/* roulang page: index */
:root {
      --primary: #0E7066;
      --primary-hover: #085a52;
      --primary-light: #F0F8F6;
      --primary-soft: #E6F3F0;
      --accent: #F97316;
      --accent-hover: #ea580c;
      --dark-accent: #0A2522;
      --text-main: #1F2937;
      --text-muted: #4B5563;
      --text-light: #9CA3AF;
      --border-color: #D1E7DD;
      --border-subtle: #E5E7EB;
      --bg-white: #FFFFFF;
      --bg-neutral: #F8FAFC;
      --shadow-sm: 0 2px 8px rgba(14, 112, 102, 0.05);
      --shadow-md: 0 6px 24px -2px rgba(14, 112, 102, 0.08);
      --shadow-lg: 0 12px 32px -4px rgba(14, 112, 102, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --max-w: 1240px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FCFDFD;
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button, input, select, textarea {
      font-family: inherit;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: var(--max-w);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部信任信息条 */
    .top-bar {
      background-color: var(--primary-light);
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      height: 38px;
      display: flex;
      align-items: center;
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .top-bar-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: var(--primary);
      font-weight: 600;
    }

    .badge-trust {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: #E0F2E9;
      color: #065F46;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 500;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 14px rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid rgba(209, 231, 221, 0.6);
    }

    .navbar {
      height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), #14B8A6);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 24px;
      box-shadow: 0 4px 10px rgba(14, 112, 102, 0.2);
    }

    .nav-menu {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 28px;
    }

    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 4px;
      position: relative;
    }

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

    .nav-item a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: width 0.25s ease;
    }

    .nav-item a:hover::after {
      width: 100%;
    }

    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--accent);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
      transition: all 0.25s ease;
    }

    .nav-cta-btn:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
    }

    /* 移动端汉堡按钮 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 板块通用标题与样式 */
    .section-py {
      padding: 80px 0;
      position: relative;
    }

    .section-head {
      margin-bottom: 48px;
      text-align: center;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-soft);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* 板块 1: Hero（文档帮助/问诊搜索与热门直达） */
    .hero-section {
      background: linear-gradient(180deg, #F0F8F6 0%, #FFFFFF 100%);
      padding: 64px 0 76px;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-center-box {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: rgba(14, 112, 102, 0.1);
      color: var(--primary);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary);
    }

    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .search-panel-wrap {
      background: #FFFFFF;
      padding: 18px;
      border-radius: var(--radius-lg);
      box-shadow: 0 12px 36px -6px rgba(14, 112, 102, 0.12);
      border: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .search-panel-form {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr 130px;
      gap: 12px;
    }

    .search-field {
      position: relative;
    }

    .search-field select, .search-field input {
      width: 100%;
      height: 48px;
      padding: 0 14px;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #FAFBFB;
      transition: border-color 0.2s;
    }

    .search-field select:focus, .search-field input:focus {
      border-color: var(--primary);
      background-color: #FFF;
    }

    .search-btn {
      height: 48px;
      background: var(--primary);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

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

    .hero-chips-wrap {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .chip-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 5px 12px;
      border-radius: 20px;
      color: var(--text-main);
      font-weight: 500;
      transition: all 0.2s;
    }

    .chip-item:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 板块 2: 认证与权威资信条 */
    .cert-section {
      background-color: #FFFFFF;
      border-bottom: 1px solid var(--border-subtle);
      padding: 24px 0;
    }

    .cert-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .cert-card {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 16px;
      background: var(--primary-light);
      border-radius: var(--radius-sm);
      border: 1px solid #D5EBE5;
    }

    .cert-icon {
      width: 36px;
      height: 36px;
      background: #FFFFFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      color: var(--primary);
      font-weight: bold;
      flex-shrink: 0;
    }

    .cert-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .cert-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 3: 资讯流与热榜入口（双栏结构） */
    .stream-rank-section {
      background-color: var(--bg-neutral);
    }

    .dual-stream-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
    }

    .stream-feed-col h3, .rank-col h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feed-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-subtle);
      margin-bottom: 16px;
      display: flex;
      gap: 20px;
      transition: transform 0.2s, box-shadow 0.2s;
    }

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

    .feed-card-thumb {
      width: 140px;
      height: 100px;
      border-radius: var(--radius-sm);
      object-fit: cover;
      flex-shrink: 0;
    }

    .feed-card-body {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feed-meta {
      display: flex;
      gap: 10px;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 6px;
    }

    .feed-tag {
      background: var(--primary-soft);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .feed-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 6px;
    }

    .feed-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* 右侧排行榜卡片 */
    .rank-card-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
    }

    .rank-list {
      list-style: none;
    }

    .rank-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-subtle);
    }

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

    .rank-index {
      width: 24px;
      height: 24px;
      border-radius: 4px;
      background: #F3F4F6;
      color: var(--text-muted);
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .rank-item:nth-child(-n+3) .rank-index {
      background: var(--accent);
      color: #FFFFFF;
    }

    .rank-item-info {
      flex: 1;
    }

    .rank-item-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .rank-item-count {
      font-size: 12px;
      color: var(--text-light);
    }

    .rank-action-link {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块 4: 六维服务优势区 */
    .features-section {
      background-color: #FFFFFF;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-neutral);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
    }

    .feature-card:hover {
      background: #FFFFFF;
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      background: var(--primary-soft);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 5: 重点推介科室 */
    .dept-section {
      background-color: var(--primary-light);
    }

    .dept-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .dept-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
    }

    .dept-img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }

    .dept-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .dept-badges {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
    }

    .dept-badge {
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 600;
    }

    .dept-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .dept-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .dept-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border-subtle);
      padding-top: 16px;
    }

    .dept-stat-num {
      font-size: 13px;
      color: var(--text-light);
    }

    .dept-stat-num strong {
      color: var(--primary);
      font-size: 16px;
    }

    .dept-book-btn {
      background: var(--primary);
      color: #fff;
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
    }

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

    /* 板块 6: 深色理念承诺板块 */
    .mission-section {
      background-color: var(--dark-accent);
      color: #FFFFFF;
      padding: 90px 0;
    }

    .mission-inner {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .mission-title {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 24px;
      line-height: 1.35;
      color: #FFFFFF;
    }

    .mission-sub {
      font-size: 16px;
      color: #A3BFBD;
      line-height: 1.8;
      margin-bottom: 48px;
    }

    .mission-compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      text-align: left;
    }

    .compare-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 28px;
      backdrop-filter: blur(4px);
    }

    .compare-card.highlight {
      background: rgba(14, 112, 102, 0.25);
      border-color: rgba(20, 184, 166, 0.4);
    }

    .compare-card h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .compare-list {
      list-style: none;
      font-size: 14px;
      line-height: 2;
      color: #D1E7E5;
    }

    .compare-list li {
      position: relative;
      padding-left: 20px;
    }

    .compare-list li::before {
      content: '•';
      position: absolute;
      left: 0;
      color: var(--accent);
    }

    /* 板块 7: 就诊场景故事 */
    .stories-section {
      background-color: #FFFFFF;
    }

    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .story-card {
      display: flex;
      background: var(--bg-neutral);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
    }

    .story-img {
      width: 180px;
      object-fit: cover;
      flex-shrink: 0;
    }

    .story-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .story-tag {
      font-size: 12px;
      background: #E5E7EB;
      color: var(--text-main);
      padding: 2px 8px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 8px;
      font-weight: 600;
    }

    .story-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .story-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .story-outcome {
      font-size: 12px;
      color: var(--primary);
      font-weight: 700;
      background: var(--primary-soft);
      padding: 6px 10px;
      border-radius: 4px;
    }

    /* 板块 8: 数据统计条 */
    .stat-section {
      background: linear-gradient(135deg, var(--primary) 0%, #085A52 100%);
      color: #FFFFFF;
      padding: 50px 0;
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }

    .stat-item {
      padding: 10px;
    }

    .stat-number {
      font-size: 38px;
      font-weight: 900;
      letter-spacing: -1px;
      margin-bottom: 6px;
      color: #FFFFFF;
      font-variant-numeric: tabular-nums;
    }

    .stat-label {
      font-size: 14px;
      color: #D1E7DD;
      font-weight: 500;
    }

    /* 板块 9: 患者实名评价 */
    .reviews-section {
      background-color: var(--bg-neutral);
    }

    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .review-meta h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-meta span {
      font-size: 12px;
      color: var(--text-light);
    }

    .review-rating {
      color: #F59E0B;
      font-size: 14px;
      letter-spacing: 2px;
    }

    .review-body {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex: 1;
    }

    .review-badge-row {
      display: flex;
      gap: 8px;
      font-size: 12px;
    }

    .review-tag {
      background: #F3F4F6;
      color: var(--text-muted);
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 板块 10: 资讯与指南速递 */
    .news-section {
      background-color: #FFFFFF;
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--border-color);
      transform: translateY(-3px);
    }

    .news-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
    }

    .news-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 10px;
    }

    .news-topic {
      color: var(--primary);
      font-weight: 600;
    }

    .news-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 10px;
    }

    .news-snippet {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-btn {
      font-size: 13px;
      color: var(--primary);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 11: 挂号答疑 FAQ */
    .faq-section {
      background-color: var(--bg-neutral);
    }

    .faq-wrapper {
      max-width: 820px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

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

    .faq-toggle {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
    }

    .faq-icon {
      font-size: 18px;
      color: var(--primary);
      font-weight: bold;
      transition: transform 0.25s ease;
    }

    .faq-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      display: none;
      border-top: 1px dashed var(--border-subtle);
      padding-top: 14px;
    }

    .faq-item.active .faq-content {
      display: block;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 板块 12: 极速预约表单与转化区 */
    .booking-section {
      background: linear-gradient(180deg, var(--bg-neutral) 0%, #E6F3F0 100%);
      padding: 80px 0;
    }

    .book-card-wrap {
      max-width: 920px;
      margin: 0 auto;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }

    .book-card-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .book-card-header h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .book-card-header p {
      font-size: 14px;
      color: var(--text-muted);
    }

    .book-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 24px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-group input, .form-group select {
      height: 46px;
      padding: 0 14px;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background: #FAFBFB;
      transition: border-color 0.2s;
    }

    .form-group input:focus, .form-group select:focus {
      border-color: var(--primary);
      background: #FFFFFF;
    }

    .form-submit-row {
      text-align: center;
      margin-top: 10px;
    }

    .submit-cta-btn {
      width: 100%;
      height: 50px;
      background: var(--accent);
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
      transition: background 0.2s, transform 0.2s;
    }

    .submit-cta-btn:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }

    .book-security-note {
      text-align: center;
      font-size: 12px;
      color: var(--text-light);
      margin-top: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    /* 统一页脚 */
    .site-footer {
      background-color: var(--dark-accent);
      color: #94A3B8;
      font-size: 13px;
      padding-top: 64px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-desc {
      line-height: 1.8;
      margin-bottom: 16px;
      color: #A3BFBD;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #94A3B8;
    }

    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }

    .footer-contact-info p {
      line-height: 1.9;
      color: #CBD5E1;
    }

    .footer-contact-info strong {
      color: #FFFFFF;
    }

    .footer-bottom {
      padding: 24px 0;
      text-align: center;
      font-size: 12px;
      color: #64748B;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-bottom-links {
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .cert-grid { grid-template-columns: repeat(2, 1fr); }
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .dept-grid { grid-template-columns: repeat(2, 1fr); }
      .dual-stream-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        display: none;
      }
      .nav-menu.show { display: flex; }
      .menu-toggle { display: block; }
      .hero-title { font-size: 28px; }
      .search-panel-form { grid-template-columns: 1fr; }
      .features-grid { grid-template-columns: 1fr; }
      .dept-grid { grid-template-columns: 1fr; }
      .mission-compare-grid { grid-template-columns: 1fr; }
      .story-grid { grid-template-columns: 1fr; }
      .story-card { flex-direction: column; }
      .story-img { width: 100%; height: 180px; }
      .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
      .review-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .book-card-wrap { padding: 24px; }
      .book-form-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }