*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;color:#2b2b2b;background:#f4f4f6;font-size:14px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.wrap{max-width:1240px;margin:0 auto;padding:0 14px}
.promo{background:linear-gradient(90deg,#b3001b,#e04163);color:#fff;text-align:center;font-size:13px;padding:8px 0;letter-spacing:.2px}
header{background:#fff;border-bottom:1px solid #ececef;position:sticky;top:0;z-index:50}
.hdr{display:flex;align-items:center;gap:18px;height:70px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo .lm{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,#b3001b,#e04163);display:grid;place-items:center;color:#fff;font-size:18px;font-weight:800}
.logo b{font-size:17px;color:#b3001b;white-space:nowrap}
nav.main{margin-left:auto;display:flex;gap:22px;font-size:13px;color:#555}
nav.main a:hover{color:#b3001b}
.langsw{display:flex;gap:2px;font-size:11px;font-weight:700;margin-left:10px}
.langsw a{padding:4px 8px;border:1px solid #e6e6ea;color:#999;border-radius:5px;letter-spacing:.4px}
.langsw a.on{background:#b3001b;border-color:#b3001b;color:#fff}
.langsw a:hover{border-color:#b3001b;color:#b3001b}
.langsw a.on:hover{color:#fff}
.hz{font-size:12px;color:#999;padding-left:18px;border-left:1px solid #eee}
.crumb{font-size:12px;color:#999;padding:12px 0}
.crumb a:hover{color:#b3001b}
.card{background:#fff;border-radius:12px}
.top{display:grid;grid-template-columns:480px 1fr;gap:30px;padding:22px;margin-bottom:14px}
.gal .big{width:100%;aspect-ratio:1;border-radius:10px;overflow:hidden;background:#fafafa;display:grid;place-items:center}
.gal .big img{width:100%;height:100%;object-fit:contain}
.thumbs{display:flex;gap:7px;margin-top:10px;flex-wrap:wrap}
.thumbs img{width:56px;height:56px;object-fit:cover;border:2px solid #eee;border-radius:6px;cursor:pointer;transition:.15s}
.thumbs img:hover{border-color:#e8a0ae}
.thumbs img.on{border-color:#b3001b}
h1{font-size:20px;margin:0 0 8px;line-height:1.35;font-weight:700}
.art{color:#999;font-size:12px;margin-bottom:12px}
.art b{color:#b3001b}
.price{display:flex;align-items:baseline;gap:10px;margin:12px 0 6px}
.price b{font-size:24px;font-weight:800;color:#b3001b}
.price .note{font-size:11px;color:#e07000;border:1px solid #f0c99a;background:#fff8ef;border-radius:4px;padding:2px 7px}
.opt{font-size:12px;color:#999;margin-bottom:16px;line-height:1.6}
h2.sec{font-size:12px;color:#999;font-weight:700;letter-spacing:.6px;text-transform:uppercase;margin:18px 0 9px;padding-bottom:7px;border-bottom:1px solid #f0f0f3}
table.spec{width:100%;border-collapse:collapse;font-size:13px}
table.spec td{padding:8px 0;border-bottom:1px dashed #f0f0f3;vertical-align:top}
table.spec td.k{color:#999;width:150px}
table.spec td.v{font-weight:600}
.feat{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.feat span{background:#fdeef1;color:#b3001b;border-radius:999px;padding:6px 13px;font-size:12px;font-weight:600}
ul.flist{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
ul.flist li{position:relative;padding-left:20px;font-size:13px;line-height:1.55}
ul.flist li:before{content:"";position:absolute;left:0;top:5px;width:11px;height:11px;border-radius:50%;background:#e9f7ec;border:2px solid #2e9e46}
.cta{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.cta a{flex:1;min-width:150px;text-align:center;padding:13px;border-radius:9px;font-weight:700;font-size:14px;transition:.15s}
.cta .b1{background:#b3001b;color:#fff}
.cta .b1:hover{background:#8f0016}
.cta .b2{background:#fff;color:#b3001b;border:2px solid #b3001b}
.cta .b2:hover{background:#fdeef1}

/* ── 下单区 ── */
.buybar{display:flex;gap:10px;align-items:flex-end;margin-top:18px;padding:16px;
  background:#faf7f8;border:1px solid #f3e6e9;border-radius:11px}
.qwrap{display:flex;flex-direction:column;gap:6px}
.qwrap label{font-size:12px;color:#888;font-weight:600}
.qwrap input{width:100px;padding:12px;border:1px solid #ddd;border-radius:8px;font-size:15px;
  text-align:center;font-family:inherit;font-weight:600;color:#2b2b2b}
.qwrap input:focus{outline:0;border-color:#b3001b}
.buybtn{flex:1;background:#b3001b;color:#fff;border:0;border-radius:9px;padding:14px 22px;
  font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;transition:.15s}
.buybtn:hover{background:#8f0016}
.buybtn:active{transform:scale(.985)}
.buynote{font-size:12px;color:#999;line-height:1.6;margin:9px 0 0}

/* ── 加购轻提示 ── */
.fs-toast{position:fixed;right:22px;bottom:22px;z-index:999;background:#fff;border-radius:12px;
  box-shadow:0 8px 30px rgba(0,0,0,.16);padding:16px 20px;max-width:320px;font-size:13px;
  transform:translateY(20px);opacity:0;transition:.28s;border-left:4px solid #b3001b}
.fs-toast.show{transform:none;opacity:1}
.fs-toast b{display:block;color:#2e9e46;font-size:13px;margin-bottom:4px}
.fs-toast span{display:block;color:#666;line-height:1.45;margin-bottom:9px}
.fs-toast a{color:#b3001b;font-weight:700;font-size:13px}
.box{background:#fff;border-radius:12px;padding:22px;margin-bottom:14px}
.box h3{font-size:15px;margin:0 0 14px;font-weight:700}
.det img{width:100%;display:block;margin:0 auto 12px;border-radius:8px;background:#fafafa}
.rel{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.rel .c{background:#fff;border-radius:10px;overflow:hidden;font-size:12px;transition:.15s}
.rel .c:hover{box-shadow:0 4px 16px rgba(0,0,0,.09)}
.rel .c img{width:100%;aspect-ratio:1;object-fit:cover;display:block;background:#fafafa}
.rel .c .t{padding:8px 9px 4px;color:#555;line-height:1.35;height:48px;overflow:hidden}
.rel .c .p{padding:0 9px 9px;color:#b3001b;font-weight:700}

/* ── 工厂实力条 ── */
.facts{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:14px 0}
.facts .f{background:#faf7f8;border:1px solid #f3e6e9;border-radius:12px;padding:18px 12px;text-align:center}
.facts .f b{display:block;font-size:22px;color:#b3001b;font-weight:800;line-height:1.1}
.facts .f span{display:block;font-size:12px;color:#888;margin-top:6px;line-height:1.4}

/* ── 常见问题 ── */
details.faq{background:#fff;border-radius:10px;margin-bottom:9px;overflow:hidden;border:1px solid #f0f0f3}
details.faq summary{padding:15px 18px;cursor:pointer;font-weight:600;font-size:14px;list-style:none;position:relative;padding-right:42px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:20px;color:#b3001b;font-weight:400}
details.faq[open] summary:after{content:"–"}
details.faq .a{padding:0 18px 16px;color:#666;font-size:13px;line-height:1.7}

/* ── 页脚 ── */
footer{background:#1e1e22;color:#b8b8c0;margin-top:24px;padding:36px 0 0;font-size:13px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:28px}
footer h4{color:#fff;font-size:13px;margin:0 0 14px;font-weight:700;letter-spacing:.4px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:9px;line-height:1.5}
footer a:hover{color:#fff}
footer .fbrand b{color:#fff;font-size:16px;display:block;margin-bottom:10px}
footer .fbrand p{line-height:1.8;color:#8f8f99;margin:0}
footer .bot{border-top:1px solid #2e2e34;padding:18px 0;color:#767680;font-size:12px;text-align:center;line-height:1.7}

/* 法律页排版 */
.legal{background:#fff;border-radius:12px;padding:34px 38px;line-height:1.85;font-size:14px}
.legal h1{font-size:24px;margin:0 0 6px}
.legal h2{font-size:16px;margin:26px 0 10px;color:#b3001b}
.legal p{margin:0 0 12px;color:#444}
.legal ul{margin:0 0 12px;padding-left:22px;color:#444}
.legal li{margin-bottom:7px}

@media(max-width:900px){
  .top{grid-template-columns:1fr;gap:20px;padding:16px}
  .rel{grid-template-columns:repeat(3,1fr)}
  .facts{grid-template-columns:repeat(3,1fr)}
  nav.main,.hz{display:none}
  .langsw{margin-left:auto}
  footer .cols{grid-template-columns:1fr 1fr;gap:24px}
  ul.flist{grid-template-columns:1fr}
}
@media(max-width:560px){
  .hdr{height:58px;gap:10px}.logo .lm{width:34px;height:34px;font-size:15px}.logo b{font-size:15px}
  .wrap{padding:0 11px}h1{font-size:17px}.price b{font-size:21px}
  .rel{grid-template-columns:repeat(2,1fr)}.facts{grid-template-columns:repeat(2,1fr)}
  .thumbs img{width:46px;height:46px}.box{padding:16px}
  .legal{padding:20px 18px}
  footer .cols{grid-template-columns:1fr}
}