:root{
  --paper:#F9F4EA;
  --linen:#F2EBDC;
  --linen-2:#E8DCC3;
  --ink:#1C1917;
  --ink-soft:#3D3A35;
  --ink-mute:#56534A;
  --midnight:#121114;
  --midnight-2:#1C1D24;
  --midnight-3:#252630;
  --amber:#B87D41;
  --amber-deep:#8B5A1E;
  --amber-glow:#D4933F;
  --clay:#B16F50;
  --sage:#8B9E7C;
  --mist:#B8C9C7;
  --mist-deep:#738E8C;
  --line:rgba(28,25,23,.12);
  --line-2:rgba(28,25,23,.07);
  --serif:"Fraunces","Noto Serif SC",Georgia,serif;
  --sans:"Hanken Grotesk","Noto Sans SC",system-ui,sans-serif;
  --maxw:1280px;
}
html[data-lang="zh"]{
  --serif:"Noto Serif SC","Fraunces",serif;
  --sans:"Noto Sans SC","Hanken Grotesk",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:var(--sans);
  background:var(--linen);
  color:var(--ink);
  line-height:1.65;
  font-size:clamp(.95rem,1.2vw,1.05rem);
  overflow-x:hidden;
  position:relative;
}
/* grain overlay */
body::after{
  content:"";position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:.06;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:var(--amber);color:var(--paper)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,64px)}

/* focus & accessibility */
:focus-visible{outline:2px solid var(--amber-deep);outline-offset:2px}
.skip-link{position:absolute;top:-100%;left:16px;background:var(--ink);color:var(--paper);padding:12px 20px;z-index:10000;border-radius:0 0 8px 8px;font-family:var(--sans);font-weight:600;font-size:.9rem}
.skip-link:focus{top:0}

/* reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
/* touch-safe interactions */
@media(hover:none)and(pointer:coarse){
  .pcard:hover{transform:none;box-shadow:0 20px 46px -38px rgba(28,25,23,.3)}
  .pcard:hover .quote{gap:6px}
  .pillar:hover{background:var(--paper)}
  .mat:hover{transform:none}
}

.serif{font-family:var(--serif)}
.eyebrow{
  font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;font-weight:600;
  color:var(--amber-deep);display:inline-flex;align-items:center;gap:.7em;
}
html[data-lang="zh"] .eyebrow{letter-spacing:.18em}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber-deep);display:inline-block}

/* language visibility helper for font weight nuance handled by JS innerHTML swap */

/* ============ NAV ============ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,64px);
  transition:background .4s ease, padding .4s ease, box-shadow .4s ease, color .4s;
  mix-blend-mode:normal;
}
nav.scrolled{
  background:rgba(242,235,220,.78);backdrop-filter:blur(16px);
  padding:12px clamp(20px,5vw,64px);
  box-shadow:0 1px 0 var(--line-2),0 20px 50px -36px rgba(28,25,23,.35);
}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600;font-size:1.32rem;letter-spacing:.02em}
.brand .mark{
  width:34px;height:34px;border-radius:48% 52% 55% 45%/55% 48% 52% 45%;
  background:linear-gradient(135deg,var(--amber-glow),var(--amber-deep));
  box-shadow:inset -3px -4px 8px rgba(0,0,0,.22),inset 3px 3px 6px rgba(255,255,255,.35);
  flex:none;transition:border-radius .6s;
}
.brand:hover .mark{border-radius:55% 45% 48% 52%/45% 55% 45% 55%}
.brand b{font-weight:600}
.brand span{font-size:.62rem;letter-spacing:.34em;font-family:var(--sans);font-weight:600;color:var(--ink-mute);display:block;line-height:1;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:30px;font-size:.86rem;font-weight:500}
.nav-links a{position:relative;padding:4px 0;opacity:.82;transition:opacity .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--amber);transition:width .3s}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:14px}
.lang-toggle{
  font-family:var(--sans);font-size:.78rem;font-weight:600;letter-spacing:.05em;
  border:1px solid var(--line);background:transparent;color:inherit;cursor:pointer;
  padding:7px 13px;border-radius:30px;transition:all .25s;display:flex;align-items:center;gap:6px;
  min-height:44px;min-width:44px;
}
.lang-toggle:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.lang-toggle:active{transform:scale(.96)}
.btn{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:none;
  font-family:var(--sans);font-weight:600;font-size:.85rem;letter-spacing:.01em;
  padding:11px 22px;border-radius:32px;transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .25s;
  min-height:44px;
}
.btn:active{transform:scale(.96)}
.btn-amber{background:var(--ink);color:var(--paper)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 12px 22px -12px rgba(28,25,23,.45)}
.btn-amber .arrow{transition:transform .3s}
.btn-amber:hover .arrow{transform:translate(4px,-4px)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:inherit}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.nav-toggle{display:none}
/* dark-hero pages: keep nav legible over the dark subhero before scroll */
body.hero-dark nav:not(.scrolled){color:var(--linen)}
body.hero-dark nav:not(.scrolled) .brand span{color:rgba(240,233,218,.62)}
body.hero-dark nav:not(.scrolled) .nav-toggle span{background:var(--linen)}
body.hero-dark nav:not(.scrolled) .lang-toggle{border-color:rgba(240,233,218,.34)}
body.hero-dark nav:not(.scrolled) .lang-toggle:hover{border-color:var(--linen);background:var(--linen);color:var(--ink)}

/* ============ PILLOW FINDER (选枕系统) ============ */
.finder{background:var(--paper)}
.finder-card{background:var(--linen);border:1px solid var(--line-2);border-radius:22px;padding:clamp(26px,4vw,46px);max-width:940px}
.fq{margin-bottom:24px}
.fq-label{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--ink-mute);margin-bottom:12px;display:block}
html[data-lang="zh"] .fq-label{letter-spacing:.04em}
.fopts{display:flex;flex-wrap:wrap;gap:10px}
.fopt{border:1px solid var(--line);background:var(--paper);cursor:pointer;font-family:var(--sans);font-size:.9rem;font-weight:600;color:var(--ink-soft);padding:10px 18px;border-radius:30px;transition:background .25s,color .25s,border-color .25s,transform .25s;min-height:44px}
.fopt:hover{border-color:var(--ink);transform:translateY(-1px)}
.fopt:active{transform:scale(.96)}
.fopt.sel{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.finder-result{max-height:0;opacity:0;overflow:hidden;transition:max-height .55s ease,opacity .45s ease,margin-top .45s}
.finder-result.show{max-height:1400px;opacity:1;margin-top:30px}
.fr-head{border-top:1px solid var(--line);padding-top:28px}
.fr-head h3{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:500;margin-top:8px}
.fr-guide{color:var(--ink-soft);font-size:1.05rem;margin-top:14px;line-height:1.65;max-width:660px}
.fr-note{color:var(--amber-deep);font-weight:600;font-size:.95rem;margin-top:12px}
.fr-models{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}
.fmodel{display:flex;flex-direction:column;gap:3px;border:1px solid var(--line);border-radius:14px;padding:13px 20px;background:var(--paper);transition:border-color .25s,transform .25s}
.fmodel:hover{border-color:var(--amber-deep);transform:translateY(-2px)}
.fmodel b{font-family:var(--serif);font-weight:600;font-size:1.04rem}
.fmodel span{font-size:.72rem;letter-spacing:.12em;color:var(--ink-mute)}
.fr-not{font-size:.92rem;color:var(--ink-mute);margin-bottom:22px;max-width:660px}
.fr-not b{color:var(--ink)}
.finder-result .btn-amber{background:var(--amber);color:var(--ink)}
.finder-result .btn-amber:hover{background:var(--amber-glow)}
.fr-disc{font-size:.8rem;color:var(--ink-mute);margin-top:16px;font-style:italic}
html[data-lang="zh"] .fr-disc{font-style:normal}

/* ============ HERO ============ */
.hero{
  position:relative;min-height:100vh;min-height:100dvh;display:flex;align-items:center;
  padding-top:120px;padding-bottom:60px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 82% 18%,rgba(212,147,63,.25),transparent 55%),
    radial-gradient(90% 80% at 8% 92%,rgba(184,201,199,.35),transparent 60%),
    linear-gradient(165deg,var(--paper),var(--linen-2));
}
.blob{
  position:absolute;border-radius:42% 58% 56% 44%/48% 42% 58% 52%;
  filter:blur(.5px);z-index:0;opacity:.82;
  animation:morph 22s ease-in-out infinite;
}
.blob-1{
  width:min(46vw,560px);aspect-ratio:1;right:-4%;top:14%;
  background:radial-gradient(circle at 35% 30%,var(--amber-glow),var(--clay) 70%,var(--amber-deep));
  box-shadow:inset -30px -40px 80px rgba(110,55,8,.3),inset 24px 30px 70px rgba(255,225,180,.55),0 50px 120px -40px rgba(139,90,30,.35);
}
.blob-2{
  width:min(22vw,250px);aspect-ratio:1;right:30%;top:8%;
  background:radial-gradient(circle at 40% 35%,#fff,var(--mist) 75%);
  box-shadow:inset -14px -18px 40px rgba(115,142,140,.35),inset 10px 12px 30px #fff;
  animation-duration:13s;animation-delay:-4s;opacity:.85;
}
@keyframes morph{
  0%,100%{border-radius:42% 58% 56% 44%/48% 42% 58% 52%;transform:rotate(0deg) scale(1)}
  33%{border-radius:58% 42% 44% 56%/56% 58% 42% 44%;transform:rotate(5deg) scale(1.03)}
  66%{border-radius:48% 52% 62% 38%/42% 56% 44% 58%;transform:rotate(-4deg) scale(.98)}
}
.hero-inner{position:relative;z-index:2;max-width:880px}
.hero h1{
  font-family:var(--serif);font-weight:340;
  font-size:clamp(2.9rem,7.4vw,6.4rem);line-height:.98;letter-spacing:-.02em;
  margin:26px 0 0;color:var(--ink);
}
html[data-lang="zh"] .hero h1{font-weight:500;line-height:1.08;letter-spacing:.01em}
.hero h1 em{font-style:italic;font-weight:340;color:var(--amber-deep)}
html[data-lang="zh"] .hero h1 em{font-style:normal;font-weight:600}
.hero h1 .out{
  -webkit-text-stroke:1.2px var(--ink);color:transparent;font-style:italic;
}
html[data-lang="zh"] .hero h1 .out{-webkit-text-stroke:0;color:var(--ink)}
.hero p.lead{
  font-size:clamp(1.02rem,1.5vw,1.22rem);max-width:560px;margin:30px 0 0;color:var(--ink-soft);font-weight:400;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:clamp(26px,5vw,64px);margin-top:64px;
  padding-top:30px;border-top:1px solid var(--line);max-width:720px;
}
.hstat .n{font-family:var(--serif);font-size:clamp(1.9rem,3.6vw,2.8rem);font-weight:400;line-height:1;letter-spacing:-.01em}
.hstat .n .u{font-size:.5em;color:var(--amber-deep);margin-left:2px}
.hstat .l{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-mute);margin-top:9px;font-weight:600}
html[data-lang="zh"] .hstat .l{letter-spacing:.06em}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-mute);display:flex;flex-direction:column;align-items:center;gap:10px;font-weight:600}
.scroll-hint .ln{width:1px;height:38px;background:linear-gradient(var(--ink-mute),transparent);animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}50.1%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* hero load anim */
.hero-inner>*{opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards}
.hero-inner>*:nth-child(1){animation-delay:.15s}
.hero-inner>*:nth-child(2){animation-delay:.28s}
.hero-inner>*:nth-child(3){animation-delay:.41s}
.hero-inner>*:nth-child(4){animation-delay:.54s}
.hero-inner>*:nth-child(5){animation-delay:.67s}
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}

/* ============ MARQUEE ============ */
.marquee{background:var(--ink);color:var(--linen);padding:18px 0;overflow:hidden;white-space:nowrap;position:relative}
.marquee-track{display:inline-flex;gap:54px;animation:scroll 28s linear infinite;will-change:transform}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-family:var(--serif);font-size:1.05rem;letter-spacing:.03em;display:inline-flex;align-items:center;gap:54px;opacity:.92}
.marquee-track span::after{content:"✦";color:var(--amber-glow);font-size:.7em}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ SECTION SHELL ============ */
section{position:relative}
.section-pad{padding:clamp(80px,11vw,150px) 0}
.shead{max-width:760px;margin-bottom:clamp(44px,6vw,76px)}
.shead h2{font-family:var(--serif);font-weight:360;font-size:clamp(2.1rem,4.6vw,3.7rem);line-height:1.04;letter-spacing:-.015em;margin-top:20px}
html[data-lang="zh"] .shead h2{font-weight:500;line-height:1.18}
.shead h2 em{font-style:italic;color:var(--amber-deep)}
html[data-lang="zh"] .shead h2 em{font-style:normal}
.shead p{font-size:1.05rem;color:var(--ink-soft);margin-top:18px;max-width:600px}

.reveal{opacity:1;transform:none;transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

/* ============ POSITIONING / PILLARS ============ */
.positioning{background:var(--paper)}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:20px;overflow:hidden}
.pillar{position:relative;overflow:hidden;background:linear-gradient(160deg,#faf6ef,#ede2cd);border-radius:28px;padding:34px 28px 38px;transition:transform .4s}
.pillar:hover{transform:translateY(-4px)}
.pillar::before{content:"";position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.45;right:-30px;top:-30px;transition:transform .6s}
.pillar:hover::before{transform:scale(1.25)}
.pillar:nth-child(1){background:linear-gradient(160deg,#faf6ef,#ede2cd)}.pillar:nth-child(1)::before{background:var(--amber-glow)}
.pillar:nth-child(2){background:linear-gradient(160deg,#f5efe4,#e6d7be)}.pillar:nth-child(2)::before{background:var(--clay)}
.pillar:nth-child(3){background:linear-gradient(160deg,#f0efe6,#e2e6d2)}.pillar:nth-child(3)::before{background:var(--sage)}
.pillar:nth-child(4){background:linear-gradient(160deg,#eef2f1,#d8e3e2)}.pillar:nth-child(4)::before{background:var(--mist-deep)}
.pillar .ic{width:46px;height:46px;margin-bottom:24px;color:var(--amber-deep);position:relative;z-index:2}
.pillar h3{font-family:var(--serif);font-size:1.32rem;font-weight:500;margin-bottom:10px;position:relative;z-index:2}
.pillar p{font-size:.92rem;color:var(--ink-mute);position:relative;z-index:2}
.pillar .num{font-family:var(--serif);font-size:.8rem;color:var(--amber-deep);letter-spacing:.1em;position:relative;z-index:2}

/* ============ CAPABILITY / DARK NUMBERS ============ */
.capability{background:var(--midnight);color:var(--linen);overflow:hidden}
.capability .shead h2{color:var(--paper)}
.capability .shead p{color:rgba(240,233,218,.7)}
.cap-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(40px,6vw,90px);align-items:center}
.cap-nums{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.1);border-radius:18px;overflow:hidden}
.cap-num{position:relative;overflow:hidden;background:linear-gradient(160deg,#1e1f2a,#0f1019);padding:34px 30px;transition:transform .4s;color:var(--linen)}
.cap-num:hover{transform:translateY(-4px)}
.cap-num::before{content:"";position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.32;right:-24px;bottom:-24px;background:#5d5a3a;transition:transform .6s}
.cap-num:hover::before{transform:scale(1.25)}
.cap-num .n{font-family:var(--serif);font-size:clamp(2.4rem,4vw,3.4rem);font-weight:400;line-height:1;color:var(--paper);position:relative;z-index:2}
.cap-num .n .u{font-size:.42em;color:var(--amber-glow);margin-left:3px}
.cap-num .l{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(240,233,218,.62);margin-top:12px;font-weight:600;position:relative;z-index:2}
html[data-lang="zh"] .cap-num .l{letter-spacing:.04em}
.cap-copy h3{font-family:var(--serif);font-weight:360;font-size:clamp(1.7rem,2.8vw,2.3rem);line-height:1.2;margin-bottom:22px;color:var(--paper)}
.cap-copy h3 em{font-style:italic;color:var(--amber-glow)}
html[data-lang="zh"] .cap-copy h3 em{font-style:normal}
.cap-copy p{color:rgba(240,233,218,.78);margin-bottom:16px;font-size:1rem}
.material-brands{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.material-brands span{border:1px solid rgba(255,255,255,.2);border-radius:30px;padding:7px 16px;font-size:.82rem;letter-spacing:.04em;font-weight:500}
.material-brands span b{color:var(--amber-glow);font-weight:600}

/* ============ PRODUCTS ============ */
.products{background:var(--linen)}
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:48px}
.cat-tab{
  border:1px solid var(--line);background:transparent;cursor:pointer;font-family:var(--sans);
  font-size:.86rem;font-weight:600;padding:10px 20px;border-radius:30px;transition:all .3s;color:var(--ink-soft);
  display:flex;align-items:center;gap:8px;
}
.cat-tab .c{font-size:.72rem;color:var(--ink-mute)}
.cat-tab.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.cat-tab.active .c{color:var(--amber-glow)}
.cat-tab:not(.active):hover{border-color:var(--ink)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.pcard{
  background:linear-gradient(175deg,var(--paper),rgba(242,235,220,.6));border-radius:20px;overflow:hidden;border:1px solid var(--line-2);
  display:flex;flex-direction:column;transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s;
  position:relative;
}
.pcard::before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;filter:blur(48px);opacity:.28;right:-18px;top:40%;transition:transform .6s,opacity .4s;z-index:0}
.pcard:hover::before{transform:scale(1.3);opacity:.42}
.pcard[data-cat="sleep"]::before{background:var(--amber-glow)}
.pcard[data-cat="travel"]::before{background:var(--mist-deep)}
.pcard[data-cat="lumbar"]::before{background:var(--sage)}
.pcard:hover{transform:translateY(-6px);box-shadow:0 24px 50px -32px rgba(28,25,23,.35)}
.pcard.hide{display:none}
.foam{
  height:200px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;
  background:linear-gradient(160deg,var(--linen),var(--linen-2));
}
.foam.has-photo{
  height:220px;align-items:stretch;justify-content:stretch;background:var(--paper);
  box-shadow:inset 0 0 0 1px var(--line-2);
}
.foam.has-photo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(247,242,232,.55),rgba(247,242,232,0) 28%,rgba(16,17,25,.08));
  z-index:1;
}
.product-photo{
  width:100%;height:100%;object-fit:cover;object-position:center;display:block;
  transition:transform .5s cubic-bezier(.2,.8,.2,1),filter .35s;
}
.foam .shape{
  width:60%;aspect-ratio:1.5/1;
  border-radius:46% 54% 58% 42%/56% 50% 50% 44%;
  background:radial-gradient(circle at 36% 30%,var(--amber-glow),var(--clay) 78%);
  box-shadow:inset -16px -22px 44px rgba(110,55,8,.26),inset 12px 14px 32px rgba(255,228,186,.6),0 24px 40px -24px rgba(120,60,10,.5);
  transition:border-radius .7s cubic-bezier(.2,.8,.2,1),transform .5s;
}
.foam.cool .shape{background:radial-gradient(circle at 38% 32%,#fff,var(--mist) 80%);box-shadow:inset -14px -18px 40px rgba(110,140,141,.32),inset 10px 12px 28px #fff,0 24px 40px -24px rgba(115,142,140,.35)}
.foam.ink .shape{background:radial-gradient(circle at 38% 30%,var(--midnight-3),var(--midnight));box-shadow:inset -14px -18px 40px rgba(0,0,0,.35),inset 10px 12px 28px rgba(120,125,140,.25),0 24px 40px -24px rgba(0,0,0,.3)}
.pcard:hover .foam .shape{border-radius:54% 46% 42% 58%/46% 58% 42% 54%;transform:scale(.94) translateY(4px)}
.pcard:hover .foam.has-photo .product-photo{transform:scale(1.04)}
.foam .model{position:absolute;top:14px;right:16px;font-family:var(--serif);font-size:.74rem;letter-spacing:.14em;color:var(--ink-mute);font-weight:500;z-index:2}
.foam .patent{position:absolute;top:14px;left:16px;font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;background:var(--ink);color:var(--paper);padding:4px 9px;border-radius:20px;z-index:2}
.foam.has-photo .model{background:rgba(247,242,232,.86);color:var(--ink);padding:4px 9px;border-radius:20px;box-shadow:0 8px 18px -14px rgba(28,25,23,.35)}
.foam .patent.util{background:var(--amber-deep)}
.pbody{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.pbody .ptag{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-deep);font-weight:700;margin-bottom:9px}
.pbody h3{font-family:var(--serif);font-size:1.34rem;font-weight:500;line-height:1.1;margin-bottom:4px}
.pbody .en2{font-size:.86rem;color:var(--ink-mute);margin-bottom:16px;font-style:italic;font-family:var(--serif)}
html[data-lang="zh"] .pbody .en2{font-style:normal}
.pspecs{display:flex;flex-direction:column;gap:7px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line-2)}
.pspec{display:flex;justify-content:space-between;gap:14px;font-size:.82rem}
.pspec .k{color:var(--ink-mute)}
.pspec .v{font-weight:600;text-align:right}
.pcard .pfoot{display:flex;align-items:center;justify-content:space-between;margin-top:18px}
.pcard .moq{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-mute);font-weight:600}
.pcard .moq b{color:var(--ink);font-family:var(--serif);font-size:1.04rem;font-weight:600}
.pcard .quote{font-size:.82rem;font-weight:600;color:var(--amber-deep);display:inline-flex;align-items:center;gap:6px;transition:gap .3s}
.pcard:hover .quote{gap:11px}
.product-photo-link{display:block;width:100%;height:100%;color:inherit}
.pbody h3 a{color:inherit;transition:color .25s}
.pbody h3 a:hover{color:var(--amber-deep)}

/* ============ PRODUCT DETAIL ============ */
.product-detail-hero{
  padding:132px 0 clamp(60px,8vw,96px);
  background:
    radial-gradient(92% 78% at 84% 16%,rgba(224,164,81,.22),transparent 58%),
    radial-gradient(70% 68% at 6% 90%,rgba(191,208,209,.38),transparent 62%),
    linear-gradient(160deg,var(--paper),var(--linen));
}
.detail-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.88fr);gap:clamp(36px,5vw,72px);align-items:center;margin-top:28px}
.detail-copy h1{font-family:var(--serif);font-size:clamp(3rem,7vw,6.6rem);font-weight:360;line-height:.96;letter-spacing:-.02em;margin:16px 0 22px}
.detail-copy h1 em{font-style:italic;color:var(--amber-deep)}
html[data-lang="zh"] .detail-copy h1 em{font-style:normal}
.detail-copy .lead{font-size:clamp(1rem,1.4vw,1.2rem);color:var(--ink-soft);line-height:1.72;max-width:660px}
.detail-tags{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 10px}
.detail-tags span{border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--ink-soft);font-size:.82rem;font-weight:700;letter-spacing:.04em;background:rgba(255,255,255,.32)}
.detail-media{display:grid;gap:16px}
.detail-main-photo{
  background:var(--paper);border:1px solid var(--line-2);border-radius:28px;overflow:hidden;
  box-shadow:0 32px 64px -48px rgba(28,25,23,.35);position:relative;
}
.detail-main-photo::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(247,242,232,.28),rgba(247,242,232,0) 42%,rgba(16,17,25,.08))}
.detail-main-photo img{width:100%;height:clamp(430px,52vw,760px);object-fit:cover;object-position:center 45%;display:block}
.detail-mini-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--line-2);border-radius:18px;overflow:hidden;background:var(--line-2)}
.detail-mini-specs div{background:rgba(255,255,255,.5);padding:16px 14px}
.detail-mini-specs span{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-mute);font-weight:700;margin-bottom:5px}
.detail-mini-specs b{font-family:var(--serif);font-size:1rem;font-weight:600;color:var(--ink)}
.detail-gallery-section{background:var(--paper)}
.detail-photo-mosaic{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(18px,2.6vw,32px);align-items:stretch}
.detail-life-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(14px,1.6vw,22px)}
.detail-life-shot{
  position:relative;margin:0;background:var(--linen);border:1px solid var(--line-2);border-radius:20px;overflow:hidden;
  box-shadow:0 20px 46px -38px rgba(28,25,23,.3);
}
.detail-life-shot img{width:100%;height:100%;min-height:260px;object-fit:cover;object-position:center;display:block}
.detail-life-shot-main img{aspect-ratio:4/5;min-height:620px}
.detail-life-grid .detail-life-shot img{aspect-ratio:4/3}
.detail-life-shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(180deg,rgba(16,17,25,0),rgba(16,17,25,.72));color:var(--paper);
}
.detail-life-shot figcaption b{display:block;font-family:var(--serif);font-size:1.05rem;font-weight:600}
.detail-life-shot figcaption span{display:block;color:rgba(240,233,218,.78);font-size:.86rem;line-height:1.55;margin-top:6px}
.detail-section{background:var(--paper)}
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:20px;overflow:hidden}
.scenario-card{background:var(--linen);padding:30px 26px;min-height:230px}
.scenario-card span{font-family:var(--serif);font-size:1.8rem;color:var(--amber-deep);line-height:1}
.scenario-card h3{font-family:var(--serif);font-size:1.28rem;font-weight:600;margin:20px 0 10px}
.scenario-card p{color:var(--ink-soft);font-size:.94rem;line-height:1.65}
.detail-support-map{display:grid;grid-template-columns:.78fr 1.22fr;gap:clamp(28px,4vw,56px);align-items:center;margin-top:clamp(36px,5vw,64px)}
.support-map-copy h3{font-family:var(--serif);font-size:clamp(1.8rem,3.2vw,2.8rem);font-weight:420;line-height:1.08;margin-bottom:14px}
.support-map-copy p{color:var(--ink-soft);line-height:1.72;max-width:520px}
.support-map-list{list-style:none;display:grid;gap:10px;margin-top:22px}
.support-map-list li{position:relative;padding:14px 18px 14px 38px;color:var(--ink);font-size:.95rem;font-weight:500;background:rgba(255,255,255,.42);border:1px solid var(--line-2);border-radius:14px;transition:background .25s,border-color .25s}
.support-map-list li:hover{background:rgba(255,255,255,.7);border-color:var(--amber-deep)}
.support-map-list li::before{content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--amber-deep)}
.detail-diagram-card{margin:0;border:1px solid var(--line-2);border-radius:22px;background:rgba(255,255,255,.48);padding:clamp(16px,2.4vw,28px);box-shadow:0 20px 46px -38px rgba(28,25,23,.3)}
.detail-diagram-card img{width:100%;height:auto;object-fit:contain;border-radius:16px;background:#fff}
.detail-support-map + .detail-diagram-card{margin-top:clamp(18px,2.5vw,28px)}
.detail-diagram-card figcaption{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-top:14px;color:var(--ink-soft);font-size:.88rem;line-height:1.55}
.detail-diagram-card figcaption b{font-family:var(--serif);font-size:1.04rem;font-weight:600;color:var(--ink)}
.detail-diagram-card figcaption span{max-width:560px}
.spec-band{background:var(--ink);color:var(--linen)}
.detail-split{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(32px,5vw,70px);align-items:start}
.detail-panel h2{font-family:var(--serif);font-size:clamp(2.1rem,4.8vw,4.4rem);font-weight:360;line-height:1.04;color:var(--paper);margin:12px 0 18px}
.detail-panel p{color:rgba(240,233,218,.72);line-height:1.72}
.detail-callout{margin-top:28px;border:1px solid rgba(224,164,81,.36);border-radius:18px;padding:20px 22px;background:rgba(224,164,81,.08)}
.detail-callout b{display:block;color:var(--amber-glow);font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:8px}
.detail-callout span{font-family:var(--serif);font-size:1.45rem;color:var(--paper)}
.detail-table-wrap{border:1px solid rgba(255,255,255,.12);border-radius:22px;overflow:hidden;background:rgba(255,255,255,.05)}
.detail-table{width:100%;border-collapse:collapse;font-size:.95rem}
.detail-table th,.detail-table td{padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1);vertical-align:top;text-align:left}
.detail-table tr:last-child th,.detail-table tr:last-child td{border-bottom:none}
.detail-table th{width:34%;color:rgba(240,233,218,.55);font-weight:700;letter-spacing:.03em}
.detail-table td{color:var(--paper);font-weight:500}
.detail-sampling-section{
  background:
    radial-gradient(64% 70% at 92% 4%,rgba(224,164,81,.16),transparent 58%),
    linear-gradient(180deg,var(--paper),var(--linen));
}
.detail-sampling-head{max-width:860px}
.detail-sampling-head p{max-width:720px}
.detail-oem-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.detail-oem-grid .oem-card{
  position:relative;display:flex;flex-direction:column;min-height:360px;padding:28px 24px 24px;
  border:1px solid var(--line-2);border-radius:20px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.58),rgba(240,233,218,.82));
  box-shadow:0 22px 48px -40px rgba(28,25,23,.3);
}
.detail-oem-grid .oem-card::before{
  content:"";position:absolute;inset:0 0 auto;height:4px;
  background:linear-gradient(90deg,var(--amber-deep),var(--amber-glow));
}
.detail-oem-grid .oem-card span{
  width:42px;height:42px;border-radius:999px;display:grid;place-items:center;
  background:var(--ink);color:var(--paper);font-family:var(--serif);font-size:.92rem;
  box-shadow:0 12px 24px -20px rgba(28,25,23,.4);
}
.detail-oem-grid .oem-card h3{font-family:var(--serif);font-size:1.28rem;font-weight:600;line-height:1.18;margin:22px 0 10px}
.detail-oem-grid .oem-card p{color:var(--ink-soft);font-size:.92rem;line-height:1.62;margin-bottom:18px}
.sample-points{list-style:none;margin-top:auto;display:grid;gap:10px}
.sample-points li{position:relative;padding-left:18px;color:var(--ink);font-size:.86rem;line-height:1.48}
.sample-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--amber-deep);box-shadow:0 0 0 4px rgba(194,130,58,.13);
}

/* ============ MATERIAL SCIENCE ============ */
.science{background:var(--paper)}
.mat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(18px,2vw,26px)}
.mat{position:relative;border-radius:20px;padding:38px 34px;overflow:hidden;border:1px solid var(--line-2);min-height:230px;display:flex;flex-direction:column;justify-content:space-between;transition:transform .4s}
.mat:hover{transform:translateY(-5px)}
.mat .mglow{position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.5;right:-30px;top:-30px;transition:transform .6s}
.mat:hover .mglow{transform:scale(1.25)}
.mat.gel{background:linear-gradient(160deg,#eef4f4,#dde9ea)}
.mat.gel .mglow{background:var(--mist-deep)}
.mat.bamboo{background:linear-gradient(160deg,#1c1d24,#0e0f15);color:var(--linen)}
.mat.bamboo .mglow{background:#3c5448}
.mat.copper{background:linear-gradient(160deg,#f3e6d6,#ecd9c0)}
.mat.copper .mglow{background:var(--clay)}
.mat.bio{background:linear-gradient(160deg,#1c2118,#11150e);color:var(--linen)}
.mat.bio .mglow{background:#5d7a3a}
.mat .mtop{position:relative;z-index:2}
.mat .pct{font-family:var(--serif);font-size:2.6rem;font-weight:400;line-height:1;letter-spacing:-.02em}
.mat .pct .u{font-size:.4em;opacity:.6}
.mat h3{font-family:var(--serif);font-size:1.4rem;font-weight:500;margin:20px 0 8px;position:relative;z-index:2}
.mat p{font-size:.9rem;opacity:.82;position:relative;z-index:2;max-width:90%}
.fabrics{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.fabric{flex:1;min-width:220px;background:var(--linen);border-radius:16px;padding:24px 26px;border:1px solid var(--line-2)}
.fabric h4{font-family:var(--serif);font-size:1.16rem;font-weight:500;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.fabric h4 .dot{width:11px;height:11px;border-radius:50%;flex:none}
.fabric p{font-size:.86rem;color:var(--ink-mute)}

/* ============ SO WHAT ============ */
.sowhat{background:var(--midnight);color:var(--linen);overflow:hidden}
.sw-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid rgba(255,255,255,.13);border-radius:22px;overflow:hidden}
.sw-col{padding:clamp(34px,5vw,60px)}
.sw-col.feat{position:relative;overflow:hidden;background:linear-gradient(160deg,#1e1f2a,#11131c)}
.sw-col.feat::before{content:"";position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.22;right:-30px;bottom:-30px;background:#5d6532;transition:transform .6s}
.sw-col.feat:hover::before{transform:scale(1.25)}
.sw-col.benf{position:relative;overflow:hidden;background:linear-gradient(160deg,#1c1f18,#0f110c)}
.sw-col.benf::before{content:"";position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.28;left:-30px;top:-30px;background:var(--amber-glow);transition:transform .6s}
.sw-col.benf:hover::before{transform:scale(1.25)}
.sw-label{font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;font-weight:700;margin-bottom:30px;color:rgba(240,233,218,.5);position:relative;z-index:2}
.sw-col.benf .sw-label{color:var(--amber-glow)}
.sw-item{padding:20px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:1.02rem;position:relative;z-index:2}
.sw-item:last-child{border-bottom:none}
.sw-col.feat .sw-item{color:rgba(240,233,218,.72)}
.sw-col.benf .sw-item{color:var(--linen);font-family:var(--serif);font-size:1.12rem;line-height:1.4}
.sw-col.benf .sw-item b{color:var(--amber-glow);font-weight:600;position:relative;z-index:2}

/* ============ GLOBAL ============ */
.globalsec{background:var(--linen)}
.gmarkets{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:20px;overflow:hidden}
.gmarket{position:relative;overflow:hidden;padding:32px 28px;transition:transform .4s}
.gmarket:hover{transform:translateY(-4px)}
.gmarket::before{content:"";position:absolute;width:160px;height:160px;border-radius:50%;filter:blur(44px);opacity:.38;right:-22px;bottom:-22px;transition:transform .6s}
.gmarket:hover::before{transform:scale(1.3)}
.gmarket:nth-child(1){background:linear-gradient(160deg,#fdf8f0,#f0e0c6)}.gmarket:nth-child(1)::before{background:var(--amber-glow)}
.gmarket:nth-child(2){background:linear-gradient(160deg,#f8f2ea,#ebd9c2)}.gmarket:nth-child(2)::before{background:var(--clay)}
.gmarket:nth-child(3){background:linear-gradient(160deg,#f0f2f0,#dee6e4)}.gmarket:nth-child(3)::before{background:var(--mist-deep)}
.gmarket:nth-child(4){background:linear-gradient(160deg,#f2f3ed,#e2e8d4)}.gmarket:nth-child(4)::before{background:var(--sage)}
.gmarket .reg{font-family:var(--serif);font-size:1.3rem;font-weight:500;margin-bottom:6px;position:relative;z-index:2}
.gmarket .share{font-family:var(--serif);font-size:2.4rem;font-weight:400;color:var(--amber-deep);line-height:1;letter-spacing:-.02em;position:relative;z-index:2}
.gmarket .share .u{font-size:.4em;color:var(--ink-mute)}
.gmarket .desc{font-size:.84rem;color:var(--ink-mute);margin-top:14px;position:relative;z-index:2}

/* ============ OEM PORTAL ============ */
.oem{background:var(--midnight);color:var(--linen);overflow:hidden;position:relative}
.oem::before{content:"";position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(194,130,58,.2),transparent 70%);top:-200px;right:-150px;pointer-events:none}
.oem .shead h2{color:var(--paper)}
.oem .shead h2 em{color:var(--amber-glow)}
.oem .shead p{color:rgba(240,233,218,.72)}
.oem-mods{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:20px;overflow:hidden;margin-bottom:clamp(40px,6vw,72px)}
.omod{position:relative;overflow:hidden;background:linear-gradient(160deg,#1c1d28,#0d0e17);padding:38px 36px;transition:transform .4s;color:var(--linen)}
.omod:hover{transform:translateY(-4px)}
.omod::before{content:"";position:absolute;width:200px;height:200px;border-radius:50%;filter:blur(50px);opacity:.3;right:-22px;top:-22px;background:var(--amber-glow);transition:transform .6s}
.omod:hover::before{transform:scale(1.25)}
.omod .no{font-family:var(--serif);font-size:.86rem;color:var(--amber-glow);letter-spacing:.1em;margin-bottom:18px;position:relative;z-index:2}
.omod h3{font-family:var(--serif);font-size:1.5rem;font-weight:500;margin-bottom:12px;color:var(--paper);position:relative;z-index:2}
.omod p{color:rgba(240,233,218,.74);font-size:.94rem;position:relative;z-index:2}
/* process timeline */
.proc-h{font-family:var(--serif);font-size:1.5rem;font-weight:400;color:var(--paper);margin-bottom:34px;text-align:center}
.proc{display:flex;gap:0;overflow-x:auto;padding-bottom:10px;scrollbar-width:thin}
.pstep{flex:1;min-width:130px;position:relative;padding:0 6px;text-align:center}
.pstep .dot{width:16px;height:16px;border-radius:50%;background:var(--amber-glow);margin:0 auto 18px;position:relative;z-index:2;box-shadow:0 0 0 5px rgba(194,130,58,.18)}
.pstep::before{content:"";position:absolute;top:8px;left:-50%;width:100%;height:2px;background:rgba(255,255,255,.18);z-index:1}
.pstep:first-child::before{display:none}
.pstep .pn{font-family:var(--serif);font-size:.78rem;color:var(--amber-glow);margin-bottom:6px}
.pstep h4{font-size:.92rem;font-weight:600;color:var(--paper);line-height:1.25}
.pstep p{font-size:.74rem;color:rgba(240,233,218,.55);margin-top:5px}

/* ============ CERTS ============ */
.certs{background:var(--paper)}
.cert-row{display:flex;flex-wrap:wrap;gap:14px}
.cert{
  flex:1;min-width:150px;border:1px solid var(--line);border-radius:16px;padding:26px 24px;
  display:flex;flex-direction:column;gap:8px;transition:all .35s;background:var(--linen)
}
.cert:hover{border-color:var(--amber-deep);transform:translateY(-4px)}
.cert .cb{width:40px;height:40px;border-radius:10px;background:var(--ink);color:var(--amber-glow);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:600;font-size:1.1rem}
.cert h4{font-size:.98rem;font-weight:700;letter-spacing:.01em}
.cert p{font-size:.8rem;color:var(--ink-mute)}
.cert.soft{opacity:.92}
.cert.soft .cb{background:var(--amber-deep);color:var(--paper)}
.cert-note{font-size:.82rem;color:var(--ink-mute);margin-top:20px;font-style:italic}
html[data-lang="zh"] .cert-note{font-style:normal}

/* ============ FORM ============ */
.contact{background:linear-gradient(165deg,var(--midnight),#0b0c12);color:var(--linen);overflow:hidden;position:relative}
.contact .blob-c{position:absolute;width:420px;height:420px;border-radius:46% 54% 58% 42%/52% 44% 56% 48%;background:radial-gradient(circle at 36% 30%,var(--amber-glow),var(--amber-deep) 72%);filter:blur(8px);opacity:.5;right:-120px;bottom:-120px;animation:morph 18s ease-in-out infinite}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(40px,6vw,90px);align-items:start;position:relative;z-index:2}
.contact .shead h2{color:var(--paper)}
.contact .shead h2 em{color:var(--amber-glow)}
.c-left p{color:rgba(240,233,218,.78);font-size:1.05rem;margin-bottom:30px;max-width:380px}
.c-promise{display:flex;flex-direction:column;gap:18px;margin-top:34px}
.c-promise .pr{display:flex;gap:16px;align-items:flex-start}
.c-promise .pr .ck{color:var(--amber-glow);flex:none;margin-top:2px}
.c-promise .pr h4{font-size:.98rem;font-weight:600;color:var(--paper);margin-bottom:3px}
.c-promise .pr p{font-size:.86rem;color:rgba(240,233,218,.6);margin:0}
form{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:clamp(28px,4vw,42px)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:rgba(240,233,218,.62)}
.field input,.field select,.field textarea{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);border-radius:11px;
  padding:13px 15px;color:var(--paper);font-family:var(--sans);font-size:.94rem;transition:border .25s,background .25s;width:100%;
}
.field textarea{resize:vertical;min-height:90px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber-glow);background:rgba(255,255,255,.09)}
.field select option{background:var(--midnight-2)}
.field input::placeholder,.field textarea::placeholder{color:rgba(240,233,218,.55)}
form .btn-amber{background:var(--amber);color:var(--ink);width:100%;justify-content:center;margin-top:8px;padding:15px;font-size:.95rem}
form .btn-amber:hover{background:var(--amber-glow)}
.form-note{font-size:.76rem;color:rgba(240,233,218,.5);text-align:center;margin-top:14px}

/* ============ FOOTER ============ */
footer{background:var(--ink);color:var(--linen);padding:clamp(64px,8vw,100px) 0 36px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:60px}
.foot-brand .brand{color:var(--paper);margin-bottom:20px}
.foot-brand .brand span{color:rgba(240,233,218,.55)}
.foot-brand p{color:rgba(240,233,218,.6);font-size:.9rem;max-width:300px}
.foot-brand .addr{margin-top:20px;font-size:.86rem;color:rgba(240,233,218,.72);line-height:1.7}
.foot-brand .addr b{color:var(--amber-glow);font-weight:600;display:block;font-family:var(--serif);font-size:.94rem;margin-bottom:4px}
.fcol h5{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-glow);margin-bottom:20px;font-weight:700}
.fcol a{display:block;color:rgba(240,233,218,.68);font-size:.9rem;padding:6px 0;transition:color .25s,padding-left .25s}
.fcol a:hover{color:var(--paper);padding-left:5px}
.foot-bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:30px;border-top:1px solid rgba(255,255,255,.12);font-size:.82rem;color:rgba(240,233,218,.5)}
.foot-bot .seo{max-width:640px;line-height:1.6}

/* ============ RESPONSIVE ============ */
@media(max-width:1040px){
  .pillars,.gmarkets{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .detail-hero-grid,.detail-split,.detail-photo-mosaic,.detail-support-map{grid-template-columns:1fr}
  .scenario-grid,.detail-oem-grid{grid-template-columns:repeat(2,1fr)}
  .cap-grid,.contact-grid{grid-template-columns:1fr;gap:48px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:760px){
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--paper);padding:24px clamp(20px,5vw,64px);gap:18px;box-shadow:0 16px 32px -20px rgba(28,25,23,.2);border-top:1px solid var(--line-2)}
  .nav-links.open a{padding:12px 0;display:block}
  .nav-toggle{display:flex;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:10px;min-width:44px;min-height:44px;align-items:center;justify-content:center}
  .nav-toggle span{width:24px;height:2px;background:var(--ink);transition:.3s}
  nav .btn-amber{display:none}
  .prod-grid,.mat-grid,.sw-grid,.oem-mods{grid-template-columns:1fr}
  .product-detail-hero{padding:112px 0 58px}
  .detail-copy h1{font-size:clamp(2.6rem,15vw,4.2rem)}
  .detail-mini-specs,.scenario-grid,.detail-oem-grid,.detail-life-grid{grid-template-columns:1fr}
  .detail-life-shot-main img,.detail-life-shot img{min-height:260px;aspect-ratio:4/3}
  .detail-diagram-card figcaption{display:block}
  .detail-diagram-card figcaption span{display:block;margin-top:6px}
  .detail-table th,.detail-table td{display:block;width:100%;padding:13px 16px}
  .detail-table th{padding-bottom:3px;border-bottom:none}
  .detail-table td{padding-top:3px}
  .pillars,.gmarkets,.cap-nums{grid-template-columns:1fr 1fr}
  .frow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .sw-grid{border-radius:18px}
  .hero-stats{gap:24px}
}

/* ============ MULTI-PAGE SEO STRUCTURE ============ */
.nav-links a.active{opacity:1;color:var(--ink)}
.nav-links a.active::after{width:100%}
.subhero{
  min-height:58vh;display:flex;align-items:center;padding:132px 0 76px;position:relative;
  background:
    radial-gradient(90% 80% at 88% 14%,rgba(224,164,81,.24),transparent 58%),
    radial-gradient(72% 70% at 8% 88%,rgba(191,208,209,.38),transparent 62%),
    linear-gradient(165deg,var(--paper),var(--linen-2));
  overflow:hidden;
}
.subhero.dark{
  background:
    radial-gradient(90% 80% at 84% 16%,rgba(194,130,58,.24),transparent 60%),
    linear-gradient(165deg,var(--midnight),var(--midnight-2));
  color:var(--linen);
}
.subhero.dark .eyebrow{color:var(--amber-glow)}
.subhero.dark p{color:rgba(240,233,218,.76)}
.subhero.dark .breadcrumbs{color:rgba(240,233,218,.58)}
.subhero .wrap{position:relative;z-index:2}
.subhero .blob{position:absolute;border-radius:42% 58% 56% 44%/48% 42% 58% 52%;filter:blur(.5px);z-index:0;opacity:.7;animation:morph 16s ease-in-out infinite}
.subhero .blob-1{width:min(28vw,340px);aspect-ratio:1;right:-2%;top:12%;background:radial-gradient(circle at 35% 30%,var(--amber-glow),var(--clay) 70%,var(--amber-deep));box-shadow:inset -30px -40px 80px rgba(110,55,8,.3),inset 24px 30px 70px rgba(255,225,180,.55),0 50px 120px -40px rgba(139,90,30,.35)}
.subhero .blob-2{width:min(14vw,180px);aspect-ratio:1;right:28%;top:8%;background:radial-gradient(circle at 40% 35%,#fff,var(--mist) 75%);box-shadow:inset -14px -18px 40px rgba(115,142,140,.35),inset 10px 12px 30px #fff;animation-duration:13s;animation-delay:-4s;opacity:.6}
.subhero.dark .blob{position:absolute;border-radius:42% 58% 56% 44%/48% 42% 58% 52%;filter:blur(.5px);z-index:0;opacity:.5;animation:morph 16s ease-in-out infinite}
.subhero.dark .blob-1{width:min(26vw,320px);aspect-ratio:1;left:60%;top:10%;background:radial-gradient(circle at 35% 30%,rgba(224,164,81,.35),rgba(139,90,30,.22) 70%,rgba(156,97,31,.15));box-shadow:inset -20px -30px 60px rgba(212,147,63,.12),0 40px 100px -30px rgba(212,147,63,.18)}
.subhero h1{
  font-family:var(--serif);font-weight:350;font-size:clamp(2.5rem,6vw,5.2rem);
  line-height:1.02;letter-spacing:-.015em;margin:22px 0 0;max-width:920px;
}
html[data-lang="zh"] .subhero h1{font-weight:500;line-height:1.16;letter-spacing:0}
.subhero h1 em{font-style:italic;color:var(--amber-deep)}
.subhero.dark h1 em{color:var(--amber-glow)}
html[data-lang="zh"] .subhero h1 em{font-style:normal}
.subhero p{font-size:clamp(1rem,1.5vw,1.18rem);max-width:680px;color:var(--ink-soft);margin-top:24px}
.breadcrumbs{font-size:.76rem;color:var(--ink-mute);margin-bottom:20px;font-weight:600}
.breadcrumbs a{border-bottom:1px solid currentColor}
.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:20px;overflow:hidden}
.route-card{background:var(--paper);padding:34px 30px;display:flex;flex-direction:column;min-height:260px;transition:background .35s,transform .35s}
.route-card:hover{background:var(--linen);transform:translateY(-2px)}
.route-card .num{font-family:var(--serif);font-size:.82rem;color:var(--amber-deep);letter-spacing:.12em;margin-bottom:28px}
.route-card h3{font-family:var(--serif);font-size:1.45rem;font-weight:500;line-height:1.12;margin-bottom:12px}
.route-card p{font-size:.92rem;color:var(--ink-mute);margin-bottom:26px}
.route-card a{margin-top:auto;font-size:.88rem;font-weight:700;color:var(--amber-deep)}
.seo-copy{background:var(--paper)}
.copy-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,6vw,84px);align-items:start}
.copy-grid h2,.copy-grid h3{font-family:var(--serif);font-weight:400;line-height:1.12}
.copy-grid h2{font-size:clamp(2rem,4vw,3.2rem)}
.copy-grid h3{font-size:clamp(1.5rem,2.8vw,2.2rem)}
.copy-grid p{color:var(--ink-soft);margin-bottom:16px}
.copy-list{display:grid;gap:14px;margin-top:22px}
.copy-list li{list-style:none;border-top:1px solid var(--line-2);padding-top:14px;color:var(--ink-soft)}
.copy-list b{color:var(--ink);font-weight:700}
.mini-products .prod-grid{margin-top:34px}
.inline-cta{
  background:var(--ink);color:var(--linen);padding:clamp(56px,7vw,88px) 0;
}
.inline-cta .cta-row{display:grid;grid-template-columns:1.2fr auto;gap:32px;align-items:center}
.inline-cta h2{font-family:var(--serif);font-size:clamp(2rem,4vw,3.3rem);font-weight:380;line-height:1.08;color:var(--paper)}
.inline-cta p{color:rgba(240,233,218,.72);max-width:620px;margin-top:14px}
.inline-cta .btn-amber{background:var(--amber);color:var(--ink)}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:20px;overflow:hidden;margin-top:36px}
.metric-strip .metric{position:relative;overflow:hidden;background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));padding:28px;transition:transform .4s}
.metric-strip .metric:hover{transform:translateY(-4px)}
.metric-strip .metric::before{content:"";position:absolute;width:160px;height:160px;border-radius:50%;filter:blur(44px);opacity:.25;right:-20px;bottom:-20px;background:var(--amber-glow);transition:transform .6s}
.metric-strip .metric:hover::before{transform:scale(1.3)}
.metric .value{font-family:var(--serif);font-size:2.2rem;color:var(--amber-glow);line-height:1;position:relative;z-index:2}
.metric .label{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(240,233,218,.62);margin-top:10px;font-weight:700;position:relative;z-index:2}
.factory-scenes{background:var(--paper)}
.factory-photo-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(18px,2.4vw,30px);align-items:stretch}
.factory-photo{
  margin:0;background:var(--linen);border:1px solid var(--line-2);border-radius:20px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 22px 48px -40px rgba(28,25,23,.28);
}
.factory-photo img{
  width:100%;height:100%;min-height:320px;aspect-ratio:16/10;object-fit:cover;object-position:center;
}
.factory-photo:first-child img{aspect-ratio:16/9}
.factory-photo figcaption{padding:22px 24px 24px;display:grid;gap:8px}
.factory-photo b{font-family:var(--serif);font-size:1.18rem;font-weight:600;color:var(--ink)}
.factory-photo span{color:var(--ink-soft);font-size:.95rem;line-height:1.6}
.text-band{background:var(--linen)}
.two-col-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:20px;overflow:hidden}
.note-card{background:var(--paper);padding:34px 30px}
.note-card h3{font-family:var(--serif);font-size:1.35rem;font-weight:500;margin-bottom:10px}
.note-card p{color:var(--ink-mute);font-size:.94rem}

/* ============ FAQ ============ */
.faq{background:var(--linen)}
.faq-list{display:grid;gap:14px;max-width:880px;margin-top:4px}
.faq-item{background:var(--paper);border:1px solid var(--line-2);border-radius:16px;overflow:hidden;transition:border-color .3s,box-shadow .3s}
.faq-item[open]{border-color:var(--amber-deep);box-shadow:0 14px 32px -24px rgba(28,25,23,.3)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:23px 28px;font-family:var(--serif);font-size:1.12rem;font-weight:500;
  display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--sans);font-size:1.55rem;color:var(--amber-deep);flex:none;transition:transform .3s;line-height:1}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 28px 24px;color:var(--ink-soft);font-size:.96rem;line-height:1.72;max-width:780px}
.faq-item .faq-a b{color:var(--ink);font-weight:600}

/* ============ COMPARISON TABLE ============ */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line-2);border-radius:18px;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;border-collapse:collapse;min-width:640px;background:var(--paper);font-size:.92rem}
.cmp-table caption{text-align:left;padding:18px 22px;color:var(--ink-mute);font-size:.82rem;letter-spacing:.04em}
.cmp-table th,.cmp-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top}
.cmp-table thead th{font-family:var(--serif);font-size:1rem;font-weight:600;color:var(--ink);background:var(--linen)}
.cmp-table tbody th{font-weight:600;color:var(--ink);white-space:nowrap}
.cmp-table tbody tr:last-child td,.cmp-table tbody tr:last-child th{border-bottom:none}
.cmp-table .hl{color:var(--amber-deep);font-weight:600}
.cmp-table tbody tr:hover{background:var(--linen)}

/* ============ GLOSSARY ============ */
.glossary{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:18px;overflow:hidden;margin-top:8px}
.gloss-item{background:var(--paper);padding:26px 28px}
.gloss-item dt{font-family:var(--serif);font-size:1.12rem;font-weight:600;margin-bottom:7px;color:var(--ink)}
.gloss-item dd{font-size:.92rem;color:var(--ink-soft);line-height:1.6}
@media(max-width:760px){.glossary{grid-template-columns:1fr}}

/* ============ BLOG / ARTICLE ============ */
.post-meta{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-deep);font-weight:700;margin-bottom:12px}
.route-card .post-meta{margin-bottom:14px}
.article-body{max-width:768px;margin:0 auto}
.prose>p:first-of-type{font-size:1.16rem;color:var(--ink-soft);line-height:1.7}
.prose h2{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.1rem);font-weight:500;margin:46px 0 14px;line-height:1.2}
.prose h3{font-family:var(--serif);font-size:1.24rem;font-weight:600;margin:30px 0 10px}
.prose p{color:var(--ink-soft);margin:0 0 18px;font-size:1.04rem;line-height:1.75}
.prose ul{margin:0 0 20px;padding:0;list-style:none;display:grid;gap:11px}
.prose li{position:relative;padding-left:26px;color:var(--ink-soft);line-height:1.65}
.prose li::before{content:"";position:absolute;left:3px;top:10px;width:7px;height:7px;border-radius:50%;background:var(--amber-deep)}
.prose b,.prose strong{color:var(--ink);font-weight:600}
.prose blockquote{border-left:3px solid var(--amber-deep);padding:4px 0 4px 22px;margin:26px 0;font-family:var(--serif);font-style:italic;font-size:1.18rem;color:var(--ink);line-height:1.5}
html[data-lang="zh"] .prose blockquote{font-style:normal}
.takeaways{background:var(--paper);border:1px solid var(--line-2);border-radius:18px;padding:28px 32px;margin:38px 0 8px}
.takeaways h3{font-family:var(--serif);font-size:1.15rem;font-weight:600;margin:0 0 14px}
.article-cta{margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
.article-cta h3{font-family:var(--serif);font-size:1.4rem;font-weight:500;margin-bottom:8px}
.article-cta p{color:var(--ink-mute);margin-bottom:18px}
.related{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.related a{font-size:.88rem;font-weight:600;color:var(--amber-deep);border:1px solid var(--line);border-radius:30px;padding:9px 17px;transition:border-color .25s,background .25s}
.related a:hover{border-color:var(--amber-deep);background:var(--paper)}
.site-logo-file{display:none}
.eyebrow-glow{color:var(--amber-glow)}
.eyebrow-mist{--amber-deep:var(--mist-deep)}
.eyebrow-green{color:#7faf8e}
.eyebrow-lime{color:#9fc06a}
.paper-heading{color:var(--paper)}
.contact-heading{margin-bottom:24px}
.view-more{margin-top:34px}
.delay-08{--d:.08s}
.delay-1{--d:.1s}
.delay-12{--d:.12s}
.delay-16{--d:.16s}
.dot.mist-dot{background:var(--mist-deep)}
.dot.milk-dot{background:#f0e6d4;border:1px solid var(--line)}
.dot.clay-dot{background:var(--clay)}
.term-heading{margin-top:clamp(48px,6vw,76px)}
@media(max-width:1040px){
  .route-grid{grid-template-columns:1fr 1fr}
  .metric-strip{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .subhero{min-height:auto;padding:112px 0 64px}
  .route-grid,.copy-grid,.two-col-notes,.inline-cta .cta-row,.factory-photo-grid{grid-template-columns:1fr}
  .route-card{min-height:auto}
  .metric-strip{grid-template-columns:1fr}
  .factory-photo img{min-height:240px;aspect-ratio:4/3}
}