/* 基础重置 */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    :root {
      --primary-color: #6D28D9;
      --primary-light: #8B5CF6;
      --primary-dark: #4C1D95;
      --secondary-color: #EC4899;
      --bg-light: #F9FAFB;
      --bg-card: #FFFFFF;
      --text-main: #1F2937;
      --text-muted: #4B5563;
      --text-light: #9CA3AF;
      --border-color: #E5E7EB;
      --container-width: 1200px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      color: var(--text-main);
      background-color: var(--bg-light);
      overflow-x: hidden;
    }

    /* 辅助样式 */
    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-title {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-title h2 {
      font-size: 2.2rem;
      color: var(--primary-dark);
      margin-bottom: 15px;
      position: relative;
      display: inline-block;
    }

    .section-title h2::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 2px;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 1.1rem;
      max-width: 700px;
      margin: 0 auto;
    }

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

    a:hover {
      color: var(--primary-dark);
    }

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

    /* 按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      border-radius: 8px;
      font-weight: 600;
      transition: var(--transition);
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
      color: #fff !important;
      box-shadow: 0 4px 15px rgba(109, 40, 217, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(109, 40, 217, 0.4);
    }

    .btn-secondary {
      background-color: #fff;
      color: var(--primary-color) !important;
      border: 1px solid var(--primary-color);
    }

    .btn-secondary:hover {
      background-color: var(--primary-light);
      color: #fff !important;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.95);
      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: 80px;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-area img {
      height: 45px;
      width: auto;
    }

    .logo-text {
      font-size: 1.5rem;
      font-weight: 700;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      gap: 20px;
      list-style: none;
    }

    .nav-link {
      color: var(--text-main);
      font-weight: 500;
      padding: 8px 12px;
      font-size: 0.95rem;
      border-radius: 4px;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--primary-color);
      background-color: rgba(109, 40, 217, 0.05);
    }

    .nav-btn-group {
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }

    .menu-toggle span {
      width: 25px;
      height: 3px;
      background-color: var(--primary-color);
      border-radius: 2px;
      transition: var(--transition);
    }

    /* Hero 首屏 - 无任何图片 */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 10% 20%, rgba(109, 40, 217, 0.08) 0%, rgba(236, 72, 153, 0.04) 90.2%);
      padding: 120px 0 100px 0;
      text-align: center;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 60%);
      animation: rotateBg 20s linear infinite;
      z-index: 1;
      pointer-events: none;
    }

    @keyframes rotateBg {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(109, 40, 217, 0.1);
      color: var(--primary-color);
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 20px;
      border: 1px solid rgba(109, 40, 217, 0.2);
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--primary-dark);
      margin-bottom: 25px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.25rem;
      color: var(--text-muted);
      margin-bottom: 40px;
      line-height: 1.6;
    }

    .hero-cta {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    /* 数据指标 */
    .stats-section {
      background-color: var(--bg-card);
      padding: 50px 0;
    }

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

    .stat-card {
      padding: 20px;
      border-radius: 12px;
      background: rgba(109, 40, 217, 0.02);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(109, 40, 217, 0.05);
    }

    .stat-number {
      font-size: 2.5rem;
      font-weight: 750;
      color: var(--primary-color);
      margin-bottom: 5px;
    }

    .stat-label {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
    }

    /* 关于我们与软件介绍 */
    .about-section {
      background-color: var(--bg-light);
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 15px;
      font-size: 1.05rem;
    }

    .feature-list {
      margin-top: 25px;
      list-style: none;
    }

    .feature-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 12px;
      font-weight: 500;
      color: var(--text-main);
    }

    .feature-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--secondary-color);
      font-weight: 900;
      font-size: 1.1rem;
    }

    .about-visual {
      background: linear-gradient(135deg, rgba(109, 40, 217, 0.05), rgba(236, 72, 153, 0.05));
      border-radius: 20px;
      padding: 30px;
      border: 1px solid rgba(109, 40, 217, 0.1);
    }

    /* AIGC 服务体系 & 模型展示 */
    .service-section {
      background-color: var(--bg-card);
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .service-card {
      padding: 40px 30px;
      background-color: #fff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(109, 40, 217, 0.08);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      display: inline-block;
    }

    .service-card h3 {
      font-size: 1.4rem;
      color: var(--primary-dark);
      margin-bottom: 15px;
    }

    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    .tag-cloud-container {
      margin-top: 50px;
      padding: 30px;
      background: rgba(109, 40, 217, 0.02);
      border-radius: 12px;
      border: 1px solid var(--border-color);
      text-align: center;
    }

    .tag-cloud-title {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .tag-cloud span {
      padding: 6px 14px;
      background-color: #fff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .tag-cloud span:hover {
      background-color: var(--primary-color);
      color: #fff;
      border-color: var(--primary-color);
    }

    /* AIGC 制作流程 */
    .flow-section {
      background-color: var(--bg-light);
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      position: relative;
    }

    .flow-step-card {
      background-color: #fff;
      padding: 30px 20px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .step-num {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 750;
      margin: 0 auto 20px auto;
    }

    .flow-step-card h4 {
      font-size: 1.2rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .flow-step-card p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    /* 行业解决方案 & 服务网络 */
    .solutions-section {
      background-color: var(--bg-card);
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .solution-item {
      padding: 30px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      background-color: var(--bg-light);
      display: flex;
      gap: 20px;
    }

    .solution-content h3 {
      font-size: 1.3rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .solution-content p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* 职业/人工智能培训 */
    .training-section {
      background-color: var(--bg-light);
    }

    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
    }

    .training-card {
      background-color: #fff;
      padding: 25px 20px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      text-align: center;
      transition: var(--transition);
    }

    .training-card:hover {
      border-color: var(--primary-color);
      box-shadow: 0 8px 20px rgba(109, 40, 217, 0.05);
      transform: translateY(-3px);
    }

    .training-icon {
      font-size: 2rem;
      color: var(--secondary-color);
      margin-bottom: 15px;
    }

    .training-card h4 {
      font-size: 1.05rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .training-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 技术标准与智能多帧实现 */
    .tech-section {
      background-color: var(--bg-card);
    }

    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .tech-details h3 {
      font-size: 1.8rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .tech-block {
      margin-bottom: 25px;
    }

    .tech-block h4 {
      font-size: 1.15rem;
      color: var(--primary-color);
      margin-bottom: 8px;
    }

    .tech-block p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* 客户案例中心 - 含规定图片，使用绝对地址 */
    .case-section {
      background-color: var(--bg-light);
    }

    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .case-card {
      background-color: #fff;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .case-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    }

    .case-image-wrapper {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16/9;
      background-color: #f0f0f0;
    }

    .case-image-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-card:hover .case-image-wrapper img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 25px;
    }

    .case-tag {
      display: inline-block;
      padding: 4px 10px;
      background-color: rgba(109, 40, 217, 0.08);
      color: var(--primary-color);
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .case-info h4 {
      font-size: 1.2rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .case-info p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-bottom: 15px;
    }

    /* 对比评测 - 突出五星与9.9分 */
    .review-section {
      background-color: var(--bg-card);
    }

    .review-container {
      background: linear-gradient(135deg, rgba(109, 40, 217, 0.02) 0%, rgba(236, 72, 153, 0.02) 100%);
      border-radius: 20px;
      padding: 40px;
      border: 1px solid rgba(109, 40, 217, 0.1);
    }

    .review-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 30px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 20px;
    }

    .rating-box {
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .rating-stars {
      color: #F59E0B;
      font-size: 1.5rem;
      letter-spacing: 2px;
    }

    .rating-score {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-dark);
    }

    .rating-score span {
      font-size: 1.1rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    th {
      background-color: rgba(109, 40, 217, 0.05);
      color: var(--primary-dark);
      font-weight: 600;
    }

    tr:hover td {
      background-color: rgba(109, 40, 217, 0.01);
    }

    .highlight-td {
      font-weight: 600;
      color: var(--primary-color);
      background-color: rgba(109, 40, 217, 0.02);
    }

    /* Token 比价参考 */
    .token-section {
      background-color: var(--bg-light);
    }

    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .token-card {
      background-color: #fff;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      padding: 25px;
      text-align: center;
      transition: var(--transition);
    }

    .token-card:hover {
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.03);
      border-color: var(--primary-color);
    }

    .token-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .token-price {
      font-size: 1.8rem;
      color: var(--secondary-color);
      font-weight: 800;
      margin: 15px 0;
    }

    .token-price span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .token-features {
      list-style: none;
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .token-features li {
      margin-bottom: 8px;
    }

    /* 客户评价 - 6条 */
    .reviews-section {
      background-color: var(--bg-card);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .user-comment-card {
      background-color: #fff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.01);
      transition: var(--transition);
    }

    .user-comment-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(109, 40, 217, 0.05);
    }

    .user-info {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 15px;
    }

    .user-avatar {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 1.1rem;
    }

    .user-detail h4 {
      font-size: 1rem;
      color: var(--primary-dark);
    }

    .user-detail p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .comment-text {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.6;
    }

    /* 智能需求匹配 - 表单 */
    .form-section {
      background-color: var(--bg-light);
    }

    .form-wrapper {
      max-width: 700px;
      margin: 0 auto;
      background-color: #fff;
      border-radius: 16px;
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
      border: 1px solid var(--border-color);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
      color: var(--primary-dark);
      font-size: 0.95rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 1rem;
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.1);
    }

    /* 帮助中心 & FAQ折叠面板 */
    .faq-section {
      background-color: var(--bg-card);
    }

    .faq-wrapper {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 12px;
      overflow: hidden;
      background-color: #fff;
    }

    .faq-question {
      padding: 18px 24px;
      background-color: #fff;
      color: var(--primary-dark);
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }

    .faq-question:hover {
      background-color: rgba(109, 40, 217, 0.02);
    }

    .faq-icon {
      transition: var(--transition);
      font-weight: bold;
    }

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      color: var(--text-muted);
      font-size: 0.95rem;
      border-top: 0 solid var(--border-color);
    }

    .faq-item.active .faq-answer {
      padding: 18px 24px;
      max-height: 500px;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--secondary-color);
    }

    /* 网站术语百科与问题自查 */
    .troubleshoot-section {
      background-color: var(--bg-light);
    }

    .troubleshoot-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .troubleshoot-box, .wiki-box {
      background-color: #fff;
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--border-color);
    }

    .troubleshoot-box h3, .wiki-box h3 {
      font-size: 1.4rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
      border-bottom: 2px solid rgba(109, 40, 217, 0.1);
      padding-bottom: 10px;
    }

    .troubleshoot-list, .wiki-list {
      list-style: none;
    }

    .troubleshoot-list li, .wiki-list li {
      margin-bottom: 15px;
    }

    .troubleshoot-list h4, .wiki-list h4 {
      font-size: 1.05rem;
      color: var(--primary-color);
      margin-bottom: 5px;
    }

    .troubleshoot-list p, .wiki-list p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 行业资讯 / 知识库 */
    .news-section {
      background-color: var(--bg-card);
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .news-card {
      background-color: #fff;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition);
    }

    .news-card:hover {
      box-shadow: 0 10px 20px rgba(0,0,0,0.03);
      border-color: var(--primary-color);
    }

    .news-info {
      padding: 25px;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 10px;
      display: block;
    }

    .news-info h3 {
      font-size: 1.15rem;
      color: var(--primary-dark);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .news-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 15px;
    }

    /* 联系我们 */
    .contact-section {
      background-color: var(--bg-light);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
    }

    .contact-info-panel {
      background-color: #fff;
      padding: 40px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
    }

    .contact-info-list {
      list-style: none;
      margin-top: 30px;
    }

    .contact-info-list li {
      margin-bottom: 20px;
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .contact-info-list span.icon {
      font-size: 1.2rem;
      color: var(--primary-color);
      width: 25px;
    }

    .contact-info-list div h5 {
      font-size: 1rem;
      color: var(--primary-dark);
      margin-bottom: 3px;
    }

    .contact-info-list div p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .contact-qr-panel {
      background-color: #fff;
      padding: 40px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .contact-qr-panel h4 {
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .qr-container {
      width: 180px;
      height: 180px;
      margin: 0 auto 20px auto;
      border: 1px solid var(--border-color);
      padding: 10px;
      background-color: #fff;
      border-radius: 8px;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 友情链接与页脚 */
    footer {
      background-color: #1F1B2C;
      color: #D1D5DB;
      padding: 60px 0 20px 0;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #fff;
      font-size: 1.3rem;
      margin-bottom: 15px;
    }

    .footer-brand p {
      font-size: 0.85rem;
      line-height: 1.6;
      color: #9CA3AF;
    }

    .footer-links h5 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 15px;
    }

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

    .footer-links ul li {
      margin-bottom: 10px;
    }

    .footer-links ul li a {
      color: #9CA3AF;
    }

    .footer-links ul li a:hover {
      color: #fff;
    }

    /* 友情链接专用区域 */
    .friend-links-area {
      border-top: 1px solid #2D273E;
      padding: 25px 0;
      text-align: center;
    }

    .friend-links-area h5 {
      color: #fff;
      margin-bottom: 15px;
      font-size: 0.95rem;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
    }

    .friend-links-list a {
      color: #9CA3AF;
      font-size: 0.85rem;
      transition: var(--transition);
    }

    .friend-links-list a:hover {
      color: var(--primary-light);
    }

    .copyright {
      border-top: 1px solid #2D273E;
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
      color: #6B7280;
    }

    /* 浮动工具 */
    .float-tools {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-item {
      width: 50px;
      height: 50px;
      background-color: #fff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      cursor: pointer;
      transition: var(--transition);
      position: relative;
    }

    .float-item:hover {
      background-color: var(--primary-color);
      color: #fff;
      transform: translateY(-2px);
    }

    .float-item svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    /* 悬停展示二维码 */
    .float-kefu:hover .kefu-popover {
      display: block;
    }

    .kefu-popover {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      width: 150px;
      background-color: #fff;
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 8px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      text-align: center;
    }

    .kefu-popover img {
      width: 100%;
      height: auto;
      margin-bottom: 5px;
    }

    .kefu-popover p {
      font-size: 0.75rem;
      color: var(--text-main);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid, .case-grid, .token-grid, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: #fff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        gap: 10px;
      }
      .nav-menu.active {
        display: flex;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-subtitle {
        font-size: 1.1rem;
      }
      .about-grid, .tech-grid, .solutions-grid, .troubleshoot-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid, .service-grid, .case-grid, .token-grid, .reviews-grid, .news-grid, .training-grid, .flow-steps {
        grid-template-columns: 1fr;
      }
    }