/* Cloud Creative — Smart Livestock IoT | English site redesign */
:root{
  --ink:#0c1a14;
  --pine:#122a1f;
  --pine-2:#1b3a2c;
  --cream:#f6f3ea;
  --cream-2:#efe9d8;
  --gold:#c6a15b;
  --gold-soft:#e3c98f;
  --sage:#8fa08a;
  --line:rgba(12,26,20,.12);
  --line-light:rgba(246,243,234,.14);
  --text:#20302a;
  --muted:#5d6f66;
  --muted-light:#a9b8ae;
  --card:#ffffff;
  --radius:18px;
  --shadow:0 24px 60px -24px rgba(12,26,20,.25);
  --font-d:"Playfair Display",Georgia,"Times New Roman",serif;
  --font-b:"Inter",-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-b);
  color:var(--text);
  background:var(--cream);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
section{scroll-margin-top:84px}

/* ---------- top utility bar ---------- */
.topbar{
  background:var(--ink);color:var(--cream);
  font-size:12.5px;letter-spacing:.02em;
  position:relative;z-index:60;
}
.topbar .wrap{
  display:flex;align-items:center;gap:26px;
  height:38px;justify-content:flex-start;
}
.topbar a{display:inline-flex;align-items:center;gap:7px;color:var(--cream);opacity:.92}
.topbar a:hover{opacity:1;color:var(--gold-soft)}
.topbar .tb-right{margin-left:auto;opacity:.65;letter-spacing:.06em;text-transform:uppercase;font-size:11px}
.topbar svg{width:13px;height:13px;fill:var(--gold)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  transition:background .35s ease,box-shadow .35s ease;
  background:linear-gradient(to bottom,rgba(12,26,20,.72),rgba(12,26,20,0));
}
.site-header .wrap{
  display:flex;align-items:center;gap:34px;height:76px;
}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 42px;
  background:linear-gradient(135deg,var(--gold),#8f6f35);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-d);font-weight:700;font-size:22px;color:var(--ink);
}
.brand-name{line-height:1.15}
.brand-name b{display:block;font-size:17px;letter-spacing:.04em}
.brand-name span{display:block;font-size:10px;letter-spacing:.32em;color:var(--gold-soft);text-transform:uppercase}
.main-nav{display:flex;gap:28px;margin-left:auto}
.main-nav a{
  color:rgba(255,255,255,.85);font-size:14px;letter-spacing:.02em;
  padding:6px 2px;position:relative;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--gold);transition:width .3s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:100%}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--gold);color:var(--ink);
  font-weight:600;font-size:14.5px;letter-spacing:.02em;
  padding:12px 26px;border-radius:999px;border:0;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(198,161,91,.7);background:var(--gold-soft)}
.btn.ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);
}
.btn.ghost:hover{border-color:#fff;box-shadow:none;background:rgba(255,255,255,.08)}
.header-cta{margin-left:6px}
.site-header.scrolled{
  background:rgba(12,26,20,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 10px 30px -12px rgba(0,0,0,.5);
}
.burger{display:none;background:none;border:0;cursor:pointer;margin-left:auto;padding:10px}
.burger span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.3s}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:max(640px,calc(100vh - 114px));
  display:flex;align-items:flex-end;
  margin-top:-76px;padding-top:76px;
  color:#fff;overflow:hidden;background:var(--ink);
}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 62%}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(8,18,13,.88) 0%,rgba(8,18,13,.55) 42%,rgba(8,18,13,.08) 75%),
    linear-gradient(to top,rgba(8,18,13,.92) 0%,rgba(8,18,13,0) 42%);
}
.hero .wrap{position:relative;z-index:2;width:100%;padding-bottom:0}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid rgba(198,161,91,.55);color:var(--gold-soft);
  font-size:12px;letter-spacing:.28em;text-transform:uppercase;
  padding:9px 18px 9px 16px;border-radius:999px;margin-bottom:26px;
  background:rgba(12,26,20,.35);backdrop-filter:blur(6px);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
.hero h1{
  font-family:var(--font-d);font-weight:600;
  font-size:clamp(2.5rem,5.6vw,4.4rem);
  line-height:1.12;letter-spacing:.01em;max-width:15em;
}
.hero h1 em{font-style:italic;color:var(--gold-soft)}
.hero-sub{
  margin-top:18px;font-size:clamp(1.02rem,1.6vw,1.25rem);
  color:rgba(255,255,255,.88);max-width:34em;font-weight:300;
}
.hero-sub strong{color:#fff;font-weight:600}
.hero-ctas{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-stats{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.16);
  margin-top:56px;background:rgba(8,18,13,.45);backdrop-filter:blur(10px);
}
.hero-stats .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding-top:26px;padding-bottom:30px;gap:20px;
}
.hstat{padding-left:22px;border-left:1px solid rgba(198,161,91,.4)}
.hstat:first-child{border-left:0;padding-left:0}
.hstat b{
  display:block;font-family:var(--font-d);font-size:clamp(1.7rem,2.6vw,2.3rem);
  color:#fff;font-weight:600;line-height:1.1;
}
.hstat b .sfx{font-size:.55em;color:var(--gold-soft)}
.hstat span{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.62)}

/* ---------- section scaffolding ---------- */
.section{padding:clamp(72px,9vw,124px) 0}
.section.alt{background:var(--ink);color:var(--cream)}
.section.tint{background:var(--cream-2)}
.eyebrow{
  display:flex;align-items:center;gap:14px;
  font-size:12px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin-bottom:20px;
}
.eyebrow::before{content:"";width:44px;height:2px;background:var(--gold)}
.alt .eyebrow{color:var(--gold-soft)}
.sec-head{max-width:760px;margin-bottom:clamp(36px,5vw,60px)}
.sec-head h2{
  font-family:var(--font-d);font-weight:600;
  font-size:clamp(1.9rem,3.8vw,2.9rem);line-height:1.2;letter-spacing:.01em;
}
.sec-head h2 em{font-style:italic;color:var(--gold)}
.alt .sec-head h2 em{color:var(--gold-soft)}
.sec-head p{margin-top:16px;color:var(--muted);font-size:1.05rem;max-width:44em}
.alt .sec-head p{color:var(--muted-light)}
.center{text-align:center}
.center .sec-head{margin-left:auto;margin-right:auto}
.center .eyebrow{justify-content:center}
.center .eyebrow::after{content:"";width:44px;height:2px;background:var(--gold)}

/* ---------- solutions grid ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sol-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;position:relative;overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease;
}
.sol-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft));
  transform:scaleX(0);transform-origin:left;transition:transform .35s ease;
}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.sol-card:hover::before{transform:scaleX(1)}
.sol-num{
  font-family:var(--font-d);font-size:15px;color:var(--gold);
  letter-spacing:.2em;margin-bottom:14px;
}
.sol-card h3{font-size:1.22rem;margin-bottom:10px;letter-spacing:.01em}
.sol-card p{font-size:.95rem;color:var(--muted)}
.sol-card .go{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  font-size:13.5px;font-weight:600;color:var(--pine-2);letter-spacing:.04em;
}
.sol-card .go svg{width:15px;height:15px;stroke:currentColor;transition:transform .25s}
.sol-card:hover .go{color:var(--gold)}
.sol-card:hover .go svg{transform:translateX(4px)}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,6vw,80px);align-items:center}
.about-copy p{margin-bottom:18px;color:var(--text);font-size:1.03rem}
.about-copy p.lead{font-size:1.18rem;font-weight:300;color:var(--pine)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  font-size:12.5px;letter-spacing:.05em;font-weight:600;
  border:1px solid var(--gold);color:#8a6d33;
  padding:8px 16px;border-radius:999px;background:rgba(198,161,91,.08);
}
.about-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px;
}
.astat{
  background:var(--ink);color:var(--cream);border-radius:var(--radius);
  padding:26px 24px;position:relative;overflow:hidden;
}
.astat::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(var(--gold),var(--gold-soft));
}
.astat b{display:block;font-family:var(--font-d);font-size:2rem;line-height:1.1}
.astat b .sfx{font-size:.55em;color:var(--gold-soft)}
.astat span{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-light)}
.about-media{position:relative}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover;aspect-ratio:4/4.6}
.about-media .frame{
  position:absolute;inset:22px -22px -22px 22px;border:1px solid var(--gold);
  border-radius:var(--radius);z-index:-1;
}

/* ---------- yak chain timeline ---------- */
.chain-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:10px}
.cstep{
  padding:30px 22px 8px;position:relative;
  border-top:2px solid var(--line-light);
}
.cstep::before{
  content:attr(data-n);
  position:absolute;top:-24px;left:22px;
  width:46px;height:46px;border-radius:50%;
  background:var(--ink);border:2px solid var(--gold);
  color:var(--gold-soft);font-family:var(--font-d);font-size:1.05rem;
  display:flex;align-items:center;justify-content:center;
}
.cstep h3{font-size:1.05rem;margin-bottom:8px;color:#fff}
.cstep p{font-size:.88rem;color:var(--muted-light);line-height:1.65}
.chain-media{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px;
}
.chain-media img{border-radius:14px;aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .4s ease}
.chain-media figure{overflow:hidden;border-radius:14px;position:relative}
.chain-media figure:hover img{transform:scale(1.05)}

/* ---------- sheep farm ---------- */
.sheep-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,72px);align-items:center}
.sheep-media img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3.4;object-fit:cover;width:100%}
.check-list{list-style:none;margin-top:24px;display:grid;gap:18px}
.check-list li{display:flex;gap:16px;align-items:flex-start}
.check-list .tick{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:rgba(198,161,91,.15);border:1px solid var(--gold);
  display:flex;align-items:center;justify-content:center;
}
.check-list .tick svg{width:14px;height:14px;stroke:var(--gold);stroke-width:2.4;fill:none}
.check-list b{display:block;font-size:1rem;margin-bottom:2px}
.check-list p{font-size:.93rem;color:var(--muted)}
.quad{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:clamp(36px,5vw,56px)}
.qcard{
  border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;
  background:var(--card);transition:transform .3s ease,box-shadow .3s ease;
}
.qcard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.qcard .qk{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:10px}
.qcard h3{font-size:1.02rem;margin-bottom:8px}
.qcard p{font-size:.88rem;color:var(--muted)}

/* ---------- AI breeding (dark) ---------- */
.breed-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:10px}
.bcard{
  background:rgba(246,243,234,.04);border:1px solid var(--line-light);
  border-radius:var(--radius);padding:34px 30px;
  transition:background .3s ease,transform .3s ease;
}
.bcard:hover{background:rgba(246,243,234,.07);transform:translateY(-4px)}
.bcard .bicon{
  width:52px;height:52px;border-radius:14px;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(198,161,91,.28),rgba(198,161,91,.08));
  border:1px solid rgba(198,161,91,.4);
  display:flex;align-items:center;justify-content:center;
}
.bcard .bicon svg{width:24px;height:24px;stroke:var(--gold-soft);fill:none;stroke-width:1.7}
.bcard h3{color:#fff;font-size:1.12rem;margin-bottom:8px}
.bcard p{font-size:.92rem;color:var(--muted-light)}
.breed-note{
  margin-top:30px;display:flex;gap:14px;align-items:center;
  border:1px dashed rgba(198,161,91,.5);border-radius:14px;padding:18px 22px;
  color:var(--gold-soft);font-size:.95rem;
}

/* ---------- measurement ---------- */
.measure-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,72px);align-items:start}
.how-box{
  background:var(--ink);color:var(--cream);border-radius:var(--radius);
  padding:clamp(28px,4vw,44px);position:relative;overflow:hidden;
}
.how-box::before{
  content:"";position:absolute;top:-70px;right:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,161,91,.28),transparent 70%);
}
.how-box h3{font-family:var(--font-d);font-size:1.5rem;margin-bottom:14px;color:#fff}
.how-box h3 em{color:var(--gold-soft);font-style:italic}
.how-box p{color:var(--muted-light);font-size:.97rem}
.metric-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.metric{
  border:1px solid var(--line-light);border-radius:12px;padding:18px;
  background:rgba(246,243,234,.03);
}
.metric b{display:block;font-family:var(--font-d);font-size:1.5rem;color:var(--gold-soft)}
.metric span{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-light)}
.spec-list{list-style:none;display:grid;gap:0;margin-top:6px}
.spec-list li{
  display:flex;gap:18px;padding:20px 4px;border-bottom:1px solid var(--line);align-items:baseline;
}
.spec-list li:last-child{border-bottom:0}
.spec-list .sn{font-family:var(--font-d);color:var(--gold);font-size:1rem;flex:0 0 44px}
.spec-list b{display:block;font-size:1.02rem}
.spec-list p{font-size:.9rem;color:var(--muted)}

/* ---------- equipment ---------- */
.equip-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ecard{
  display:grid;grid-template-columns:220px 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;
}
.ecard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.ecard .eimg{position:relative;min-height:100%}
.ecard .eimg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ecard .ebody{padding:28px 28px 26px}
.ecard .ek{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:8px}
.ecard h3{font-size:1.12rem;margin-bottom:8px}
.ecard p{font-size:.9rem;color:var(--muted);margin-bottom:14px}
.especs{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.especs li{
  font-size:12px;background:rgba(198,161,91,.1);border:1px solid rgba(198,161,91,.35);
  color:#7a5f2b;padding:5px 12px;border-radius:999px;font-weight:500;
}

/* ---------- traceability ---------- */
.trace-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:8px 0 clamp(36px,5vw,56px)}
.tstat{
  text-align:center;padding:30px 16px;border:1px solid var(--line-light);
  border-radius:var(--radius);background:rgba(246,243,234,.03);
}
.tstat b{display:block;font-family:var(--font-d);font-size:clamp(1.8rem,3vw,2.5rem);color:var(--gold-soft)}
.tstat span{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-light)}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.vcard{padding:30px 28px;border-left:2px solid var(--gold)}
.vcard h3{color:#fff;font-size:1.1rem;margin-bottom:10px}
.vcard p{font-size:.92rem;color:var(--muted-light)}
.qr-block{
  margin-top:clamp(40px,5vw,60px);text-align:center;
  border:1px solid var(--line-light);border-radius:var(--radius);
  padding:clamp(30px,4vw,48px);background:rgba(246,243,234,.03);
}
.qr-block h3{color:#fff;font-family:var(--font-d);font-size:1.5rem;margin-bottom:8px}
.qr-block>p{color:var(--muted-light);font-size:.95rem;margin-bottom:28px}
.qr-row{display:flex;justify-content:center;gap:clamp(20px,4vw,48px);flex-wrap:wrap}
.qr{background:#fff;border-radius:14px;padding:16px;width:172px}
.qr img{width:140px;height:140px;object-fit:contain;margin:0 auto}
.qr span{display:block;font-size:12.5px;font-weight:600;color:var(--ink);margin-top:10px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(36px,6vw,72px);align-items:start}
.c-item{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);align-items:flex-start;
}
.c-item:first-child{padding-top:6px}
.c-icon{
  flex:0 0 50px;width:50px;height:50px;border-radius:14px;
  background:var(--ink);display:flex;align-items:center;justify-content:center;
}
.c-icon svg{width:22px;height:22px;stroke:var(--gold-soft);fill:none;stroke-width:1.7}
.c-item b{display:block;font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
.c-item .cv{font-size:1.08rem;font-weight:600;color:var(--ink)}
.c-item .cv small{display:block;font-weight:400;font-size:.85rem;color:var(--muted);margin-top:2px}
a.cv:hover{color:#8a6d33}
.contact-form{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(28px,4vw,44px);box-shadow:var(--shadow);
}
.contact-form h3{font-family:var(--font-d);font-size:1.5rem;margin-bottom:6px}
.contact-form>p{font-size:.92rem;color:var(--muted);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:12.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;font-size:15px;font-family:var(--font-b);
  background:var(--cream);color:var(--text);transition:border .25s,box-shadow .25s;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(198,161,91,.18);background:#fff;
}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}

/* ---------- footer ---------- */
.site-footer{background:#08120e;color:var(--muted-light);padding:70px 0 0;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:44px;padding-bottom:50px}
.foot-brand p{margin-top:16px;max-width:30em;font-size:.92rem}
.foot-col h4{
  color:#fff;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;
  margin-bottom:20px;font-weight:600;
}
.foot-col ul{list-style:none;display:grid;gap:11px}
.foot-col a{color:var(--muted-light);font-size:.93rem}
.foot-col a:hover{color:var(--gold-soft)}
.foot-contact li{display:flex;gap:10px;align-items:flex-start}
.foot-contact svg{width:15px;height:15px;stroke:var(--gold);fill:none;stroke-width:1.8;flex:0 0 15px;margin-top:5px}
.foot-bottom{
  border-top:1px solid rgba(246,243,234,.1);padding:24px 0;
  display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  font-size:12.5px;color:#7d8d83;
}
.foot-bottom .filings{display:flex;gap:18px;align-items:center;flex-wrap:wrap}

/* ---------- floating buttons ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:40;
  width:52px;height:52px;border-radius:50%;border:1px solid rgba(198,161,91,.5);
  background:rgba(12,26,20,.85);color:var(--gold-soft);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;
  backdrop-filter:blur(8px);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-4px)}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}

/* ---------- reveal animation ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.1s}.rv-d2{transition-delay:.2s}.rv-d3{transition-delay:.3s}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(340px,84vw);height:100dvh;
    background:var(--ink);flex-direction:column;align-items:flex-start;
    padding:110px 36px 40px;gap:6px;margin:0;
    transform:translateX(100%);transition:transform .38s cubic-bezier(.7,0,.3,1);
    box-shadow:-30px 0 60px rgba(0,0,0,.4);
  }
  .main-nav.open{transform:none}
  .main-nav a{font-size:1.05rem;padding:12px 0;width:100%;border-bottom:1px solid rgba(246,243,234,.08)}
  .burger{display:block;position:relative;z-index:60}
  .burger.x span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.x span:nth-child(2){opacity:0}
  .burger.x span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .header-cta{display:none}
  .sol-grid{grid-template-columns:1fr 1fr}
  .quad{grid-template-columns:1fr 1fr}
  .chain-steps{grid-template-columns:1fr;gap:26px}
  .cstep{border-top:0;border-left:2px solid var(--line-light);padding:6px 0 6px 34px}
  .cstep::before{top:0;left:-24px}
  .chain-media{grid-template-columns:1fr 1fr}
  .about-grid,.sheep-grid,.measure-grid,.contact-grid{grid-template-columns:1fr}
  .about-media{max-width:520px}
  .about-media .frame{display:none}
  .equip-grid{grid-template-columns:1fr}
  .trace-stats{grid-template-columns:1fr 1fr}
  .value-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .topbar .tb-right{display:none}
  .topbar .wrap{gap:16px;font-size:11.5px;overflow:hidden;white-space:nowrap}
  .hero{min-height:max(600px,calc(100svh - 114px))}
  .hero-ctas .btn{width:100%;justify-content:center}
  .hero-stats .wrap{grid-template-columns:1fr 1fr;row-gap:24px}
  .hstat:nth-child(3){border-left:0;padding-left:0}
  .sol-grid{grid-template-columns:1fr}
  .quad{grid-template-columns:1fr}
  .breed-grid{grid-template-columns:1fr}
  .chain-media{grid-template-columns:1fr 1fr;gap:10px}
  .ecard{grid-template-columns:1fr}
  .ecard .eimg{position:relative;aspect-ratio:16/9}
  .ecard .eimg img{position:absolute}
  .trace-stats{grid-template-columns:1fr 1fr;gap:12px}
  .metric-row{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
  .qr{width:150px}
  .qr img{width:118px;height:118px}
}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}