:root{
  --primary:#8C4A2F;
  --primary-dark:#6B3722;
  --primary-light:#F3E4DC;
  --secondary:#4F7A5E;
  --secondary-dark:#3A5C46;
  --secondary-light:#E4EDE7;
  --neutral:#C9BCAE;
  --card-border:#E7DFD1;
  --text:#2E2620;
  --text-secondary:#6B5D51;
  --bg:#F5F1E8;
  --card-bg:#FFFFFF;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

/* ---------- i18n ---------- */
html[data-lang="zh"] .lang-en{display:none}
html[data-lang="en"] .lang-zh{display:none}
html[data-lang="en"] body{font-family:'Public Sans','Noto Sans TC',sans-serif}
html[data-lang="en"] h1,html[data-lang="en"] h2,html[data-lang="en"] h3{font-family:'Space Grotesk',sans-serif}

body{
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans TC','Public Sans',sans-serif;
  font-weight:400;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3{
  font-family:'Space Grotesk','Noto Sans TC',sans-serif;
  font-weight:500;
  line-height:1.2;
  color:var(--text);
  letter-spacing:-0.01em;
}

h1{font-size:56px}
h2{font-size:34px}
h3{font-size:20px}
h4{font-size:16px;font-family:'Space Grotesk','Noto Sans TC',sans-serif;font-weight:500}
.body-small{font-size:14px}
.caption{font-size:12px;color:var(--text-secondary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:12px;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary)}

a{color:inherit;text-decoration:none}

img,svg{display:block}

.wrap{max-width:1240px;margin:0 auto;padding:0 32px}

section{padding:72px 0}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in-view{opacity:1;transform:translateY(0)}
.reveal-stagger.in-view > *{opacity:1;transform:translateY(0)}
.reveal-stagger > *{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal-stagger.in-view > *:nth-child(1){transition-delay:.05s}
.reveal-stagger.in-view > *:nth-child(2){transition-delay:.15s}
.reveal-stagger.in-view > *:nth-child(3){transition-delay:.25s}
.reveal-stagger.in-view > *:nth-child(4){transition-delay:.35s}
.reveal-stagger.in-view > *:nth-child(5){transition-delay:.45s}
.reveal-stagger.in-view > *:nth-child(6){transition-delay:.55s}
.reveal-stagger.in-view > *:nth-child(7){transition-delay:.65s}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,241,232,0.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s,box-shadow .3s;
}
header.scrolled{
  border-bottom-color:var(--card-border);
  box-shadow:0 4px 24px rgba(46,38,32,0.06);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;
}
.logo{flex-shrink:0}
.logo img{height:30px;width:auto;max-width:100%;transition:opacity .2s}
.logo:hover img{opacity:0.8}
.nav-links{display:flex;gap:32px;font-size:14px;font-weight:500;letter-spacing:0.01em}
.nav-links a{
  color:var(--text);position:relative;padding:4px 0;
}
.nav-links a.current{color:var(--primary)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:var(--primary);transition:width .25s var(--ease);
}
.nav-links a.current::after{width:100%}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{width:100%}
/* ---------- Nav dropdown (Products quick-jump) ---------- */
.nav-dropdown{position:relative}
.nav-dropdown-trigger{display:flex;align-items:center;gap:4px}
.nav-dropdown-caret{width:11px;height:11px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .2s var(--ease)}
.nav-dropdown:hover .nav-dropdown-caret{transform:rotate(180deg)}
.nav-dropdown-menu{
  position:absolute;top:100%;left:50%;padding-top:14px;transform:translateX(-50%);
  width:230px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),visibility .2s;
  z-index:50;
}
.nav-dropdown-menu-inner{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;
  box-shadow:0 20px 40px -12px rgba(46,38,32,0.25);
  padding:8px;
}
.nav-dropdown:hover .nav-dropdown-menu{
  opacity:1;visibility:visible;pointer-events:auto;
}
.nav-dropdown-menu a{
  display:block;padding:9px 14px;border-radius:8px;font-size:13.5px;color:var(--text);font-weight:400;
  transition:background-color .15s,color .15s;
}
.nav-dropdown-menu a::after{display:none}
.nav-dropdown-menu a:hover{background:var(--bg);color:var(--primary)}

.nav-cta{display:flex;align-items:center;gap:16px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.menu-toggle svg{width:24px;height:24px;stroke:var(--text)}

/* ---------- Language switcher ---------- */
.lang-switch{
  display:flex;align-items:center;background:var(--card-bg);
  border:1px solid var(--card-border);border-radius:20px;padding:3px;
}
.lang-switch button{
  border:none;background:none;cursor:pointer;font-family:'Space Grotesk',sans-serif;
  font-size:12px;font-weight:600;letter-spacing:0.02em;
  padding:6px 13px;border-radius:16px;color:var(--text-secondary);
  transition:background-color .2s,color .2s;
}
.lang-switch button.active{background:var(--primary);color:#FFFFFF}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:6px;
  font-size:15px;font-weight:500;
  cursor:pointer;border:none;
  transition:background-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#FFFFFF;box-shadow:0 1px 2px rgba(46,38,32,0.08)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px -8px rgba(107,55,34,0.55)}
.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--neutral)}
.btn-secondary:hover{background:var(--card-bg);border-color:var(--text);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}

/* ---------- Hero (homepage, full photo) ---------- */
.hero{
  position:relative;
  padding:100px 0 64px;
  background:
    linear-gradient(180deg,rgba(46,38,32,0.66) 0%,rgba(46,38,32,0.42) 45%,rgba(46,38,32,0.78) 100%),
    url('images/hero.jpg') center 30%/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(140,74,47,0.25),transparent 70%);
  pointer-events:none;
}
.hero .wrap{max-width:860px;text-align:center;position:relative;z-index:1}
.hero .eyebrow{color:#F3E4DC}
.hero .eyebrow::before{background:#F3E4DC}
.hero h1{margin-bottom:24px;color:#FFFFFF;text-wrap:balance}
.hero p{font-size:19px;color:rgba(255,255,255,0.9);margin-bottom:40px;max-width:640px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero .btn-secondary{background:rgba(255,255,255,0.06);color:#FFFFFF;border-color:rgba(255,255,255,0.4);backdrop-filter:blur(4px)}
.hero .btn-secondary:hover{background:rgba(255,255,255,0.16);border-color:rgba(255,255,255,0.7)}
.scroll-cue{
  position:absolute;bottom:36px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:rgba(255,255,255,0.7);font-size:11px;letter-spacing:0.1em;
  animation:bob 2.4s ease-in-out infinite;z-index:1;
}
.scroll-cue svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- Page hero (inner pages, no photo) ---------- */
.page-hero{
  background:var(--text);color:#FFFFFF;
  padding:88px 0 56px;text-align:center;
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 60% at 50% 0%,rgba(140,74,47,0.22),transparent 70%);
  pointer-events:none;
}
.page-hero.photo{
  --hero-photo:url('images/cert-hero.jpg');
  background:
    linear-gradient(180deg,rgba(46,38,32,0.62) 0%,rgba(46,38,32,0.5) 45%,rgba(46,38,32,0.8) 100%),
    var(--hero-photo) center 40%/cover no-repeat;
  padding:120px 0 72px;
}
.page-hero .wrap{max-width:760px;position:relative;z-index:1}
.page-hero .eyebrow{color:#F3E4DC;justify-content:center;display:flex}
.page-hero .eyebrow::before{background:#F3E4DC}
.page-hero h1{color:#FFFFFF;margin-bottom:16px;text-wrap:balance}
.page-hero h1.tight{font-size:44px}
.page-hero p{color:rgba(255,255,255,0.75);font-size:17px}
.page-hero .hero-actions{margin-top:32px;position:relative;z-index:1}

/* ---------- Page hero split (video/visual left, text right) ---------- */
.page-hero.split{padding:64px 0;text-align:left}
.page-hero.split .wrap{
  max-width:1240px;position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:56px;align-items:center;
}
.page-hero.split .eyebrow{justify-content:flex-start}
.page-hero.split h1{text-wrap:balance}
.hero-split-visual{
  border-radius:12px;overflow:hidden;aspect-ratio:16/10;
  background:#000;box-shadow:0 24px 48px -20px rgba(0,0,0,0.5);
}
.hero-split-visual video{width:100%;height:100%;object-fit:cover;display:block}
.hero-split-visual iframe{width:100%;height:100%;border:0;display:block}
@media (max-width:960px){
  .page-hero.split .wrap{grid-template-columns:1fr;text-align:center;gap:32px}
  .page-hero.split .eyebrow{justify-content:center}
  .page-hero.split{padding:56px 0}
}
.page-hero .btn-secondary{background:rgba(255,255,255,0.06);color:#FFFFFF;border-color:rgba(255,255,255,0.4);backdrop-filter:blur(4px)}
.page-hero .btn-secondary:hover{background:rgba(255,255,255,0.16);border-color:rgba(255,255,255,0.7)}

/* ---------- Stats band ---------- */
.stats{
  position:relative;color:#FFFFFF;padding:0;
  background:
    linear-gradient(120deg, rgba(107,55,34,0.9) 0%, rgba(58,92,70,0.88) 100%),
    url('images/diff-visual.jpg') center 35%/cover no-repeat;
}
.stats .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);
  position:relative;z-index:1;
}
.stat{
  padding:36px 24px;text-align:center;
  border-left:1px solid rgba(255,255,255,0.18);
}
.stat:first-child{border-left:none}
.stat strong{
  display:block;font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:40px;color:#FFFFFF;margin-bottom:8px;letter-spacing:-0.01em;
}
.stat span{font-size:13px;color:rgba(255,255,255,0.65);letter-spacing:0.01em}

/* ---------- Differentiators (homepage) ---------- */
.diff-split{
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:64px;align-items:center;
}
.diff-visual{
  width:100%;aspect-ratio:4/3;border-radius:12px;overflow:hidden;position:relative;
}
.diff-visual img{width:100%;height:100%;object-fit:cover;object-position:center 20%}
.diff-list{display:flex;flex-direction:column}
.diff-row{
  display:flex;gap:20px;padding:28px 0;border-bottom:1px solid var(--card-border);
  transition:transform .3s var(--ease);
}
.diff-row:first-child{padding-top:0}
.diff-row:last-child{padding-bottom:0;border-bottom:none}
.diff-row:hover{transform:translateX(6px)}
.diff-icon{
  width:48px;height:48px;border-radius:12px;flex-shrink:0;
  background:var(--secondary-light);
  display:flex;align-items:center;justify-content:center;
}
.diff-icon svg{width:22px;height:22px;stroke:var(--secondary-dark);fill:none;stroke-width:1.8}
.diff-row h3{margin-bottom:8px}
.diff-row p{font-size:14px;color:var(--text-secondary)}

/* ---------- Section heading ---------- */
.section-head{max-width:640px;margin:0 auto 36px}
.section-head.center{text-align:center}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--text-secondary);font-size:16px}

/* ---------- Legal content (privacy policy) ---------- */
.legal-content{max-width:760px;margin:0 auto}
.legal-content .legal-updated{color:var(--text-secondary);font-size:13.5px;margin-bottom:8px}
.legal-content .legal-notice{background:var(--primary-light);border:1px solid var(--card-border);border-radius:12px;padding:18px 20px;font-size:13.5px;color:var(--text);line-height:1.7;margin-bottom:44px}
.legal-content .legal-notice strong{color:var(--primary-dark)}
.legal-block{margin-bottom:34px}
.legal-block h2{font-size:20px;margin-bottom:10px}
.legal-block h3{font-size:15px;color:var(--primary-dark);margin:14px 0 6px}
.legal-block p{font-size:14.5px;color:var(--text-secondary);line-height:1.8;margin-bottom:10px}
.legal-block ul{margin:0 0 10px;padding-left:20px}
.legal-block li{font-size:14.5px;color:var(--text-secondary);line-height:1.8;margin-bottom:4px}
.legal-block strong{color:var(--text)}
.legal-toc{display:flex;flex-wrap:wrap;gap:8px 16px;list-style:none;padding:0;margin:0 0 40px;font-size:13px}
.legal-toc a{color:var(--text-secondary)}
.legal-toc a:hover{color:var(--primary)}

/* ---------- Products ---------- */
.product-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.product-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.product-card{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;
  overflow:hidden;transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
  scroll-margin-top:90px;
}
.product-card.jump-highlight{border-color:var(--primary);box-shadow:0 0 0 3px rgba(140,74,47,0.18)}
.product-card:hover{transform:translateY(-6px);border-color:var(--primary);box-shadow:0 20px 40px -20px rgba(46,38,32,0.25)}
.product-thumb{
  aspect-ratio:4/3;
  background:linear-gradient(135deg,var(--secondary-light),var(--primary-light));
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;position:relative;
}
.product-thumb img{width:100%;height:100%;object-fit:contain;padding:20px;transition:transform .5s var(--ease)}
.product-card:hover .product-thumb img{transform:scale(1.08)}
.product-tag{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,0.92);color:var(--secondary-dark);
  font-size:11px;font-weight:600;letter-spacing:0.04em;
  padding:5px 12px;border-radius:20px;
}
.product-body{padding:22px}
.product-body h3{margin-bottom:6px;font-size:17px}
.product-body p{font-size:14px;color:var(--text-secondary);margin-bottom:12px}
.product-badges{display:flex;flex-wrap:wrap;gap:6px}
.product-badges span{
  font-size:11px;font-weight:500;color:var(--secondary-dark);background:var(--secondary-light);
  border:1px solid var(--secondary);padding:3px 10px;border-radius:20px;
}
.product-badges span.none{color:var(--text-secondary);background:transparent;border-color:var(--card-border)}
.see-all{text-align:center;margin-top:40px}
.see-all a{
  color:var(--primary);font-weight:500;font-size:15px;
  display:inline-flex;align-items:center;gap:6px;
}
.see-all a svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .25s var(--ease)}
.see-all a:hover svg{transform:translateX(4px)}
.see-all a:hover{color:var(--primary-dark)}

/* ---------- Certification bar (summary strip) ---------- */
.cert-section{
  background:var(--card-bg);
  border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border);
  position:relative;
}
.cert-text{text-align:center;max-width:600px;margin:0 auto 36px;color:var(--text-secondary);font-size:16px}
.cert-badges{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--secondary-light);border:1px solid var(--secondary);
  color:var(--secondary-dark);
  padding:10px 20px;border-radius:20px;
  font-size:14px;font-weight:500;
  transition:transform .25s var(--ease),background-color .25s var(--ease);
}
.badge:hover{transform:translateY(-3px);background:var(--secondary);color:#FFFFFF}
.badge:hover svg{stroke:#FFFFFF}
.badge svg{width:14px;height:14px;stroke:var(--secondary-dark);fill:none;stroke-width:2;transition:stroke .25s}

/* ---------- Certification detail cards (certifications page) ---------- */
.cert-detail-list{max-width:980px;margin:0 auto;display:flex;flex-direction:column;gap:24px}
.cert-detail-card{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;align-items:stretch;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.cert-detail-card:hover{border-color:var(--secondary);box-shadow:0 20px 40px -24px rgba(46,38,32,0.25)}
.cert-detail-card[id]{scroll-margin-top:90px}
.cert-detail-card.three-col{grid-template-columns:0.75fr 1.5fr 0.75fr}
.cert-detail-card.three-col .cert-detail-body{border-left:1px solid var(--card-border);border-right:1px solid var(--card-border)}
.cert-detail-image{position:relative;overflow:hidden;background:var(--bg);min-height:260px;padding:16px;border-right:1px solid var(--card-border)}
.cert-detail-card.three-col .cert-detail-image{border-right:none}
.cert-detail-image img{width:100%;height:100%;object-fit:contain}
.cert-image-grid{display:grid;grid-template-rows:1fr 1fr;border-right:1px solid var(--card-border)}
.cert-image-grid .cert-detail-image{border-right:none}
.cert-image-grid .cert-detail-image:first-child{border-bottom:1px solid var(--card-border)}
.cert-image-caption{position:absolute;bottom:8px;left:0;right:0;text-align:center;font-size:11px;color:var(--text-secondary);background:rgba(245,241,232,0.85);padding:4px 8px;border-radius:20px;margin:0 12px}
.cert-detail-body{padding:24px}
.cert-detail-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:4px}
.cert-detail-icon{
  width:40px;height:40px;border-radius:10px;flex-shrink:0;
  background:var(--secondary-light);display:flex;align-items:center;justify-content:center;
}
.cert-detail-icon svg{width:18px;height:18px;stroke:var(--secondary-dark);fill:none;stroke-width:1.8}
.cert-detail-full-name{font-size:12px;color:var(--text-secondary);margin-bottom:12px}
.cert-detail-summary{font-size:13.5px;color:var(--text);margin-bottom:16px}
.cert-why-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.cert-why-col{background:var(--bg);border-radius:8px;padding:14px}
.cert-why-col h4{font-size:11px;color:var(--secondary-dark);margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}
.cert-why-col p{font-size:12.5px;color:var(--text-secondary)}
.cert-status{
  font-size:12px;color:var(--text-secondary);border-top:1px solid var(--card-border);
  padding-top:14px;margin-top:4px;line-height:1.7;
}
.cert-status strong{color:var(--text);font-weight:500}
.cert-warning{
  font-size:12px;color:var(--primary-dark);background:var(--primary-light);
  border-radius:8px;padding:12px 16px;margin-top:14px;
}
.cert-intro-banner{
  max-width:820px;margin:0 auto 40px;background:var(--secondary-light);border:1px solid var(--secondary);
  border-radius:12px;padding:18px 24px;text-align:center;font-size:14px;color:var(--secondary-dark);
}

/* ---------- Number highlights (about page) ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;
  padding:28px 20px;text-align:center;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.stat-card:hover{transform:translateY(-6px);border-color:var(--primary)}
.stat-card strong{
  display:block;font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:40px;color:var(--primary);margin-bottom:10px;letter-spacing:-0.01em;
}
.stat-card span{font-size:13px;color:var(--text-secondary);line-height:1.6}

/* ---------- Timeline (about page) ---------- */
.timeline{max-width:680px;margin:0 auto}
.timeline-item{
  display:grid;grid-template-columns:96px 1fr;gap:24px;position:relative;padding-bottom:36px;
}
.timeline-item::before{
  content:"";position:absolute;left:108px;top:6px;bottom:-30px;width:1px;background:var(--card-border);
}
.timeline-item:last-child::before{display:none}
.timeline-item::after{
  content:"";position:absolute;left:104px;top:4px;width:9px;height:9px;border-radius:50%;background:var(--primary);
}
.timeline-year{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:20px;color:var(--primary);text-align:right;
}
.timeline-content{font-size:15px;color:var(--text-secondary);padding-top:2px}

/* ---------- Audience segments ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.audience-card{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;
  padding:32px;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.audience-card:hover{transform:translateY(-6px);border-color:var(--primary)}
.audience-icon{
  width:44px;height:44px;border-radius:10px;
  background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.audience-icon svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8}
.audience-card h3{margin-bottom:10px}
.audience-card p{font-size:14px;color:var(--text-secondary);flex-grow:1;margin-bottom:24px}

/* ---------- Contact page banner animation ---------- */
.contact-banner{
  --cb-ink:#4B4948;--cb-teal:#23B8BC;--cb-teal-900:#0E4C50;--cb-teal-700:#157F83;
  position:relative;width:100%;aspect-ratio:1920/400;min-height:220px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(120deg,var(--cb-teal-900) 0%,var(--cb-teal-700) 38%,var(--cb-teal) 72%,#2FCBCF 100%);
  background-size:140% 140%;background-position:0% 50%;
  animation:cbDriftGradient 18s ease-in-out infinite;
}
@keyframes cbDriftGradient{0%,100%{background-position:0% 50%}50%{background-position:60% 50%}}
.contact-banner-spotlight{
  position:absolute;left:50%;top:50%;width:min(85vw,1150px);height:280%;transform:translate(-50%,-50%);
  background:radial-gradient(ellipse at center,rgba(255,255,255,0.97) 0%,rgba(255,255,255,0.9) 42%,rgba(255,255,255,0.55) 62%,rgba(255,255,255,0) 82%);
  opacity:0;animation:cbSpotFadeIn 900ms ease-out 80ms forwards,cbSpotPulse 7s ease-in-out 1200ms infinite;pointer-events:none;
}
@keyframes cbSpotFadeIn{to{opacity:1}}
@keyframes cbSpotPulse{0%,100%{opacity:1}50%{opacity:0.88}}
.contact-banner-lockup{position:relative;z-index:2;display:flex;align-items:center;gap:clamp(18px,2.4vw,32px);padding:0 clamp(20px,4vw,60px)}
.contact-banner-icon{width:clamp(74px,8.5vw,132px);height:clamp(74px,8.5vw,132px);flex-shrink:0;opacity:0;transform:scale(0.9);animation:cbMarkIn 700ms cubic-bezier(0.16,0.8,0.28,1) 150ms forwards}
.contact-banner-icon img{width:100%;height:100%;display:block}
@keyframes cbMarkIn{from{opacity:0;transform:scale(0.9)}to{opacity:1;transform:scale(1)}}
.contact-banner-divider{width:1.5px;height:clamp(46px,5.6vw,78px);background:linear-gradient(to bottom,transparent,var(--cb-ink),transparent);opacity:0.55;transform:scaleY(0);transform-origin:center;animation:cbLineDraw 560ms ease-out 520ms forwards}
@keyframes cbLineDraw{to{transform:scaleY(1)}}
.contact-banner-text-stack{display:flex;flex-direction:column;justify-content:center;gap:clamp(6px,1vw,12px)}
.contact-banner-cn{width:clamp(150px,15.5vw,232px);opacity:0;transform:translateY(10px);animation:cbFadeUp 520ms cubic-bezier(0.22,0.61,0.36,1) 640ms forwards}
.contact-banner-cn img{width:100%;display:block}
.contact-banner-en{width:clamp(140px,14.8vw,222px);opacity:0;transform:translateY(8px);filter:blur(2px);animation:cbFadeUpBlur 520ms ease-out 880ms forwards}
.contact-banner-en img{width:100%;display:block}
@keyframes cbFadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes cbFadeUpBlur{from{opacity:0;transform:translateY(8px);filter:blur(2px)}to{opacity:1;transform:translateY(0);filter:blur(0)}}

/* ---------- Inquiry form (contact page) ---------- */
.form-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:16px;padding:40px;max-width:760px;margin:0 auto}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13.5px;color:var(--text-secondary);margin-bottom:6px}
.form-group label .req{color:var(--primary);margin-left:2px}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea{
  width:100%;font:inherit;font-size:14.5px;color:var(--text);
  background:var(--bg);border:1px solid var(--card-border);border-radius:8px;
  padding:11px 14px;transition:border-color .2s var(--ease);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{outline:none;border-color:var(--primary)}
.form-group textarea{min-height:110px;resize:vertical}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B5D51' stroke-width='1.8'%3E%3Cpath d='M6 9l6 6 6-6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:36px}
.form-choice-group{display:flex;flex-wrap:wrap;gap:10px 20px}
.form-choice{display:flex;align-items:center;gap:7px;font-size:14px;color:var(--text)}
.form-choice input{accent-color:var(--primary)}
.form-consent{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-secondary);line-height:1.6}
.form-consent input{margin-top:3px;accent-color:var(--primary)}
.form-consent a{color:var(--primary)}
.form-submit{width:100%;justify-content:center;margin-top:8px}
.form-note{text-align:center;font-size:13px;color:var(--text-secondary);margin-top:14px}
.contact-info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:960px;margin:0 auto 48px}
.contact-info-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:24px;text-align:center}
.contact-info-card svg{width:26px;height:26px;stroke:var(--primary);fill:none;stroke-width:1.6;margin-bottom:12px}
.contact-info-card h3{font-size:15px;margin-bottom:6px}
.contact-info-card p{font-size:13.5px;color:var(--text-secondary);line-height:1.6}
@media (max-width:640px){
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px}
  .contact-info-grid{grid-template-columns:1fr}
}

/* ---------- Spec sheet blocks (products page: technical specifications) ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.spec-block{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:16px;min-width:0}
.spec-block-head{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:6px;margin-bottom:6px}
.spec-block-head h3{font-size:14.5px}
.spec-note{font-size:11px;color:var(--text-secondary);margin-bottom:12px}
.spec-table-wrap{overflow-x:auto}
.spec-table{width:100%;border-collapse:collapse;font-size:10.5px;min-width:280px}
.spec-table th,.spec-table td{padding:5px 6px;text-align:left;border-bottom:1px solid var(--card-border);white-space:nowrap}
.spec-table th{color:var(--text-secondary);font-weight:500;font-size:9.5px}
.spec-table td:first-child,.spec-table th:first-child{font-family:'Space Grotesk',sans-serif;font-weight:600;color:var(--primary)}
.spec-table tr:last-child td{border-bottom:none}
.spec-common{display:flex;flex-direction:column;gap:4px;margin-top:10px;padding-top:10px;border-top:1px solid var(--card-border);font-size:10.5px;color:var(--text-secondary)}
.spec-common strong{color:var(--text);font-weight:500}
.spec-diagram{background:#FBFAF7;border:1px solid var(--card-border);border-radius:8px;padding:8px;margin-bottom:10px;text-align:center}
.spec-diagram img{max-width:70%;height:auto;display:inline-block;transition:opacity .2s}
.spec-diagram a.spec-diagram-imglink{display:inline-block;cursor:pointer}
.spec-diagram a.spec-diagram-imglink:hover img{opacity:0.8}
.spec-diagram-caption{font-size:9.5px;color:var(--text-secondary);margin-top:4px}
.spec-diagram-download{display:inline-flex;align-items:center;gap:5px;margin-top:8px;font-size:12px;font-weight:600;color:var(--secondary-dark);text-decoration:none;padding:5px 12px;border:1px solid var(--secondary);border-radius:6px;transition:background-color .2s,color .2s}
.spec-diagram-download svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2}
.spec-diagram-download:hover{background:var(--secondary);color:#FFFFFF}
@media (max-width:960px){
  .spec-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .spec-grid{grid-template-columns:1fr}
  .spec-block{padding:16px}
  .spec-block-head h3{font-size:16px}
  .spec-table{font-size:12px}
  .spec-diagram img{max-width:60%}
}

/* ---------- Generic content cards (about page: who-we-are, capacity, etc.) ---------- */
.info-card{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:32px;
}
.info-card p{color:var(--text-secondary);font-size:15px}
.info-card ul{margin:0;padding-left:20px;color:var(--text-secondary);font-size:15px}
.info-card li{margin-bottom:8px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* ---------- Company story / video block (reused on homepage + about) ---------- */
.story{
  display:grid;grid-template-columns:0.9fr 1.1fr;gap:64px;align-items:center;
}
.story-visual{
  width:100%;aspect-ratio:16/9;border-radius:12px;
  overflow:hidden;position:relative;
  background:var(--text);
}
.story-visual img{width:100%;height:100%;object-fit:cover}
.story-visual iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.story-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000}
.video-link{position:absolute;inset:0;display:block}
.video-link img{transition:transform .5s var(--ease),filter .3s var(--ease)}
.video-link:hover img{transform:scale(1.04);filter:brightness(0.85)}
.play-button{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:72px;height:72px;border-radius:50%;
  background:rgba(255,255,255,0.95);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 32px -8px rgba(0,0,0,0.4);
  transition:transform .3s var(--ease),background-color .3s var(--ease);
}
.video-link:hover .play-button{transform:translate(-50%,-50%) scale(1.1);background:#FFFFFF}
.play-button svg{width:24px;height:24px;fill:var(--primary);margin-left:4px}
.story-chip{
  position:absolute;bottom:20px;left:20px;
  background:rgba(255,255,255,0.95);backdrop-filter:blur(4px);
  border-radius:10px;padding:14px 20px;
  box-shadow:0 12px 32px -12px rgba(46,38,32,0.35);
}
.story-chip strong{display:block;font-family:'Space Grotesk',sans-serif;font-size:22px;color:var(--primary);line-height:1}
.story-chip span{font-size:12px;color:var(--text-secondary)}
.story-content .eyebrow{margin-bottom:16px}
.story-content h2{margin-bottom:20px}
.story-content p{color:var(--text-secondary);margin-bottom:24px;font-size:16px}
.story-content a{
  color:var(--primary);font-weight:500;
  display:inline-flex;align-items:center;gap:6px;
}
.story-content a svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .25s var(--ease)}
.story-content a:hover svg{transform:translateX(4px)}
.story-content a:hover{color:var(--primary-dark)}

/* ---------- FAQ ---------- */
.faq-list{max-width:780px;margin:0 auto}
.faq-list + .faq-list{margin-top:16px}
.faq-category-head{max-width:780px;margin:48px auto 20px}
.faq-category-head:first-of-type{margin-top:0}
.faq-category-head h3{font-size:18px}
.faq-item{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;
  margin-bottom:14px;overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:22px 26px;font-weight:500;font-size:16px;font-family:inherit;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q .q-text{flex:1}
.faq-q .chevron{width:18px;height:18px;stroke:var(--text-secondary);fill:none;stroke-width:2;flex-shrink:0;transition:transform .3s var(--ease)}
.faq-item.open .chevron{transform:rotate(180deg)}
.faq-a-wrap{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a{padding:0 26px 22px;color:var(--text-secondary);font-size:15px}
.see-all a{cursor:pointer}

/* ---------- Bottom CTA ---------- */
.bottom-cta{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#FFFFFF;
  border-radius:20px;
  padding:56px 24px;
  text-align:center;
  position:relative;overflow:hidden;
}
.bottom-cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 50% 80% at 80% 0%,rgba(255,255,255,0.14),transparent 60%);
}
.bottom-cta > *{position:relative}
.bottom-cta .eyebrow{color:rgba(255,255,255,0.75)}
.bottom-cta .eyebrow::before{background:rgba(255,255,255,0.75)}
.bottom-cta h2{color:#FFFFFF;margin-bottom:28px}
.bottom-cta .btn-primary{background:#FFFFFF;color:var(--primary)}
.bottom-cta .btn-primary:hover{background:var(--primary-light);box-shadow:0 10px 24px -8px rgba(0,0,0,0.3)}
.bottom-cta .btn-secondary{background:rgba(255,255,255,0.08);color:#FFFFFF;border-color:rgba(255,255,255,0.4)}
.bottom-cta .btn-secondary:hover{background:rgba(255,255,255,0.18)}
.bottom-cta .cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
footer{background:var(--text);color:rgba(255,255,255,0.7);padding:72px 0 32px}
.footer-top{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:32px;
}
.footer-brand img{height:26px;margin-bottom:16px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,0.55);max-width:280px;line-height:1.7}
.footer-col h3{font-size:13px;margin-bottom:18px;color:#FFFFFF;font-weight:500;letter-spacing:0.02em}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,0.6);margin-bottom:12px;transition:color .2s}
.footer-col a:hover{color:#FFFFFF}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;align-items:center}
.footer-bottom .caption{color:rgba(255,255,255,0.4)}
.footer-badges{display:flex;gap:8px}
.footer-badges span{
  font-size:11px;color:rgba(255,255,255,0.55);border:1px solid rgba(255,255,255,0.18);
  padding:4px 10px;border-radius:20px;
}

/* ---------- Product detail pages ---------- */
.breadcrumb{font-size:13px;display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:18px;color:rgba(255,255,255,0.6);position:relative;z-index:1}
.breadcrumb a{color:rgba(255,255,255,0.6);transition:color .2s}
.breadcrumb a:hover{color:#FFFFFF}
.breadcrumb .sep{opacity:0.5}

.link-arrow{color:var(--primary);font-weight:500;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .25s var(--ease)}
.link-arrow:hover{color:var(--primary-dark)}
.link-arrow:hover svg{transform:translateX(4px)}

.diff-visual-icon{
  width:100%;aspect-ratio:4/3;border-radius:12px;
  background:linear-gradient(135deg,var(--secondary-light),var(--primary-light));
  display:flex;align-items:center;justify-content:center;
}
.diff-visual-icon svg{width:96px;height:96px;stroke:var(--secondary-dark);fill:none;stroke-width:1.2}
.diff-visual.product-photo{background:linear-gradient(135deg,var(--secondary-light),var(--primary-light))}
.diff-visual.product-photo img{object-fit:contain;padding:28px}

/* ---------- Product detail: engineering-spec style hero ---------- */
.pd-hero{background:var(--card-bg);border-bottom:1px solid var(--card-border);padding:32px 0 40px}
.pd-hero .breadcrumb,.pd-hero .breadcrumb a{color:var(--text-secondary)}
.pd-hero .breadcrumb a:hover{color:var(--primary)}
.pd-hero-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:48px;align-items:start}
.pd-hero-image{
  aspect-ratio:4/3;border-radius:12px;overflow:hidden;
  background:linear-gradient(135deg,var(--secondary-light),var(--primary-light));
  display:flex;align-items:center;justify-content:center;
}
.pd-hero-image img{width:100%;height:100%;object-fit:contain;padding:28px}
.pd-hero-image svg{width:35%;height:35%;stroke:var(--secondary-dark);fill:none;stroke-width:1.2}
.pd-category-label{font-size:13px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.04em;display:block;margin-bottom:6px}
.pd-model-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.pd-model-row h1{font-size:36px;line-height:1.15;color:var(--primary);margin:0}
.pd-cert-inline{display:flex;gap:8px;flex-wrap:wrap}
.pd-cert-inline a{font-size:11.5px;font-weight:600;color:var(--secondary-dark);background:var(--secondary-light);border:1px solid var(--secondary);border-radius:6px;padding:4px 9px;transition:background-color .2s,color .2s}
.pd-cert-inline a:hover{background:var(--secondary);color:#FFFFFF}
.pd-tagline{color:var(--text-secondary);font-size:15.5px;margin-bottom:22px;max-width:52ch}

.pd-key-specs{width:100%;border-collapse:collapse;margin-bottom:24px;font-size:14px;border:1px solid var(--card-border);border-radius:10px;overflow:hidden}
.pd-key-specs tr:nth-child(odd){background:var(--bg)}
.pd-key-specs th{text-align:left;padding:10px 16px;width:150px;color:var(--text-secondary);font-weight:500;vertical-align:top;white-space:nowrap}
.pd-key-specs td{padding:10px 16px;color:var(--text);font-weight:500}

/* ---------- Sticky bottom contact bar (product detail pages) ---------- */
body.has-sticky-bar{padding-bottom:76px}
.pd-sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  background:#FFFFFF;border-top:1px solid var(--card-border);
  box-shadow:0 -6px 24px rgba(46,38,32,0.1);
  display:flex;align-items:center;justify-content:flex-end;gap:12px;
  padding:12px 24px;
}
.pd-sticky-bar .pd-sticky-label{margin-right:auto;font-size:14px;color:var(--text-secondary)}
.pd-sticky-bar .pd-sticky-label strong{color:var(--text);font-weight:600}
@media (max-width:640px){
  .pd-sticky-bar .pd-sticky-label{display:none}
  .pd-sticky-bar{padding:10px 16px;justify-content:center}
  .pd-hero-grid{grid-template-columns:1fr}
}

.product-card{display:block}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  h1{font-size:38px}
  h2{font-size:26px}
  .diff-split{grid-template-columns:1fr;gap:32px}
  .diff-visual{max-width:360px;margin:0 auto;aspect-ratio:4/3}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .audience-grid{grid-template-columns:1fr}
  .story{grid-template-columns:1fr;gap:32px}
  .story-visual{max-width:480px;margin:0 auto;aspect-ratio:16/9}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .stat{padding:36px 20px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cert-why-grid{grid-template-columns:1fr}
  .cert-detail-card{grid-template-columns:1fr}
  .cert-detail-card.three-col{grid-template-columns:1fr}
  .cert-detail-card.three-col .cert-detail-body{border-left:none;border-right:none;border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border)}
  .cert-detail-image{min-height:320px;border-right:none;border-bottom:1px solid var(--card-border)}
  .cert-detail-card.three-col .cert-detail-image{border-bottom:1px solid var(--card-border)}
  .cert-image-grid{grid-template-rows:1fr 1fr;border-right:none;border-bottom:1px solid var(--card-border)}
  .two-col{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:72px 1fr;gap:16px}
  .timeline-item::before{left:80px}
  .timeline-item::after{left:76px}
  .logo img{height:24px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:640px){
  h1{font-size:30px}
  .page-hero h1.tight{font-size:25px}
  h2{font-size:23px}
  h3{font-size:18px}
  section{padding:44px 0}
  .logo img{height:20px}
  .nav-cta{gap:8px}
  .lang-switch button{padding:5px 9px;font-size:11px}
  .btn-sm{padding:8px 12px;font-size:12px}
  .hero{padding:72px 0 44px}
  .page-hero{padding:64px 0 40px}
  .scroll-cue{display:none}
  .nav-links{display:none}
  .menu-toggle{display:block}
  .product-grid{grid-template-columns:1fr}
  .product-grid.cols-3{grid-template-columns:1fr}
  .bottom-cta{padding:40px 24px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .wrap{padding:0 20px}
  .cert-detail-image{min-height:280px;padding:16px}
  .cert-detail-body{padding:24px}
  .info-card{padding:24px}
}