/* ===== HSEH · Core Styles ===== */
:root{
  --bg:#fbf8f4;
  --ink:#2b241d;
  --muted:#8d8175;
  --line:#e8ded2;
  --accent:#7a5a38;
  --soft:#f4ece1;
  --white:#ffffff;
  --serif:Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"PingFang SC",sans-serif;
  --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 40px}

/* ===== Nav ===== */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(251,248,244,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-in{
  max-width:var(--max);margin:0 auto;padding:18px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  font-family:var(--serif);font-size:22px;letter-spacing:.24em;
  color:var(--ink);font-weight:400;
}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{
  font-size:12.5px;letter-spacing:.06em;color:var(--muted);
  padding:4px 0;border-bottom:1px solid transparent;transition:.2s;
}
.nav-links a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.nav-cta{
  font-size:11.5px;letter-spacing:.1em;padding:10px 20px;
  background:var(--ink);color:var(--bg);
}
.nav-cta:hover{background:var(--accent)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.burger span{width:22px;height:1.5px;background:var(--ink);display:block}

/* ===== Hero ===== */
.hero{display:grid;grid-template-columns:1fr 1fr;min-height:520px;border-bottom:1px solid var(--line)}
.hero-copy{padding:80px 40px 80px 0;display:flex;flex-direction:column;justify-content:center;max-width:560px}
.eyebrow{
  font-size:10.5px;letter-spacing:.22em;color:var(--accent);
  text-transform:uppercase;margin-bottom:22px;font-weight:600;
}
h1{
  font-family:var(--serif);font-size:52px;line-height:1.12;
  font-weight:400;letter-spacing:-1px;margin-bottom:22px;
}
h1 em{font-style:normal;color:var(--accent)}
.lede{font-size:15px;line-height:1.95;color:var(--muted);max-width:440px;margin-bottom:34px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;font-size:12px;letter-spacing:.1em;
  padding:15px 28px;transition:.2s;text-transform:uppercase;
}
.btn-p{background:var(--ink);color:var(--bg)}
.btn-p:hover{background:var(--accent)}
.btn-s{border:1px solid var(--line);color:var(--ink)}
.btn-s:hover{border-color:var(--ink)}
.hero-img{
  align-self:stretch;min-height:420px;
  background:var(--soft);
}

/* ===== Placeholder ===== */
.ph{
  display:flex;align-items:center;justify-content:center;
  background:
    repeating-linear-gradient(135deg,rgba(122,90,56,.045) 0 2px,transparent 2px 10px),
    linear-gradient(155deg,#ecdfcd,#dcc7ab);
  color:#a08c74;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  position:relative;
}
.ph::after{
  content:attr(data-label);
  border:1px solid rgba(122,90,56,.22);padding:6px 12px;
}

/* ===== Stats ===== */
.stats{
  display:grid;grid-template-columns:repeat(5,1fr);
  border-bottom:1px solid var(--line);
}
.stat{padding:34px 16px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat-n{font-family:var(--serif);font-size:30px;color:var(--ink);line-height:1}
.stat-l{font-size:10px;letter-spacing:.12em;color:var(--muted);margin-top:10px;text-transform:uppercase;line-height:1.6}

/* ===== Section ===== */
.sec{padding:80px 0}
.sec.alt{background:var(--soft)}
.sec-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:40px;gap:24px;flex-wrap:wrap;
}
h2{font-family:var(--serif);font-size:34px;font-weight:400;letter-spacing:-.5px;line-height:1.2}
.sec-head p{font-size:13.5px;color:var(--muted);max-width:440px;line-height:1.85}
.link-more{
  font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  border-bottom:1px solid var(--line);padding-bottom:3px;white-space:nowrap;
}
.link-more:hover{border-color:var(--ink)}

/* ===== Category grid ===== */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.cat .ph{height:190px;margin-bottom:16px}
.cat-img{width:100%;height:230px;object-fit:contain;background:#fff;margin-bottom:16px;border:1px solid var(--line)}
.hero-visual{width:100%;height:auto;display:block}
.lp-visual{width:100%;min-height:480px;object-fit:cover}
.br-img{width:100%;height:280px;object-fit:contain;background:#fff;border:1px solid var(--line)}
.cat h3{font-family:var(--serif);font-size:16px;font-weight:400;margin-bottom:5px}
.cat p{font-size:11.5px;color:var(--muted);line-height:1.6}

/* ===== Series grid ===== */
.series{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sr .ph{height:240px}
.sr h3{font-family:var(--serif);font-size:15px;font-weight:400;margin:14px 0 4px;letter-spacing:.04em}
.sr p{font-size:11.5px;color:var(--muted)}

/* ===== Split ===== */
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.split.rev{grid-template-columns:1fr 1.1fr}
.split .ph{min-height:340px}
.split-copy h2{margin-bottom:20px}
.split-copy p{font-size:14px;color:var(--muted);line-height:1.95;margin-bottom:14px}
.split-copy p strong{color:var(--ink);font-weight:600}

/* ===== Flow ===== */
.flow{margin-top:32px;border-top:1px solid var(--line)}
.flow-item{display:flex;gap:18px;padding:15px 0;border-bottom:1px solid var(--line);align-items:baseline}
.flow-i{font-family:var(--serif);font-size:12px;color:var(--accent);width:26px;flex-shrink:0}
.flow-t{font-size:13.5px}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:30px 24px 30px 0;border-right:1px solid var(--line)}
.step:last-child{border-right:none}
.step-n{font-family:var(--serif);font-size:11px;letter-spacing:.16em;color:var(--accent);margin-bottom:12px}
.step h3{font-family:var(--serif);font-size:16px;font-weight:400;margin-bottom:8px}
.step p{font-size:12px;color:var(--muted);line-height:1.7}

/* ===== Markets ===== */
.mk-label{font-size:9.5px;letter-spacing:.18em;color:var(--muted);margin-bottom:12px;text-transform:uppercase;font-weight:600}
.mk-group + .mk-group{margin-top:26px}
.markets{display:flex;gap:10px;flex-wrap:wrap}
.mk{font-size:11.5px;padding:8px 16px;border:1px solid var(--line);letter-spacing:.05em}
.mk.hl{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ===== CTA band ===== */
.cta-band{border-top:1px solid var(--line);padding:64px 0;text-align:center}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--muted);font-size:14px;margin-bottom:30px}

/* ===== Page head ===== */
.page-head{padding:70px 0 56px;border-bottom:1px solid var(--line)}
.page-head .eyebrow{margin-bottom:18px}
.page-head h1{font-size:44px;margin-bottom:16px}
.page-head p{font-size:14.5px;color:var(--muted);max-width:600px;line-height:1.9}

/* ===== Spec table ===== */
.spec{width:100%;border-collapse:collapse;margin-top:28px;font-size:13px}
.spec th,.spec td{text-align:left;padding:14px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{font-weight:400;color:var(--muted);width:38%;font-size:12px;letter-spacing:.03em}
.spec td{color:var(--ink)}

/* ===== FAQ ===== */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  padding:22px 0;cursor:pointer;font-size:14.5px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:18px;color:var(--accent);flex-shrink:0}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 0 24px;font-size:13.5px;color:var(--muted);line-height:1.9;max-width:760px}

/* ===== Form ===== */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:720px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:11px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.field input,.field textarea,.field select{
  font-family:var(--sans);font-size:13.5px;color:var(--ink);
  background:transparent;border:1px solid var(--line);padding:12px 14px;
  outline:none;transition:.2s;
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent)}
.field textarea{min-height:110px;resize:vertical}
.form .btn-p{border:none;cursor:pointer;justify-self:start;margin-top:6px}

/* ===== Contact cards ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.cc{border:1px solid var(--line);padding:26px 22px}
.cc h3{font-size:10.5px;letter-spacing:.16em;color:var(--muted);margin-bottom:12px;text-transform:uppercase;font-weight:600}
.cc p{font-family:var(--serif);font-size:16px;line-height:1.5}

/* ===== Footer ===== */
.foot{border-top:1px solid var(--line);padding:56px 0 32px;background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot h4{font-size:10px;letter-spacing:.16em;color:var(--muted);margin-bottom:16px;text-transform:uppercase;font-weight:600}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot li a,.foot li{font-size:12.5px;color:var(--muted)}
.foot li a:hover{color:var(--ink)}
.foot-brand p{font-size:12.5px;color:var(--muted);line-height:1.8;margin-top:14px;max-width:280px}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:24px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.foot-bottom span{font-size:10.5px;color:var(--muted);letter-spacing:.04em}

/* ===== Landing page ===== */
.lp{
  min-height:100vh;display:flex;flex-direction:column;
  background:var(--bg);
}
.lp-top{padding:26px 0;display:flex;justify-content:space-between;align-items:center}
.lp-body{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:20px 0 60px}
.lp-body .ph{min-height:480px}
.lp-body h1{font-size:42px;margin-bottom:20px}
.lp-list{list-style:none;margin:28px 0;display:flex;flex-direction:column;gap:12px}
.lp-list li{font-size:13.5px;color:var(--muted);padding-left:22px;position:relative}
.lp-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border:1px solid var(--accent)}
.lp-wa{display:inline-flex;align-items:center;gap:10px;background:#1e7a4c;color:#fff;padding:17px 30px;font-size:12.5px;letter-spacing:.08em}
.lp-foot{padding:24px 0;border-top:1px solid var(--line)}
.lp-foot span{font-size:10.5px;color:var(--muted)}

/* ===== Variants ===== */
.cats.three{grid-template-columns:repeat(3,1fr)}
.cats.four{grid-template-columns:repeat(4,1fr)}
.series.two{grid-template-columns:repeat(2,1fr)}
.series.four{grid-template-columns:repeat(4,1fr)}
.br .ph{height:280px}
.br h3{font-family:var(--serif);font-size:19px;font-weight:400;margin:16px 0 8px;letter-spacing:.04em}
.br p{font-size:12.5px;color:var(--muted);line-height:1.75}
.series .sr h3{font-size:18px;margin-top:2px}
.series .sr p{line-height:1.75}

/* SKU table */
.spec.sku{margin-top:26px;font-size:13px}
.spec.sku thead th{
  font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  padding:0 0 12px;border-bottom:1px solid var(--ink);font-weight:600;
}
.spec.sku tbody td{padding:13px 0;border-bottom:1px solid var(--line);width:auto}
.spec.sku tbody td:first-child{color:var(--accent);font-size:11.5px;letter-spacing:.06em;white-space:nowrap}
.spec.sku thead th.th-col{width:64px}
.spec.sku tbody td.thumb{width:64px;padding:8px 12px 8px 0;border-bottom:1px solid var(--line)}
.spec.sku img.th,.spec.sku .th-empty{
  display:block;width:52px;height:52px;object-fit:contain;background:#fff;
  border:1px solid var(--line);
}
.spec.sku .th-empty{background:var(--soft)}
.spec.sku tbody td{padding:10px 0}
.spec.sku tbody td.code{color:var(--muted);font-size:11.5px;letter-spacing:.04em;white-space:nowrap}
.spec.sku .note{display:block;font-size:11px;color:var(--accent);margin-top:4px;letter-spacing:.02em;font-style:italic}
.spec.sku .cn{display:block;font-size:11px;color:var(--muted);margin-top:3px;letter-spacing:.02em}
.spec.sku .badge-new{
  display:inline-block;font-size:8.5px;letter-spacing:.16em;color:var(--accent);
  border:1px solid var(--accent);padding:1.5px 6px;margin-left:8px;vertical-align:middle;
}
.spec.sku tbody tr:hover td{background:rgba(122,90,56,.035)}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .hero{grid-template-columns:1fr}
  .hero-copy{padding:56px 0 40px;max-width:none}
  .hero-img{min-height:320px}
  .cats,.cats.four{grid-template-columns:repeat(2,1fr)}
  .series,.series.four{grid-template-columns:repeat(2,1fr)}
  .split,.split.rev{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2){border-right:none}
  .step:nth-child(3),.step:nth-child(4){border-top:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .lp-body{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  h1{font-size:40px}
  .page-head h1{font-size:34px}
  .stats{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:none}
  .stat:nth-child(4),.stat:nth-child(5){border-top:1px solid var(--line)}
}
@media(max-width:760px){
  .wrap{padding:0 22px}
  .nav-in{padding:14px 22px}
  .nav-links{display:none}
  .burger{display:flex}
  h1{font-size:34px}
  h2{font-size:26px}
  .sec{padding:56px 0}
  .cats{grid-template-columns:repeat(2,1fr)}
  .series{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:none;border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:1fr}
  .step{border-right:none;border-bottom:1px solid var(--line)}
  .form{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-copy{padding:44px 0 32px}
  .page-head{padding:44px 0 36px}
}

/* ===== Facility photography ===== */
.fac-img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block}
.fac-wide{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block}
.pull{margin:0;border-left:2px solid var(--accent);padding:6px 0 6px 34px}
.pull blockquote{
  font-family:var(--serif);font-size:25px;line-height:1.6;color:var(--ink);
  margin:0 0 18px;font-weight:400;
}
.pull figcaption{font-size:12px;line-height:1.9;color:var(--muted);letter-spacing:.02em}
@media (max-width:900px){
  .fac-img{aspect-ratio:3/2}
  .pull blockquote{font-size:20px}
}