/* roulang page: index */
:root {
      --primary: #0F2B48;
      --primary-dark: #0B192C;
      --secondary: #1E6F5C;
      --accent: #C5A880;
      --bg-light: #F8FAFC;
      --surface: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border: #E2E8F0;
      --border-accent: rgba(197, 168, 128, 0.3);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 4px 16px -2px rgba(15, 43, 72, 0.05);
      --shadow-hover: 0 14px 30px -4px rgba(15, 43, 72, 0.12);
      --container-max: 1240px;
      --transition: all 0.3s 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: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-body);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    .top-bar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 13px;
      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;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-meta-list {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
    }
    .top-meta-list span {
      color: var(--accent);
      margin-right: 4px;
    }
    .site-header {
      background-color: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(8px);
      position: sticky;
      top: 0;
      z-index: 999;
      box-shadow: 0 2px 12px rgba(15, 43, 72, 0.06);
      border-bottom: 1px solid var(--border);
    }
    .nav-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 22px;
      color: var(--primary);
      letter-spacing: -0.01em;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-size: 20px;
      box-shadow: 0 4px 10px rgba(30, 111, 92, 0.3);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--secondary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--secondary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      line-height: 1.4;
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #173f67 100%);
      color: #FFF;
      box-shadow: 0 4px 14px rgba(15, 43, 72, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #173f67 0%, var(--primary) 100%);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(15, 43, 72, 0.32);
    }
    .btn-secondary {
      background-color: var(--secondary);
      color: #FFF;
    }
    .btn-secondary:hover {
      background-color: #175748;
      transform: translateY(-2px);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background-color: transparent;
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: #FFF;
    }
    .btn-ghost-gold {
      border-color: var(--accent);
      color: var(--accent);
      background-color: transparent;
    }
    .btn-ghost-gold:hover {
      background-color: var(--accent);
      color: var(--primary-dark);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--primary);
      margin: 5px 0;
      transition: var(--transition);
    }
    .section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #CBD5E1;
      border-top: 1px solid var(--border-accent);
      border-bottom: 1px solid var(--border-accent);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--secondary);
      margin-bottom: 12px;
      padding: 4px 14px;
      background-color: rgba(30, 111, 92, 0.08);
      border-radius: 99px;
    }
    .section-dark .section-tag {
      background-color: rgba(197, 168, 128, 0.15);
      color: var(--accent);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 18px;
      letter-spacing: -0.01em;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-subtitle {
      color: #94A3B8;
    }

    /* 1. Hero 轮播看板区 */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 10% 20%, rgba(30, 111, 92, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(197, 168, 128, 0.08) 0%, transparent 45%),
                  #F8FAFC;
      padding: 60px 0 80px 0;
      overflow: hidden;
    }
    .hero-slider-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      background-color: #0B192C;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(11, 25, 44, 0.18);
      border: 1px solid var(--border-accent);
    }
    .hero-slide {
      display: none;
      position: relative;
      min-height: 560px;
      background-size: cover;
      background-position: center;
      align-items: center;
    }
    .hero-slide.active {
      display: flex;
      animation: fadeIn 0.8s ease-in-out;
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: scale(1.02); }
      to { opacity: 1; transform: scale(1); }
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(11, 25, 44, 0.95) 0%, rgba(11, 25, 44, 0.82) 55%, rgba(11, 25, 44, 0.4) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
      padding: 64px 48px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: rgba(197, 168, 128, 0.2);
      border: 1px solid var(--accent);
      color: var(--accent);
      padding: 6px 16px;
      border-radius: 99px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 700;
      color: #FFFFFF;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 22px;
    }
    .hero-desc {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-ctrl {
      position: absolute;
      bottom: 28px;
      right: 48px;
      display: flex;
      align-items: center;
      gap: 14px;
      z-index: 3;
    }
    .hero-btn-nav {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #FFF;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }
    .hero-btn-nav:hover {
      background: var(--accent);
      color: var(--primary-dark);
    }
    .hero-dots {
      display: flex;
      gap: 8px;
    }
    .hero-dot {
      width: 10px;
      height: 10px;
      border-radius: 99px;
      background: rgba(255, 255, 255, 0.3);
      cursor: pointer;
      transition: var(--transition);
    }
    .hero-dot.active {
      width: 28px;
      background: var(--accent);
    }

    /* 2. 企业合规综合介绍与资质认证区 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }
    .about-image-box {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-hover);
    }
    .about-image-box img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .about-cert-float {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      background: rgba(15, 43, 72, 0.92);
      backdrop-filter: blur(8px);
      padding: 18px 24px;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--accent);
      color: #FFF;
    }
    .about-cert-float strong {
      display: block;
      color: var(--accent);
      font-size: 15px;
      margin-bottom: 4px;
    }
    .about-cert-float p {
      font-size: 13px;
      color: #E2E8F0;
      line-height: 1.5;
    }
    .cert-specs {
      margin-top: 32px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .spec-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      padding: 18px;
      border-radius: var(--radius-sm);
    }
    .spec-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .spec-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 六大核心优势矩阵 */
    .grid-3-col {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      padding: 32px 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 111, 92, 0.3);
    }
    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background-color: rgba(30, 111, 92, 0.1);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 22px;
      font-weight: 700;
    }
    .card-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .card-body {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      flex-grow: 1;
    }

    /* 4. 热门服务方案 */
    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .service-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-5px);
    }
    .service-card-img {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .service-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .service-card:hover .service-card-img img {
      transform: scale(1.05);
    }
    .service-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background-color: rgba(15, 43, 72, 0.9);
      color: var(--accent);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 600;
    }
    .service-content {
      padding: 30px 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .service-list {
      list-style: none;
      margin: 18px 0 26px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex-grow: 1;
    }
    .service-list li {
      font-size: 13px;
      color: var(--text-muted);
      position: relative;
      padding-left: 18px;
      line-height: 1.5;
    }
    .service-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--secondary);
      font-weight: 700;
    }

    /* 5. 深色理念与风险全景透视区 */
    .radar-model-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-accent);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .model-box {
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 24px;
      background: rgba(11, 25, 44, 0.6);
    }
    .model-header {
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .risk-bar {
      margin-bottom: 16px;
    }
    .risk-label {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 6px;
      color: #E2E8F0;
    }
    .risk-progress {
      height: 8px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      overflow: hidden;
    }
    .risk-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--secondary), var(--accent));
      border-radius: 4px;
    }

    /* 6. 典型实操案例两栏 */
    .scenario-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 60px;
    }
    .scenario-item:last-child {
      margin-bottom: 0;
    }
    .scenario-item.reverse {
      grid-template-columns: 1fr 1fr;
    }
    .scenario-item.reverse .scenario-text {
      order: 1;
    }
    .scenario-item.reverse .scenario-visual {
      order: 2;
    }
    .scenario-visual {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .scenario-visual img {
      width: 100%;
      height: 360px;
      object-fit: cover;
    }
    .timeline-steps {
      margin-top: 24px;
      border-left: 2px dashed var(--border);
      padding-left: 20px;
      margin-left: 8px;
    }
    .timeline-step {
      position: relative;
      margin-bottom: 16px;
    }
    .timeline-step:last-child {
      margin-bottom: 0;
    }
    .timeline-step::before {
      content: '';
      position: absolute;
      left: -27px;
      top: 6px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--secondary);
      border: 2px solid #FFF;
    }

    /* 7. 关键合规治理数据条 */
    .metrics-section {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: #FFF;
      padding: 60px 0;
      border-top: 2px solid var(--accent);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-card {
      padding: 16px;
    }
    .metric-number {
      font-family: Georgia, "Times New Roman", serif;
      font-size: 46px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-unit {
      font-size: 20px;
      margin-left: 2px;
      font-family: -apple-system, sans-serif;
    }
    .metric-label {
      font-size: 15px;
      color: #E2E8F0;
      font-weight: 500;
    }
    .metric-sub {
      font-size: 12px;
      color: #94A3B8;
      margin-top: 6px;
    }

    /* 8. 客户实名评价墙 */
    .testimonial-card {
      background: #FFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }
    .quote-mark {
      font-size: 32px;
      line-height: 1;
      color: var(--accent);
      font-family: Georgia, serif;
      margin-bottom: 12px;
    }
    .testimonial-text {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .client-info {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border);
      padding-top: 18px;
    }
    .client-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid var(--border);
    }
    .client-meta strong {
      display: block;
      font-size: 14px;
      color: var(--text-main);
    }
    .client-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 9. 前沿资讯与监管动态 */
    .news-card {
      background: #FFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-img {
      height: 180px;
      overflow: hidden;
    }
    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-inner {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--secondary);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--secondary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .news-link:hover {
      color: var(--primary);
    }

    /* 10. 流程步骤横向4步 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .process-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .process-step-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
      margin-bottom: 16px;
    }
    .process-step-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .process-step-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 14px;
    }
    .process-deliverable {
      display: inline-block;
      font-size: 12px;
      padding: 3px 8px;
      background: rgba(30, 111, 92, 0.08);
      color: var(--secondary);
      border-radius: 4px;
      font-weight: 600;
    }

    /* 11. FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item[open] {
      border-color: var(--secondary);
      box-shadow: var(--shadow-sm);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: '+';
      font-size: 20px;
      color: var(--text-muted);
      font-weight: 400;
      transition: var(--transition);
    }
    .faq-item[open] .faq-summary::after {
      content: '−';
      color: var(--secondary);
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.8;
      border-top: 1px solid rgba(0, 0, 0, 0.04);
      padding-top: 14px;
    }

    /* 12. 底部转化条 */
    .contact-card-box {
      background: linear-gradient(135deg, #0F2B48 0%, #0B192C 100%);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-accent);
      padding: 50px 44px;
      color: #FFF;
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
    }
    .contact-left h3 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 14px;
      color: #FFFFFF;
    }
    .contact-left p {
      color: #CBD5E1;
      font-size: 15px;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .nda-pill {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(197, 168, 128, 0.15);
      border: 1px solid var(--accent);
      color: var(--accent);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 13px;
    }
    .contact-form {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-hover);
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-input, .form-textarea, .form-select {
      width: 100%;
      padding: 10px 14px;
      font-size: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      background-color: #F8FAFC;
    }
    .form-input:focus, .form-textarea:focus, .form-select:focus {
      border-color: var(--secondary);
      background-color: #FFF;
      box-shadow: 0 0 0 3px rgba(30, 111, 92, 0.12);
    }
    .form-submit {
      width: 100%;
      padding: 12px;
      background: var(--primary);
      color: #FFF;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .form-submit:hover {
      background: #173f67;
    }

    /* Footer */
    .site-footer {
      background-color: #07101C;
      color: #94A3B8;
      padding: 70px 0 24px 0;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .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: 16px;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-col p {
      line-height: 1.8;
      font-size: 13px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }
    .footer-icp {
      margin-top: 8px;
    }
    .footer-icp a {
      color: #64748B;
      text-decoration: underline;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .about-grid, .radar-model-wrap, .contact-card-box {
        grid-template-columns: 1fr;
      }
      .grid-3-col {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        display: none;
      }
      .nav-menu.active {
        display: flex;
      }
      .hero-title {
        font-size: 28px;
      }
      .grid-3-col, .process-grid, .scenario-item, .metrics-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      .scenario-item.reverse .scenario-text {
        order: 2;
      }
      .scenario-item.reverse .scenario-visual {
        order: 1;
      }
      .contact-card-box {
        padding: 30px 20px;
      }
      .section {
        padding: 60px 0;
      }
      .top-bar {
        display: none;
      }
    }