/* roulang page: index */
:root {
      --primary-dark: #0F2D1F;
      --primary-green: #1B4332;
      --accent-gold: #C9A227;
      --accent-copper: #DDA15E;
      --bg-light: #F7F8F6;
      --bg-card: #FFFFFF;
      --bg-alt: #EDF0EC;
      --text-main: #111827;
      --text-muted: #374151;
      --text-light: #6B7280;
      --border-green: rgba(27, 67, 50, 0.12);
      --border-gold: rgba(201, 162, 39, 0.35);
      --shadow-sm: 0 4px 16px rgba(15, 45, 31, 0.06);
      --shadow-hover: 0 8px 24px rgba(15, 45, 31, 0.12);
      --radius: 6px;
      --transition: all 0.25s ease-in-out;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary-green);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--accent-gold);
    }

    /* 顶部促销公告条 */
    .top-announcement-bar {
      background: linear-gradient(90deg, #0F2D1F 0%, #1B4332 50%, #0F2D1F 100%);
      color: #F7F8F6;
      font-size: 0.82rem;
      padding: 7px 0;
      border-bottom: 1px solid var(--border-gold);
    }
    .top-announcement-bar .badge-gold {
      background: var(--accent-gold);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 3px;
      margin-right: 8px;
    }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-green);
    }
    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo .brand-icon {
      background: var(--primary-green);
      color: var(--accent-gold);
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      border: 1px solid var(--accent-gold);
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 24px;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text-main);
      padding: 6px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a.active, .nav-links a:hover {
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.05);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent-gold);
    }
    .nav-search-box {
      display: flex;
      align-items: center;
      background: var(--bg-light);
      border: 1px solid var(--border-green);
      border-radius: 4px;
      padding: 2px 8px;
    }
    .nav-search-box input {
      border: none;
      background: transparent;
      margin: 0;
      box-shadow: none;
      font-size: 0.88rem;
      width: 140px;
      height: 32px;
    }
    .nav-search-box input:focus {
      background: transparent;
      box-shadow: none;
    }
    .nav-search-box button {
      background: transparent;
      border: none;
      color: var(--text-light);
      cursor: pointer;
      padding: 0 4px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-gold-action {
      background: linear-gradient(135deg, var(--accent-gold) 0%, #B88E1F 100%);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 2px 6px rgba(201, 162, 39, 0.3);
      border: none;
      cursor: pointer;
    }
    .btn-gold-action:hover {
      background: linear-gradient(135deg, #DEB834 0%, var(--accent-gold) 100%);
      color: #0F2D1F;
      transform: translateY(-1px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
    }

    /* 通用板块与排版 */
    .content-section {
      padding: 4.5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #F7F8F6;
    }
    .section-heading-wrap {
      margin-bottom: 2.8rem;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.08);
      padding: 3px 12px;
      border-radius: 4px;
      margin-bottom: 10px;
      border-left: 3px solid var(--accent-gold);
    }
    .section-dark .section-tag {
      background: rgba(201, 162, 39, 0.15);
      color: var(--accent-gold);
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #F7F8F6;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #D1D5DB;
    }

    /* 1. Hero 会员俱乐部黑金感首屏 */
    .hero-club-section {
      background: radial-gradient(circle at 80% 20%, #1B4332 0%, #0F2D1F 70%);
      color: #F7F8F6;
      padding: 5rem 0 4.5rem;
      position: relative;
      border-bottom: 2px solid var(--accent-gold);
    }
    .hero-h1-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(201, 162, 39, 0.15);
      border: 1px solid var(--border-gold);
      color: var(--accent-gold);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .hero-main-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
    }
    .hero-main-title span {
      color: var(--accent-gold);
      text-shadow: 0 0 20px rgba(201, 162, 39, 0.3);
    }
    .hero-paragraph {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #E5E7EB;
      margin-bottom: 2rem;
      max-width: 680px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
      margin-bottom: 2rem;
    }
    .btn-hero-primary {
      background: linear-gradient(135deg, var(--accent-gold) 0%, #A88319 100%);
      color: #0F2D1F;
      font-weight: 800;
      font-size: 1.05rem;
      padding: 13px 28px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
    }
    .btn-hero-primary:hover {
      background: #DEB834;
      color: #0F2D1F;
    }
    .btn-hero-outline {
      border: 1px solid var(--border-gold);
      color: #F7F8F6;
      font-weight: 600;
      padding: 13px 24px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-hero-outline:hover {
      background: rgba(201, 162, 39, 0.1);
      color: var(--accent-gold);
    }
    .hero-vip-badge-card {
      background: rgba(15, 45, 31, 0.6);
      border: 1px solid var(--border-gold);
      border-radius: 8px;
      padding: 24px;
      backdrop-filter: blur(10px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    }
    .vip-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(201, 162, 39, 0.2);
      padding-bottom: 14px;
      margin-bottom: 16px;
    }
    .vip-status-label {
      font-size: 0.85rem;
      color: var(--accent-gold);
      text-transform: uppercase;
      font-weight: 700;
      letter-spacing: 1px;
    }
    .vip-metrics-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .vip-metric-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 4px;
      padding: 12px;
    }
    .vip-metric-num {
      font-size: 1.6rem;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1;
      font-family: monospace;
    }
    .vip-metric-num small {
      font-size: 0.75rem;
      color: var(--accent-copper);
    }
    .vip-metric-desc {
      font-size: 0.78rem;
      color: #9CA3AF;
      margin-top: 5px;
    }

    /* 2. 实时流媒体监控看板板块 */
    .metrics-board-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-board-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }
    .metric-board-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary-green);
    }
    .metric-board-card.highlight::before {
      background: var(--accent-gold);
    }
    .board-card-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-light);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .board-card-value {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
      font-family: monospace;
    }
    .board-card-foot {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-top: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .tag-trend-up {
      color: #10B981;
      font-weight: 700;
    }

    /* 3. 核心服务矩阵卡片 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 28px 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .matrix-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-gold);
    }
    .matrix-icon-wrap {
      width: 48px;
      height: 48px;
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 18px;
    }
    .matrix-card-title {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .matrix-card-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 性能跑分对比评估 */
    .benchmark-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
    }
    .benchmark-table th {
      background: var(--primary-green);
      color: #FFFFFF;
      font-size: 0.95rem;
      font-weight: 700;
      padding: 16px 20px;
      text-align: left;
    }
    .benchmark-table th.col-highlight {
      background: var(--primary-dark);
      color: var(--accent-gold);
      border-left: 2px solid var(--accent-gold);
      border-right: 2px solid var(--accent-gold);
    }
    .benchmark-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(27, 67, 50, 0.08);
      font-size: 0.92rem;
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .benchmark-table td.col-highlight {
      background: rgba(201, 162, 39, 0.05);
      font-weight: 700;
      color: var(--primary-green);
      border-left: 2px solid var(--accent-gold);
      border-right: 2px solid var(--accent-gold);
    }

    /* 5. 技术演进里程碑 */
    .timeline-milestones {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px 0;
    }
    .timeline-milestones::before {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: var(--border-gold);
      transform: translateX(-50%);
    }
    .milestone-item {
      position: relative;
      margin-bottom: 30px;
      width: 50%;
      box-sizing: border-box;
    }
    .milestone-item:nth-child(odd) {
      left: 0;
      padding-right: 35px;
      text-align: right;
    }
    .milestone-item:nth-child(even) {
      left: 50%;
      padding-left: 35px;
      text-align: left;
    }
    .milestone-dot {
      position: absolute;
      top: 15px;
      width: 16px;
      height: 16px;
      background: var(--accent-gold);
      border: 3px solid var(--primary-dark);
      border-radius: 50%;
      z-index: 2;
    }
    .milestone-item:nth-child(odd) .milestone-dot {
      right: -8px;
    }
    .milestone-item:nth-child(even) .milestone-dot {
      left: -8px;
    }
    .milestone-box {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      padding: 18px 22px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      display: inline-block;
      text-align: left;
    }
    .milestone-phase {
      font-size: 0.78rem;
      font-weight: 800;
      color: var(--accent-gold);
      text-transform: uppercase;
    }
    .milestone-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 4px 0 6px;
    }
    .milestone-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 6. 热度榜单看板 */
    .leaderboard-container {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .leaderboard-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-green);
    }
    .panel-header h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin: 0;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .panel-header .badge-tag {
      font-size: 0.75rem;
      background: rgba(201, 162, 39, 0.15);
      color: #936F0F;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 700;
    }
    .rank-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .rank-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(27, 67, 50, 0.08);
      font-size: 0.92rem;
    }
    .rank-item:last-child {
      border-bottom: none;
    }
    .rank-left {
      display: flex;
      align-items: center;
      gap: 12px;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }
    .rank-index {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--bg-alt);
      color: var(--text-light);
      font-weight: 800;
      font-size: 0.8rem;
      border-radius: 4px;
      flex-shrink: 0;
    }
    .rank-item:nth-child(1) .rank-index {
      background: var(--accent-gold);
      color: #0F2D1F;
    }
    .rank-item:nth-child(2) .rank-index {
      background: #94A3B8;
      color: #FFFFFF;
    }
    .rank-item:nth-child(3) .rank-index {
      background: #B45309;
      color: #FFFFFF;
    }
    .rank-score {
      font-family: monospace;
      font-weight: 700;
      color: var(--primary-green);
      font-size: 0.95rem;
    }

    /* 7. CMS 动态资讯列表 */
    .cms-feed-layout {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }
    .cms-feed-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .cms-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .cms-card:hover {
      border-color: var(--accent-gold);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .cms-meta-line {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.82rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .cms-category-pill {
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 3px;
    }
    .cms-card-title {
      font-size: 1.18rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .cms-card-title a {
      color: inherit;
    }
    .cms-card-title a:hover {
      color: var(--primary-green);
    }
    .cms-card-excerpt {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 12px;
    }
    .cms-read-link {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary-green);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .cms-sidebar {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .feed-sidebar-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }
    .feed-more-wrap {
      text-align: center;
      margin-top: 30px;
    }
    .btn-more-category {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary-green);
      color: #FFFFFF;
      padding: 12px 28px;
      font-weight: 700;
      border-radius: 4px;
    }
    .btn-more-category:hover {
      background: var(--primary-dark);
      color: var(--accent-gold);
    }

    /* 8. 专区入口枢纽 */
    .portal-hub-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .portal-hub-card {
      background: linear-gradient(135deg, #1B4332 0%, #0F2D1F 100%);
      border: 1px solid var(--border-gold);
      border-radius: 8px;
      padding: 36px;
      color: #F7F8F6;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .portal-hub-card::after {
      content: "";
      position: absolute;
      right: -20px;
      bottom: -20px;
      width: 140px;
      height: 140px;
      background: radial-gradient(circle, rgba(201, 162, 39, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .portal-badge {
      display: inline-block;
      background: var(--accent-gold);
      color: #0F2D1F;
      font-size: 0.8rem;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 3px;
      width: fit-content;
      margin-bottom: 16px;
    }
    .portal-title {
      font-size: 1.7rem;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .portal-desc {
      font-size: 0.95rem;
      color: #D1D5DB;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .portal-action-btn {
      background: #FFFFFF;
      color: var(--primary-dark);
      font-weight: 800;
      padding: 12px 24px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
    }
    .portal-action-btn:hover {
      background: var(--accent-gold);
      color: #0F2D1F;
    }

    /* 9. 安全体系 */
    .security-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .security-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .security-card-icon {
      width: 56px;
      height: 56px;
      background: rgba(201, 162, 39, 0.15);
      color: var(--primary-green);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin: 0 auto 18px;
    }
    .security-card h4 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
    }
    .security-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 10. 节点遥测 */
    .cdn-telemetry-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .telemetry-node-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius);
      padding: 20px;
    }
    .node-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
    }
    .node-title {
      font-size: 1rem;
      font-weight: 800;
      color: #FFFFFF;
    }
    .node-ping {
      font-size: 0.85rem;
      font-family: monospace;
      color: #10B981;
      font-weight: 700;
    }
    .node-status-bar {
      height: 6px;
      background: rgba(255, 255, 255, 0.15);
      border-radius: 3px;
      overflow: hidden;
      margin-bottom: 8px;
    }
    .node-status-fill {
      height: 100%;
      background: var(--accent-gold);
      border-radius: 3px;
    }
    .node-info-text {
      font-size: 0.78rem;
      color: #9CA3AF;
      display: flex;
      justify-content: space-between;
    }

    /* 11. 3步指引 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .step-number {
      font-size: 2.5rem;
      font-weight: 900;
      font-family: monospace;
      color: rgba(27, 67, 50, 0.15);
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-title {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--primary-dark);
    }
    .step-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.7;
    }

    /* 12. FAQ 折叠面板 */
    .faq-list-wrap {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-accordion-item {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question-btn {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-question-btn i {
      color: var(--accent-gold);
      transition: transform 0.3s ease;
    }
    .faq-answer-pane {
      padding: 0 22px 18px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px dashed rgba(27, 67, 50, 0.08);
      margin-top: 8px;
      padding-top: 14px;
    }

    /* 13. 极速特权转化表单 */
    .conversion-box {
      max-width: 780px;
      margin: 0 auto;
      background: #FFFFFF;
      border: 1px solid var(--border-gold);
      border-radius: 8px;
      padding: 36px;
      box-shadow: var(--shadow-hover);
    }
    .conversion-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }
    .conversion-form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .conversion-form-group label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .conversion-form-group select,
    .conversion-form-group input {
      height: 44px;
      border: 1px solid var(--border-green);
      border-radius: 4px;
      padding: 0 12px;
      font-size: 0.92rem;
      margin: 0;
    }
    .btn-submit-conversion {
      width: 100%;
      background: linear-gradient(135deg, var(--accent-gold) 0%, #A88319 100%);
      color: #0F2D1F;
      font-weight: 800;
      font-size: 1.05rem;
      padding: 14px;
      border-radius: 4px;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-submit-conversion:hover {
      background: #DEB834;
    }

    /* 页脚样式 */
    .site-footer {
      background: #091A12;
      color: #D1D5DB;
      padding: 4.5rem 0 2rem;
      border-top: 3px solid var(--accent-gold);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 3.5rem;
    }
    .footer-brand-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand-desc {
      font-size: 0.9rem;
      line-height: 1.8;
      color: #9CA3AF;
      margin-bottom: 16px;
    }
    .footer-col-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      border-left: 3px solid var(--accent-gold);
      padding-left: 10px;
    }
    .footer-links-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links-list a {
      color: #9CA3AF;
      font-size: 0.9rem;
    }
    .footer-links-list a:hover {
      color: var(--accent-gold);
    }
    .footer-server-status {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.85rem;
      color: #9CA3AF;
    }
    .status-badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot-green {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      font-size: 0.82rem;
      color: #6B7280;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }

    /* 移动端响应式断点适配 */
    @media (max-width: 1024px) {
      .metrics-board-container,
      .matrix-grid,
      .cdn-telemetry-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .main-nav-bar {
        height: 64px;
      }
      .nav-links, .nav-search-box, .btn-gold-action {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .mobile-drawer {
        display: none;
        background: #FFFFFF;
        padding: 20px;
        border-bottom: 2px solid var(--accent-gold);
      }
      .mobile-drawer.open {
        display: block;
      }
      .mobile-drawer a {
        display: block;
        padding: 10px 0;
        font-weight: 700;
        border-bottom: 1px solid var(--border-green);
      }
      .hero-main-title {
        font-size: 1.95rem;
      }
      .metrics-board-container,
      .matrix-grid,
      .leaderboard-container,
      .cms-feed-layout,
      .portal-hub-grid,
      .security-matrix,
      .cdn-telemetry-grid,
      .steps-grid,
      .conversion-form-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .timeline-milestones::before {
        left: 20px;
      }
      .milestone-item {
        width: 100%;
        left: 0 !important;
        padding-left: 45px !important;
        padding-right: 0 !important;
        text-align: left !important;
      }
      .milestone-item .milestone-dot {
        left: 12px !important;
      }
    }

/* roulang page: article */
:root {
      --primary-dark: #0F2D1F;
      --primary-green: #1B4332;
      --accent-gold: #C9A227;
      --accent-copper: #DDA15E;
      --bg-light: #F7F8F6;
      --bg-card: #FFFFFF;
      --bg-alt: #EDF0EC;
      --text-main: #111827;
      --text-muted: #374151;
      --text-light: #6B7280;
      --border-green: rgba(27, 67, 50, 0.12);
      --border-gold: rgba(201, 162, 39, 0.35);
      --shadow-sm: 0 4px 16px rgba(15, 45, 31, 0.06);
      --shadow-hover: 0 8px 24px rgba(15, 45, 31, 0.12);
      --radius: 6px;
      --transition: all 0.25s ease-in-out;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    a:hover, a:focus {
      color: var(--accent-gold);
    }

    .top-announcement-bar {
      background: var(--primary-dark);
      color: #E5E7EB;
      font-size: 0.82rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(201, 162, 39, 0.25);
    }

    .top-announcement-bar .badge-gold {
      background: var(--accent-gold);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 3px;
      margin-right: 8px;
    }

    .site-header {
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-green);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    .brand-logo .brand-icon {
      background: var(--primary-green);
      color: var(--accent-gold);
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      border: 1px solid var(--accent-gold);
      font-size: 1.1rem;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 24px;
    }

    .nav-links a {
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text-main);
      padding: 6px 12px;
      border-radius: 4px;
      position: relative;
    }

    .nav-links a.active, .nav-links a:hover {
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.05);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent-gold);
    }

    .nav-search-box {
      display: flex;
      align-items: center;
      background: var(--bg-light);
      border: 1px solid var(--border-green);
      border-radius: 4px;
      padding: 2px 8px;
    }

    .nav-search-box input {
      border: none;
      background: transparent;
      margin: 0;
      box-shadow: none;
      font-size: 0.88rem;
      width: 140px;
      height: 32px;
    }

    .nav-search-box input:focus {
      background: transparent;
      box-shadow: none;
    }

    .nav-search-box button {
      background: transparent;
      border: none;
      color: var(--text-light);
      cursor: pointer;
      padding: 0 4px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn-gold-action {
      background: linear-gradient(135deg, var(--accent-gold) 0%, #B88E1F 100%);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 2px 6px rgba(201, 162, 39, 0.3);
      border: none;
      cursor: pointer;
    }

    .btn-gold-action:hover {
      background: linear-gradient(135deg, #DEB834 0%, var(--accent-gold) 100%);
      color: #0F2D1F;
      transform: translateY(-1px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
    }

    .mobile-drawer {
      display: none;
      background: #FFFFFF;
      border-top: 1px solid var(--border-green);
      padding: 16px 20px 24px;
    }

    .mobile-drawer a {
      display: block;
      padding: 10px 0;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      border-bottom: 1px solid rgba(0,0,0,0.05);
    }

    /* 面包屑导航 */
    .breadcrumb-section {
      background: var(--bg-alt);
      border-bottom: 1px solid var(--border-green);
      padding: 12px 0;
      font-size: 0.88rem;
    }

    .breadcrumbs-list {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: var(--text-light);
    }

    .breadcrumbs-list li {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .breadcrumbs-list a {
      color: var(--text-muted);
    }

    .breadcrumbs-list a:hover {
      color: var(--primary-green);
    }

    .breadcrumbs-list .current-crumb {
      color: var(--primary-green);
      font-weight: 600;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 480px;
    }

    /* 文章头部元数据看板 */
    .article-header-board {
      background: var(--bg-card);
      border-bottom: 1px solid var(--border-green);
      padding: 2.5rem 0 2rem;
    }

    .article-badges-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      margin-bottom: 1rem;
    }

    .stream-tag {
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      border-left: 3px solid var(--accent-gold);
    }

    .meta-spec-chip {
      background: #F3F4F6;
      color: var(--text-muted);
      font-size: 0.78rem;
      padding: 3px 10px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .article-page-h1 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin: 0 0 1.25rem;
      letter-spacing: -0.5px;
    }

    .telemetry-meta-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 15px;
      padding-top: 1rem;
      border-top: 1px solid rgba(27, 67, 50, 0.08);
      font-size: 0.88rem;
      color: var(--text-light);
    }

    .meta-metrics-group {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .meta-metric-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .meta-metric-item strong {
      color: var(--primary-green);
      font-weight: 700;
    }

    /* 模拟播放器大容器 */
    .player-section {
      padding: 2rem 0 1rem;
    }

    .media-player-wrapper {
      background: #000000;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
      border: 1px solid rgba(27, 67, 50, 0.3);
      position: relative;
    }

    .player-ratio-box {
      position: relative;
      width: 100%;
      padding-top: 56.25%; /* 16:9 比例 */
      background: radial-gradient(circle at center, #1B4332 0%, #081710 80%);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .player-inner-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px;
      color: #FFFFFF;
    }

    .player-top-stats {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: rgba(15, 45, 31, 0.6);
      backdrop-filter: blur(8px);
      padding: 8px 16px;
      border-radius: 4px;
      border: 1px solid rgba(201, 162, 39, 0.2);
      font-size: 0.84rem;
    }

    .status-beacon {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #34D399;
      font-weight: 700;
    }

    .beacon-dot {
      width: 8px;
      height: 8px;
      background: #34D399;
      border-radius: 50%;
      box-shadow: 0 0 8px #34D399;
      animation: pulseDot 2s infinite;
    }

    @keyframes pulseDot {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.2); }
      100% { opacity: 1; transform: scale(1); }
    }

    .player-center-action {
      align-self: center;
      text-align: center;
      margin: auto 0;
    }

    .btn-stream-play {
      width: 84px;
      height: 84px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-gold) 0%, #A37F1B 100%);
      color: #0F2D1F;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 2.2rem;
      border: 3px solid rgba(255, 255, 255, 0.8);
      box-shadow: 0 0 30px rgba(201, 162, 39, 0.6);
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-stream-play:hover {
      transform: scale(1.08);
      background: #DEB834;
    }

    .player-stream-prompt {
      margin-top: 14px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #F7F8F6;
      text-shadow: 0 2px 4px rgba(0,0,0,0.8);
    }

    .player-bottom-controls {
      background: linear-gradient(transparent, rgba(15, 45, 31, 0.95));
      padding: 14px 18px 6px;
      border-radius: 0 0 6px 6px;
    }

    .stream-scrubber {
      width: 100%;
      height: 4px;
      background: rgba(255, 255, 255, 0.25);
      border-radius: 2px;
      margin-bottom: 12px;
      position: relative;
      cursor: pointer;
    }

    .stream-scrubber-progress {
      width: 46%;
      height: 100%;
      background: var(--accent-gold);
      border-radius: 2px;
    }

    .controls-actions-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.9rem;
    }

    .control-left-items, .control-right-items {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .control-item-btn {
      color: #F3F4F6;
      cursor: pointer;
      transition: var(--transition);
    }

    .control-item-btn:hover {
      color: var(--accent-gold);
    }

    .quality-badge {
      background: var(--primary-green);
      color: var(--accent-gold);
      border: 1px solid var(--accent-gold);
      padding: 2px 8px;
      border-radius: 3px;
      font-size: 0.76rem;
      font-weight: 700;
    }

    /* 正文阅读区与主侧布局 */
    .article-main-layout {
      padding: 2.5rem 0 4rem;
    }

    .content-read-card {
      background: var(--bg-card);
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 2.5rem 2.8rem;
      box-shadow: var(--shadow-sm);
    }

    .rich-text-wrapper {
      font-size: 1.05rem;
      line-height: 1.85;
      color: var(--text-muted);
    }

    .rich-text-wrapper h2 {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 2rem 0 1rem;
      padding-bottom: 8px;
      border-bottom: 2px solid rgba(27, 67, 50, 0.08);
      position: relative;
    }

    .rich-text-wrapper h2::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 50px;
      height: 2px;
      background: var(--accent-gold);
    }

    .rich-text-wrapper h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-green);
      margin: 1.5rem 0 0.8rem;
    }

    .rich-text-wrapper p {
      margin-bottom: 1.35rem;
    }

    .rich-text-wrapper blockquote {
      border-left: 4px solid var(--accent-gold);
      background: var(--bg-alt);
      margin: 1.5rem 0;
      padding: 1rem 1.4rem;
      font-style: normal;
      color: var(--text-main);
      border-radius: 0 4px 4px 0;
    }

    .rich-text-wrapper ul, .rich-text-wrapper ol {
      margin: 1.2rem 0 1.5rem 1.8rem;
      color: var(--text-muted);
    }

    .rich-text-wrapper li {
      margin-bottom: 0.5rem;
    }

    /* 空状态提示 */
    .empty-article-state {
      text-align: center;
      padding: 4rem 1rem;
    }

    .empty-icon {
      font-size: 3.5rem;
      color: var(--text-light);
      margin-bottom: 1.25rem;
    }

    .empty-article-state h3 {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .empty-article-state p {
      color: var(--text-light);
      margin-bottom: 1.8rem;
    }

    /* 参数矩阵卡片 */
    .spec-matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.8rem;
      margin-top: 2rem;
      box-shadow: var(--shadow-sm);
    }

    .spec-matrix-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 1.2rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .spec-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .spec-item {
      background: var(--bg-light);
      border: 1px solid rgba(27, 67, 50, 0.08);
      border-radius: 4px;
      padding: 10px 14px;
    }

    .spec-key {
      font-size: 0.76rem;
      color: var(--text-light);
      text-transform: uppercase;
      margin-bottom: 2px;
      display: block;
    }

    .spec-val {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 侧边推荐栏 */
    .article-sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .sidebar-widget {
      background: var(--bg-card);
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.5rem;
      box-shadow: var(--shadow-sm);
    }

    .widget-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary-dark);
      padding-bottom: 10px;
      border-bottom: 2px solid var(--accent-gold);
      margin-bottom: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .fast-node-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .fast-node-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 12px;
      border-radius: 4px;
      background: var(--bg-light);
      border: 1px solid rgba(27, 67, 50, 0.08);
      font-size: 0.88rem;
    }

    .fast-node-item .node-name {
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .fast-node-item .node-ping {
      font-family: monospace;
      font-weight: 700;
      color: #10B981;
      font-size: 0.82rem;
    }

    .sidebar-rec-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .sidebar-rec-item {
      border-bottom: 1px dashed rgba(27, 67, 50, 0.12);
      padding-bottom: 12px;
    }

    .sidebar-rec-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .sidebar-rec-item a {
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.45;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .sidebar-rec-item a:hover {
      color: var(--accent-gold);
    }

    .sidebar-rec-meta {
      font-size: 0.78rem;
      color: var(--text-light);
      margin-top: 5px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .interactive-share-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding: 1.25rem;
      background: var(--bg-light);
      border: 1px solid var(--border-green);
      border-radius: 4px;
      margin-top: 2rem;
    }

    .action-tools-group {
      display: flex;
      gap: 10px;
    }

    .btn-tool-action {
      background: #FFFFFF;
      border: 1px solid rgba(27, 67, 50, 0.2);
      padding: 7px 14px;
      border-radius: 4px;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--text-muted);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .btn-tool-action:hover {
      border-color: var(--accent-gold);
      color: var(--primary-green);
      background: #FDFCF8;
    }

    .compliance-callout-box {
      margin-top: 2rem;
      padding: 1.25rem 1.5rem;
      background: #FAF8F5;
      border-left: 4px solid var(--accent-copper);
      border-radius: 0 4px 4px 0;
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .compliance-callout-box strong {
      color: var(--primary-dark);
    }

    /* 底部通用规范 */
    .site-footer {
      background: var(--primary-dark);
      color: #D1D5DB;
      padding: 4rem 0 2rem;
      border-top: 3px solid var(--accent-gold);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 2.5rem;
    }

    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 0.8rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-brand-desc {
      font-size: 0.88rem;
      color: #9CA3AF;
      line-height: 1.7;
    }

    .footer-col-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.1rem;
      border-left: 3px solid var(--accent-gold);
      padding-left: 8px;
    }

    .footer-links-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-links-list li {
      margin-bottom: 8px;
    }

    .footer-links-list a {
      color: #9CA3AF;
      font-size: 0.88rem;
    }

    .footer-links-list a:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 1.8rem;
      text-align: center;
      font-size: 0.82rem;
      color: #6B7280;
    }

    @media (max-width: 1023px) {
      .mobile-menu-toggle {
        display: block;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .spec-grid {
        grid-template-columns: 1fr;
      }
      .content-read-card {
        padding: 1.8rem 1.5rem;
      }
    }

    @media (max-width: 639px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .article-page-h1 {
        font-size: 1.55rem;
      }
      .meta-metrics-group {
        flex-wrap: wrap;
        gap: 10px;
      }
      .interactive-share-bar {
        flex-direction: column;
        align-items: stretch;
      }
      .action-tools-group {
        justify-content: space-between;
      }
    }

/* roulang page: category1 */
:root {
      --primary-dark: #0F2D1F;
      --primary-green: #1B4332;
      --accent-gold: #C9A227;
      --accent-copper: #DDA15E;
      --bg-light: #F7F8F6;
      --bg-card: #FFFFFF;
      --bg-alt: #EDF0EC;
      --text-main: #111827;
      --text-muted: #374151;
      --text-light: #6B7280;
      --border-green: rgba(27, 67, 50, 0.12);
      --border-gold: rgba(201, 162, 39, 0.35);
      --shadow-sm: 0 4px 16px rgba(15, 45, 31, 0.06);
      --shadow-hover: 0 8px 24px rgba(15, 45, 31, 0.12);
      --radius: 6px;
      --transition: all 0.25s ease-in-out;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary-green);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--accent-gold);
    }

    .top-announcement-bar {
      background: var(--primary-green);
      color: #EDF0EC;
      font-size: 0.82rem;
      padding: 7px 0;
      border-bottom: 1px solid rgba(201, 162, 39, 0.2);
    }
    .top-announcement-bar .badge-gold {
      background: var(--accent-gold);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 3px;
      margin-right: 8px;
    }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-green);
    }
    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo .brand-icon {
      background: var(--primary-green);
      color: var(--accent-gold);
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      border: 1px solid var(--accent-gold);
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 24px;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text-main);
      padding: 6px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a.active, .nav-links a:hover {
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.05);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent-gold);
    }
    .nav-search-box {
      display: flex;
      align-items: center;
      background: var(--bg-light);
      border: 1px solid var(--border-green);
      border-radius: 4px;
      padding: 2px 8px;
    }
    .nav-search-box input {
      border: none;
      background: transparent;
      margin: 0;
      box-shadow: none;
      font-size: 0.88rem;
      width: 140px;
      height: 32px;
    }
    .nav-search-box input:focus {
      background: transparent;
      box-shadow: none;
    }
    .nav-search-box button {
      background: transparent;
      border: none;
      color: var(--text-light);
      cursor: pointer;
      padding: 0 4px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-gold-action {
      background: linear-gradient(135deg, var(--accent-gold) 0%, #B88E1F 100%);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 2px 6px rgba(201, 162, 39, 0.3);
      border: none;
      cursor: pointer;
    }
    .btn-gold-action:hover {
      background: linear-gradient(135deg, #DEB834 0%, var(--accent-gold) 100%);
      color: #0F2D1F;
      transform: translateY(-1px);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
    }

    /* 移动端抽屉 */
    .mobile-drawer {
      display: none;
      background: #FFFFFF;
      border-bottom: 2px solid var(--accent-gold);
      padding: 15px 20px;
    }
    .mobile-drawer a {
      display: block;
      padding: 10px 0;
      border-bottom: 1px solid rgba(0,0,0,0.05);
      font-weight: 600;
      color: var(--text-main);
    }

    /* 通用板块与排版 */
    .content-section {
      padding: 4.5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #F7F8F6;
    }
    .section-heading-wrap {
      margin-bottom: 2.5rem;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.08);
      padding: 3px 12px;
      border-radius: 4px;
      margin-bottom: 10px;
      border-left: 3px solid var(--accent-gold);
    }
    .section-dark .section-tag {
      background: rgba(201, 162, 39, 0.15);
      color: var(--accent-gold);
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #F7F8F6;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #D1D5DB;
    }

    /* 蓝图要求：Hero 为文档帮助中心居中搜索 + 热门问题 chips */
    .hero-search-center {
      background: radial-gradient(circle at 50% 30%, #1B4332 0%, #0F2D1F 85%);
      color: #FFFFFF;
      padding: 5rem 0 4rem;
      border-bottom: 2px solid var(--accent-gold);
      text-align: center;
    }
    .hero-h1-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(201, 162, 39, 0.15);
      border: 1px solid var(--border-gold);
      color: var(--accent-gold);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .hero-main-title {
      font-size: 2.6rem;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      line-height: 1.3;
    }
    .hero-main-title span {
      color: var(--accent-gold);
    }
    .hero-paragraph {
      font-size: 1.1rem;
      color: #E5E7EB;
      max-width: 820px;
      margin: 0 auto 2rem;
      line-height: 1.8;
    }
    .hero-search-bar-wrap {
      max-width: 680px;
      margin: 0 auto 1.5rem;
      display: flex;
      background: #FFFFFF;
      border-radius: 6px;
      overflow: hidden;
      box-shadow: 0 8px 30px rgba(0,0,0,0.3);
      border: 2px solid var(--accent-gold);
    }
    .hero-search-bar-wrap input {
      flex: 1;
      height: 52px;
      border: none;
      padding: 0 18px;
      font-size: 1rem;
      color: #111827;
      margin: 0;
      box-shadow: none;
    }
    .hero-search-bar-wrap input:focus {
      background: #FFFFFF;
      box-shadow: none;
    }
    .hero-search-bar-wrap button {
      background: var(--accent-gold);
      color: #0F2D1F;
      font-weight: 700;
      border: none;
      padding: 0 28px;
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-search-bar-wrap button:hover {
      background: #DEB834;
    }
    .hot-chips-row {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .hot-chip-label {
      font-size: 0.85rem;
      color: #9CA3AF;
      font-weight: 600;
    }
    .hot-chip-item {
      background: rgba(255, 255, 255, 0.1);
      color: #EDF0EC;
      font-size: 0.85rem;
      padding: 3px 12px;
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      transition: var(--transition);
    }
    .hot-chip-item:hover {
      background: rgba(201, 162, 39, 0.25);
      color: var(--accent-gold);
      border-color: var(--accent-gold);
    }

    /* 板块 2: 多维属性筛选矩阵面板 */
    .filter-panel-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }
    .filter-group {
      display: flex;
      align-items: baseline;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(27, 67, 50, 0.1);
    }
    .filter-group:last-child {
      border-bottom: none;
    }
    .filter-label {
      width: 100px;
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--primary-green);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .filter-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-btn {
      font-size: 0.85rem;
      padding: 3px 10px;
      border-radius: 4px;
      border: 1px solid transparent;
      color: var(--text-muted);
      cursor: pointer;
      background: transparent;
      transition: var(--transition);
    }
    .filter-btn.active, .filter-btn:hover {
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      font-weight: 600;
      border-color: var(--border-green);
    }
    .filter-btn.active {
      background: var(--primary-green);
      color: #FFFFFF;
    }

    /* 板块 3: 专区核心画质与解析卖点卡片 (精英赛事指标风) */
    .spec-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      height: 100%;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .spec-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-gold);
    }
    .spec-icon-box {
      width: 48px;
      height: 48px;
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.25rem;
      border: 1px solid var(--border-green);
    }
    .spec-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.6rem;
    }
    .spec-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1rem;
      flex-grow: 1;
    }
    .spec-metric-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent-gold);
      background: #0F2D1F;
      padding: 4px 10px;
      border-radius: 4px;
      width: fit-content;
    }

    /* 板块 4: 专区支持的编码解码与画质规格基准表 */
    .codec-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .codec-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
      font-size: 0.92rem;
    }
    .codec-table th {
      background: var(--primary-green);
      color: #FFFFFF;
      padding: 14px 18px;
      font-weight: 700;
      text-align: left;
      border: none;
    }
    .codec-table td {
      padding: 14px 18px;
      color: var(--text-muted);
      border-bottom: 1px solid rgba(27, 67, 50, 0.08);
      background: #FFFFFF;
    }
    .codec-table tr:hover td {
      background: #F9FAF8;
    }
    .codec-badge {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 3px;
      font-size: 0.75rem;
      font-weight: 700;
    }
    .badge-av1 { background: rgba(201, 162, 39, 0.2); color: #8A6D05; }
    .badge-hevc { background: rgba(27, 67, 50, 0.15); color: var(--primary-green); }
    .badge-h264 { background: rgba(107, 114, 128, 0.15); color: #4B5563; }

    /* 板块 5: CMS 动态资讯与原画更新流 */
    .post-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.5rem;
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .post-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-gold);
    }
    .post-meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 0.8rem;
      font-size: 0.82rem;
    }
    .post-category-badge {
      background: rgba(27, 67, 50, 0.08);
      color: var(--primary-green);
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 3px;
    }
    .post-date {
      color: var(--text-light);
    }
    .post-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.6rem;
      line-height: 1.4;
    }
    .post-card-title a {
      color: var(--text-main);
    }
    .post-card-title a:hover {
      color: var(--accent-gold);
    }
    .post-card-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .post-card-link {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary-green);
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .post-card-link:hover {
      color: var(--accent-gold);
    }
    .no-updates-box {
      background: #FFFFFF;
      border: 1px dashed var(--border-green);
      padding: 3rem;
      text-align: center;
      border-radius: var(--radius);
      color: var(--text-light);
      font-size: 0.95rem;
    }

    /* 板块 6: 播放线路连通性与流媒体诊断看板 */
    .telemetry-node-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius);
      padding: 1.25rem;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .telemetry-node-card:hover {
      border-color: var(--accent-gold);
      background: rgba(255, 255, 255, 0.09);
    }
    .node-info-block h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin: 0 0 4px;
    }
    .node-info-block p {
      font-size: 0.82rem;
      color: #9CA3AF;
      margin: 0;
    }
    .node-status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
    }
    .node-green { background: rgba(34, 197, 94, 0.2); color: #4ADE80; }
    .node-gold { background: rgba(201, 162, 39, 0.2); color: var(--accent-gold); }

    /* 板块 7: 专区常见问答 (FAQ Accordion) */
    .faq-item-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.5rem 1.8rem;
      margin-bottom: 1.25rem;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 0.6rem;
    }
    .faq-question i {
      color: var(--accent-gold);
      font-size: 1.1rem;
      margin-top: 4px;
    }
    .faq-answer {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.8;
      padding-left: 28px;
    }

    /* 板块 8: 专区直通极速激活 CTA 板块 */
    .access-action-card {
      background: radial-gradient(circle at 10% 50%, #1B4332 0%, #0F2D1F 80%);
      border: 2px solid var(--accent-gold);
      border-radius: var(--radius);
      padding: 3rem;
      color: #FFFFFF;
      box-shadow: 0 10px 30px rgba(15, 45, 31, 0.25);
    }
    .access-action-title {
      font-size: 2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1rem;
    }
    .access-action-desc {
      font-size: 1.05rem;
      color: #E5E7EB;
      margin-bottom: 2rem;
      line-height: 1.75;
    }

    /* 页脚统一规范 */
    .site-footer {
      background: var(--primary-dark);
      color: #D1D5DB;
      padding: 4.5rem 0 2rem;
      border-top: 3px solid var(--accent-gold);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 1.25rem;
    }
    .footer-brand-desc {
      font-size: 0.88rem;
      line-height: 1.8;
      color: #9CA3AF;
    }
    .footer-col-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col-heading::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--accent-gold);    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 9px;
    }
    .footer-links-list a {
      color: #9CA3AF;
      font-size: 0.88rem;
    }
    .footer-links-list a:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 1.8rem;
      text-align: center;
      font-size: 0.82rem;
      color: #6B7280;
    }

    @media screen and (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }
      .hero-main-title {
        font-size: 2.2rem;
      }
    }

    @media screen and (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .filter-group {
        flex-direction: column;
        gap: 8px;
      }
      .hero-search-bar-wrap {
        flex-direction: column;
        background: transparent;
        box-shadow: none;
        border: none;
      }
      .hero-search-bar-wrap input {
        border-radius: 4px;
        margin-bottom: 8px;
        background: #FFFFFF;
        width: 100%;
      }
      .hero-search-bar-wrap button {
        border-radius: 4px;
        height: 48px;
        justify-content: center;
        width: 100%;
      }
      .hero-main-title {
        font-size: 1.8rem;
      }
      .access-action-card {
        padding: 1.8rem 1.2rem;
      }
      .telemetry-node-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
    }

/* roulang page: category2 */
:root {
      --primary-dark: #0F2D1F;
      --primary-green: #1B4332;
      --accent-gold: #C9A227;
      --accent-copper: #DDA15E;
      --bg-light: #F7F8F6;
      --bg-card: #FFFFFF;
      --bg-alt: #EDF0EC;
      --text-main: #111827;
      --text-muted: #374151;
      --text-light: #6B7280;
      --border-green: rgba(27, 67, 50, 0.12);
      --border-gold: rgba(201, 162, 39, 0.35);
      --shadow-sm: 0 4px 16px rgba(15, 45, 31, 0.06);
      --shadow-hover: 0 8px 24px rgba(15, 45, 31, 0.12);
      --radius: 6px;
      --transition: all 0.25s ease-in-out;
    }

    *, *::before, *::after {
      box-sizing: border-box;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary-green);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--accent-gold);
    }

    /* 顶部公告条 */
    .top-announcement-bar {
      background: var(--primary-dark);
      color: #E5E7EB;
      font-size: 0.82rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(201, 162, 39, 0.25);
    }
    .top-announcement-bar .badge-gold {
      background: var(--accent-gold);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 3px;
      margin-right: 8px;
    }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-green);
    }
    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo .brand-icon {
      background: var(--primary-green);
      color: var(--accent-gold);
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      border: 1px solid var(--accent-gold);
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 24px;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text-main);
      padding: 6px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a.active, .nav-links a:hover {
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.05);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent-gold);
    }
    .nav-search-box {
      display: flex;
      align-items: center;
      background: var(--bg-light);
      border: 1px solid var(--border-green);
      border-radius: 4px;
      padding: 2px 8px;
    }
    .nav-search-box input {
      border: none;
      background: transparent;
      margin: 0;
      box-shadow: none;
      font-size: 0.88rem;
      width: 140px;
      height: 32px;
    }
    .nav-search-box input:focus {
      background: transparent;
      box-shadow: none;
    }
    .nav-search-box button {
      background: transparent;
      border: none;
      color: var(--text-light);
      cursor: pointer;
      padding: 0 4px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-gold-action {
      background: linear-gradient(135deg, var(--accent-gold) 0%, #B88E1F 100%);
      color: #0F2D1F;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 2px 6px rgba(201, 162, 39, 0.3);
      border: none;
      cursor: pointer;
    }
    .btn-gold-action:hover {
      background: linear-gradient(135deg, #DEB834 0%, var(--accent-gold) 100%);
      color: #0F2D1F;
      transform: translateY(-1px);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
    }
    .mobile-drawer {
      display: none;
      background: #FFFFFF;
      padding: 16px;
      border-bottom: 2px solid var(--accent-gold);
    }
    .mobile-drawer.open {
      display: block;
    }
    .mobile-drawer a {
      display: block;
      padding: 10px 0;
      border-bottom: 1px solid rgba(0,0,0,0.05);
      font-weight: 600;
      color: var(--text-main);
    }

    /* 通用板块与排版 */
    .content-section {
      padding: 4.5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #F7F8F6;
    }
    .section-heading-wrap {
      margin-bottom: 2.8rem;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary-green);
      background: rgba(27, 67, 50, 0.08);
      padding: 3px 12px;
      border-radius: 4px;
      margin-bottom: 10px;
      border-left: 3px solid var(--accent-gold);
    }
    .section-dark .section-tag {
      background: rgba(201, 162, 39, 0.15);
      color: var(--accent-gold);
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #F7F8F6;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #D1D5DB;
    }

    /* 分类页定制 Hero：杂志分栏首屏 */
    .category-editorial-hero {
      background: radial-gradient(circle at 85% 15%, #1B4332 0%, #0F2D1F 80%);
      color: #FFFFFF;
      padding: 4.5rem 0;
      border-bottom: 3px solid var(--accent-gold);
    }
    .hero-editorial-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(201, 162, 39, 0.15);
      border: 1px solid var(--border-gold);
      color: var(--accent-gold);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .category-h1 {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
    }
    .category-h1 span {
      color: var(--accent-gold);
    }
    .hero-lead-text {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #E5E7EB;
      margin-bottom: 2rem;
    }
    .hero-editorial-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(201, 162, 39, 0.3);
      backdrop-filter: blur(10px);
      border-radius: var(--radius);
      padding: 2rem;
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    }
    .editorial-stat-row {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding: 10px 0;
    }
    .editorial-stat-row:last-child {
      border-bottom: none;
    }
    .stat-label {
      color: #9CA3AF;
      font-size: 0.92rem;
    }
    .stat-val {
      color: var(--accent-gold);
      font-weight: 700;
      font-family: monospace, sans-serif;
    }

    /* 筛选组件 */
    .filter-board-card {
      background: var(--bg-card);
      border-radius: var(--radius);
      border: 1px solid var(--border-green);
      padding: 1.75rem 2rem;
      box-shadow: var(--shadow-sm);
      margin-bottom: 2rem;
    }
    .filter-group {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 14px;
    }
    .filter-group:last-child {
      margin-bottom: 0;
    }
    .filter-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary-green);
      min-width: 80px;
    }
    .filter-chip {
      background: var(--bg-light);
      border: 1px solid rgba(27, 67, 50, 0.1);
      padding: 4px 14px;
      border-radius: 4px;
      font-size: 0.85rem;
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-chip:hover, .filter-chip.active {
      background: var(--primary-green);
      color: #FFFFFF;
      border-color: var(--primary-green);
    }

    /* 资源卡片网格 */
    .resource-card {
      background: var(--bg-card);
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      margin-bottom: 1.5rem;
    }
    .resource-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-gold);
    }
    .resource-poster {
      position: relative;
      aspect-ratio: 16 / 9;
      background: linear-gradient(135deg, #1B4332 0%, #0F2D1F 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.2);
      font-size: 2.5rem;
      overflow: hidden;
    }
    .poster-badge {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(15, 45, 31, 0.85);
      border: 1px solid var(--accent-gold);
      color: var(--accent-gold);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 3px;
    }
    .poster-duration {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.7);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .resource-body {
      padding: 1.25rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .resource-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .resource-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }
    .resource-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      color: var(--text-light);
      border-top: 1px solid rgba(0,0,0,0.06);
      padding-top: 10px;
    }

    /* 性能参数卡片 */
    .metric-panel-card {
      background: #FFFFFF;
      border: 1px solid var(--border-green);
      border-radius: var(--radius);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      text-align: center;
      margin-bottom: 1.5rem;
      position: relative;
    }
    .metric-panel-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--primary-green);
      border-top-left-radius: var(--radius);
      border-top-right-radius: var(--radius);
    }
    .metric-panel-card.gold-top::before {
      background: var(--accent-gold);
    }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-green);
      font-family: monospace, sans-serif;
      margin: 10px 0 6px;
    }
    .metric-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-detail {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 解码对比表格 */
    .codec-table-container {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-green);
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
    }
    .codec-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      margin: 0;
    }
    .codec-table th {
      background: var(--primary-green);
      color: #FFFFFF;
      font-weight: 700;
      padding: 14px 18px;
      font-size: 0.95rem;
      border: none;
    }
    .codec-table td {
      padding: 14px 18px;
      border-bottom: 1px solid rgba(27, 67, 50, 0.08);
      font-size: 0.9rem;
      color: var(--text-main);
    }
    .codec-table tr:hover td {
      background: rgba(27, 67, 50, 0.02);
    }

    /* FAQ 交互 */
    .faq-card-box {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-green);
      box-shadow: var(--shadow-sm);
      padding: 1.5rem 2rem;
      margin-bottom: 1.25rem;
    }
    .faq-q-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .faq-q-title i {
      color: var(--accent-gold);
    }
    .faq-a-body {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin: 0;
    }

    /* 诊断连通性看板 */
    .telemetry-strip-card {
      background: #111827;
      color: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-gold);
      padding: 1.75rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      box-shadow: var(--shadow-hover);
    }
    .telemetry-status-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .status-pulse-dot {
      width: 12px;
      height: 12px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 10px #10B981;
    }

    /* 页脚 */
    .site-footer {
      background: var(--primary-dark);
      color: #9CA3AF;
      padding: 4.5rem 0 2rem;
      border-top: 3px solid var(--accent-gold);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand-title {
      color: #FFFFFF;
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand-desc {
      font-size: 0.9rem;
      line-height: 1.8;
      color: #9CA3AF;
    }
    .footer-col-heading {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col-heading::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 30px;
      height: 2px;
      background: var(--accent-gold);
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: #9CA3AF;
      font-size: 0.9rem;
    }
    .footer-links-list a:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 2rem;
      text-align: center;
      font-size: 0.85rem;
      color: #6B7280;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .category-h1 {
        font-size: 2.1rem;
      }
    }
    @media (max-width: 768px) {
      .nav-links, .nav-search-box, .btn-gold-action {
        display: none !important;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .telemetry-strip-card {
        flex-direction: column;
        align-items: flex-start;
      }
    }