/* roulang page: index */
:root {
      --primary: #2563EB;
      --primary-hover: #1D4ED8;
      --primary-light: #EFF6FF;
      --accent: #06B6D4;
      --dark-slate: #0F172A;
      --dark-card: #1E293B;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --bg-body: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 16px 24px -4px rgba(37, 99, 235, 0.08);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      line-height: 1.65;
      color: var(--text-main);
      background-color: var(--bg-body);
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

    button, input, select {
      font: inherit;
    }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航条 */
    .top-bar {
      background-color: #0B132B;
      color: #94A3B8;
      font-size: 13px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 38px;
    }
    .top-bar-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .top-bar-info span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      display: inline-block;
    }

    .main-nav-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .main-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 20px;
      color: var(--text-main);
    }
    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: #334155;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #1D4ED8);
      color: #fff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #1D4ED8, #1E40AF);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background: #fff;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 板块通用 */
    .section-spacing {
      padding: 90px 0;
    }
    .section-spacing-sm {
      padding: 60px 0;
    }
    .section-light {
      background-color: var(--bg-white);
    }
    .section-slate {
      background-color: var(--bg-body);
    }
    .section-dark {
      background-color: var(--dark-slate);
      color: #F8FAFC;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header.center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 14px;
      border: 1px solid rgba(37, 99, 235, 0.15);
    }
    .section-tag.dark {
      background: rgba(6, 182, 212, 0.15);
      color: var(--accent);
      border-color: rgba(6, 182, 212, 0.3);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      color: inherit;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. 首屏 Banner 轮播展台 */
    .hero-carousel-container {
      position: relative;
      background: #0B132B;
      color: #fff;
      overflow: hidden;
      min-height: 600px;
      display: flex;
      align-items: center;
    }
    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.8s ease, visibility 0.8s;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: center;
    }
    .hero-slide.active {
      opacity: 1;
      visibility: visible;
      position: relative;
    }
    .hero-slide::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(11, 19, 43, 0.94) 0%, rgba(15, 23, 42, 0.82) 55%, rgba(15, 23, 42, 0.5) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 680px;
      padding: 80px 0;
    }
    .hero-series-bar {
      display: inline-flex;
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 13px;
      gap: 12px;
      margin-bottom: 24px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }
    .hero-desc {
      font-size: 16px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .carousel-ctrls {
      position: absolute;
      bottom: 28px;
      right: 28px;
      z-index: 10;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .carousel-btn {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      backdrop-filter: blur(4px);
    }
    .carousel-btn:hover {
      background: var(--primary);
    }

    /* 2. 技术架构与认证指标 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .about-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .about-visual img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .tech-metric-floating {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(8px);
      padding: 18px 24px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0,0,0,0.1);
      display: flex;
      justify-content: space-around;
      border: 1px solid var(--border-color);
    }
    .tech-num-block {
      text-align: center;
    }
    .tech-num {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
    }
    .tech-lbl {
      font-size: 12px;
      color: var(--text-muted);
    }
    .spec-points {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .spec-icon {
      width: 28px;
      height: 28px;
      border-radius: 6px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* 3. 六卡片核心优势 */
    .cards-grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .adv-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .adv-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(37, 99, 235, 0.3);
    }
    .adv-icon-wrapper {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }
    .adv-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .adv-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 重点产品模块矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .prod-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .prod-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .prod-img-wrap {
      height: 190px;
      overflow: hidden;
    }
    .prod-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .prod-card:hover .prod-img-wrap img {
      transform: scale(1.05);
    }
    .prod-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .prod-body h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }
    .prod-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .prod-specs-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
      margin-top: auto;
    }
    .spec-pill {
      font-size: 12px;
      padding: 3px 10px;
      background: var(--bg-body);
      border-radius: 4px;
      color: #475569;
    }

    /* 5. 深色对比理念区 */
    .concept-box {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .concept-item {
      margin-bottom: 28px;
    }
    .concept-item h4 {
      font-size: 18px;
      color: #38BDF8;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .concept-item p {
      color: #94A3B8;
      font-size: 15px;
      line-height: 1.7;
    }
    .concept-panel {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .concept-panel h3 {
      font-size: 20px;
      margin-bottom: 20px;
      color: #fff;
    }
    .alignment-bar-wrap {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .bar-line {
      display: flex;
      justify-content: space-between;
      margin-bottom: 6px;
      font-size: 13px;
    }
    .bar-bg {
      height: 8px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      overflow: hidden;
    }
    .bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 4px;
    }

    /* 6. 行业应用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .scen-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      padding: 24px;
      transition: all 0.3s ease;
    }
    .scen-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .scen-icon {
      font-size: 32px;
      margin-bottom: 16px;
    }
    .scen-card h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }
    .scen-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 客户端演示舞台与交互 */
    .mockup-stage-wrapper {
      position: relative;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
    }
    .mockup-main-frame {
      border: 1px solid #CBD5E1;
      border-radius: 10px;
      overflow: hidden;
      background: #F1F5F9;
    }
    .mockup-header-bar {
      height: 36px;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      padding: 0 14px;
      gap: 8px;
    }
    .mockup-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #CBD5E1;
    }
    .mockup-dot.red { background: #F87171; }
    .mockup-dot.yellow { background: #FBBF24; }
    .mockup-dot.green { background: #34D399; }
    .mockup-body-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      min-height: 280px;
      background: #fff;
    }
    .mockup-pane {
      padding: 24px;
    }
    .mockup-pane:first-child {
      border-right: 1px solid var(--border-color);
      background: #FAFAFA;
    }
    .mockup-pane-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .mockup-pane p {
      font-size: 14px;
      line-height: 1.8;
      color: #334155;
    }
    .highlight-term {
      background: #FEF08A;
      padding: 2px 4px;
      border-radius: 4px;
      cursor: pointer;
    }
    .feature-bubbles-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .bubble-item {
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px;
      text-align: center;
    }
    .bubble-item h4 {
      font-size: 15px;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .bubble-item p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 8. 成功案例与落地纪实 */
    .case-studies-stream {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }
    .case-card-row {
      display: grid;
      grid-template-columns: 1.1fr 1.9fr;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      overflow: hidden;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-info-content {
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .case-client-tag {
      font-size: 13px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .case-info-content h3 {
      font-size: 22px;
      margin-bottom: 14px;
    }
    .case-meta-points {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .meta-box h5 {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }
    .meta-box span {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 9. 数据条 Banner */
    .metrics-bar-band {
      background: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #06B6D4 100%);
      color: #fff;
      padding: 50px 0;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-cell .num {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 8px;
      letter-spacing: -0.02em;
    }
    .metric-cell .lbl {
      font-size: 14px;
      opacity: 0.9;
    }

    /* 10. 用户评价墙 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .review-stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 14px;
    }
    .review-text {
      font-size: 14px;
      line-height: 1.7;
      color: #334155;
      margin-bottom: 20px;
    }
    .review-user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .user-avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 15px;
    }
    .user-meta-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .user-meta-company {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 商业订阅定价方案 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .pricing-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-8px);
    }
    .popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, var(--primary), var(--accent));
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 999px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .plan-name {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .plan-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 40px;
    }
    .plan-price-wrap {
      display: flex;
      align-items: baseline;
      gap: 6px;
      margin-bottom: 28px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .currency {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
    }
    .amount {
      font-size: 42px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1;
    }
    .billing-period {
      font-size: 13px;
      color: var(--text-muted);
    }
    .plan-features-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 36px;
      flex-grow: 1;
    }
    .plan-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #334155;
    }
    .check-mark {
      color: #10B981;
      font-weight: 800;
      font-size: 14px;
    }

    /* 12. 行业资讯精选 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }
    .news-img {
      height: 150px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-body h4 {
      font-size: 16px;
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 13. FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-accordion-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-accordion-item:hover {
      border-color: #CBD5E1;
    }
    .faq-question-btn {
      width: 100%;
      padding: 22px 26px;
      text-align: left;
      background: none;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
    }
    .faq-icon-arrow {
      font-size: 14px;
      color: var(--text-muted);
      transition: transform 0.3s ease;
    }
    .faq-accordion-item.open .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-answer-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FAFAFA;
      padding: 0 26px;
    }
    .faq-accordion-item.open .faq-answer-content {
      max-height: 200px;
      padding: 0 26px 22px 26px;
    }
    .faq-answer-content p {
      font-size: 14px;
      line-height: 1.75;
      color: #475569;
    }

    /* 14. 最终转化呼吁 CTA */
    .cta-container-card {
      background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
      border-radius: var(--radius-lg);
      padding: 60px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 50px;
      align-items: center;
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
    }
    .cta-text-side h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-text-side p {
      font-size: 15px;
      color: #CBD5E1;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .cta-feature-checklist {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .cta-feature-checklist span {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #93C5FD;
    }
    .cta-form-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    }
    .cta-form-card h3 {
      font-size: 18px;
      margin-bottom: 16px;
      text-align: center;
    }
    .form-group-field {
      margin-bottom: 16px;
    }
    .form-group-field label {
      display: block;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      margin-bottom: 6px;
    }
    .form-input-control {
      width: 100%;
      height: 42px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      outline: none;
      background: #F8FAFC;
    }
    .form-input-control:focus {
      border-color: var(--primary);
      background: #fff;
    }
    .form-btn-submit {
      width: 100%;
      height: 46px;
      margin-top: 10px;
    }

    /* 规范统一页脚 */
    .site-footer {
      background: #0B132B;
      color: #94A3B8;
      padding: 70px 0 0 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-matrix-cols {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-col h4 {
      color: #F8FAFC;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-about-info p {
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 16px;
      color: #94A3B8;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links-list a {
      font-size: 14px;
      color: #94A3B8;
    }
    .footer-links-list a:hover {
      color: #38BDF8;
    }
    .footer-contact-items {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
    }
    .contact-item-row {
      display: flex;
      gap: 8px;
    }
    .contact-item-row span:first-child {
      color: #CBD5E1;
      font-weight: 600;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      font-size: 12px;
      text-align: center;
      color: #64748B;
    }
    .footer-bottom-bar a {
      color: #64748B;
      margin: 0 8px;
    }
    .footer-bottom-bar a:hover {
      color: #94A3B8;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .cards-grid-3x2 { grid-template-columns: repeat(2, 1fr); }
      .products-grid { grid-template-columns: repeat(2, 1fr); }
      .scenario-grid { grid-template-columns: repeat(2, 1fr); }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .pricing-grid { grid-template-columns: 1fr; }
      .pricing-card.featured { transform: none; }
      .footer-matrix-cols { grid-template-columns: repeat(2, 1fr); }
      .concept-box { grid-template-columns: 1fr; }
      .cta-container-card { grid-template-columns: 1fr; gap: 36px; padding: 40px; }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-links, .nav-actions .btn-outline { display: none; }
      .mobile-menu-toggle { display: block; }
      .about-grid { grid-template-columns: 1fr; }
      .cards-grid-3x2 { grid-template-columns: 1fr; }
      .products-grid { grid-template-columns: 1fr; }
      .feature-bubbles-grid { grid-template-columns: repeat(2, 1fr); }
      .case-card-row { grid-template-columns: 1fr; }
      .metrics-bar-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .hero-title { font-size: 32px; }
      .section-title { font-size: 26px; }
      .section-spacing { padding: 60px 0; }
      .mockup-body-split { grid-template-columns: 1fr; }
      .footer-matrix-cols { grid-template-columns: 1fr; }
    }

    @media (max-width: 375px) {
      .container { padding: 0 16px; }
      .hero-title { font-size: 26px; }
      .metrics-bar-grid { grid-template-columns: 1fr; }
      .feature-bubbles-grid { grid-template-columns: 1fr; }
    }