/* roulang page: index */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    
    /* 渐变通栏导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-head.center {
      text-align: center;
      max-width: 840px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    h1, h2, h3, h4 {
      color: #ffffff;
      line-height: 1.3;
      letter-spacing: -0.01em;
    }
    .section-head h2 {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero：全宽浅色/高精工低矮仪表横幅 */
    .hero-banner-strip {
      background: linear-gradient(180deg, #131d2e 0%, #0d1422 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 56px 0 48px;
      position: relative;
      overflow: hidden;
    }
    .hero-banner-strip::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), transparent);
    }
    .hero-layout {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 38px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.25;
      background: linear-gradient(135deg, #ffffff 60%, #94a3b8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.8;
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      background: rgba(11, 15, 23, 0.85);
      border: 1px solid var(--border-color);
      padding: 16px 20px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
    }
    .metric-item {
      border-right: 1px solid var(--border-subtle);
      padding-right: 12px;
    }
    .metric-item:last-child {
      border-right: none;
      padding-right: 0;
    }
    .metric-val {
      font-family: var(--mono-stack);
      font-size: 24px;
      font-weight: 700;
      color: var(--accent);
      display: block;
      margin-bottom: 4px;
    }
    .metric-lbl {
      font-size: 12px;
      color: var(--text-dim);
      white-space: nowrap;
    }
    .hero-dash-panel {
      background: #0f172a;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow-card);
      font-family: var(--mono-stack);
    }
    .dash-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-subtle);
      padding-bottom: 10px;
      margin-bottom: 14px;
      font-size: 12px;
      color: var(--text-muted);
    }
    .dash-status {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
    }
    .dash-status-dot {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }
    .dash-row {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 8px;
      color: #cbd5e1;
    }
    .dash-row span:last-child {
      color: var(--cyan);
    }

    /* 2. 核心指标看板 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
      transition: all 0.25s ease;
    }
    .metric-card:hover {
      border-color: var(--border-color);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card);
    }
    .metric-card h3 {
      font-size: 16px;
      color: #e2e8f0;
      margin-bottom: 8px;
    }
    .metric-card .num {
      font-size: 32px;
      font-weight: 700;
      font-family: var(--mono-stack);
      color: var(--accent);
      margin-bottom: 8px;
      display: block;
    }
    .metric-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 极悦娱乐服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .matrix-card:hover {
      border-color: var(--border-color);
      box-shadow: var(--shadow-glow);
    }
    .matrix-card-header {
      margin-bottom: 16px;
    }
    .matrix-card h3 {
      font-size: 19px;
      margin-bottom: 10px;
      color: #ffffff;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .matrix-card-foot {
      margin-top: 20px;
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--accent-emerald);
      font-family: var(--mono-stack);
    }

    /* 4. 性能对比表 */
    .compare-wrap {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      color: #94a3b8;
      font-weight: 600;
      text-transform: uppercase;
      font-size: 12px;
      letter-spacing: 0.05em;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight {
      color: var(--accent);
      font-weight: 600;
      font-family: var(--mono-stack);
    }

    /* 5. 推广物料与全端生态 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .media-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .media-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
      border-bottom: 1px solid var(--border-subtle);
    }
    .media-body {
      padding: 20px;
    }
    .media-body h3 {
      font-size: 17px;
      margin-bottom: 8px;
    }
    .media-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 6. 分类入口矩阵（唯一指向4大静态分类页） */
    .cats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cat-box {
      background: linear-gradient(180deg, #162032 0%, #111827 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .cat-box:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
      box-shadow: 0 8px 24px rgba(0, 229, 153, 0.15);
    }
    .cat-box h3 {
      font-size: 18px;
      margin-bottom: 8px;
      color: #fff;
    }
    .cat-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .cat-btn {
      align-self: flex-start;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 7. 里程碑与演进轴 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 22px;
      position: relative;
    }
    .timeline-item .step-tag {
      font-family: var(--mono-stack);
      font-size: 12px;
      color: var(--cyan);
      margin-bottom: 6px;
      display: block;
    }
    .timeline-item h3 {
      font-size: 16px;
      margin-bottom: 10px;
    }
    .timeline-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. CMS 资讯动态列表 */
    .cms-posts-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .post-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .post-card:hover {
      border-color: var(--border-color);
      transform: translateY(-2px);
    }
    .post-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      margin-bottom: 12px;
    }
    .post-meta .cat-label {
      color: var(--accent);
      background: rgba(0, 229, 153, 0.08);
      padding: 2px 6px;
      border-radius: 3px;
    }
    .post-card h3 {
      font-size: 17px;
      line-height: 1.4;
      margin-bottom: 10px;
      color: #fff;
    }
    .post-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .post-link {
      font-size: 13px;
      color: var(--accent);
      font-weight: 500;
      align-self: flex-start;
    }
    .empty-state {
      grid-column: 1 / -1;
      padding: 48px;
      text-align: center;
      background: var(--bg-panel);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius);
      color: var(--text-muted);
      font-family: var(--mono-stack);
    }

    /* 9. 安全体系与数据底座 */
    .security-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .sec-img-wrap img {
      border-radius: var(--radius);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
    }
    .sec-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .sec-point-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 18px 20px;
    }
    .sec-point-item h3 {
      font-size: 16px;
      color: #e2e8f0;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .sec-point-item h3::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }
    .sec-point-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 网关接入与协议接口 */
    .protocol-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .proto-box {
      background: #0d131f;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 20px;
      font-family: var(--mono-stack);
    }
    .proto-box .proto-name {
      color: var(--cyan);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      display: block;
    }
    .proto-box p {
      font-family: var(--font-stack);
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 快速解答指南（入门步骤） */
    .guide-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guide-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .guide-num {
      width: 32px;
      height: 32px;
      background: rgba(0, 229, 153, 0.1);
      color: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--mono-stack);
      font-weight: 700;
      font-size: 15px;
      margin-bottom: 14px;
    }
    .guide-card h3 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .guide-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 交互体验 FAQ */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 22px;
    }
    .faq-item h3 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 10px;
    }
    .faq-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 13. 极悦娱乐业务转化与支持表单（唯一收口行动） */
    .action-panel {
      background: linear-gradient(135deg, #111b2d 0%, #0d1522 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 48px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .action-info h2 {
      font-size: 28px;
      margin-bottom: 14px;
    }
    .action-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .action-form {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 13px;
      color: var(--text-muted);
    }
    .form-control {
      background: #0b0f17;
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      padding: 12px 14px;
      color: #fff;
      font-size: 14px;
      font-family: inherit;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(0, 229, 153, 0.15);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    /* 统一页脚 */
    .site-footer {
      background: #070a10;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      font-size: 14px;
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: #ffffff;
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-col p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-dim);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 12px;
    }
    .footer-legal {
      display: flex;
      gap: 16px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-layout, .action-panel, .security-layout {
        grid-template-columns: 1fr;
      }
      .matrix-grid, .cms-posts-grid, .media-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid, .cats-grid, .timeline-steps, .guide-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-banner-strip {
        padding: 40px 0 32px;
      }
      .hero-content h1 {
        font-size: 28px;
      }
      .matrix-grid, .cms-posts-grid, .media-grid, .metrics-grid, .cats-grid, .timeline-steps, .protocol-grid, .guide-steps, .faq-grid {
        grid-template-columns: 1fr;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-subtle);
        padding-bottom: 10px;
      }
      .metric-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .action-panel {
        padding: 24px;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }

/* roulang page: article */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }
    section {
      padding: 64px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .article-hero {
      background: linear-gradient(180deg, #131d2e 0%, #0d1422 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0 40px;
      position: relative;
    }
    .article-hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), transparent);
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 20px;
    }
    .breadcrumb-nav a:hover {
      color: var(--accent);
    }
    .breadcrumb-separator {
      color: var(--text-dim);
    }
    .article-hero-layout {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 40px;
      align-items: flex-start;
    }
    .article-title-block h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #ffffff 70%, #94a3b8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .article-meta-strip {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
      font-family: var(--mono-stack);
      margin-bottom: 24px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .meta-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .meta-dot {
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
      display: inline-block;
    }
    .article-lead-box {
      background: rgba(22, 32, 50, 0.7);
      border-left: 3px solid var(--accent);
      border-radius: 0 var(--radius) var(--radius) 0;
      padding: 18px 24px;
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-main);
      border-top: 1px solid var(--border-subtle);
      border-right: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .trial-box {
      background: var(--bg-panel);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    .trial-box-header {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .trial-box p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .trial-spec-list {
      list-style: none;
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      margin-bottom: 20px;
      border-top: 1px solid var(--border-subtle);
      padding-top: 12px;
    }
    .trial-spec-list li {
      display: flex;
      justify-content: space-between;
      padding: 6px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
    }
    .trial-spec-list span:last-child {
      color: var(--accent);
      font-weight: 600;
    }
    .article-main-grid {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 40px;
      align-items: start;
    }
    .article-content-body {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 40px;
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.85;
      letter-spacing: 0.01em;
    }
    .article-content-body h2 {
      font-size: 24px;
      color: var(--text-main);
      margin: 36px 0 16px;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(0, 229, 153, 0.2);
    }
    .article-content-body h3 {
      font-size: 19px;
      color: var(--accent);
      margin: 28px 0 12px;
    }
    .article-content-body p {
      margin-bottom: 20px;
    }
    .article-content-body ul, .article-content-body ol {
      margin: 0 0 24px 20px;
      padding-left: 10px;
    }
    .article-content-body li {
      margin-bottom: 8px;
    }
    .article-content-body blockquote {
      border-left: 3px solid var(--cyan);
      background: rgba(6, 182, 212, 0.05);
      padding: 16px 20px;
      margin: 24px 0;
      color: var(--text-muted);
      border-radius: 0 var(--radius) var(--radius) 0;
    }
    .article-content-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 24px 0;
      font-size: 14px;
    }
    .article-content-body th, .article-content-body td {
      border: 1px solid var(--border-subtle);
      padding: 12px 16px;
      text-align: left;
    }
    .article-content-body th {
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main);
    }
    .not-found-panel {
      padding: 60px 30px;
      text-align: center;
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
    }
    .not-found-panel h2 {
      font-size: 24px;
      margin-bottom: 16px;
      color: var(--warn);
    }
    .sidebar-widget {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 24px;
    }
    .widget-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      padding-bottom: 12px;
      margin-bottom: 16px;
      border-bottom: 1px solid var(--border-subtle);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .takeaway-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .takeaway-item {
      display: flex;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .takeaway-num {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
      border-radius: 4px;
      background: rgba(0, 229, 153, 0.1);
      color: var(--accent);
      font-family: var(--mono-stack);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
    }
    .metric-param-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
      font-family: var(--mono-stack);
    }
    .metric-param-table tr {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .metric-param-table td {
      padding: 10px 0;
    }
    .metric-param-table td:first-child {
      color: var(--text-dim);
    }
    .metric-param-table td:last-child {
      text-align: right;
      color: var(--accent);
      font-weight: 600;
    }
    .post-nav-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 20px;
      transition: all 0.25s ease;
    }
    .post-nav-card:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
    }
    .post-nav-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 32px;
    }
    .disclaimer-card {
      background: rgba(22, 32, 50, 0.4);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 20px 24px;
      margin-top: 32px;
      font-size: 13px;
      color: var(--text-dim);
      line-height: 1.7;
    }
    .site-footer {
      background: #070a10;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      font-size: 14px;
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      color: var(--text-main);
      font-size: 15px;
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-col p {
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 16px;
      font-size: 13px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 12px;
      flex-wrap: wrap;
      gap: 16px;
    }
    .footer-legal {
      display: flex;
      gap: 20px;
    }
    @media (max-width: 1024px) {
      .article-hero-layout, .article-main-grid {
        grid-template-columns: 1fr;
      }
      .footer-matrix {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
      }
      .article-content-body {
        padding: 24px;
      }
      .post-nav-grid {
        grid-template-columns: 1fr;
      }
      .article-title-block h1 {
        font-size: 26px;
      }
    }

/* roulang page: category1 */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 渐变通栏导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }
    /* 分类页定制横幅（非首页Hero） */
    .category-top-banner {
      background: linear-gradient(180deg, #111827 0%, #0b0f17 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0 40px;
      position: relative;
    }
    .breadcrumb-row {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 18px;
    }
    .breadcrumb-row a:hover {
      color: var(--accent);
    }
    .banner-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .banner-text h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #fff;
    }
    .banner-text p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .banner-specs-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    .specs-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-subtle);
      padding-bottom: 12px;
      margin-bottom: 16px;
      font-size: 13px;
      color: var(--accent);
      font-family: var(--mono-stack);
    }
    .specs-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .spec-item {
      background: rgba(11, 15, 23, 0.6);
      padding: 12px 14px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .spec-label {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 4px;
    }
    .spec-val {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      font-family: var(--mono-stack);
    }
    /* 板块通用 */
    section {
      padding: 64px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-head {
      margin-bottom: 36px;
    }
    .section-head.center {
      text-align: center;
      max-width: 840px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 核心指标卡片 */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .arch-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      position: relative;
      overflow: hidden;
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }
    .arch-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-glow);
      border-color: var(--accent);
      background: var(--bg-card-hover);
    }
    .arch-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 11px;
      color: var(--cyan);
      background: rgba(6, 182, 212, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 14px;
    }
    .arch-card h3 {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 12px;
      color: #fff;
    }
    .arch-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .arch-meta {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-subtle);
      padding-top: 14px;
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
    }
    /* 图文交错看板 */
    .split-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 48px;
    }
    .split-row:last-child {
      margin-bottom: 0;
    }
    .split-row.reversed {
      direction: rtl;
    }
    .split-row.reversed > * {
      direction: ltr;
    }
    .split-media {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .split-media img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .split-media:hover img {
      transform: scale(1.03);
    }
    .split-content h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
      color: #fff;
    }
    .split-content p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .feature-list {
      list-style: none;
      display: grid;
      gap: 12px;
    }
    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-main);
    }
    .feature-bullet {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      margin-top: 8px;
      flex-shrink: 0;
    }
    /* 参数规格表 */
    .spec-table-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow-x: auto;
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .spec-table th, .spec-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .spec-table th {
      background: rgba(11, 15, 23, 0.7);
      color: var(--text-muted);
      font-weight: 600;
      font-family: var(--mono-stack);
      text-transform: uppercase;
      font-size: 12px;
    }
    .spec-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }
    .status-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
      font-family: var(--mono-stack);
      font-size: 13px;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 6px var(--accent);
    }
    /* 资讯列表网格 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .news-card:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
    }
    .news-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }
    .news-link {
      font-size: 13px;
      color: var(--accent);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-empty {
      text-align: center;
      padding: 48px;
      background: var(--bg-card);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius);
      color: var(--text-muted);
    }
    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .flow-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .flow-num {
      font-size: 28px;
      font-family: var(--mono-stack);
      font-weight: 800;
      color: var(--accent);
      opacity: 0.8;
      margin-bottom: 12px;
      display: block;
    }
    .flow-card h4 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 10px;
      color: #fff;
    }
    .flow-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* FAQ手风琴 */
    .faq-list {
      max-width: 920px;
      margin: 0 auto;
      display: grid;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 22px 26px;
    }
    .faq-q {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .faq-q-badge {
      color: var(--accent);
      font-family: var(--mono-stack);
      font-size: 14px;
    }
    .faq-a {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    /* 落地CTA */
    .action-panel {
      background: linear-gradient(135deg, #111827 0%, #162032 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 48px;
      text-align: center;
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
    }
    .action-panel::before {
      content: '';
      position: absolute;
      top: 0;
      left: 20%;
      right: 20%;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
    }
    .action-panel h2 {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 16px;
      color: #fff;
    }
    .action-panel p {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto 30px;
      line-height: 1.7;
    }
    .action-btns {
      display: flex;
      justify-content: center;
      gap: 18px;
    }
    /* 页脚 */
    .site-footer {
      background: #080b12;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: grid;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-legal {
      display: flex;
      gap: 20px;
      font-family: var(--mono-stack);
      font-size: 12px;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .arch-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .banner-grid {
        grid-template-columns: 1fr;
      }
      .split-row, .split-row.reversed {
        grid-template-columns: 1fr;
        direction: ltr;
      }
      .arch-grid, .news-grid, .flow-steps {
        grid-template-columns: 1fr;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
      }
    }

/* roulang page: category3 */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 渐变通栏导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }
    /* 面包屑 */
    .breadcrumb-bar {
      padding: 16px 0;
      background: rgba(17, 24, 39, 0.5);
      border-bottom: 1px solid var(--border-subtle);
      font-size: 13px;
      color: var(--text-dim);
    }
    .breadcrumb-bar a {
      color: var(--text-muted);
    }
    .breadcrumb-bar a:hover {
      color: var(--accent);
    }
    .breadcrumb-bar span {
      margin: 0 8px;
      color: var(--border-subtle);
    }
    /* 板块结构 */
    section {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-head.center {
      text-align: center;
      max-width: 840px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 分类首屏：图标矩阵 + 状态条 + 短标题（无大图首屏） */
    .cat-hero-band {
      background: linear-gradient(180deg, #111827 0%, #0d1422 100%);
      padding: 56px 0 48px;
      border-bottom: 1px solid var(--border-color);
    }
    .cat-hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .cat-hero-text h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .cat-hero-text p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.75;
    }
    .status-strip-box {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      padding: 16px;
      background: rgba(22, 32, 50, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
    }
    .status-item {
      display: flex;
      flex-direction: column;
      flex: 1;
      min-width: 140px;
    }
    .status-item .s-label {
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      margin-bottom: 4px;
    }
    .status-item .s-val {
      font-size: 20px;
      font-weight: 700;
      color: var(--accent);
      font-family: var(--mono-stack);
    }
    .icon-matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      box-shadow: var(--shadow-card);
    }
    .matrix-node {
      background: rgba(11, 15, 23, 0.6);
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      padding: 16px;
      transition: all 0.25s ease;
    }
    .matrix-node:hover {
      border-color: var(--accent);
      background: rgba(0, 229, 153, 0.04);
    }
    .matrix-node-icon {
      font-size: 20px;
      color: var(--cyan);
      margin-bottom: 8px;
      font-family: var(--mono-stack);
    }
    .matrix-node h3 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .matrix-node p {
      font-size: 13px;
      color: var(--text-dim);
      line-height: 1.5;
    }
    /* 卡片网格 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .tech-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px;
      position: relative;
      transition: all 0.25s ease;
      box-shadow: var(--shadow-card);
    }
    .tech-card:hover {
      transform: translateY(-3px);
      border-color: var(--accent);
      box-shadow: var(--shadow-glow);
    }
    .tech-card .node-tag {
      font-family: var(--mono-stack);
      font-size: 11px;
      color: var(--cyan);
      margin-bottom: 12px;
      display: inline-block;
    }
    .tech-card h3 {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .tech-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .spec-list {
      list-style: none;
      padding-top: 14px;
      border-top: 1px solid var(--border-subtle);
    }
    .spec-list li {
      font-size: 13px;
      color: var(--text-dim);
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
      font-family: var(--mono-stack);
    }
    .spec-list li span:last-child {
      color: var(--text-main);
      font-weight: 500;
    }
    /* 对比面板与图文 */
    .dual-feature-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .media-card-frame {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .media-card-frame img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      filter: brightness(0.9) contrast(1.05);
    }
    .media-card-caption {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(180deg, transparent 0%, rgba(11, 15, 23, 0.95) 100%);
      padding: 20px;
      font-size: 13px;
      color: var(--accent);
      font-family: var(--mono-stack);
    }
    /* 性能参数仪表板 */
    .metric-terminal-panel {
      background: var(--bg-panel);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
    }
    .terminal-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .terminal-head span {
      font-family: var(--mono-stack);
      font-size: 13px;
      color: var(--accent);
    }
    .terminal-rows {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .terminal-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      background: rgba(11, 15, 23, 0.5);
      border: 1px solid var(--border-subtle);
      border-radius: 4px;
    }
    .t-label {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
    }
    .t-bar-wrap {
      flex: 1;
      margin: 0 24px;
      background: rgba(255, 255, 255, 0.05);
      height: 8px;
      border-radius: 4px;
      overflow: hidden;
      position: relative;
    }
    .t-bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--cyan), var(--accent));
      border-radius: 4px;
    }
    .t-val {
      font-family: var(--mono-stack);
      font-size: 14px;
      font-weight: 600;
      color: var(--accent);
      width: 80px;
      text-align: right;
    }
    /* 流程时间序列 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .step-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .step-box .step-num {
      font-family: var(--mono-stack);
      font-size: 28px;
      font-weight: 700;
      color: rgba(0, 229, 153, 0.35);
      margin-bottom: 12px;
      line-height: 1;
    }
    .step-box h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .step-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 资讯列表网格 */
    .post-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .post-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .post-card:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
    }
    .post-meta {
      display: flex;
      justify-content: space-between;
      font-family: var(--mono-stack);
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 12px;
    }
    .post-tag {
      color: var(--cyan);
      background: rgba(6, 182, 212, 0.1);
      padding: 2px 6px;
      border-radius: 3px;
    }
    .post-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
      line-height: 1.4;
      color: var(--text-main);
    }
    .post-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .post-link {
      font-size: 13px;
      color: var(--accent);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .post-link:hover {
      color: #1bf7ac;
    }
    .empty-cms-box {
      background: var(--bg-panel);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius);
      padding: 48px;
      text-align: center;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      font-size: 14px;
    }
    /* FAQ 手风琴面板 */
    .faq-stack {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 960px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .faq-title {
      padding: 20px 24px;
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-title:hover {
      background: rgba(255, 255, 255, 0.02);
      color: var(--accent);
    }
    .faq-icon {
      font-family: var(--mono-stack);
      font-size: 18px;
      color: var(--accent);
      transition: transform 0.25s ease;
    }
    .faq-body {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      display: block;
    }
    /* 转化卡片条 */
    .cta-band {
      background: linear-gradient(135deg, #131e30 0%, #0d1524 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 48px;
      text-align: center;
      box-shadow: var(--shadow-card);
    }
    .cta-band h2 {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .cta-band p {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto 28px;
    }
    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
    }
    /* 页脚 */
    .site-footer {
      background: #070a10;
      border-top: 1px solid var(--border-color);
      padding: 64px 0 32px;
      font-size: 14px;
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col p {
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.75;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 20px;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-dim);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent);
      transform: translateX(2px);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 13px;
    }
    .footer-legal {
      display: flex;
      gap: 16px;
      font-family: var(--mono-stack);
      font-size: 12px;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .card-grid-3, .post-card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .cat-hero-grid, .dual-feature-wrap {
        grid-template-columns: 1fr;
      }
      .card-grid-2, .card-grid-3, .post-card-grid, .flow-steps-grid {
        grid-template-columns: 1fr;
      }
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .footer-legal {
        flex-direction: column;
        gap: 8px;
      }
      .cta-band {
        padding: 32px 20px;
      }
      .status-strip-box {
        flex-direction: column;
      }
    }

/* roulang page: category2 */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-head.center {
      text-align: center;
      max-width: 840px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 蓝图：Hero 品牌旗舰店，系列导航条叠在大图上 + 进店 CTA */
    .flagship-hero {
      position: relative;
      padding: 80px 0 60px;
      background: #090e17;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .flagship-bg-wrapper {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 1;
      opacity: 0.28;
    }
    .flagship-bg-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(1.2) contrast(1.1);
    }
    .flagship-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.75) 0%, rgba(11, 15, 23, 0.95) 100%);
      z-index: 2;
    }
    .flagship-container {
      position: relative;
      z-index: 3;
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 24px;
      font-family: var(--mono-stack);
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--accent);
    }
    .flagship-header-box {
      max-width: 860px;
      margin-bottom: 36px;
    }
    .flagship-header-box h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      background: linear-gradient(135deg, #ffffff 60%, #a7f3d0 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .flagship-header-box p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    /* 叠在大图上的系列矩阵导航条 */
    .flagship-strip-nav {
      background: rgba(17, 24, 39, 0.85);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 16px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      box-shadow: var(--shadow-card);
    }
    .strip-items {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .strip-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-subtle);
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .strip-pill.active {
      background: rgba(0, 229, 153, 0.12);
      border-color: var(--accent);
      color: var(--accent);
      font-weight: 600;
    }
    .strip-pill-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 6px var(--accent);
    }

    /* 板块2: 算力矩阵拓扑卡片 (4列结构) */
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .spec-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .spec-card:hover {
      border-color: var(--border-color);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }
    .spec-card-icon {
      width: 42px;
      height: 42px;
      border-radius: 6px;
      background: rgba(0, 229, 153, 0.08);
      border: 1px solid rgba(0, 229, 153, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 700;
      font-family: var(--mono-stack);
      margin-bottom: 20px;
    }
    .spec-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .spec-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .spec-metric {
      font-family: var(--mono-stack);
      font-size: 13px;
      color: var(--cyan);
      border-top: 1px dashed var(--border-subtle);
      padding-top: 12px;
      display: flex;
      justify-content: space-between;
    }

    /* 板块3: 工业测量仪风格对比表 */
    .benchmark-table-wrapper {
      background: var(--bg-panel);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .benchmark-table th, .benchmark-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 14px;
    }
    .benchmark-table th {
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-dim);
      font-family: var(--mono-stack);
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .benchmark-table tr:hover td {
      background: rgba(255, 255, 255, 0.015);
    }
    .val-highlight {
      color: var(--accent);
      font-weight: 600;
      font-family: var(--mono-stack);
    }
    .val-dim {
      color: var(--text-dim);
      font-family: var(--mono-stack);
    }

    /* 板块4: 资讯/动态专栏 (CMS 循环列表) */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .article-card:hover {
      border-color: var(--border-color);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card);
    }
    .article-thumb {
      width: 100%;
      height: 180px;
      overflow: hidden;
      background: var(--bg-card);
    }
    .article-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .article-card:hover .article-thumb img {
      transform: scale(1.05);
    }
    .article-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .article-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
      margin-bottom: 10px;
    }
    .article-tag {
      color: var(--accent);
      background: rgba(0, 229, 153, 0.08);
      padding: 2px 6px;
      border-radius: 3px;
    }
    .article-body h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 10px;
      line-height: 1.45;
      color: var(--text-main);
    }
    .article-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .read-more-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .read-more-link:hover {
      text-decoration: underline;
    }
    .empty-state {
      padding: 48px;
      text-align: center;
      background: var(--bg-panel);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius);
      color: var(--text-dim);
      font-family: var(--mono-stack);
      grid-column: 1 / -1;
    }

    /* 板块5: 图文交错 - 分布式加速方案 */
    .solution-split {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
    }
    .solution-img-frame {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .solution-img-frame::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      box-shadow: inset 0 0 40px rgba(11, 15, 23, 0.6);
      pointer-events: none;
    }
    .solution-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }
    .solution-point-item {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      padding: 16px;
    }
    .solution-point-item h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .point-indicator {
      width: 8px;
      height: 8px;
      border-radius: 2px;
      background: var(--accent);
    }
    .solution-point-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块6: 链路冗余与防丢包保障规范 (三列卡片) */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .protocol-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px;
      position: relative;
    }
    .protocol-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 28px;
      width: 40px;
      height: 2px;
      background: var(--accent);
    }
    .protocol-num {
      font-family: var(--mono-stack);
      font-size: 13px;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .protocol-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .protocol-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块7: 算力调度高频问答 FAQ */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .faq-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
    }
    .faq-item h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-item h4::before {
      content: 'Q';
      color: var(--accent);
      font-family: var(--mono-stack);
      font-size: 14px;
      font-weight: 700;
    }
    .faq-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块8: 业务转化与接入支持表单 */
    .action-hub-section {
      background: radial-gradient(circle at 50% 10%, rgba(0, 229, 153, 0.05), transparent 70%), var(--bg-panel);
      border-top: 1px solid var(--border-color);
    }
    .action-box {
      max-width: 760px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-card);
    }
    .action-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .form-group input, .form-group select {
      background: var(--bg-dark);
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      padding: 12px 16px;
      color: var(--text-main);
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-group input:focus, .form-group select:focus {
      border-color: var(--accent);
      box-shadow: 0 0 10px var(--accent-glow);
    }
    .form-submit-btn {
      width: 100%;
      background: var(--accent);
      color: #04100c;
      font-weight: 700;
      font-size: 15px;
      padding: 14px 24px;
      border-radius: 6px;
      border: none;
      cursor: pointer;
      box-shadow: 0 0 18px var(--accent-glow);
      transition: all 0.25s ease;
      margin-top: 12px;
    }
    .form-submit-btn:hover {
      background: #1bf7ac;
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(0, 229, 153, 0.4);
    }

    /* 页脚 */
    .site-footer {
      background: #070a10;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: var(--text-main);
      font-weight: 600;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }
    .footer-legal {
      display: flex;
      gap: 20px;
      color: var(--text-dim);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .article-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solution-split {
        grid-template-columns: 1fr;
      }
      .footer-matrix {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: inline-block;
      }
      .flagship-strip-nav {
        flex-direction: column;
        align-items: stretch;
      }
      .strip-items {
        justify-content: flex-start;
      }
      .grid-4, .grid-3, .article-grid, .faq-grid {
        grid-template-columns: 1fr;
      }
      .action-form-grid {
        grid-template-columns: 1fr;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .flagship-header-box h1 {
        font-size: 28px;
      }
    }

/* roulang page: category4 */
:root {
      --bg-dark: #0b0f17;
      --bg-panel: #111827;
      --bg-card: #162032;
      --bg-card-hover: #1c2a42;
      --accent: #00e599;
      --accent-glow: rgba(0, 229, 153, 0.25);
      --accent-emerald: #10b981;
      --cyan: #06b6d4;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(0, 229, 153, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --warn: #f59e0b;
      --radius: 8px;
      --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono-stack: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.6);
      --shadow-glow: 0 0 25px rgba(0, 229, 153, 0.2);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.96) 0%, rgba(17, 24, 39, 0.94) 100%);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.02em;
    }
    .brand-badge {
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 3px;
      box-shadow: 0 0 12px var(--accent);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 4px;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links a.active {
      color: var(--accent);
      font-weight: 600;
      background: rgba(0, 229, 153, 0.06);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #04100c;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 6px;
      box-shadow: 0 0 15px var(--accent-glow);
      border: 1px solid var(--accent);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-glow:hover {
      background: #1bf7ac;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 229, 153, 0.45);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 6px;
      border: 1px solid var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
    }

    /* 通用板块与排版 */
    section {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-head.center {
      text-align: center;
      max-width: 860px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      font-family: var(--mono-stack);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      border: 1px solid rgba(0, 229, 153, 0.2);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. 分类主标题区：轻量横幅仪表 */
    .cat-hero-banner {
      background: linear-gradient(180deg, #131d2e 0%, #0d1422 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 56px 0 52px;
      position: relative;
      overflow: hidden;
    }
    .cat-hero-banner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), transparent);
    }
    .cat-hero-grid {
      display: grid;
      grid-template-columns: 1.35fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .breadcrumbs {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 16px;
      font-family: var(--mono-stack);
    }
    .breadcrumbs a {
      color: var(--text-muted);
    }
    .breadcrumbs a:hover {
      color: var(--accent);
    }
    .cat-hero-content h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      background: linear-gradient(135deg, #ffffff 65%, #94a3b8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-hero-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.8;
    }
    .cat-stats-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    .stats-grid-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .stat-mini-box {
      background: rgba(11, 15, 23, 0.6);
      border: 1px solid var(--border-subtle);
      padding: 16px;
      border-radius: 6px;
    }
    .stat-val {
      font-family: var(--mono-stack);
      font-size: 26px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 2. 核心服务水平协议卡片 */
    .sla-cards-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .sla-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px 24px;
      position: relative;
      transition: all 0.3s ease;
    }
    .sla-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
    }
    .sla-tier {
      font-family: var(--mono-stack);
      font-size: 12px;
      color: var(--cyan);
      background: rgba(6, 182, 212, 0.1);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 16px;
    }
    .sla-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .sla-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .sla-features {
      list-style: none;
      border-top: 1px solid var(--border-subtle);
      padding-top: 16px;
    }
    .sla-features li {
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .sla-features li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 3. 多区域合规接入协议与标准 */
    .spec-protocol-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .protocol-visual {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .protocol-visual img {
      width: 100%;
      height: 280px;
      object-fit: cover;
    }
    .protocol-console {
      padding: 20px;
      background: #0d1422;
      border-top: 1px solid var(--border-subtle);
      font-family: var(--mono-stack);
      font-size: 13px;
      color: #94a3b8;
    }
    .console-line {
      margin-bottom: 6px;
    }
    .console-line .code-green {
      color: var(--accent);
    }
    .console-line .code-cyan {
      color: var(--cyan);
    }
    .protocol-points {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .protocol-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      padding: 20px;
      border-radius: var(--radius);
    }
    .protocol-item h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .protocol-item h3 span {
      font-family: var(--mono-stack);
      font-size: 13px;
      color: var(--accent);
    }
    .protocol-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 节点异常巡检与监测机制 */
    .patrol-dashboard-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .patrol-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px 24px;
      position: relative;
    }
    .patrol-box-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .patrol-status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-family: var(--mono-stack);
      font-size: 12px;
      color: var(--accent);
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }
    .patrol-box h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .patrol-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .patrol-metric-bar {
      height: 6px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 3px;
      overflow: hidden;
      margin-bottom: 8px;
    }
    .metric-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--cyan), var(--accent));
    }
    .metric-desc {
      font-size: 12px;
      color: var(--text-dim);
      display: flex;
      justify-content: space-between;
      font-family: var(--mono-stack);
    }

    /* 5. 技术生态集成接口网关面板 */
    .gateway-integration {
      background: linear-gradient(180deg, #111827 0%, #0b0f17 100%);
    }
    .gateway-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      align-items: center;
    }
    .gateway-info h2 {
      font-size: 28px;
      margin-bottom: 16px;
    }
    .gateway-info p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .gateway-params-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .gateway-params-list li {
      font-size: 14px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .gateway-params-list li span {
      font-family: var(--mono-stack);
      color: var(--accent);
      background: rgba(0, 229, 153, 0.08);
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
    }
    .code-mock-box {
      background: #06090e;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .code-mock-header {
      background: #0f1623;
      padding: 12px 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-subtle);
      font-family: var(--mono-stack);
      font-size: 12px;
      color: var(--text-dim);
    }
    .code-mock-body {
      padding: 20px;
      font-family: var(--mono-stack);
      font-size: 13px;
      line-height: 1.6;
      color: #94a3b8;
    }
    .code-mock-body pre {
      white-space: pre-wrap;
      word-break: break-word;
    }

    /* 6. CMS 动态规范/支持资讯区 */
    .articles-stream-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-stream-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .article-stream-card:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }
    .article-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
      font-size: 12px;
      font-family: var(--mono-stack);
    }
    .article-tag {
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .article-date {
      color: var(--text-dim);
    }
    .article-stream-card h3 {
      font-size: 18px;
      font-weight: 600;
      line-height: 1.4;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .article-stream-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .article-stream-card .read-more {
      font-size: 13px;
      color: var(--accent);
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .empty-cms-box {
      grid-column: 1 / -1;
      text-align: center;
      padding: 60px 20px;
      background: var(--bg-panel);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius);
      color: var(--text-muted);
      font-family: var(--mono-stack);
      font-size: 14px;
    }

    /* 7. 应急容灾与多中心协同演练 */
    .dr-process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .dr-step-box {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .dr-step-num {
      font-family: var(--mono-stack);
      font-size: 28px;
      font-weight: 800;
      color: rgba(0, 229, 153, 0.2);
      margin-bottom: 8px;
    }
    .dr-step-box h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .dr-step-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. 运维保障与接入解答 FAQ */
    .faq-accordion {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item:hover {
      border-color: rgba(0, 229, 153, 0.3);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question::after {
      content: '+';
      font-family: var(--mono-stack);
      font-size: 20px;
      color: var(--accent);
      transition: transform 0.2s;
    }
    .faq-item.open .faq-question::after {
      content: '-';
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      display: none;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }
    .faq-item.open .faq-answer {
      display: block;
    }

    /* 9. 支持接入与工程师联络落地表单 */
    .support-form-section {
      background: linear-gradient(180deg, #0d1422 0%, #0b0f17 100%);
    }
    .support-form-box {
      max-width: 800px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-glow);
    }
    .form-grid-two {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-bottom: 20px;
    }
    .form-field label {
      font-size: 13px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .form-field input, .form-field select, .form-field textarea {
      background: #0b0f17;
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      padding: 12px 14px;
      color: var(--text-main);
      font-family: var(--font-stack);
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-field input:focus, .form-field select:focus, .form-field textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 10px rgba(0, 229, 153, 0.2);
    }
    .form-field textarea {
      resize: vertical;
      min-height: 100px;
    }
    .form-submit-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .form-note {
      font-size: 12px;
      color: var(--text-dim);
      font-family: var(--mono-stack);
    }

    /* 页脚 */
    .site-footer {
      background: #070a10;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-matrix {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-legal {
      display: flex;
      gap: 20px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .sla-cards-grid, .dr-process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .articles-stream-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-matrix {
        grid-template-columns: 1fr 1fr;
      }
      .cat-hero-grid, .spec-protocol-grid, .gateway-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .patrol-dashboard-grid {
        grid-template-columns: 1fr;
      }
      .dr-process-grid, .sla-cards-grid, .articles-stream-grid {
        grid-template-columns: 1fr;
      }
      .form-grid-two {
        grid-template-columns: 1fr;
      }
      .footer-matrix {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .footer-legal {
        justify-content: center;
      }
    }