:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --border-radius: 8px;
            --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        /* 头部样式 - 使用参考样式 */
        header {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .header-text {
            flex: 1;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            font-weight: 300;
        }
        
        .subtitle {
            font-size: 1.2rem;
            font-weight: 300;
            opacity: 0.9;
        }
        
        /* 搜索框样式 */
        .search-container {
            position: relative;
            min-width: 250px;
        }
        
        .search-box {
            width: 100%;
            padding: 0.7rem 1rem 0.7rem 2.5rem;
            border: none;
            border-radius: 25px;
            background-color: rgba(255, 255, 255, 0.2);
            color: white;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s ease;
        }
        
        .search-box::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        
        .search-box:focus {
            background-color: rgba(255, 255, 255, 0.3);
            box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
        }
        
        .search-icon {
            position: absolute;
            left: 0.8rem;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.8);
        }
        
        /* 导航样式 - 使用参考样式 */
        nav {
            background-color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .categories {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        
        .category-btn {
            padding: 0.5rem 1.5rem;
            border: none;
            background-color: #f0f0f0;
            border-radius: 25px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }
        
        .category-btn:hover, .category-btn.active {
            background-color: #6a11cb;
            color: white;
        }
        
        /* 主内容区样式 */
        main {
            padding: 2rem 0;
            flex: 1;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .section-title {
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-color);
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        
        /* 图片网格样式 - 改为3-4列布局 */
        .image-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        
        .image-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            cursor: pointer;
        }
        
        .image-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        }
        
        .image-container {
            position: relative;
            height: 200px;
            background: linear-gradient(45deg, #f1f2f6, #dfe4ea);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #7f8c8d;
            overflow: hidden;
        }
        
        .image-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            -webkit-user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
            pointer-events: none;
        }
        
        .image-card:hover .image-container img {
            transform: scale(1.05);
        }
        /* 水印 */
        .image-watermark {
            position: absolute;
            top: 10px;
            left: 10px;
            opacity: 0.4;
            font-size: 2rem;
            font-weight: bold;
            color: #FEFEFE;
            pointer-events: none;
        }
        
        .image-content {
            padding: 1rem;
        }
        
        .image-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .image-desc {
            font-size: 0.9rem;
            color: #7f8c8d;
            margin-bottom: 0.8rem;
            display: -webkit-box;
            -webkit-line-clamp: 1; /* 修改为只显示一行 */
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        
        .image-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
        }
        
        .tag {
            background-color: var(--light-color);
            color: var(--primary-color);
            padding: 3px 8px;
            border-radius: 20px;
            font-size: 0.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .tag:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        
        /* 加载更多按钮样式 */
        .load-more-container {
            text-align: center;
            margin: 3rem 0; /* 增加上下间距 */
            padding: 1rem 0;
        }
        
        .load-more-btn {
            padding: 12px 30px;
            background-color: var(--secondary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        
        .load-more-btn:hover {
            background-color: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
        }
        
        .load-more-btn:disabled {
            background-color: #bdc3c7;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        /* 模态框样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 1000;
            overflow-y: auto;
        }
        
        .modal-content {
            background-color: white;
            margin: 2% auto;
            width: 90%;
            max-width: 1080px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            background-color: var(--primary-color);
            color: white;
        }
        
        .modal-title {
            font-size: 1.3rem;
            font-weight: 600;
        }
        
        .close-btn {
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .close-btn:hover {
            color: var(--accent-color);
        }
        
        .modal-body {
            padding: 1.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        
        .modal-image {
            background: #f1f2f6;
            height: 200px;
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }
        
        .modal-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            -webkit-user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
            pointer-events: none;
        }
        
        /* 图片保护层 */
        .image-protection {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: transparent;
            z-index: 1;
        }
        
        .modal-info h3 {
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .modal-info p {
            margin-bottom: 1rem;
            color: #555;
        }
        
        .modal-iframe {
            grid-column: 1 / -1;
            height: 540px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
        }
        
        .modal-iframe iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        /* 底部样式 */
        footer {
            background-color: #333;
            color: #ddd;
            padding: 2rem 0;
            text-align: center;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 1rem 0;
        }
        
        .footer-links a {
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #999;
        }
        
        /* 二维码区域样式 */
        .qr-codes {
            display: flex;
            gap: 1.5rem;
            margin-top: 1rem;
            justify-content: center;
        }
        
        .qr-code {
            text-align: center;
        }
        
        .qr-code img {
            width: 120px;
            height: 120px;
            background: white;
            border-radius: var(--border-radius);
            padding: 10px;
        }
        
        .qr-code p {
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .image-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 1rem;
            }
            
            .header-text {
                text-align: center;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .search-container {
                min-width: 100%;
            }
            
            .categories {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            
            .category-btn {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
            
            .image-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .modal-body {
                grid-template-columns: 1fr;
            }
            
            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
            
            .qr-codes {
                flex-direction: column;
                align-items: center;
            }
        }
        
        @media (max-width: 480px) {
            .image-grid {
                grid-template-columns: 1fr;
            }
            
            .modal-iframe {
                height: 300px;
            }
        }
        
        /* 加载动画 */
        .loader {
            display: inline-block;
            width: 30px;
            height: 30px;
            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); }
        }
        
        .loading {
            display: none;
            text-align: center;
            padding: 2rem;
        }
        
        /* 动画 */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        @keyframes slideIn {
            from { transform: translateY(-50px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }
        
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }