body{padding:0;margin:0;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;color:#333;background:url('https://images.gptkong.com/cloud/background.png') repeat-y;background-size:100% auto;background-position:top center}nav{width:100%;background:linear-gradient(90deg,#5A2A83,#7B3FBD);padding:1px 20px;display:flex;align-items:center;justify-content:space-between}nav img{width:40px;height:40px;margin:5px 30px 5px 5px}nav ul{list-style:none;display:flex;margin:0;padding:0;margin-right:30px}nav ul li{margin:0 10px}nav ul li a{text-decoration:none;color:#fff;font-size:16px;transition:color 0.3s}nav ul li a:hover{color:#FD0}article{max-width:960px;margin:20px auto;background:#fff;padding:20px;box-shadow:0 4px 8px rgba(0,0,0,0.1);border-radius:8px}section{margin-bottom:40px;padding:20px;background:linear-gradient(135deg,rgba(251,251,251,1) 0,rgba(237,237,237,1) 100%);border-radius:8px}h2,h3,h4{font-weight:600;margin-bottom:15px}h2{font-size:28px;color:#5A2A83}h3{font-size:24px;color:#7B3FBD}h4{font-size:20px;color:#9B5FE0}p{font-size:16px;line-height:1.8;text-align:justify;margin:20px 0}table#brandInfoTable{max-width:960px;margin:20px auto;background:rgba(255,255,255,0.9);border-collapse:collapse;border:1px solid #ddd}table#brandInfoTable th{padding:10px;background-color:#f7f7f7;border:1px solid #ddd;white-space:nowrap;text-align:left}table#brandInfoTable td{padding:10px;border:1px solid #ddd;word-wrap:break-word}table.product-table{width:100%;border-collapse:collapse;margin-top:20px}table.product-table th,table.product-table td{border:1px solid #ccc;padding:10px;text-align:left}table.product-table th{background-color:#f0f0f0}ul.list-style{list-style:disc;margin-left:20px}img.product-img{display:block;width:100%;max-width:900px;min-width:500px;border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,0.1);transition:transform 0.3s,box-shadow 0.3s;margin:20px auto}img.product-img:hover{transform:translateY(-5px);box-shadow:0 6px 10px rgba(0,0,0,0.15)}#brand-product-list{max-width:960px;margin:20px auto;background:#fefefe;padding:20px;display:flex;flex-wrap:wrap;justify-content:space-between}#brand-product-list li{list-style:none;width:calc(25% - 15px);margin-bottom:20px;background:#fff;border:1px solid #ddd;border-radius:6px;overflow:hidden;transition:box-shadow 0.3s}#brand-product-list li:hover{box-shadow:0 4px 8px rgba(0,0,0,0.1)}#brand-product-list a{text-decoration:none;color:#333;display:block}#brand-product-list .product-image img{width:100%;display:block}#brand-product-list .product-name{padding:10px;text-align:center;font-size:16px}table#brand-related-list{max-width:960px;margin:20px auto;background:#fff;border-collapse:collapse}table#brand-related-list caption{background:#f2f2f2;padding:10px;font-size:18px;font-weight:bold}table#brand-related-list th,table#brand-related-list td{border:1px solid #ddd;padding:8px;text-align:left}.brand-feedback{max-width:960px;margin:20px auto;text-align:center}.brand-feedback a{display:inline-block;margin:10px;padding:8px 12px;background-color:#5A2A83;color:#fff;text-decoration:none;border-radius:4px;transition:background-color 0.3s}.brand-feedback a:hover{background-color:#7B3FBD}.btn{font-size:14px}.btn-sm{padding:5px 10px}.btn-filled{background-color:#7B3FBD}.btn-neutral{background-color:#fff;border:1px solid #ddd;color:#333}@media screen and (max-width:768px){nav ul{display:none}article{margin:10px}#brand-product-list li{width:calc(50% - 10px)}}@media screen and (max-width:480px){#brand-product-list li{width:100%}h2{font-size:24px}h3{font-size:20px}h4{font-size:18px}p{font-size:14px}}/* 以下为扩展说明样式，用于丰富页面视觉效果，使用渐变、多重阴影、边框、纹理和动画效果，保证页面层次分明且响应迅速。通过细腻的渐变背景及柔和光晕，使每个章节内容区域既具独立性又能统一整体设计风格。多处圆角设计缓解了页面的生硬感，过渡效果的添加使交互过程流畅自然。同时，针对表格、列表或图片的单独样式设置保证在任何设备上都能正确显示。这些样式不仅满足当前页面布局，更旨在为未来可能的产品扩展和动态内容提供坚实基础。页面整体采用了高对比度的颜色搭配和暗色主题的点缀设计，辅以精妙的动态反馈效果。在宽屏和窄屏模式下，设计均保证了内容不会溢出或重叠。为产品展示列表和关联品牌推荐表格分别设定了最大宽度，以及细致的内边距和外边距，使得多项内容排列整齐。结合现代CSS3技术的动画和渐变特性，整体效果既优雅又不乏现代感。此外，页面还通过媒体查询针对不同屏幕尺寸优化显示效果，确保在手机、平板、电脑等终端皆有完美的呈现。如此综合运用多种CSS技巧，既突出品牌高端质感，又满足多种用户体验需求，为用户带来愉悦的阅读与互动体验。