@layer utilities {
      .content-auto {
        content-visibility: auto;
      }
      .text-shadow {
        text-shadow: 0 2px 4px rgba(0,0,0,0.1);
      }
      .text-shadow-lg {
        text-shadow: 0 4px 8px rgba(0,0,0,0.12), 0 2px 4px rgba(0,0,0,0.08);
      }
      .gradient-overlay {
        background: linear-gradient(180deg, rgba(22,93,255,0.9), rgba(22,93,255,0.7));
      }
      .card-hover {
        transition: all 0.3s ease;
      }
      .card-hover:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      }
      .backdrop-blur {
        backdrop-filter: blur(8px);
      }
    }

  
        /* 页脚样式 */
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0;
        }
        
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            padding: 0 1.5rem;
        }
        
        .footer-section h3 {
            font-size: 1.2rem;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        
        .footer-section h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: #3498db;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #3498db;
        }
        
        .contact-info {
            margin-top: 1rem;
        }
        
        .contact-info p {
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
        }
        
        .contact-info i {
            margin-right: 0.8rem;
            color: #3498db;
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.2rem;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: #34495e;
            border-radius: 50%;
            color: #ecf0f1;
            transition: background-color 0.3s;
        }
        
        .social-links a:hover {
            background-color: #3498db;
        }
        
        .newsletter-form {
            margin-top: 1.2rem;
        }
        
        .newsletter-form input {
            width: 100%;
            padding: 0.8rem;
            border: none;
            border-radius: 4px;
            margin-bottom: 0.8rem;
        }
        
        .newsletter-form button {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .newsletter-form button:hover {
            background-color: #2980b9;
        }
        
        .copyright {
            text-align: center;
            padding: 1.5rem 0;
            border-top: 1px solid #34495e;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        
  
        @media (max-width: 768px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
            
            .footer-section {
                margin-bottom: 1.5rem;
            }
        }
         
        /* 全局阴影遮罩层 */
        .shadow-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(3px);
            z-index: 1000;
        }
        
        /* 二维码弹窗 */
        .qrcode-modal {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 280px;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
            z-index: 1001;
            text-align: center;
        }
        
        /* 关闭按钮 */
        .close-btn {
            position: absolute;
            top: 10px;
            right: 15px;
            font-size: 24px;
            cursor: pointer;
            color: #999;
        }
        
        /* 触发链接样式 */
        .contact-link {
            display: inline-block;
           
        }
        
        .contact-link:hover {
            background: #2980b9;
        }

        /* 基础动画定义 */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        @keyframes scaleIn {
            from { transform: scale(0.8); opacity: 0; }
            to { transform: scale(1); opacity: 1; }
        }
        
        .animate-fade-in {
            animation: fadeIn 0.3s ease-out forwards;
        }
        
        .animate-scale-in {
            animation: scaleIn 0.3s ease-out forwards;
        }