:root{
  --bg:#FBF8F3;
  --surface:#FFFFFF;
  --ink:#2B2724;
  --ink-soft:#6F675C;
  --line:#E9E1D3;
  --accent:#A87C4F;
  --accent-deep:#7C5A34;
  --accent-soft:#F4ECDF;
  --serif:Georgia,"Times New Roman","Songti SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --radius:14px;
  --maxw:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

.site-header{position:sticky;top:0;z-index:50;background:rgba(251,248,243,.94);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;height:70px}
.wordmark{font-family:var(--serif);font-size:21px;letter-spacing:.16em;font-weight:400;line-height:1}
.wordmark small{display:block;font-family:var(--sans);font-size:9.5px;letter-spacing:.3em;color:var(--ink-soft);margin-top:4px;font-weight:400}
.nav{display:flex;gap:30px;align-items:center;font-size:14px}
.nav a{color:var(--ink-soft);transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav a.active{color:var(--ink);font-weight:500}
.btn{display:inline-block;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:500;transition:all .2s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--surface)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-light{background:#fff;color:var(--accent-deep)}
.btn-light:hover{background:var(--accent-soft)}

.hero{padding:76px 0 60px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.eyebrow{font-size:12px;letter-spacing:.22em;color:var(--accent-deep);font-weight:500;margin-bottom:18px}
.hero h1{font-family:var(--serif);font-size:47px;line-height:1.14;font-weight:400;margin-bottom:22px;letter-spacing:.01em}
.hero .lead{font-size:17px;color:var(--ink-soft);margin-bottom:32px;max-width:52ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--accent-soft)}
.hero-img img{aspect-ratio:4/4.6;object-fit:cover;width:100%}
.hero-note{margin-top:18px;font-size:13px;color:var(--ink-soft)}

.trustbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0}
.trustbar-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.trust b{display:block;font-size:14px;font-weight:500;margin-bottom:3px}
.trust span{font-size:12.5px;color:var(--ink-soft)}

.section{padding:80px 0}
.section-head{max-width:660px;margin-bottom:46px}
.section-head h2{font-family:var(--serif);font-size:33px;font-weight:400;line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--ink-soft);font-size:15.5px}

.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s;display:block}
.cat-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(43,39,36,.09)}
.cat-card .ph{aspect-ratio:1;overflow:hidden;background:var(--accent-soft)}
.cat-card .ph img{width:100%;height:100%;object-fit:cover}
.cat-card .ph.planned{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;background:var(--accent-soft)}
.cat-card .ph.planned .cn{font-family:var(--serif);font-size:19px;color:var(--accent-deep);letter-spacing:.04em}
.cat-card .ph.planned .en{font-size:10.5px;letter-spacing:.2em;color:var(--ink-soft)}
.cat-card .mm{display:inline-block;margin-top:8px;font-size:11px;letter-spacing:.06em;color:var(--accent-deep);background:var(--accent-soft);border-radius:999px;padding:3px 9px}
.tag-pill{display:inline-block;font-size:10.5px;letter-spacing:.14em;color:var(--ink-soft);border:1px solid var(--line);border-radius:999px;padding:3px 9px;margin-top:8px}

.series-nav{position:sticky;top:70px;z-index:40;background:rgba(251,248,243,.96);border-bottom:1px solid var(--line);border-top:1px solid var(--line)}
.series-nav .in{max-width:var(--maxw);margin:0 auto;padding:13px 24px;display:flex;gap:22px;flex-wrap:wrap}
.series-nav a{font-size:13.5px;color:var(--ink-soft);white-space:nowrap}
.series-nav a:hover{color:var(--accent-deep)}

.wt-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.wt-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.wt-card .mm-range{font-family:var(--serif);font-size:30px;color:var(--accent-deep);line-height:1.1;margin-bottom:2px}
.wt-card .wt-name{font-size:14px;font-weight:500;margin-bottom:12px}
.wt-card p{font-size:13px;color:var(--ink-soft);line-height:1.65}
.wt-card .fam{font-size:12px;color:var(--accent-deep);margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}

.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px}
.feat-card b{display:block;font-size:16px;font-weight:500;margin-bottom:10px}
.feat-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.7;margin-bottom:14px}
.feat-card .spec{font-size:12.5px;color:var(--accent-deep);background:var(--accent-soft);border-radius:8px;padding:10px 12px;line-height:1.6}

.note-box{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius);padding:22px 24px;font-size:14px;color:var(--ink-soft);line-height:1.75}
.note-box b{color:var(--ink);font-weight:500}
.cat-card .pb{padding:12px 14px 15px}
.cat-card b{font-size:13.5px;font-weight:500;display:block;line-height:1.3}
.cat-card span{font-size:12px;color:var(--ink-soft);display:block;margin-top:3px;line-height:1.4}

.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.why-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px}
.why-card .ic{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--accent-deep)}
.why-card b{display:block;font-size:15px;font-weight:500;margin-bottom:8px}
.why-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.65}

.j-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.j-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s;display:block}
.j-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(43,39,36,.09)}
.j-card .ph{aspect-ratio:16/10;overflow:hidden;background:var(--accent-soft)}
.j-card .ph img{width:100%;height:100%;object-fit:cover}
.j-card .pb{padding:20px 22px 24px}
.j-card .tag{font-size:11px;letter-spacing:.16em;color:var(--accent-deep);font-weight:500}
.j-card b{font-family:var(--serif);font-size:19px;font-weight:400;display:block;margin:10px 0 10px;line-height:1.35}
.j-card p{font-size:13.5px;color:var(--ink-soft)}
.j-card .rd{font-size:13px;color:var(--accent-deep);font-weight:500;margin-top:14px;display:inline-block}

.cta-band{background:var(--accent-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:70px 0;text-align:center}
.cta-band h2{font-family:var(--serif);font-size:31px;font-weight:400;margin-bottom:14px}
.cta-band p{color:var(--ink-soft);margin-bottom:30px;max-width:56ch;margin-left:auto;margin-right:auto}
.cta-contacts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.site-footer{background:#2B2724;color:#EDE7DC;padding:60px 0 28px;margin-top:0}
.ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;margin-bottom:44px}
.site-footer .wordmark{color:#fff}
.site-footer .wordmark small{color:#9A9184}
.ft-grid p{font-size:13.5px;color:#B8AE9F;line-height:1.75;margin-top:16px}
.ft-tag{font-family:var(--serif);font-size:18px;color:#fff;margin-top:18px;letter-spacing:.01em;line-height:1.4}
.ft-grid b{display:block;font-size:11.5px;letter-spacing:.2em;color:#fff;font-weight:500;margin-bottom:16px}
.ft-grid a{display:block;font-size:13.5px;color:#B8AE9F;padding:5px 0}
.ft-grid a:hover{color:#fff}
.ft-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#8D8478}

.page-head{padding:64px 0 40px;border-bottom:1px solid var(--line)}
.page-head h1{font-family:var(--serif);font-size:40px;font-weight:400;line-height:1.2;margin-bottom:14px}
.page-head p{color:var(--ink-soft);font-size:16px;max-width:64ch}

.prose{max-width:760px}
.prose h2{font-family:var(--serif);font-size:26px;font-weight:400;margin:44px 0 14px;line-height:1.3}
.prose h3{font-size:16px;font-weight:500;margin:28px 0 10px}
.prose p{margin-bottom:16px;color:#3D3833;font-size:15.5px}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose li{margin-bottom:8px;color:#3D3833;font-size:15.5px}
.prose a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px}
.prose table{width:100%;border-collapse:collapse;margin:22px 0 26px;font-size:14px;background:var(--surface)}
/* wide reference tables scroll sideways instead of breaking the mobile layout */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:22px 0 26px}
.table-scroll table{margin:0;min-width:620px}
td.num{white-space:nowrap;font-variant-numeric:tabular-nums}
.prose th{background:var(--accent-soft);text-align:left;padding:10px 14px;font-weight:500;border:1px solid var(--line)}
.prose td{padding:10px 14px;border:1px solid var(--line);color:#3D3833}
.prose figure{margin:26px 0}
.prose figure img{border-radius:var(--radius);border:1px solid var(--line);width:100%}
.prose figcaption{font-size:13px;color:var(--ink-soft);margin-top:10px;text-align:center}

.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px 32px}
.contact-card h3{font-family:var(--serif);font-size:21px;font-weight:400;margin-bottom:18px}
.contact-row{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.contact-row:last-child{border-bottom:none}
.contact-row .k{width:86px;color:var(--ink-soft);flex-shrink:0;font-size:13.5px}
.contact-row .v{color:var(--ink)}
.contact-row .v a{color:var(--accent-deep);font-weight:500}

/* ---------- fabric selector CTA band (products.html / index.html) ---------- */
.selector-band{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:44px 46px;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.selector-band h2{font-family:var(--serif);font-size:30px;font-weight:400;margin-bottom:14px;line-height:1.28}
.selector-band p{color:var(--ink-soft);font-size:15px;margin-bottom:22px;max-width:56ch}
.sb-actions{display:flex;gap:12px;flex-wrap:wrap}
.sb-visual{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.sb-axis{display:flex;justify-content:space-between;font-size:11px;color:var(--ink-soft);letter-spacing:.06em;margin-bottom:12px}
.sb-bar{position:relative;height:26px;background:var(--line);border-radius:13px;overflow:hidden}
.sb-bar i{position:absolute;top:0;bottom:0;display:block}
.sb-bar i:nth-child(1){background:#E4D3BC}
.sb-bar i:nth-child(2){background:#D7BE9B}
.sb-bar i:nth-child(3){background:#C29A6B}
.sb-bar i:nth-child(4){background:#A87C4F}
.sb-bar i:nth-child(5){background:#7C5A34}
.sb-legend{display:flex;justify-content:space-between;font-size:10.5px;color:var(--ink-soft);margin-top:10px;letter-spacing:.1em}
.sb-legend span{flex:1;text-align:center}
.sb-legend span:first-child{text-align:left}
.sb-legend span:last-child{text-align:right}
a.tbl-cta{font-size:12.5px;color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
a.tbl-cta:hover{color:var(--accent)}

/* ---------------- swatch library ---------------- */
.sw-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:38px}
.sw-chip{font-family:var(--sans);font-size:12.5px;line-height:1;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);cursor:pointer;transition:all .18s}
.sw-chip:hover{border-color:var(--accent);color:var(--accent-deep)}
.sw-chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.sw-chip-all{order:-1;font-weight:500}
.sw-fam{margin-bottom:52px;scroll-margin-top:120px}
.sw-fam-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:18px}
.sw-fam-head h2{font-family:var(--serif);font-size:23px;font-weight:400;line-height:1.2}
.sw-sub{font-size:12px;color:var(--ink-soft);letter-spacing:.04em}
.sw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sw-item{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:zoom-in;transition:box-shadow .22s,transform .22s}
.sw-item:hover{box-shadow:0 10px 26px rgba(43,39,36,.10);transform:translateY(-2px)}
.sw-item img{width:100%;aspect-ratio:1;object-fit:cover;transition:transform .45s}
.sw-item:hover img{transform:scale(1.035)}
.sw-item figcaption{display:flex;align-items:baseline;justify-content:space-between;gap:8px;padding:9px 12px 11px;font-size:11.5px;color:var(--ink-soft);line-height:1.4}
.sw-item figcaption>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sw-item .mm{flex:none;font-weight:500;color:var(--accent-deep);letter-spacing:.03em}
.sw-lb{position:fixed;inset:0;z-index:200;background:rgba(28,25,22,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:34px;gap:16px}
.sw-lb[hidden]{display:none}
.sw-lb img{max-width:min(1100px,94vw);max-height:78vh;width:auto;border-radius:8px}
.sw-lb-cap{color:#EDE4D6;font-size:13px;letter-spacing:.04em;text-align:center;max-width:70ch}
.sw-lb-close{position:absolute;top:18px;right:24px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:24px;line-height:1;cursor:pointer}
.sw-lb-close:hover{background:rgba(255,255,255,.12)}

@media(max-width:960px){
  .selector-band{grid-template-columns:1fr;gap:28px;padding:32px 26px}
  .selector-band h2{font-size:25px}
}

@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-img{max-width:520px}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .j-grid,.list-grid{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .nav{display:none}
  .wt-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:1fr}
  .series-nav{top:0}
  .series-nav .in{gap:14px;overflow-x:auto}
  .sw-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .hero{padding:52px 0 44px}
  .hero h1{font-size:33px}
  .section{padding:56px 0}
  .section-head h2{font-size:27px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .trustbar-in{grid-template-columns:repeat(2,1fr);gap:18px}
  .why-grid{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr}
  .page-head h1{font-size:31px}
  .sw-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .sw-fam-head h2{font-size:20px}
  .sw-item figcaption{padding:8px 10px 9px;font-size:10.5px}
  .sw-chip{font-size:11.5px;padding:7px 12px}
  .sw-lb{padding:16px}
}

/* ---------- long-tail landing pages (silk/ use/ stock/ sourcing/ momme) ---------- */
.crumb{padding:18px 0 0;font-size:12.5px;letter-spacing:.03em;color:var(--ink-soft)}
.crumb a{color:var(--ink-soft)}
.crumb a:hover{color:var(--accent-deep)}
.crumb span{opacity:.45;margin:0 7px}
.crumb b{color:var(--ink);font-weight:500}
.page-head .lede{font-size:17px;color:var(--ink-soft);max-width:62ch;margin-top:6px}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.two-col .side{position:sticky;top:92px}
.two-col > *{min-width:0}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0 4px}
.spec-cell{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 16px}
.spec-cell .k{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft)}
.spec-cell .v{font-family:var(--serif);font-size:20px;margin-top:8px;line-height:1.2}
.spec-cell .v.sm{font-family:var(--sans);font-size:12.5px;line-height:1.45;color:var(--accent-deep)}
.kwlinks{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 6px}
.kwlinks a{font-size:12.5px;border:1px solid var(--line);border-radius:999px;padding:6px 12px;
  color:var(--ink-soft);background:var(--surface);transition:all .2s}
.kwlinks a:hover{border-color:var(--accent);color:var(--accent-deep)}
.chips-h{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);
  font-weight:500;margin:0 0 4px}
.prose .kwlinks a{text-decoration:none}
.prose .feat-grid{grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0 26px}
.prose .feat-card{padding:20px 18px}
.prose .feat-card b{font-size:14.5px;margin-bottom:6px}
.prose .feat-card p{margin-bottom:0;font-size:13px}
.faq{margin-top:52px;border-top:1px solid var(--line);padding-top:8px}
.faq h2{font-family:var(--serif);font-size:26px;font-weight:400;margin:30px 0 10px}
.faq h3{font-size:15.5px;font-weight:500;margin:24px 0 6px;color:var(--ink)}
.faq p{color:#3D3833}
.badge{display:inline-block;font-size:11px;letter-spacing:.06em;padding:3px 9px;border-radius:999px;
  border:1px solid var(--line);white-space:nowrap}
.b-stock{background:#EDF3E9;border-color:#CFDEC6;color:#3C5A2E}
.b-dye{background:var(--accent-soft);border-color:#E3D2B8;color:var(--accent-deep)}
.b-order{background:#F3F0EC;color:var(--ink-soft)}
.spec-list{font-size:13px;line-height:2;color:var(--ink-soft)}
.cat-grid.c5{grid-template-columns:repeat(5,1fr)}
.prose table a{text-decoration:none;border-bottom:1px solid rgba(124,90,52,.35)}
@media(max-width:960px){
  .two-col{grid-template-columns:minmax(0,1fr);gap:34px}
  .two-col .side{position:static}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid.c5{grid-template-columns:repeat(2,1fr)}
  .prose .feat-grid{grid-template-columns:1fr}
}

/* ---- weave structure diagram (inline SVG, from the interlacing pattern) ---- */
.weave-meta{font-size:13.5px;color:var(--ink-soft);margin:0 0 14px}
.weave-meta b{color:var(--ink);font-weight:600}
.weave-fig{display:flex;gap:22px;align-items:flex-start;flex-wrap:wrap;
  background:var(--paper-2,#FBF8F4);border:1px solid var(--line);border-radius:10px;
  padding:18px;margin:6px 0 22px}
.weave-svg{flex:0 0 auto;max-width:190px}
.weave-svg svg{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:6px}
.weave-cap{flex:1 1 240px;min-width:0}
.weave-cap p{font-size:12.5px;line-height:1.65;color:var(--ink-soft);margin:0 0 10px}
.weave-cap svg{width:100%;max-width:250px;height:auto;display:block}
.weave-fig + p{margin-top:0}
@media(max-width:640px){
  .weave-fig{flex-direction:column;gap:14px}
  .weave-svg{max-width:150px}
}

/* ---- trade pages: absorbed-keyword chips ---- */
.kw-chip{display:inline-block;font-size:12px;letter-spacing:.01em;padding:4px 11px;margin:0 6px 7px 0;
  border:1px solid var(--line);border-radius:999px;background:var(--paper-2,#FBF8F4);color:var(--ink-soft)}
.side .spec-list li{margin:0 0 7px;font-size:13px;line-height:1.6;color:var(--ink-soft)}
.side .spec-list li b{color:var(--ink);font-weight:600}

/* ---- specs pages: current-weight highlight row ---- */
tr.hl td{background:var(--paper-2,#FBF8F4);font-weight:600}
tr.hl td:first-child{border-left:3px solid var(--accent,#B08D57)}