/* CSS Reset */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
      color: #1a202c;
      background-color: #f4f7fc;
    }

    body {
      line-height: 1.6;
    }

    /* 容器规范 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* 宝蓝明艳风 - 核心配色 */
    :root {
      --primary-color: #0f52ba; /* 宝蓝 */
      --primary-bright: #0077ff; /* 明艳蓝 */
      --accent-color: #00d2ff; /* 霓虹青 */
      --text-dark: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e2e8f0;
      --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* 通用区块样式 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-bg-white {
      background-color: var(--bg-white);
    }
    .section-bg-light {
      background-color: var(--bg-light);
    }
    .section-bg-gradient {
      background: linear-gradient(135deg, #f4f7fc 0%, #e6eefc 100%);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 12px;
      color: var(--primary-color);
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 1.1rem;
      text-align: center;
      color: var(--text-muted);
      margin-bottom: 50px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      transition: var(--transition-base);
      text-decoration: none;
    }
    .btn-primary {
      background-color: var(--primary-color);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(15, 82, 186, 0.3);
    }
    .btn-primary:hover {
      background-color: var(--primary-bright);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 119, 255, 0.4);
    }
    .btn-secondary {
      background-color: rgba(15, 82, 186, 0.1);
      color: var(--primary-color);
      border: 1px solid rgba(15, 82, 186, 0.2);
    }
    .btn-secondary:hover {
      background-color: rgba(15, 82, 186, 0.2);
      transform: translateY(-2px);
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--primary-color), var(--primary-bright));
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(15, 82, 186, 0.4);
    }
    .btn-accent:hover {
      background: linear-gradient(135deg, var(--primary-bright), var(--accent-color));
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }
    .logo-area {
      display: flex;
      align-items: center;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 20px;
    }
    .nav-menu a {
      color: var(--text-dark);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition-base);
      padding: 8px 12px;
      border-radius: 6px;
    }
    .nav-menu a:hover {
      color: var(--primary-color);
      background-color: rgba(15, 82, 186, 0.05);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    .nav-actions .ai-page-home-link {
      font-weight: 600;
      color: var(--primary-color);
      text-decoration: none;
      border-bottom: 2px solid var(--primary-color);
      padding-bottom: 2px;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-dark);
    }

    /* Hero 首屏 - 纯色渐变 + 科技几何背景，无图片 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.15) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(15, 82, 186, 0.1) 0%, transparent 50%),
                  var(--bg-white);
      padding: 120px 0 100px 0;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--primary-color);
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      background: linear-gradient(135deg, var(--primary-color), var(--primary-bright), var(--accent-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 35px;
      line-height: 1.8;
    }
    .hero-buttons {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-badge-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .hero-badge {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      color: var(--text-dark);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-badge span {
      width: 6px;
      height: 6px;
      background-color: var(--accent-color);
      border-radius: 50%;
    }
    /* 替代图片的首屏科技感交互卡片 */
    .hero-visual-card {
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid rgba(15, 82, 186, 0.15);
      border-radius: 20px;
      padding: 30px;
      box-shadow: 0 20px 40px rgba(15, 82, 186, 0.08);
      backdrop-filter: blur(8px);
      position: relative;
    }
    .hero-visual-card::before {
      content: '';
      position: absolute;
      top: -2px;
      left: -2px;
      right: -2px;
      bottom: -2px;
      background: linear-gradient(135deg, var(--primary-color), transparent, var(--accent-color));
      border-radius: 22px;
      z-index: -1;
      opacity: 0.3;
    }
    .visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 15px;
    }
    .visual-dots {
      display: flex;
      gap: 6px;
    }
    .visual-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .visual-dots span:nth-child(1) { background-color: #ef4444; }
    .visual-dots span:nth-child(2) { background-color: #f59e0b; }
    .visual-dots span:nth-child(3) { background-color: #10b981; }
    .visual-status {
      font-size: 0.8rem;
      background-color: rgba(16, 185, 129, 0.1);
      color: #10b981;
      padding: 4px 10px;
      border-radius: 20px;
      font-weight: 600;
    }
    .visual-console {
      font-family: monospace;
      font-size: 0.9rem;
      color: var(--text-dark);
      background-color: var(--bg-light);
      padding: 20px;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      min-height: 180px;
      overflow-y: auto;
    }
    .console-line {
      margin-bottom: 8px;
    }
    .console-line-green {
      color: #059669;
    }
    .console-line-blue {
      color: var(--primary-bright);
    }

    /* 数据指标卡片 */
    .metrics-section {
      background-color: var(--primary-color);
      color: #ffffff;
      padding: 50px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 30px;
      text-align: center;
    }
    .metric-card h3 {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--accent-color);
      margin-bottom: 5px;
    }
    .metric-card p {
      font-size: 1rem;
      opacity: 0.9;
    }

    /* 服务能力卡片 (全平台AIGC服务 & 一站式AIGC制作) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }
    .service-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px;
      transition: var(--transition-base);
      position: relative;
      overflow: hidden;
    }
    .service-card::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      height: 4px;
      width: 0;
      background-color: var(--primary-bright);
      transition: var(--transition-base);
    }
    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
      border-color: rgba(15, 82, 186, 0.2);
    }
    .service-card:hover::after {
      width: 100%;
    }
    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      display: inline-block;
      color: var(--primary-color);
    }
    .service-card h3 {
      font-size: 1.3rem;
      margin-bottom: 12px;
      color: var(--text-dark);
    }
    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 15px;
    }
    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .service-tags span {
      font-size: 0.75rem;
      background-color: rgba(15, 82, 186, 0.06);
      color: var(--primary-color);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 关于我们 + 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .about-features {
      margin-top: 30px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .about-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .about-feature-item svg {
      color: var(--primary-bright);
      flex-shrink: 0;
      margin-top: 4px;
    }
    .about-feature-item h4 {
      font-size: 1rem;
      margin-bottom: 4px;
      color: var(--text-dark);
    }
    .about-feature-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .about-media-box {
      background-color: #e2e8f0;
      border-radius: 16px;
      padding: 10px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    }
    .about-media-box img {
      width: 100%;
      border-radius: 12px;
      display: block;
      object-fit: cover;
    }

    /* 全行业解决方案 & 服务网络 */
    .solutions-tabs-container {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    .solutions-tabs {
      display: flex;
      justify-content: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .tab-btn {
      padding: 10px 20px;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 30px;
      cursor: pointer;
      font-weight: 500;
      transition: var(--transition-base);
    }
    .tab-btn.active, .tab-btn:hover {
      background-color: var(--primary-color);
      color: #ffffff;
      border-color: var(--primary-color);
    }
    .tab-content-wrap {
      background-color: var(--bg-white);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
    }
    .tab-pane {
      display: none;
    }
    .tab-pane.active {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .solution-text h3 {
      font-size: 1.8rem;
      margin-bottom: 15px;
      color: var(--primary-color);
    }
    .solution-list {
      margin: 20px 0;
      list-style-position: inside;
      color: var(--text-dark);
    }
    .solution-list li {
      margin-bottom: 10px;
    }
    .solution-media img {
      width: 100%;
      border-radius: 10px;
    }

    /* 流程、技术标准、服务网络卡片 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 30px;
    }
    .step-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      padding: 30px;
      text-align: center;
      position: relative;
    }
    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--primary-color);
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      margin-bottom: 15px;
    }
    .step-card h4 {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }
    .step-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 对比评测板块 */
    .rating-header {
      text-align: center;
      background: linear-gradient(135deg, rgba(15, 82, 186, 0.05), rgba(0, 210, 255, 0.05));
      border-radius: 16px;
      padding: 30px;
      margin-bottom: 40px;
      border: 1px solid rgba(15, 82, 186, 0.1);
    }
    .rating-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1;
    }
    .rating-stars {
      color: #f59e0b;
      font-size: 1.8rem;
      margin: 10px 0;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      background-color: var(--bg-white);
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background-color: var(--bg-light);
      font-weight: 700;
      color: var(--text-dark);
    }
    .compare-table tbody tr:hover {
      background-color: rgba(15, 82, 186, 0.02);
    }
    .badge-highlight {
      background-color: rgba(16, 185, 129, 0.1);
      color: #10b981;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: bold;
      display: inline-block;
    }

    /* 客户案例中心 & 宣传展示图 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }
    .case-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      transition: var(--transition-base);
    }
    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    }
    .case-img-box {
      position: relative;
      height: 200px;
      overflow: hidden;
      background-color: #cbd5e1;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 24px;
    }
    .case-tag {
      font-size: 0.75rem;
      background-color: var(--primary-color);
      color: #ffffff;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .case-content h4 {
      font-size: 1.2rem;
      margin-bottom: 10px;
      color: var(--text-dark);
    }
    .case-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* Token 比价参考表 */
    .token-price-section .table-container {
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    }

    /* 培训业务（职业技术培训 / 人工智能培训） */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }
    .training-card {
      background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      text-align: center;
      transition: var(--transition-base);
    }
    .training-card:hover {
      border-color: var(--primary-bright);
      transform: translateY(-5px);
    }
    .training-icon {
      font-size: 2.2rem;
      color: var(--primary-color);
      margin-bottom: 15px;
    }
    .training-card h4 {
      font-size: 1.1rem;
      color: var(--text-dark);
      margin-bottom: 10px;
    }
    .training-badge {
      display: inline-block;
      font-size: 0.75rem;
      background-color: rgba(15, 82, 186, 0.1);
      color: var(--primary-color);
      padding: 2px 8px;
      border-radius: 12px;
      font-weight: 600;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }
    .review-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      border: 1px solid var(--border-color);
      padding: 30px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.01);
    }
    .review-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 15px;
    }
    .avatar-placeholder {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: var(--primary-color);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }
    .review-meta h5 {
      font-size: 1rem;
      color: var(--text-dark);
    }
    .review-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .review-body {
      font-size: 0.95rem;
      color: var(--text-dark);
      font-style: italic;
    }

    /* 常见问题 FAQ (折叠面板) */
    .faq-wrapper {
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition-base);
    }
    .faq-question {
      padding: 20px 24px;
      font-weight: 600;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      color: var(--primary-color);
      transition: var(--transition-base);
    }
    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: var(--bg-light);
    }
    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
    }

    /* 自助排查 / AI 术语百科 / 行业资讯 */
    .knowledge-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }
    .knowledge-column h3 {
      font-size: 1.4rem;
      border-bottom: 2px solid var(--primary-color);
      padding-bottom: 10px;
      margin-bottom: 20px;
      color: var(--text-dark);
    }
    .knowledge-list {
      list-style: none;
    }
    .knowledge-list li {
      margin-bottom: 15px;
    }
    .knowledge-list a {
      color: var(--primary-bright);
      text-decoration: none;
      font-weight: 500;
      display: block;
      transition: var(--transition-base);
    }
    .knowledge-list a:hover {
      color: var(--primary-color);
      text-decoration: underline;
    }
    .knowledge-list p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 智能需求匹配与联系我们 - 表单与联系信息 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
    }
    .form-box {
      background-color: var(--bg-white);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--text-dark);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      outline: none;
      transition: var(--transition-base);
      font-size: 0.95rem;
    }
    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }
    .contact-info-panel {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    .info-item {
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }
    .info-icon {
      font-size: 1.5rem;
      color: var(--primary-color);
      flex-shrink: 0;
    }
    .info-content h4 {
      font-size: 1.1rem;
      margin-bottom: 5px;
      color: var(--text-dark);
    }
    .info-content p, .info-content a {
      color: var(--text-muted);
      font-size: 0.95rem;
      text-decoration: none;
    }
    .qrcode-box {
      display: flex;
      gap: 20px;
      margin-top: 20px;
      align-items: center;
      flex-wrap: wrap;
    }
    .qrcode-card {
      text-align: center;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 15px;
      border-radius: 12px;
      max-width: 150px;
    }
    .qrcode-card img {
      width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 8px;
    }
    .qrcode-card p {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--text-dark);
    }

    /* 加盟代理模块 */
    .agent-box {
      background: linear-gradient(135deg, var(--primary-color), var(--primary-bright));
      color: #ffffff;
      border-radius: 20px;
      padding: 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .agent-box::before {
      content: '';
      position: absolute;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      top: -100px;
      right: -100px;
    }
    .agent-box h3 {
      font-size: 2.2rem;
      margin-bottom: 20px;
    }
    .agent-box p {
      font-size: 1.1rem;
      max-width: 800px;
      margin: 0 auto 30px auto;
      opacity: 0.9;
    }

    /* 页脚 */
    footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      font-size: 0.9rem;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 20px;
      position: relative;
    }
    .footer-col h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 30px;
      height: 2px;
      background-color: var(--accent-color);
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition-base);
    }
    .footer-links a:hover {
      color: #ffffff;
      padding-left: 5px;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 30px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }
    .footer-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
    }
    .footer-friend-links a {
      color: #64748b;
      text-decoration: none;
      transition: var(--transition-base);
    }
    .footer-friend-links a:hover {
      color: #ffffff;
    }

    /* 浮动客服 */
    .float-kefu {
      position: fixed;
      right: 30px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-item {
      width: 50px;
      height: 50px;
      background-color: var(--primary-color);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
      transition: var(--transition-base);
      position: relative;
    }
    .float-item:hover {
      background-color: var(--primary-bright);
      transform: scale(1.05);
    }
    .float-item svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }
    .float-item .popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 15px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      display: none;
      width: 160px;
      text-align: center;
    }
    .float-item .popover img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 8px;
    }
    .float-item .popover p {
      color: var(--text-dark);
      font-size: 0.8rem;
      font-weight: bold;
    }
    .float-item:hover .popover {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .hero-buttons {
        justify-content: center;
      }
      .hero-badge-list {
        justify-content: center;
      }
      .about-grid, .tab-pane.active, .contact-grid {
        grid-template-columns: 1fr;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-menu.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
    }