/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-dark: #0A3258;
      --primary-light: #EBF4FC;
      --accent: #00A887;
      --accent-hover: #008F72;
      --accent-soft: rgba(0, 168, 135, 0.12);
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-slate: #0B1320;
      --bg-slate-card: #152238;
      --text-main: #0A0F1D;
      --text-body: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-light: #F1F5F9;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px rgba(15, 76, 129, 0.04);
      --shadow-md: 0 8px 24px -4px rgba(15, 76, 129, 0.08);
      --shadow-lg: 0 16px 36px -6px rgba(15, 76, 129, 0.12);
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      --transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

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

    body {
      font-family: var(--font-family);
      color: var(--text-body);
      background-color: var(--bg-main);
      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;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

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

    /* 顶部通告条与导航 */
    .topbar {
      background-color: #0A192F;
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 6px 0;
    }
    .topbar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #38BDF8;
    }
    .topbar-badge span {
      display: inline-block;
      width: 6px;
      height: 6px;
      background-color: var(--accent);
      border-radius: 50%;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), #1B74BA);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 20px;
      box-shadow: 0 4px 12px rgba(15, 76, 129, 0.25);
    }
    .brand-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
      line-height: 1.2;
    }
    .brand-sub {
      display: block;
      font-size: 0.72rem;
      font-weight: 500;
      color: var(--text-muted);
      letter-spacing: 0.05em;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
      padding: 8px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(15, 76, 129, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(15, 76, 129, 0.35);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(0, 168, 135, 0.25);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--text-body);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .btn-lg {
      padding: 14px 30px;
      font-size: 1.05rem;
    }

    /* 板块通用头部 */
    .section-padding {
      padding: 92px 0;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: var(--primary-light);
      padding: 5px 14px;
      border-radius: 9999px;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 1.025rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏视效展台 (Hero) */
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #FFFFFF 0%, #F0F6FB 100%);
      padding: 70px 0 90px 0;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-wrap {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-sale {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: #FEF2F2;
      border: 1px solid #FECACA;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 20px;
    }
    .badge-burst {
      background: #EF4444;
      color: #fff;
      font-size: 0.72rem;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .badge-text {
      font-size: 0.85rem;
      color: #991B1B;
      font-weight: 600;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.22;
      color: var(--text-main);
      margin-bottom: 20px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-description {
      font-size: 1.1rem;
      color: var(--text-body);
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }
    .hero-metric-item h4 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
    }
    .hero-metric-item p {
      font-size: 0.825rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .hero-media-box {
      position: relative;
    }
    .hero-img-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .hero-img-card img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .hero-floating-status {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(11, 19, 32, 0.88);
      backdrop-filter: blur(10px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .status-item {
      font-size: 0.85rem;
    }
    .status-item strong {
      display: block;
      color: var(--accent);
      font-size: 1.1rem;
      font-weight: 700;
    }

    /* 2. 痛点诊断区 */
    .challenges-section {
      background-color: var(--bg-white);
    }
    .challenges-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .challenge-card {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      position: relative;
      transition: var(--transition);
    }
    .challenge-card:hover {
      transform: translateY(-4px);
      border-color: #CBD5E1;
      box-shadow: var(--shadow-md);
    }
    .challenge-pill {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: #D97706;
      background: #FEF3C7;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 18px;
    }
    .challenge-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .challenge-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 产品方案区 */
    .solution-section {
      background-color: #F8FAFC;
    }
    .solution-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .solution-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
    }
    .solution-media img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .solution-content h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .solution-content p {
      font-size: 1rem;
      color: var(--text-body);
      margin-bottom: 24px;
      line-height: 1.75;
    }
    .standard-badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 28px;
    }
    .std-badge {
      background: #FFFFFF;
      border: 1px solid #CBD5E1;
      font-size: 0.825rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      color: var(--primary);
    }

    /* 4. 场景演示 (Bento式布局) */
    .scene-section {
      background: #FFFFFF;
    }
    .scene-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr;
      gap: 28px;
    }
    .scene-card-large {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .scene-card-large img {
      width: 100%;
      height: 250px;
      object-fit: cover;
      border-radius: var(--radius-md);
      margin-top: 24px;
    }
    .scene-card-stacked {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .scene-sub-card {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .scene-sub-card h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .scene-sub-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 核心优势区 (3x2 网格) */
    .features-section {
      background: #F8FAFC;
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 34px 28px;
      transition: var(--transition);
      position: relative;
    }
    .feature-box:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .feature-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
      font-size: 20px;
      font-weight: 700;
    }
    .feature-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-text {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. 算法架构深色区块 (深冷墨青) */
    .deep-tech-section {
      background-color: var(--bg-slate);
      color: #F8FAFC;
      position: relative;
      overflow: hidden;
    }
    .deep-tech-section .section-title {
      color: #FFFFFF;
    }
    .deep-tech-section .section-desc {
      color: #94A3B8;
    }
    .deep-tech-section .section-tag {
      background: rgba(0, 168, 135, 0.2);
      color: var(--accent);
    }
    .tech-pipeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }
    .pipeline-step {
      background: var(--bg-slate-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }
    .pipeline-step::after {
      content: '→';
      position: absolute;
      right: -16px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--accent);
      font-size: 24px;
      font-weight: 700;
    }
    .pipeline-step:last-child::after {
      display: none;
    }
    .step-number {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent);
      letter-spacing: 0.05em;
      margin-bottom: 12px;
    }
    .step-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .step-desc {
      font-size: 0.875rem;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 7. 产品矩阵 */
    .matrix-section {
      background: #FFFFFF;
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 34px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .matrix-badge {
      position: absolute;
      top: 24px;
      right: 24px;
      font-size: 0.75rem;
      font-weight: 700;
      background: var(--primary-light);
      color: var(--primary);
      padding: 4px 10px;
      border-radius: 4px;
    }
    .matrix-name {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      padding-right: 60px;
    }
    .matrix-summary {
      font-size: 0.935rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 24px;
    }
    .matrix-features {
      list-style: none;
      margin-bottom: 28px;
      border-top: 1px dashed var(--border-color);
      padding-top: 18px;
    }
    .matrix-features li {
      font-size: 0.875rem;
      color: var(--text-body);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .matrix-features li span {
      color: var(--accent);
      font-weight: 700;
    }

    /* 8. 成果数据条 */
    .stats-bar-section {
      background: linear-gradient(135deg, var(--primary) 0%, #072744 100%);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .stats-flex {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .stat-item {
      padding: 10px 16px;
      border-right: 1px solid rgba(255, 255, 255, 0.12);
    }
    .stat-item:last-child {
      border-right: none;
    }
    .stat-value {
      font-size: 2.85rem;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .stat-label {
      font-size: 0.95rem;
      color: #E2E8F0;
      font-weight: 500;
    }

    /* 9. 客户故事/实装落地 */
    .cases-section {
      background: #FFFFFF;
    }
    .case-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 64px;
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .case-block:last-child {
      margin-bottom: 0;
    }
    .case-block.reverse {
      grid-template-columns: 1fr 1fr;
      direction: rtl;
    }
    .case-block.reverse .case-content {
      direction: ltr;
    }
    .case-block.reverse .case-img-wrap {
      direction: ltr;
    }
    .case-img-wrap img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      border-radius: var(--radius-md);
    }
    .case-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary);
      background: #FFFFFF;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;}
    .case-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .case-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }
    .case-metrics-badge {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .case-pill {
      background: #FFFFFF;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      padding: 6px 12px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-body);
    }
    .case-pill strong {
      color: var(--primary);
    }

    /* 10. 专家证言与科室反馈 */
    .testimonial-section {
      background: #F8FAFC;
    }
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }
    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }
    .doctor-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .doctor-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: 1.1rem;
    }
    .doctor-info h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .doctor-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 11. 学术动态与行业资讯 */
    .insights-section {
      background: #FFFFFF;
    }
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .insight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .insight-thumb {
      height: 190px;
      overflow: hidden;
    }
    .insight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .insight-card:hover .insight-thumb img {
      transform: scale(1.05);
    }
    .insight-body {
      padding: 24px 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.775rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .insight-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 12px;
    }
    .insight-abstract {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .insight-link {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 12. 套餐对比与部署形态 */
    .compare-section {
      background: #F8FAFC;
    }
    .compare-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .compare-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 38px 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .compare-card.popular {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
    }
    .compare-ribbon {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 999px;
      letter-spacing: 0.05em;
    }
    .compare-plan-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .compare-plan-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 22px;
      min-height: 42px;
    }
    .compare-features-list {
      list-style: none;
      margin-bottom: 30px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .compare-features-list li {
      font-size: 0.875rem;
      color: var(--text-body);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .compare-features-list li::before {
      content: '✔';
      color: var(--accent);
      font-weight: 700;
    }

    /* 13. 合规保障图标条 */
    .assurance-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0;
    }
    .assurance-flex {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .assurance-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .assurance-icon {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .assurance-text h6 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .assurance-text p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 14. 部署合规 FAQ */
    .faq-section {
      background: #F8FAFC;
    }
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item details summary {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item details summary::-webkit-details-marker {
      display: none;
    }
    .faq-item details summary::after {
      content: '+';
      font-size: 1.4rem;
      color: var(--primary);
      font-weight: 400;
    }
    .faq-item details[open] summary::after {
      content: '−';
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 0.935rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid var(--border-light);
      margin-top: 4px;
    }

    /* 15. 转化表单与沙盒预约收口 */
    .conversion-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F0F6FB 100%);
      padding: 80px 0 100px 0;
    }
    .conversion-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .conversion-info h3 {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .conversion-info p {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .direct-contact {
      background: var(--bg-main);
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-color);
    }
    .direct-contact p {
      margin-bottom: 6px;
      font-size: 0.875rem;
    }
    .direct-contact strong {
      color: var(--primary);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.925rem;
      background: #FFFFFF;
      transition: var(--transition);
      outline: none;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
    }

    /* 页脚组件 */
    .site-footer {
      background: var(--bg-slate);
      color: #94A3B8;
      font-size: 0.875rem;
      padding-top: 72px;
      padding-bottom: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: -0.01em;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .disclaimer-box {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      margin-top: 24px;
      font-size: 0.775rem;
      line-height: 1.6;
      color: #64748B;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      font-size: 0.8125rem;
    }

    /* 移动端菜单及响应式调整 */
    .mobile-nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary);
      cursor: pointer;
    }

    @media (max-width: 1024px) {
      .hero-wrap {
        grid-template-columns: 1fr;
      }
      .solution-split {
        grid-template-columns: 1fr;
      }
      .scene-grid {
        grid-template-columns: 1fr;
      }
      .tech-pipeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .pipeline-step::after {
        display: none;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .mobile-nav-toggle {
        display: block;
      }
      .challenges-grid,
      .features-grid,
      .matrix-grid,
      .testimonial-grid,
      .insights-grid,
      .compare-grid {
        grid-template-columns: 1fr;
      }
      .case-block,
      .case-block.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        padding: 24px;
      }
      .stats-flex {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        padding-bottom: 20px;
      }
      .assurance-flex {
        grid-template-columns: 1fr;
      }
      .conversion-card {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.7rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }