* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
        }
        
        body {
            background: url('//ueeshop.ly200-cdn.com/u_file/UPAZ/UPAZ285/2506/24/photo/e1d3e13974.png') no-repeat center center fixed;
            background-size: cover;
            position: relative;
            overflow-x: hidden;
            min-height: 100vh;
            padding: 20px;
        }
        
        /* 分类区域样式 */
        .categories-container {
            max-width: 1200px;
            margin: 50px auto;
            padding: 20px;
            position: relative;
            z-index: 1;
        }
        
        .categories-title {
            text-align: center;
            color: white;
            font-size: 2.5rem;
            margin-bottom: 30px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .category-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.1);
            position: relative;
            height: 200px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            color: white;
        }
        
        .category-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.25);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
        }
        
        .category-icon {
            width: 150px;
            height: 120px;
            margin-bottom: 15px;
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }
        
        .category-name {
            font-size: 1.5rem;
            font-weight: bold;
            text-align: center;
        }
        
        .category-count {
            position: absolute;
            bottom: 15px;
            right: 15px;
            background: rgba(255,255,255,0);
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        
        /* 动态元素样式 */
        .dynamic-element {
            position: absolute;
            background-size: contain;
            background-repeat: no-repeat;
            z-index: -1;
            opacity: 0.7;
            will-change: transform, opacity;
        }
        
        .float-element {
            animation: float 15s infinite linear;
        }
        
        .bubble-element {
            animation: bubble 8s infinite ease-in-out;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }
        
        .spin-element {
            animation: spin 20s infinite linear;
        }
        
        .pulse-element {
            animation: pulse 3s infinite ease-in-out;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 70%);
        }
        
        .sway-element {
            animation: sway 12s infinite ease-in-out alternate;
        }
        
        /* 动画效果 */
        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(5deg); }
            100% { transform: translateY(0) rotate(0deg); }
        }
        
        @keyframes bubble {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.2); }
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.7; }
            50% { transform: scale(1.1); opacity: 1; }
        }
        
        @keyframes sway {
            0% { transform: translateX(-10px); }
            100% { transform: translateX(10px); }
        }