/* roulang page: index */
:root {
      --primary: #0052D9;
      --primary-hover: #003cab;
      --primary-light: #EBF3FF;
      --secondary: #0A1F44;
      --accent-cyan: #00A3C4;
      --accent-blue: #00D2FF;
      --bg-white: #FFFFFF;
      --bg-light: #F4F7FB;
      --bg-dark: #0B132B;
      --text-title: #1D2939;
      --text-body: #475467;
      --text-muted: #98A2B3;
      --border-color: #E4E7EC;
      --card-shadow: 0 4px 20px -2px rgba(10, 31, 68, 0.06);
      --card-hover-shadow: 0 16px 32px -4px rgba(0, 82, 217, 0.12);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      color: var(--text-body);
      background-color: var(--bg-white);
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-py {
      padding-top: 96px;
      padding-bottom: 96px;
    }

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

    .bg-dark-alt {
      background-color: var(--bg-dark);
      color: #fff;
    }

    /* 顶部通知与主导航栏 */
    .top-bar {
      background-color: var(--secondary);
      color: #D0D5DD;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-contact-info span {
      margin-right: 20px;
    }
    .top-contact-info span strong {
      color: var(--accent-blue);
    }
    .top-meta-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255,255,255,0.08);
      padding: 2px 10px;
      border-radius: 4px;
      font-size: 12px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      transition: var(--transition);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 700;
      color: var(--secondary);
      letter-spacing: -0.5px;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      font-weight: bold;
    }
    .nav-links {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 28px;
    }
    .nav-item a {
      color: var(--text-title);
      font-size: 15px;
      font-weight: 500;
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover, .nav-item a.active {
      color: var(--primary);
    }
    .nav-item a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-item a:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-header {
      background-color: var(--primary);
      color: #fff;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      border: 1px solid var(--primary);
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0,82,217,0.2);
    }
    .btn-header:hover {
      background-color: var(--primary-hover);
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      font-size: 24px;
      color: var(--secondary);
    }

    /* 标题统一样式 */
    .section-head {
      margin-bottom: 56px;
    }
    .section-head.text-center {
      text-align: center;
      max-width: 860px;
      margin-left: auto;
      margin-right: auto;
    }
    .badge-sub {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }
    .badge-sub.dark {
      background: rgba(0, 210, 255, 0.12);
      color: var(--accent-blue);
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: var(--text-title);
      line-height: 1.35;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
    }
    .section-title.white {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.75;
    }
    .section-desc.white {
      color: #98A2B3;
    }

    /* 板块1: Hero 白皮书获客与资料下载流 */
    .hero-section {
      background: linear-gradient(135deg, #F8FAFC 0%, #EDF4FF 100%);
      padding: 72px 0 96px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      color: var(--secondary);
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-highlights-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-h-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      background: #FFFFFF;
      padding: 14px 18px;
      border-radius: var(--radius-md);
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
      border: 1px solid var(--border-color);
    }
    .hero-h-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
      font-size: 13px;
    }
    .hero-h-text h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 2px;
    }
    .hero-h-text p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }
    .hero-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 16px 40px -8px rgba(10, 31, 68, 0.12);
      border: 1px solid #D0D5DD;
      position: relative;
    }
    .form-card-badge {
      position: absolute;
      top: -14px;
      right: 28px;
      background: linear-gradient(90deg, #F04438, #FF8A4C);
      color: #fff;
      font-size: 12px;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-weight: 600;
    }
    .form-card-header {
      margin-bottom: 22px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
    }
    .form-card-header h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--secondary);
    }
    .form-card-header p {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .form-input-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      height: 46px;
      padding: 0 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      font-size: 14px;
      color: var(--text-title);
      transition: var(--transition);
      background: #FAFAFA;
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.15);
    }
    .btn-submit {
      width: 100%;
      height: 48px;
      background: var(--primary);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 10px;
    }
    .btn-submit:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 18px rgba(0, 82, 217, 0.3);
    }
    .form-privacy-note {
      font-size: 11px;
      color: var(--text-muted);
      text-align: center;
      margin-top: 12px;
    }

    /* 板块2: 数据驱动指标看板 */
    .metrics-bar {
      margin-top: -40px;
      position: relative;
      z-index: 10;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-item {
      background: #FFFFFF;
      padding: 28px 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      text-align: center;
      transition: var(--transition);
    }
    .metric-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-color: rgba(0,82,217,0.3);
    }
    .metric-value {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      letter-spacing: -1px;
    }
    .metric-value span {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-title);
      margin-left: 2px;
    }
    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块3: 核心技术基础与国家检验标准 (Tech Foundation) */
    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .tech-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
    }
    .tech-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
      transition: var(--transition);
    }
    .tech-image-wrap:hover img {
      transform: scale(1.02);
    }
    .tech-badge-overlay {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(10, 31, 68, 0.88);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .tech-badge-overlay .badge-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--accent-blue);
    }
    .tech-badge-overlay .badge-desc {
      font-size: 12px;
      color: #D0D5DD;
    }
    .tech-cert-points {
      margin-top: 28px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .cert-item {
      display: flex;
      gap: 16px;
    }
    .cert-icon-bullet {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }
    .cert-content h4 {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 4px;
    }
    .cert-content p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块4: 核心优势矩阵 (Core Strengths 6网格) */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .strength-card {
      background: #FFFFFF;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      transition: var(--transition);
      position: relative;
    }
    .strength-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-hover-shadow);
      border-color: var(--primary);
    }
    .strength-icon {
      width: 52px;
      height: 52px;
      background: var(--primary-light);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 24px;
      margin-bottom: 20px;
    }
    .strength-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .strength-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 板块5: 热门服务机器人产品矩阵 (Featured Products) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .product-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .product-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-hover-shadow);
      border-color: var(--primary);
    }
    .product-img-box {
      height: 240px;
      position: relative;
      overflow: hidden;
      background: #EAECF0;
    }
    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-img-box img {
      transform: scale(1.05);
    }
    .product-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(0, 82, 217, 0.9);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      backdrop-filter: blur(4px);
    }
    .product-content {
      padding: 28px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .product-content h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .product-content p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .product-specs {
      background: var(--bg-light);
      padding: 14px;
      border-radius: var(--radius-sm);
      margin-bottom: 22px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      font-size: 12px;
    }
    .spec-item span:first-child {
      color: var(--text-muted);
      display: block;
    }
    .spec-item span:last-child {
      font-weight: 600;
      color: var(--text-title);
    }
    .btn-product {
      display: block;
      text-align: center;
      background: #FFFFFF;
      color: var(--primary);
      border: 1px solid var(--primary);
      padding: 10px 0;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-product:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    /* 板块6: 深色对比理念与软硬件体系区 (Dark Architecture) */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .arch-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      transition: var(--transition);
    }
    .arch-card:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: var(--accent-blue);
      transform: translateY(-4px);
    }
    .arch-num {
      font-size: 14px;
      color: var(--accent-blue);
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 12px;
      display: block;
    }
    .arch-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .arch-card p {
      font-size: 14px;
      color: #98A2B3;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .arch-features {
      list-style: none;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 16px;
    }
    .arch-features li {
      font-size: 13px;
      color: #D0D5DD;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .arch-features li::before {
      content: '■';
      font-size: 8px;
      color: var(--accent-cyan);
    }

    /* 板块7: 典型应用场景与效率成果对比 (Scenarios & Benchmark) */
    .benchmark-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      overflow-x: auto;
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .benchmark-table th {
      background: #F8FAFC;
      padding: 20px 24px;
      font-size: 15px;
      font-weight: 700;
      color: var(--secondary);
      border-bottom: 1px solid var(--border-color);
    }
    .benchmark-table td {
      padding: 20px 24px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-body);
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .table-metric-head {
      font-weight: 600;
      color: var(--text-title);
      width: 22%;
    }
    .col-highlight {
      background: rgba(0, 82, 217, 0.03);
      color: var(--primary);
      font-weight: 600;
    }
    .tag-badge {
      display: inline-block;
      padding: 2px 8px;
      font-size: 12px;
      border-radius: 4px;
    }
    .tag-better {
      background: #ECFDF3;
      color: #027A48;
      font-weight: 600;
    }
    .tag-normal {
      background: #F2F4F7;
      color: #667085;
    }

    /* 板块8: 标杆客户故事与现场验证 (Stories) */
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .story-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .story-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
    }
    .story-img {
      height: 200px;
      overflow: hidden;
    }
    .story-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .story-card:hover .story-img img {
      transform: scale(1.04);
    }
    .story-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .story-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .story-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .story-body p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .story-stats {
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
    }
    .story-stats span {
      color: var(--text-muted);
    }
    .story-stats strong {
      color: var(--primary);
      font-size: 15px;
    }

    /* 板块9: 技术发展里程碑时间轴 (Milestones) */
    .timeline-wrap {
      position: relative;
      margin-top: 40px;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 0;
      right: 0;
      height: 2px;
      background: #D0D5DD;
      z-index: 1;
      transform: translateY(-50%);
    }
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      z-index: 2;
    }
    .milestone-node {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--card-shadow);
      text-align: center;
      transition: var(--transition);
    }
    .milestone-node:hover {
      transform: translateY(-6px);
      border-color: var(--primary);
      box-shadow: var(--card-hover-shadow);
    }
    .node-dot {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary);
      border: 4px solid #EBF3FF;
      margin: 0 auto 16px auto;
    }
    .node-year {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent-cyan);
      letter-spacing: 1px;
      margin-bottom: 6px;
    }
    .milestone-node h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 8px;
    }
    .milestone-node p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.5;
    }

    /* 板块10: 真实用户评价体系 (Testimonials) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #FFFFFF;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-rating {
      color: #F79009;
      font-size: 16px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .testimonial-quote {
      font-size: 15px;
      line-height: 1.7;
      color: var(--text-body);
      margin-bottom: 24px;
      font-style: normal;
    }
    .client-profile {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }
    .client-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }
    .client-meta h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-title);
    }
    .client-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块11: 前沿技术与行业动态 (News & Insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
    }
    .news-img {
      height: 190px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .news-card:hover .news-img img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link-btn {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .news-link-btn:hover {
      color: var(--primary-hover);
    }

    /* 板块12: 品质交付与平台服务保障 (Service Guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      background: #FFFFFF;
      padding: 30px 22px;
      border-radius: var(--radius-md);
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      text-align: center;
      transition: var(--transition);
    }
    .guarantee-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-color: var(--primary);
    }
    .guarantee-icon {
      width: 56px;
      height: 56px;
      background: var(--primary-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--primary);
      margin: 0 auto 18px auto;
    }
    .guarantee-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 8px;
    }
    .guarantee-item p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块13: 高频业务解答区 (FAQ Accordion) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: 0 2px 8px rgba(10, 31, 68, 0.03);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--primary);
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 22px 28px;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon-arrow {
      font-size: 18px;
      color: var(--text-muted);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FAFCFE;
    }
    .faq-answer-inner {
      padding: 0 28px 22px 28px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 板块14: 全端线索转化咨询与部署评估 (Conversion Form) */
    .cta-banner-section {
      background: linear-gradient(135deg, var(--secondary) 0%, #102A56 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      box-shadow: 0 20px 40px rgba(10, 31, 68, 0.2);
    }
    .cta-flex {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 32px;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-text p {
      font-size: 15px;
      color: #D0D5DD;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-perks {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-perks li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #EBF3FF;
    }
    .cta-perks li::before {
      content: '✓';
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--accent-cyan);
      color: #0B132B;
      font-size: 12px;
      font-weight: bold;
    }
    .cta-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-body);
    }
    .cta-form-box h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 18px;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 14px;
    }

    /* 页脚设计 (Footer) */
    .site-footer {
      background-color: var(--bg-dark);
      color: #98A2B3;
      padding-top: 80px;
      padding-bottom: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 56px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand h4 {
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 20px;
      font-size: 13px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col ul li a {
      color: #98A2B3;
      font-size: 13px;
    }
    .footer-col ul li a:hover {
      color: var(--accent-blue);
    }
    .footer-contact-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
    }
    .footer-contact-list li strong {
      color: #FFFFFF;
    }
    .footer-bottom {
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }
    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }
    .footer-bottom-links a {
      color: #98A2B3;
    }
    .footer-bottom-links a:hover {
      color: #FFFFFF;
    }

    /* 移动端菜单抽屉与响应式断点 */
    .mobile-menu-drawer {
      display: none;
      position: fixed;
      top: 110px;
      left: 0;
      width: 100%;
      background: #FFFFFF;
      box-shadow: 0 10px 25px rgba(0,0,0,0.1);
      padding: 24px;
      z-index: 999;
      border-bottom: 1px solid var(--border-color);
    }
    .mobile-menu-drawer.active {
      display: block;
    }
    .mobile-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .mobile-nav-list a {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-title);
      display: block;
      padding: 8px 0;
    }

    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-grid {
        grid-template-columns: 1fr;
      }
      .strengths-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .products-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid {
        grid-template-columns: 1fr;
      }
      .stories-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-wrap::before {
        display: none;
      }
      .timeline-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-flex {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links, .nav-actions {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .section-py {
        padding-top: 64px;
        padding-bottom: 64px;
      }
      .hero-highlights-list {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .strengths-grid {
        grid-template-columns: 1fr;
      }
      .products-grid {
        grid-template-columns: 1fr;
      }
      .stories-grid {
        grid-template-columns: 1fr;
      }
      .timeline-steps {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .cta-banner-section {
        padding: 40px 24px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }