/* roulang page: index */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部服务公示条 */
    .top-notice-bar {
      background-color: var(--dark-navy);
      color: #CBD5E0;
      font-size: 12.5px;
      height: 34px;
      line-height: 34px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-notice-bar span { margin-right: 20px; }
    .top-notice-bar i { color: var(--accent-green); margin-right: 5px; }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用布局 */
    .section-block {
      padding: 64px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 38px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 10px 0;
    }
    .section-desc {
      font-size: 14.5px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0;
      line-height: 1.7;
    }

    /* Hero：选型测评与实时面板 */
    .hero-panel {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 56px 0 44px;
    }
    .hero-h1 {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 18px;
    }
    .hero-lead {
      font-size: 15.5px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 26px;
    }
    .eval-box {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .eval-box-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-navy);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .eval-select-group {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 16px;
    }
    .eval-select-group select, .eval-select-group input {
      margin: 0;
      height: 40px;
      font-size: 13.5px;
      border-color: var(--border-color);
      border-radius: var(--radius);
      background-color: #FFFFFF;
    }
    .eval-result-preview {
      background: #FFFFFF;
      border: 1px dashed var(--secondary);
      padding: 12px 14px;
      border-radius: var(--radius);
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .btn-main {
      display: inline-block;
      width: 100%;
      text-align: center;
      background: var(--primary);
      color: #FFFFFF;
      padding: 11px 20px;
      font-size: 14.5px;
      font-weight: 600;
      border-radius: var(--radius);
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-main:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.25);
    }

    /* 实时数据看板条 */
    .metrics-bar {
      margin-top: 36px;
      padding-top: 28px;
      border-top: 1px solid var(--border-color);
    }
    .metric-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 16px;
      text-align: left;
      box-shadow: var(--shadow-sm);
    }
    .metric-value {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 12.5px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .metric-sub {
      font-size: 11.5px;
      color: var(--text-light);
    }

    /* 基础卡片样式 */
    .spec-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-card);
      height: 100%;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .spec-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .spec-card-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius);
      background: rgba(30, 86, 160, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .spec-card-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .spec-card-text {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* 参数对比表 */
    .compare-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow-x: auto;
      box-shadow: var(--shadow-card);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      font-size: 14px;
    }
    .compare-table th {
      background: var(--bg-alt);
      color: var(--dark-navy);
      padding: 16px 20px;
      font-weight: 700;
      border-bottom: 1px solid var(--border-color);
      text-align: left;
    }
    .compare-table td {
      padding: 14px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-main);
    }
    .compare-table tr:last-child td { border-bottom: none; }
    .badge-primary-pill {
      display: inline-block;
      background: rgba(30, 86, 160, 0.1);
      color: var(--primary);
      font-size: 12px;
      padding: 2px 8px;
      border-radius: 12px;
      font-weight: 600;
    }

    /* 时间轴发展脉络 */
    .timeline-container {
      position: relative;
      padding: 10px 0;
    }
    .timeline-item {
      position: relative;
      padding-left: 32px;
      margin-bottom: 28px;
    }
    .timeline-item::before {
      content: "";
      position: absolute;
      left: 7px;
      top: 24px;
      bottom: -28px;
      width: 2px;
      background: var(--border-color);
    }
    .timeline-item:last-child::before { display: none; }
    .timeline-point {
      position: absolute;
      left: 0;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #FFFFFF;
      box-shadow: 0 0 0 1px var(--primary);
    }
    .timeline-date {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .timeline-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .timeline-desc {
      font-size: 13.5px;
      color: var(--text-muted);
    }

    /* 剧集网格卡片 */
    .poster-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      margin-bottom: 24px;
    }
    .poster-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .poster-thumb-box {
      position: relative;
      width: 100%;
      aspect-ratio: 16/10;
      background: #E2E8F0;
      overflow: hidden;
    }
    .poster-thumb-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .poster-card:hover .poster-thumb-box img {
      transform: scale(1.05);
    }
    .poster-tag-quality {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(22, 36, 71, 0.85);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .poster-tag-state {
      position: absolute;
      bottom: 8px;
      right: 8px;
      background: var(--accent-green);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .poster-info {
      padding: 14px;
    }
    .poster-title {
      font-size: 14.5px;
      font-weight: 700;
      margin: 0 0 6px 0;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      color: var(--text-main);
    }
    .poster-meta {
      font-size: 12px;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
    }

    /* 播放端设备展示舞台 */
    .device-stage {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-card);
    }

    /* 分类入口导流板块 */
    .category-portal-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      transition: var(--transition);
      display: block;
      color: inherit;
    }
    .category-portal-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-card);
      transform: translateY(-2px);
    }
    .cat-portal-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
    }
    .cat-portal-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 白皮书与技术文章条目 */
    .doc-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 18px 20px;
      margin-bottom: 16px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .doc-icon {
      font-size: 24px;
      color: var(--primary);
      flex-shrink: 0;
      margin-top: 2px;
    }
    .doc-content h4 {
      font-size: 15.5px;
      font-weight: 700;
      margin: 0 0 6px 0;
      color: var(--text-main);
    }
    .doc-content p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 手风琴 FAQ */
    .faq-wrapper {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .faq-item {
      border-bottom: 1px solid var(--border-color);
    }
    .faq-item:last-child { border-bottom: none; }
    .faq-title {
      padding: 18px 22px;
      font-weight: 700;
      font-size: 15px;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      transition: background 0.2s;
    }
    .faq-title:hover {
      background: var(--bg-light);
    }
    .faq-body {
      padding: 0 22px 18px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 工单表单 */
    .feedback-form-box {
      background: #FFFFFF;
      border: 1px solid var(--primary);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow-card);
    }

    /* 公示列表条 */
    .bulletin-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 16px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 10px;
      font-size: 13.5px;
    }
    .bulletin-row span:first-child {
      color: var(--text-main);
      font-weight: 600;
    }
    .bulletin-time {
      color: var(--text-light);
      font-size: 12.5px;
    }

    /* 规整页脚 */
    .site-footer {
      background-color: var(--dark-navy);
      color: #A0AEC0;
      padding: 56px 0 28px;
      font-size: 13.5px;
      border-top: 4px solid var(--primary);
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: #CBD5E0;
    }
    .footer-links li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 44px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      text-align: center;
      font-size: 12.5px;
      color: #718096;
    }

    /* 移动端与响应式补充 */
    @media screen and (max-width: 768px) {
      .hero-h1 { font-size: 24px; }
      .eval-select-group { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      .section-block { padding: 42px 0; }
      .section-title { font-size: 22px; }
    }

/* roulang page: category1 */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用 */
    .section-block {
      padding: 56px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 30px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
    }
    .section-desc {
      font-size: 14.5px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0;
      line-height: 1.7;
    }

    /* 板块一：分类导航与元信息条 */
    .category-banner {
      background: linear-gradient(135deg, #162447 0%, #1E56A0 100%);
      color: #FFFFFF;
      padding: 40px 0;
      border-bottom: 3px solid var(--accent);
    }
    .cat-title-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .cat-h1 {
      font-size: 28px;
      font-weight: 800;
      color: #FFFFFF;
      margin: 0 0 10px 0;
      letter-spacing: -0.5px;
    }
    .cat-lead {
      font-size: 14.5px;
      color: rgba(255, 255, 255, 0.85);
      margin: 0;
      max-width: 680px;
      line-height: 1.6;
    }
    .cat-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .badge-chip {
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      color: #FFFFFF;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块二：多维筛选面板 */
    .filter-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px 24px;
      box-shadow: var(--shadow-sm);
      margin-top: -24px;
      position: relative;
      z-index: 10;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-color);
      gap: 12px;
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      font-size: 13.5px;
      font-weight: 700;
      color: var(--dark-navy);
      min-width: 76px;
    }
    .filter-items {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex: 1;
    }
    .filter-btn {
      font-size: 13px;
      color: var(--text-muted);
      padding: 4px 12px;
      border-radius: 4px;
      background: var(--bg-light);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-btn:hover, .filter-btn.active {
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      font-weight: 600;
      border-color: rgba(30, 86, 160, 0.2);
    }

    /* 板块三：影视卡片矩阵 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      margin-bottom: 36px;
    }
    .media-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .media-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .media-thumb-wrap {
      position: relative;
      width: 100%;
      padding-top: 133.33%; /* 3:4 影视比例 */
      background: var(--bg-alt);
      overflow: hidden;
    }
    .media-thumb-wrap img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-thumb-wrap img {
      transform: scale(1.04);
    }
    .media-tag-float {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(22, 36, 71, 0.88);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 600;
      padding: 3px 7px;
      border-radius: 3px;
      backdrop-filter: blur(4px);
    }
    .media-res-badge {
      position: absolute;
      top: 8px;
      right: 8px;
      background: var(--accent);
      color: #1A202C;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 3px;
      letter-spacing: 0.3px;
    }
    .media-body {
      padding: 14px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .media-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 6px 0;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .media-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .media-status {
      font-size: 12px;
      color: var(--secondary);
      font-weight: 600;
      background: rgba(45, 118, 196, 0.08);
      padding: 2px 6px;
      border-radius: 3px;
      display: inline-block;
    }
    .media-rate {
      color: #E5A93B;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 3px;
    }

    /* 分页条 */
    .custom-pagination {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
      margin-top: 10px;
    }
    .page-item {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      background: #FFFFFF;
      color: var(--text-main);
      font-size: 14px;
      font-weight: 500;
    }
    .page-item.active {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      font-weight: 600;
    }
    .page-item:hover:not(.active) {
      background: var(--bg-alt);
      color: var(--primary);
    }

    /* 板块四：分发节点指标 */
    .node-status-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }
    .node-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }
    .node-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .node-ping {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent-green);
      background: rgba(23, 185, 120, 0.1);
      padding: 2px 8px;
      border-radius: 12px;
    }
    .node-bar-bg {
      height: 6px;
      background: #E2E8F0;
      border-radius: 3px;
      overflow: hidden;
      margin-bottom: 10px;
    }
    .node-bar-val {
      height: 100%;
      background: var(--primary);
      border-radius: 3px;
    }
    .node-info-text {
      font-size: 12.5px;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
    }

    /* 板块五：深度文章列表 */
    .article-item-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .article-item-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .article-top-meta {
      font-size: 12.5px;
      color: var(--text-light);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .article-heading {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 10px 0;
      line-height: 1.45;
    }
    .article-excerpt {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .article-link-btn {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块六：播放环境适配指导 */
    .env-table {
      width: 100%;
      border-collapse: collapse;
      background: #FFFFFF;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }
    .env-table th {
      background: var(--bg-alt);
      color: var(--dark-navy);
      font-size: 14px;
      font-weight: 700;
      text-align: left;
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .env-table td {
      padding: 14px 18px;
      font-size: 13.5px;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-color);
      vertical-align: middle;
    }
    .env-table tr:last-child td {
      border-bottom: none;
    }
    .tag-support {
      font-size: 12px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(23, 185, 120, 0.1);
      color: var(--accent-green);
    }
    .tag-recommend {
      font-size: 12px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(30, 86, 160, 0.1);
      color: var(--primary);
    }

    /* 板块七：FAQ 手风琴 */
    .faq-accordion-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 14px;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .faq-title-btn {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-navy);
      background: none;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-title-btn:hover {
      color: var(--primary);
    }
    .faq-content-body {
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块八：底部收口入口 */
    .bottom-cta-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 44px 0;
      text-align: center;
    }
    .btn-portal-large {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 12px 32px;
      background: var(--primary);
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius);
      box-shadow: 0 4px 14px rgba(30, 86, 160, 0.2);
    }
    .btn-portal-large:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      transform: translateY(-2px);
    }

    /* 页脚样式 */
    .site-footer {
      background: var(--dark-navy);
      color: #FFFFFF;
      padding: 56px 0 28px;
      border-top: 3px solid var(--primary);
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      letter-spacing: -0.2px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 13.5px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 44px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
      text-align: center;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .media-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    @media (max-width: 640px) {
      .nav-links {
        display: none;
      }
      .media-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      .cat-h1 {
        font-size: 22px;
      }
      .filter-panel {
        margin-top: 0;
        padding: 16px;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category2 */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用布局 */
    .section-block {
      padding: 56px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 32px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
    }
    .section-desc {
      font-size: 14px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0;
      line-height: 1.7;
    }

    /* 分类首屏条形导览看板 */
    .cat-header-strip {
      background: linear-gradient(135deg, #162447 0%, #1E56A0 100%);
      color: #FFFFFF;
      padding: 40px 0;
    }
    .cat-h1 {
      font-size: 28px;
      font-weight: 700;
      margin: 0 0 10px;
      color: #FFFFFF;
    }
    .cat-lead {
      font-size: 14.5px;
      color: rgba(255, 255, 255, 0.85);
      margin: 0;
      line-height: 1.6;
    }
    .cat-badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
      align-items: center;
      height: 100%;
    }
    .cat-badge {
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #FFFFFF;
      padding: 6px 14px;
      border-radius: var(--radius);
      font-size: 13px;
      font-weight: 500;
    }

    /* 筛选过滤器卡片 */
    .filter-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
      margin-top: -24px;
      position: relative;
      z-index: 10;
    }
    .filter-row {
      display: flex;
      align-items: center;
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      width: 90px;
      font-size: 13.5px;
      font-weight: 700;
      color: var(--dark-navy);
      flex-shrink: 0;
    }
    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex-grow: 1;
    }
    .filter-btn {
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 13px;
      color: var(--text-muted);
      background: transparent;
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-btn:hover,
    .filter-btn.active {
      background: var(--bg-alt);
      color: var(--primary);
      border-color: var(--border-color);
      font-weight: 600;
    }

    /* 影视海报卡片网格 */
    .anime-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .anime-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.4);
    }
    .anime-poster-box {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #000;
    }
    .anime-poster {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .anime-card:hover .anime-poster {
      transform: scale(1.05);
    }
    .anime-tag-quality {
      position: absolute;
      top: 10px;
      left: 10px;
      background: var(--primary);
      color: #FFF;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .anime-tag-status {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(22, 36, 71, 0.85);
      color: #FFF;
      font-size: 11.5px;
      padding: 2px 8px;
      border-radius: 3px;
    }
    .anime-card-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .anime-title {
      font-size: 15.5px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 6px 0;
      line-height: 1.4;
    }
    .anime-meta {
      font-size: 12.5px;
      color: var(--text-light);
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
    }
    .anime-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 14px;
      flex-grow: 1;
    }
    .anime-btn-play {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      background: var(--bg-alt);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 8px 12px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .anime-btn-play:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 分页器 */
    .custom-pagination {
      margin-top: 40px;
      display: flex;
      justify-content: center;
      list-style: none;
      gap: 6px;
      padding: 0;
    }
    .custom-pagination li a,
    .custom-pagination li span {
      display: inline-block;
      padding: 8px 14px;
      font-size: 13.5px;
      font-weight: 600;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      color: var(--text-main);
    }
    .custom-pagination li.current span {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }
    .custom-pagination li a:hover {
      background: var(--bg-alt);
      color: var(--primary);
    }

    /* 指标状态看板 */
    .metric-gauge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .metric-gauge-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      flex-shrink: 0;
    }
    .metric-gauge-val {
      font-size: 22px;
      font-weight: 800;
      color: var(--dark-navy);
      line-height: 1.2;
    }
    .metric-gauge-txt {
      font-size: 12.5px;
      color: var(--text-light);
    }

    /* 周更排期表样式 */
    .schedule-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .schedule-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      margin: 0;
    }
    .schedule-table th {
      background: var(--bg-alt);
      color: var(--dark-navy);
      font-size: 13.5px;
      font-weight: 700;
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-color);
    }
    .schedule-table td {
      padding: 14px 16px;
      font-size: 13.5px;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-color);
    }
    .schedule-table tr:last-child td {
      border-bottom: none;
    }
    .status-badge {
      display: inline-block;
      font-size: 11.5px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .status-badge.today { background: rgba(23, 185, 120, 0.12); color: var(--accent-green); }
    .status-badge.sync { background: rgba(30, 86, 160, 0.1); color: var(--primary); }

    /* 播放环境与解码卡片 */
    .config-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      height: 100%;
    }
    .config-card-head {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-navy);
    }
    .config-list {
      list-style: none;
      margin: 0;
      padding: 0;
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .config-list li i {
      color: var(--accent-green);
      margin-right: 6px;
    }

    /* FAQ 手风琴样式 */
    .faq-block {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-title {
      padding: 16px 20px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }
    .faq-title:hover {
      background: var(--bg-light);
    }
    .faq-body {
      padding: 0 20px 16px 20px;
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 底部收口行动区 */
    .bottom-cta-banner {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .btn-action-view {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: #FFFFFF;
      padding: 12px 28px;
      font-size: 14.5px;
      font-weight: 600;
      border-radius: var(--radius);
      transition: var(--transition);
    }
    .btn-action-view:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      box-shadow: 0 6px 16px rgba(30, 86, 160, 0.25);
    }

    /* 页脚 */
    .site-footer {
      background: var(--dark-navy);
      color: #FFFFFF;
      padding: 56px 0 24px;
      border-top: 3px solid var(--primary);
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--primary);
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 8px;
    }
    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 13px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
      padding-left: 3px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      margin-top: 40px;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
    }

    @media (max-width: 1023px) {
      .nav-links { display: none; }
      .cat-badge-group { justify-content: flex-start; margin-top: 16px; }
      .filter-label { width: 70px; }
    }

/* roulang page: category3 */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部导航 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用 */
    .section-block {
      padding: 56px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 32px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
    }
    .section-desc {
      font-size: 14.5px;
      color: var(--text-muted);
      max-width: 840px;
      margin: 0;
      line-height: 1.7;
    }

    /* 分类首屏横幅看板 (板块一) */
    .archive-header-banner {
      background: linear-gradient(135deg, #162447 0%, #1E56A0 100%);
      color: #FFFFFF;
      padding: 42px 0 38px;
      border-bottom: 1px solid #101B35;
    }
    .archive-h1 {
      font-size: 28px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
      line-height: 1.35;
    }
    .archive-intro {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.85);
      line-height: 1.75;
      margin: 0 0 20px 0;
    }
    .archive-meta-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .archive-meta-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 4px;
      font-size: 13px;
      color: #FFFFFF;
    }
    .archive-meta-tag i {
      color: var(--accent);
    }
    .archive-side-kpi {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius);
      padding: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .side-kpi-item span {
      display: block;
      font-size: 12px;
      color: rgba(255, 255, 255, 0.7);
    }
    .side-kpi-item strong {
      display: block;
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
      margin-top: 2px;
    }

    /* 多维度检索控制栏 (板块二) */
    .filter-dashboard {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px 26px;
      box-shadow: var(--shadow-sm);
    }
    .filter-row {
      display: flex;
      align-items: flex-start;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-row:first-child {
      padding-top: 0;
    }
    .filter-label {
      width: 90px;
      font-weight: 700;
      font-size: 13.5px;
      color: var(--dark-navy);
      padding-top: 4px;
      flex-shrink: 0;
    }
    .filter-items {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-chip {
      padding: 4px 12px;
      font-size: 13px;
      border-radius: 4px;
      color: var(--text-muted);
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      cursor: pointer;
    }
    .filter-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .filter-chip.active {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      font-weight: 600;
    }

    /* 影视卡片流 (板块三) */
    .video-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .video-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.35);
    }
    .video-card-thumb {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #000000;
    }
    .video-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .video-card:hover .video-card-thumb img {
      transform: scale(1.05);
    }
    .video-badge {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(22, 36, 71, 0.85);
      color: #FFFFFF;
      font-size: 11px;
      padding: 2px 7px;
      border-radius: 3px;
      backdrop-filter: blur(4px);
      font-weight: 600;
    }
    .video-status {
      position: absolute;
      bottom: 8px;
      right: 8px;
      background: var(--accent-green);
      color: #FFFFFF;
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 3px;
      font-weight: 700;
    }
    .video-card-body {
      padding: 14px 14px 12px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .video-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 6px 0;
      line-height: 1.4;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .video-meta {
      font-size: 12px;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
    }
    .video-score {
      color: var(--accent);
      font-weight: 700;
    }
    .video-desc {
      font-size: 12.5px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
      height: 38px;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
    }
    .video-action {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 10px;
      border-top: 1px solid #F1F5F9;
    }
    .video-res {
      font-size: 11.5px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 2px 6px;
      border-radius: 3px;
    }
    .btn-play-link {
      font-size: 12.5px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 分页器 */
    .custom-pagination {
      margin: 36px 0 0 0;
      display: flex;
      justify-content: center;
      list-style: none;
      gap: 6px;
    }
    .custom-pagination li a,
    .custom-pagination li span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 36px;
      height: 36px;
      padding: 0 10px;
      font-size: 13.5px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      color: var(--text-main);
    }
    .custom-pagination li.current span {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      font-weight: 700;
    }

    /* 节点运行指标 (板块四) */
    .server-metric-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }
    .server-metric-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }
    .server-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .server-status-pill {
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 10px;
      background: #DEF7EC;
      color: #03543F;
      font-weight: 600;
    }
    .metric-progress-bar {
      height: 6px;
      background: #EDF2F7;
      border-radius: 3px;
      overflow: hidden;
      margin-bottom: 10px;
    }
    .metric-progress-fill {
      height: 100%;
      background: var(--primary);
    }
    .server-stat-nums {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
    }

    /* 专题图文文章 (板块五) */
    .article-summary-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .article-cover {
      height: 160px;
      overflow: hidden;
    }
    .article-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .article-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .article-badge {
      font-size: 11px;
      color: var(--secondary);
      font-weight: 700;
      margin-bottom: 6px;
    }
    .article-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .article-snippet {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .article-foot {
      margin-top: auto;
      font-size: 12px;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
    }

    /* 解码配置指南 (板块六) */
    .spec-table-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      text-align: left;
    }
    .spec-table th {
      background: #F8FAFC;
      color: var(--dark-navy);
      font-size: 13.5px;
      font-weight: 700;
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table td {
      font-size: 13px;
      color: var(--text-muted);
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }

    /* FAQ (板块七) */
    .accordion-item-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-q {
      padding: 16px 20px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
    }
    .accordion-a {
      padding: 0 20px 18px;
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 单一规整按钮收口区 (板块八) */
    .category-footer-cta {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 42px 0;
      text-align: center;
    }
    .btn-portal-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--primary);
      border: 1px solid var(--primary);
      transition: var(--transition);
    }
    .btn-portal-outline:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    /* 页脚 */
    .site-footer {
      background: #162447;
      color: #FFFFFF;
      padding: 56px 0 24px;
      border-top: 3px solid var(--primary);
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      position: relative;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 9px;
    }
    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.75);
      font-size: 13.5px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
      padding-left: 3px;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .archive-side-kpi { margin-top: 20px; }
      .archive-h1 { font-size: 22px; }
      .section-block { padding: 40px 0; }
    }

/* roulang page: category5 */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部服务公示条 */
    .top-notice-bar {
      background: var(--dark-navy);
      color: #E2E8F0;
      font-size: 12px;
      height: 32px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .top-notice-bar .notice-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .notice-item { display: inline-flex; align-items: center; gap: 6px; }
    .status-dot { width: 7px; height: 7px; background-color: var(--accent-green); border-radius: 50%; display: inline-block; }

    /* 主导航 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用布局 */
    .section-block {
      padding: 64px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 32px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
    }
    .section-desc {
      font-size: 14px;
      color: var(--text-muted);
      max-width: 840px;
      margin: 0;
      line-height: 1.7;
    }

    /* 板块一：分类 H1 导航与元信息看板 */
    .category-header-banner {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0 28px;
    }
    .cat-badge-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      justify-content: flex-end;
    }
    .cat-badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 12.5px;
      padding: 5px 12px;
      border-radius: 20px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .cat-badge.highlight {
      background: rgba(30, 86, 160, 0.08);
      border-color: rgba(30, 86, 160, 0.2);
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块二：多维度过滤检索面板 */
    .filter-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 2px;
    }
    .filter-label {
      width: 90px;
      font-size: 13.5px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex: 1;
    }
    .filter-btn {
      font-size: 13px;
      padding: 4px 12px;
      border-radius: 4px;
      color: var(--text-muted);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      background: transparent;
    }
    .filter-btn:hover {
      color: var(--primary);
      background: var(--bg-alt);
    }
    .filter-btn.active {
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
    }

    /* 板块三：核心影视卡片网格主体 */
    .media-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .media-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .media-thumb-wrap {
      position: relative;
      width: 100%;
      aspect-ratio: 16 / 10;
      background: #111827;
      overflow: hidden;
    }
    .media-thumb {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .media-card:hover .media-thumb {
      transform: scale(1.05);
    }
    .media-badge-top {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(22, 36, 71, 0.85);
      backdrop-filter: blur(4px);
      color: #FFF;
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 3px;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .media-fps-badge {
      position: absolute;
      bottom: 8px;
      right: 8px;
      background: var(--accent);
      color: #000;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 7px;
      border-radius: 3px;
      letter-spacing: 0.3px;
    }
    .media-body {
      padding: 14px 16px 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .media-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 6px 0;
      line-height: 1.4;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .media-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12.5px;
      color: var(--text-light);
      margin-bottom: 10px;
    }
    .media-meta-row .score {
      color: #D97706;
      font-weight: 700;
    }
    .media-footer-info {
      margin-top: auto;
      padding-top: 10px;
      border-top: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
    }
    .tag-codec {
      background: var(--bg-alt);
      color: var(--secondary);
      padding: 2px 6px;
      border-radius: 3px;
      font-weight: 500;
    }

    /* 分页导航 */
    .cinema-pagination {
      margin-top: 36px;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 6px;
      list-style: none;
      padding: 0;
    }
    .cinema-pagination a, .cinema-pagination span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 36px;
      height: 36px;
      padding: 0 10px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      font-size: 13.5px;
      color: var(--text-main);
    }
    .cinema-pagination .current {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      font-weight: 600;
    }
    .cinema-pagination a:hover {
      background: var(--bg-alt);
      border-color: var(--primary);
    }

    /* 板块四：分发节点运行指标 */
    .node-metric-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }
    .node-title {
      font-size: 14.5px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }
    .node-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }
    .node-desc {
      font-size: 12.5px;
      color: var(--text-light);
      margin: 0;
    }
    .progress-bar-wrap {
      height: 6px;
      background: var(--bg-alt);
      border-radius: 3px;
      overflow: hidden;
      margin-top: 10px;
    }
    .progress-bar-fill {
      height: 100%;
      background: var(--accent-green);
      border-radius: 3px;
    }

    /* 板块五：专题评测文章 */
    .article-post-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
    }
    .article-post-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .article-post-thumb {
      width: 100%;
      height: 170px;
      object-fit: cover;
    }
    .article-post-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .article-post-tag {
      font-size: 11.5px;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 6px;
    }
    .article-post-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .article-post-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .article-readmore {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块六：解码与播放环境矩阵 */
    .spec-table-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
      font-size: 13.5px;
    }
    .spec-table th {
      background: var(--bg-alt);
      color: var(--dark-navy);
      font-weight: 700;
      padding: 12px 16px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table td {
      padding: 12px 16px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }
    .badge-support {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 3px;
      font-size: 12px;
      font-weight: 600;
      background: rgba(23, 185, 120, 0.12);
      color: #0F9860;
    }

    /* 板块七：FAQ */
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-q {
      padding: 16px 20px;
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-navy);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      background: #FFFFFF;
    }
    .faq-a {
      padding: 0 20px 16px;
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块八：全局索引延伸区 */
    .bottom-cta-banner {
      background: linear-gradient(135deg, var(--dark-navy) 0%, #1a3c6d 100%);
      border-radius: var(--radius);
      padding: 40px;
      color: #FFFFFF;
      text-align: center;
    }
    .bottom-cta-banner h2 {
      font-size: 24px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .bottom-cta-banner p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 600px;
      margin: 0 auto 20px;
      line-height: 1.6;
    }
    .btn-white {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      color: var(--primary);
      padding: 11px 26px;
      border-radius: var(--radius);
      font-size: 14.5px;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    .btn-white:hover {
      background: #F0F4F8;
      color: var(--primary-hover);
    }

    /* 页脚设计 */
    .site-footer {
      background: var(--dark-navy);
      color: #FFFFFF;
      padding: 56px 0 28px;
      border-top: 3px solid var(--primary);
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.65);
      font-size: 13.5px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
    }

    @media screen and (max-width: 1024px) {
      .nav-links li a { padding: 6px 10px; font-size: 13.5px; }
    }
    @media screen and (max-width: 768px) {
      .nav-links { display: none; }
      .cat-badge-wrap { justify-content: flex-start; margin-top: 14px; }
      .section-block { padding: 44px 0; }
      .filter-row { flex-direction: column; align-items: flex-start; gap: 8px; }
      .bottom-cta-banner { padding: 28px 16px; }
    }

/* roulang page: category4 */
:root {
      --primary: #1E56A0;
      --primary-hover: #163E75;
      --secondary: #2D76C4;
      --accent: #E5A93B;
      --accent-green: #17B978;
      --dark-navy: #162447;
      --bg-light: #F6F8FA;
      --bg-alt: #EEF2F6;
      --card-bg: #FFFFFF;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --radius: 6px;
      --shadow-sm: 0 2px 8px rgba(30, 86, 160, 0.05);
      --shadow-card: 0 4px 14px rgba(30, 86, 160, 0.08);
      --shadow-hover: 0 10px 24px rgba(30, 86, 160, 0.14);
      --transition: all 0.25s ease-in-out;
    }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }
    
    /* 顶栏 */
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .site-logo-icon {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 6px;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 500;
      font-size: 14.5px;
      color: var(--text-main);
      border-radius: var(--radius);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      background-color: var(--bg-alt);
      color: var(--primary);
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      font-size: 13.5px;
      font-weight: 500;
      border-radius: var(--radius);
      background: var(--bg-alt);
      color: var(--dark-navy);
      border: 1px solid var(--border-color);
    }
    .btn-portal:hover {
      background: #E2E8F0;
      color: var(--primary);
    }

    /* 板块通用 */
    .section-block {
      padding: 56px 0;
      position: relative;
    }
    .section-block.bg-white { background-color: #FFFFFF; }
    .section-block.bg-alt { background-color: var(--bg-alt); }
    .section-header {
      margin-bottom: 30px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(30, 86, 160, 0.08);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
    }
    .section-desc {
      font-size: 14.5px;
      color: var(--text-muted);
      max-width: 860px;
      margin: 0;
      line-height: 1.7;
    }

    /* 分类首屏：标题导航条与规格状态看板 */
    .category-header-banner {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0 28px;
    }
    .cat-title-wrap h1 {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0 0 10px 0;
      line-height: 1.3;
    }
    .cat-lead-text {
      font-size: 14.5px;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.6;
    }
    .spec-badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      justify-content: flex-end;
    }
    .spec-pill {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 13px;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .spec-pill strong {
      color: var(--primary);
    }

    /* 检索过滤面板 */
    .filter-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 30px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      width: 90px;
      font-size: 13.5px;
      font-weight: 700;
      color: var(--text-light);
    }
    .filter-items {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex: 1;
    }
    .filter-btn {
      padding: 4px 12px;
      font-size: 13px;
      border-radius: 4px;
      color: var(--text-muted);
      background: transparent;
      border: 1px solid transparent;
      cursor: pointer;
    }
    .filter-btn:hover {
      color: var(--primary);
      background: var(--bg-light);
    }
    .filter-btn.active {
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
    }

    /* 影视卡片流 */
    .movie-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      margin-bottom: 24px;
    }
    .movie-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.35);
    }
    .card-poster {
      position: relative;
      aspect-ratio: 16/9;
      background: #1A202C;
      overflow: hidden;
    }
    .card-poster img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .movie-card:hover .card-poster img {
      transform: scale(1.04);
    }
    .badge-resolution {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(22, 36, 71, 0.85);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 6px;
      border-radius: 3px;
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255,255,255,0.2);
    }
    .badge-runtime {
      position: absolute;
      bottom: 8px;
      right: 8px;
      background: rgba(0, 0, 0, 0.75);
      color: #FFFFFF;
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .card-content {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .card-title {
      font-size: 15.5px;
      font-weight: 700;
      margin: 0 0 8px 0;
      line-height: 1.4;
      color: var(--text-main);
    }
    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 10px;
    }
    .card-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 14px;
      flex: 1;
    }
    .card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 10px;
      border-top: 1px solid var(--border-color);
    }
    .rate-badge {
      color: var(--accent);
      font-weight: 700;
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .link-detail {
      font-size: 12.5px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 运行指标看板 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .metric-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }
    .metric-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 评测解读卡片 */
    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .article-thumb {
      aspect-ratio: 16/9;
      background: #E2E8F0;
    }
    .article-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .article-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .article-time {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 6px;
    }
    .article-heading {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px 0;
      line-height: 1.4;
    }
    .article-snippet {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
      flex: 1;
    }

    /* 解码配置表格 */
    .spec-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
      font-size: 13.5px;
    }
    .spec-table th {
      background: var(--bg-alt);
      color: var(--dark-navy);
      font-weight: 700;
      padding: 14px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }

    /* FAQ 组件 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 22px;
      box-shadow: var(--shadow-sm);
    }
    .faq-q {
      font-size: 15.5px;
      font-weight: 700;
      color: var(--dark-navy);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-a {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 底部分页与全局索引入口 */
    .pagination-wrap {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      margin-top: 30px;
    }
    .page-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 36px;
      height: 36px;
      padding: 0 10px;
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      border-radius: var(--radius);
      font-size: 13.5px;
      color: var(--text-main);
    }
    .page-btn.active {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      font-weight: 600;
    }
    .page-btn:hover:not(.active) {
      background: var(--bg-alt);
      color: var(--primary);
    }

    .directory-action-bar {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
      text-align: center;
      box-shadow: var(--shadow-card);
    }
    .directory-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 28px;
      border-radius: var(--radius);
      box-shadow: 0 4px 14px rgba(30, 86, 160, 0.2);
    }
    .directory-btn:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
    }

    /* 页脚 */
    .site-footer {
      background: var(--dark-navy);
      color: #FFFFFF;
      padding: 56px 0 28px;
      font-size: 14px;
      border-top: 3px solid var(--primary);
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 13.5px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
      padding-left: 3px;
    }
    .footer-bottom {
      margin-top: 42px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
    }

    @media (max-width: 1023px) {
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .spec-badge-group {
        justify-content: flex-start;
        margin-top: 14px;
      }
    }
    @media (max-width: 639px) {
      .nav-links {
        display: none;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .cat-title-wrap h1 {
        font-size: 22px;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      .filter-label {
        width: 100%;
      }
    }