/* roulang page: index */
:root {
      --primary: #1e3a8a;
      --primary-dark: #0f172a;
      --primary-light: #3b82f6;
      --accent: #0284c7;
      --accent-gold: #d97706;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-muted: #f1f5f9;
      --text-main: #1e293b;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border: #e2e8f0;
      --border-focus: #93c5fd;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-body);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶栏与政务规范导航 */
    .top-gov-bar {
      background-color: #0f172a;
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid #1e293b;
    }
    .top-gov-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .gov-badge-text {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .gov-badge-text i {
      color: var(--accent-gold);
    }

    header.site-header {
      background-color: var(--bg-surface);
      border-bottom: 2px solid var(--primary);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 20px;
      box-shadow: 0 2px 4px rgba(30, 58, 138, 0.25);
    }
    .brand-text h1 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: -0.2px;
      line-height: 1.2;
    }
    .brand-text span {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 0.5px;
      display: block;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .nav-link {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .nav-link:hover {
      background-color: var(--bg-muted);
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
      border-bottom: 2px solid var(--primary);
      border-radius: 0;
    }
    .header-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .gov-query-btn {
      background-color: var(--primary);
      color: #fff;
      padding: 8px 16px;
      font-size: 13px;
      border-radius: var(--radius-sm);
      font-weight: 500;
      border: 1px solid var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .gov-query-btn:hover {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
    }

    /* Hero：无大图首屏，图标矩阵 + 状态条 + 短标题 */
    .hero-matrix-section {
      background-color: #ffffff;
      padding: 44px 0 40px;
      border-bottom: 1px solid var(--border);
    }
    .hero-status-strip {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: #f8fafc;
      border: 1px solid var(--border);
      border-left: 4px solid var(--accent);
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
      font-size: 13px;
    }
    .status-left {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-main);
    }
    .status-pulse {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .status-right {
      color: var(--text-muted);
      font-family: monospace;
    }
    .hero-title-wrap {
      margin-bottom: 20px;
    }
    .hero-title-wrap h2 {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .hero-intro-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 980px;
      margin-bottom: 28px;
    }
    .matrix-grid-banner {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: var(--bg-muted);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
    }
    .matrix-item {
      background: #ffffff;
      padding: 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .matrix-icon-box {
      width: 44px;
      height: 44px;
      background: #eff6ff;
      border-radius: var(--radius-sm);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }
    .matrix-info h3 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .matrix-info p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 通用Section布局 */
    .section-block {
      padding: 60px 0;
      border-bottom: 1px solid var(--border);
    }
    .section-block.bg-alt {
      background-color: #f1f5f9;
    }
    .section-header {
      margin-bottom: 32px;
    }
    .section-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      text-transform: uppercase;
      background: #e0f2fe;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      margin-bottom: 8px;
      letter-spacing: 0.5px;
    }
    .section-header h2 {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .section-desc {
      font-size: 14px;
      color: var(--text-muted);
      max-width: 860px;
      line-height: 1.7;
    }

    /* 1. 内容日历板块 */
    .calendar-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .calendar-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-top: 3px solid var(--primary);
      border-radius: var(--radius-sm);
      padding: 16px;
      box-shadow: var(--shadow-sm);
    }
    .cal-date-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }
    .cal-badge {
      background: #fee2e2;
      color: #b91c1c;
      font-size: 10px;
      padding: 1px 6px;
      border-radius: 2px;
      font-weight: 600;
    }
    .calendar-card h3 {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .calendar-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 2. 热门专题板块 */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .topic-item-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .topic-item-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }
    .topic-thumb-box {
      height: 160px;
      overflow: hidden;
      position: relative;
    }
    .topic-thumb-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .topic-category-tag {
      position: absolute;
      bottom: 8px;
      left: 8px;
      background: rgba(15, 23, 42, 0.85);
      color: #fff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
    }
    .topic-body {
      padding: 16px;
    }
    .topic-body h3 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .topic-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .topic-meta {
      font-size: 11px;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border);
      padding-top: 8px;
    }

    /* 3. 观点解读板块 */
    .viewpoint-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }
    .viewpoint-main {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .viewpoint-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .vp-tag {
      background: var(--accent-gold);
      color: #ffffff;
      font-size: 11px;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
    }
    .viewpoint-main h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }
    .viewpoint-main p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .vp-quote {
      border-left: 3px solid var(--primary);
      padding-left: 14px;
      margin: 16px 0;
      font-style: italic;
      color: var(--text-main);
      background: var(--bg-muted);
      padding: 12px 14px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .viewpoint-side {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .vp-side-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 16px;
    }
    .vp-side-card h4 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .vp-side-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 4. 资讯列表板块 */
    .news-dual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .news-list-box {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 20px;
    }
    .news-item {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border);
      font-size: 13px;
    }
    .news-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .news-title-link {
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .news-title-link:hover {
      color: var(--primary);
    }
    .news-dot {
      width: 5px;
      height: 5px;
      background: var(--accent);
      border-radius: 50%;
    }
    .news-date {
      color: var(--text-light);
      font-size: 12px;
      white-space: nowrap;
      margin-left: 12px;
    }

    /* 5. 媒体精选板块 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .media-block {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .media-cover-frame {
      height: 130px;
      position: relative;
    }
    .media-cover-frame img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .media-tag-float {
      position: absolute;
      top: 8px;
      right: 8px;
      background: rgba(30, 58, 138, 0.85);
      color: #fff;
      font-size: 10px;
      padding: 2px 6px;
      border-radius: 2px;
    }
    .media-content-text {
      padding: 12px;
    }
    .media-content-text h4 {
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 4px;
      color: var(--text-main);
    }
    .media-content-text p {
      font-size: 11px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 6. 数据分析板块 */
    .data-stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }
    .stat-metric-box {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }
    .metric-value {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
      font-family: monospace;
    }
    .metric-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 11px;
      color: var(--text-muted);
    }
    .analysis-table-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .analysis-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
      text-align: left;
    }
    .analysis-table th {
      background: var(--bg-muted);
      color: var(--text-main);
      padding: 12px 16px;
      font-weight: 600;
      border-bottom: 1px solid var(--border);
    }
    .analysis-table td {
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      color: var(--text-muted);
    }
    .analysis-table tr:last-child td {
      border-bottom: none;
    }

    /* 7. 平台保障板块 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .assure-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .assure-icon {
      font-size: 28px;
      color: var(--primary);
    }
    .assure-item h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
    }
    .assure-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 入口矩阵板块 */
    .portal-matrix-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .portal-unit {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 16px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .portal-icon {
      width: 36px;
      height: 36px;
      background: var(--bg-muted);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 16px;
      flex-shrink: 0;
    }
    .portal-text h4 {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .portal-text span {
      font-size: 11px;
      color: var(--text-light);
    }

    /* 9. 安全审计摘要板块 */
    .audit-box {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .audit-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .audit-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .audit-item i {
      color: #10b981;
      font-size: 16px;
      margin-top: 3px;
    }
    .audit-item div h5 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
      color: var(--text-main);
    }
    .audit-item div p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 10. 爆款清单板块 */
    .featured-stream-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .stream-spec-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .stream-meta-info {
      max-width: 80%;
    }
    .stream-meta-info h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .stream-meta-info p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .stream-action-tag {
      font-size: 11px;
      background: var(--bg-muted);
      color: var(--primary);
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      white-space: nowrap;
    }

    /* 11. 适用场景矩阵板块 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 20px;
      border-top: 2px solid var(--accent);
    }
    .scenario-card h3 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .scenario-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 订阅与收口行动区 */
    .newsletter-section {
      background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
      padding: 50px 0;
      border-bottom: 1px solid var(--border);
    }
    .newsletter-wrapper {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
    }
    .newsletter-wrapper h2 {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }
    .newsletter-wrapper p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .subscribe-form-group {
      display: flex;
      gap: 8px;
      justify-content: center;
    }
    .subscribe-input {
      width: 360px;
      padding: 10px 14px;
      font-size: 13px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      outline: none;
    }
    .subscribe-input:focus {
      border-color: var(--primary);
    }
    .subscribe-btn {
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 10px 20px;
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }
    .subscribe-btn:hover {
      background: var(--primary-dark);
    }

    /* 统一页脚 */
    footer.site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 50px 0 20px;
      font-size: 13px;
    }
    .footer-columns {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      color: #f8fafc;
      font-size: 16px;
      margin-bottom: 12px;
      font-weight: 700;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 14px;
      color: #64748b;
      font-size: 12px;
    }
    .footer-group h5 {
      color: #f8fafc;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748b;
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .matrix-grid-banner,
      .calendar-container,
      .media-card-grid,
      .data-stats-bar,
      .portal-matrix-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .topics-grid,
      .assurance-grid,
      .scenario-grid,
      .audit-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-columns {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .viewpoint-row,
      .news-dual-grid,
      .featured-stream-list {
        grid-template-columns: 1fr;
      }
      .main-nav {
        display: none;
      }
      .subscribe-form-group {
        flex-direction: column;
        align-items: center;
      }
      .subscribe-input {
        width: 100%;
        max-width: 320px;
      }
      .footer-columns {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
      }
    }
    @media (max-width: 520px) {
      .matrix-grid-banner,
      .calendar-container,
      .media-card-grid,
      .data-stats-bar,
      .portal-matrix-container,
      .topics-grid,
      .assurance-grid,
      .scenario-grid,
      .audit-grid {
        grid-template-columns: 1fr;
      }
      .hero-title-wrap h2 {
        font-size: 22px;
      }
      .hero-status-strip {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
      }
    }

/* roulang page: index */
:root {
            --primary-navy: #132438;
            --primary-blue: #1c4b82;
            --accent-gold: #c59b27;
            --accent-cyan: #0d8390;
            --bg-light: #f4f6f9;
            --bg-pure: #ffffff;
            --text-dark: #1f2d3d;
            --text-muted: #5e6d82;
            --border-color: #dcdfe6;
            --border-light: #eef1f6;
            --card-shadow: 0 4px 16px rgba(19, 36, 56, 0.08);
            --transition-smooth: all 0.25s ease-in-out;
            --radius-sm: 4px;
            --radius-md: 6px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部政务规范导航 */
        .site-header {
            background-color: var(--primary-navy);
            border-bottom: 2px solid var(--accent-gold);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .top-bar {
            background-color: #0b1623;
            color: #8c9ba5;
            font-size: 12px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .header-main {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
        }

        .logo-area h1 {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .logo-area span {
            display: block;
            font-size: 11px;
            color: #9cb3c9;
            font-weight: normal;
            margin-top: 2px;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-link {
            color: #d1dbe5;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
        }

        .nav-link:hover, .nav-link.active {
            color: #ffffff;
            background-color: var(--primary-blue);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-gov {
            background-color: var(--accent-gold);
            color: #ffffff;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-gov:hover {
            background-color: #b0871d;
        }

        /* Hero: 无大图图标矩阵 + 状态条 + 短标题 */
        .hero-matrix {
            background: linear-gradient(180deg, #132438 0%, #1f3752 100%);
            color: #ffffff;
            padding: 48px 0 36px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-status-bar {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 12px;
            margin-bottom: 20px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #52c41a;
            display: inline-block;
        }

        .hero-matrix-title {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #ffffff;
            letter-spacing: 0.5px;
        }

        .hero-matrix-desc {
            font-size: 15px;
            color: #b8cde3;
            max-width: 880px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .matrix-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 18px;
            border-radius: var(--radius-md);
            transition: var(--transition-smooth);
        }

        .matrix-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .matrix-code {
            font-family: monospace;
            font-size: 12px;
            color: var(--accent-gold);
            margin-bottom: 8px;
            display: block;
        }

        .matrix-name {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #ffffff;
        }

        .matrix-meta {
            font-size: 13px;
            color: #9cb3c9;
            line-height: 1.5;
        }

        /* 统一 Section */
        .section-block {
            padding: 56px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .section-alt {
            background-color: #ffffff;
        }

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

        .section-subtitle {
            font-size: 13px;
            color: var(--primary-blue);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
            display: block;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
        }

        .section-intro {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 820px;
            line-height: 1.6;
        }

        /* 板块：内容日历 */
        .calendar-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .calendar-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            border-top: 3px solid var(--primary-blue);
            box-shadow: var(--card-shadow);
        }

        .cal-time {
            font-size: 12px;
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }

        .cal-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .cal-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块：热门专题与图文卡 */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            transition: var(--transition-smooth);
        }

        .topic-card:hover {
            box-shadow: 0 8px 24px rgba(19, 36, 56, 0.12);
        }

        .topic-thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .topic-body {
            padding: 20px;
        }

        .topic-badge {
            display: inline-block;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 3px;
            background: #eaf1f8;
            color: var(--primary-blue);
            margin-bottom: 10px;
            font-weight: 600;
        }

        .topic-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary-navy);
        }

        .topic-text {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
            margin-bottom: 14px;
        }

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

        /* 板块：观点解读 */
        .insights-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .insight-box {
            background: #ffffff;
            padding: 28px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent-cyan);
            box-shadow: var(--card-shadow);
        }

        .insight-tag {
            font-size: 12px;
            color: var(--accent-cyan);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .insight-heading {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
        }

        .insight-p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块：资讯列表 */
        .news-table {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .news-row {
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition-smooth);
        }

        .news-row:last-child {
            border-bottom: none;
        }

        .news-row:hover {
            background-color: #f8fafc;
        }

        .news-date {
            font-size: 13px;
            color: #8c9ba5;
            font-family: monospace;
            width: 110px;
            flex-shrink: 0;
        }

        .news-category {
            background: #eef3f8;
            color: var(--primary-navy);
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 3px;
            margin-right: 16px;
            flex-shrink: 0;
        }

        .news-title-text {
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
            flex-grow: 1;
        }

        .news-status {
            font-size: 12px;
            color: #52c41a;
            flex-shrink: 0;
        }

        /* 板块：媒体精选 */
        .media-flex {
            display: flex;
            gap: 30px;
            align-items: center;
            background: #ffffff;
            padding: 30px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .media-flex img {
            width: 45%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        .media-content {
            width: 55%;
        }

        .media-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
        }

        .media-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        /* 板块：数据分析与对比 */
        .metric-counter-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: #ffffff;
            padding: 24px 20px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            text-align: center;
        }

        .metric-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 6px;
            font-family: "Arial", sans-serif;
        }

        .metric-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-navy);
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 12px;
            color: #8c9ba5;
        }

        /* 板块：安全审计摘要与平台保障 */
        .audit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .audit-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius-md);
        }

        .audit-status-tag {
            font-size: 11px;
            color: #13ce66;
            background: rgba(19, 206, 102, 0.1);
            padding: 2px 8px;
            border-radius: 2px;
            display: inline-block;
            margin-bottom: 10px;
            font-weight: bold;
        }

        .audit-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .audit-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块：订阅条与收口交互 */
        .subscribe-bar {
            background: linear-gradient(90deg, #132438 0%, #1c4b82 100%);
            color: #ffffff;
            padding: 40px;
            border-radius: var(--radius-md);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .sub-text-area h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .sub-text-area p {
            font-size: 13px;
            color: #b8cde3;
        }

        .sub-form-area {
            display: flex;
            gap: 12px;
        }

        .sub-input {
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            font-size: 14px;
            outline: none;
            width: 260px;
        }

        .sub-input::placeholder {
            color: #a0b2c6;
        }

        .btn-sub {
            background: var(--accent-gold);
            color: #ffffff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-smooth);
        }

        .btn-sub:hover {
            background: #b0871d;
        }

        /* 统一页脚 */
        .site-footer {
            background-color: #0b1623;
            color: #8c9ba5;
            padding: 48px 0 24px 0;
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-logo-title {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-text {
            line-height: 1.6;
            margin-bottom: 16px;
            max-width: 380px;
        }

        .footer-col-title {
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

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

        .footer-links-list a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .matrix-grid { grid-template-columns: repeat(2, 1fr); }
            .calendar-list { grid-template-columns: repeat(2, 1fr); }
            .topics-grid { grid-template-columns: repeat(2, 1fr); }
            .metric-counter-row { grid-template-columns: repeat(2, 1fr); }
            .audit-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .site-nav { display: none; }
            .calendar-list, .topics-grid, .insights-panel, .audit-grid { grid-template-columns: 1fr; }
            .media-flex { flex-direction: column; }
            .media-flex img, .media-content { width: 100%; }
            .subscribe-bar { flex-direction: column; text-align: center; gap: 20px; }
            .sub-form-area { width: 100%; flex-direction: column; }
            .sub-input { width: 100%; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }

/* roulang page: category2 */
:root {
        --primary: #1e3a8a;
        --primary-dark: #0f172a;
        --primary-light: #3b82f6;
        --accent: #0284c7;
        --accent-gold: #d97706;
        --bg-body: #f8fafc;
        --bg-surface: #ffffff;
        --bg-muted: #f1f5f9;
        --text-main: #1e293b;
        --text-muted: #475569;
        --text-light: #94a3b8;
        --border: #e2e8f0;
        --border-focus: #93c5fd;
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
        --radius-sm: 4px;
        --radius-md: 8px;
        --radius-lg: 12px;
        --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    }
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    body {
        font-family: var(--font-family);
        color: var(--text-main);
        background-color: var(--bg-body);
        line-height: 1.6;
        font-size: 15px;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 20px;
        padding-right: 20px;
    }

    /* 顶部与导航 */
    header.site-header {
        background-color: var(--bg-surface);
        border-bottom: 2px solid var(--primary);
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: var(--shadow-sm);
    }
    .top-bar {
        background: #0f172a;
        color: #94a3b8;
        font-size: 12px;
        padding: 6px 0;
        border-bottom: 1px solid #1e293b;
    }
    .top-bar-inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .header-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 76px;
    }
    .logo-area a {
        display: flex;
        flex-direction: column;
    }
    .logo-area h1 {
        font-size: 20px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -0.5px;
        line-height: 1.2;
    }
    .logo-area span {
        font-size: 11px;
        color: var(--text-muted);
        letter-spacing: 0.5px;
        margin-top: 2px;
    }
    .site-nav {
        display: flex;
        gap: 8px;
    }
    .nav-link {
        padding: 8px 14px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-main);
        border-radius: var(--radius-sm);
        transition: all 0.2s ease;
    }
    .nav-link:hover {
        background-color: var(--bg-muted);
        color: var(--primary);
    }
    .nav-link.active {
        color: var(--primary);
        font-weight: 700;
        background-color: #eff6ff;
        border-bottom: 2px solid var(--primary);
    }
    .btn-gov {
        background-color: var(--primary);
        color: #ffffff;
        padding: 9px 18px;
        font-size: 13px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        border: 1px solid var(--primary);
        cursor: pointer;
        transition: all 0.2s;
    }
    .btn-gov:hover {
        background-color: var(--primary-dark);
        border-color: var(--primary-dark);
    }

    /* 招聘雇主风分类首屏 Hero */
    .recruitment-hero {
        background-color: var(--bg-surface);
        padding: 48px 0;
        border-bottom: 1px solid var(--border);
    }
    .hero-split-grid {
        display: grid;
        grid-template-columns: 1.15fr 0.85fr;
        gap: 36px;
        align-items: stretch;
    }
    .hero-main-panel {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .employer-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: #e0f2fe;
        color: #0369a1;
        font-size: 12px;
        font-weight: 700;
        padding: 4px 10px;
        border-radius: var(--radius-sm);
        margin-bottom: 14px;
        align-self: flex-start;
    }
    .hero-main-panel h2 {
        font-size: 30px;
        font-weight: 800;
        color: var(--primary-dark);
        line-height: 1.3;
        margin-bottom: 16px;
    }
    .hero-main-panel p {
        font-size: 15px;
        color: var(--text-muted);
        line-height: 1.8;
        margin-bottom: 24px;
    }
    .perks-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-bottom: 24px;
    }
    .perk-item {
        background: var(--bg-muted);
        border: 1px solid var(--border);
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .perk-item i {
        color: var(--accent);
    }
    .hero-jobs-panel {
        background: #0f172a;
        color: #ffffff;
        border-radius: var(--radius-md);
        padding: 24px;
        box-shadow: var(--shadow-md);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    .jobs-panel-title {
        font-size: 16px;
        font-weight: 700;
        color: #93c5fd;
        border-bottom: 1px solid #1e293b;
        padding-bottom: 12px;
        margin-bottom: 16px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .job-card-mini {
        background: #1e293b;
        border-left: 3px solid var(--primary-light);
        padding: 12px 14px;
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        transition: transform 0.2s;
    }
    .job-card-mini:hover {
        transform: translateX(4px);
    }
    .job-card-mini .job-role {
        font-size: 14px;
        font-weight: 600;
        color: #ffffff;
        display: flex;
        justify-content: space-between;
    }
    .job-card-mini .job-meta {
        font-size: 12px;
        color: #94a3b8;
        margin-top: 4px;
    }

    /* 通用Section结构 */
    .section-block {
        padding: 56px 0;
        border-bottom: 1px solid var(--border);
    }
    .section-block.bg-alt {
        background-color: #ffffff;
    }
    .section-lead {
        margin-bottom: 32px;
    }
    .section-badge-code {
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        color: var(--accent);
        letter-spacing: 1px;
        margin-bottom: 6px;
        display: block;
    }
    .section-lead h3 {
        font-size: 24px;
        font-weight: 800;
        color: var(--primary-dark);
        margin-bottom: 10px;
    }
    .section-lead p {
        font-size: 14px;
        color: var(--text-muted);
        max-width: 800px;
        line-height: 1.7;
    }

    /* 板块2: 阶梯码率分组矩阵 */
    .stream-ladder-table {
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        background: #ffffff;
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        overflow: hidden;
    }
    .stream-ladder-table th, .stream-ladder-table td {
        padding: 14px 18px;
        font-size: 13px;
        text-align: left;
        border-bottom: 1px solid var(--border);
    }
    .stream-ladder-table th {
        background: var(--bg-muted);
        font-weight: 700;
        color: var(--text-main);
    }
    .stream-ladder-table tr:last-child td {
        border-bottom: none;
    }
    .ladder-tag {
        display: inline-block;
        padding: 2px 8px;
        font-size: 11px;
        font-weight: 600;
        border-radius: var(--radius-sm);
        background: #e2e8f0;
        color: #334155;
    }
    .ladder-tag.highlight {
        background: #dbeafe;
        color: #1e40af;
    }

    /* 板块3: 动态信道传输流程（非卡片对称布局） */
    .flow-timeline-box {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        position: relative;
    }
    .flow-step-card {
        background: #ffffff;
        border: 1px solid var(--border);
        padding: 20px;
        border-radius: var(--radius-sm);
        position: relative;
        box-shadow: var(--shadow-sm);
    }
    .flow-step-number {
        font-size: 24px;
        font-weight: 900;
        color: #cbd5e1;
        margin-bottom: 10px;
    }
    .flow-step-card h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .flow-step-card p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    /* 板块4: 关键帧与切片对齐机制（图文不对称排版） */
    .media-analysis-split {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        align-items: center;
    }
    .media-analysis-img {
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }
    .media-analysis-info h4 {
        font-size: 20px;
        font-weight: 800;
        color: var(--primary-dark);
        margin-bottom: 14px;
    }
    .metric-row {
        display: flex;
        align-items: baseline;
        gap: 12px;
        padding: 10px 0;
        border-bottom: 1px dashed var(--border);
    }
    .metric-name {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        width: 140px;
    }
    .metric-value {
        font-size: 13px;
        color: var(--text-muted);
        flex: 1;
    }

    /* 板块5: 边缘网关分发调度矩阵 */
    .gateway-matrix {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 24px;
    }
    .gateway-spec-box {
        background: #ffffff;
        border: 1px solid var(--border);
        padding: 24px;
        border-radius: var(--radius-sm);
    }
    .gateway-spec-box h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 12px;
    }
    .gateway-spec-box p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .feature-points {
        list-style: none;
    }
    .feature-points li {
        font-size: 13px;
        color: var(--text-main);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .feature-points li i {
        color: #10b981;
    }
    .telemetry-side {
        background: #0f172a;
        color: #f8fafc;
        padding: 24px;
        border-radius: var(--radius-sm);
        display: flex;
        flex-direction: column;
        justify-content: space-around;
    }
    .telemetry-item {
        border-left: 2px solid var(--accent);
        padding-left: 14px;
        margin-bottom: 14px;
    }
    .telemetry-num {
        font-size: 22px;
        font-weight: 800;
        color: #38bdf8;
    }
    .telemetry-desc {
        font-size: 12px;
        color: #94a3b8;
    }

    /* 板块6: 调优规范问答 */
    .faq-compact-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .faq-item-card {
        background: #ffffff;
        border: 1px solid var(--border);
        padding: 20px;
        border-radius: var(--radius-sm);
    }
    .faq-item-card h4 {
        font-size: 15px;
        font-weight: 700;
        color: var(--primary-dark);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .faq-item-card h4 i {
        color: var(--accent-gold);
    }
    .faq-item-card p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    /* 板块7: 规范验证终审行动区 */
    .cta-audit-banner {
        background: linear-gradient(90deg, #1e3a8a 0%, #0f172a 100%);
        color: #ffffff;
        padding: 40px;
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .cta-audit-info h3 {
        font-size: 22px;
        font-weight: 800;
        margin-bottom: 8px;
    }
    .cta-audit-info p {
        font-size: 14px;
        color: #cbd5e1;
        max-width: 680px;
    }
    .cta-audit-actions {
        display: flex;
        gap: 12px;
    }
    .btn-gold {
        background: var(--accent-gold);
        color: #ffffff;
        padding: 10px 22px;
        font-size: 13px;
        font-weight: 700;
        border-radius: var(--radius-sm);
        border: none;
        cursor: pointer;
    }
    .btn-gold:hover {
        background: #b45309;
    }

    /* 页脚 */
    footer.site-footer {
        background-color: #0f172a;
        color: #cbd5e1;
        padding: 56px 0 28px;
        font-size: 13px;
        border-top: 1px solid #1e293b;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
        gap: 36px;
        margin-bottom: 40px;
    }
    .footer-logo-title {
        font-size: 18px;
        font-weight: 800;
        color: #ffffff;
        margin-bottom: 14px;
    }
    .footer-col-title {
        font-size: 14px;
        font-weight: 700;
        color: #f1f5f9;
        margin-bottom: 14px;
        border-left: 3px solid var(--accent);
        padding-left: 8px;
    }
    .footer-text {
        font-size: 13px;
        color: #94a3b8;
        line-height: 1.7;
    }
    .footer-links-list {
        list-style: none;
    }
    .footer-links-list li {
        margin-bottom: 8px;
    }
    .footer-links-list a {
        color: #94a3b8;
    }
    .footer-links-list a:hover {
        color: #ffffff;
    }
    .footer-bottom {
        border-top: 1px solid #1e293b;
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        color: #64748b;
        font-size: 12px;
    }

    @media (max-width: 992px) {
        .hero-split-grid {
            grid-template-columns: 1fr;
        }
        .flow-timeline-box {
            grid-template-columns: repeat(2, 1fr);
        }
        .media-analysis-split {
            grid-template-columns: 1fr;
        }
        .gateway-matrix {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 768px) {
        .header-main {
            height: auto;
            flex-direction: column;
            padding: 12px 0;
            gap: 12px;
        }
        .site-nav {
            flex-wrap: wrap;
            justify-content: center;
        }
        .flow-timeline-box {
            grid-template-columns: 1fr;
        }
        .faq-compact-container {
            grid-template-columns: 1fr;
        }
        .cta-audit-banner {
            flex-direction: column;
            text-align: left;
            gap: 16px;
        }
        .footer-bottom {
            flex-direction: column;
            gap: 8px;
            text-align: center;
        }
    }

/* roulang page: category1 */
:root {
  --primary: #1e3a8a;
  --primary-dark: #0f172a;
  --primary-light: #3b82f6;
  --accent: #0284c7;
  --accent-gold: #d97706;
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-muted: #f1f5f9;
  --text-main: #1e293b;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --border-focus: #93c5fd;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
.top-bar {
  background-color: #0f172a;
  color: #94a3b8;
  font-size: 12px;
  border-bottom: 1px solid #1e293b;
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 34px;
}
header.site-header {
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.header-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}
.logo-area a {
  display: flex;
  flex-direction: column;
}
.logo-area h1 {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.3px;
  line-height: 1.2;
}
.logo-area span {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}
.site-nav .nav-link {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
}
.site-nav .nav-link:hover {
  background-color: var(--bg-muted);
  color: var(--primary);
}
.site-nav .nav-link.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 2px solid var(--primary);
  border-radius: 0;
}
.header-actions .btn-gov {
  background-color: var(--primary);
  color: #fff;
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.header-actions .btn-gov:hover {
  background-color: var(--primary-dark);
}
.category-hero {
  position: relative;
  background-image: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.85)), url('/assets/images/e8fde09d5c7f9b0a.webp');
  background-size: cover;
  background-position: center;
  padding: 64px 0 54px;
  color: #ffffff;
}
.category-hero-inner {
  max-width: 920px;
}
.badge-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
  border: 1px solid rgba(147, 197, 253, 0.35);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.category-hero h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: #ffffff;
}
.category-hero p {
  font-size: 15px;
  line-height: 1.8;
  color: #cbd5e1;
  margin-bottom: 24px;
}
.hero-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 18px;
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
}
.hero-meta-item span:first-child {
  font-size: 11px;
  color: #94a3b8;
  text-transform: uppercase;
}
.hero-meta-item span:last-child {
  font-size: 14px;
  font-weight: 600;
  color: #f8fafc;
}
.page-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.section-alt {
  background-color: var(--bg-muted);
}
.section-title-wrap {
  margin-bottom: 36px;
}
.section-title-wrap h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.section-title-wrap p {
  font-size: 14px;
  color: var(--text-muted);
}
.matrix-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card-icon {
  width: 44px;
  height: 44px;
  background: #eff6ff;
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
  border: 1px solid #bfdbfe;
}
.card-item h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.card-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.split-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}
.split-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 14px;
}
.split-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 18px;
}
.spec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.spec-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-main);
}
.spec-list li::before {
  content: "✔";
  color: var(--accent);
  font-weight: bold;
}
.split-visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.split-visual img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.spec-table-wrap {
  overflow-x: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
.spec-table th, .spec-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  background-color: #f8fafc;
  font-weight: 700;
  color: var(--primary-dark);
}
.spec-table tr:hover {
  background-color: #f8fafc;
}
.table-status {
  display: inline-block;
  padding: 2px 8px;
  background: #dcfce7;
  color: #15803d;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.timeline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 20px;
}
.timeline-step {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.timeline-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.timeline-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.qa-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.qa-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.qa-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.qa-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  padding: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.cta-text h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}
.cta-text p {
  font-size: 14px;
  color: #cbd5e1;
  max-width: 600px;
}
.cta-btn-group {
  display: flex;
  gap: 12px;
}
.btn-white {
  background: #ffffff;
  color: var(--primary-dark);
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.btn-white:hover {
  background: #e2e8f0;
}
footer.site-footer {
  background-color: #0b1329;
  color: #94a3b8;
  padding: 56px 0 24px;
  border-top: 3px solid var(--primary);
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
}
.footer-logo-title {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-text {
  line-height: 1.8;
  font-size: 13px;
  color: #64748b;
}
.footer-col-title {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}
.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links-list a {
  color: #94a3b8;
  font-size: 13px;
}
.footer-links-list a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #64748b;
}
@media (max-width: 1024px) {
  .matrix-3col, .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .split-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .header-main {
    flex-direction: column;
    height: auto;
    padding: 14px 0;
    gap: 12px;
  }
  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  .matrix-3col, .timeline-grid, .qa-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
    padding: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

/* roulang page: category3 */
:root {
            --primary: #1e3a8a;
            --primary-dark: #0f172a;
            --primary-light: #3b82f6;
            --accent: #0284c7;
            --accent-gold: #d97706;
            --bg-body: #f8fafc;
            --bg-surface: #ffffff;
            --bg-muted: #f1f5f9;
            --text-main: #1e293b;
            --text-muted: #475569;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-focus: #93c5fd;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-family);
            color: var(--text-main);
            background-color: var(--bg-body);
            line-height: 1.6;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 顶部通栏与主导航 */
        header.site-header {
            background-color: var(--bg-surface);
            border-bottom: 2px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .top-bar {
            background-color: var(--primary-dark);
            color: #94a3b8;
            font-size: 12px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .header-main {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }
        .logo-area a {
            display: flex;
            flex-direction: column;
        }
        .logo-area h1 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.2px;
            line-height: 1.2;
        }
        .logo-area span {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            margin-top: 2px;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
        }
        .nav-link:hover {
            background-color: var(--bg-muted);
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
        }
        .btn-gov {
            background-color: var(--primary);
            color: #fff;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .btn-gov:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        /* 帮助中心/文档级搜索 Hero */
        .doc-hero {
            background: linear-gradient(180deg, #ffffff 0%, var(--bg-muted) 100%);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 48px;
            text-align: center;
        }
        .doc-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: #e0f2fe;
            border: 1px solid #bae6fd;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .doc-hero h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 12px;
        }
        .doc-hero-p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .search-container {
            max-width: 680px;
            margin: 0 auto 16px;
            position: relative;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #ffffff;
            border: 2px solid var(--primary);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .search-box i {
            padding: 0 16px;
            color: var(--text-light);
            font-size: 16px;
        }
        .search-box input {
            border: none;
            outline: none;
            width: 100%;
            padding: 14px 0;
            font-size: 15px;
            color: var(--text-main);
        }
        .search-box button {
            background-color: var(--primary);
            color: #ffffff;
            border: none;
            padding: 14px 24px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            white-space: nowrap;
        }
        .search-box button:hover {
            background-color: var(--primary-dark);
        }
        .chip-tags {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
        }
        .chip-label {
            color: var(--text-muted);
            font-weight: 500;
        }
        .chip-item {
            background: #ffffff;
            border: 1px solid var(--border);
            padding: 4px 10px;
            border-radius: 14px;
            color: var(--text-main);
            transition: all 0.2s;
        }
        .chip-item:hover {
            border-color: var(--accent);
            color: var(--primary);
            background-color: #f0f9ff;
        }

        /* 基础 Section */
        .section-wrap {
            padding: 56px 0;
            border-bottom: 1px solid var(--border);
        }
        .section-wrap.bg-white {
            background-color: #ffffff;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header .section-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
            display: block;
        }
        .section-header h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .section-header p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 820px;
            line-height: 1.6;
        }

        /* 板块1：矩阵规格明细 (左右图文非同质化卡片) */
        .spec-split-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 36px;
            align-items: center;
        }
        .spec-visual-box {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }
        .spec-visual-box img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .spec-badge-overlay {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(4px);
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: #ffffff;
            font-size: 13px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .spec-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .spec-item {
            background: #ffffff;
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            padding: 18px 20px;
            border-radius: var(--radius-sm);
        }
        .spec-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .spec-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块2：声场分布拓扑与通道配置 (横向4列技术板) */
        .topology-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .topology-card {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .topology-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-focus);
        }
        .topology-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }
        .topology-code {
            font-size: 12px;
            font-weight: 700;
            background: var(--bg-muted);
            color: var(--primary-dark);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
        }
        .topology-icon {
            font-size: 18px;
            color: var(--accent);
        }
        .topology-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .topology-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .topology-meta {
            font-size: 12px;
            color: var(--text-light);
            border-top: 1px dashed var(--border);
            padding-top: 10px;
        }

        /* 板块3：声画纳秒级同步校验表 (指标行列表) */
        .sync-table-box {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .sync-table-header {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr 3fr;
            background: var(--bg-muted);
            padding: 14px 20px;
            font-weight: 700;
            font-size: 13px;
            color: var(--primary-dark);
            border-bottom: 1px solid var(--border);
        }
        .sync-table-row {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr 3fr;
            padding: 16px 20px;
            font-size: 13px;
            color: var(--text-main);
            border-bottom: 1px solid var(--border);
            align-items: center;
        }
        .sync-table-row:last-child {
            border-bottom: none;
        }
        .sync-table-row:nth-child(even) {
            background-color: #fafbfc;
        }
        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #10b981;
            margin-right: 6px;
        }

        /* 板块4：多流解耦与声轨切换流程 (步骤条) */
        .flow-step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .flow-step-card {
            background: #ffffff;
            border: 1px solid var(--border);
            padding: 24px 20px;
            border-radius: var(--radius-md);
            position: relative;
        }
        .step-num-flag {
            position: absolute;
            top: -12px;
            left: 20px;
            background: var(--primary);
            color: #ffffff;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 10px;
        }
        .flow-step-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-top: 6px;
            margin-bottom: 10px;
        }
        .flow-step-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块5：音频解码环境基准清单 */
        .decode-env-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .decode-card {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
        }
        .decode-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 12px;
        }
        .decode-card-header i {
            font-size: 20px;
            color: var(--primary);
        }
        .decode-card-header h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .param-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 13px;
        }
        .param-list li {
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
        }
        .param-list li span:last-child {
            font-weight: 600;
            color: var(--primary-dark);
        }

        /* 板块6：技术疑问解答与声场校正 FAQ */
        .faq-accordion-box {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 960px;
            margin: 0 auto;
        }
        .faq-item-row {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
        }
        .faq-item-row h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item-row h4 i {
            color: var(--accent);
            font-size: 14px;
        }
        .faq-item-row p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            padding-left: 22px;
        }

        /* 板块7：声学引擎监测条与收口 */
        .matrix-summary-box {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1e293b 100%);
            border-radius: var(--radius-md);
            padding: 36px 40px;
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }
        .summary-left h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .summary-left p {
            font-size: 14px;
            color: #94a3b8;
            max-width: 680px;
            line-height: 1.6;
        }
        .summary-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-white {
            background-color: #ffffff;
            color: var(--primary-dark);
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid #ffffff;
            cursor: pointer;
        }
        .btn-white:hover {
            background-color: #f1f5f9;
        }
        .btn-outline {
            background-color: transparent;
            color: #ffffff;
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: #ffffff;
        }

        /* 统一页脚 */
        footer.site-footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 56px 0 28px;
            border-top: 1px solid #1e293b;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo-title {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .footer-text {
            font-size: 13px;
            line-height: 1.7;
            color: #64748b;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-links-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 13px;
        }
        .footer-links-list a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #64748b;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .spec-split-grid {
                grid-template-columns: 1fr;
            }
            .topology-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .decode-env-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .top-bar-inner {
                flex-direction: column;
                gap: 4px;
                text-align: center;
            }
            .header-main {
                flex-direction: column;
                height: auto;
                padding: 14px 0;
                gap: 12px;
            }
            .site-nav {
                flex-wrap: wrap;
                justify-content: center;
            }
            .matrix-summary-box {
                flex-direction: column;
                text-align: center;
            }
            .summary-actions {
                width: 100%;
                justify-content: center;
            }
            .sync-table-header, .sync-table-row {
                grid-template-columns: 1.5fr 1fr 1.5fr;
            }
            .sync-table-header div:last-child, .sync-table-row div:last-child {
                display: none;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .topology-grid, .flow-step-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root {
      --primary: #1e3a8a;
      --primary-dark: #0f172a;
      --primary-light: #3b82f6;
      --accent: #0284c7;
      --accent-gold: #d97706;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-muted: #f1f5f9;
      --text-main: #1e293b;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border: #e2e8f0;
      --border-focus: #93c5fd;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-body);
      line-height: 1.6;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    /* 规范顶部栏 */
    .site-header {
      background-color: var(--bg-surface);
      border-bottom: 2px solid var(--primary);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: var(--shadow-sm);
    }
    .top-bar {
      background-color: var(--primary-dark);
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .header-main {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 0;
    }
    .logo-area a {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .logo-area h1 {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.3px;
      line-height: 1.2;
    }
    .logo-area span {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 0.4px;
    }
    .site-nav {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .nav-link {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }
    .nav-link:hover {
      background-color: var(--bg-muted);
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
      font-weight: 700;
      border-bottom: 2px solid var(--primary);
      border-radius: 0;
    }
    .btn-gov {
      background-color: var(--primary);
      color: #ffffff;
      padding: 8px 16px;
      font-size: 13px;
      border-radius: var(--radius-sm);
      font-weight: 500;
      border: 1px solid var(--primary);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-gov:hover {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
    }
    /* 矮横幅 Hero 区域 */
    .sub-hero {
      background: linear-gradient(to right, #0f172a, #1e3a8a);
      color: #ffffff;
      padding: 38px 0;
      position: relative;
    }
    .sub-hero-meta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      font-size: 12px;
      margin-bottom: 12px;
      color: #93c5fd;
    }
    .sub-hero h2 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 10px;
      line-height: 1.3;
    }
    .sub-hero p {
      font-size: 14px;
      color: #cbd5e1;
      max-width: 860px;
      line-height: 1.7;
    }
    /* 板块结构 */
    .section-wrap {
      padding: 50px 0;
      border-bottom: 1px solid var(--border);
    }
    .section-wrap.alt-bg {
      background-color: var(--bg-muted);
    }
    .section-title-wrap {
      margin-bottom: 30px;
    }
    .section-title-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 6px;
      display: inline-block;
    }
    .section-title-wrap h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.3;
      margin-bottom: 8px;
    }
    .section-title-wrap p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 节点指标仪表板 */
    .node-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .node-stat-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      padding: 20px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }
    .node-stat-card .val {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .node-stat-card .lab {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }
    .node-stat-card .desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* 拓扑网格与多列排版 */
    .topo-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .topo-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .topo-card-body {
      padding: 20px;
      flex: 1;
    }
    .topo-card-body h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }
    .topo-card-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .topo-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .topo-tag {
      font-size: 11px;
      background: var(--bg-muted);
      color: var(--text-main);
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
    }
    /* 图文混排区 */
    .feature-split {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: center;
    }
    .feature-content h4 {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }
    .feature-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .feature-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .feature-checklist li {
      font-size: 13px;
      color: var(--text-main);
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.5;
    }
    .feature-checklist li::before {
      content: "■";
      color: var(--accent);
      font-size: 10px;
      margin-top: 3px;
    }
    .feature-image-frame {
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      background: #000;
    }
    /* 协议对照表 */
    .protocol-table-wrap {
      overflow-x: auto;
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
    }
    .protocol-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 13px;
    }
    .protocol-table th {
      background: var(--bg-muted);
      color: var(--primary-dark);
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      font-weight: 700;
    }
    .protocol-table td {
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      color: var(--text-main);
    }
    .protocol-table tr:last-child td {
      border-bottom: none;
    }
    /* 调度阶段展示 */
    .dispatch-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .dispatch-step {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      padding: 18px;
      border-radius: var(--radius-sm);
      position: relative;
    }
    .step-num {
      font-size: 11px;
      font-weight: 700;
      color: #ffffff;
      background: var(--primary);
      display: inline-block;
      padding: 2px 7px;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
    }
    .dispatch-step h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }
    .dispatch-step p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* 运维监测列表 */
    .ops-log-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }
    .ops-log-item {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-left: 3px solid var(--accent);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
    }
    .ops-log-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 6px;
    }
    .ops-log-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .ops-log-status {
      font-size: 11px;
      color: #16a34a;
      background: #dcfce7;
      padding: 2px 6px;
      border-radius: var(--radius-sm);
    }
    .ops-log-text {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 页脚与复用设计 */
    .site-footer {
      background-color: var(--primary-dark);
      color: #94a3b8;
      padding: 50px 0 24px;
      border-top: 3px solid var(--primary);
      font-size: 13px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-logo-title {
      font-size: 17px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .footer-text {
      line-height: 1.7;
    }
    .footer-col-title {
      font-size: 14px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links-list a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748b;
    }
    @media (max-width: 1024px) {
      .node-stat-grid { grid-template-columns: repeat(2, 1fr); }
      .topo-grid { grid-template-columns: repeat(2, 1fr); }
      .dispatch-flow { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .header-main { flex-direction: column; gap: 12px; align-items: flex-start; }
      .site-nav { overflow-x: auto; width: 100%; padding-bottom: 4px; }
      .feature-split { grid-template-columns: 1fr; }
      .ops-log-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
      .top-bar-inner { flex-direction: column; gap: 4px; align-items: flex-start; }
    }
    @media (max-width: 520px) {
      .node-stat-grid { grid-template-columns: 1fr; }
      .topo-grid { grid-template-columns: 1fr; }
      .dispatch-flow { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }