mobile-web-mode .option-item.selected .option-letter { background: var(--primary); color: #fff; }
.mobile-web-mode .option-text { flex: 1; font-size: 14px; line-height: 1.6; padding-top: 3px; }

/* 判断题 */
.mobile-web-mode .judge-options { display: flex; gap: 12px; margin-top: 12px; }

.mobile-web-mode .judge-btn {
  flex: 1; display: flex; align-items: center; justify-content: center;
  padding: 14px; border: 1.5px solid #e8e8e8; border-radius: 12px;
  font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s;
}

.mobile-web-mode .judge-btn:active { transform: scale(0.97); }
.mobile-web-mode .judge-btn.selected { border-color: var(--primary); background: rgba(74,144,217,0.05); box-shadow: 0 0 0 2px rgba(74,144,217,0.15); }

/* 输入框 */
.mobile-web-mode .answer-input {
  width: 100%; padding: 12px 14px;
  border: 1.5px solid #e8e8e8; border-radius: 12px;
  font-size: 15px; line-height: 1.6; resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s; -webkit-appearance: none;
}

.mobile-web-mode .answer-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light); outline: none;
}

/* 导航按钮 */
.mobile-web-mode .btn-nav-prev,
.mobile-web-mode .btn-nav-next {
  min-height: 40px; padding: 8px 20px;
  border-radius: 10px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: transform 0.15s;
}

.mobile-web-mode .btn-nav-prev:active,
.mobile-web-mode .btn-nav-next:active { transform: scale(0.96); }

.mobile-web-mode .btn-nav-prev { border: 1px solid #e0e0e0; background: #fff; color: #666; }
.mobile-web-mode .btn-nav-next { border: none; background: var(--primary); color: #fff; }

/* 操作按钮 */
.mobile-web-mode .btn-action {
  min-width: 40px; min-height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px; border: none; background: #f5f5f5;
  cursor: pointer; transition: all 0.15s; font-size: 15px; color: #999;
}

.mobile-web-mode .btn-action:active { transform: scale(0.92); }

/* 考试侧边栏 */
.mobile-web-mode .exam-sidebar {
  position: fixed; bottom: 0; left: 0; right: 0;
  max-height: 55vh;
  transform: translateY(calc(100% - 48px));
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
  z-index: 100;
  border-radius: 16px 16px 0 0; background: #fff;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.12);
  overflow-y: auto; padding-bottom: env(safe-area-inset-bottom);
}

.mobile-web-mode .exam-sidebar::before {
  content: ''; display: block;
  width: 36px; height: 4px;
  background: #ddd; border-radius: 2px;
  margin: 10px auto 6px; flex-shrink: 0;
}

.mobile-web-mode .exam-sidebar.expanded { transform: translateY(0); }

/* 计时面板 */
.mobile-web-mode .timer-panel { text-align: center; padding: 12px 16px; border-bottom: 0.5px solid var(--border); }
.mobile-web-mode .timer-panel .timer-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.mobile-web-mode .timer-panel .timer-display,
.mobile-web-mode #timerPanel { font-size: 24px; font-weight: 700; font-family: "SF Mono", "Menlo", monospace; color: var(--primary); letter-spacing: 1px; }

/* 答题卡 */
.mobile-web-mode .answer-sheet { padding: 12px 16px; }
.mobile-web-mode .sheet-title { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 10px; }
.mobile-web-mode .legend { display: flex; gap: 16px; margin-bottom: 12px; }
.mobile-web-mode .legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); }
.mobile-web-mode .legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.mobile-web-mode .dot-unanswered { background: #e8e8e8; }
.mobile-web-mode .dot-answered { background: var(--success); }
.mobile-web-mode .dot-current { background: var(--primary); }

.mobile-web-mode .question-nav-bar {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(36px, 1fr)); gap: 8px;
}

.mobile-web-mode .q-nav-item {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; font-size: 13px; font-weight: 600;
  background: #f0f0f0; color: #666; cursor: pointer; transition: all 0.2s;
}

.mobile-web-mode .q-nav-item.current { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(74,144,217,0.3); }
.mobile-web-mode .q-nav-item.answered { background: var(--success); color: #fff; }
.mobile-web-mode .q-nav-item:active { transform: scale(0.92); }

.mobile-web-mode .exam-sidebar .btn-submit-exam {
  display: flex !important; width: calc(100% - 32px);
  margin: 12px 16px; padding: 12px !important;
  justify-content: center; border-radius: 12px !important; font-size: 15px !important;
}

/* ========== 结果页 ========== */
.mobile-web-mode .result-summary { padding: 32px 16px; text-align: center; }
.mobile-web-mode .result-score .score-num { font-size: 52px; font-weight: 800; color: var(--primary); }
.mobile-web-mode .result-status { display: inline-block; padding: 5px 20px; border-radius: 20px; font-size: 14px; font-weight: 600; margin-top: 8px; }
.mobile-web-mode .result-status.pass { background: rgba(40,167,69,0.1); color: var(--success); }
.mobile-web-mode .result-status.fail { background: rgba(220,53,69,0.1); color: var(--danger); }
.mobile-web-mode .result-stats { display: flex; justify-content: center; gap: 20px; margin-top: 20px; }
.mobile-web-mode .result-stats .stat-item { text-align: center; }
.mobile-web-mode .result-stats .stat-num { font-size: 22px; font-weight: 700; color: var(--text); }
.mobile-web-mode .result-stats .stat-label { font-size: 12px; color: var(--text-muted); }

/* 结果页操作按钮 - 2x2 网格 */
.mobile-web-mode .result-actions {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 12px !important;
  padding: 0 16px !important;
  margin-bottom: 24px !important;
  text-align: center !important;
}
.mobile-web-mode .result-actions .btn-exam-start {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  padding: 14px 0 !important;
  margin: 0 !important;
  border-radius: var(--radius) !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
  transition: transform 0.15s !important;
}
.mobile-web-mode .result-actions .btn-exam-start:active { transform: scale(0.96) !important; }
.mobile-web-mode .result-actions .btn-exam-start i { margin-right: 6px; font-size: 15px; }

/* ========== 我的页面（独立模板） ========== */
.mine-page {
  padding-bottom: 20px;
  background: var(--bg, #f5f5f5);
  min-height: 100vh;
}

/* 用户卡片 */
.mine-hero {
  margin: 0; border-radius: 0 0 28px 28px;
  overflow: hidden; position: relative;
  background: #fff; box-shadow: 0 8px 32px rgba(74,144,217,0.2);
  padding-bottom: 8px;
}

.mine-hero-bg {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, var(--primary) 0%, #5a7ddb 50%, #8b5cf6 100%);
}

.mine-hero-bg::after {
  content: ''; position: absolute;
  top: -60px; right: -40px; width: 200px; height: 200px;
  border-radius: 50%; background: rgba(255,255,255,0.08);
}

.mine-hero-bg::before {
  content: ''; position: absolute;
  bottom: -30px; left: -30px; width: 120px; height: 120px;
  border-radius: 50%; background: rgba(255,255,255,0.05);
}

.mine-user-row {
  display: flex; align-items: center;
  padding: 28px 20px 12px; position: relative; z-index: 1;
}

.mine-avatar {
  width: 72px; height: 72px; flex-shrink: 0;
  border-radius: 50%; overflow: hidden;
  border: 3px solid rgba(255,255,255,0.5);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

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

.mine-user-info { flex: 1; margin-left: 16px; }

.mine-nickname {
  font-size: 22px; font-weight: 700; color: #fff;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  text-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.mine-badge {
  display: inline-block; margin-top: 8px;
  padding: 3px 12px; border-radius: 12px;
  font-size: 12px; font-weight: 500;
  background: rgba(255,255,255,0.2); color: #fff;
  backdrop-filter: blur(8px);
}

.mine-badge-vip {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
}

.mine-edit-btn {
  width: 38px; height: 38px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: rgba(255,255,255,0.2);
  color: #fff; font-size: 15px; text-decoration: none;
  transition: background 0.15s;
  backdrop-filter: blur(8px);
}

.mine-edit-btn:active { background: rgba(255,255,255,0.35); }

/* 统计数据 */
.mine-stats-row {
  display: flex; align-items: center;
  margin: 12px 16px 0; padding: 16px 8px;
  position: relative; z-index: 1;
  background: rgba(255,255,255,0.15);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}

.mine-stat-item {
  flex: 1; text-align: center; text-decoration: none;
  display: block;
}

.mine-stat-num {
  font-size: 24px; font-weight: 700; color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.mine-stat-label {
  font-size: 12px; color: rgba(255,255,255,0.8); margin-top: 3px;
}

.mine-stat-divider {
  width: 1px; height: 30px; background: rgba(255,255,255,0.2); flex-shrink: 0;
}

/* Section */
.mine-section {
  margin: 16px 16px 0;
  background: #fff; border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06); overflow: hidden;
}

.mine-section:first-of-type { margin-top: 20px; }

.mine-section-title {
  font-size: 15px; font-weight: 600; color: var(--text);
  padding: 18px 18px 10px;
}

/* 宫格菜单 */
.mine-menu-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 4px 8px 18px;
}

.mine-grid-item {
  display: flex; flex-direction: column; align-items: center;
  padding: 12px 4px; text-decoration: none; color: var(--text);
  border-radius: 14px; transition: background 0.15s;
}

.mine-grid-item:active { background: #f5f5f5; }

.mine-grid-icon {
  width: 50px; height: 50px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  margin-bottom: 10px;
}

.mine-grid-item span {
  font-size: 12px; font-weight: 500; color: var(--text-secondary, #666);
  text-align: center; line-height: 1.3;
}

/* 列表菜单 */
.mine-menu-list { padding: 0 18px 6px; }

.mine-list-item {
  display: flex; align-items: center;
  padding: 15px 0; text-decoration: none; color: var(--text);
  border-bottom: 0.5px solid var(--border, rgba(0,0,0,0.06));
}

.mine-list-item:last-child { border-bottom: none; }
.mine-list-item:active { opacity: 0.7; }

.mine-list-icon {
  width: 34px; font-size: 18px; text-align: center; flex-shrink: 0;
}

.mine-list-item span {
  flex: 1; font-size: 15px; font-weight: 500; margin-left: 10px;
}

.mine-list-arrow {
  color: #ccc; font-size: 14px; flex-shrink: 0;
}

/* ========== 用户中心（旧版兼容） ========== */
.mobile-web-mode .sidenav,
.mobile-web-mode .sidebar-toggle { display: none !important; }
.mobile-web-mode .panel { border: none !important; border-radius: var(--radius) !important; box-shadow: var(--shadow) !important; margin: 12px !important; overflow: hidden; }
.mobile-web-mode .panel-body { padding: 0 !important; }
.mobile-web-mode .page-header { font-size: 18px !important; font-weight: 700 !important; border-bottom: none !important; margin: 0 !important; padding: 20px 16px 0 !important; display: flex; align-items: center; justify-content: space-between; }
.mobile-web-mode .page-header .pull-right { float: none !important; margin: 0 !important; font-size: 13px !important; padding: 6px 14px !important; }
.mobile-web-mode .user-baseinfo { display: flex; flex-wrap: wrap; align-items: center; padding: 20px 16px !important; text-align: left; }
.mobile-web-mode .user-baseinfo > .col-md-3, .mobile-web-mode .user-baseinfo > .col-sm-3, .mobile-web-mode .user-baseinfo > .col-xs-3 { float: none !important; width: auto !important; flex-shrink: 0; }
.mobile-web-mode .user-baseinfo > .col-md-9, .mobile-web-mode .user-baseinfo > .col-sm-9, .mobile-web-mode .user-baseinfo > .col-xs-9 { float: none !important; width: auto !important; flex: 1; }
.mobile-web-mode .user-baseinfo > .col-xs-12 { float: none !important; width: 100% !important; flex-basis: 100%; }
.mobile-web-mode .avatar-img img { width: 64px; height: 64px; border-radius: 50%; box-shadow: 0 4px 12px rgba(0,0,0,0.1); object-fit: cover; }
.mobile-web-mode .ui-content h4 { font-size: 18px !important; font-weight: 700; margin: 0 0 4px !important; }
.mobile-web-mode .ui-content h4 a { color: var(--text); text-decoration: none; }
.mobile-web-mode .ui-content .text-muted { font-size: 13px; color: var(--text-muted); margin: 0; }
.mobile-web-mode .basicinfo { margin: 16px 0 0 !important; padding: 0 !important; border-top: 1px solid var(--border); }
.mobile-web-mode .basicinfo .row { display: flex; flex-wrap: wrap; border-bottom: 0.5px solid var(--border); }
.mobile-web-mode .basicinfo .row:last-child { border-bottom: none; }
.mobile-web-mode .basicinfo .row > div { padding: 12px 0 !important; font-size: 14px; line-height: 1.5; }
.mobile-web-mode .basicinfo .row > .col-xs-4, .mobile-web-mode .basicinfo .row > .col-md-2 { float: none !important; width: 35% !important; color: var(--text-muted); font-size: 13px !important; padding-right: 8px !important; }
.mobile-web-mode .basicinfo .row > .col-xs-8, .mobile-web-mode .basicinfo .row > .col-md-4 { float: none !important; width: 65% !important; color: var(--text); font-weight: 500; word-break: break-all; }
.mobile-web-mode .basicinfo .row > .col-xs-8 a, .mobile-web-mode .basicinfo .row > .col-md-4 a { color: var(--primary); text-decoration: none; }

/* ========== SPA通用组件 ========== */
.m-page { padding: 0 0 16px; min-height: calc(100vh - var(--topbar-height) - var(--tabbar-height)); }
.m-empty { text-align: center; padding: 60px 24px; color: var(--text-muted); }
.m-empty i { font-size: 48px; margin-bottom: 12px; color: #e0e0e0; }
.m-empty p { font-size: 14px; }
.m-loading { display: inline-block; width: 32px; height: 32px; border: 3px solid #f0f0f0; border-top-color: var(--primary); border-radius: 50%; animation: m-spin 0.8s linear infinite; }
@keyframes m-spin { to { transform: rotate(360deg); } }

/* ========== 表单卡片组件 ========== */
.profile-page { padding: 12px; }

.m-card {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}

.m-card-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; cursor: pointer;
}

.m-card-row span { font-size: 14px; color: var(--text); }

.m-form-group {
  padding: 0 16px;
  border-bottom: 0.5px solid var(--border);
}

.m-form-group:last-child { border-bottom: none; }

.m-form-group label {
  display: block; font-size: 13px; font-weight: 500;
  color: var(--text-secondary); padding: 14px 0 6px;
}

.m-input {
  width: 100%; border: none; outline: none;
  font-size: 15px; color: var(--text);
  padding: 0 0 14px; background: transparent;
  -webkit-appearance: none;
}

.m-input::placeholder { color: #ccc; }

textarea.m-input { padding-bottom: 14px; line-height: 1.5; }

.m-btn-primary {
  display: block; width: 100%; height: 44px;
  border: none; border-radius: 12px;
  background: var(--primary); color: #fff;
  font-size: 16px; font-weight: 600;
  cursor: pointer; transition: opacity 0.15s;
}

.m-btn-primary:active { opacity: 0.85; }

/* ========== 登录/注册 ========== */
.mobile-web-mode .login-section,
.mobile-web-mode .user-section { padding: 24px 16px; }

.mobile-web-mode .logon-tab { display: flex; border-bottom: 1px solid #eee; margin-bottom: 24px; }
.mobile-web-mode .logon-tab a {
  flex: 1; padding: 14px; text-align: center;
  font-size: 16px; font-weight: 600; color: var(--text-muted);
  border-bottom: 2px solid transparent; transition: all 0.2s;
}
.mobile-web-mode .logon-tab a.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ========== 空状态 ========== */
.mobile-web-mode .empty-state { padding: 64px 24px; text-align: center; }
.mobile-web-mode .empty-state i { font-size: 56px; color: #e0e0e0; margin-bottom: 16px; display: block; }
.mobile-web-mode .empty-state p { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; line-height: 1.6; }

/* ========== Toast ========== */
.m-toast {
  position: fixed; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 300; background: rgba(0,0,0,0.78);
  color: #fff; padding: 12px 24px;
  border-radius: 24px; font-size: 14px; font-weight: 500;
  max-width: 70%; text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

/* ========== 其他 ========== */
.mobile-web-mode .content { padding: 0; }
.mobile-web-mode .price { color: var(--danger); font-weight: 600; }
.mobile-web-mode .rich-content img { max-width: 100%; border-radius: 8px; }
.mobile-web-mode .rich-content table { width: 100%; overflow-x: auto; display: block; }
.mobile-web-mode .rich-content video { max-width: 100%; border-radius: 8px; }

.mobile-web-mode .plan-card {
  border-radius: var(--radius); background: var(--bg-card);
  padding: 16px; box-shadow: var(--shadow); margin-bottom: 12px;
  border: 2px solid transparent; transition: border-color 0.2s;
}

.mobile-web-mode .plan-card.selected { border-color: var(--primary); box-shadow: 0 2px 12px rgba(74,144,217,0.2); }

/* ================================================================
   UniApp 小程序风格增强 (PC复用视图)
   ================================================================ */

/* Hero 区域统一增强 */
.mobile-web-mode .exam-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #5B6ABF 40%, #764ba2 100%) !important;
}
.mobile-web-mode .exam-hero::after {
  content: ''; position: absolute;
  bottom: -60px; left: -30px;
  width: 180px; height: 180px; border-radius: 50%;
  background: rgba(255,255,255,0.04); pointer-events: none;
}

/* 卡片统一圆角和阴影 */
.mobile-web-mode .exam-card,
.mobile-web-mode .paper-card,
.mobile-web-mode .cate-card,
.mobile-web-mode .news-card,
.mobile-web-mode .grade-card,
.mobile-web-mode .rank-list {
  border-radius: 14px !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06) !important;
  border: 1px solid rgba(0,0,0,0.04);
}

/* 列表项 hover 效果 */
.mobile-web-mode .rank-item,
.mobile-web-mode .notice-item {
  transition: background 0.15s;
}
.mobile-web-mode .rank-item:active,
.mobile-web-mode .notice-item:active {
  background: rgba(0,0,0,0.02);
}

/* 筛选栏增强 */
.mobile-web-mode .filter-bar {
  background: rgba(255,255,255,0.95) !important;
  backdrop-filter: saturate(180%) blur(20px) !important;
  -webkit-backdrop-filter: saturate(180%) blur(20px) !important;
}

/* 详情页增强 */
.mobile-web-mode .detail-header {
  background: linear-gradient(135deg, var(--primary) 0%, #5B6ABF 40%, #764ba2 100%) !important;
  color: #fff;
  border-radius: 0 0 20px 20px !important;
  position: relative; overflow: hidden;
}
.mobile-web-mode .detail-header::before {
  content: ''; position: absolute;
  top: -40px; right: -30px;
  width: 150px; height: 150px; border-radius: 50%;
  background: rgba(255,255,255,0.06); pointer-events: none;
}
.mobile-web-mode .detail-title { color: #fff !important; }
.mobile-web-mode .detail-meta .meta-item { color: rgba(255,255,255,0.8) !important; }
.mobile-web-mode .detail-meta .meta-item i { color: rgba(255,255,255,0.9) !important; }

/* 按钮增强 */
.mobile-web-mode .btn-exam-start {
  background: linear-gradient(135deg, var(--primary), #5a7ddb) !important;
  box-shadow: 0 4px 16px rgba(74,144,217,0.3) !important;
}

/* 练习页面工具栏增强 */
.mobile-web-mode .practice-toolbar {
  background: rgba(255,255,255,0.95) !important;
  backdrop-filter: saturate(180%) blur(20px) !important;
  -webkit-backdrop-filter: saturate(180%) blur(20px) !important;
  border-radius: 14px !important;
  margin: 10px 12px !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06) !important;
}

/* 练习模式切换按钮增强 */
.mobile-web-mode .mode-tab {
  border-radius: 20px !important;
  padding: 6px 16px !important;
  font-size: 13px !important;
  transition: all 0.2s !important;
}
.mobile-web-mode .mode-tab.active {
  background: linear-gradient(135deg, var(--primary), #5a7ddb) !important;
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(74,144,217,0.25) !important;
}

/* 题目区域增强 */
.mobile-web-mode .practice-question,
.mobile-web-mode .question-area {
  border-radius: 14px !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06) !important;
  border: 1px solid rgba(0,0,0,0.04) !important;
}

/* 答案解析增强 */
.mobile-web-mode .answer-analysis {
  background: linear-gradient(135deg, #f0f9ff, #e8f4fd);
  border-radius: 12px !important;
  border: 1px solid rgba(74,144,217,0.1) !important;
  padding: 14px 16px !important;
}

/* 登录页增强 */
.mobile-web-mode .login-section,
.mobile-web-mode .user-section {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary) 30%, var(--bg) 30%);
  min-height: 100vh;
}

/* 课程/知识库卡片增强 */
.mobile-web-mode .news-card .card-body,
.mobile-web-mode .ziliao-card .card-body {
  padding: 14px 16px !important;
}

/* 支付区域增强 */
.mobile-web-mode .pay-section {
  background: #fff; border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  margin: 10px 12px; padding: 16px;
}

/* 成绩详情增强 */
.mobile-web-mode .grade-card {
  border-left: 4px solid var(--primary);
}
.mobile-web-mode .grade-card .grade-score.pass {
  border-left-color: var(--success);
}
.mobile-web-mode .grade-card .grade-score.fail {
  border-left-color: var(--danger);
}

/* 排行榜前三名高亮 */
.mobile-web-mode .rank-item.top-1 {
  background: linear-gradient(90deg, rgba(255,215,0,0.08), transparent);
}
.mobile-web-mode .rank-item.top-2 {
  background: linear-gradient(90deg, rgba(192,192,192,0.08), transparent);
}
.mobile-web-mode .rank-item.top-3 {
  background: linear-gradient(90deg, rgba(205,127,50,0.08), transparent);
}

/* 分页增强 */
.mobile-web-mode .pagination > .active > a {
  background: linear-gradient(135deg, var(--primary), #5a7ddb) !important;
  border-color: transparent !important;
  box-shadow: 0 2px 8px rgba(74,144,217,0.3);
}

/* 空状态增强 */
.mobile-web-mode .empty-state {
  background: #fff; border-radius: 14px;
  margin: 16px 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.mobile-web-mode .empty-state i {
  color: rgba(74,144,217,0.15) !important;
}

/* ========== 桌面端恢复 ========== */
@media (min-width: 768px) {
  .hero-menu-btn { display: none !important; }
  .page-home .exam-hero { padding-top: 28px !important; }
  .mobile-web-mode .navbar-exam { display: block !important; }
  .mobile-web-mode .exam-footer { display: block !important; }
  .mobile-web-mode .navbar { display: block !important; }
  .mobile-web-mode .m-topbar { display: none !important; }
  .mobile-web-mode .m-bottom-tabbar { display: none !important; }
  .mobile-web-mode .m-sidebar-mask { display: none !important; }
  .mobile-web-mode .m-sidebar { display: none !important; }

  .mobile-web-mode .exam-content { padding-top: 0 !important; padding-bottom: 0 !important; }

  .mobile-web-mode .row > .col-md-3 { width: 25% !important; }
  .mobile-web-mode .row > .col-md-4 { width: 33.333% !important; }
  .mobile-web-mode .row > .col-md-5 { width: 41.667% !important; }
  .mobile-web-mode .row > .col-md-6 { width: 50% !important; }
  .mobile-web-mode .row > .col-md-7 { width: 58.333% !important; }
  .mobile-web-mode .row > .col-md-8 { width: 66.667% !important; }
  .mobile-web-mode .row > .col-sm-4 { width: 33.333% !important; }
  .mobile-web-mode .row > .col-sm-6 { width: 50% !important; }

  .mobile-web-mode .hidden-xs { display: none !important; }
  .mobile-web-mode .hidden-sm { display: none !important; }

  .mobile-web-mode .filter-bar { position: static; backdrop-filter: none; }

  .mobile-web-mode .exam-sidebar {
    position: static; transform: none;
    max-height: none; border-radius: 0; box-shadow: none;
  }
  .mobile-web-mode .exam-sidebar::before { display: none; }

  .mobile-web-mode .detail-header { border-radius: 0; }
  .mobile-web-mode .exam-hero { border-radius: 0; }

  /* 结果页按钮恢复桌面横排 */
  .mobile-web-mode .result-actions {
    display: flex !important;
    grid-template-columns: initial !important;
    justify-content: center !important;
    gap: 10px !important;
    padding: 0 !important;
    margin-bottom: 30px !important;
    text-align: center !important;
  }
  .mobile-web-mode .result-actions .btn-exam-start {
    display: inline-block !important;
    width: auto !important;
    padding: 12px 35px !important;
    margin: 0 !important;
    border-radius: 4px !important;
    font-size: inherit !important;
    font-weight: normal !important;
    box-shadow: none !important;
    transition: none !important;
  }

  .mobile-web-mode .exam-topbar { position: sticky !important; top: 0 !important; }
  .mobile-web-mode .exam-topbar > div > div:first-child { display: block !important; }
  .mobile-web-mode .exam-topbar .timer-display,
  .mobile-web-mode #examTimer { font-size: 24px !important; background: none; padding: 0; border-radius: 0; }
  .mobile-web-mode .exam-container { padding-top: 20px !important; }
  .mobile-web-mode .exam-main { padding: 0; }

  .mobile-web-mode .container { width: auto !important; padding-left: 15px !important; padding-right: 15px !important; }

  /* 桌面端恢复旧版用户中心 */
  .mobile-web-mode .sidenav,
  .mobile-web-mode .sidebar-toggle { display: block !important; }
  .mobile-web-mode .panel { border: 1px solid #ddd !important; border-radius: 4px !important; box-shadow: none !important; margin: 0 !important; }
  .mobile-web-mode .panel-body { padding: 15px !important; }
  .mobile-web-mode .page-header { display: block !important; padding: 0 !important; }
  .mobile-web-mode .page-header .pull-right { float: right !important; }
  .mobile-web-mode .user-baseinfo { display: block !important; padding: 0 !important; text-align: left; }
  .mobile-web-mode .user-baseinfo > .col-md-3 { width: 25% !important; float: left !important; }
  .mobile-web-mode .user-baseinfo > .col-md-9 { width: 75% !important; float: left !important; }
  .mobile-web-mode .basicinfo { display: block !important; padding: 0 !important; border-top: none !important; }
  .mobile-web-mode .basicinfo .row { display: block !important; border-bottom: none !important; }
  .mobile-web-mode .basicinfo .row > .col-md-2 { width: 16.667% !important; float: left !important; }
  .mobile-web-mode .basicinfo .row > .col-md-4 { width: 33.333% !important; float: left !important; }

  /* 桌面端"我的"页面 */
  .mine-hero { max-width: 600px; margin: 16px auto; }
  .mine-section { max-width: 600px; margin: 12px auto; }
  .mine-menu-grid { grid-template-columns: repeat(4, 1fr); }
}