/* roulang page: index */
:root {
      --bg-main: #090d16;
      --bg-surface: #131b2e;
      --bg-card: rgba(26, 37, 60, 0.75);
      --bg-glass: rgba(15, 23, 42, 0.85);
      --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 40%, #be185d 100%);
      --accent-gold: #f59e0b;
      --accent-pink: #be185d;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dark: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(245, 158, 11, 0.45);
      --radius-xl: 20px;
      --radius-md: 12px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.55);
      --shadow-hover: 0 16px 36px -4px rgba(245, 158, 11, 0.15);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

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

    body {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      background: radial-gradient(circle at 50% 0%, #17233f 0%, #090d16 65%);
      background-attachment: fixed;
    }

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

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

    .container {
      width: 100%;
      max-width: 1380px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 帮助文档顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--bg-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      height: 72px;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 20px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      white-space: nowrap;
    }

    .brand-badge {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: var(--radius-full);
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.3);
      color: var(--accent-gold);
      font-weight: 600;
    }

    .nav-search {
      flex: 1;
      max-width: 480px;
      position: relative;
    }

    .nav-search input {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      padding: 9px 40px 9px 16px;
      border-radius: var(--radius-full);
      color: var(--text-main);
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }

    .nav-search input:focus {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--accent-gold);
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    }

    .nav-search .search-key {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.7rem;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      padding: 2px 6px;
      color: var(--text-muted);
      pointer-events: none;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 16px;
      list-style: none;
      flex-shrink: 0;
    }

    .nav-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-md);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.06);
    }

    .nav-links a.active {
      color: var(--accent-gold);
      border-bottom: 2px solid var(--accent-gold);
      border-radius: 4px 4px 0 0;
    }

    .btn-action {
      background: var(--primary-gradient);
      color: #fff;
      font-weight: 600;
      font-size: 0.88rem;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.07);
      color: var(--text-main);
      border: 1px solid var(--border-subtle);
      font-weight: 600;
      font-size: 0.88rem;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.2);
    }

    /* 主体布局：侧边栏 + 内容 */
    .app-layout {
      display: flex;
      padding: 32px 0 64px;
      gap: 36px;
    }

    .sidebar-dock {
      width: 260px;
      flex-shrink: 0;
      position: sticky;
      top: 104px;
      height: calc(100vh - 120px);
      overflow-y: auto;
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .sidebar-dock::-webkit-scrollbar {
      width: 4px;
    }
    .sidebar-dock::-webkit-scrollbar-thumb {
      background: rgba(255, 255, 255, 0.15);
      border-radius: 4px;
    }

    .doc-tree-group h4 {
      font-size: 0.78rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-dark);
      margin-bottom: 12px;
      padding-left: 8px;
    }

    .doc-tree-group ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .doc-tree-group li a {
      display: block;
      padding: 8px 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-radius: 8px;
      border-left: 2px solid transparent;
    }

    .doc-tree-group li a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }

    .doc-tree-group li a.active {
      color: #fff;
      background: rgba(245, 158, 11, 0.1);
      border-left: 2px solid var(--accent-gold);
      font-weight: 600;
    }

    .main-stream {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 64px;
    }

    /* 通用板块与圆角大卡 */
    .section-box {
      background: var(--bg-card);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }

    .section-header {
      margin-bottom: 32px;
    }

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-gold);
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-size: 0.75rem;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
    }

    .badge-primary {
      background: rgba(245, 158, 11, 0.15);
      border-color: rgba(245, 158, 11, 0.35);
      color: var(--accent-gold);
    }

    .badge-pink {
      background: rgba(190, 24, 93, 0.15);
      border-color: rgba(190, 24, 93, 0.35);
      color: #f43f5e;
    }

    /* 1. 首屏全景引航 Hero */
    .hero-panel {
      padding: 56px 48px;
      background: linear-gradient(180deg, rgba(19, 27, 46, 0.85) 0%, rgba(9, 13, 22, 0.95) 100%),
                  url('/assets/images/1381b73eb360f34f.jpg') center/cover no-repeat;
      border: 1px solid rgba(245, 158, 11, 0.2);
    }

    .hero-h1 {
      font-size: 2.6rem;
      font-weight: 900;
      letter-spacing: -1px;
      line-height: 1.25;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #ffffff 30%, #fcd34d 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      line-height: 1.8;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 40px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding-top: 32px;
      border-top: 1px solid var(--border-subtle);
    }

    .stat-pill {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .stat-val {
      font-size: 1.7rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.5px;
    }

    .stat-lab {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 2. 核心架构与服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .matrix-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .matrix-card:hover {
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(245, 158, 11, 0.3);
      transform: translateY(-3px);
    }

    .matrix-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .matrix-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
    }

    .matrix-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    /* 3. 运行效能与吞吐数据 */
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
    }

    .metric-name {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 4. 流式传输与解码流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }

    .step-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }

    .step-idx {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(245, 158, 11, 0.2);
      color: var(--accent-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 14px;
    }

    .step-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .step-text {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 5. 焦点专题案例墙 */
    .bento-wall {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .bento-item {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
      aspect-ratio: 16 / 10;
      background: #000;
    }

    .bento-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.75;
      transition: var(--transition);
    }

    .bento-item:hover img {
      opacity: 0.9;
      transform: scale(1.04);
    }

    .bento-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(9, 13, 22, 0.95) 15%, transparent 60%);
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .bento-tag-wrap {
      display: flex;
      gap: 6px;
      margin-bottom: 8px;
    }

    .bento-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
    }

    /* 6. 多端设备全景支持 */
    .device-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .device-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
    }

    .device-card h4 {
      font-size: 1.15rem;
      color: #fff;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .device-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    /* 7. 行业前沿与资讯专栏 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .news-img {
      height: 160px;
      overflow: hidden;
      position: relative;
    }

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

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

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.75rem;
      color: var(--text-dark);
      margin-bottom: 10px;
    }

    .news-h3 {
      font-size: 1.05rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-text {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 合作伙伴生态 */
    .partner-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: space-between;
    }

    .partner-item {
      flex: 1 1 calc(25% - 16px);
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      text-align: center;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 9. 性能保障与承诺 */
    .sla-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .sla-card {
      background: rgba(245, 158, 11, 0.03);
      border: 1px solid rgba(245, 158, 11, 0.2);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .sla-card h4 {
      font-size: 1.1rem;
      color: var(--accent-gold);
      margin-bottom: 8px;
    }

    .sla-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. FAQ 折叠面板 */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
    }

    .faq-q {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .faq-a {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 11. 社区反馈评价 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-subtle);
      padding-top: 12px;
    }

    .author-name {
      font-size: 0.85rem;
      font-weight: 600;
      color: #fff;
    }

    /* 12. 全局行动转化区 */
    .cta-box {
      background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(190, 24, 93, 0.12) 100%);
      border: 1px solid rgba(245, 158, 11, 0.4);
      text-align: center;
      padding: 56px 32px;
    }

    .cta-box h3 {
      font-size: 2.1rem;
      font-weight: 800;
      color: #fff;
      margin-bottom:16px;
    }

    .cta-box p {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto 32px;
      line-height: 1.8;
    }

    .cta-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 全局页脚 */
    .site-footer {
      background: #060910;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      margin-top: auto;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h3 {
      font-size: 1.3rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .footer-col h4 {
      font-size: 0.92rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .footer-col a:hover {
      color: var(--accent-gold);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      color: var(--text-dark);
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式断点 */
    @media (max-width: 1080px) {
      .sidebar-dock {
        display: none;
      }
      .metrics-row,
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .device-grid,
      .news-grid,
      .sla-grid,
      .review-grid,
      .bento-wall {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-panel {
        padding: 36px 20px;
      }
      .hero-h1 {
        font-size: 1.9rem;
      }
      .matrix-grid,
      .metrics-row,
      .flow-steps,
      .device-grid,
      .news-grid,
      .sla-grid,
      .review-grid,
      .bento-wall {
        grid-template-columns: 1fr;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .nav-search {
        display: none;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .section-box {
        padding: 24px 16px;
      }
      .section-title {
        font-size: 1.45rem;
      }
    }

/* roulang page: category2 */
:root {
      --bg-main: #090d16;
      --bg-surface: #131b2e;
      --bg-card: rgba(26, 37, 60, 0.75);
      --bg-glass: rgba(15, 23, 42, 0.85);
      --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 40%, #be185d 100%);
      --accent-gold: #f59e0b;
      --accent-pink: #be185d;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dark: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(245, 158, 11, 0.45);
      --radius-xl: 20px;
      --radius-md: 12px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.55);
      --shadow-hover: 0 16px 36px -4px rgba(245, 158, 11, 0.15);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }
    body {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      background: radial-gradient(circle at 50% 0%, #17233f 0%, #090d16 65%);
      background-attachment: fixed;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1380px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--bg-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      height: 72px;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 20px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      white-space: nowrap;
    }
    .brand-badge {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: var(--radius-full);
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.3);
      color: var(--accent-gold);
      font-weight: 600;
    }
    .nav-search {
      flex: 1;
      max-width: 480px;
      position: relative;
    }
    .nav-search input {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      padding: 9px 40px 9px 16px;
      border-radius: var(--radius-full);
      color: var(--text-main);
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search input:focus {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--accent-gold);
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    }
    .nav-search .search-key {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.7rem;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      padding: 2px 6px;
      color: var(--text-muted);
      pointer-events: none;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 16px;
      list-style: none;
      flex-shrink: 0;
    }
    .nav-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-md);
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.06);
    }
    .nav-links a.active {
      color: var(--accent-gold);
      border-bottom: 2px solid var(--accent-gold);
      border-radius: 4px 4px 0 0;
    }
    .btn-action {
      background: var(--primary-gradient);
      color: #fff;
      font-weight: 600;
      font-size: 0.88rem;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.07);
      color: var(--text-main);
      border: 1px solid var(--border-subtle);
      font-weight: 600;
      font-size: 0.88rem;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.2);
    }
    .page-layout {
      display: flex;
      gap: 32px;
      padding: 40px 0 80px;
    }
    .doc-sidebar {
      width: 280px;
      flex-shrink: 0;
      position: sticky;
      top: 96px;
      height: fit-content;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 24px 18px;
      backdrop-filter: blur(10px);
    }
    .sidebar-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent-gold);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 16px;
      padding-left: 8px;
    }
    .sidebar-menu {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .sidebar-menu a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 12px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-radius: var(--radius-md);
      border-left: 3px solid transparent;
    }
    .sidebar-menu a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .sidebar-menu a.active {
      color: #fff;
      background: rgba(245, 158, 11, 0.12);
      border-left-color: var(--accent-gold);
      font-weight: 600;
    }
    .sidebar-count {
      font-size: 0.75rem;
      background: rgba(255, 255, 255, 0.08);
      padding: 2px 7px;
      border-radius: var(--radius-full);
      color: var(--text-dark);
    }
    .main-stream {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 56px;
    }
    .section-box {
      background: var(--bg-card);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .section-header {
      margin-bottom: 28px;
    }
    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-gold);
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 0.92rem;
      margin-top: 8px;
      line-height: 1.6;
    }
    .category-hero {
      background: linear-gradient(180deg, rgba(26, 37, 60, 0.9) 0%, rgba(15, 23, 42, 0.8) 100%);
      border: 1px solid rgba(245, 158, 11, 0.25);
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: var(--shadow-card);
    }
    .category-hero-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 24px;
    }
    .hero-info {
      max-width: 680px;
    }
    .hero-title {
      font-size: 2.1rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 12px;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }
    .spec-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      font-size: 0.78rem;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
    }
    .spec-badge.gold {
      background: rgba(245, 158, 11, 0.12);
      border-color: rgba(245, 158, 11, 0.35);
      color: var(--accent-gold);
    }
    .spec-badge.pink {
      background: rgba(190, 24, 93, 0.12);
      border-color: rgba(190, 24, 93, 0.35);
      color: #f472b6;
    }
    .filter-bar {
      display: flex;
      flex-direction: column;
      gap: 16px;
      background: rgba(15, 23, 42, 0.65);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .filter-label {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-dark);
      min-width: 68px;
    }
    .filter-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-btn {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid transparent;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-btn:hover,
    .filter-btn.active {
      color: #fff;
      background: rgba(245, 158, 11, 0.15);
      border-color: rgba(245, 158, 11, 0.4);
    }
    .media-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }
    .media-card {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .media-card:hover {
      transform: translateY(-4px);
      border-color: rgba(245, 158, 11, 0.3);
      box-shadow: var(--shadow-hover);
    }
    .card-thumb {
      position: relative;
      width: 100%;
      height: 240px;
      overflow: hidden;
      background: #0f172a;
    }
    .card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .card-thumb img {
      transform: scale(1.05);
    }
    .card-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      padding: 3px 8px;
      border-radius: 6px;
      font-size: 0.72rem;
      font-weight: 700;
      background: rgba(0, 0, 0, 0.65);
      backdrop-filter: blur(4px);
      color: var(--accent-gold);
      border: 1px solid rgba(245, 158, 11, 0.4);
    }
    .card-score {
      position: absolute;
      top: 12px;
      right: 12px;
      padding: 3px 8px;
      border-radius: 6px;
      font-size: 0.72rem;
      font-weight: 800;
      background: rgba(190, 24, 93, 0.7);
      backdrop-filter: blur(4px);
      color: #fff;
    }
    .card-meta-bar {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 8px 12px;
      background: linear-gradient(0deg, rgba(9, 13, 22, 0.95) 0%, transparent 100%);
      display: flex;
      justify-content: space-between;
      font-size: 0.72rem;
      color: #cbd5e1;
    }
    .card-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
      gap: 10px;
    }
    .card-title {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-footer {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 12px;
    }
    .card-rate-info {
      font-size: 0.75rem;
      color: var(--text-dark);
    }
    .btn-play-preview {
      padding: 5px 12px;
      font-size: 0.75rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      background: rgba(255, 255, 255, 0.07);
      color: var(--text-main);
      border: 1px solid var(--border-subtle);
    }
    .btn-play-preview:hover {
      background: var(--accent-gold);
      color: #000;
      border-color: var(--accent-gold);
    }
    .pagination-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      padding-top: 8px;
    }
    .pager-left {
      font-size: 0.82rem;
      color: var(--text-dark);
    }
    .pager-controls {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .page-num {
      width: 36px;
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
    }
    .page-num:hover,
    .page-num.active {
      background: var(--accent-gold);
      color: #000;
      border-color: var(--accent-gold);
    }
    .btn-loadmore {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 24px;
      font-size: 0.88rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      cursor: pointer;
    }
    .btn-loadmore:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.25);
    }
    .trending-list {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }
    .trend-card {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-subtle);
      border-radius: 14px;
      padding: 16px;
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 8px;
      transition: var(--transition);
    }
    .trend-card:hover {
      border-color: rgba(245, 158, 11, 0.35);
      transform: translateY(-3px);
    }
    .trend-index {
      font-size: 1.4rem;
      font-weight: 900;
      line-height: 1;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .trend-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .trend-meta {
      font-size: 0.75rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
    }
    .troubleshoot-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .troubleshoot-card {
      background: rgba(15, 23, 42, 0.55);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .guide-tag {
      align-self: flex-start;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: rgba(245, 158, 11, 0.12);
      color: var(--accent-gold);
      border: 1px solid rgba(245, 158, 11, 0.3);
    }
    .guide-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .guide-p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .guide-bullets {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 4px;
    }
    .guide-bullets li {
      font-size: 0.8rem;
      color: #cbd5e1;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .guide-bullets li::before {
      content: "";
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--accent-gold);
      flex-shrink: 0;
    }
    .cross-category-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .cross-cat-card {
      background: rgba(15, 23, 42, 0.55);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: var(--transition);
    }
    .cross-cat-card:hover {
      border-color: rgba(245, 158, 11, 0.4);
      background: rgba(26, 37, 60, 0.8);
      transform: translateY(-2px);
    }
    .cat-text h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .cat-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .cat-arrow {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--border-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-gold);
      font-weight: 700;
      flex-shrink: 0;
      transition: var(--transition);
    }
    .cross-cat-card:hover .cat-arrow {
      background: var(--accent-gold);
      color: #000;
      transform: translateX(4px);
    }
    .site-footer {
      background: #080c14;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 30px;
      margin-top: auto;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 400px;
    }
    .footer-col h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      font-size: 0.84rem;
      color: var(--text-muted);
    }
    .footer-col a:hover {
      color: var(--accent-gold);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.78rem;
      color: var(--text-dark);
    }
    @media (max-width: 1200px) {
      .media-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .trending-list {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    @media (max-width: 992px) {
      .page-layout {
        flex-direction: column;
      }
      .doc-sidebar {
        width: 100%;
        position: static;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .media-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .trending-list {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .header-nav {
        height: auto;
        padding: 12px 0;
      }
      .nav-inner {
        flex-wrap: wrap;
      }
      .nav-search {
        order: 3;
        max-width: 100%;
        flex-basis: 100%;
      }
      .nav-links {
        gap: 8px;
      }
      .category-hero-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .hero-title {
        font-size: 1.6rem;
      }
      .troubleshoot-grid,
      .cross-category-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      .media-grid {
        grid-template-columns: 1fr;
      }
      .trending-list {
        grid-template-columns: 1fr;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category1 */
:root {
      --bg-main: #090d16;
      --bg-surface: #131b2e;
      --bg-card: rgba(26, 37, 60, 0.75);
      --bg-glass: rgba(15, 23, 42, 0.85);
      --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 40%, #be185d 100%);
      --accent-gold: #f59e0b;
      --accent-pink: #be185d;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dark: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(245, 158, 11, 0.45);
      --radius-xl: 20px;
      --radius-md: 12px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.55);
      --shadow-hover: 0 16px 36px -4px rgba(245, 158, 11, 0.15);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }
    body {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      background: radial-gradient(circle at 50% 0%, #17233f 0%, #090d16 65%);
      background-attachment: fixed;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1380px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--bg-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      height: 72px;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 20px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      white-space: nowrap;
    }
    .brand-badge {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: var(--radius-full);
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.3);
      color: var(--accent-gold);
      font-weight: 600;
    }
    .nav-search {
      flex: 1;
      max-width: 480px;
      position: relative;
    }
    .nav-search input {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      padding: 9px 40px 9px 16px;
      border-radius: var(--radius-full);
      color: var(--text-main);
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search input:focus {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--accent-gold);
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    }
    .nav-search .search-key {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.7rem;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      padding: 2px 6px;
      color: var(--text-muted);
      pointer-events: none;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 16px;
      list-style: none;
      flex-shrink: 0;
    }
    .nav-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-md);
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.06);
    }
    .nav-links a.active {
      color: var(--accent-gold);
      border-bottom: 2px solid var(--accent-gold);
      border-radius: 4px 4px 0 0;
    }
    .btn-action {
      background: var(--primary-gradient);
      color: #fff;
      font-weight: 600;
      font-size: 0.88rem;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    }

    /* 主布局 */
    .page-layout {
      display: flex;
      gap: 32px;
      margin: 40px auto 80px;
    }
    .sidebar-doc {
      width: 260px;
      flex-shrink: 0;
      position: sticky;
      top: 96px;
      align-self: flex-start;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 24px;
      backdrop-filter: blur(10px);
    }
    .sidebar-title {
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-dark);
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .doc-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .doc-nav-list a {
      display: block;
      padding: 9px 12px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-radius: 8px;
      border-left: 2px solid transparent;
    }
    .doc-nav-list a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .doc-nav-list a.active {
      color: #fff;
      background: rgba(245, 158, 11, 0.1);
      border-left: 2px solid var(--accent-gold);
      font-weight: 600;
    }

    .main-stream {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 40px;
    }

    /* 通用圆角大卡 */
    .section-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 32px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }

    /* 1. 分类专属标头区 */
    .category-header-card {
      background: linear-gradient(135deg, rgba(26, 37, 60, 0.95) 0%, rgba(19, 27, 46, 0.85) 100%);
      border: 1px solid rgba(245, 158, 11, 0.2);
      position: relative;
      overflow: hidden;
    }
    .category-header-card::before {
      content: "";
      position: absolute;
      top: -50%;
      right: -20%;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .cat-badge-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }
    .cat-tag {
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      background: rgba(245, 158, 11, 0.15);
      border: 1px solid rgba(245, 158, 11, 0.35);
      color: var(--accent-gold);
    }
    .cat-status {
      font-size: 0.78rem;
      color: var(--text-dark);
    }
    .category-header-card h1 {
      font-size: 2rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .category-header-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 820px;
    }
    .header-stat-row {
      display: flex;
      gap: 24px;
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border-subtle);
      flex-wrap: wrap;
    }
    .stat-pill {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .stat-pill strong {
      color: var(--accent-gold);
      font-size: 1.05rem;
    }

    /* 2. 属性筛选控制台 */
    .filter-panel {
      display: flex;
      flex-direction: column;
      gap: 16px;
      padding: 24px 32px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
    }
    .filter-label {
      font-size: 0.82rem;
      color: var(--text-dark);
      font-weight: 600;
      min-width: 60px;
    }
    .filter-options {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .filter-btn {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
      font-size: 0.82rem;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-btn:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.08);
    }
    .filter-btn.active {
      background: var(--primary-gradient);
      color: #fff;
      border-color: transparent;
      font-weight: 600;
      box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
    }

    /* 3. 核心影视卡片网格 */
    .media-grid-section {
      padding: 0;
      background: transparent;
      border: none;
      box-shadow: none;
    }
    .grid-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 20px;
    }
    .grid-title {
      font-size: 1.25rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .grid-title span {
      font-size: 0.85rem;
      color: var(--text-dark);
      font-weight: 400;
    }
    .card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .media-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      position: relative;
    }
    .media-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-focus);
      box-shadow: var(--shadow-hover);
    }
    .media-thumb-wrap {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #0d121f;
    }
    .media-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-thumb-wrap img {
      transform: scale(1.05);
    }
    .badge-top-left {
      position: absolute;
      top: 10px;
      left: 10px;
      padding: 3px 8px;
      font-size: 0.7rem;
      font-weight: 700;
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(4px);
      border-radius: 4px;
      color: #fff;
    }
    .badge-top-right {
      position: absolute;
      top: 10px;
      right: 10px;
      padding: 3px 8px;
      font-size: 0.7rem;
      font-weight: 800;
      background: rgba(245, 158, 11, 0.9);
      border-radius: 4px;
      color: #090d16;
    }
    .media-content {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
      justify-content: space-between;
    }
    .media-title {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .media-meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.78rem;
      color: var(--text-dark);
      margin-bottom: 12px;
    }
    .media-specs {
      display: flex;
      flex-wrap: wrap;
      gap: 4px;
      margin-bottom: 14px;
    }
    .spec-pill {
      font-size: 0.7rem;
      background: rgba(255, 255, 255, 0.05);
      padding: 2px 6px;
      border-radius: 4px;
      color: var(--text-muted);
    }
    .card-action-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-subtle);
      padding-top: 10px;
    }
    .btn-play-stream {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.78rem;
      color: var(--accent-gold);
      font-weight: 600;
    }
    .btn-play-stream:hover {
      color: #fff;
    }
    .bitrate-indicator {
      font-size: 0.72rem;
      color: var(--accent-pink);
      font-weight: 600;
    }

    /* 4. 分页控制 */
    .pagination-section {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 32px;
      flex-wrap: wrap;
      gap: 16px;
    }
    .pagination-info {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .pagination-ctrls {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .page-num-btn {
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
      font-size: 0.85rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .page-num-btn:hover {
      background: rgba(255, 255, 255, 0.1);
      color: var(--text-main);
}
    .page-num-btn.active {
      background: var(--primary-gradient);
      border-color: transparent;
      color: #fff;
    }

    /* 5. 热门排行 Top 5 */
    .trending-list-box {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .trending-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 8px;
    }
    .trending-header h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .trending-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 14px 20px;
      transition: var(--transition);
      gap: 16px;
    }
    .trending-row:hover {
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(245, 158, 11, 0.3);
      transform: translateX(4px);
    }
    .trend-left {
      display: flex;
      align-items: center;
      gap: 16px;
      flex: 1;
      min-width: 0;
    }
    .trend-rank {
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      font-weight: 800;
      font-size: 0.85rem;
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-muted);
      flex-shrink: 0;
    }
    .trend-rank.top-1 {
      background: var(--primary-gradient);
      color: #fff;
    }
    .trend-rank.top-2 {
      background: #f59e0b;
      color: #090d16;
    }
    .trend-rank.top-3 {
      background: #be185d;
      color: #fff;
    }
    .trend-title {
      font-weight: 600;
      font-size: 0.92rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .trend-specs {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.78rem;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    /* 6. 解码指南双列卡片 */
    .codec-guide-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 16px;
    }
    .codec-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .codec-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .codec-tag {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(245, 158, 11, 0.1);
      color: var(--accent-gold);
      border: 1px solid rgba(245, 158, 11, 0.2);
    }
    .codec-card h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .codec-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .codec-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 6px;
    }
    .codec-points li {
      font-size: 0.8rem;
      color: var(--text-dark);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .codec-points li::before {
      content: "";
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--accent-gold);
    }

    /* 7. 跨类目导航卡 */
    .cross-cat-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 16px;
    }
    .cross-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .cross-card:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(245, 158, 11, 0.35);
      transform: translateY(-2px);
    }
    .cross-info h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .cross-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .cross-icon-arrow {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-gold);
      font-weight: 700;
      flex-shrink: 0;
    }

    /* 通用页脚 */
    .site-footer {
      margin-top: auto;
      background: #060910;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 30px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-dark);
      line-height: 1.7;
      max-width: 380px;
    }
    .footer-col h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .footer-col a:hover {
      color: var(--accent-gold);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      color: var(--text-dark);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式适配 */
    @media (max-width: 1120px) {
      .card-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 900px) {
      .page-layout {
        flex-direction: column;
      }
      .sidebar-doc {
        width: 100%;
        position: static;
      }
      .card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .codec-guide-grid,
      .cross-cat-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 640px) {
      .header-nav {
        height: auto;
        padding: 14px 0;
      }
      .nav-inner {
        flex-wrap: wrap;
      }
      .nav-search {
        order: 3;
        max-width: 100%;
        width: 100%;
      }
      .nav-links {
        display: none;
      }
      .card-grid {
        grid-template-columns: 1fr;
      }
      .trending-row {
        flex-direction: column;
        align-items: flex-start;
      }
      .trend-specs {
        align-self: flex-end;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }

/* roulang page: category3 */
:root {
    --bg-main: #090d16;
    --bg-surface: #131b2e;
    --bg-card: rgba(26, 37, 60, 0.75);
    --bg-glass: rgba(15, 23, 42, 0.85);
    --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 40%, #be185d 100%);
    --accent-gold: #f59e0b;
    --accent-pink: #be185d;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #64748b;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(245, 158, 11, 0.45);
    --radius-xl: 20px;
    --radius-md: 12px;
    --radius-full: 9999px;
    --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.55);
    --shadow-hover: 0 16px 36px -4px rgba(245, 158, 11, 0.15);
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
  }
  body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at 50% 0%, #17233f 0%, #090d16 65%);
    background-attachment: fixed;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  .container {
    width: 100%;
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 24px;
  }
  /* 顶部导航 */
  .header-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
    height: 72px;
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 20px;
  }
  .brand-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }
  .brand-logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
  }
  .brand-badge {
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--accent-gold);
    font-weight: 600;
  }
  .nav-search {
    flex: 1;
    max-width: 480px;
    position: relative;
  }
  .nav-search input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    padding: 9px 40px 9px 16px;
    border-radius: var(--radius-full);
    color: var(--text-main);
    font-size: 0.88rem;
    outline: none;
    transition: var(--transition);
  }
  .nav-search input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
  }
  .nav-search .search-key {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 2px 6px;
    color: var(--text-muted);
    pointer-events: none;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 16px;
    list-style: none;
    flex-shrink: 0;
  }
  .nav-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-md);
  }
  .nav-links a:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
  }
  .nav-links a.active {
    color: var(--accent-gold);
    background: rgba(255, 255, 255, 0.06);
    border-bottom: 2px solid var(--accent-gold);
    border-radius: 4px 4px 0 0;
  }
  .btn-action {
    background: var(--primary-gradient);
    color: #fff;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 9px 18px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .btn-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
  }

  /* 页面布局与主容器 */
  .category-layout {
    display: flex;
    gap: 32px;
    padding: 40px 0 80px 0;
  }
  .doc-sidebar {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .sticky-panel {
    position: sticky;
    top: 96px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-card);
  }
  .doc-nav-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .doc-tree-group {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .doc-tree-group li a {
    display: block;
    padding: 8px 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-radius: 8px;
    border-left: 2px solid transparent;
  }
  .doc-tree-group li a:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
  }
  .doc-tree-group li a.active {
    color: #fff;
    background: rgba(245, 158, 11, 0.1);
    border-left: 2px solid var(--accent-gold);
    font-weight: 600;
  }
  .main-stream {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 48px;
  }

  /* 通用板块与圆角大卡 */
  .section-box {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
  }
  .section-box:hover {
    border-color: rgba(245, 158, 11, 0.25);
  }
  .section-header {
    margin-bottom: 24px;
  }
  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-gold);
    margin-bottom: 8px;
  }
  .section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.3;
  }
  .section-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.6;
  }

  /* 板块1：分类专属标头区 (Taxonomy H1) */
  .category-hero {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-card);
    position: relative;
  }
  .hero-taxonomy-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-full);
    color: var(--accent-gold);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 16px;
  }
  h1.category-h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.25;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 60%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
  }
  .category-intro {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 820px;
    line-height: 1.7;
    margin-bottom: 24px;
  }
  .hero-meta-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
  }
  .meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    padding: 6px 14px;
    font-size: 0.82rem;
    color: var(--text-main);
  }
  .meta-pill strong {
    color: var(--accent-gold);
  }

  /* 板块2：多维属性筛选控制台 (Facet & Filter Bar) */
  .filter-panel {
    background: rgba(19, 27, 46, 0.85);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 24px 30px;
    display: flex;
    flex-direction: column;
    gap: 18px;
  }
  .filter-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }
  .filter-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dark);
    min-width: 72px;
  }
  .filter-options {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }
  .filter-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    padding: 5px 14px;
    font-size: 0.82rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
  }
  .filter-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.2);
  }
  .filter-btn.active {
    background: var(--primary-gradient);
    color: #ffffff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
  }

  /* 板块3：核心影视卡片网格 (Main Media Grid) */
  .media-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .media-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
  }
  .media-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: var(--shadow-hover);
  }
  .card-poster {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #0f172a;
  }
  .card-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }
  .media-card:hover .card-poster img {
    transform: scale(1.05);
  }
  .poster-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(9, 13, 22, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    padding: 3px 8px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-gold);
  }
  .rating-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: var(--primary-gradient);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  }
  .card-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }
  .card-director {
    font-size: 0.78rem;
    color: var(--accent-gold);
    font-weight: 600;
    margin-bottom: 4px;
  }
  .card-title {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 8px;
  }
  .card-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-dark);
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }
  .card-btn {
    margin-top: 12px;
    width: 100%;
    padding: 8px 0;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
  }
  .media-card:hover .card-btn {
    background: var(--primary-gradient);
    border-color: transparent;
    color: #ffffff;
  }

  /* 板块4：分页与加载控制 (Pagination) */
  .pagination-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(19, 27, 46, 0.7);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 16px 24px;
    flex-wrap: wrap;
    gap: 16px;
  }
  .page-stats {
    font-size: 0.85rem;
    color: var(--text-muted);
  }
  .page-stats strong {
    color: var(--accent-gold);
  }
  .page-nav {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
  }
  .page-link:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.1);
  }
  .page-link.active {
    background: var(--primary-gradient);
    color: #ffffff;
    border-color: transparent;
  }

  /* 板块5：热门榜单 (Category Top Trending) */
  .trending-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .trending-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 16px 20px;
    transition: var(--transition);
  }
  .trending-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(245, 158, 11, 0.3);
    transform: translateX(4px);
  }
  .trend-left {
    display: flex;
    align-items: center;
    gap: 16px;
  }
  .trend-rank {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-muted);
  }
  .trend-item:nth-child(1) .trend-rank {
    background: var(--primary-gradient);
    color: #ffffff;
  }
  .trend-item:nth-child(2) .trend-rank {
    background: rgba(245, 158, 11, 0.25);
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
  }
  .trend-item:nth-child(3) .trend-rank {
    background: rgba(190, 24, 93, 0.25);
    color: #f472b6;
    border: 1px solid #f472b6;
  }
  .trend-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
  }
  .trend-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
  }
  .trend-right {
    display: flex;
    align-items: center;
    gap: 16px;
  }
  .badge-bitrate {
    font-size: 0.75rem;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: var(--accent-gold);
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
  }
  .trend-count {
    font-size: 0.82rem;
    color: var(--text-dark);
  }

  /* 板块6：播放指南微板块 (Playback Troubleshooting) */
  .playback-guide-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .guide-card {
    background: rgba(19, 27, 46, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 24px;
  }
  .guide-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 10px;
  }
  .guide-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
  }
  .guide-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .guide-card ul li {
    font-size: 0.82rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .guide-card ul li::before {
    content: "•";
    color: var(--accent-gold);
    font-weight: bold;
  }

  /* 板块7：相关分类跨链导航 (Cross-Category Anchors) */
  .cross-category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .cross-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.4) 0%, rgba(15, 23, 42, 0.7) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
  }
  .cross-card:hover {
    transform: translateY(-3px);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: var(--shadow-hover);
  }
  .cross-eyebrow {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .cross-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
  }
  .cross-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
  }
  .cross-link-btn {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 8px;    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
  }
  .cross-card:hover .cross-link-btn {
    background: var(--primary-gradient);
    border-color: transparent;
    color: #ffffff;
  }

  /* 通用页脚 */
  .site-footer {
    background: #060911;
    border-top: 1px solid var(--border-subtle);
    padding: 64px 0 32px 0;
    margin-top: auto;
  }
  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
  }
  .footer-brand h3 {
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 14px;
  }
  .footer-brand p {
    font-size: 0.86rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 360px;
  }
  .footer-col h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  .footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .footer-col ul a {
    font-size: 0.85rem;
    color: var(--text-dark);
  }
  .footer-col ul a:hover {
    color: var(--accent-gold);
  }
  .footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-dark);
    flex-wrap: wrap;
    gap: 12px;
  }

  /* 响应式断点控制 */
  @media (max-width: 1024px) {
    .doc-sidebar {
      display: none;
    }
    .media-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    .footer-top {
      grid-template-columns: 1fr 1fr;
    }
  }
  @media (max-width: 768px) {
    .header-nav {
      height: auto;
      padding: 12px 0;
    }
    .nav-inner {
      flex-wrap: wrap;
    }
    .nav-search {
      order: 3;
      max-width: 100%;
      width: 100%;
    }
    .media-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }
    .category-hero {
      padding: 24px;
    }
    h1.category-h1 {
      font-size: 1.6rem;
    }
    .playback-guide-grid,
    .cross-category-grid {
      grid-template-columns: 1fr;
    }
    .footer-top {
      grid-template-columns: 1fr;
      gap: 32px;
    }
  }
  @media (max-width: 520px) {
    .media-grid {
      grid-template-columns: 1fr;
    }
    .filter-panel {
      padding: 16px;
    }
    .section-box {
      padding: 20px;
    }
    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }
  }