/* roulang page: index */
:root {
      --primary: #0A2540;
      --accent: #00D084;
      --secondary: #3A57E8;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #06121E;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius: 10px;
      --shadow-sm: 0 2px 10px rgba(0,0,0,0.03);
      --shadow-lg: 0 16px 36px rgba(10,37,64,0.08);
      --transition: 280ms cubic-bezier(0.16, 1, 0.3, 1);
      --container: 1240px;
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-body);
      line-height: 1.7;
      overflow-x: hidden;
      scroll-behavior: smooth;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition);
    }

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

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

    /* 顶部通栏 */
    .top-utility-bar {
      background-color: #040c14;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-utility-bar .bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    /* 导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 4px rgba(0,0,0,0.05);
      transition: all var(--transition);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 19px;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-symbol {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 20px;
      font-weight: 900;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 8px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width var(--transition);
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-cta-btn {
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 6px;
      border: 1px solid var(--primary);
      transition: all var(--transition);
      cursor: pointer;
    }
    .nav-cta-btn:hover {
      background: #11365d;
      box-shadow: 0 4px 12px rgba(10,37,64,0.15);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 6px;
      cursor: pointer;
      transition: all var(--transition);
      text-align: center;
    }
    .btn-accent {
      background-color: var(--accent);
      color: #06121E;
      border: 1px solid var(--accent);
    }
    .btn-accent:hover {
      background-color: #02ba75;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 208, 132, 0.25);
    }
    .btn-outline {
      background-color: transparent;
      color: #fff;
      border: 1px solid rgba(255,255,255,0.4);
    }
    .btn-outline:hover {
      border-color: #fff;
      background: rgba(255,255,255,0.1);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background-color: var(--secondary);
      color: #fff;
      border: 1px solid var(--secondary);
    }
    .btn-secondary:hover {
      background-color: #2743cc;
      transform: translateY(-2px);
    }

    /* 板块通用头部 */
    .section-spacing {
      padding: 96px 0;
    }
    .section-header {
      margin-bottom: 54px;
    }
    .section-header.center {
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-kicker {
      font-size: 13px;
      font-weight: 700;
      color: var(--secondary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 12px;
      display: inline-block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }
    .section-intro {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* #hero 沉浸式海报 */
    #hero {
      position: relative;
      background-color: var(--bg-dark);
      background-image: linear-gradient(180deg, rgba(6, 18, 30, 0.85) 0%, rgba(6, 18, 30, 0.94) 100%), url('/assets/images/1cd77d70733ceb29.webp');
      background-size: cover;
      background-position: center;
      color: #fff;
      padding: 110px 0 130px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .hero-content {
      max-width: 860px;
    }
    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 24px;
      color: #FFFFFF;
    }
    .hero-description {
      font-size: 17px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 40px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }
    .hero-metric-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      padding-top: 36px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      max-width: 680px;
    }
    .hero-metric-num {
      font-size: 28px;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.2;
    }
    .hero-metric-num span {
      color: var(--accent);
    }
    .hero-metric-txt {
      font-size: 13px;
      color: #94A3B8;
      margin-top: 4px;
    }

    /* #brand-intro 底层 PaaS */
    #brand-intro {
      background-color: var(--bg-white);
    }
    .brand-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .brand-img-wrap {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .brand-img-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .tech-specs-list {
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .spec-item {
      background: var(--bg-light);
      padding: 16px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    .spec-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 4px;
    }
    .spec-desc {
      font-size: 14px;
      color: var(--text-main);
      font-weight: 600;
    }

    /* #matrix-services 服务矩阵 */
    #matrix-services {
      background-color: var(--bg-light);
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card {
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #cbd5e1;
    }
    .service-card-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .service-icon-box {
      width: 48px;
      height: 48px;
      background: rgba(58, 87, 232, 0.08);
      color: var(--secondary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
    }
    .service-badge {
      font-size: 12px;
      color: var(--text-muted);
      background: var(--bg-light);
      padding: 4px 10px;
      border-radius: 20px;
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .service-features {
      list-style: none;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
      font-size: 13px;
      color: var(--text-body);
    }
    .service-features li {
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .service-features li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* #core-strengths 性能对比 */
    #core-strengths {
      background-color: var(--bg-white);
    }
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .strength-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      background: #fafbfc;
      transition: all var(--transition);
    }
    .strength-box:hover {
      background: #ffffff;
      border-color: var(--secondary);
      box-shadow: var(--shadow-sm);
    }
    .strength-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
      display: block;
    }
    .strength-box h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .strength-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* #hot-products 热门产品套件 */
    #hot-products {
      background-color: var(--bg-light);
    }
    .product-suites-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .suite-card {
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .suite-card.highlight {
      border: 2px solid var(--secondary);
      box-shadow: 0 10px 30px rgba(58, 87, 232, 0.12);
    }
    .suite-ribbon {
      position: absolute;
      top: 16px;
      right: 16px;
      background: var(--secondary);
      color: #fff;
      font-size: 11px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
    }
    .suite-img {
      height: 200px;
      width: 100%;
      object-fit: cover;
    }
    .suite-body {
      padding: 28px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .suite-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .suite-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .suite-check-list {
      list-style: none;
      margin-bottom: 28px;
      flex-grow: 1;
    }
    .suite-check-list li {
      font-size: 13px;
      color: var(--text-body);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .suite-check-list li::before {
      content: '■';
      color: var(--secondary);
      font-size: 8px;
    }

    /* #dark-architecture 深色拓扑 */
    #dark-architecture {
      background-color: var(--bg-dark);
      color: #fff;
      position: relative;
      background-image: radial-gradient(circle at top right, rgba(58, 87, 232, 0.12) 0%, transparent 60%);
    }
    #dark-architecture .section-title {
      color: #fff;
    }
    #dark-architecture .section-intro {
      color: #94A3B8;
    }
    .arch-flow-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }
    .arch-node {
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .arch-node-idx {
      font-size: 24px;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 12px;
      opacity: 0.8;
    }
    .arch-node h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #F8FAFC;
    }
    .arch-node p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* #solution-workflow 全场景流程 */
    #solution-workflow {
      background-color: #fff;
    }
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .workflow-step {
      position: relative;
      padding-top: 24px;
      border-top: 3px solid var(--border-color);
    }
    .workflow-step.active {
      border-top-color: var(--secondary);
    }
    .workflow-step-num {
      font-size: 13px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .workflow-step h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .workflow-step p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* #user-stories 多角色协同 */
    #user-stories {
      background-color: var(--bg-light);
    }
    .stories-tab-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .story-card {
      background: #fff;
      border-radius: var(--radius);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .story-role {
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 16px;
      background: rgba(0, 208, 132, 0.1);
      color: #02945d;
    }
    .story-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .story-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* #metrics-bar 运营数据统计条 */
    #metrics-bar {
      background-color: var(--primary);
      color: #fff;
      padding: 60px 0;
    }
    .metrics-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-value {
      font-size: 42px;
      font-weight: 900;
      color: var(--accent);
      letter-spacing: -1px;
      margin-bottom: 6px;
    }
    .metric-title {
      font-size: 14px;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: #94A3B8;
    }

    /* #case-wall 数字化转型案例 */
    #case-wall {
      background-color: #fff;
    }
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      background: #fff;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }
    .case-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    .case-content {
      padding: 24px;
      flex-grow: 1;
    }
    .case-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 8px;
      display: block;
    }
    .case-content h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .case-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .case-stats-row {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      font-size: 13px;
    }
    .case-stat-num {
      font-weight: 700;
      color: var(--primary);
    }

    /* #testimonials 行业评价 */
    #testimonials {
      background-color: var(--bg-light);
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .quote-box {
      background: #fff;
      border-radius: var(--radius);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .quote-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 16px;
    }
    .quote-box p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .quote-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .author-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* #news-insights 行业洞察 */
    #news-insights {
      background-color: #fff;
    }
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      background: #fafbfc;
      transition: all var(--transition);
    }
    .insight-card:hover {
      border-color: #94A3B8;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }
    .insight-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .insight-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .insight-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* #partners 合作伙伴 */
    #partners {
      background-color: var(--bg-light);
      padding: 70px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
      align-items: center;
    }
    .partner-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 16px;
      text-align: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      letter-spacing: -0.2px;
      transition: all var(--transition);
    }
    .partner-item:hover {
      border-color: var(--secondary);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    /* #faq 常见问题手风琴 */
    #faq {
      background-color: #FFFFFF;
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-accordion details {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 16px;
      transition: all var(--transition);
      overflow: hidden;
    }
    .faq-accordion details[open] {
      background: #FFFFFF;
      border-color: var(--secondary);
      box-shadow: var(--shadow-sm);
    }
    .faq-accordion summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-accordion summary::-webkit-details-marker {
      display: none;
    }
    .faq-accordion summary::after {
      content: '+';
      font-size: 20px;
      font-weight: 400;
      color: var(--secondary);
      transition: transform var(--transition);
    }
    .faq-accordion details[open] summary::after {
      content: '−';
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

    /* #security-compliance 合规保障 */
    #security-compliance {
      background-color: #0A1C2E;
      color: #FFFFFF;
      padding: 50px 0;
    }
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      align-items: center;
    }
    .compliance-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 16px;
      background: rgba(255,255,255,0.04);
      border-radius: 8px;
      border: 1px solid rgba(255,255,255,0.08);
    }
    .compliance-icon {
      font-size: 20px;
      color: var(--accent);
    }
    .compliance-text h4 {
      font-size: 14px;
      font-weight: 700;
      color: #F8FAFC;
    }
    .compliance-text p {
      font-size: 12px;
      color: #94A3B8;
    }

    /* #cta-conversion 底部转化 */
    #cta-conversion {
      background-color: var(--bg-light);
      position: relative;
    }
    .cta-wrapper {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 50px 60px;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
    }
    .cta-proof-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-proof-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 28px;
    }
    .proof-check-list {
      list-style: none;
    }
    .proof-check-list li {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .proof-check-list li::before {
      content: '✓';
      color: #FFFFFF;
      background: var(--accent);
      width: 20px;
      height: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      font-size: 12px;
      font-weight: bold;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 14px;
      color: var(--text-main);
      background: #FAFAFA;
      transition: border-color var(--transition);
      outline: none;
    }
    .form-control:focus {
      border-color: var(--secondary);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(58, 87, 232, 0.12);
    }

    /* 页脚规范 */
    .site-footer {
      background-color: var(--bg-dark);
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 18px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      font-size: 13px;
      max-width: 320px;
    }
    .footer-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col li {
      margin-bottom: 10px;
    }
    .footer-col a {
      color: #94A3B8;
      transition: color var(--transition);
    }
    .footer-col a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    /* 移动端汉堡包与响应式断点 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    @media (max-width: 1024px) {
      .service-grid, .strengths-grid, .product-suites-grid, .stories-tab-grid, .case-grid, .testimonials-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-flow-wrap, .workflow-timeline, .metrics-container, .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .cta-wrapper {
        grid-template-columns: 1fr;
        padding: 40px 30px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-utility-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        gap: 0;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-link {
        padding: 12px 0;
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-metric-strip {
        grid-template-columns: 1fr;
      }
      .brand-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .service-grid, .strengths-grid, .product-suites-grid, .stories-tab-grid, .case-grid, .testimonials-grid, .insights-grid, .arch-flow-wrap, .workflow-timeline, .metrics-container, .compliance-grid {
        grid-template-columns: 1fr;
      }
      .partners-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }