/* roulang page: index */
:root {
      --primary: #1A56DB;
      --primary-dark: #0E2A5C;
      --primary-light: #EBF2FE;
      --accent: #38BDF8;
      --gold: #D97706;
      --gold-light: #FEF3C7;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 30px -10px rgba(15, 23, 42, 0.12);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 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;
      color: var(--text-body);
      background-color: var(--bg-white);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部顶栏 */
    .top-bar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 0.85rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-contact {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .top-bar-contact span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-bar-badge {
      background: rgba(56, 189, 248, 0.15);
      color: var(--accent);
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: bold;
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 32px;
      align-items: center;
    }
    .nav-links a {
      font-weight: 500;
      color: var(--text-main);
      font-size: 0.95rem;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      width: 0;
      height: 2px;
      bottom: -4px;
      left: 0;
      background-color: var(--primary);
      transition: var(--transition);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .nav-cta {
      background-color: var(--primary);
      color: #FFF !important;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 600;
      box-shadow: 0 4px 14px rgba(26, 86, 219, 0.25);
    }
    .nav-cta:hover {
      background-color: #1545b0;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(26, 86, 219, 0.35);
    }
    .nav-cta::after {
      display: none !important;
    }

    /* 移动端菜单控制按钮 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 通用板块样式 */
    .section-padding {
      padding: 90px 0;
    }
    .section-bg-light {
      background-color: var(--bg-light);
    }
    .section-bg-white {
      background-color: var(--bg-white);
    }
    .section-bg-dark {
      background-color: var(--bg-dark);
      color: #FFF;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px auto;
    }
    .section-badge {
      display: inline-block;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      padding: 5px 14px;
      border-radius: 20px;
      text-transform: uppercase;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-badge-dark {
      background-color: rgba(56, 189, 248, 0.15);
      color: var(--accent);
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-bg-dark .section-title {
      color: #FFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      gap: 8px;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFF;
      box-shadow: 0 4px 15px rgba(26, 86, 219, 0.25);
    }
    .btn-primary:hover {
      background-color: #1545b0;
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(26, 86, 219, 0.35);
    }
    .btn-secondary {
      background-color: #FFF;
      color: var(--text-main);
      border-color: var(--border-color);
    }
    .btn-secondary:hover {
      background-color: var(--bg-light);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-gold {
      background: linear-gradient(135deg, #F59E0B, #D97706);
      color: #FFF;
      box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3);
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #D97706, #B45309);
      transform: translateY(-2px);
    }

    /* 板块 1: Hero 首屏 */
    .hero-vip {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #1e293b 0%, #0b1329 100%);
      color: #FFF;
      padding: 100px 0 110px 0;
      overflow: hidden;
    }
    .hero-vip::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: radial-gradient(rgba(56, 189, 248, 0.1) 1px, transparent 1px);
      background-size: 32px 32px;
      opacity: 0.5;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 3.1rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-content h1 span {
      background: linear-gradient(120deg, #60A5FA, #38BDF8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-content p {
      font-size: 1.15rem;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 34px;
    }
    .hero-action-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-perks {
      display: flex;
      gap: 28px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }
    .perk-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: #94A3B8;
    }
    .perk-item strong {
      color: #FFF;
    }

    /* VIP 会员俱乐部黑金感面板 */
    .vip-card-box {
      background: linear-gradient(145deg, #1E293B, #0F172A);
      border: 1px solid rgba(245, 158, 11, 0.35);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
      position: relative;
    }
    .vip-badge-tag {
      position: absolute;
      top: -14px;
      right: 28px;
      background: linear-gradient(135deg, #F59E0B, #B45309);
      color: #FFF;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.4);
    }
    .vip-card-box h3 {
      font-size: 1.4rem;
      color: #FEF3C7;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .vip-card-box p {
      color: #94A3B8;
      font-size: 0.92rem;
      margin-bottom: 22px;
      line-height: 1.6;
    }
    .vip-feature-list {
      list-style: none;
      margin-bottom: 26px;
    }
    .vip-feature-list li {
      padding: 9px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.92rem;
      color: #E2E8F0;
      display: flex;
      justify-content: space-between;
    }
    .vip-feature-list li span:last-child {
      color: #38BDF8;
      font-weight: 600;
    }

    /* 板块 2: 行业痛点区 (4列卡片) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }
    .pain-index {
      font-size: 1.8rem;
      font-weight: 800;
      color: #CBD5E1;
      line-height: 1;
      margin-bottom: 16px;
    }
    .pain-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .pain-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 3: 品牌与体系介绍 (左右非对称) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .overview-visual {
      position: relative;
    }
    .overview-img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      width: 100%;
      height: 400px;
      object-fit: cover;
    }
    .overview-data-tag {
      position: absolute;
      bottom: -20px;
      right: 20px;
      background: var(--bg-white);
      padding: 18px 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }
    .overview-data-tag strong {
      display: block;
      font-size: 1.6rem;
      color: var(--primary);
      font-weight: 800;
    }
    .overview-data-tag span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .overview-text h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .overview-text p {
      color: var(--text-body);
      margin-bottom: 20px;
      line-height: 1.75;
    }
    .spec-badge-group {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 24px;
    }
    .spec-badge {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: var(--text-main);
      font-weight: 500;
    }

    /* 板块 4: 6项核心优势 (3x2网格) */
    .adv-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .adv-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 34px 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .adv-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.3rem;
      margin-bottom: 20px;
    }
    .adv-card h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .adv-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 5: 旗舰产品展厅 (3卡片) */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .product-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .product-img-wrapper {
      height: 240px;
      overflow: hidden;
      background-color: var(--bg-light);
    }
    .product-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-img-wrapper img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 26px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-tag {
      font-size: 0.78rem;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      display: inline-block;
      align-self: flex-start;
      margin-bottom: 10px;
    }
    .product-body h4 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .product-body p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .product-specs {
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
      margin-top: auto;
      font-size: 0.88rem;
      color: var(--text-body);
    }
    .product-specs div {
      display: flex;
      justify-content: space-between;
      margin-bottom: 6px;
    }

    /* 板块 6: 部署交付流程 (4步骤横向) */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .flow-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .flow-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFF;
      font-weight: 800;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px auto;
    }
    .flow-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .flow-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 7: 深色工业科技与云端调度大脑 */
    .tech-brain-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 60px;
      align-items: center;
    }
    .tech-brain-text h3 {
      font-size: 2.1rem;
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.3;
    }
    .tech-brain-text p {
      color: #94A3B8;
      font-size: 1.05rem;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .tech-metrics-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .metric-card-dark {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px;
      border-radius: var(--radius-md);
    }
    .metric-card-dark strong {
      display: block;
      font-size: 1.7rem;
      color: var(--accent);
      font-weight: 800;
      margin-bottom: 4px;
    }
    .metric-card-dark span {
      font-size: 0.85rem;
      color: #CBD5E1;
    }
    .tech-brain-img {
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块 8: 标杆客户案例 (2列深度) */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .case-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .case-img {
      height: 220px;
      width: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 30px;
      flex-grow: 1;
    }
    .case-badge {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .case-content h4 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .case-content p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .case-result {
      background: var(--bg-light);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 600;
    }

    /* 板块 9: 关键成果数据统计条 */
    .counter-bar {
      background: linear-gradient(135deg, #1E3A8A, #172554);
      color: #FFF;
      padding: 60px 0;
    }
    .counter-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .counter-item strong {
      display: block;
      font-size: 2.8rem;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: Arial, sans-serif;
    }
    .counter-item p {
      font-size: 1rem;
      color: #CBD5E1;
      font-weight: 500;
    }

    /* 板块 10: 客户证言 (3列阴影卡片) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
      position: relative;
    }
    .testimonial-quote::before {
      content: '“';
      font-size: 3rem;
      color: var(--primary-light);
      position: absolute;
      top: -24px;
      left: -10px;
      z-index: 0;
    }
    .testimonial-quote p {
      position: relative;
      z-index: 1;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }
    .author-info h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-info span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 板块 11: 行业资讯内嵌 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .news-date {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .news-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 12: 常见问题手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-main);
      background-color: var(--bg-white);
    }
    .faq-header:hover {
      background-color: #FAFAFA;
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: var(--transition);
    }
    .faq-body {
      padding: 0 24px 22px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      display: none;
    }
    .faq-item.active .faq-body {
      display: block;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    /* 板块 13: 强转化留资表单区 */
    .cta-box-wrapper {
      background: linear-gradient(135deg, var(--primary-dark), #0A192F);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #FFF;
      box-shadow: var(--shadow-lg);
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h3 {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 18px;
      line-height: 1.3;
    }
    .cta-info p {
      color: #CBD5E1;
      font-size: 1.05rem;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .cta-benefit-list {
      list-style: none;
    }
    .cta-benefit-list li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: #E2E8F0;
    }
    .cta-benefit-list li span {
      color: var(--accent);
      font-weight: bold;
    }
    
    /* 预约表单 */
    .booking-form {
      background: var(--bg-white);
      padding: 36px 30px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      color: var(--text-main);
    }
    .booking-form h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 6px;
      text-align: center;
    }
    .booking-form .form-subtitle {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-align: center;
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
    }
    .form-submit-btn {
      width: 100%;
      margin-top: 8px;
      padding: 14px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #070D1B;
      color: #94A3B8;
      padding: 80px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.92rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-brand .brand-logo {
      color: #FFF;
      margin-bottom: 18px;
    }
    .footer-brand p {
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-col h5 {
      color: #FFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-contact-info li {
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .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: 0.85rem;
      color: #64748B;
    }
    .footer-engines {
      display: flex;
      gap: 16px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid, .tech-brain-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .pain-grid, .adv-grid, .flow-grid, .counter-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .product-grid, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-vip {
        padding: 60px 0 80px 0;
      }
      .hero-content h1 {
        font-size: 2.5rem;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #FFF;
        flex-direction: column;
        padding: 24px;
        gap: 18px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-cta {
        width: 100%;
        text-align: center;
      }
      .overview-grid, .case-grid {
        grid-template-columns: 1fr;
      }
      .product-grid, .testimonial-grid, .news-grid, .pain-grid, .adv-grid, .flow-grid, .counter-grid {
        grid-template-columns: 1fr;
      }
      .section-padding {
        padding: 60px 0;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .cta-box-wrapper {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 14px;
        text-align: center;
      }
    }