/* roulang page: index */
:root {
      --primary: #00D26A;
      --primary-hover: #00B359;
      --secondary: #0B132B;
      --secondary-alt: #1C2541;
      --accent: #FF5E1E;
      --accent-hover: #E04E15;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B132B;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-light: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 6px 20px -2px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 12px 30px -4px rgba(0, 0, 0, 0.1);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    input, button, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 顶部导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 1px 10px rgba(0,0,0,0.03);
    }

    .top-bar {
      background-color: var(--secondary);
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 0.4rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

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

    .top-bar-info span {
      margin-right: 1.5rem;
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    .top-bar-links a {
      color: #CBD5E1;
      margin-left: 1rem;
    }

    .top-bar-links a:hover {
      color: var(--primary);
    }

    .main-nav {
      padding: 0.85rem 0;
    }

    .main-nav .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--secondary);
      letter-spacing: -0.02em;
    }

    .logo-badge {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), #00A653);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-weight: 900;
      font-size: 1.1rem;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 1.75rem;
    }

    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 0.4rem 0;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--secondary);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: width 0.2s ease;
    }

    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.65rem 1.4rem;
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
      min-height: 44px;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #032814;
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(0, 210, 106, 0.35);
      transform: translateY(-2px);
    }

    .btn-secondary {
      background-color: transparent;
      border-color: var(--border-light);
      color: var(--secondary);
    }

    .btn-secondary:hover {
      background-color: #F1F5F9;
      border-color: #CBD5E1;
    }

    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
    }

    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(255, 94, 30, 0.35);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--secondary);
      cursor: pointer;
      width: 44px;
      height: 44px;
    }

    /* 板块通用布局 */
    .section-wrap {
      padding: 5rem 0;
      position: relative;
    }

    .section-light {
      background-color: var(--bg-light);
    }

    .section-white {
      background-color: var(--bg-white);
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: #FFFFFF;
    }

    .section-header {
      max-width: 760px;
      margin: 0 auto 3.5rem auto;
      text-align: center;
    }

    .section-tag {
      display: inline-block;
      padding: 0.25rem 0.85rem;
      background-color: rgba(0, 210, 106, 0.12);
      color: #008744;
      font-size: 0.8125rem;
      font-weight: 700;
      border-radius: 9999px;
      margin-bottom: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .section-dark .section-tag {
      background-color: rgba(0, 210, 106, 0.2);
      color: var(--primary);
    }

    .section-title {
      font-size: 2.125rem;
      line-height: 1.3;
      font-weight: 700;
      margin-bottom: 1rem;
      letter-spacing: -0.01em;
    }

    .section-dark .section-title {
      color: #FFFFFF;
    }

    .section-subtitle {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .section-dark .section-subtitle {
      color: var(--text-light);
    }

    /* 板块 1: Hero Banner */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #070F22 0%, #0B132B 55%, #15254A 100%);
      color: #FFFFFF;
      padding: 4.5rem 0 3.5rem 0;
      overflow: hidden;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      opacity: 0.18;
      background-image: url('/assets/images/982119dc55c6e6ed.webp');
      background-size: cover;
      background-position: center;
      mix-blend-mode: overlay;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
    }

    .hero-meta-bar {
      display: inline-flex;
      align-items: center;
      gap: 0.75rem;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 9999px;
      padding: 0.35rem 1.1rem;
      font-size: 0.875rem;
      color: #E2E8F0;
      margin-bottom: 1.75rem;
    }

    .hero-meta-badge {
      background: var(--primary);
      color: #032814;
      font-weight: 700;
      font-size: 0.75rem;
      padding: 0.15rem 0.5rem;
      border-radius: 4px;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.22;
      margin-bottom: 1.5rem;
      letter-spacing: -0.02em;
    }

    .hero-title .highlight {
      color: var(--primary);
      text-shadow: 0 0 25px rgba(0, 210, 106, 0.3);
    }

    .hero-lead {
      font-size: 1.125rem;
      color: #CBD5E1;
      max-width: 860px;
      line-height: 1.8;
      margin-bottom: 2.5rem;
    }

    /* 路线图预告节点条 */
    .roadmap-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.25rem;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      margin-bottom: 2.5rem;
      backdrop-filter: blur(8px);
    }

    .roadmap-node {
      border-left: 2px solid rgba(0, 210, 106, 0.4);
      padding-left: 1rem;
    }

    .roadmap-node.active {
      border-left-color: var(--primary);
    }

    .node-version {
      font-size: 0.8125rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 0.25rem;
    }

    .node-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 0.25rem;
    }

    .node-status {
      font-size: 0.775rem;
      color: #94A3B8;
    }

    /* 订阅与操作区 */
    .hero-action-box {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 1.5rem;
      justify-content: space-between;
    }

    .hero-btns {
      display: flex;
      gap: 1rem;
    }

    .hero-subscribe-form {
      display: flex;
      gap: 0.5rem;
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 0.35rem;
      max-width: 480px;
      width: 100%;
    }

    .hero-subscribe-form input {
      background: transparent;
      border: none;
      color: #FFFFFF;
      padding: 0.5rem 1rem;
      flex: 1;
      outline: none;
      font-size: 0.9rem;
    }

    .hero-subscribe-form input::placeholder {
      color: #94A3B8;
    }

    /* 板块 2: 行业痛点对比区 */
    .challenges-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }

    .challenge-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .challenge-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background-color: #F1F5F9;
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }

    .card-icon.danger {
      background-color: #FEE2E2;
      color: #DC2626;
    }

    .challenge-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--secondary);
    }

    .challenge-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }

    .contrast-box {
      margin-top: auto;
      background-color: #F8FAFC;
      border-left: 3px solid var(--primary);
      padding: 0.85rem 1rem;
      font-size: 0.875rem;
      color: #334155;
    }

    /* 板块 3: 技术架构示意 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3.5rem;
      align-items: center;
    }

    .arch-content h3 {
      font-size: 1.85rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      color: var(--secondary);
      line-height: 1.35;
    }

    .arch-content p {
      color: var(--text-muted);
      font-size: 1rem;
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .spec-badges {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
      margin-bottom: 2rem;
    }

    .spec-item {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      padding: 1rem 1.25rem;
      border-radius: var(--radius-sm);
    }

    .spec-number {
      font-size: 1.35rem;
      font-weight: 800;
      color: #008744;
      margin-bottom: 0.2rem;
    }

    .spec-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .arch-preview {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-lg);
    }

    /* 板块 4: 核心优势六宫格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }

    .adv-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      position: relative;
      transition: all 0.3s ease;
    }

    .adv-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .adv-no {
      position: absolute;
      top: 1.5rem;
      right: 1.5rem;
      font-size: 1.75rem;
      font-weight: 900;
      color: #F1F5F9;
      line-height: 1;
    }

    .adv-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.85rem;
      color: var(--secondary);
    }

    .adv-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 5: 热门服务产品规格 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .product-box {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .product-box:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #CBD5E1;
    }

    .product-box.highlighted {
      border: 2px solid var(--primary);
      position: relative;
    }

    .product-head {
      padding: 2rem 2rem 1.5rem 2rem;
      border-bottom: 1px solid var(--border-light);
      background-color: #FCFDFD;
    }

    .product-name {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 0.5rem;
    }

    .product-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .product-body {
      padding: 2rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .product-features {
      list-style: none;
      margin-bottom: 2rem;
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
    }

    .product-features li {
      font-size: 0.925rem;
      color: #334155;
      display: flex;
      align-items: flex-start;
      gap: 0.65rem;
    }

    .product-features li::before {
      content: '✓';
      color: var(--primary);
      font-weight: 800;
      line-height: 1;
      margin-top: 0.2rem;
    }

    /* 板块 6: 实施路径工作流 */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }

    .workflow-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 2rem 1.5rem;
      position: relative;
    }

    .step-index {
      font-size: 2.25rem;
      font-weight: 900;
      color: #E2E8F0;
      margin-bottom: 0.75rem;
      line-height: 1;
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--secondary);
    }

    .step-detail {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 7: 深色案例区 */
    .case-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 3rem;
      align-items: center;
    }

    .case-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .case-content h3 {
      font-size: 1.85rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      line-height: 1.35;
    }

    .case-content p {
      color: var(--text-light);
      font-size: 0.975rem;
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .case-metrics-bar {
      display: flex;
      gap: 2.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .case-metric-val {
      font-size: 1.65rem;
      font-weight: 800;
      color: var(--primary);
    }

    .case-metric-lbl {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 板块 8: 典型业务场景 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .scenario-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .scenario-thumb {
      height: 190px;
      overflow: hidden;
    }

    .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: 1.75rem;
    }

    .scenario-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--secondary);
    }

    .scenario-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 9: 关键统计指标条 */
    .stats-section {
      background: #070F22;
      color: #FFFFFF;
      padding: 3.5rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }

    .stat-number {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.1;
      color: var(--primary);
      margin-bottom: 0.5rem;
      letter-spacing: -0.02em;
    }

    .stat-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 0.25rem;
    }

    .stat-desc {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 板块 10: 客户证言区 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .testi-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .quote-icon {
      font-size: 2.5rem;
      line-height: 1;
      color: rgba(0, 210, 106, 0.25);
      font-family: Georgia, serif;
      margin-bottom: 0.75rem;
    }

    .testi-content {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.8;
      margin-bottom: 1.5rem;
      flex: 1;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 0.85rem;
      border-top: 1px solid #F1F5F9;
      padding-top: 1.25rem;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--secondary);
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--secondary);
    }

    .author-role {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 板块 11: 动态资讯简报 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }

    .news-card:hover {
      border-color: #CBD5E1;
      transform: translateY(-3px);
    }

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      color: var(--text-light);
      margin-bottom: 0.85rem;
    }

    .news-badge {
      color: #008744;
      font-weight: 600;
    }

    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 0.75rem;
      line-height: 1.45;
    }

    .news-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 12: 常见解答手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .faq-summary {
      padding: 1.25rem 1.75rem;
      font-weight: 600;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      color: var(--secondary);
      list-style: none;
    }

    .faq-summary::-webkit-details-marker {
      display: none;
    }

    .faq-summary::after {
      content: '+';
      font-size: 1.35rem;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.2s ease;
    }

    details[open] .faq-summary::after {
      content: '−';
      color: var(--primary);
    }

    .faq-content {
      padding: 0 1.75rem 1.5rem 1.75rem;
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid #F8FAFC;
    }

    /* 板块 13: 底部收口行动召唤 */
    .cta-card {
      background: linear-gradient(135deg, #070F22 0%, #15254A 100%);
      border-radius: var(--radius-lg);
      padding: 4rem 2rem;
      text-align: center;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .cta-card h2 {
      font-size: 2.25rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
    }

    .cta-card p {
      max-width: 680px;
      margin: 0 auto 2.25rem auto;
      color: #CBD5E1;
      font-size: 1.05rem;
    }

    .cta-form-row {
      max-width: 520px;
      margin: 0 auto;
      display: flex;
      gap: 0.75rem;
    }

    .cta-form-row input {
      flex: 1;
      padding: 0.75rem 1.25rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      outline: none;
    }

    .cta-form-row input::placeholder {
      color: #94A3B8;
    }

    /* 页脚 */
    .site-footer {
      background-color: #050B18;
      color: #94A3B8;
      padding: 4rem 0 2rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }

    .footer-brand h4 {
      color: #FFFFFF;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }

    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 1.25rem;
      color: #64748B;
    }

    .footer-nav h5 {
      color: #F8FAFC;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 1.25rem;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.65rem;
    }

    .footer-links a:hover {
      color: var(--primary);
    }

    .footer-contact-item {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 0.65rem;
      color: #CBD5E1;
    }

    .footer-bottom {
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      color: #64748B;
      font-size: 0.8125rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.25rem;
      }
      .roadmap-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .challenges-grid, .advantages-grid, .products-grid, .scenarios-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid, .case-card {
        grid-template-columns: 1fr;
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .nav-links {
        display: none;
      }
      .nav-actions {
        display: none;
      }
      .challenges-grid, .advantages-grid, .products-grid, .scenarios-grid, .testimonials-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: 1fr;
      }
      .hero-subscribe-form {
        flex-direction: column;
      }
      .cta-form-row {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.65rem;
      }
    }