:root{
  --ink:#15130f;
  --ink-soft:#3b362e;
  --muted:#6d665a;
  --paper:#fbf9f5;
  --paper-2:#f4f0e8;
  --line:#e3ddd1;
  --gold:#96773c;
  --gold-soft:#c8b189;
  --ruby:#8c1f27;
  --sapphire:#1f2f86;
  --emerald:#17694c;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand,.kicker{
  font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC",serif;
  font-weight:400;letter-spacing:-.01em;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.kicker{
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
  font-family:inherit;font-weight:600;
}
.muted{color:var(--muted)}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(251,249,245,.92);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{font-size:19px;letter-spacing:.22em;text-transform:uppercase}
.brand small{display:block;font-family:inherit;font-size:9px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;gap:30px;font-size:13.5px;color:var(--ink-soft);align-items:center}
.nav-links a:hover{color:var(--gold)}
.nav-links a.on{color:var(--ink);border-bottom:1px solid var(--gold);padding-bottom:2px}
.nav-quote{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border:1px solid var(--line);border-radius:2px;font-size:13px;transition:.18s;
}
.nav-quote:hover{border-color:var(--ink)}
.nav-quote b{font-weight:600;min-width:14px;text-align:center}
@media(max-width:820px){.nav-links .hide-sm{display:none}}

/* ---------- page head ---------- */
.page-head{padding:52px 0 30px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(28px,3.4vw,42px);margin:12px 0 12px;line-height:1.15}
.page-head p{margin:0;max-width:60ch;font-size:14.5px;color:var(--muted)}

/* ---------- filters ---------- */
.filterbar{
  display:flex;flex-wrap:wrap;gap:12px 14px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:7px 15px;border:1px solid var(--line);border-radius:99px;background:transparent;
  font-size:13px;color:var(--ink-soft);cursor:pointer;transition:.16s;font-family:inherit;
}
.chip:hover{border-color:var(--gold-soft)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
select.inp,input.inp{
  padding:9px 12px;border:1px solid var(--line);border-radius:2px;background:#fff;
  font-family:inherit;font-size:13.5px;color:var(--ink);
}
select.inp:focus,input.inp:focus{outline:none;border-color:var(--gold)}
.filter-right{margin-left:auto;font-size:13px;color:var(--muted)}
@media(max-width:700px){.filter-right{margin-left:0;width:100%}}

/* ---------- grid ---------- */
.grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));
  gap:26px;padding:34px 0 70px;
}
.card{
  border:1px solid var(--line);border-radius:2px;background:#fff;overflow:hidden;
  display:flex;flex-direction:column;transition:.2s;
}
.card:hover{border-color:var(--gold-soft);box-shadow:0 18px 40px -28px rgba(21,19,15,.4)}
.card-media{
  aspect-ratio:4/3;position:relative;overflow:hidden;background:var(--paper-2);
}
.card-media .ph{
  position:absolute;inset:0;
}
.ph.round{background:radial-gradient(circle at 34% 30%, var(--ph-1), var(--ph-2) 62%, var(--ph-3))}
.tag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  background:rgba(255,255,255,.86);color:var(--ink-soft);padding:4px 9px;border-radius:2px;
}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:15.5px;margin:0;line-height:1.35}
.card-sub{font-size:12px;color:var(--muted);margin:-6px 0 0}
.specs{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 14px;font-size:12.5px}
.specs div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px dotted var(--line);padding-bottom:3px}
.specs dt{color:var(--muted)}
.specs dd{margin:0;font-variant-numeric:tabular-nums}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.price{font-size:16px;font-weight:600;font-variant-numeric:tabular-nums}
.price small{font-size:11.5px;font-weight:400;color:var(--muted);margin-left:2px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:2px;font-size:13.5px;cursor:pointer;
  border:1px solid transparent;transition:.18s;font-family:inherit;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:#000}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink)}
.btn-sm{padding:8px 13px;font-size:12.5px}
.empty{padding:80px 20px;text-align:center;color:var(--muted)}
.empty h3{font-size:19px;color:var(--ink);margin:0 0 8px}

/* ---------- detail ---------- */
.crumb{font-size:12.5px;color:var(--muted);padding:22px 0 0}
.crumb a:hover{color:var(--gold)}
.detail{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;padding:26px 0 70px;align-items:start}
@media(max-width:900px){.detail{grid-template-columns:1fr;gap:32px}}
.stage{border:1px solid var(--line);border-radius:2px;overflow:hidden;background:#fff}
.stage .big{aspect-ratio:1/1;position:relative}
.thumbs{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);flex-wrap:wrap}
.thumbs img{width:62px;height:62px;object-fit:cover;border:1px solid var(--line);border-radius:2px}
.detail h1{font-size:clamp(24px,2.8vw,34px);margin:8px 0 12px;line-height:1.2}
.detail .lede{font-size:14.5px;color:var(--ink-soft);margin:0 0 22px}
.bigprice{display:flex;align-items:baseline;gap:8px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:22px}
.bigprice .num{font-size:30px;font-weight:600;font-variant-numeric:tabular-nums}
.bigprice .unit{font-size:13px;color:var(--muted)}
.bigprice .sub{font-size:12.5px;color:var(--muted);margin-left:auto;text-align:right;line-height:1.4}
.param{display:grid;grid-template-columns:1fr 1fr;gap:0 26px;margin:0 0 24px}
.param div{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid #efebe3;font-size:13.5px}
.param dt{color:var(--muted)}
.param dd{margin:0;text-align:right}
.buy{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.note{font-size:12.5px;color:var(--muted);line-height:1.6}
.hl{list-style:none;padding:0;margin:0 0 24px}
.hl li{position:relative;padding-left:18px;font-size:13.5px;color:var(--ink-soft);margin-bottom:8px}
.hl li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:var(--gold-soft);border-radius:50%}
.prose{max-width:70ch;font-size:14.5px;color:var(--ink-soft);line-height:1.75;margin:0 0 16px}
.prose h3{font-size:17px;color:var(--ink);margin:28px 0 10px}
.section{padding:56px 0;border-top:1px solid var(--line)}
.section h2{font-size:clamp(22px,2.4vw,28px);margin:0 0 8px}

/* ---------- table (quote) ---------- */
.table-wrap{border:1px solid var(--line);border-radius:2px;overflow-x:auto;background:#fff;margin:26px 0 20px}
table.simple{width:100%;border-collapse:collapse;min-width:720px;font-size:13.5px}
table.simple thead th{
  text-align:left;padding:13px 16px;background:var(--paper-2);border-bottom:1px solid var(--line);
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600;white-space:nowrap;
}
table.simple td{padding:13px 16px;border-bottom:1px solid #efebe3;vertical-align:middle}
table.simple tr:last-child td{border-bottom:none}
.qty{width:76px;padding:7px 9px;border:1px solid var(--line);border-radius:2px;font-family:inherit;font-size:13px}
.rm{background:none;border:none;color:var(--muted);cursor:pointer;font-size:12.5px;font-family:inherit}
.rm:hover{color:var(--ruby)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:40px 0 54px;font-size:12.5px;color:var(--muted);background:var(--paper-2)}
.foot{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.foot-brand{font-family:"Iowan Old Style",Palatino,Georgia,serif;letter-spacing:.22em;text-transform:uppercase;color:var(--ink);font-size:14px}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);
  background:var(--ink);color:var(--paper);padding:12px 20px;border-radius:2px;
  font-size:13.5px;opacity:0;pointer-events:none;transition:.25s;z-index:99;
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- instant quote ---------- */
.qbox{border:1px solid var(--line);background:#fff;border-radius:2px;padding:26px 26px 24px;margin:26px 0 0}
.qrow{display:grid;grid-template-columns:repeat(3,1fr) 130px;gap:14px}
@media(max-width:880px){.qrow{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.qrow{grid-template-columns:1fr}}
.qfield label{display:block;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.qfield .inp{width:100%;height:42px}
.qresult{margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.qmain{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-end}
.qprice .num{font-size:38px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.qprice .per{font-size:14px;color:var(--muted);margin-left:5px}
.qsub{font-size:12.5px;color:var(--muted);margin-top:1px}
.qcalc{text-align:right;min-width:250px}
.qline{display:flex;justify-content:space-between;gap:24px;font-size:13.5px;padding:4px 0}
.qline.total{border-top:1px solid var(--line);margin-top:7px;padding-top:9px}
.qline.total b{font-size:22px;font-variant-numeric:tabular-nums}
.qmeta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:12.5px;color:var(--ink-soft);margin-top:20px;align-items:center}
.qmeta .b3{background:#eef7f0;color:#15803d;padding:3px 9px;border-radius:99px;font-size:11.5px}
.qactions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.qfallback{display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap}
.qfallback b{font-size:15px}

/* ---------- 详情页图片切换 ---------- */
.stage .big{position:relative;overflow:hidden}
.stage .big > img{width:100%;height:100%;object-fit:cover;display:block}
.stage .nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.9);border:1px solid var(--line);color:var(--ink);
  font-size:22px;line-height:1;cursor:pointer;padding:0 0 3px;
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:.18s;
}
.stage:hover .nav,.stage .nav:focus-visible{opacity:1}
.stage .nav.prev{left:12px}
.stage .nav.next{right:12px}
.stage .nav:hover{background:#fff;border-color:var(--gold-soft)}
.stage .counter{
  position:absolute;right:12px;bottom:12px;
  background:rgba(21,19,15,.6);color:#fff;
  font-size:11.5px;letter-spacing:.04em;padding:3px 10px;border-radius:99px;
  backdrop-filter:blur(4px);
}
.thumbs img{cursor:pointer;opacity:.7;transition:.15s}
.thumbs img:hover{opacity:1}
.thumbs img.on{opacity:1;border-color:var(--gold);box-shadow:0 0 0 1px var(--gold)}
@media(hover:none){.stage .nav{opacity:1}}

/* ---------- 详情图（正文下方竖排大图） ---------- */
.detail-gallery{
  display:grid;gap:18px;max-width:920px;margin:0 auto;
}
.detail-gallery img{
  width:100%;display:block;border-radius:2px;border:1px solid var(--line);
}
@media(max-width:640px){.detail-gallery{gap:12px}}