* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
      color: #333;
      background: #f5f5f5;
      line-height: 1.6;
    }
    
    a {
      text-decoration: none;
      color: inherit;
    }
    
    /* 容器 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* 导航栏 */
    .navbar {
      background: #fff;
      box-shadow: 0 2px 8px rgba(0,0,0,0.08);
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
    }
    
    .navbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
    }
    
    .logo {
      font-size: 24px;
      font-weight: 700;
      color: #333;
    }
    
    .nav-links {
      display: flex;
      gap: 30px;
    }
    
    .nav-link {
      color: #666;
      font-size: 15px;
      font-weight: 500;
      transition: color 0.3s;
    }
    
    .nav-link:hover {
      color: #007bff;
    }
    
    .nav-actions {
      display: flex;
      gap: 12px;
    }
    
    /* 按钮 */
    .btn {
      display: inline-block;
      padding: 10px 24px;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 500;
      border: none;
      cursor: pointer;
      transition: all 0.3s;
    }
    
    .btn-primary {
      background: #007bff;
      color: #fff;
    }
    
    .btn-primary:hover {
      background: #0069d9;
    }
    
    .btn-outline {
      background: transparent;
      color: #007bff;
      border: 1px solid #007bff;
    }
    
    .btn-outline:hover {
      background: #007bff;
      color: #fff;
    }
    
    /* 主视觉区域 */
    .hero {
      background: linear-gradient(135deg, #007bff 0%, #0069d9 100%);
      color: #fff;
      padding: 140px 0 100px;
      margin-top: 70px;
      position: relative;
      overflow: hidden;
    }
    
    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTI4MCIgaGVpZ2h0PSI2NDAiIHZpZXdCb3g9IjAgMCAxMjgwIDY0MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxwYXRoIGQ9Ik0wIDBoMTI4MHY2NDBoLTEyODB6IiBmaWxsPSIjZmZmZmZmMTAiLz48cGF0aCBkPSJNMTI4MCAxMjhIMFY3NjhoMTI4MHYtNjQweiIgZmlsbD0iI2ZmZmZmZjEwIi8+PC9nPjwvc3ZnPg==');
      background-size: cover;
    }
    
    .hero-content {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
    }
    
    .hero-text {
      flex: 1;
      min-width: 300px;
      padding-right: 40px;
    }
    
    .hero-title {
      font-size: 48px;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 20px;
    }
    
    .hero-desc {
      font-size: 18px;
      opacity: 0.9;
      margin-bottom: 30px;
      line-height: 1.6;
    }
    
    .hero-buttons {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
    }
    
    .btn-white {
      background: #fff;
      color: #007bff;
      font-weight: 600;
    }
    
    .btn-white:hover {
      background: #f8f9fa;
    }
    
    .hero-image {
      flex: 1;
      min-width: 300px;
      text-align: center;
    }
    
    .hero-image img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    }
    
    /* 特点区域 */
    .features {
      padding: 80px 0;
      background: #fff;
    }
    
    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }
    
    .section-title {
      font-size: 36px;
      font-weight: 700;
      color: #333;
      margin-bottom: 15px;
    }
    
    .section-subtitle {
      font-size: 16px;
      color: #666;
      max-width: 600px;
      margin: 0 auto;
    }
    
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    
    .feature-card {
      background: #f8f9fa;
      border-radius: 8px;
      padding: 30px;
      text-align: center;
      transition: all 0.3s;
    }
    
    .feature-card:hover {
      background: #fff;
      box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    }
    
    .feature-icon {
      width: 70px;
      height: 70px;
      background: #e7f3ff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      font-size: 28px;
      color: #007bff;
    }
    
    .feature-title {
      font-size: 18px;
      font-weight: 600;
      color: #333;
      margin-bottom: 12px;
    }
    
    .feature-desc {
      font-size: 14px;
      color: #666;
      line-height: 1.6;
    }
    
    /* 服务区域 */
    .services {
      padding: 80px 0;
      background: #f8f9fa;
    }
    
    .services-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
    }
    
    .service-card {
      background: #fff;
      border-radius: 8px;
      padding: 40px;
      display: flex;
      gap: 20px;
      transition: all 0.3s;
    }
    
    .service-card:hover {
      box-shadow: 0 10px 30px rgba(0,0,0,0.08);
      transform: translateY(-5px);
    }
    
    .service-icon {
      width: 60px;
      height: 60px;
      background: #007bff;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 24px;
      flex-shrink: 0;
    }
    
    .service-content h3 {
      font-size: 20px;
      font-weight: 600;
      color: #333;
      margin-bottom: 10px;
    }
    
    .service-content p {
      font-size: 14px;
      color: #666;
      line-height: 1.6;
    }
    
    /* 数据统计 */
    .stats {
      padding: 60px 0;
      background: #007bff;
      color: #fff;
    }
    
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
    }
    
    .stat-item {
      text-align: center;
    }
    
    .stat-number {
      font-size: 42px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    
    .stat-label {
      font-size: 14px;
      opacity: 0.9;
    }
    
    /* 客户评价 */
    .testimonials {
      padding: 80px 0;
      background: #fff;
    }
    
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    
    .testimonial-card {
      background: #f8f9fa;
      border-radius: 8px;
      padding: 30px;
      position: relative;
    }
    
    .testimonial-quote {
      font-size: 15px;
      color: #666;
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }
    
    .testimonial-quote::before {
      content: '"';
      font-size: 40px;
      color: #007bff;
      position: absolute;
      top: 10px;
      left: 20px;
      opacity: 0.2;
    }
    
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    
    .author-avatar {
      width: 48px;
      height: 48px;
      background: #007bff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 600;
      font-size: 18px;
    }
    
    .author-info h4 {
      font-size: 16px;
      font-weight: 600;
      color: #333;
      margin-bottom: 2px;
    }
    
    .author-info p {
      font-size: 14px;
      color: #666;
      margin: 0;
    }
    
    /* CTA区域 */
    .cta {
      padding: 80px 0;
      background: #f8f9fa;
      text-align: center;
    }
    
    .cta-title {
      font-size: 36px;
      font-weight: 700;
      color: #333;
      margin-bottom: 15px;
    }
    
    .cta-desc {
      font-size: 16px;
      color: #666;
      margin-bottom: 30px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }
    
    /* 页脚 */
    .footer {
      background: #333;
      color: #999;
      padding: 60px 0 30px;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }
    
    .footer-brand {
      min-width: 250px;
    }
    
    .footer-logo {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    
    .footer-desc {
      font-size: 14px;
      line-height: 1.6;
      margin-bottom: 20px;
    }
    
    .footer-links h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }
    
    .footer-links ul {
      list-style: none;
    }
    
    .footer-links li {
      margin-bottom: 10px;
    }
    
    .footer-links a {
      color: #999;
      font-size: 14px;
      transition: color 0.3s;
    }
    
    .footer-links a:hover {
      color: #007bff;
    }
    
    .footer-bottom {
      border-top: 1px solid #444;
      padding-top: 20px;
      text-align: center;
      font-size: 14px;
    }
    
    /* 登录区域 */
    .login-section {
      padding: 60px 0;
      background: #fff;
    }
    
    .login-box {
      max-width: 400px;
      margin: 0 auto;
      padding: 40px;
      background: #f8f9fa;
      border-radius: 8px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    }
    
    .login-title {
      font-size: 24px;
      font-weight: 600;
      color: #333;
      margin-bottom: 30px;
      text-align: center;
    }
    
    .login-code {
      text-align: center;
    }
    
    .main-title {
      display: block;
      font-size: 18px;
      font-weight: 600;
      color: #333;
      margin-bottom: 20px;
    }
    
    .input {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-size: 14px;
      margin-bottom: 15px;
      transition: border-color 0.3s;
    }
    
    .input:focus {
      outline: none;
      border-color: #007bff;
    }
    
    .errorBox {
      color: #dc3545;
      font-size: 14px;
      margin-bottom: 15px;
      display: none;
    }
    
    .p3 {
      margin-bottom: 15px;
    }
    
    .wx-img {
      margin-bottom: 20px;
    }
    
    .wx-img img {
      max-width: 200px;
      height: auto;
    }
    
    .wx-title {
      display: block;
      color: #666;
      font-size: 14px;
    }
    
    .wx-title p {
      margin: 5px 0;
    }
    
    /* 响应式设计 */
    @media (max-width: 992px) {
      .features-grid,
      .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      
      .services-grid {
        grid-template-columns: 1fr;
      }
      
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      
      .hero-content {
        flex-direction: column;
      }
      
      .hero-text {
        padding-right: 0;
        text-align: center;
        margin-bottom: 40px;
      }
      
      .hero-title {
        font-size: 36px;
      }
      
      .hero-buttons {
        justify-content: center;
      }
      
      .section-title {
        font-size: 28px;
      }
      
      .features-grid,
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      
      .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      
      .footer-grid {
        grid-template-columns: 1fr;
      }
      
      .login-box {
        padding: 30px 20px;
        margin: 0 20px;
      }
    }