/* 字体：优先本地字体，避免外部 CDN 阻塞渲染 */
/* @note 原 Google Fonts @import 已移除（国内不可用/阻塞渲染），改用系统字体栈 */
/* ==================== 全局样式 · 新能源蓝天门户设计令牌 ==================== */
:root {
  --primary: #2E8BC0; --primary-dark: #1E6AA0; --primary-light: #E8F4FC;
  --success: #27AE60; --success-light: #E8F6EE; --warning: #E67E22; --warning-light: #FEF3E2;
  --danger: #D32F2F; --danger-light: #FDECEC;
  --bg: #EDF5FB;                    /* 浅天蓝底（参考图明亮感） */
  --surface: #FFFFFF;               /* 卡片/面板纯白 */
  --surface-2: #F5FAFD;             /* 次级面（略蓝白） */
  --card-bg: var(--surface);
  --tint-border: #D0E4F0;           /* 浅蓝边框 */
  --text: #1A3A5C;                  /* 深蓝文字 */
  --text-secondary: #5A7A94;        /* 次要文字 */
  --text-muted-2: #7E97AD;          /* 弱化文字 */
  --text-on-surface: #1F2D3D;       /* 面板上文字 */
  --border: #D4E4F0;
  --shadow: 0 1px 3px rgba(26,58,92,0.06), 0 1px 2px rgba(26,58,92,0.04);
  --shadow-md: 0 4px 12px rgba(26,58,92,0.08);
  --shadow-lg: 0 8px 24px rgba(26,58,92,0.10), 0 2px 6px rgba(26,58,92,0.06);
  --radius: 14px; --radius-sm: 10px; --radius-xs: 6px;
  --sky-primary: #2E8BC0; --sky-light: #5BB5E8; --sky-pale: var(--tint-border);
  --ocean-deep: #1A3A5C; --ocean-dark: #0D2B4A;
  --energy-green: #27AE60; --energy-green-light: #52B788;
  --amber-gold: #F59E0B; --amber-light: #FCD34D;
  --wind-blue: #2E8BC0; --wind-teal: #5BB5E8;
  --ceec-blue: #005bac; --ceec-red: #e60012;   /* 企业官方色 */
  --glass-bg: rgba(255,255,255,0.92); --glass-bg-2: rgba(245,250,253,0.88);
  --overlay-light: rgba(255,255,255,0.8);
  --font-display: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-data: 'Rajdhani', 'Noto Sans SC', sans-serif;
  /* 侧栏专用（明亮天蓝，对齐参考图） */
  --sidebar-bg-top: #2E8BC0;        /* 天蓝顶 */
  --sidebar-bg-mid: #2378A3;        /* 中天蓝 */
  --sidebar-bg-btm: #1A5C82;        /* 底天蓝（非深海黑） */
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

/* ====== 可访问性：键盘焦点可见（接管 outline:none 后的焦点指示） ====== */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}
.btn:focus-visible,
.nav-item:focus-visible,
.bottom-nav-item:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(46,139,192,0.18);
}

/* ====== 主题切换平滑过渡（仅作用于主题相关属性） ====== */
body, html,
.app-header, .admin-topbar,
.admin-sidebar, .sidebar-inner,
.admin-main, .main-content,
.card, .stat-card, .data-card,
.bottom-nav, .nav-item,
.btn, .btn-primary, .btn-secondary,
.modal, .modal-overlay,
.exam-option, .cert-card,
.form-input, .form-select, .form-textarea,
.badge, .tag, .progress-bar, .toast,
.admin-table, .data-table, .table-wrapper,
.filter-bar, .search-box,
.login-card, .glass-panel,
.worker-hero, .level-entry, .special-entry,
.theme-toggle {
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              fill 0.35s ease;
}

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==================== 首页 Logo Hero ==================== */
.logo-hero {
  padding: 12px 28px;
  background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(243,248,255,0.85) 100%);
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,91,172,0.10), 0 1px 4px rgba(0,0,0,0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
/* 官方中国能建Logo - 首页 */
.logo-ceec-official {
  width: 400px;
  max-width: 92vw;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
  filter: drop-shadow(0 6px 26px rgba(0,91,172,0.18));
}
@media (max-width: 400px) {
  .logo-ceec-official { width: 300px; }
}

/* APP下载卡片 */
.app-download-card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--tint-border) !important;
  box-shadow: 0 2px 24px rgba(0,91,172,0.08);
}
.qr-wrapper {
  display: inline-block;
  padding: 12px;
  background: var(--surface);
  border-radius: 16px;
  border: 2px dashed var(--tint-border);
}
.app-download-tip {
  font-size: 11px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 500;
}

/* 吸顶操作栏：将提交等按钮固定在页面上部，避免被底部菜单栏遮挡 */
.exam-action-bar {
  position: sticky;
  top: 56px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--surface-2) 100%);
  border: 1px solid var(--tint-border);
  border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(0,91,172,0.10);
}
.exam-action-bar .exam-progress-text {
  font-size: 13px;
  color: var(--ceec-blue);
  font-weight: 600;
}
.exam-action-bar #submit-btn {
  margin-top: 0;
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: 15px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ==================== 通用组件 ==================== */
.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  min-height: 100vh;
  /* 预留底部固定任务栏高度 + 刘海/安全区，避免长页面内容被遮挡、任务栏后不出现网页内容 */
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}

.container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 14px;
  transition: box-shadow 0.2s, transform 0.15s;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
  min-height: 44px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.2s;
}

.btn:active::after { background: rgba(255,255,255,0.15); }

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--surface); box-shadow: 0 2px 8px rgba(46,139,192,0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); box-shadow: 0 4px 14px rgba(46,139,192,0.35); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 3px rgba(46,139,192,0.3); }

.btn-block { width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 13px; min-height: 32px; }
.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
  background: var(--surface);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46,139,192,0.12);
}

input::placeholder, textarea::placeholder { color: var(--text-muted-2); }

input[type="checkbox"], input[type="radio"] {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

label { display: block; font-weight: 500; margin-bottom: 6px; color: var(--text); }

.form-group { margin-bottom: 16px; }

/* ==================== 顶部导航 ==================== */
.app-header {
  background: linear-gradient(135deg, var(--sidebar-bg-top) 0%, var(--sidebar-bg-mid) 50%, var(--sidebar-bg-btm) 100%);
  color: var(--surface);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(13,43,74,0.22);
}

.app-header h1 { font-size: 17px; font-weight: 600; letter-spacing: 0.5px; }
.app-header .back-btn { color: rgba(255,255,255,0.9); font-size: 24px; cursor: pointer; padding: 0 4px; }

/* ==================== 底部导航 ==================== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 480px;
  margin: 0 auto;
  background: var(--surface);
  display: flex;
  border-top: 1px solid var(--border);
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.06);
  padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 7px 4px 5px;
  color: var(--text-muted-2);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
  text-decoration: none;
  position: relative;
}

.bottom-nav-item.active { color: var(--primary); }
.bottom-nav-item.active::before {
  content: '';
  position: absolute;
  top: -1px; left: 20%; right: 20%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--wind-teal));
  border-radius: 0 0 3px 3px;
}
.bottom-nav-item .icon { font-size: 22px; margin-bottom: 2px; transition: transform 0.2s; }
.bottom-nav-item.active .icon { transform: scale(1.1); }
.bottom-nav-item .label { font-size: 11px; font-weight: 500; }

/* ==================== 标签和徽章 ==================== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--primary-light); color: var(--primary); }
.badge-blue { background: var(--primary-light); color: var(--primary); }
.badge-gray { background: var(--surface-2); color: var(--text-secondary); }

/* ==================== 进度条 ==================== */
.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--surface-2);
  border-radius: 5px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--sky-light));
  border-radius: 5px;
  transition: width 0.4s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

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

/* ==================== 空状态 ==================== */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-secondary);
}

.empty-state .icon { font-size: 48px; margin-bottom: 12px; }

/* ==================== 弹窗 ==================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 420px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal h3 { margin-bottom: 12px; }

/* ==================== Toast 提示 ==================== */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: var(--surface);
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 14px;
  z-index: 2000;
  animation: fadeIn 0.3s, fadeOut 0.3s 2.7s;
}

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

/* ==================== 响应式 ==================== */
@media (min-width: 768px) {
  .container { max-width: 600px; }
}

/* ==================== 管理后台专用 ==================== */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--sidebar-bg-top) 0%, var(--sidebar-bg-mid) 50%, var(--sidebar-bg-btm) 100%);
  color: var(--primary-light);
  flex-direction: column;
}

.admin-sidebar .logo {
  padding: 16px 14px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.18);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.08);
}

.admin-main {
  flex: 1;
  margin-left: 240px;
  padding: 24px;
  background: var(--bg);
}

.admin-topbar {
  background: var(--surface);
  padding: 14px 24px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
}

.admin-topbar h2 { font-size: 18px; font-weight: 700; color: var(--text); }

/* 数据卡片 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

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

.stat-card .stat-info { flex: 1; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; line-height: 1.2; color: var(--text); }
.stat-card .stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* 表格 */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.data-table th {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  padding: 13px 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1.5px solid var(--border);
  white-space: nowrap;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  font-size: 11px;
}

.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
}

.data-table tbody tr { transition: background 0.15s; }
.data-table tr:hover { background: var(--surface-2); }
.data-table tr:last-child td { border-bottom: none; }
.data-table thead tr:first-child th:first-child { border-radius: var(--radius) 0 0 0; }
.data-table thead tr:first-child th:last-child { border-radius: 0 var(--radius) 0 0; }

/* 操作按钮组 */
.action-group { display: flex; gap: 6px; }

/* 搜索框 */
.search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-bar input, .search-bar select {
  width: auto;
  min-width: 180px;
}

/* ==================== 级别筛选 Chips（视频管理） ==================== */
.level-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
}

.level-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 16px;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  cursor: pointer;
  transition: all 0.2s;
  min-height: 44px;
  justify-content: center;
}

.level-chip:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.level-chip.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 2px 8px rgba(21,101,192,0.3);
}

.level-chip-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
}

.level-chip.active .level-chip-name {
  color: var(--surface);
}

.level-chip-hours {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.2;
}

.level-chip.active .level-chip-hours {
  color: rgba(255,255,255,0.85);
}

/* 移动端管理界面 */
@media (max-width: 768px) {
  /* 侧边栏改为「常驻折叠栏」：默认只显示图标窄栏，右滑/点汉堡展开完整菜单 */
  .admin-sidebar {
    width: 56px;                 /* 折叠态：仅图标窄栏，常驻可见 */
    transform: none;
    transition: width 0.25s ease;
    box-shadow: 2px 0 12px rgba(0,0,0,0.18);
    z-index: 260;
    overflow-x: hidden;
  }
  /* 展开态：显示完整内容，宽度不超过屏幕横向三分之一 */
  body.sidebar-open .admin-sidebar {
    width: min(230px, 33vw);
    box-shadow: 4px 0 24px rgba(0,0,0,0.28);
  }

  /* 折叠态：隐藏文字/品牌/用户信息，仅留居中图标 */
  .admin-sidebar .logo { padding: 12px 6px 10px; }
  .sidebar-logo-chip { padding: 5px 4px; }
  .sidebar-logo-img { width: 100%; }
  .sidebar-brand,
  .sidebar-user,
  .admin-sidebar .nav-item .text { display: none; }
  .admin-sidebar .nav-item {
    justify-content: center;
    padding: 14px 0;
    gap: 0;
  }
  .admin-sidebar .nav-item:hover { padding-left: 0; }

  /* 展开态：恢复文字与用户信息 */
  body.sidebar-open .admin-sidebar .logo { padding: 14px 12px; }
  body.sidebar-open .sidebar-logo-chip { padding: 8px 10px; }
  body.sidebar-open .sidebar-brand { display: block; font-size: 12px; }
  body.sidebar-open .sidebar-user { display: flex; padding: 10px 14px; }
  body.sidebar-open .admin-sidebar .nav-item {
    justify-content: flex-start;
    padding: 12px 14px;
    gap: 10px;
  }
  body.sidebar-open .admin-sidebar .nav-item .text {
    display: inline;
    font-size: 13px;
    line-height: 1.25;
    white-space: normal;        /* 窄栏内长标题自动换行，不被截断 */
    word-break: break-all;
  }

  /* 主内容区始终给折叠栏留出宽度；展开时菜单以浮层覆盖，内容不跳动 */
  .admin-main { margin-left: 56px; padding: 14px; }
  .admin-topbar { padding: 12px 14px; }

  /* 展开时右侧内容遮罩（不盖住菜单），点击收起 */
  .sidebar-backdrop { left: min(230px, 33vw); }
  body.sidebar-open .sidebar-backdrop { display: block; }

  .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 8px 10px; }
}

/* ==================== 考试页面 ==================== */
.exam-question {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.exam-question .q-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  line-height: 1.5;
}

.exam-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.exam-option:hover { border-color: var(--primary); background: var(--primary-light); }
.exam-option.selected { border-color: var(--primary); background: var(--primary-light); }
.exam-option.correct { border-color: var(--success); background: var(--success-light); }
.exam-option.wrong { border-color: var(--danger); background: var(--danger-light); }

.exam-option .option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.exam-option.selected .option-letter { background: var(--primary); color: var(--surface); }
.exam-option.correct .option-letter { background: var(--success); color: var(--surface); }
.exam-option.wrong .option-letter { background: var(--danger); color: var(--surface); }

/* ==================== 证书样式 ==================== */
.certificate-container {
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-2) 100%);
  border: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.certificate-container::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(26,115,232,0.03) 0%, transparent 70%);
}

/* ==================== 证书样式（简约正式版） ==================== */

.cert-card {
  max-width: 600px;
  margin: 0 auto 24px;
  background: var(--surface);
  border: 1px solid var(--tint-border);
  position: relative;
}

/* 证书外边框装饰 */
.cert-card::before {
  content: '';
  position: absolute;
  top: 6px; left: 6px; right: 6px; bottom: 6px;
  border: 2px solid var(--ocean-deep);
  pointer-events: none;
}

/* 标题区 */
.cert-header {
  text-align: center;
  padding: 36px 24px 20px;
  border-bottom: 1px solid var(--border);
}

.cert-header-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--ocean-deep);
  letter-spacing: 6px;
}

.cert-header-subtitle {
  font-size: 13px;
  color: #666;
  margin-top: 8px;
  letter-spacing: 2px;
}

/* 正文区 */
.cert-body {
  padding: 32px 40px 24px;
}

.cert-body-content {
  text-align: center;
}

/* 信息表格 */
.cert-info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 auto;
  max-width: 440px;
}

.cert-info-table td {
  padding: 8px 12px;
  font-size: 14px;
  border-bottom: 1px solid #eee;
}

.cert-info-table .label {
  color: #888;
  width: 100px;
  text-align: right;
  font-size: 13px;
}

.cert-info-table .value {
  color: var(--ocean-deep);
  font-weight: 600;
  text-align: left;
}

/* 成绩表格 */
.cert-score-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px auto;
  max-width: 440px;
  font-size: 13px;
}

.cert-score-table th {
  background: var(--surface-2);
  color: #555;
  font-weight: 600;
  padding: 10px 8px;
  border: 1px solid #ddd;
  text-align: center;
}

.cert-score-table td {
  padding: 10px 8px;
  border: 1px solid #ddd;
  text-align: center;
  color: var(--text-on-surface);
}

.cert-score-table .score-num {
  font-size: 16px;
  font-weight: 700;
  color: var(--ocean-deep);
}

/* 底部区 */
.cert-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 20px 40px 28px;
}

/* 证书操作按钮：吸底悬浮于底部菜单栏之上，始终可点击，不被遮挡 */
.cert-actions-sticky {
  position: sticky;
  bottom: calc(76px + env(safe-area-inset-bottom));
  z-index: 90;
  display: flex;
  gap: 8px;
  padding: 10px 24px;
  margin-top: 10px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 14px rgba(0,0,0,0.06);
}

.cert-meta {
  font-size: 12px;
  color: #666;
  line-height: 2;
}

.cert-meta .cert-no {
  font-weight: 600;
  color: var(--text-on-surface);
}

/* 印章（公章样式，SVG 渲染） */
.cert-seal {
  width: 112px;
  height: 112px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-seal-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* 证书证明语（成绩上方） */
.cert-statement {
  font-size: 14px;
  color: var(--text-on-surface);
  line-height: 1.8;
  text-align: center;
  margin: 16px auto 4px;
  max-width: 440px;
  font-weight: 500;
}

/* 证书二维码 */
.cert-qr-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
}

.cert-qr {
  width: 90px;
  height: 90px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  display: block;
}

.cert-qr-text {
  font-size: 11px;
  color: #888;
  margin-top: 4px;
}

.cert-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-30deg);
  font-size: 48px;
  font-weight: 900;
  color: rgba(200, 40, 40, 0.08);
  pointer-events: none;
  z-index: 5;
}
  background: var(--surface-2);
  border: 2px dashed var(--text-muted-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  font-size: 32px;
  color: var(--text-muted-2);
}

/* 过期/撤销水印 */
.cert-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%) rotate(-25deg);
  font-size: 56px;
  font-weight: 900;
  color: rgba(234,67,53,0.12);
  border: 6px solid rgba(234,67,53,0.12);
  padding: 12px 32px;
  border-radius: 12px;
  pointer-events: none;
  z-index: 2;
}

/* 人脸识别弹窗样式 */
.face-guide-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 180px;
  height: 220px;
  border: 3px solid rgba(255,255,255,0.7);
  border-radius: 50%;
  pointer-events: none;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.3);
}

/* ==================== 加载动画 ==================== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}

/* ==================== 工具类 ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-secondary); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.hidden { display: none !important; }

/* 专项培训：批量筛选 chip */
.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-chip {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  font-size: 13px;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
  user-select: none;
  transition: all .15s;
}
.filter-chip:hover { border-color: var(--primary); }
.filter-chip.active { background: var(--primary); color: var(--surface); border-color: var(--primary); }

/* 证书二维码设置区域 */
.qr-settings-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 16px;
  overflow: hidden;
}
.qr-settings-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--primary-light) 100%);
  border-bottom: 1px solid var(--border);
  user-select: none;
}
.qr-settings-header strong { font-size: 14px; color: var(--ocean-deep); }
.qr-settings-sub { font-size: 12px; color: #888; }
.qr-toggle-icon { margin-left: auto; color: #aaa; font-size: 12px; }
.qr-settings-body-visible { display: block; }
#qr-options-body {
  padding: 14px 16px 12px;
}
#qr-options-body[style*="display: none"] { display: none !important; }
.qr-section { margin-bottom: 10px; }
.qr-section:last-of-type { margin-bottom: 0; }
.qr-section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.qr-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 6px 10px;
}
.qr-grid-sm { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
.qr-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.qr-chip:hover { background: var(--primary-light); border-color: var(--primary); }
.qr-chip input[type="checkbox"] { accent-color: var(--primary); width: 15px; height: 15px; flex-shrink: 0; }
.qr-chip span { color: var(--text); line-height: 1.3; }
.qr-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}
.qr-msg { font-size: 13px; color: var(--success); font-weight: 500; }

/* 人员附件多文件上传 */
.attach-type-group { margin-bottom: 8px; }
.attach-pdf-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 6px 12px; background: var(--primary-light); color: var(--primary);
  border-radius: 6px; font-size: 12px; text-decoration: none;
  transition: background 0.2s;
}
.attach-pdf-link:hover { background: var(--primary-light); }
.attach-preview-grid { min-height: 30px; }

/* ============================================================
   新能源蓝天门户 — 全系统改版皮肤组件覆盖层
   作用：覆盖原组件类，仅替换配色体系 + FontAwesome + 玻璃质感
   配色来源：附图「中国能建质量管理驾驶舱 + 登录页」
   ============================================================ */




* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 数字统一用数据字体 */
.stat-value, .score-num, .ring-label, .badge, .cert-no { font-family: var(--font-data); }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ==================== 首页 Logo Hero ==================== */
.logo-hero {
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--glass-bg) 0%, var(--glass-bg-2) 100%);
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(46,139,192,0.12), 0 1px 4px rgba(0,0,0,0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.logo-ceec-official {
  width: 400px;
  max-width: 92vw;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
  filter: drop-shadow(0 6px 26px rgba(46,139,192,0.18));
}
@media (max-width: 400px) { .logo-ceec-official { width: 300px; } }

.app-download-card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--tint-border) !important;
  box-shadow: 0 2px 24px rgba(46,139,192,0.10);
}
.qr-wrapper {
  display: inline-block;
  padding: 12px;
  background: var(--surface);
  border-radius: 16px;
  border: 2px dashed var(--tint-border);
}
.app-download-tip {
  font-size: 11px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 500;
}

/* 吸顶操作栏 */
.exam-action-bar {
  position: sticky;
  top: 56px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--surface-2) 100%);
  border: 1px solid #BFE0F5;
  border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(46,139,192,0.10);
}
.exam-action-bar .exam-progress-text { font-size: 13px; color: var(--primary-dark); font-weight: 600; }
.exam-action-bar #submit-btn { margin-top: 0; flex-shrink: 0; padding: 10px 22px; font-size: 15px; }

/* ==================== 通用组件 ==================== */
.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  min-height: 100vh;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}
.container-wide { max-width: 1200px; margin: 0 auto; padding: 20px; }

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 14px;
  border: 1px solid rgba(46,139,192,0.06);
  transition: box-shadow 0.2s, transform 0.15s;
}
.card:hover { box-shadow: var(--shadow-md); }

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
  min-height: 44px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  font-family: var(--font-display);
}
.btn::after { content: ''; position: absolute; inset: 0; background: rgba(255,255,255,0); transition: background 0.2s; }
.btn:active::after { background: rgba(255,255,255,0.15); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--surface); box-shadow: 0 2px 8px rgba(46,139,192,0.30); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); box-shadow: 0 4px 14px rgba(46,139,192,0.35); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 3px rgba(46,139,192,0.3); }
.btn-success { background: linear-gradient(135deg, var(--energy-green), #1E8449); color: var(--surface); box-shadow: 0 2px 8px rgba(39,174,96,0.25); }
.btn-success:hover { box-shadow: 0 4px 14px rgba(39,174,96,0.35); transform: translateY(-1px); }
.btn-danger { background: linear-gradient(135deg, var(--danger), #B91C1C); color: var(--surface); box-shadow: 0 2px 8px rgba(211,47,47,0.25); }
.btn-danger:hover { box-shadow: 0 4px 14px rgba(211,47,47,0.35); }
.btn-outline { background: var(--surface); border: 2px solid var(--border); color: var(--text); box-shadow: none; }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 13px; min-height: 32px; }
.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
  background: var(--surface);
  color: var(--text);
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(46,139,192,0.12); }
input::placeholder, textarea::placeholder { color: var(--text-muted-2); }
input[type="checkbox"], input[type="radio"] { width: 20px; height: 20px; flex-shrink: 0; }
label { display: block; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group { margin-bottom: 16px; }

/* ==================== 顶部导航（天蓝渐变） ==================== */
.app-header {
  background: linear-gradient(135deg, #2E8BC0 0%, #1E6AA0 50%, #164E75 100%);
  color: var(--surface);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(13,43,74,0.22);
}
.app-header h1 { font-size: 17px; font-weight: 600; letter-spacing: 0.5px; }
.app-header .back-btn { color: rgba(255,255,255,0.9); font-size: 24px; cursor: pointer; padding: 0 4px; }

/* ==================== 底部导航 ==================== */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  max-width: 480px;
  margin: 0 auto;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  border-top: 1px solid var(--border);
  z-index: 100;
  box-shadow: 0 -2px 16px rgba(26,58,92,0.08);
  padding-bottom: env(safe-area-inset-bottom);
}
.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 7px 4px 5px;
  color: var(--text-muted-2);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
  text-decoration: none;
  position: relative;
}
.bottom-nav-item.active { color: var(--primary); }
.bottom-nav-item.active::before {
  content: '';
  position: absolute;
  top: -1px; left: 20%; right: 20%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--sky-light));
  border-radius: 0 0 3px 3px;
}
.bottom-nav-item .icon { font-size: 22px; margin-bottom: 2px; transition: transform 0.2s; }
.bottom-nav-item.active .icon { transform: scale(1.1); }
.bottom-nav-item .label { font-size: 11px; font-weight: 500; }

/* ==================== 标签和徽章 ==================== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-success { background: var(--success-light); color: var(--energy-green); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--primary-light); color: var(--primary); }
.badge-blue { background: var(--surface-2); color: var(--primary-dark); }
.badge-gray { background: var(--tint-border); color: var(--text-secondary); }

/* ==================== 进度条 ==================== */
.progress-bar { width: 100%; height: 10px; background: var(--tint-border); border-radius: 5px; overflow: hidden; }
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--sky-light));
  border-radius: 5px;
  transition: width 0.4s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}
.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}
@keyframes shimmer { 0%{transform:translateX(-100%)} 100%{transform:translateX(100%)} }

/* ==================== 空状态 ==================== */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-secondary); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; color: var(--sky-light); }

/* ==================== 弹窗 ==================== */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(13,43,74,0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
}
.modal {
  background: var(--surface); border-radius: var(--radius); padding: 24px;
  max-width: 420px; width: 100%; max-height: 85vh; overflow-y: auto; box-shadow: var(--shadow-lg);
}
.modal h3 { margin-bottom: 12px; }

/* ==================== Toast ==================== */
.toast {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%);
  background: rgba(13,43,74,0.9); color: var(--surface); padding: 10px 24px;
  border-radius: 24px; font-size: 14px; z-index: 2000;
  animation: fadeIn 0.3s, fadeOut 0.3s 2.7s;
  backdrop-filter: blur(8px);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }

/* ==================== 响应式 ==================== */
@media (min-width: 768px) { .container { max-width: 600px; } }

/* ==================== 管理后台专用 ==================== */
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--sidebar-bg-top) 0%, var(--sidebar-bg-mid) 50%, var(--sidebar-bg-btm) 100%);
  color: #E8F4FC;
  padding: 0;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 200;
  overflow-y: auto;
  display: flex; flex-direction: column;
  box-shadow: 2px 0 20px rgba(30,106,160,0.15);
}
.admin-sidebar .logo {
  padding: 16px 14px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.18);
  display: flex; flex-direction: column; align-items: center; gap: 8px; flex-shrink: 0;
  background: rgba(255,255,255,0.08);
}
.sidebar-logo-chip { display: block; width: 100%; background: #FFFFFF; border-radius: 10px; padding: 10px 8px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.sidebar-logo-img { width: 150px; max-width: 100%; height: auto; display: inline-block; }
.sidebar-brand { font-size: 12px; font-weight: 700; color: #FFFFFF; letter-spacing: 1.5px; margin-top: 4px; text-shadow: 0 1px 3px rgba(0,0,0,0.15); }
.sidebar-user { padding: 10px 14px; border-bottom: 1px solid rgba(255,255,255,0.16); display: flex; flex-direction: column; gap: 2px; flex-shrink: 0; }
.sidebar-logout { flex-shrink: 0; border-top: 1px solid rgba(255,255,255,0.16); }

.sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 250; }

.admin-sidebar .nav-item {
  display: flex; align-items: center; gap: 10px; padding: 11px 18px;
  color: #D6EBF8; cursor: pointer; transition: all 0.2s; text-decoration: none;
  font-size: 13px; flex-shrink: 0; border-left: 3px solid transparent;
}
.admin-sidebar .nav-item:hover { background: rgba(255,255,255,0.14); color: #FFFFFF; padding-left: 22px; }
.admin-sidebar .nav-item.active { background: linear-gradient(90deg, rgba(255,255,255,0.22), transparent); color: #FFFFFF; border-left: 3px solid #FCD34D; font-weight: 600; }
.admin-sidebar .nav-item .icon { font-size: 16px; width: 20px; text-align: center; opacity: 0.9; }

.admin-main { flex: 1; margin-left: 240px; padding: 24px; background: var(--bg); }

.admin-topbar {
  background: var(--surface); padding: 14px 24px; border-radius: var(--radius);
  margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center;
  box-shadow: var(--shadow); border: 1px solid rgba(46,139,192,0.06);
}
.admin-topbar h2 { font-size: 18px; font-weight: 700; color: var(--ocean-deep); }

/* 数据卡片 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border-radius: var(--radius); padding: 20px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s; border: 1px solid rgba(46,139,192,0.06);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card .stat-icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0;
}
.stat-card .stat-info { flex: 1; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; line-height: 1.2; color: var(--ocean-deep); }
.stat-card .stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* 表格 */
.data-table {
  width: 100%; border-collapse: separate; border-spacing: 0; background: var(--surface);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.data-table th {
  background: linear-gradient(180deg, var(--surface-2), var(--surface-2));
  padding: 13px 16px; text-align: left; font-size: 11px; font-weight: 600;
  color: var(--primary-dark); border-bottom: 1.5px solid var(--border);
  white-space: nowrap; letter-spacing: 0.3px; text-transform: uppercase;
}
.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--tint-border); font-size: 14px; color: var(--text); }
.data-table tbody tr { transition: background 0.15s; }
.data-table tr:hover { background: var(--surface-2); }
.data-table tr:last-child td { border-bottom: none; }
.data-table thead tr:first-child th:first-child { border-radius: var(--radius) 0 0 0; }
.data-table thead tr:first-child th:last-child { border-radius: 0 var(--radius) 0 0; }

.action-group { display: flex; gap: 6px; }
.search-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.search-bar input, .search-bar select { width: auto; min-width: 180px; }

/* 级别筛选 Chips */
.level-filter-chips { display: flex; flex-wrap: wrap; gap: 8px; width: 100%; }
.level-chip {
  display: inline-flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 16px;
  border: 2px solid var(--border); border-radius: 20px; background: var(--surface); cursor: pointer;
  transition: all 0.2s; min-height: 44px; justify-content: center;
}
.level-chip:hover { border-color: var(--primary); background: var(--primary-light); }
.level-chip.active {
  border-color: var(--primary); background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 2px 8px rgba(46,139,192,0.3);
}
.level-chip-name { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.2; }
.level-chip.active .level-chip-name { color: var(--surface); }
.level-chip-hours { font-size: 11px; color: var(--text-secondary); line-height: 1.2; }
.level-chip.active .level-chip-hours { color: rgba(255,255,255,0.85); }

/* 移动端管理界面 */
@media (max-width: 768px) {
  .admin-sidebar {
    width: 56px; transform: none; transition: width 0.25s ease;
    box-shadow: 2px 0 12px rgba(0,0,0,0.18); z-index: 260; overflow-x: hidden;
  }
  body.sidebar-open .admin-sidebar { width: min(230px, 33vw); box-shadow: 4px 0 24px rgba(0,0,0,0.28); }
  .admin-sidebar .logo { padding: 12px 6px 10px; }
  .sidebar-logo-chip { padding: 5px 4px; }
  .sidebar-logo-img { width: 100%; }
  .sidebar-brand, .sidebar-user, .admin-sidebar .nav-item .text { display: none; }
  .admin-sidebar .nav-item { justify-content: center; padding: 14px 0; gap: 0; }
  .admin-sidebar .nav-item:hover { padding-left: 0; }
  body.sidebar-open .admin-sidebar .logo { padding: 14px 12px; }
  body.sidebar-open .sidebar-logo-chip { padding: 8px 10px; }
  body.sidebar-open .sidebar-brand { display: block; font-size: 12px; }
  body.sidebar-open .sidebar-user { display: flex; padding: 10px 14px; }
  body.sidebar-open .admin-sidebar .nav-item { justify-content: flex-start; padding: 12px 14px; gap: 10px; }
  body.sidebar-open .admin-sidebar .nav-item .text { display: inline; font-size: 13px; line-height: 1.25; white-space: normal; word-break: break-all; }
  .admin-main { margin-left: 56px; padding: 14px; }
  .admin-topbar { padding: 12px 14px; }
  .sidebar-backdrop { left: min(230px, 33vw); }
  body.sidebar-open .sidebar-backdrop { display: block; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 8px 10px; }
}

/* ==================== 考试页面 ==================== */
.exam-question { background: var(--surface); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow); }
.exam-question .q-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; line-height: 1.5; }
.exam-option {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border: 2px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 8px;
  cursor: pointer; transition: all 0.2s;
}
.exam-option:hover { border-color: var(--primary); background: var(--primary-light); }
.exam-option.selected { border-color: var(--primary); background: var(--primary-light); }
.exam-option.correct { border-color: var(--energy-green); background: #E8F6EE; }
.exam-option.wrong { border-color: var(--danger); background: #FDECEC; }
.exam-option .option-letter {
  width: 28px; height: 28px; border-radius: 50%; background: var(--border);
  display: flex; align-items: center; justify-content: center; font-weight: 600; flex-shrink: 0; font-family: var(--font-data);
}
.exam-option.selected .option-letter { background: var(--primary); color: var(--surface); }
.exam-option.correct .option-letter { background: var(--energy-green); color: var(--surface); }
.exam-option.wrong .option-letter { background: var(--danger); color: var(--surface); }

/* ==================== 证书样式 ==================== */
.certificate-container {
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-2) 100%);
  border: 3px solid var(--primary);
  border-radius: var(--radius); padding: 32px 24px; text-align: center; position: relative; overflow: hidden;
}
.certificate-container::before {
  content: ""; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(46,139,192,0.04) 0%, transparent 70%);
}
.cert-card { max-width: 600px; margin: 0 auto 24px; background: var(--surface); border: 1px solid var(--tint-border); position: relative; }
.cert-card::before {
  content: ''; position: absolute; top: 6px; left: 6px; right: 6px; bottom: 6px;
  border: 2px solid var(--primary-dark); pointer-events: none;
}
.cert-header { text-align: center; padding: 36px 24px 20px; border-bottom: 1px solid var(--tint-border); }
.cert-header-title { font-size: 22px; font-weight: 700; color: var(--primary-dark); letter-spacing: 6px; }
.cert-header-subtitle { font-size: 13px; color: var(--text-secondary); margin-top: 8px; letter-spacing: 2px; }
.cert-body { padding: 32px 40px 24px; }
.cert-body-content { text-align: center; }
.cert-info-table { width: 100%; border-collapse: collapse; margin: 0 auto; max-width: 440px; }
.cert-info-table td { padding: 8px 12px; font-size: 14px; border-bottom: 1px solid var(--tint-border); }
.cert-info-table .label { color: var(--text-secondary); width: 100px; text-align: right; font-size: 13px; }
.cert-info-table .value { color: var(--primary-dark); font-weight: 600; text-align: left; }
.cert-score-table { width: 100%; border-collapse: collapse; margin: 20px auto; max-width: 440px; font-size: 13px; }
.cert-score-table th { background: var(--surface-2); color: var(--primary-dark); font-weight: 600; padding: 10px 8px; border: 1px solid var(--tint-border); text-align: center; }
.cert-score-table td { padding: 10px 8px; border: 1px solid var(--tint-border); text-align: center; color: var(--text-on-surface); }
.cert-score-table .score-num { font-size: 16px; font-weight: 700; color: var(--primary-dark); }
.cert-statement { font-size: 14px; color: var(--text-on-surface); text-align: center; max-width: 440px; margin: 16px auto 4px; font-weight: 500; line-height: 1.8; }
.cert-footer { display: flex; justify-content: space-between; align-items: flex-end; padding: 20px 40px 28px; }
.cert-meta { font-size: 12px; color: var(--text-secondary); line-height: 2; }
.cert-meta .cert-no { font-weight: 600; color: #1A3A5C; }
.cert-qr-block { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; flex-shrink: 0; }
.cert-qr { width: 90px; height: 90px; border: 1px solid var(--tint-border); border-radius: 6px; background: var(--surface); display: block; }
.cert-qr-text { font-size: 11px; color: var(--text-muted-2); margin-top: 4px; }
.cert-seal { width: 112px; height: 112px; position: relative; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cert-seal-svg { width: 100%; height: 100%; display: block; }
.cert-actions-sticky {
  position: sticky; bottom: calc(76px + env(safe-area-inset-bottom)); z-index: 90;
  display: flex; gap: 8px; padding: 10px 24px; margin-top: 10px; background: var(--surface);
  border-top: 1px solid var(--border); box-shadow: 0 -4px 14px rgba(0,0,0,0.06);
}
.cert-watermark {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%) rotate(-25deg);
  font-size: 56px; font-weight: 900; color: rgba(211,47,47,0.12);
  border: 6px solid rgba(211,47,47,0.12); padding: 12px 32px; border-radius: 12px; pointer-events: none; z-index: 2;
}

/* 人脸识别弹窗 */
.face-guide-circle {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 180px; height: 220px; border: 3px solid rgba(255,255,255,0.7);
  border-radius: 50%; pointer-events: none; box-shadow: 0 0 0 9999px rgba(0,0,0,0.3);
}

/* ==================== 加载动画 ==================== */
.loading-spinner {
  display: inline-block; width: 20px; height: 20px; border: 3px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--overlay-light);
  display: flex; align-items: center; justify-content: center; z-index: 3000;
}

/* ==================== 工具类 ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-secondary); }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.flex { display: flex; } .flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; }
.hidden { display: none !important; }

/* 专项培训 chip */
.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-chip {
  display: inline-block; padding: 6px 12px; border: 1px solid var(--border);
  border-radius: 16px; font-size: 13px; cursor: pointer; background: var(--surface); color: var(--text);
  user-select: none; transition: all .15s;
}
.filter-chip:hover { border-color: var(--primary); }
.filter-chip.active { background: var(--primary); color: var(--surface); border-color: var(--primary); }

/* 证书二维码设置 */
.qr-settings-card { background: var(--surface); border: 1px solid var(--tint-border); border-radius: 10px; margin-bottom: 16px; overflow: hidden; }
.qr-settings-header {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer;
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-2) 100%);
  border-bottom: 1px solid var(--tint-border); user-select: none;
}
.qr-settings-header strong { font-size: 14px; color: var(--primary-dark); }
.qr-settings-sub { font-size: 12px; color: var(--text-muted-2); }
.qr-toggle-icon { margin-left: auto; color: var(--text-muted-2); font-size: 12px; }

/* FontAwesome 图标在导航/按钮中的统一微调 */
.bottom-nav-item .icon.fas, .bottom-nav-item .icon.fa-solid,
.admin-sidebar .nav-item .icon.fas, .admin-sidebar .nav-item .icon.fa-solid { font-style: normal; }

/* 考试计时环形（桌面端） */
.exam-timer-ring text { font-family: var(--font-data); }

/* ==================== 深色主题 ==================== */
[data-theme="dark"] {
  --bg: #0C1A2A;
  --card-bg: #13283D;
  --surface: #13283D;
  --surface-2: #1B3149;
  --tint-border: #27425C;
  --text: #E6F1FA;
  --text-secondary: var(--text-muted-2);
  --text-muted-2: #7E97AD;
  --text-on-surface: #E6F1FA;
  --border: #27425C;
  --primary-light: #1E3A52;
  --glass-bg: rgba(10,22,38,0.82);
  --glass-bg-2: rgba(20,40,64,0.70);
  --overlay-light: rgba(8,18,30,0.82);
  --shadow: 0 1px 3px rgba(0,0,0,0.45);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.55);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.60);
}
/* 企业 logo 底片始终白底以保证可读性 */
[data-theme="dark"] .sidebar-logo-chip { background: #FFFFFF; }
[data-theme="dark"] .theme-toggle { color: var(--sky-light); }
[data-theme="dark"] .bottom-nav { box-shadow: 0 -2px 16px rgba(0,0,0,0.4); }
/* 深色模式侧栏：比浅色略深，保持层次 */
[data-theme="dark"] .admin-sidebar {
  background: linear-gradient(180deg, #164E75 0%, #0F3A54 50%, #0A2838 100%);
  box-shadow: 2px 0 20px rgba(0,0,0,0.25);
}
[data-theme="dark"] .admin-sidebar .logo { background: rgba(255,255,255,0.04); border-bottom-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .sidebar-brand { color: var(--sky-light); }
/* 深色模式：底部导航栏适配 */
[data-theme="dark"] .bottom-nav { background: rgba(19,40,61,0.94); border-top-color: var(--border); }
/* 深色模式：logo hero 玻璃层适配 */
[data-theme="dark"] .logo-hero { background: linear-gradient(135deg, var(--glass-bg) 0%, var(--glass-bg-2) 100%); }
/* 深色模式：表格行 hover */
[data-theme="dark"] .data-table tr:hover { background: var(--surface-2); }
/* 深色模式：app-header 渐变适配 */
[data-theme="dark"] .app-header { background: linear-gradient(135deg, #164E75 0%, #0F3A54 50%, #0A2838 100%); }
/* 深色模式：toast 背景适配 */
[data-theme="dark"] .toast { background: rgba(10,22,38,0.92); border: 1px solid var(--border); }
/* 深色模式：modal 遮罩适配 */
[data-theme="dark"] .modal-overlay { background: rgba(0,0,0,0.65); }
/* 深色模式：考试操作栏适配 */
[data-theme="dark"] .exam-action-bar { background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface) 100%); border-color: var(--border); }
/* 深色模式：app-download-card 适配 */
[data-theme="dark"] .app-download-card { background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%); border-color: var(--border) !important; }
/* 深色模式：qr-wrapper 适配 */
[data-theme="dark"] .qr-wrapper { border-color: var(--border); }
/* 深色模式：filter-chip 适配 */
[data-theme="dark"] .filter-chip { background: var(--surface-2); border-color: var(--border); color: var(--text-secondary); }
[data-theme="dark"] .filter-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }


/* ==================== 主题切换按钮 ==================== */
.theme-toggle {
  position: fixed; bottom: 84px; right: 14px; z-index: 1200;
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
  background: var(--surface); color: var(--primary);
  border: 1px solid var(--border); box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1),
              background 0.35s ease, color 0.35s ease,
              box-shadow 0.35s ease, border-color 0.35s ease;
}
.theme-toggle i {
  transition: transform 0.45s cubic-bezier(0.4,0,0.2,1),
              opacity 0.25s ease;
  display: inline-block;
}
.theme-toggle:hover {
  transform: scale(1.1);
  background: var(--primary-light);
  box-shadow: 0 4px 16px rgba(46,139,192,0.25);
}
.theme-toggle:active { transform: scale(0.92); }
.theme-switching .theme-toggle { box-shadow: 0 0 20px rgba(46,139,192,0.35); }
@media (max-width: 480px) { .theme-toggle { bottom: 76px; } }

/* ============================================================
   Phase 4 — 体验增强（图表 / 空状态插画 / 微交互）
   统一接入新能源蓝天设计令牌，尊重 prefers-reduced-motion
   ============================================================ */

/* ---------- 图表容器 ---------- */
.chart-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 20px;
  margin-bottom: 20px;
}
@media (max-width: 900px) { .chart-grid { grid-template-columns: 1fr; } }
.chart-box {
  position: relative;
  width: 100%;
  height: 260px;
  padding: 8px 4px 0;
}
.chart-box canvas { max-width: 100%; }

/* ---------- 增强空状态（SVG 插画） ---------- */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.empty-state .illu { width: 120px; height: 96px; margin-bottom: 8px; color: var(--primary); opacity: 0.92; }
.empty-state .illu svg { width: 100%; height: 100%; display: block; }
.empty-state .title { font-size: 15px; font-weight: 600; color: var(--text); }
.empty-state .hint { font-size: 13px; color: var(--text-secondary); max-width: 320px; }
.empty-state .empty-action { margin-top: 10px; }

/* ---------- 骨架屏 ---------- */
.skeleton { position: relative; overflow: hidden; background: var(--surface-2); border-radius: var(--radius-xs); }
.skeleton::after {
  content: ''; position: absolute; inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(46,139,192,0.10), transparent);
  animation: skeletonShimmer 1.4s infinite;
}
@keyframes skeletonShimmer { 100% { transform: translateX(100%); } }
.skeleton-line { height: 14px; margin: 8px 0; border-radius: 6px; }
.skeleton-block { height: 64px; border-radius: var(--radius-sm); }
.skeleton-stat {
  background: var(--surface); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 16px;
}
.skeleton-stat .sk-ico { width: 52px; height: 52px; border-radius: var(--radius-sm); flex-shrink: 0; }

/* 骨架屏：卡片（视频/培训列表） */
.skeleton-card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px; display: flex; gap: 12px; }
.skeleton-card.horizontal { align-items: center; }
.skeleton-card.block { flex-direction: column; }
.skeleton-card .sk-body { flex: 1; min-width: 0; }
.skeleton-card .sk-body .skeleton-line:last-child { margin-bottom: 0; }
.skeleton-card .sk-media { background: var(--surface-2); }
.skeleton-card .sk-bar { background: var(--surface-2); }
.skeleton-card .sk-actions { display: flex; gap: 8px; margin-top: 14px; }
.skeleton-card .sk-btn { height: 34px; border-radius: var(--radius-sm); flex: 1; background: var(--surface-2); }
.skeleton-card.stack { margin-bottom: 12px; }

/* 骨架屏：单证书大卡 */
.skeleton-cert { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 24px; text-align: center; max-width: 480px; margin: 0 auto; }
.skeleton-cert .sk-media { background: var(--surface-2); }
.skeleton-cert .skeleton-line:last-child { margin-bottom: 0; }

/* ---------- 按钮波纹 ---------- */
.btn { position: relative; overflow: hidden; }
.ripple {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.55);
  transform: scale(0); animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}
@keyframes rippleAnim { to { transform: scale(2.6); opacity: 0; } }

/* ---------- 页面进入动效 ---------- */
.page-enter { animation: pageEnter 0.42s cubic-bezier(0.22,1,0.36,1) both; }
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 统计数字滚动 ---------- */
.stat-value.rolling { font-variant-numeric: tabular-nums; }

/* ---------- Toast 滑入增强 ---------- */
.toast {
  animation: toastIn 0.32s cubic-bezier(0.22,1,0.36,1) both, toastOut 0.3s ease 2.7s both;
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, -14px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translate(-50%, 0); }
  to   { opacity: 0; transform: translate(-50%, -14px); }
}

/* ---------- 无障碍：减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .skeleton::after, .ripple, .page-enter, .stat-value.rolling, .toast, .theme-toggle i {
    animation: none !important; transition: none !important; }
  .skeleton::after { display: none; }
}