h1 {
            text-align: center;
            color: #2c3e50;
            margin-bottom: 10px;
            font-size: 2.5rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        
        .subtitle {
            text-align: center;
            color: #7f8c8d;
            margin-bottom: 40px;
            font-size: 1.1rem;
        }
        
        .image-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .image-item {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
            height: 200px;
            position: relative;
        }
        
        .image-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .image-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .image-item:hover img {
            transform: scale(1.05);
        }
        
        .image-item::after {
            content: '点击查看大图';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            text-align: center;
            padding: 8px;
            font-size: 0.8rem;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .image-item:hover::after {
            opacity: 1;
        }
        
        /* 图片预览模态框 */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        
        .modal.active {
            opacity: 1;
            visibility: visible;
        }
        
        .modal-content {
            max-width: 90%;
            max-height: 90%;
            position: relative;
            transform: scale(0.8);
            transition: transform 0.3s ease;
        }
        
        .modal.active .modal-content {
			background: initial;
            transform: scale(1);
        }
        
        .modal img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.5);
            transition: transform 0.1s ease;
        }
        
        .close-btn {
            position: absolute;
            top: -40px;
            right: 0;
            background: none;
            border: none;
            color: white;
            font-size: 2rem;
            cursor: pointer;
            transition: color 0.3s ease;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        
        .close-btn:hover {
            color: #3498db;
            background: rgba(255, 255, 255, 0.1);
        }
        
        .zoom-info {
            position: absolute;
            bottom: -50px;
            left: 0;
            width: 100%;
            text-align: center;
            color: white;
            font-size: 0.9rem;
            background: rgba(0, 0, 0, 0.5);
            padding: 8px;
            border-radius: 4px;
        }
        
        .zoom-controls {
            position: absolute;
            bottom: 20px;
            right: 20px;
            display: flex;
            gap: 10px;
        }
        
        .zoom-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s ease;
        }
        
        .zoom-btn:hover {
            background: rgba(0, 0, 0, 0.7);
        }
        
        .reset-btn {
            position: absolute;
            bottom: 20px;
            left: 20px;
            padding: 8px 16px;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        
        .reset-btn:hover {
            background: rgba(0, 0, 0, 0.7);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .image-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .zoom-controls, .reset-btn {
                display: none;
            }
        }
        
        @media (max-width: 480px) {
            .image-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            .subtitle {
                font-size: 1rem;
            }
        }
        
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255,255,255,.3);
            border-radius: 50%;
            border-top-color: #fff;
            animation: spin 1s ease-in-out infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }