/* CHENMEI — static site stylesheet (no external dependencies) */
:root{
  --ink:#12171d; --ink-2:#39424c; --muted:#6d7883; --line:#e4e1db;
  --paper:#ffffff; --soft:#f7f5f1; --soft-2:#efece5;
  --accent:#b8592f; --accent-ink:#8d3f1f; --steel:#22414f;
  --radius:14px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(18,23,29,.04), 0 12px 32px -18px rgba(18,23,29,.28);
  --shadow-lg:0 2px 6px rgba(18,23,29,.05), 0 34px 60px -30px rgba(18,23,29,.35);
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Noto Sans SC","Noto Sans Thai","Noto Sans Arabic","Noto Naskh Arabic",sans-serif;
  --font-serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC","Times New Roman",serif;
  --wrap:1180px; --pad:clamp(18px,4vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);color:var(--ink);background:var(--paper);
  font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;line-height:1.14;letter-spacing:-.012em}
h1{font-size:clamp(2.05rem,4.3vw,3.45rem);text-wrap:balance}
/* Chinese headlines read better broken at the comma: put the accent clause on its own line */
html[lang|="zh"] .hero__copy h1 em{display:block}
h2{font-size:clamp(1.6rem,2.8vw,2.4rem);text-wrap:balance}
h3{font-size:clamp(1.12rem,1.5vw,1.32rem);letter-spacing:-.005em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.74rem;font-weight:650;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-family:var(--font-sans)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.55;flex:none}
.lede{font-size:clamp(1rem,1.35vw,1.12rem);color:var(--ink-2);line-height:1.7}
.muted{color:var(--muted)}
.section{padding-block:clamp(56px,7vw,104px)}
.section--soft{background:var(--soft)}
.section-head{max-width:720px}
.section-head h2{margin-top:14px}
.section-head .lede{margin-top:16px}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center .eyebrow::before{display:none}
.stack-24>*+*{margin-top:24px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 22px;border-radius:999px;font-size:.94rem;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn svg{width:17px;height:17px;flex:none}
.btn--sm svg{width:15px;height:15px}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(184,89,47,.75)}
.btn--primary:hover{background:var(--accent-ink)}
.btn--ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn--light{background:#fff;color:var(--ink)}
.btn--onDark{border-color:rgba(255,255,255,.32);color:#fff}
.btn--onDark:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn--sm{padding:9px 16px;font-size:.85rem}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,36px);height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand__mark{width:38px;height:38px;flex:none}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__name{font-family:var(--font-serif);font-size:1.16rem;font-weight:700;letter-spacing:.06em}
.brand__sub{font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.nav__links{display:flex;align-items:center;gap:clamp(6px,1.4vw,22px);margin-inline-start:auto}
.nav__link{padding:9px 4px;font-size:.92rem;font-weight:520;color:var(--ink-2);position:relative}
.nav__link::after{content:"";position:absolute;inset-inline:4px;bottom:2px;height:1.5px;
  background:var(--accent);transform:scaleX(0);transform-origin:inline-start;transition:transform .22s ease}
.nav__link:hover::after,.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--ink);font-weight:620}
.nav__actions{display:flex;align-items:center;gap:10px;flex:none}

/* language switcher */
.lang{position:relative}
.lang>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border:1px solid var(--line);border-radius:999px;font-size:.84rem;font-weight:560;
  background:#fff;color:var(--ink-2);transition:border-color .18s}
.lang>summary::-webkit-details-marker{display:none}
.lang>summary:hover{border-color:var(--ink)}
.lang__globe{width:15px;height:15px;opacity:.7}
.lang__menu{position:absolute;top:calc(100% + 8px);inset-inline-end:0;z-index:70;min-width:250px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:8px;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.lang__menu a{display:flex;flex-direction:column;padding:7px 10px;border-radius:7px;font-size:.85rem;line-height:1.3}
.lang__menu a:hover{background:var(--soft)}
.lang__menu a span{font-size:.68rem;color:var(--muted);letter-spacing:.04em}
.lang__menu a[aria-current="true"]{background:var(--soft-2);font-weight:640}
.nav__toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav__toggle span{display:block;width:17px;height:1.6px;background:var(--ink);position:relative}
.nav__toggle span::before,.nav__toggle span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--ink)}
.nav__toggle span::before{top:-5.5px}.nav__toggle span::after{top:5.5px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--soft);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:stretch;min-height:min(74vh,660px)}
.hero__copy{padding-block:clamp(40px,6vw,84px);padding-inline-end:clamp(20px,4vw,56px);display:flex;flex-direction:column;justify-content:center}
.hero h1{margin-top:18px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero__sub{margin-top:20px;max-width:33em}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero__note{margin-top:20px;font-size:.82rem;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hero__note b{color:var(--ink-2);font-weight:620}
.hero__media{position:relative;min-height:320px}
.hero__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;filter:contrast(1.04) saturate(1.02)}
.hero__media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(247,245,241,.96) 0%,rgba(247,245,241,.55) 12%,rgba(247,245,241,0) 34%)}
.hero__badge{position:absolute;inset-inline-end:22px;bottom:22px;z-index:2;background:rgba(18,23,29,.82);
  color:#fff;padding:11px 15px;border-radius:11px;font-size:.76rem;line-height:1.45;backdrop-filter:blur(6px);max-width:250px}
.hero__badge b{display:block;font-size:.86rem;letter-spacing:.02em}

/* stats */
.stats{background:var(--ink);color:#fff}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12)}
.stat{background:var(--ink);padding:26px clamp(14px,2vw,28px)}
.stat__v{font-family:var(--font-serif);font-size:clamp(1.5rem,2.4vw,2.05rem);line-height:1.1;letter-spacing:-.01em}
.stat__l{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.62);margin-top:8px}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.value{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.value__n{font-family:var(--font-serif);font-size:.9rem;color:var(--accent);letter-spacing:.08em}
.value h3{margin-top:12px}
.value p{margin-top:9px;font-size:.93rem;color:var(--ink-2);line-height:1.62}

/* product lines */
.lines{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(12px,1.6vw,20px)}
.line{display:grid;overflow:hidden;border-radius:var(--radius);min-height:250px;background:#1b222a}
.line--wide{grid-column:span 3;min-height:340px}
.line--half{grid-column:span 3;min-height:280px}
.line--third{grid-column:span 2;min-height:270px}
.line img{grid-area:1/1;width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.line:hover img{transform:scale(1.045)}
.line::after{content:"";grid-area:1/1;z-index:1;
  background:linear-gradient(to top,rgba(11,15,19,.88) 0%,rgba(11,15,19,.46) 44%,rgba(11,15,19,.06) 78%)}
.line__body{grid-area:1/1;align-self:end;z-index:2;padding:clamp(16px,2vw,24px);color:#fff}
.line__body h3{color:#fff;font-size:1.14rem}
.line__body p{margin-top:7px;font-size:.86rem;color:rgba(255,255,255,.8);line-height:1.55;max-width:34em}
.line__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.line__tags span{font-size:.7rem;padding:3px 9px;border-radius:999px;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.18);letter-spacing:.02em}

/* studio variant: white-background product photos need a light stage, not a dark scrim */
.line--studio{background:#fff;border:1px solid var(--line)}
.line--studio img{object-fit:contain;padding:20px 20px 92px;filter:contrast(1.02)}
.line--studio::after{background:linear-gradient(to top,rgba(255,255,255,.99) 0%,rgba(255,255,255,.9) 28%,rgba(255,255,255,0) 58%)}
.line--studio .line__body{color:var(--ink)}
.line--studio .line__body h3{color:var(--ink)}
.line--studio .line__body p{color:var(--ink-2)}
.line--studio .line__tags span{background:#fff;border-color:#dcd8d0;color:var(--ink-2)}

/* products page media */
.pg-media{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--soft)}
.pg-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1}

/* capability */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(24px,4vw,60px);align-items:center}
.cap{display:grid;gap:0;margin-top:8px}
.cap__row{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:baseline;
  padding-block:15px;border-top:1px solid var(--line)}
.cap__row:last-child{border-bottom:1px solid var(--line)}
.cap__k{font-family:var(--font-serif);font-size:1.02rem;min-width:6.4em;color:var(--ink)}
.cap__v{font-size:.92rem;color:var(--ink-2);line-height:1.55}
.media-stack{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.media-stack img{border-radius:var(--radius-sm);width:100%;height:100%;object-fit:cover}
.media-stack img:first-child{grid-column:span 2;aspect-ratio:4/3}
.media-stack img{aspect-ratio:1/1}

/* process */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(10px,1.6vw,22px);counter-reset:s}
.step{position:relative;padding-top:34px}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:0;inset-inline-start:0;
  width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:.78rem;
  display:grid;place-items:center;font-weight:640;font-family:var(--font-sans)}
.step::after{content:"";position:absolute;top:14px;inset-inline-start:34px;inset-inline-end:-14px;height:1px;background:var(--line)}
.step:last-child::after{display:none}
.step h3{font-size:1rem;margin-top:12px}
.step p{margin-top:6px;font-size:.85rem;color:var(--ink-2);line-height:1.55}

/* certificate trio */
.certs{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,22px)}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;gap:16px;align-items:flex-start}
.cert__ico{width:42px;height:42px;flex:none;border-radius:10px;background:var(--soft-2);display:grid;place-items:center}
.cert__ico svg{width:21px;height:21px}
.cert h3{font-size:.98rem}
.cert p{margin-top:5px;font-size:.82rem;color:var(--muted);line-height:1.5}
.doc-shot{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;padding:10px}
.doc-shot img{width:100%;height:190px;object-fit:contain;object-position:top}
.doc-shot figcaption{font-size:.76rem;color:var(--muted);padding:8px 4px 2px;text-align:center}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery figure{margin:0;position:relative;border-radius:var(--radius-sm);overflow:hidden;background:var(--soft-2)}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.gallery figcaption{position:absolute;inset-inline:0;bottom:0;padding:16px 12px 9px;font-size:.72rem;color:#fff;
  background:linear-gradient(to top,rgba(11,15,19,.78),rgba(11,15,19,0))}
.gallery figure:first-child{grid-column:span 2;grid-row:span 2}
.gallery figure:first-child img{aspect-ratio:4/3.1}

/* table */
.table{width:100%;border-collapse:collapse;font-size:.9rem;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.table caption{caption-side:top;text-align:start;font-size:.8rem;color:var(--muted);padding-bottom:10px}
.table th,.table td{padding:13px 16px;text-align:start;border-bottom:1px solid var(--line);vertical-align:top}
.table th{background:var(--soft);font-size:.76rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-2);font-weight:640}
.table tr:last-child td{border-bottom:0}
.table td:first-child{font-weight:600;color:var(--ink)}

/* CTA band */
.cta-band{background:var(--steel);color:#fff;border-radius:var(--radius);padding:clamp(28px,4vw,52px);
  display:flex;align-items:center;justify-content:space-between;gap:clamp(18px,3vw,44px);flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:22em}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.76);font-size:.94rem;max-width:36em}
.cta-band__actions{display:flex;gap:11px;flex-wrap:wrap}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(24px,4vw,56px);align-items:start}
.channels{display:grid;gap:10px;margin-top:26px}
.channel{display:flex;align-items:center;gap:14px;padding:15px 17px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);transition:border-color .18s,transform .18s}
a.channel:hover{border-color:var(--ink);transform:translateY(-1px)}
.channel__ico{width:34px;height:34px;border-radius:9px;background:var(--soft-2);display:grid;place-items:center;flex:none}
.channel__ico svg{width:17px;height:17px}
.channel__k{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.channel__v{font-size:.95rem;font-weight:600;word-break:break-word}
.channel--pending{opacity:.62;border-style:dashed}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,3vw,32px);box-shadow:var(--shadow)}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:span 2}
.field label{font-size:.78rem;font-weight:620;letter-spacing:.04em;color:var(--ink-2)}
.field input,.field select,.field textarea{font:inherit;font-size:.92rem;padding:11px 13px;border:1px solid var(--line);
  border-radius:9px;background:#fff;color:var(--ink);transition:border-color .16s,box-shadow .16s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(184,89,47,.13)}
.field textarea{min-height:118px;resize:vertical}
.form__note{font-size:.76rem;color:var(--muted);margin-top:12px;line-height:1.5}

/* page hero (inner pages) */
.page-hero{background:var(--soft);border-bottom:1px solid var(--line);padding-block:clamp(38px,5vw,68px)}
.page-hero h1{margin-top:14px;max-width:22em}
.page-hero .lede{margin-top:16px;max-width:44em}

/* prose */
.prose p+p{margin-top:14px}
.prose p{color:var(--ink-2);line-height:1.72}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding-block:clamp(44px,5vw,68px) 26px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:clamp(22px,3vw,44px)}
.site-footer .brand__name{color:#fff}
.site-footer .brand__sub{color:rgba(255,255,255,.5)}
.site-footer h4{font-size:.74rem;letter-spacing:.13em;text-transform:uppercase;color:rgba(255,255,255,.48);
  font-family:var(--font-sans);font-weight:640;margin-bottom:14px}
.site-footer a:hover{color:#fff}
.site-footer li+li{margin-top:9px}
.site-footer li{font-size:.9rem}
.footer__about p{margin-top:16px;font-size:.87rem;line-height:1.65;max-width:30em;color:rgba(255,255,255,.6)}
.footer__bottom{margin-top:clamp(30px,4vw,50px);padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.78rem;color:rgba(255,255,255,.48)}
.footer__langs{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}
.footer__langs a{font-size:.78rem;color:rgba(255,255,255,.55)}
.footer__langs a[aria-current="true"]{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* sticky mobile CTA */
.mobile-cta{display:none}

/* No scroll/entrance animation: a transform animation on a card creates a
   compositing layer that can defer painting of its absolutely-positioned
   <img> in real browsers too. Static paint is faster and never hides content. */
.reveal{/* intentionally static */}

/* RTL tweaks */
[dir="rtl"] .step::after{inset-inline-start:auto;inset-inline-end:-14px}
[dir="rtl"] .hero__media::after{background:linear-gradient(270deg,rgba(247,245,241,.96) 0%,rgba(247,245,241,.55) 12%,rgba(247,245,241,0) 34%)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .lines{grid-template-columns:repeat(4,1fr)}
  .line--wide,.line--half{grid-column:span 2}
  .line--third{grid-column:span 2}
  .steps{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .step:nth-child(3)::after{display:none}
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .nav__links{display:none}
  .nav__toggle{display:inline-flex}
  .nav{height:66px;gap:10px}
  .nav__actions{gap:8px}
  /* the sticky bottom bar carries the primary CTA on small screens */
  .nav__actions .btn--primary{display:none}
  .brand__sub{display:none}
  .hero__copy{padding-inline-end:var(--pad)!important}
  .hero__grid{grid-template-columns:1fr;min-height:0}
  .hero__media{min-height:300px;order:-1}
  .hero__media::after{background:linear-gradient(to top,rgba(247,245,241,.96) 0%,rgba(247,245,241,0) 42%)}
  .hero__copy{padding-block:32px 42px}
  .split,.contact-grid{grid-template-columns:1fr}
  .grid--3{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:1fr 1fr}
  .certs{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .mobile-cta{display:flex;position:fixed;inset-inline:0;bottom:0;z-index:55;gap:9px;padding:10px 14px;
    background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line)}
  .mobile-cta .btn{flex:1}
  body{padding-bottom:64px}
  .site-footer{padding-bottom:26px}
}
@media (max-width:680px){
  .grid--2{grid-template-columns:1fr}
  .form__grid{grid-template-columns:1fr}
  .field--full{grid-column:span 1}
  .steps{grid-template-columns:1fr 1fr}
  .step::after{display:none}
  .gallery{grid-template-columns:1fr 1fr}
  .gallery figure:first-child{grid-column:span 2;grid-row:auto}
  .lines{grid-template-columns:1fr 1fr}
  .line--wide,.line--half,.line--third{grid-column:span 2;min-height:230px}
  .doc-shot img{height:150px}
  .lang__menu{min-width:210px}
  .footer__bottom{flex-direction:column}
}
/* very narrow handsets (<=360px): keep the header on one line without scroll */
@media (max-width:360px){
  .nav{gap:8px}
  .brand__name{font-size:1.02rem;letter-spacing:.03em}
  .nav__actions{gap:6px}
  .lang>summary{padding-inline:8px;font-size:.8rem}
  .lang__globe{display:none}
}
@media (max-width:430px){
  body{font-size:16px}
  .lines{grid-template-columns:1fr}
  .line--wide,.line--half,.line--third{grid-column:span 1}
  .stats__grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}