*{box-sizing:border-box}body{margin:0;color:#333;background:#f5f7fa;font:14px/1.7 Arial,"Microsoft YaHei",sans-serif}.container{width:1200px;max-width:calc(100% - 32px);margin:0 auto}.site-header{height:72px;background:#fff;border-bottom:1px solid #e8edf3}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:26px;font-weight:700;color:#2e6faa;text-decoration:none}.site-header nav{display:flex;gap:34px}.site-header nav a{color:#333;text-decoration:none}.site-header nav a:hover{color:#2e6faa}.site-footer{margin-top:60px;padding:28px 0;color:#8793a3;text-align:center;background:#fff}.crumb{padding:22px 0;color:#8793a3}.crumb a{color:#2e6faa;text-decoration:none}h1{margin:0 0 16px;color:#202d3d;font-size:30px}h2{margin:0;color:#202d3d;font-size:22px}h3{margin:12px 0 6px;font-size:16px;color:#333;font-weight:400}.seo-hero{padding:42px 52px;background:#fff;border-top:3px solid #2e6faa}.seo-hero p,.intro{color:#697586}.section{margin-top:28px}.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.section-title a{color:#2e6faa;text-decoration:none}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.product-card{display:block;min-width:0;padding:16px;background:#fff;color:#333;text-decoration:none;border:1px solid #edf0f4;transition:box-shadow .2s,transform .2s}.product-card:hover{box-shadow:0 6px 18px rgba(36,73,109,.12);transform:translateY(-2px)}.product-card img{display:block;width:100%;height:220px;object-fit:contain;background:#fafafa}.product-card strong{display:block;color:#e4393c;font-size:20px}.product-card span{display:block;color:#8994a2}.detail-page{margin-bottom:40px;background:#fff}.detail-top{display:grid;grid-template-columns:520px 1fr;gap:54px;padding:34px}.detail-gallery{height:440px;display:flex;align-items:center;justify-content:center;background:#fafbfd}.detail-gallery img{width:100%;height:100%;object-fit:contain}.detail-summary h1{font-size:28px}.sales{color:#8994a2;margin:16px 0}.price{margin:26px 0;color:#e4393c;font-size:32px;font-weight:700}.primary-button{display:inline-block;padding:12px 34px;background:#e4393c;color:#fff;text-decoration:none}.detail-content{padding:30px 34px;border-top:1px solid #edf0f4}.detail-content h2{margin:24px 0 14px;padding-left:12px;border-left:3px solid #2e6faa}.detail-content img{max-width:100%;height:auto}@media(max-width:800px){.site-header nav{gap:12px;font-size:12px}.grid{grid-template-columns:repeat(2,1fr)}.detail-top{grid-template-columns:1fr;padding:18px}.detail-gallery{height:300px}.container{max-width:calc(100% - 20px)}.product-card img{height:150px}}