*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;color:#2b2b2b;background:#f4f6f9;line-height:1.6}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 14px}
header.top{background:#16213e;position:sticky;top:0;z-index:30;box-shadow:0 1px 6px rgba(0,0,0,.18)}
.top-inner{display:flex;align-items:center;gap:16px;height:60px}
.logo{font-size:19px;font-weight:700;color:#fff;white-space:nowrap;line-height:1.25}
.logo small{display:block;font-size:11px;color:#9fb0cc;font-weight:400}
.search{flex:1;display:flex;max-width:520px;border:2px solid #2f6fd0;border-radius:24px;overflow:hidden;background:#fff}
.search input{flex:1;border:none;outline:none;padding:0 16px;font-size:14px;height:36px}
.search button{background:#2f6fd0;color:#fff;border:none;padding:0 20px;font-size:14px;cursor:pointer}
.cartbtn{position:relative;font-size:14px;color:#fff;white-space:nowrap;font-weight:600}
.cartbtn .n{position:absolute;right:-12px;top:-8px;background:#e63946;color:#fff;border-radius:9px;font-size:11px;padding:0 5px;display:none}
nav.cats{background:#1f2d4d;border-bottom:1px solid #2b3a5c}
.cat-scroll{display:flex;gap:8px;padding:10px 14px;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.cat-scroll::-webkit-scrollbar{height:0}
.cat-chip{display:inline-block;padding:6px 14px;font-size:13px;border-radius:16px;background:#2b3a5c;color:#c9d6ea;flex-shrink:0;transition:.15s}
.cat-chip:hover{background:#35507f;color:#fff}
.cat-chip.on{background:#2f6fd0;color:#fff}
.cols{display:grid;grid-template-columns:repeat(auto-fill,minmax(226px,1fr));gap:14px;margin:16px 0}
.pcard{background:#fff;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:.15s}
.pcard:hover{box-shadow:0 6px 18px rgba(0,0,0,.1)}
.pcard .pimg{background:#fff;padding:8px 8px 0}
.pcard .pimg img{width:100%;height:auto;display:block}
.pcard .pinfo{padding:8px 12px 14px;display:flex;flex-direction:column;flex:1}
.pcard .pn{font-size:13px;line-height:1.45;color:#333;height:38px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pcard .pp{margin-top:auto;padding-top:8px;color:#e63946;font-weight:700;font-size:16px}
.pcard .pp small{color:#aaa;font-weight:400;font-size:11px;margin-left:6px;text-decoration:line-through}
.hot-sec h2,.sec h2{font-size:18px;padding-left:10px;border-left:4px solid #2f6fd0;margin:20px 0 12px;color:#1f2d4d}
.pagebox{background:#fff;border-radius:12px;padding:20px;margin:16px 0}
.pagebox h1{font-size:18px;color:#1f2d4d;margin-bottom:12px}
.chipwrap{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.brand-intro{background:#fff;border-radius:12px;padding:20px;margin:16px 0}
.brand-intro h2{font-size:16px;margin-bottom:10px;color:#1f2d4d}
.brand-intro p{font-size:14px;color:#555;line-height:1.85}
.breadcrumb{font-size:12px;color:#8a94a6;margin:14px 0}
.detail{display:grid;grid-template-columns:1.05fr 1fr;gap:26px;background:#fff;padding:20px;border-radius:12px;margin:16px 0}
.gallery .main{background:#fff;border:1px solid #eef1f5;border-radius:10px;overflow:hidden}
.gallery .main img{width:100%;height:auto;display:block}
.gallery .thumbs{display:flex;gap:10px;margin-top:10px}
.gallery .thumbs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:2px solid #eef1f5;cursor:pointer}
.gallery .thumbs img.on{border-color:#2f6fd0}
.dinfo h1{font-size:20px;color:#1f2d4d;margin-bottom:12px;line-height:1.4}
.pricebox{background:#fff5f6;border-radius:10px;padding:14px;margin-bottom:14px}
.pricebox .now{color:#e63946;font-size:26px;font-weight:700}
.pricebox .old{color:#aaa;text-decoration:line-through;margin-left:10px;font-size:14px}
.specs{list-style:none;font-size:13px;color:#555;margin-bottom:16px}
.specs li{padding:5px 0;border-bottom:1px dashed #eef1f5}
.specs li b{display:inline-block;width:88px;color:#98a2b3;font-weight:400}
.qty{display:flex;align-items:center;gap:12px;margin:16px 0;font-size:14px;color:#555}
.qtybox{display:flex;align-items:center}
.qtybox button{width:32px;height:32px;border:1px solid #dfe4ec;background:#fff;border-radius:6px;font-size:16px;cursor:pointer;line-height:1}
.qtybox input{width:50px;height:32px;text-align:center;border:1px solid #dfe4ec;border-radius:6px;margin:0 6px}
.btn{display:inline-block;border:none;cursor:pointer;border-radius:8px;padding:12px 26px;font-size:15px;font-family:inherit}
.btn.primary{background:#2f6fd0;color:#fff}
.btn.ghost{background:#fff;color:#2f6fd0;border:1px solid #2f6fd0}
.btn.block{display:block;width:100%;margin-top:14px}
.longdetail{margin-top:20px;background:#fff;border-radius:12px;padding:20px;font-size:14px;color:#555;line-height:1.9;white-space:pre-line}
.longdetail img{max-width:320px;width:100%;height:auto;margin:14px auto;border-radius:8px}
.cartitem{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #f1f4f8}
.cartitem img{width:60px;height:60px;object-fit:cover;border-radius:8px}
.ci-t{flex:1;font-size:13px}
.ci-p{color:#e63946;font-weight:700}
.empty{text-align:center;padding:40px;color:#98a2b3;font-size:14px}
.sumrow{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f1f4f8;font-size:14px}
.sumrow.total b{color:#e63946;font-size:20px}
.fgroup{margin-bottom:14px}
.fgroup label{display:block;font-size:13px;color:#667085;margin-bottom:5px}
.fgroup input{width:100%;height:42px;border:1px solid #dfe4ec;border-radius:8px;padding:0 12px;font-size:14px;outline:none}
.fgroup input:focus{border-color:#2f6fd0}
.payopt{border:1.5px solid #1677FF;border-radius:8px;padding:12px 16px;background:#f2f7ff;display:flex;align-items:center}
.payopt .txt{margin-left:10px;font-size:14px;color:#333}
.payopt .txt b{color:#1f2d4d}
.payopt .tag{margin-left:auto;color:#1677FF;font-size:13px;font-weight:600}
.paytip{font-size:12px;color:#98a2b3;margin-top:8px;line-height:1.7}
.paybox{text-align:center;padding:30px 10px}
.paybox .alipay{display:inline-flex;align-items:center;font-size:18px;font-weight:600;color:#1677FF;margin-bottom:14px}
.paybox .amt{font-size:36px;color:#e63946;font-weight:700;margin:14px 0}
.paybox .ono{font-size:13px;color:#98a2b3}
.sbar{margin:16px 0}
.sbar input{width:100%;height:44px;border:1px solid #dfe4ec;border-radius:22px;padding:0 18px;font-size:14px;outline:none}
footer.ft{background:#16213e;margin-top:30px;padding:26px 0;color:#9fb0cc}
.ft .cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:16px}
.ft h4{font-size:14px;margin-bottom:10px;color:#fff}
.ft a,.ft div{display:block;font-size:13px;color:#9fb0cc;padding:3px 0}
.ft a:hover{color:#fff}
.ft .copy{border-top:1px solid #24314f;padding-top:14px;font-size:12px;color:#8296b3;text-align:center;line-height:1.9}
.ft .copy a{display:inline;color:#8296b3}
@media(max-width:760px){.detail{grid-template-columns:1fr}.ft .cols{grid-template-columns:1fr 1fr}.cols{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}