<style>
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #f5f7fa;
            min-height: 100vh;
            padding: 0px;
        }
        .container {
             width: 100%;
            margin: 0;
            background: white;
            border-radius: 0;
            box-shadow: none;
            overflow: hidden;
        }
        header {
            background: #1976d2;
            color: white;
            text-align: center;
            padding: 30px 20px;
        }
        header h1 { font-size: 2em; margin-bottom: 8px; }
        header p { font-size: 1.1em; opacity: 0.9; }
        main { padding: 30px; }
        .product-info {
            background: #f8f9fa;
            border-left: 4px solid #1976d2;
            padding: 20px;
            margin-bottom: 25px;
            border-radius: 6px;
        }
        .product-info h2 {
            color: #1976d2;
            margin-bottom: 15px;
            font-size: 1.5em;
        }
        .specs {
            background: #e8f5e8;
            padding: 15px;
            border-radius: 6px;
            margin: 20px 0;
        }
        .specs strong { color: #2e7d32; }
        img {
            display: block;
            max-width: 100%;
            height: auto;
            border-radius: 6px;
            margin: 20px auto;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: -10px;
            margin-bottom: 20px;
        }
        
        footer {
            background: #2c3e50;
            color: white;
            text-align: center;
            padding: 25px;
            font-size: 1.1em;
            font-weight: 500;
        }
       
        /* 产品多列布局 */
        .products-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        justify-content: flex-start;
        padding: 20px 0;
        }

        .product-card {
        width: 220px;
        text-align: center;
        }
        .feature-row {
            display: flex;
            align-items: flex-start;
            gap: 30px;
            margin: 20px 0;
        }
        .feature-text {
            flex: 1;
            min-width: 0;
        }
        .feature-text h3 {
            color: #1976d2;
            margin-bottom: 15px;
            font-size: 1.3em;
        }
        .img-right {
            flex-shrink: 0;
            max-width: 300px;
            max-height: 300px;
            width: auto;
            margin: 0 100px 0 0;
            align-self: center;
            box-shadow: none;
            border-radius: 0;
        }
    </style>