/* roulang page: index */
:root {
      --primary: #0F3E2E;
      --primary-light: #165b43;
      --accent: #10B981;
      --accent-hover: #059669;
      --warning: #F59E0B;
      --dark: #0A1612;
      --dark-card: #12241F;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --border: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.1);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    ul, ol {
      list-style: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font: inherit;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.2s ease;
      font-size: 0.95rem;
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
    }
    .btn-dark {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-dark:hover {
      background-color: var(--primary-light);
    }
    .btn-outline {
      border-color: var(--border);
      background-color: #FFFFFF;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.5px;
    }
    .badge-accent {
      background-color: rgba(16, 185, 129, 0.12);
      color: var(--accent);
    }
    .badge-warning {
      background-color: rgba(245, 158, 11, 0.12);
      color: var(--warning);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-header .section-tag {
      color: var(--accent);
      font-weight: 700;
      font-size: 0.875rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }
    .section-header h2 {
      font-size: 2.1rem;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 16px;
      font-weight: 800;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 顶部双行导航 */
    .top-bar {
      background-color: var(--dark);
      color: #94A3B8;
      font-size: 0.8rem;
      height: 38px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .top-bar-inner {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .top-meta {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .main-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }
    .nav-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary);
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--accent);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background-color: var(--accent);
      transition: width 0.2s ease;
    }
    .nav-links a:hover::after {
      width: 100%;
    }

    /* Hero：获客提问式首屏 */
    #hero {
      position: relative;
      padding: 90px 0;
      background: linear-gradient(145deg, #0A1612 0%, #0F3E2E 60%, #071a14 100%);
      color: #FFFFFF;
      overflow: hidden;
    }
    #hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background-image: url('/assets/images/a91d3eb9622a0eec.png');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-pain {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(16, 185, 129, 0.15);
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 6px 14px;
      border-radius: 9999px;
      color: #A7F3D0;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-content h1 {
      font-size: 2.85rem;
      line-height: 1.22;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-content p.hero-desc {
      font-size: 1.05rem;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 32px;
    }
    .hero-meta-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .meta-point-num {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--accent);
      font-family: -apple-system, monospace;
    }
    .meta-point-label {
      font-size: 0.8rem;
      color: #94A3B8;
    }

    /* Hero 右侧获客表单卡 */
    .hero-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
      color: var(--text-main);
    }
    .form-title {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary);
    }
    .form-subtitle {
      font-size: 0.875rem;
      color: var(--text-light);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-muted);
    }
    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: border 0.2s ease;
      background-color: #F8FAFC;
    }
    .form-control:focus {
      border-color: var(--accent);
      background-color: #FFFFFF;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .form-notice {
      font-size: 0.75rem;
      color: var(--text-light);
      margin-top: 14px;
      text-align: center;
      line-height: 1.5;
    }

    /* 板块通用间距 */
    section {
      padding: 88px 0;
    }
    .section-white {
      background-color: #FFFFFF;
    }
    .section-gray {
      background-color: var(--bg-light);
    }
    .section-dark {
      background-color: var(--dark);
      color: #FFFFFF;
    }

    /* 2. 服务亮点 (严格6宫格) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card {
      background-color: #FFFFFF;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(16, 185, 129, 0.4);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background-color: rgba(16, 185, 129, 0.1);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .service-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      background-color: var(--bg-light);
      border-radius: 4px;
      color: var(--text-light);
      border: 1px solid #EDF2F7;
    }

    /* 3. 时段卡板块 (赛程动态时序流) */
    .timeline-schedule-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .schedule-card {
      background-color: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .schedule-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }
    .schedule-card-header {
      background-color: #F1F5F9;
      padding: 12px 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border);
    }
    .schedule-league {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary);
    }
    .schedule-time {
      font-size: 0.75rem;
      color: var(--text-light);
      font-family: monospace;
    }
    .schedule-card-body {
      padding: 20px 16px;
    }
    .teams-vs {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-bottom: 16px;
    }
    .team-item {
      display: flex;
      justify-content: space-between;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .metric-badges {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      background: var(--bg-light);
      padding: 10px;
      border-radius: var(--radius-sm);
      font-size: 0.75rem;
    }
    .metric-badge-item span {
      display: block;
      color: var(--text-light);
    }
    .metric-badge-item strong {
      color: var(--text-main);
      font-family: monospace;
      font-size: 0.85rem;
    }

    /* 4. 架构全景与技术参数 (Intro) */
    .architecture-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-content h3 {
      font-size: 1.75rem;
      margin-bottom: 16px;
      color: var(--text-main);
      font-weight: 700;
    }
    .arch-specs-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .arch-spec-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .arch-spec-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background-color: rgba(16, 185, 129, 0.15);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 0.8rem;
      font-weight: bold;
      margin-top: 2px;
    }
    .arch-spec-text h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .arch-spec-text p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .arch-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
    }

    /* 5. 热门数据产品与 API 终端 (3列高阶卡片) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      align-items: stretch;
    }
    .product-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
    }
    .product-card.featured {
      border: 2px solid var(--accent);
      box-shadow: 0 12px 32px rgba(16, 185, 129, 0.15);
      transform: translateY(-8px);
    }
    .product-badge-flag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--accent);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 9999px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .product-title {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .product-sub {
      font-size: 0.9rem;
      color: var(--text-light);
      margin-bottom: 24px;
      min-height: 42px;
    }
    .product-latency {
      background: var(--bg-light);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
    }
    .product-latency span {
      color: var(--text-light);
    }
    .product-latency strong {
      color: var(--accent);
      font-family: monospace;
    }
    .product-features-list {
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .product-features-list li {
      padding: 8px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: 1px dashed #F1F5F9;
    }
    .product-features-list li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 6. 深色数据流转/清洗模型/算法理念 (高对比沉浸区) */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .process-step-card {
      background: var(--dark-card);
      border: 1px solid var(--border-dark);
      padding: 30px 24px;
      border-radius: var(--radius-md);
      position: relative;
    }
    .process-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
      font-family: monospace;
      opacity: 0.8;
      margin-bottom: 12px;
    }
    .process-step-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #FFFFFF;
    }
    .process-step-card p {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.65;
    }

    /* 7. 实盘场景与机构案例 (切片场景) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      height: 190px;
      overflow: hidden;
      background-color: #E2E8F0;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 24px;
    }
    .case-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .case-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .case-stat-badge {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: var(--bg-light);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .case-stat-badge b {
      color: var(--accent);
    }

    /* 8. 关键数据量化指标条 (Stats) */
    #stats {
      background: linear-gradient(90deg, #0A1612 0%, #0F3E2E 100%);
      color: #FFFFFF;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stats-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-item-val {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--accent);
      font-family: monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .stat-item-title {
      font-size: 1rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 4px;
    }
    .stat-item-desc {
      font-size: 0.8rem;
      color: #94A3B8;
    }

    /* 9. 专家与量化分析师评价 (Reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background-color: #FFFFFF;
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-quote {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-light);
      border: 2px solid var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--primary);
    }
    .reviewer-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-meta span {
      font-size: 0.75rem;
      color: var(--text-light);
    }

    /* 10. 足球彩票数据资讯与分析动态 (News) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background-color: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .news-img-box {
      height: 180px;
      overflow: hidden;
    }
    .news-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 24px;
    }
    .news-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 0.75rem;
      color: var(--text-light);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-snippet {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-link:hover {
      color: var(--accent-hover);
    }

    /* 11. 合作伙伴与数据源墙 (Partners) */
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .partner-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      padding: 20px 10px;
      border-radius: var(--radius-sm);
      text-align: center;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
    }
    .partner-item:hover {
      border-color: var(--accent);
      color: var(--accent);
    }

    /* 12. FAQ 原生手风琴折叠卡片 */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
    }
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.active {
      border-color: var(--accent);
    }
    .faq-trigger {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-trigger span.faq-icon {
      font-size: 1.2rem;
      color: var(--text-light);
      transition: transform 0.2s ease;
    }
    .faq-item.active .faq-trigger span.faq-icon {
      transform: rotate(45deg);
      color: var(--accent);
    }
    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }
    .faq-item.active .faq-body {
      display: block;
    }

    /* 13. 底前转化与合规保障 (CTA) */
    #cta {
      background: linear-gradient(135deg, var(--primary) 0%, #0A1612 100%);
      color: #FFFFFF;
      padding: 80px 0;
      text-align: center;
    }
    .cta-box {
      max-width: 760px;
      margin: 0 auto;
    }
    .cta-box h2 {
      font-size: 2.3rem;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-box p {
      font-size: 1.05rem;
      color: #CBD5E1;
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 28px;
    }
    .cta-compliance-notice {
      font-size: 0.8rem;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
    }

    /* 统一页脚 */
    footer {
      background-color: var(--dark);
      color: #94A3B8;
      padding: 70px 0 30px 0;
      border-top: 1px solid var(--border-dark);
      font-size: 0.88rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col p {
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      text-align: center;
      font-size: 0.8rem;
    }
    .disclaimer {
      color: #64748B;
      font-size: 0.75rem;
      line-height: 1.6;
    }

    /* 移动端菜单开关 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .top-bar { display: none; }
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
      }
      .nav-links.show { display: flex; }
      .hero-grid { grid-template-columns: 1fr; }
      .hero-content h1 { font-size: 2.2rem; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .timeline-schedule-grid { grid-template-columns: repeat(2, 1fr); }
      .architecture-wrapper { grid-template-columns: 1fr; }
      .products-grid { grid-template-columns: 1fr; }
      .product-card.featured { transform: none; }
      .process-timeline { grid-template-columns: repeat(2, 1fr); }
      .cases-grid { grid-template-columns: 1fr; }
      .stats-bar-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
      .reviews-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .partners-grid { grid-template-columns: repeat(3, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      section { padding: 56px 0; }
      .section-header h2 { font-size: 1.7rem; }
      .services-grid { grid-template-columns: 1fr; }
      .timeline-schedule-grid { grid-template-columns: 1fr; }
      .process-timeline { grid-template-columns: 1fr; }
      .stats-bar-grid { grid-template-columns: 1fr; }
      .partners-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-meta-points { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
    }