/* roulang page: index */
:root {
      --primary: #1E40AF;
      --primary-hover: #1D4ED8;
      --accent: #0284C7;
      --teal: #0D9488;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --text-light: #F1F5F9;
      --border-color: #E2E8F0;
      --border-dark: #334155;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
      --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 25px -5px rgba(30,64,175,0.12), 0 10px 10px -5px rgba(30,64,175,0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --max-width: 1240px;
      --transition: all 0.25s ease-in-out;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input, textarea, select {
      font-family: inherit;
      border: none;
      outline: none;
    }

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

    /* 顶部信息栏 */
    .top-bar {
      background-color: #0B132B;
      color: #94A3B8;
      font-size: 0.82rem;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      position: relative;
      z-index: 1001;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 38px;
    }
    .top-bar-items {
      display: flex;
      gap: 20px;
    }
    .top-bar-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-logo-badge {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      font-size: 0.8rem;
      font-weight: 600;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 0;
      position: relative;
    }
    .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(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-header {
      background-color: var(--primary);
      color: #fff;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-header:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(30,64,175,0.25);
    }

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

    /* 板块通用 */
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-bg-white {
      background-color: var(--bg-white);
    }
    .section-bg-slate {
      background-color: var(--bg-main);
    }
    .section-bg-dark {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }
    .section-header {
      text-align: center;
      max-width: 860px;
      margin: 0 auto 50px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      background-color: rgba(30, 64, 175, 0.08);
      color: var(--primary);
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-badge.badge-light {
      background-color: rgba(255, 255, 255, 0.1);
      color: #38BDF8;
    }
    .section-title {
      font-size: 2.1rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
      font-weight: 700;
    }
    .section-bg-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 帮助检索中心 */
    .hero-search-center {
      position: relative;
      background: linear-gradient(180deg, #F0F5FA 0%, #FFFFFF 100%);
      padding: 90px 0 80px;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      opacity: 0.04;
      background-image: url('/assets/images/0943852a5ccc351a.png');
      background-size: cover;
      background-position: center;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-title span {
      background: linear-gradient(120deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 1.12rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 35px;
      text-align: justify;
      text-align-last: center;
    }
    .search-box-wrapper {
      max-width: 680px;
      margin: 0 auto 20px;
      background: #FFFFFF;
      padding: 8px;
      border-radius: var(--radius-md);
      box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
      border: 1px solid #CBD5E1;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .search-input {
      flex: 1;
      padding: 12px 18px;
      font-size: 1rem;
      color: var(--text-main);
      background: transparent;
    }
    .btn-search {
      background: var(--primary);
      color: #fff;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-search:hover {
      background: var(--primary-hover);
    }
    .hot-chips {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .chip {
      background: #E2E8F0;
      color: var(--text-body);
      padding: 5px 14px;
      border-radius: 20px;
      cursor: pointer;
      transition: var(--transition);
      font-weight: 500;
    }
    .chip:hover {
      background: var(--primary);
      color: #fff;
    }

    /* 2. KPI 看板 */
    .kpi-section {
      background-color: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .kpi-card {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }
    .kpi-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #93C5FD;
    }
    .kpi-num {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
      font-feature-settings: "tnum";
    }
    .kpi-unit {
      font-size: 1.2rem;
      font-weight: 600;
      margin-left: 2px;
    }
    .kpi-label {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .kpi-sub {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 3. 业务服务矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: #BFDBFE;
    }
    .service-icon-box {
      width: 52px;
      height: 52px;
      background: linear-gradient(135deg, rgba(30,64,175,0.1), rgba(2,132,199,0.15));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .service-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .service-features {
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
      margin-top: auto;
    }
    .service-feature-item {
      font-size: 0.85rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 6px;
    }
    .service-feature-item::before {
      content: '✓';
      color: var(--teal);
      font-weight: bold;
    }

    /* 4. 架构结果对比 */
    .compare-table-wrapper {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }
    .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: var(--text-main);
      font-size: 0.95rem;
    }
    .compare-table td {
      font-size: 0.92rem;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .col-highlight {
      background-color: rgba(30, 64, 175, 0.03);
      color: var(--primary);
      font-weight: 600;
    }

    /* 5. 挑战与痛点 */
    .challenges-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .challenge-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px 22px;
      border-left: 4px solid #EF4444;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .challenge-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .challenge-tag {
      font-size: 0.78rem;
      color: #DC2626;
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .challenge-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .challenge-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 6. 底层架构双列 */
    .arch-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
    }
    .arch-content h3 {
      font-size: 1.8rem;
      color: var(--text-main);
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .arch-content p {
      font-size: 0.96rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .arch-specs {
      background: #F1F5F9;
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      border-left: 4px solid var(--teal);
      margin-bottom: 24px;
    }
    .arch-specs-title {
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.92rem;
      margin-bottom: 6px;
    }
    .arch-specs-detail {
      font-size: 0.88rem;
      color: #475569;
      line-height: 1.6;
    }

    /* 7. 实施里程碑 / 4 步演化 */
    .milestone-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 16px;
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 标杆落地案例 (深色) */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .case-card:hover {
      transform: translateY(-5px);
      border-color: #38BDF8;
      box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    }
    .case-thumb {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .case-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-thumb img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-client {
      font-size: 0.82rem;
      color: #38BDF8;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .case-name {
      font-size: 1.2rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .case-summary {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .case-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 14px;
    }
    .case-tag {
      background: rgba(255,255,255,0.06);
      color: #CBD5E1;
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 0.78rem;
    }

    /* 9. 双列深度落地实践 */
    .practice-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .practice-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .practice-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 18px;
    }
    .practice-sector {
      background: rgba(30,64,175,0.1);
      color: var(--primary);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 600;
    }
    .practice-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .practice-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .practice-diff {
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      padding: 16px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      font-size: 0.85rem;
    }
    .diff-item strong {
      display: block;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    /* 10. 行业动态与技术资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #BFDBFE;
    }
    .news-date {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-link:hover {
      color: var(--primary-hover);
    }

    /* 11. 平台合规与安全保障 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .assurance-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .assurance-box:hover {
      box-shadow: var(--shadow-md);
      border-color: #93C5FD;
    }
    .assurance-icon {
      width: 48px;
      height: 48px;
      background: #EFF6FF;
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-size: 1.25rem;
      font-weight: 700;
    }
    .assurance-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .assurance-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 12. 常见问题手风琴 */
    .faq-list {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: #93C5FD;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.25s ease;
      color: var(--text-muted);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background-color: #F8FAFC;
    }
    .faq-answer-inner {
      padding: 16px 24px 22px;
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px solid #F1F5F9;
    }

    /* 预约咨询表单区 */
    .cta-booking-wrap {
      background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      box-shadow: var(--shadow-lg);
    }
    .cta-booking-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-booking-info h3 {
      font-size: 2.1rem;
      font-weight: 700;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-booking-info p {
      color: #CBD5E1;
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-booking-points {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-point-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.92rem;
      color: #E2E8F0;
    }
    .booking-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      color: var(--text-main);
      box-shadow: 0 15px 30px rgba(0,0,0,0.25);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      background: #F8FAFC;
      transition: var(--transition);
    }
    .form-control:focus {
      background: #FFFFFF;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(30,64,175,0.15);
    }
    .form-submit-btn {
      width: 100%;
      background: var(--primary);
      color: #FFFFFF;
      padding: 13px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 8px;
    }
    .form-submit-btn:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(30,64,175,0.2);
    }
    .form-tips {
      font-size: 0.78rem;
      color: var(--text-muted);
      text-align: center;
      margin-top: 10px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0A0F1D;
      color: #94A3B8;
      font-size: 0.88rem;
      border-top: 1px solid rgba(255,255,255,0.08);
      padding: 70px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: inline-block;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 18px;
      font-size: 0.86rem;
      color: #64748B;
    }
    .footer-col h4 {
      font-size: 1rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #38BDF8;
    }
    .footer-contact-item {
      display: flex;
      gap: 10px;
      margin-bottom: 10px;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.82rem;
      color: #64748B;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .service-grid, .news-grid, .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .kpi-grid, .challenges-grid, .assurance-grid, .milestone-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-split, .practice-grid, .cta-booking-inner {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-action {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-search-center {
        padding: 60px 0 50px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .service-grid, .news-grid, .case-grid, .kpi-grid, .challenges-grid, .assurance-grid, .milestone-steps, .practice-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-booking-wrap {
        padding: 36px 20px;
      }
      .booking-form-box {
        padding: 24px 18px;
      }
      .section-title {
        font-size: 1.65rem;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }