/* roulang page: index */
:root {
      --primary: #0F3F7A;
      --primary-hover: #0a2d59;
      --accent: #0066FF;
      --accent-light: #e6f0ff;
      --dark-navy: #0A192F;
      --dark-card: #13243f;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-sub: #64748B;
      --bg-page: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --danger: #EF4444;
      --danger-light: #FEF2F2;
      --success: #10B981;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-subtle: 0 2px 10px rgba(15, 63, 122, 0.04);
      --shadow-card: 0 10px 25px -5px rgba(15, 63, 122, 0.08), 0 8px 10px -6px rgba(15, 63, 122, 0.04);
      --shadow-hover: 0 20px 30px -10px rgba(0, 102, 255, 0.18);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 15px rgba(0, 0, 0, 0.03);
    }

    .top-bar {
      background-color: var(--dark-navy);
      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-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #38BDF8;
      font-weight: 500;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--success);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--success);
    }

    .main-nav {
      padding: 16px 0;
    }

    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .logo-icon {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--accent), var(--primary));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.25rem;
      box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
    }

    .logo-text {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .logo-tag {
      font-size: 0.7rem;
      text-transform: uppercase;
      background: var(--accent-light);
      color: var(--accent);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 700;
      margin-left: 6px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 26px;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: var(--transition);
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      min-height: 44px;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent), var(--primary));
      color: #fff;
      box-shadow: 0 4px 14px rgba(0, 102, 255, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #1a75ff, var(--primary-hover));
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 102, 255, 0.45);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 1px solid #CBD5E1;
    }

    .btn-outline:hover {
      background: #F1F5F9;
      border-color: var(--accent);
      color: var(--accent);
    }

    .btn-white {
      background: #fff;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
    }

    .btn-white:hover {
      background: #f8fafc;
      color: var(--accent);
    }

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

    /* 板块通用体系 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

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

    .section-bg-gray {
      background-color: #F8FAFC;
    }

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

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px;
    }

    .section-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background-color: var(--accent-light);
      color: var(--accent);
      border-radius: 30px;
      font-size: 0.82rem;
      font-weight: 700;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-pill.dark {
      background: rgba(0, 102, 255, 0.15);
      color: #60A5FA;
      border: 1px solid rgba(96, 165, 250, 0.3);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .section-bg-dark .section-title {
      color: #F8FAFC;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    .section-bg-dark .section-subtitle {
      color: #94A3B8;
    }

    /* 板块 1: Hero 首屏 */
    .hero-banner {
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 60px 0 80px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-content h1 span {
      color: var(--accent);
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-metrics-pill {
      display: inline-flex;
      align-items: center;
      gap: 20px;
      background: #fff;
      border: 1px solid var(--border-color);
      padding: 12px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-subtle);
    }

    .metric-item {
      display: flex;
      flex-direction: column;
    }

    .metric-value {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--accent);
    }

    .metric-label {
      font-size: 0.75rem;
      color: var(--text-sub);
    }

    .hero-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 25px 50px -12px rgba(15, 63, 122, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.8);
    }

    .hero-visual img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }

    .hero-tag-overlay {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(10, 25, 47, 0.85);
      backdrop-filter: blur(10px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 板块 2: 传统痛点对比 */
    .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: 28px 24px;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
      border-color: #FCA5A5;
    }

    .pain-icon {
      width: 48px;
      height: 48px;
      background: var(--danger-light);
      color: var(--danger);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 20px;
    }

    .pain-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .pain-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .pain-bottleneck {
      font-size: 0.8rem;
      color: var(--danger);
      font-weight: 600;
      background: var(--danger-light);
      padding: 6px 10px;
      border-radius: 4px;
      display: inline-block;
    }

    /* 板块 3: 架构与技术规格 */
    .solution-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .solution-content h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .solution-content p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 20px;
      background: #fff;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .spec-table th, .spec-table td {
      padding: 12px 16px;
      text-align: left;
      font-size: 0.9rem;
      border-bottom: 1px solid var(--border-color);
    }

    .spec-table th {
      background: #F1F5F9;
      color: var(--text-main);
      font-weight: 700;
      width: 35%;
    }

    .spec-table td {
      color: var(--text-muted);
      font-weight: 500;
    }

    .solution-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .solution-visual img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    /* 板块 4: 6卡核心优势矩阵 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-subtle);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }

    .feature-icon-wrapper {
      width: 56px;
      height: 56px;
      background: var(--accent-light);
      color: var(--accent);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 22px;
      transition: var(--transition);
    }

    .feature-card:hover .feature-icon-wrapper {
      background: var(--accent);
      color: #fff;
    }

    .feature-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .feature-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 5: 3套件产品体系 */
    .suites-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .suite-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .suite-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .suite-card.highlight {
      border: 2px solid var(--accent);
    }

    .suite-badge {
      position: absolute;
      top: 18px;
      right: 18px;
      background: var(--accent);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 20px;
    }

    .suite-header {
      padding: 36px 30px 24px;
      background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .suite-title {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .suite-target {
      font-size: 0.88rem;
      color: var(--accent);
      font-weight: 600;
    }

    .suite-body {
      padding: 30px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .suite-checklist {
      list-style: none;
      margin-bottom: 30px;
    }

    .suite-checklist li {
      font-size: 0.92rem;
      color: var(--text-muted);
      padding: 10px 0;
      display: flex;
      align-items: center;
      gap: 12px;
      border-bottom: 1px dashed #F1F5F9;
    }

    .suite-checklist li i {
      color: var(--success);
      font-size: 0.95rem;
    }

    /* 板块 6: 算法原理深色全宽 */
    .pipeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .pipeline-step {
      background: rgba(255, 255, 255, 0.04);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: var(--transition);
      position: relative;
    }

    .pipeline-step:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(96, 165, 250, 0.4);
      transform: translateY(-4px);
    }

    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(96, 165, 250, 0.35);
      line-height: 1;
      margin-bottom: 16px;
      font-family: monospace;
    }

    .step-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 板块 7: 业务场景矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-img-box {
      height: 180px;
      overflow: hidden;
    }

    .scenario-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .scenario-card:hover .scenario-img-box img {
      transform: scale(1.06);
    }

    .scenario-body {
      padding: 24px 20px;
    }

    .scenario-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .scenario-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .scenario-tag {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--accent);
      background: var(--accent-light);
      padding: 4px 8px;
      border-radius: 4px;
      display: inline-block;
    }

    /* 板块 8: 成果统计数据条 */
    .metrics-bar-wrap {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
    }

    .stats-flex {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .stat-box {
      border-right: 1px solid var(--border-color);
      padding: 0 16px;
    }

    .stat-box:last-child {
      border-right: none;
    }

    .stat-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 12px;
      font-family: Arial, sans-serif;
    }

    .stat-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .stat-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 板块 9: 职业联赛用户故事 */
    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }

    .story-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      display: flex;
      flex-direction: column;
    }

    .story-media {
      height: 240px;
      overflow: hidden;
      position: relative;
    }

    .story-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .story-content {
      padding: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .story-quote {
      font-size: 1.05rem;
      color: var(--text-main);
      font-weight: 500;
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }

    .story-author {
      display: flex;
      align-items: center;
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }

    .story-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--accent-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.25rem;
    }

    .story-meta h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
    }

    .story-meta span {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 板块 10: 口碑证言 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testimonial-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
      border-color: var(--accent);
    }

    .stars-bar {
      color: #F59E0B;
      font-size: 0.9rem;
      margin-bottom: 16px;
      display: flex;
      gap: 4px;
    }

    .testimonial-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .testimonial-user {
      display: flex;
      flex-direction: column;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }

    .user-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-role {
      font-size: 0.82rem;
      color: var(--text-sub);
    }

    /* 板块 11: 资讯前沿 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .news-media {
      height: 190px;
      overflow: hidden;
    }

    .news-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .news-card:hover .news-media img {
      transform: scale(1.05);
    }

    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-sub);
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-link {
      color: var(--accent);
      font-weight: 600;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块 12: 手风琴 FAQ */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-header {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #fff;
      user-select: none;
    }

    .faq-header:hover {
      color: var(--accent);
    }

    .faq-icon {
      font-size: 1rem;
      color: var(--accent);
      transition: transform 0.3s ease;
    }

    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FAFAFA;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .faq-item.open .faq-body {
      max-height: 300px;
      padding: 16px 24px 24px;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
    }

    /* 底部方案预约转化区 */
    .cta-section {
      background: linear-gradient(135deg, var(--dark-navy) 0%, #0F3F7A 100%);
      color: #fff;
      padding: 90px 0;
      position: relative;
    }

    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .cta-info h2 {
      font-size: 2.3rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 20px;
    }

    .cta-info p {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.75;
      margin-bottom: 30px;
    }

    .cta-features-list {
      list-style: none;
    }

    .cta-features-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: #E2E8F0;
      margin-bottom: 12px;
    }

    .cta-form-box {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
      color: var(--text-main);
    }

    .cta-form-box h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .cta-form-box p {
      font-size: 0.88rem;
      color: var(--text-sub);
      margin-bottom: 24px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      height: 46px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      transition: var(--transition);
      background: #F8FAFC;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--accent);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
    }

    .form-select {
      width: 100%;
      height: 46px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      background: #F8FAFC;
      cursor: pointer;
    }

    .form-btn {
      width: 100%;
      height: 48px;
      font-size: 1.05rem;
      font-weight: 700;
      margin-top: 10px;
    }

    .form-footer-tip {
      font-size: 0.75rem;
      color: var(--text-sub);
      text-align: center;
      margin-top: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    /* 商务页脚 */
    .site-footer {
      background-color: #07111F;
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 50px;
    }

    .footer-brand h4 {
      font-size: 1.3rem;
      color: #fff;
      font-weight: 800;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }

    .footer-col h5 {
      font-size: 1rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 12px;
    }

    .footer-links a:hover {
      color: #38BDF8;
      padding-left: 4px;
    }

    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 14px;
      line-height: 1.5;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
    }

    .footer-bottom a {
      color: #94A3B8;
    }

    .footer-bottom a:hover {
      color: #38BDF8;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid, .solution-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .pain-grid, .pipeline-grid, .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .features-grid, .suites-grid, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-visual img, .solution-visual img {
        height: 360px;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 75px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
        display: none;
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-action .btn {
        display: none;
      }
      .pain-grid, .features-grid, .suites-grid, .pipeline-grid, .scenario-grid, .story-grid, .testimonial-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .stats-flex {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .stat-box {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 20px;
      }
      .stat-box:nth-child(3), .stat-box:nth-child(4) {
        border-bottom: none;
        padding-bottom: 0;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .cta-form-box {
        padding: 24px 20px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

    @media (max-width: 480px) {
      .stats-flex {
        grid-template-columns: 1fr;
      }
      .stat-box {
        border-bottom: 1px solid var(--border-color);
      }
      .stat-box:last-child {
        border-bottom: none;
      }
    }