body{padding:0;margin:0;background:url('https://images.gptkong.com/cloud/background.png') repeat-y;background-size:100% auto;background-position:top center;font-family:'Helvetica Neue',Arial,sans-serif;color:#333;line-height:1.6}nav{display:flex;align-items:center;justify-content:space-between;padding:1px 20px;background:linear-gradient(90deg,#fff8f0,#fffdf6);box-shadow:0 2px 4px rgba(0,0,0,0.1);position:sticky;top:0;z-index:1000}nav img{width:40px;height:40px;margin:5px 30px 5px 5px;border-radius:50%}nav ul{display:flex;list-style:none;margin-right:30px;padding:0}nav ul li{margin:0 15px}nav ul li a{text-decoration:none;color:#555;font-size:16px;transition:color 0.3s ease}nav ul li a:hover{color:#ff8c00}.chapter-nav{max-width:960px;margin:20px auto;padding:0 20px}.chapter-nav ul{display:flex;list-style:none;justify-content:space-around;padding:0}.chapter-nav ul li a{text-decoration:none;color:#444;font-weight:500;transition:color 0.3s ease}.chapter-nav ul li a:hover{color:#ff8c00}#brandInfoTable{max-width:960px;margin:20px auto 0;background-color:rgba(255,248,240,1);border-collapse:collapse;border:1px solid #ddd}#brandInfoTable th{padding:12px;background:linear-gradient(45deg,#ffe0b3,#ffd699);border:1px solid #ddd;white-space:nowrap;text-align:left}#brandInfoTable td{padding:12px;border:1px solid #ddd;white-space:normal;word-wrap:break-word}article{max-width:960px;margin:20px auto;background-color:#fff;padding:20px;border-radius:8px}article section{margin-bottom:20px;padding:20px;border-radius:8px;background:linear-gradient(135deg,#fff8f0,#fffdfc);box-shadow:0 2px 5px rgba(0,0,0,0.1);transition:transform 0.3s ease,box-shadow 0.3s ease}article section:hover{transform:translateY(-2px);box-shadow:0 4px 10px rgba(0,0,0,0.15)}.article-image{display:block;margin:20px auto;width:80%;max-width:900px;min-width:500px;border-radius:10px;box-shadow:0 4px 8px rgba(0,0,0,0.1);transition:box-shadow 0.3s ease,transform 0.3s ease}.article-image:hover{box-shadow:0 6px 12px rgba(0,0,0,0.2);transform:scale(1.02)}#brand-product-list{max-width:960px;margin:20px auto;background-color:#f9f9f9;padding:20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:20px;list-style:none}#brand-product-list li{background:linear-gradient(135deg,#fff8f0,#fffdf6);padding:10px;border-radius:8px;text-align:center;box-shadow:0 2px 5px rgba(0,0,0,0.1);transition:transform 0.3s ease}#brand-product-list li:hover{transform:translateY(-3px)}#brand-product-list a{text-decoration:none;color:#333;display:block}#brand-product-list .product-image{margin-bottom:10px}#brand-product-list .product-image img{width:100%;border-radius:8px;transition:opacity 0.3s ease}#brand-product-list .product-image img:hover{opacity:0.9}#brand-related-list{max-width:960px;margin:20px auto;background-color:#f1f8f7;border-collapse:collapse}#brand-related-list caption{padding:10px;font-size:18px;font-weight:bold;color:#555}#brand-related-list th,#brand-related-list td{border:1px solid #ddd;padding:12px;text-align:left}.brand-feedback{max-width:960px;margin:20px auto;padding:10px 20px;background-color:#fff8f0;text-align:center;border-radius:8px;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.brand-feedback .btn{display:inline-flex;align-items:center;gap:5px;padding:8px 12px;margin:5px;background:linear-gradient(45deg,#fed,#ffd699);border:none;border-radius:4px;text-decoration:none;font-size:14px;color:#333;transition:background 0.3s ease,transform 0.3s ease}.brand-feedback .btn:hover{background:linear-gradient(45deg,#ffd699,#fed);transform:scale(1.05)}.brand-feedback img{vertical-align:middle}.optimized-table{width:100%;border-collapse:collapse;margin-top:20px}.optimized-table th,.optimized-table td{border:1px solid #ddd;padding:12px}.optimized-table th{background-color:#f2f2f2;text-align:left;white-space:nowrap}.optimized-table td{white-space:normal;word-wrap:break-word}@media (max-width:768px){nav ul{display:none}article,#brandInfoTable,#brand-product-list,#brand-related-list,.brand-feedback,.chapter-nav{padding:10px;margin:10px auto}.article-image{width:95%;min-width:unset}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}body *{animation:fadeIn 1s ease-in-out}