/* HORPULSE — Skin Interface Technology
   Design system: deep sea blue + warm gold, editorial scale, hairline grid */

:root{
  --ink:#0B1F33;
  --deep:#0E2A47;
  --deep-2:#071A2E;
  --deep-3:#123B60;
  --gold:#B08D57;
  --gold-l:#C9A96B;
  --gold-d:#8E6F42;
  --paper:#FFFFFF;
  --mist:#F5F6F8;
  --mist-2:#EEF1F4;
  --line:#E3E6EA;
  --line-dk:#263F5C;
  --text:#1A2733;
  --muted:#5E7086;
  --ok:#2E7D5B;
  --warn:#B5762A;
  --serif:"Georgia","Times New Roman",Songti SC,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono",ui-monospace,"Roboto Mono",Menlo,monospace;
  --max:1280px;
  --pad:clamp(20px,5vw,64px);
  --sec:clamp(72px,10vw,140px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);color:var(--text);background:var(--paper);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.lang-zh{line-height:1.85}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.12}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--pad)}
.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:0}

/* ---------- typography scale ---------- */
.display{font-size:clamp(2.6rem,5.6vw,4.8rem);letter-spacing:-.035em;line-height:1.04}
.h1{font-size:clamp(2.1rem,4vw,3.4rem);letter-spacing:-.03em}
.h2{font-size:clamp(1.7rem,3vw,2.6rem);letter-spacing:-.025em}
.h3{font-size:clamp(1.15rem,1.7vw,1.45rem);letter-spacing:-.015em}
.lead{font-size:clamp(1rem,1.25vw,1.18rem);line-height:1.75;color:var(--muted)}
.eyebrow{
  font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold-d);display:inline-flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--gold);opacity:.7}
.eyebrow.on-dark{color:var(--gold-l)}
.eyebrow.on-dark::before{background:var(--gold-l)}
.measure{max-width:62ch}
.tbc{
  font-family:var(--mono);font-size:.82em;color:var(--warn);
  background:rgba(181,118,42,.1);border:1px solid rgba(181,118,42,.28);
  padding:1px 7px;border-radius:3px;letter-spacing:.02em;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:2px;font-size:14px;font-weight:600;
  letter-spacing:.02em;border:1px solid transparent;cursor:pointer;
  transition:.22s cubic-bezier(.2,.7,.3,1);font-family:inherit;
}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-d);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-dk);color:#fff}
.btn-ghost:hover{border-color:var(--gold-l);color:var(--gold-l)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--deep-3)}
.btn-line{border-color:var(--line);color:var(--text);background:#fff}
.btn-line:hover{border-color:var(--gold);color:var(--gold-d)}
.btn .arrow{transition:transform .22s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:80;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.on-dark:not(.solid){background:linear-gradient(180deg,rgba(7,26,46,.72),rgba(7,26,46,0))}
.nav.solid{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.6) blur(14px);border-bottom-color:var(--line)}
.nav-in{max-width:var(--max);margin:0 auto;padding:18px var(--pad);display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:34px;height:34px;flex-shrink:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.16em}
.brand-sub{font-size:9px;letter-spacing:.2em;color:var(--gold);text-transform:uppercase;font-weight:600}
.nav:not(.solid):not(.on-dark) .brand-name,.nav.on-dark:not(.solid) .brand-name{color:#fff}
.nav:not(.solid).on-dark .brand-sub{color:var(--gold-l)}
.nav-links{display:flex;gap:30px;margin-left:auto;align-items:center}
.nav-links a{font-size:13.5px;font-weight:500;letter-spacing:.02em;position:relative;padding:4px 0;opacity:.85}
.nav-links a:hover{opacity:1}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--gold);transition:right .25s;
}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav:not(.solid).on-dark .nav-links a,.nav.on-dark:not(.solid) .nav-links a{color:#fff}
.nav.solid .nav-links a{color:var(--text)}
.nav.solid .brand-name{color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:14px;margin-left:8px}
.lang{display:flex;border:1px solid var(--line);border-radius:2px;overflow:hidden}
.lang button{
  background:none;border:0;padding:6px 11px;font-size:11px;font-weight:700;letter-spacing:.08em;
  cursor:pointer;font-family:inherit;color:inherit;opacity:.55;transition:.2s;
}
.lang button.on{background:var(--ink);color:#fff;opacity:1}
.nav:not(.solid).on-dark .lang{border-color:rgba(255,255,255,.3)}
.nav:not(.solid).on-dark .lang button{color:#fff}
.nav:not(.solid).on-dark .lang button.on{background:var(--gold);color:#fff}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:1.5px;background:currentColor;margin:5px 0;transition:.25s}
.nav:not(.solid).on-dark .burger{color:#fff}
.mobile-menu{
  position:fixed;inset:0;background:var(--deep-2);z-index:79;padding:110px var(--pad) 40px;
  display:none;flex-direction:column;gap:6px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{color:#fff;font-size:24px;font-weight:500;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.09)}

/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--deep-2);color:#fff;overflow:hidden;
  padding:clamp(140px,17vh,200px) 0 clamp(72px,9vw,120px);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 78% 10%,rgba(176,141,87,.20),transparent 62%),
    radial-gradient(90% 70% at 8% 92%,rgba(18,59,96,.55),transparent 60%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(120% 100% at 50% 20%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 100% at 50% 20%,#000 25%,transparent 78%);
}
.hero-in{position:relative;max-width:var(--max);margin:0 auto;padding-inline:var(--pad);display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,80px);align-items:center}
.hero h1{color:#fff;margin:22px 0 24px}
.hero .lead{color:rgba(255,255,255,.72);max-width:52ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-meta{display:flex;flex-wrap:wrap;gap:34px;margin-top:52px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-meta div{min-width:96px}
.hero-meta b{display:block;font-size:26px;font-weight:600;letter-spacing:-.02em;color:var(--gold-l)}
.hero-meta span{font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.55);text-transform:uppercase}
.pulse-wrap{position:relative;aspect-ratio:1/1;max-height:460px;justify-self:center;width:100%}
.hero-badge{
  position:absolute;bottom:26px;left:var(--pad);font-size:11px;letter-spacing:.2em;
  color:rgba(255,255,255,.4);text-transform:uppercase;
}

/* pulse line animation */
.pulse-svg{width:100%;height:100%}
.pulse-svg .ln{fill:none;stroke:var(--gold);stroke-width:1.4;stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 3.4s cubic-bezier(.4,0,.2,1) forwards}
.pulse-svg .ln2{stroke:rgba(255,255,255,.28);animation-delay:.35s}
.pulse-svg .ring{fill:none;stroke:rgba(176,141,87,.34);stroke-width:1}
.pulse-svg .dot{fill:var(--gold-l)}
@keyframes draw{to{stroke-dashoffset:0}}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:var(--sec) 0}
.sec-mist{background:var(--mist)}
.sec-deep{background:var(--deep);color:#fff}
.sec-deep h1,.sec-deep h2,.sec-deep h3{color:#fff}
.sec-deep .lead{color:rgba(255,255,255,.68)}
.sec-head{margin-bottom:clamp(40px,5vw,72px)}
.sec-head h2{margin:18px 0 18px}
.sec-head .lead{max-width:58ch}
.rule{height:1px;background:var(--line);border:0;margin:0}
.rule-dk{background:rgba(255,255,255,.14)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,90px);align-items:start}
.split-even{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.stack-lg{display:flex;flex-direction:column;gap:clamp(48px,7vw,110px)}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:#fff;padding:clamp(28px,3vw,44px);transition:.25s;position:relative}
.grid-3 .card:hover,.grid-2 .card:hover{background:var(--mist)}
.card-n{font-family:var(--mono);font-size:11px;color:var(--gold-d);letter-spacing:.1em;display:block;margin-bottom:22px}
.card h3{margin-bottom:12px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.75}
.card .arrow{display:inline-block;margin-top:18px;color:var(--gold-d);font-size:13px;font-weight:600;letter-spacing:.06em}

/* product line cards */
.plines{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.2vw,28px)}
.pline{
  border:1px solid var(--line);background:#fff;padding:clamp(26px,2.6vw,38px);
  display:flex;flex-direction:column;gap:14px;transition:.28s cubic-bezier(.2,.7,.3,1);position:relative;overflow:hidden;
}
.pline::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.7,.3,1)}
.pline:hover{box-shadow:0 22px 50px -28px rgba(11,31,51,.28);transform:translateY(-3px)}
.pline:hover::after{transform:scaleX(1)}
.pline-tier{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-d);font-weight:700}
.pline h3{font-size:1.4rem}
.pline p{font-size:14px;color:var(--muted);line-height:1.7}
.pline .go{margin-top:auto;padding-top:14px;font-size:13px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:8px}
.pline-visual{height:132px;border:1px solid var(--line);background:var(--mist);display:flex;align-items:center;justify-content:center;margin:2px 0 6px}

/* ---------- layer diagram ---------- */
.layers{border:1px solid var(--line);background:#fff}
.layer{
  display:grid;grid-template-columns:52px 1.1fr 1.3fr;gap:18px;align-items:center;
  padding:18px 24px;border-bottom:1px solid var(--line);transition:.2s;position:relative;
}
.layer:last-child{border-bottom:0}
.layer:hover{background:var(--mist)}
.layer-i{font-family:var(--mono);font-size:11px;color:var(--gold-d);letter-spacing:.06em}
.layer-name{font-weight:600;font-size:15px}
.layer-detail{font-size:13px;color:var(--muted);line-height:1.6}
.layer-bar{position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold);opacity:.18}
.layer:hover .layer-bar{opacity:1}

/* ---------- spec table ---------- */
.spec-block{margin-bottom:clamp(32px,4vw,52px)}
.spec-block:last-child{margin-bottom:0}
.spec-title{
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;color:var(--ink);
  padding-bottom:12px;border-bottom:1px solid var(--ink);margin-bottom:0;
}
table.spec{width:100%;border-collapse:collapse;font-size:14px}
table.spec tr{border-bottom:1px solid var(--line)}
table.spec tr:hover{background:var(--mist)}
table.spec td{padding:13px 16px;vertical-align:top}
table.spec td:first-child{width:26%;color:var(--muted);font-weight:500}
table.spec td:last-child{font-weight:500}
table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{
  text-align:left;padding:14px 16px;background:var(--ink);color:#fff;font-size:11px;
  letter-spacing:.14em;text-transform:uppercase;font-weight:600;
}
table.data td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
table.data tr:hover{background:var(--mist)}
table.data td.sku{font-family:var(--mono);font-size:12.5px;color:var(--gold-d);font-weight:600;white-space:nowrap}
.table-scroll{overflow-x:auto;border:1px solid var(--line)}

/* ---------- stats band ---------- */
.band{background:var(--deep);color:#fff;padding:clamp(48px,6vw,80px) 0}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.13)}
.band-cell{background:var(--deep);padding:28px 24px}
.band-cell b{display:block;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:600;letter-spacing:-.03em;color:var(--gold-l);line-height:1.1}
.band-cell span{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.04em;display:block;margin-top:8px}

/* ---------- compliance ---------- */
.comp-list{border:1px solid var(--line)}
.comp-row{display:grid;grid-template-columns:1.5fr 1.6fr 116px;gap:20px;padding:16px 22px;border-bottom:1px solid var(--line);align-items:center}
.comp-row:last-child{border-bottom:0}
.comp-row:hover{background:var(--mist)}
.comp-row .nm{font-weight:600;font-size:14.5px}
.comp-row .sc{font-size:13px;color:var(--muted)}
.badge{font-family:var(--mono);font-size:11px;letter-spacing:.08em;padding:4px 0;text-align:center;border:1px solid;border-radius:2px}
.badge.tbc{color:var(--warn);border-color:rgba(181,118,42,.4);background:rgba(181,118,42,.07)}
.badge.ok{color:var(--ok);border-color:rgba(46,125,91,.4);background:rgba(46,125,91,.07)}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14)}
.step{background:var(--deep);padding:clamp(24px,2.6vw,36px)}
.step b{font-family:var(--mono);font-size:12px;color:var(--gold-l);letter-spacing:.1em;display:block;margin-bottom:20px}
.step h4{color:#fff;font-size:1.05rem;margin-bottom:10px;font-weight:600}
.step p{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.7}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa-q{
  width:100%;background:none;border:0;text-align:left;padding:24px 44px 24px 0;cursor:pointer;
  font-size:16px;font-weight:600;font-family:inherit;color:var(--text);position:relative;letter-spacing:-.01em;
}
.qa-q::after{content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--gold-d);font-weight:300;transition:.25s}
.qa.open .qa-q::after{content:"−"}
.qa-a{display:none;padding:0 8% 28px 0;color:var(--muted);font-size:14.5px;line-height:1.85}
.qa.open .qa-a{display:block}

/* ---------- cta ---------- */
.cta-band{background:var(--deep-2);color:#fff;padding:clamp(72px,9vw,130px) 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(90% 120% at 15% 0%,rgba(176,141,87,.16),transparent 60%)}
.cta-band .wrap{position:relative}
.cta-band h2{color:#fff;max-width:24ch;margin:18px 0 20px}
.cta-band .lead{color:rgba(255,255,255,.66);max-width:54ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

/* ---------- page hero (inner) ---------- */
.phero{background:var(--deep-2);color:#fff;padding:clamp(130px,15vh,180px) 0 clamp(56px,7vw,90px);position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(100% 120% at 80% 0%,rgba(176,141,87,.18),transparent 60%)}
.phero .wrap{position:relative}
.phero h1{color:#fff;margin:20px 0 20px;max-width:20ch}
.phero .lead{color:rgba(255,255,255,.68);max-width:56ch}
.crumb{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.crumb a:hover{color:var(--gold-l)}

/* ---------- footer ---------- */
footer{background:#08192B;color:rgba(255,255,255,.62);padding:clamp(56px,7vw,88px) 0 34px;font-size:13.5px}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(28px,4vw,56px);padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-col h5{color:#fff;font-size:11px;letter-spacing:.18em;text-transform:uppercase;margin:0 0 18px;font-weight:600}
.f-col a{display:block;padding:5px 0;transition:.2s}
.f-col a:hover{color:var(--gold-l)}
.f-brand .brand-name{color:#fff;font-size:19px}
.f-brand p{margin-top:16px;line-height:1.8;max-width:38ch}
.f-bot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding-top:26px;font-size:12px;color:rgba(255,255,255,.4)}
.f-bot .disc{max-width:70ch;line-height:1.7}

/* ---------- misc ---------- */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{font-size:12px;padding:6px 12px;border:1px solid var(--line);border-radius:2px;color:var(--muted);background:#fff}
.tag-gold{border-color:rgba(176,141,87,.4);color:var(--gold-d);background:rgba(176,141,87,.05)}
.check-list li{padding:11px 0 11px 26px;position:relative;border-bottom:1px solid var(--line);font-size:14.5px}
.check-list li::before{content:"";position:absolute;left:0;top:19px;width:9px;height:1px;background:var(--gold)}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.notice{
  border:1px solid rgba(181,118,42,.3);background:rgba(181,118,42,.06);
  padding:18px 22px;font-size:13.5px;color:#7A5216;line-height:1.7;margin-top:32px;
}
.quote-strip{
  border-left:2px solid var(--gold);padding:6px 0 6px 28px;margin:0;
  font-family:var(--serif);font-style:italic;font-size:clamp(1.2rem,2vw,1.6rem);line-height:1.5;color:var(--ink);
}
.img-frame{border:1px solid var(--line);background:var(--mist);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden}
.img-frame img{width:100%;height:100%;object-fit:cover}
.mini-label{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:10px}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .hero-in{grid-template-columns:1fr;gap:44px}
  .pulse-wrap{max-height:300px;order:-1}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .plines{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .band-grid{grid-template-columns:repeat(2,1fr)}
  .split,.split-even{grid-template-columns:1fr;gap:40px}
}
@media(max-width:820px){
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:block;margin-left:auto}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .layer{grid-template-columns:34px 1fr;gap:12px}
  .layer-detail{grid-column:2}
  .comp-row{grid-template-columns:1fr;gap:8px}
  .comp-row .badge{width:96px}
  .f-grid{grid-template-columns:1fr}
  .hero-meta{gap:22px}
}
@media(max-width:560px){
  .display{font-size:2.3rem}
  .steps{grid-template-columns:1fr}
  .band-grid{grid-template-columns:1fr}
  .qa-q{padding-right:36px;font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- mini stack (product card visual) ---------- */
.mini-stack{width:64%;display:flex;flex-direction:column;gap:3px}
.mini-stack i{
  display:block;height:11px;border:1px solid var(--deep);border-radius:1px;
  background:linear-gradient(90deg,rgba(14,42,71,.92),rgba(14,42,71,.42));
}
.mini-stack i:nth-child(1){background:linear-gradient(90deg,#B08D57,rgba(176,141,87,.35))}
.mini-stack i:nth-child(3){background:linear-gradient(90deg,rgba(18,59,96,.9),rgba(18,59,96,.35))}
.mini-stack i:last-child{height:14px}

/* ---------- form ---------- */
.form{display:flex;flex-direction:column;gap:18px}
.form-row{display:flex;flex-direction:column;gap:7px}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--muted)}
.form input,.form select,.form textarea{
  font-family:inherit;font-size:14.5px;color:var(--text);background:#fff;
  border:1px solid var(--line);border-radius:2px;padding:12px 14px;width:100%;transition:.2s;
}
.form input:focus,.form select:focus,.form textarea:focus{outline:0;border-color:var(--gold);box-shadow:0 0 0 3px rgba(176,141,87,.12)}
.form textarea{resize:vertical;line-height:1.7}
.form input.err,.form textarea.err{border-color:#C0503A;background:#FFF6F4}
.form-msg{font-size:13.5px;display:none}
.form-msg.good{display:block;color:var(--ok)}
.form-msg.bad{display:block;color:#C0503A}
@media(max-width:640px){.form-2{grid-template-columns:1fr}}

/* =========================================================
   PRODUCT SHOWCASE — 产品展示（橱窗卡片 / SKU / 图库）
   ========================================================= */
.badge{
  position:absolute;top:12px;left:12px;z-index:3;
  background:var(--gold);color:#fff;font-size:10.5px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;padding:5px 11px;border-radius:1px;
}
.badge.dark{background:var(--deep)}

/* --- 主推产品大卡 --- */
.pcard{
  display:grid;grid-template-columns:1.02fr 1fr;background:#fff;
  border:1px solid var(--line);margin-bottom:52px;
}
.pcard-media{
  position:relative;background:var(--mist);border-right:1px solid var(--line);
  min-height:380px;overflow:hidden;
}
.pcard-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease}
.pcard:hover .pcard-media img{transform:scale(1.03)}
.pcard-body{padding:36px 38px;display:flex;flex-direction:column}
.pcard-tier{font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;color:var(--gold)}
.pcard h3{margin:14px 0 8px}
.pcard .tagline{font-family:var(--serif);font-style:italic;color:var(--gold-d);font-size:1.02rem}
.pcard .intro{margin-top:16px;font-size:14.5px;line-height:1.8;color:var(--text);opacity:.9}

.kv{
  margin-top:24px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:1fr 1fr;
}
.kv .cell{padding:13px 0;border-bottom:1px solid var(--line)}
.kv .cell:nth-child(odd){padding-right:20px;border-right:1px solid var(--line)}
.kv .cell:nth-child(even){padding-left:20px}
.kv .k{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.kv .v{font-size:14px;font-weight:600;margin-top:4px;line-height:1.5}

.quote-row{display:flex;gap:0;margin-top:22px;border:1px solid var(--line)}
.qr{flex:1;padding:14px 16px;border-right:1px solid var(--line)}
.qr:last-child{border-right:0}
.qr .k{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.qr .v{font-size:12.5px;font-weight:600;margin-top:5px;line-height:1.5;color:var(--text)}
.pcard-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* --- SKU 卡片网格 --- */
.sku-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-bottom:18px;
}
.sku-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sku-card{
  border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;
  transition:.22s;text-decoration:none;color:inherit;
}
.sku-card:hover{border-color:var(--gold);box-shadow:0 8px 26px rgba(14,42,71,.09);transform:translateY(-3px)}
.sku-media{position:relative;aspect-ratio:4/3;background:var(--mist);overflow:hidden}
.sku-media img{width:100%;height:100%;object-fit:cover;display:block}
.sku-body{padding:15px 17px 17px;display:flex;flex-direction:column;flex:1}
.sku-code{font-family:var(--mono);font-size:11px;color:var(--gold);letter-spacing:.05em}
.sku-name{font-weight:600;font-size:14.5px;margin:7px 0 7px;line-height:1.45}
.sku-spec{font-size:12.5px;color:var(--muted);line-height:1.65;flex:1}
.sku-moq{
  margin-top:12px;padding-top:11px;border-top:1px solid var(--line);
  font-size:11.5px;color:var(--muted);display:flex;justify-content:space-between;gap:8px;
}
.sku-moq b{color:var(--text);font-weight:600}

/* --- 产品图库 --- */
.gal{display:grid;grid-template-columns:1fr 92px;gap:12px}
.gal-main{
  border:1px solid var(--line);background:var(--mist);aspect-ratio:4/3;overflow:hidden;position:relative;
}
.gal-main img{width:100%;height:100%;object-fit:cover;display:block}
.gal-thumbs{display:flex;flex-direction:column;gap:10px}
.gal-thumbs button{
  border:1px solid var(--line);background:#fff;padding:0;cursor:pointer;
  aspect-ratio:1;overflow:hidden;transition:.2s;
}
.gal-thumbs button:hover{border-color:var(--gold)}
.gal-thumbs button.on{border-color:var(--gold);box-shadow:0 0 0 2px rgba(176,141,87,.22)}
.gal-thumbs img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.gal-cap{margin-top:11px;font-size:12.5px;color:var(--muted);line-height:1.6}
.gal-cap b{color:var(--text);font-weight:600}

/* --- 包装 / 交易条款 --- */
.trade{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);background:#fff}
.trade .t{padding:20px 22px;border-right:1px solid var(--line)}
.trade .t:last-child{border-right:0}
.trade .k{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.trade .v{font-size:13.5px;line-height:1.7;margin-top:8px}
.trade .v .tbc{display:inline-block;margin-right:6px}

/* --- 首页产品线卡片（带图） --- */
.pline-media{
  position:relative;aspect-ratio:16/10;background:var(--mist);
  margin-bottom:18px;overflow:hidden;border:1px solid var(--line);
}
.pline-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease}
.pline:hover .pline-media img{transform:scale(1.04)}
.pline-specs{margin:16px 0 0;border-top:1px solid var(--line)}
.pline-specs li{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:9px 0;border-bottom:1px solid var(--line);font-size:12.5px;
}
.pline-specs span{
  color:var(--muted);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  font-weight:600;white-space:nowrap;
}
.pline-specs b{font-weight:600;text-align:right;line-height:1.4}

/* --- 面包屑 --- */
.crumb{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase}
.crumb a{text-decoration:none;opacity:.75}
.crumb a:hover{opacity:1}
.crumb span.sep{margin:0 8px;opacity:.4}

@media(max-width:1024px){
  .sku-grid{grid-template-columns:repeat(3,1fr)}
  .trade{grid-template-columns:repeat(2,1fr)}
  .trade .t:nth-child(2){border-right:0}
  .trade .t:nth-child(1),.trade .t:nth-child(2){border-bottom:1px solid var(--line)}
}
@media(max-width:820px){
  .pcard{grid-template-columns:1fr}
  .pcard-media{border-right:0;border-bottom:1px solid var(--line);min-height:280px}
  .pcard-body{padding:26px 24px}
  .sku-grid{grid-template-columns:repeat(2,1fr)}
  .gal{grid-template-columns:1fr}
  .gal-thumbs{flex-direction:row;order:2}
  .gal-thumbs button{width:74px}
}
@media(max-width:520px){
  .sku-grid{grid-template-columns:1fr}
  .trade{grid-template-columns:1fr}
  .trade .t{border-right:0;border-bottom:1px solid var(--line)}
  .kv .row2{grid-template-columns:1fr}
  .kv .cell:nth-child(odd){padding-right:0;border-right:0}
  .kv .cell:nth-child(even){padding-left:0;border-top:1px solid var(--line)}
  .quote-row{flex-direction:column}
  .qr{border-right:0;border-bottom:1px solid var(--line)}
}