body{margin:0;padding:0;background:url('https://images.gptkong.com/cloud/background.png') repeat-y;background-size:100% auto;background-position:top center;font-family:'Times New Roman',Merriweather,serif;color:#707070;line-height:1.6}a{color:#0A3D62;text-decoration:none;transition:color 0.3s ease}a:hover{color:#A7C7E7}img{max-width:100%;height:auto;display:block}nav{width:100%;background:linear-gradient(90deg,#0A3D62,#707070);padding:1px 20px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 2px 4px rgba(0,0,0,0.2);position:fixed;top:0;z-index:1000}nav img.logo{width:40px;height:40px;margin:5px 30px 5px 5px}nav ul{list-style:none;margin:0;padding:0;display:flex;margin-right:30px}nav ul li{margin:0 10px}nav ul li a{font-family:Helvetica,Roboto,sans-serif;font-size:16px;color:#FFF;font-weight:bold}@media (max-width:768px){nav ul{display:none}}article{margin:100px auto 40px;max-width:960px;padding:20px;background-color:#FFF;box-shadow:0 2px 8px rgba(0,0,0,0.1);border-radius:8px}section{margin-bottom:40px;padding:20px;background:linear-gradient(135deg,rgba(167,199,231,0.2),rgba(112,112,112,0.1));border:1px solid #e0e0e0;border-radius:6px}section h2{font-family:Helvetica,Roboto,sans-serif;font-size:20px;color:#0A3D62;margin-bottom:10px}section p{font-family:'Times New Roman',Merriweather,serif;font-size:16px;color:#707070;margin-bottom:16px}ol.service-list{margin-left:20px}ol.service-list li{margin-bottom:8px}#brandInfoTable{max-width:960px;margin:20px auto;background-color:rgba(255,255,255,0.95);border-collapse:collapse;box-shadow:0 1px 4px rgba(0,0,0,0.2)}#brandInfoTable th,#brandInfoTable td{border:1px solid #ccc;padding:10px}#brandInfoTable th{white-space:nowrap;text-align:left;background:linear-gradient(90deg,#0A3D62,#A7C7E7);color:#fff}#brandInfoTable td{white-space:normal;word-wrap:break-word}.publication-table{width:100%;margin:20px 0;border-collapse:collapse;background-color:rgba(255,255,255,0.9)}.publication-table th,.publication-table td{border:1px solid #ddd;padding:8px}.publication-table th{background:#0A3D62;color:#fff;white-space:nowrap;text-align:left}.publication-table td{white-space:normal;word-wrap:break-word}ul.service-list,ul{margin:10px 0 10px 20px;padding:0;list-style-type:disc}.article-image{width:80%;max-width:900px;min-width:500px;margin:20px auto;display:block;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.3);transition:transform 0.3s ease}.article-image:hover{transform:scale(1.02)}#brand-product-list{list-style:none;padding:0;margin:20px auto;max-width:960px;background-color:rgba(255,255,255,0.95);display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:20px}#brand-product-list li{background:#f9f9f9;padding:10px;border:1px solid #ddd;border-radius:6px;text-align:center;transition:box-shadow 0.3s ease}#brand-product-list li:hover{box-shadow:0 4px 8px rgba(0,0,0,0.15)}#brand-product-list .product-image img{width:100%;border-radius:4px}#brand-product-list .product-name{margin-top:10px;font-size:16px;color:#0A3D62}#brand-related-list{max-width:960px;margin:20px auto;background-color:rgba(255,255,255,0.95);border-collapse:collapse;box-shadow:0 1px 4px rgba(0,0,0,0.2)}#brand-related-list caption{font-family:Helvetica,Roboto,sans-serif;font-size:18px;color:#0A3D62;margin-bottom:10px}#brand-related-list th,#brand-related-list td{border:1px solid #ccc;padding:10px}#brand-related-list th{background:linear-gradient(90deg,#0A3D62,#A7C7E7);color:#fff;white-space:nowrap;text-align:left}#brand-related-list td{white-space:normal;word-wrap:break-word}.brand-feedback{max-width:960px;margin:40px auto;display:flex;justify-content:center;gap:20px;padding:10px;background-color:rgba(255,255,255,0.95);border:1px solid #ddd;border-radius:8px}.brand-feedback a{display:flex;align-items:center;font-family:Helvetica,Roboto,sans-serif;font-size:16px;color:#0A3D62;background:linear-gradient(90deg,#A7C7E7,#0A3D62);padding:8px 12px;border-radius:4px;transition:background 0.3s ease}.brand-feedback a:hover{background:linear-gradient(90deg,#0A3D62,#A7C7E7);color:#FFF}.brand-feedback img{margin-right:5px}@keyframes fadeIn{from{opacity:0}to{opacity:1}}article,nav,.brand-feedback{animation:fadeIn 1s ease-in}section{transition:background 0.5s ease,box-shadow 0.5s ease}section:hover{background:rgba(167,199,231,0.3);box-shadow:0 6px 12px rgba(0,0,0,0.2)}.chapter-nav{max-width:960px;margin:120px auto 20px;padding:10px;text-align:center;background:linear-gradient(135deg,#A7C7E7,#0A3D62);border-radius:8px}.chapter-nav a{margin:0 10px;font-family:Helvetica,Roboto,sans-serif;font-size:16px;color:#FFF;text-decoration:none;padding:4px 8px;transition:background 0.3s ease,transform 0.3s ease}.chapter-nav a:hover{background:#0A3D62;transform:scale(1.05)}