/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --primary-light: #eff6ff;
      --secondary: #0f172a;
      --accent: #059669;
      --accent-light: #ecfdf5;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --bg-main: #ffffff;
      --bg-alt: #f8fafc;
      --bg-dark: #0f172a;
      --bg-dark-card: #1e293b;
      --border-color: #e2e8f0;
      --border-dark: #334155;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-full: 9999px;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
      --max-width: 1280px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", 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-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 顶部提示条与导航 */
    .top-bar {
      background-color: #f1f5f9;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.8125rem;
      color: var(--text-muted);
      padding: 0.45rem 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-weight: 500;
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background-color: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2);
    }

    .site-header {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: box-shadow 0.2s ease;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--secondary);
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), #1d4ed8);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 1.8rem;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 0.4rem 0.2rem;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      right: 0;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }

    .header-cta-group {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.625rem 1.25rem;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
      color: #ffffff;
    }
    .btn-outline {
      border-color: var(--border-color);
      background-color: #ffffff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-dark {
      background-color: var(--secondary);
      color: #ffffff;
    }
    .btn-dark:hover {
      background-color: #1e293b;
      color: #ffffff;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 板块排版公用 */
    .section-spacing {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }
    .section-spacing-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding-top: 5rem;
      padding-bottom: 5rem;
    }
    .section-spacing-dark {
      background-color: var(--bg-dark);
      color: #ffffff;
      padding-top: 5.5rem;
      padding-bottom: 5.5rem;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 3.5rem;
    }
    .section-header h2 {
      font-size: 2.15rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 1rem;
      line-height: 1.3;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-header-dark h2 {
      color: #ffffff;
    }
    .section-header-dark p {
      color: var(--text-light);
    }
    .badge {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      background-color: var(--primary-light);
      color: var(--primary);
      margin-bottom: 0.85rem;
    }
    .badge-accent {
      background-color: var(--accent-light);
      color: var(--accent);
    }

    /* 1. Hero 卡片堆叠架构 */
    .hero-section {
      background: radial-gradient(circle at top right, #f1f5f9 0%, #ffffff 70%);
      padding: 4.5rem 0 5.5rem;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-intro {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 3rem;
    }
    .hero-intro h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--secondary);
      margin-bottom: 1.25rem;
    }
    .hero-intro p {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 2rem;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 1.25rem;
      margin-bottom: 2.5rem;
    }
    .hero-stack-container {
      display: grid;
      grid-template-columns: 1fr 2.2fr 1fr;
      align-items: center;
      gap: 1.5rem;
      position: relative;
      margin-top: 1rem;
    }
    .hero-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      box-shadow: var(--shadow-lg);
      transition: transform 0.3s ease;
    }
    .hero-card-side-left {
      transform: translateY(20px) rotate(-1.5deg);
      background: #f8fafc;
    }
    .hero-card-side-right {
      transform: translateY(20px) rotate(1.5deg);
      background: #f8fafc;
    }
    .hero-card-main {
      z-index: 2;
      box-shadow: var(--shadow-xl);
      border-color: #cbd5e1;
      padding: 1rem;
    }
    .hero-dashboard-img {
      border-radius: var(--radius-md);
      width: 100%;
      height: auto;
      object-fit: cover;
      border: 1px solid var(--border-color);
    }
    .card-stat-pill {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.85rem 1rem;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 0.75rem;
    }
    .card-stat-pill strong {
      display: block;
      color: var(--secondary);
      font-size: 1.1rem;
    }
    .card-stat-pill span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 2. 软件研发背景与体系架构 (brand-intro) */
    .brand-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .brand-image-wrap {
      position: relative;
    }
    .brand-image-wrap img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .brand-float-box {
      position: absolute;
      bottom: -1.5rem;
      right: -1rem;
      background: #ffffff;
      padding: 1.25rem 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      max-width: 260px;
    }
    .brand-content h3 {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 1.25rem;
      line-height: 1.35;
    }
    .brand-content p {
      color: var(--text-muted);
      margin-bottom: 1.25rem;
      font-size: 0.985rem;
      line-height: 1.75;
    }
    .feature-points {
      list-style: none;
      margin-top: 1.5rem;
    }
    .feature-points li {
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
      margin-bottom: 0.85rem;
      font-size: 0.9375rem;
      color: var(--text-main);
    }
    .bullet-check {
      color: var(--accent);
      font-weight: bold;
    }

    /* 3. 核心功能矩阵 (core-features) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .feature-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 0.75rem;
    }
    .feature-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 4. 细分场景矩阵 (solutions) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease;
    }
    .scenario-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }
    .scenario-cover {
      height: 200px;
      width: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 1.75rem;
    }
    .scenario-body h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--secondary);
    }
    .scenario-body p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
    }
    .scenario-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .tag-item {
      font-size: 0.75rem;
      background: #f1f5f9;
      color: var(--text-muted);
      padding: 0.2rem 0.6rem;
      border-radius: var(--radius-sm);
    }

    /* 5. 技术架构与数据安全 (tech-architecture) */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .arch-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      transition: border-color 0.2s ease;
    }
    .arch-box:hover {
      border-color: var(--primary);
    }
    .arch-box h3 {
      font-size: 1.15rem;
      color: #ffffff;
      margin-bottom: 0.75rem;
    }
    .arch-box p {
      font-size: 0.875rem;
      color: var(--text-light);
      line-height: 1.65;
    }

    /* 6. 全流程流转步骤 (workflow) */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 1.25rem;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      position: relative;
    }
    .step-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: #cbd5e1;
      margin-bottom: 0.5rem;
    }
    .step-card h3 {
      font-size: 1.05rem;
      color: var(--secondary);
      margin-bottom: 0.5rem;
      font-weight: 700;
    }
    .step-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 产品实操截图展示 (screenshots) */
    .showcase-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: var(--shadow-sm);
    }
    .showcase-nav {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 2rem;
      flex-wrap: wrap;
    }
    .showcase-btn {
      padding: 0.5rem 1.25rem;
      border-radius: var(--radius-full);
      border: 1px solid var(--border-color);
      background: #f8fafc;
      color: var(--text-main);
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
    }
    .showcase-btn.active {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }
    .showcase-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .showcase-img-box img {
      width: 100%;
      height: 480px;
      object-fit: cover;
    }

    /* 8. 标杆客户成效深度复盘 (case-studies) */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .case-card-img {
      height: 220px;
      width: 100%;
      object-fit: cover;
    }
    .case-card-body {
      padding: 2rem;
    }
    .case-card-body h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 0.75rem;
    }
    .case-card-body p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.5rem;
    }
    .case-kpi-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
      padding-top: 1rem;
      border-top: 1px solid var(--border-color);
    }
    .kpi-item strong {
      display: block;
      font-size: 1.4rem;
      color: var(--accent);
      font-weight: 800;
    }
    .kpi-item span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 9. 核心运营效能数据条 (data-metrics) */
    .metrics-banner {
      background: linear-gradient(135deg, #1e293b, #0f172a);
      border-radius: var(--radius-lg);
      padding: 3rem 2rem;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
      color: #ffffff;
    }
    .metric-col strong {
      display: block;
      font-size: 2.65rem;
      font-weight: 800;
      color: #60a5fa;
      line-height: 1.1;
      margin-bottom: 0.5rem;
    }
    .metric-col p {
      font-size: 0.9375rem;
      color: #cbd5e1;
      font-weight: 500;
    }

    /* 10. 用户原声评价口碑墙 (testimonials) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      box-shadow: var(--shadow-sm);
    }
    .quote-mark {
      font-size: 2.5rem;
      color: #cbd5e1;
      line-height: 1;
      margin-bottom: 0.5rem;
    }
    .testimonial-card p {
      font-size: 0.9375rem;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 1.5rem;
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 0.85rem;
    }
    .user-avatar-placeholder {
      width: 44px;
      height: 44px;
      background: #e2e8f0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--secondary);
    }
    .user-meta strong {
      display: block;
      font-size: 0.9375rem;
      color: var(--secondary);
    }
    .user-meta span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 11. 版本对比与套餐矩阵 (pricing-plans) */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      align-items: stretch;
    }
    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
    }
    .pricing-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.75rem;
      border-radius: var(--radius-full);
    }
    .pricing-header h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 0.5rem;
    }
    .pricing-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 1.25rem;
      min-height: 42px;
    }
    .pricing-cost {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--secondary);
      margin-bottom: 1.5rem;
    }
    .pricing-cost small {
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: normal;
    }
    .pricing-list {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }
    .pricing-list li {
      font-size: 0.875rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    /* 12. 行业资讯与数字化策略 (news-insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-thumb {
      height: 160px;
      width: 100%;
      object-fit: cover;
    }
    .news-card-body {
      padding: 1.25rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-card-body span {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-bottom: 0.4rem;
    }
    .news-card-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--secondary);
      line-height: 1.4;
      margin-bottom: 0.6rem;
    }
    .news-card-body p {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1rem;
      flex-grow: 1;
    }
    .news-readmore {
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary);
    }

    /* 13. 企业服务保障与合规承诺 (trust-guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .guarantee-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      text-align: center;
      background: #ffffff;
    }
    .guarantee-card h3 {
      font-size: 1.1rem;
      color: var(--secondary);
      margin-bottom: 0.5rem;
    }
    .guarantee-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 14. 转化漏斗与预约演示 (conversion-cta) */
    .cta-container {
      background: linear-gradient(135deg, #1e3a8a, #0f172a);
      border-radius: var(--radius-lg);
      padding: 4rem 3rem;
      color: #ffffff;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 3.5rem;
      align-items: center;
    }
    .cta-content h2 {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1rem;
    }
    .cta-content p {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 2rem;
    }
    .cta-form {
      background: #ffffff;
      padding: 2rem;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-xl);
    }
    .form-group {
      margin-bottom: 1.2rem;
    }
    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 0.4rem;
    }
    .form-input {
      width: 100%;
      padding: 0.65rem 0.85rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      font-size: 0.9375rem;
    }
    .form-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    /* 页脚 Footer */
    .site-footer {
      background-color: #0b1120;
      color: #94a3b8;
      padding-top: 4.5rem;
      padding-bottom: 2.5rem;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand h4 {
      font-size: 1.25rem;
      color: #ffffff;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .footer-brand p {
      font-size: 0.875rem;
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      color: #ffffff;
      font-weight: 600;
      margin-bottom: 1.2rem;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 0.65rem;
    }
    .footer-links a {
      font-size: 0.875rem;
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-contact-item {
      font-size: 0.875rem;
      line-height: 1.6;
      margin-bottom: 0.6rem;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: #64748b;
    }

    /* 移动端菜单面板 */
    .mobile-menu-drawer {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: #ffffff;
      z-index: 200;
      padding: 2rem 1.5rem;
      flex-direction: column;
    }
    .mobile-menu-drawer.open {
      display: flex;
    }
    .mobile-menu-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
    }
    .mobile-menu-links {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .mobile-menu-links a {
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--secondary);
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-stack-container {
        grid-template-columns: 1fr;
      }
      .hero-card-side-left, .hero-card-side-right {
        display: none;
      }
      .brand-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
      .metrics-banner {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
      }
      .pricing-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .main-nav, .header-cta-group {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-intro h1 {
        font-size: 2.15rem;
      }
      .hero-actions {
        flex-direction: column;
      }
      .features-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .arch-grid {
        grid-template-columns: 1fr;
      }
      .steps-container {
        grid-template-columns: 1fr;
      }
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .metrics-banner {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .cta-container {
        padding: 2.5rem 1.5rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
      }
    }