/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-dark: #0A3663;
      --accent-blue: #00A8E8;
      --accent-green: #00C49F;
      --dark-bg: #0B132B;
      --dark-card: #141E3C;
      --light-bg: #F8FAFC;
      --border-color: #E2E8F0;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 20px rgba(15, 76, 129, 0.08);
      --shadow-lg: 0 16px 36px rgba(15, 76, 129, 0.14);
      --container-max: 1240px;
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

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

    /* 顶部双行导航 */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      padding: 6px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary-dark);
      font-weight: 500;
    }
    .top-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent-green);
      box-shadow: 0 0 0 2px rgba(0, 196, 159, 0.2);
    }
    .top-contacts {
      display: flex;
      gap: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--accent-blue));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: #334155;
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
    }
    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(15, 76, 129, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(15, 76, 129, 0.35);
    }
    .btn-accent {
      background-color: var(--accent-blue);
      color: #fff;
      box-shadow: 0 4px 12px rgba(0, 168, 232, 0.25);
    }
    .btn-accent:hover {
      background-color: #0093cc;
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--border-color);
      background-color: #fff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: #F8FAFC;
    }

    /* 移动端菜单按钮 */
    .mobile-toggle {
      display: none;
      font-size: 22px;
      background: none;
      border: none;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 通用 Section 规范 */
    .section {
      padding: 85px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--light-bg);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-dark {
      background-color: var(--dark-bg);
      color: #F8FAFC;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: rgba(15, 76, 129, 0.08);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-dark .section-tag {
      background-color: rgba(0, 168, 232, 0.15);
      color: var(--accent-blue);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 蓝图：白皮书留资获客与核心价值区 */
    .hero-section {
      position: relative;
      padding: 90px 0 100px;
      background: linear-gradient(135deg, #0A2540 0%, #0F4C81 100%);
      color: #fff;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/fbd987e590d1f314.png');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 1fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: #E2E8F0;
      margin-bottom: 30px;
    }
    .hero-metrics-pill {
      display: flex;
      gap: 20px;
      margin-bottom: 35px;
      padding-top: 15px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-pill-item {
      display: flex;
      flex-direction: column;
    }
    .hero-pill-value {
      font-size: 26px;
      font-weight: 800;
      color: var(--accent-blue);
      font-family: Consolas, Monaco, monospace;
    }
    .hero-pill-label {
      font-size: 13px;
      color: #CBD5E1;
    }

    /* 白皮书留资卡片 */
    .hero-form-card {
      background: #FFFFFF;
      color: var(--text-main);
      padding: 36px;
      border-radius: var(--radius-lg);
      box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .hero-form-header {
      margin-bottom: 20px;
    }
    .hero-form-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background-color: #EBF5FF;
      padding: 4px 10px;
      border-radius: 4px;
    }
    .hero-form-title {
      font-size: 20px;
      font-weight: 700;
      margin-top: 10px;
      color: #0F172A;
    }
    .form-group {
      margin-bottom: 15px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: #475569;
    }
    .form-input {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s;
    }
    .form-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
    }
    .form-privacy-note {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 10px;
      line-height: 1.5;
    }

    /* 2. 核心架构与多云治理区 (Overview) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .overview-image-wrapper {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .overview-content h3 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .overview-feature-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .overview-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .overview-feature-icon {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      background: #EBF8FF;
      color: var(--accent-blue);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      margin-top: 2px;
    }

    /* 3. 六维核心优势矩阵区 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .matrix-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: transparent;
      transition: background 0.3s ease;
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(15, 76, 129, 0.2);
    }
    .matrix-card:hover::before {
      background: linear-gradient(90deg, var(--primary), var(--accent-blue));
    }
    .matrix-icon {
      width: 50px;
      height: 50px;
      border-radius: var(--radius-sm);
      background-color: #F1F5F9;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .matrix-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .matrix-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 热门云产品与服务矩阵 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .product-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .product-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.03);
    }
    .featured-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 20px;
      letter-spacing: 0.5px;
    }
    .product-name {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .product-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      min-height: 48px;
    }
    .product-specs {
      background: var(--light-bg);
      border-radius: var(--radius-sm);
      padding: 16px;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .spec-item {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px dashed #CBD5E1;
    }
    .spec-item:last-child {
      border-bottom: none;
    }
    .spec-label {
      color: var(--text-muted);
    }
    .spec-val {
      font-weight: 600;
      color: var(--primary-dark);
    }

    /* 5. 深色技术底座架构区 */
    .arch-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .arch-flow-box {
      background-color: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 30px;
    }
    .arch-layer {
      border-left: 3px solid var(--accent-blue);
      padding-left: 20px;
      margin-bottom: 24px;
      position: relative;
    }
    .arch-layer:last-child {
      margin-bottom: 0;
    }
    .arch-layer-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--accent-blue);
      margin-bottom: 6px;
    }
    .arch-layer-desc {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 6. 行业解决方案 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scenario-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .scenario-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .scenario-thumb {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .scenario-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scenario-card:hover .scenario-thumb img {
      transform: scale(1.05);
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-tag-label {
      font-size: 12px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
      display: block;
    }
    .scenario-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .scenario-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 7. 硬核性能指标条 */
    .metrics-bar {
      background: linear-gradient(90deg, #0A2540 0%, #0F4C81 100%);
      color: #fff;
      padding: 50px 0;
    }
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-col {
      padding: 10px 15px;
      border-right: 1px solid rgba(255, 255, 255, 0.15);
    }
    .metric-col:last-child {
      border-right: none;
    }
    .metric-num {
      font-size: 40px;
      font-weight: 800;
      color: var(--accent-green);
      font-family: Consolas, Monaco, monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-lbl {
      font-size: 14px;
      color: #CBD5E1;
    }

    /* 8. 成功实践图文区 */
    .case-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .case-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .case-detail h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .case-quote {
      background: var(--light-bg);
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      font-size: 14px;
      font-style: italic;
      color: #334155;
      margin-bottom: 24px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .case-indicators {
      display: flex;
      gap: 30px;
    }
    .case-ind-num {
      font-size: 26px;
      font-weight: 700;
      color: var(--primary);
    }
    .case-ind-txt {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 9. 服务对比与差异化价值区 (Comparison) */
    .table-container {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, 
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background-color: #F8FAFC;
      font-weight: 700;
      color: #334155;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight-col {
      background-color: #F0F7FF;
      font-weight: 600;
      color: var(--primary);
    }
    .compare-table th.highlight-col {
      background-color: #E6F0FA;
      color: var(--primary-dark);
      font-size: 15px;
    }

    /* 10. 真实企业客户背书 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .testi-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .testi-text {
      font-size: 14px;
      color: #475569;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--light-bg);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid var(--border-color);
    }
    .testi-name {
      font-size: 14px;
      font-weight: 700;
    }
    .testi-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 动态资讯与行业研报卡片 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .news-date {
      font-size: 12px;
      color: var(--accent-blue);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 12. FAQ 原生手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item[open] {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-header {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: #0F172A;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-header::-webkit-details-marker {
      display: none;
    }
    .faq-icon {
      font-size: 14px;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    .faq-item[open] .faq-icon {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .faq-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px dashed transparent;
    }
    .faq-item[open] .faq-content {
      border-color: var(--border-color);
      padding-top: 14px;
    }

    /* 13. 企业级服务与安全保障区 (SLA) */
    .sla-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .sla-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .sla-icon {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #EBF8FF;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 14px;
    }
    .sla-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .sla-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 14. 全局高转化行动区 */
    .cta-banner {
      background: linear-gradient(135deg, #0A192F 0%, #0F4C81 100%);
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 60px 50px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .cta-content {
      position: relative;
      z-index: 2;
      max-width: 680px;
      margin: 0 auto;
      text-align: center;
    }
    .cta-title {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-desc {
      font-size: 15px;
      color: #CBD5E1;
      margin-bottom: 30px;
      line-height: 1.7;
    }
    .cta-form-inline {
      display: flex;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto 16px;
    }
    .cta-input {
      flex: 1;
      height: 48px;
      padding: 0 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.3);
      background: rgba(255, 255, 255, 0.95);
      font-size: 14px;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--accent-blue);
      box-shadow: 0 0 0 3px rgba(0, 168, 232, 0.25);
    }

    /* 页脚系统 */
    .site-footer {
      background-color: var(--dark-bg);
      color: #94A3B8;
      font-size: 14px;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand-title {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand-desc {
      font-size: 13px;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748B;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 底部固定转化条 */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(11, 19, 43, 0.95);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 12px 0;
      z-index: 999;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }
    .sticky-bar.visible {
      transform: translateY(0);
    }
    .sticky-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .sticky-info {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 14px;
    }
    .sticky-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .sticky-close {
      background: none;
      border: none;
      color: #94A3B8;
      cursor: pointer;
      font-size: 16px;
      padding: 4px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .matrix-grid,
      .product-grid,
      .scenarios-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .product-card.featured {
        transform: none;
      }
      .overview-grid,
      .arch-container,
      .case-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .sla-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        gap: 16px;
      }
      .nav-links.show {
        display: flex;
      }
      .header-cta .btn {
        display: none;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .hero-form-card {
        padding: 24px;
      }
      .matrix-grid,
      .product-grid,
      .scenarios-grid,
      .testimonial-grid,
      .news-grid,
      .metrics-row,
      .sla-grid {
        grid-template-columns: 1fr;
      }
      .metric-col {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-bottom: 15px;
      }
      .metric-col:last-child {
        border-bottom: none;
      }
      .cta-form-inline {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .sticky-info {
        display: none;
      }
    }