/* roulang page: index */
:root {
      --primary: #0F172A;
      --primary-light: #1E293B;
      --brand: #0284C7;
      --brand-hover: #0369A1;
      --accent: #F59E0B;
      --accent-hover: #D97706;
      --bg-base: #F8FAFC;
      --bg-surface: #FFFFFF;
      --bg-alt: #F1F5F9;
      --bg-dark: #090D16;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-light: #E2E8F0;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 12px 28px -4px rgba(2, 132, 199, 0.15);
      --font-sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航组件 */
    .top-bar {
      background-color: var(--primary);
      color: var(--text-muted);
      font-size: 13px;
      border-bottom: 1px solid var(--border-dark);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #10B981;
      font-weight: 500;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
    }
    
    .site-header {
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .logo-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--brand), var(--primary));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--primary-light);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--brand);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--brand);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 基础通用组件 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-brand {
      background-color: var(--brand);
      color: #FFFFFF;
    }
    .btn-brand:hover {
      background-color: var(--brand-hover);
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
      transform: translateY(-2px);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
      transform: translateY(-2px);
    }
    .btn-outline-white {
      background: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.3);
    }
    .btn-outline-white:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }
    .btn-outline-brand {
      background: transparent;
      color: var(--brand);
      border-color: var(--brand);
    }
    .btn-outline-brand:hover {
      background: rgba(2, 132, 199, 0.05);
      border-color: var(--brand-hover);
    }

    .section-pad {
      padding: 88px 0;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 56px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background-color: rgba(2, 132, 199, 0.1);
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 16px;
      line-height: 1.7;
    }

    /* 1. 首屏全宽沉浸 KV (Hero) */
    .hero-banner {
      position: relative;
      background: linear-gradient(135deg, rgba(9, 13, 22, 0.88) 0%, rgba(15, 23, 42, 0.82) 100%), url('/assets/images/d7a985303e5a7407.webp') center/cover no-repeat;
      color: #FFFFFF;
      padding: 100px 0 90px;
      min-height: 600px;
      display: flex;
      align-items: center;
    }
    .hero-content {
      max-width: 860px;
    }
    .hero-h1 {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      color: #38BDF8;
    }
    .hero-p {
      font-size: 17px;
      line-height: 1.8;
      color: var(--text-light);
      margin-bottom: 36px;
      max-width: 800px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-countdown-strip {
      display: inline-flex;
      align-items: center;
      gap: 20px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 14px 24px;
      backdrop-filter: blur(8px);
    }
    .countdown-item {
      display: flex;
      flex-direction: column;
    }
    .countdown-val {
      font-size: 22px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
    }
    .countdown-lbl {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 2. 核心架构与技术参数 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .arch-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 24px;
    }
    .arch-feature-item {
      display: flex;
      gap: 14px;
    }
    .arch-icon {
      width: 28px;
      height: 28px;
      background: rgba(2, 132, 199, 0.1);
      color: var(--brand);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
      margin-top: 3px;
    }
    .param-box {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }
    .param-row {
      display: flex;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .param-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .param-key {
      color: var(--text-muted);
      font-size: 14px;
    }
    .param-val {
      font-weight: 700;
      color: var(--primary);
    }

    /* 3. 多维服务与工具矩阵 (Service Matrix 3x2) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-md);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(2, 132, 199, 0.4);
    }
    .card-badge {
      width: 48px;
      height: 48px;
      background-color: rgba(2, 132, 199, 0.08);
      color: var(--brand);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
      font-weight: 800;
    }
    .matrix-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary);
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .matrix-card-link {
      font-size: 14px;
      font-weight: 700;
      color: var(--brand);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 4. 指标看板大屏 (Metrics Dashboard) */
    .dark-section {
      background: linear-gradient(180deg, var(--bg-dark) 0%, #111827 100%);
      color: #FFFFFF;
      position: relative;
    }
    .dark-section .section-title {
      color: #FFFFFF;
    }
    .dark-section .section-desc {
      color: #94A3B8;
    }
    .dashboard-panel {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      backdrop-filter: blur(10px);
    }
    .metric-item {
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0 16px;
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-num {
      font-size: 42px;
      font-weight: 800;
      color: #38BDF8;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-num span {
      font-size: 20px;
      font-weight: 600;
      color: var(--accent);
      margin-left: 2px;
    }
    .metric-title {
      font-size: 15px;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 13px;
      color: #94A3B8;
    }

    /* 5. 核心产品与版本选型 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      align-items: stretch;
    }
    .pricing-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s;
    }
    .pricing-card.featured {
      border-color: var(--brand);
      box-shadow: 0 8px 30px rgba(2, 132, 199, 0.15);
      transform: scale(1.02);
    }
    .featured-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--brand);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 20px;
    }
    .pricing-header {
      text-align: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 24px;
      margin-bottom: 24px;
    }
    .pricing-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
    }
    .pricing-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
    }
    .pricing-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .pricing-list li {
      font-size: 14px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .pricing-list li::before {
      content: '✓';
      color: #10B981;
      font-weight: 800;
    }

    /* 6. 行业方案与深色对比区块 */
    .solution-box {
      background-color: var(--primary);
      border-radius: var(--radius-lg);
      padding: 56px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .compare-table {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .compare-header {
      display: grid;
      grid-template-columns: 1fr 1fr;
      background: rgba(255, 255, 255, 0.08);
      padding: 14px 20px;
      font-weight: 700;
      font-size: 14px;
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      padding: 14px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
    }
    .compare-row:last-child {
      border-bottom: none;
    }
    .compare-bad {
      color: #F87171;
    }
    .compare-good {
      color: #34D399;
      font-weight: 600;
    }

    /* 7. 标杆案例与落地实效 */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .case-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }
    .case-img-wrap {
      height: 220px;
      overflow: hidden;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-tag {
      font-size: 12px;
      color: var(--brand);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .case-title {
      font-size: 19px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .case-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .case-stat-row {
      display: flex;
      gap: 20px;
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }
    .case-stat-val {
      font-size: 18px;
      font-weight: 800;
      color: var(--brand);
    }
    .case-stat-lbl {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 8. 关键数据统计通栏 */
    .strip-counter {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0;
    }
    .strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .strip-num {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .strip-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 9. 发展历程时间轴 (Timeline) */
    .timeline {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding: 20px 0;
    }
    .timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background-color: var(--border-color);
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 40px;
      width: 50%;
      padding-right: 40px;
    }
    .timeline-item:nth-child(even) {
      margin-left: 50%;
      padding-right: 0;
      padding-left: 40px;
    }
    .timeline-dot {
      position: absolute;
      top: 0;
      right: -8px;
      width: 16px;
      height: 16px;
      background-color: var(--brand);
      border: 3px solid #fff;
      border-radius: 50%;
      box-shadow: 0 0 0 2px var(--brand);
    }
    .timeline-item:nth-child(even) .timeline-dot {
      right: auto;
      left: -8px;
    }
    .timeline-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }
    .timeline-year {
      font-size: 13px;
      font-weight: 800;
      color: var(--brand);
      margin-bottom: 6px;
    }
    .timeline-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .timeline-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 用户评价矩阵 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }
    .testi-stars {
      color: var(--accent);
      margin-bottom: 14px;
      font-size: 15px;
    }
    .testi-content {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .testi-avatar {
      width: 42px;
      height: 42px;
      background-color: var(--bg-alt);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--brand);
    }
    .testi-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
    }
    .testi-meta p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 行业动态与资讯摘要 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--brand);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-more {
      font-size: 13px;
      font-weight: 700;
      color: var(--brand);
    }

    /* 12. 常见问题手风琴 (FAQ) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-summary {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: '+';
      font-size: 20px;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.2s;
    }
    details[open] .faq-summary::after {
      content: '−';
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 13. 转化表单与服务保障 */
    .cta-section {
      background: linear-gradient(135deg, var(--primary) 0%, #0c192c 100%);
      color: #FFFFFF;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .cta-assurance-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 28px;
    }
    .cta-assure-item {
      display: flex;
      gap: 16px;
    }
    .assure-icon {
      width: 32px;
      height: 32px;
      background: rgba(2, 132, 199, 0.2);
      color: #38BDF8;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 14px;
    }
    .assure-text h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 4px;
      color: #FFFFFF;
    }
    .assure-text p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }
    
    .form-panel {
      background-color: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 40px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
      color: var(--text-main);
    }
    .form-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .form-subtitle {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-light);
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #F8FAFC;
      transition: all 0.25s ease;
    }
    .form-input:focus, .form-select:focus {
      outline: none;
      border-color: var(--brand);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
    }
    .form-submit-btn {
      width: 100%;
      margin-top: 10px;
      padding: 14px;
      font-size: 15px;
    }

    /* 页脚组件 */
    .site-footer {
      background-color: #06090E;
      color: #94A3B8;
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: #38BDF8;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 移动端菜单控制 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary);
      cursor: pointer;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .matrix-grid, .pricing-grid, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .dashboard-panel, .strip-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid, .solution-box, .cta-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .section-pad {
        padding: 56px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .hero-p {
        font-size: 15px;
      }
      .matrix-grid, .pricing-grid, .testimonial-grid, .news-grid, .case-grid {
        grid-template-columns: 1fr;
      }
      .dashboard-panel, .strip-grid {
        grid-template-columns: 1fr;
      }
      .timeline::before {
        left: 20px;
      }
      .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
      }
      .timeline-item:nth-child(even) {
        margin-left: 0;
        padding-left: 50px;
      }
      .timeline-dot, .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }