:root{
  --ink:#16241C; --ink-2:#1E3227; --ink-3:#24402F;
  --amber:#CB7A1C; --amber-bright:#E4A031; --amber-soft:#F3D9A8;
  --bone:#F6F2E9; --paper:#FBF9F3; --sand:#E7DECB; --bark:#6A4A2C;
  --tx:#20261D; --tx-mut:#5B6153; --line:#DED3BE;
  --tx-on:#EDE7D8; --tx-on-mut:#A9B4A2;
  --maxw:1180px; --r:14px;
  --serif:"Spectral",Georgia,serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
html[lang="ar"]{ --sans:"Noto Sans Arabic",system-ui,sans-serif; --serif:"Noto Sans Arabic",serif; --mono:"Noto Sans Arabic",monospace; }
html[lang="zh"]{ --sans:"Noto Sans SC",system-ui,sans-serif; }
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bone);color:var(--tx);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);font-weight:500}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;letter-spacing:-.01em}
h2{font-size:clamp(28px,4vw,44px)}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--tx-mut);max-width:60ch}
section{padding:clamp(64px,9vw,120px) 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font-family:var(--sans);font-weight:500;font-size:15px;
  padding:13px 22px;border-radius:100px;border:1.5px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-amber{background:var(--amber);color:#26160a}
.btn-amber:hover{background:var(--amber-bright)}
.btn-ghost{background:transparent;border-color:rgba(237,231,216,.35);color:var(--tx-on)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber-bright)}
.btn-dark{background:var(--ink);color:var(--tx-on)}
.btn-dark:hover{background:var(--ink-2)}
.btn[disabled]{opacity:.65;cursor:not-allowed}
:focus-visible{outline:3px solid var(--amber-bright);outline-offset:2px;border-radius:4px}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;z-index:200;background:var(--amber);color:#26160a;font-family:var(--sans);
  font-weight:600;padding:10px 16px;border-radius:0 0 10px 10px;transition:top .18s}
.skip:focus{top:0}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(22,36,28,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(237,231,216,.1)}
.bar{display:flex;align-items:center;gap:20px;height:66px}
.brand{font-family:var(--serif);font-weight:600;font-size:21px;color:var(--tx-on);letter-spacing:.02em;display:flex;align-items:center;gap:9px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(203,122,28,.22);flex:0 0 auto}
nav.main{display:flex;gap:26px;margin-inline-start:14px}
nav.main a{color:var(--tx-on-mut);font-size:14.5px;font-weight:400;transition:.15s}
nav.main a:hover{color:var(--amber-bright)}
.hgroup{margin-inline-start:auto;display:flex;align-items:center;gap:12px}
.switch{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px;color:var(--tx-on-mut)}
select.sw{font-family:var(--mono);font-size:12px;background:var(--ink-2);color:var(--tx-on);border:1px solid rgba(237,231,216,.18);
  border-radius:8px;padding:7px 8px;cursor:pointer}
.menu-btn{display:none;background:none;border:0;color:var(--tx-on);cursor:pointer;padding:8px}
.menu-btn svg{width:24px;height:24px}

/* ---------- Hero ---------- */
.hero{background:var(--ink);color:var(--tx-on);position:relative;overflow:hidden;padding-top:clamp(56px,8vw,92px)}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(680px 420px at 82% 18%,rgba(203,122,28,.20),transparent 60%),
  radial-gradient(520px 520px at 12% 92%,rgba(36,64,47,.55),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,62px);color:var(--tx-on);margin:18px 0 20px;max-width:16ch}
.hero p.sub{font-size:clamp(16px,1.7vw,20px);color:var(--tx-on-mut);max-width:52ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.trust{margin-top:38px;padding-top:22px;border-top:1px solid rgba(237,231,216,.14)}
.trust .tl{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--tx-on-mut);margin-bottom:12px}
.trust ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.trust li{font-family:var(--mono);font-size:12px;color:var(--amber-soft);border:1px solid rgba(203,122,28,.35);
  border-radius:100px;padding:6px 13px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:20px;box-shadow:0 40px 90px -30px rgba(0,0,0,.7);aspect-ratio:3/3.4;object-fit:cover}
.hero-media .cap{position:absolute;inset-inline-start:16px;inset-block-end:16px;background:rgba(22,36,28,.82);
  backdrop-filter:blur(6px);border:1px solid rgba(203,122,28,.4);border-radius:12px;padding:10px 14px;font-family:var(--mono);font-size:12px;color:var(--amber-soft)}

/* ---------- Stats band ---------- */
.stats{background:var(--paper);border-block:1px solid var(--line);padding:44px 0}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat .v{font-family:var(--serif);font-size:clamp(26px,3vw,38px);font-weight:600;color:var(--ink);line-height:1}
.stat .v small{font-size:.5em;color:var(--amber);font-weight:600;font-family:var(--mono)}
.stat .l{font-size:13.5px;color:var(--tx-mut);margin-top:9px}

/* ---------- Section head ---------- */
.shead{max-width:64ch;margin-bottom:48px}
.shead h2{margin:14px 0 16px}

/* ---------- Products / assay cards ---------- */
.assays{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.assay{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.assay .ph{aspect-ratio:16/10;overflow:hidden;position:relative}
.assay .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.assay:hover .ph img{transform:scale(1.04)}
.assay .ph .tag{position:absolute;inset-block-start:14px;inset-inline-start:14px;background:var(--ink);color:var(--tx-on);
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:6px 12px;border-radius:100px}
.assay .body{padding:26px;display:flex;flex-direction:column;flex:1}
.assay h3{font-size:24px;color:var(--ink)}
.assay .sp{font-family:var(--mono);font-size:12.5px;color:var(--bark);margin-top:4px}
.spec{margin:20px 0;border-top:1px solid var(--line)}
.spec .row{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:12.5px;
  padding:9px 0;border-bottom:1px solid var(--line)}
.spec .row .k{color:var(--tx-mut);text-transform:uppercase;letter-spacing:.04em;font-size:11px}
.spec .row .val{color:var(--tx);text-align:end;font-weight:500}
.apps{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}
.apps span{font-size:12px;color:var(--tx-mut);background:var(--sand);border-radius:100px;padding:5px 11px}
.price{margin-top:auto;display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap;
  padding-top:16px;border-top:1px dashed var(--line)}
.price .pv{font-family:var(--serif);font-size:22px;font-weight:600;color:var(--ink)}
.price .pv .per{font-family:var(--mono);font-size:12px;color:var(--tx-mut);font-weight:400}

/* ---------- Process (dark) ---------- */
.proc{background:var(--ink);color:var(--tx-on)}
.proc .shead h2{color:var(--tx-on)}
.proc .lead{color:var(--tx-on-mut)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(237,231,216,.12);
  border:1px solid rgba(237,231,216,.12);border-radius:var(--r);overflow:hidden}
.step{background:var(--ink);padding:30px 26px}
.step .n{font-family:var(--mono);font-size:12px;color:var(--amber);letter-spacing:.1em}
.step h3{font-size:19px;color:var(--tx-on);margin:14px 0 9px}
.step p{font-size:14px;color:var(--tx-on-mut)}

/* ---------- Origin ---------- */
.origin .cols{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.origin img{border-radius:var(--r);box-shadow:0 30px 70px -34px rgba(22,36,28,.5);aspect-ratio:4/3.2;object-fit:cover}
.origin h2{margin-bottom:18px}
.origin p{margin-bottom:16px;color:var(--tx-mut)}
.origin .pts{list-style:none;margin-top:22px;display:grid;gap:12px}
.origin .pts li{display:flex;gap:12px;font-size:14.5px}
.origin .pts .mk{color:var(--amber);font-family:var(--mono);flex:0 0 auto}

/* ---------- Industries ---------- */
.ind{background:var(--paper);border-block:1px solid var(--line)}
.indgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.indcard{background:var(--bone);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.2s}
.indcard:hover{border-color:var(--amber);transform:translateY(-3px)}
.indcard .ic{width:40px;height:40px;color:var(--amber);margin-bottom:14px}
.indcard h3{font-size:19px;color:var(--ink);margin-bottom:8px}
.indcard p{font-size:14px;color:var(--tx-mut)}

/* ---------- Assurances (dark) ---------- */
.assure{background:var(--ink-2);color:var(--tx-on)}
.assure h2{color:var(--tx-on)}
.assure .g{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px}
.assure .item .ic{width:34px;height:34px;color:var(--amber-bright);margin-bottom:14px}
.assure .item h3{font-size:17px;color:var(--tx-on);margin-bottom:8px}
.assure .item p{font-size:13.5px;color:var(--tx-on-mut)}

/* ---------- Contact ---------- */
.contact .cols{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px}
.contact h2{margin-bottom:16px}
.cinfo p{color:var(--tx-mut);margin-bottom:22px;max-width:44ch}
.cinfo .lines{display:grid;gap:14px;font-family:var(--mono);font-size:13.5px}
.cinfo .lines .row{display:flex;align-items:center;gap:10px;color:var(--ink)}
.cinfo .lines .k{color:var(--tx-mut);min-width:84px}
form.quote{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:14px}
.field label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--tx-mut);margin-bottom:6px}
.field .req{color:var(--amber)}
.field input,.field select,.field textarea{width:100%;font-family:var(--sans);font-size:15px;color:var(--tx);
  background:var(--bone);border:1px solid var(--line);border-radius:9px;padding:11px 13px;transition:.15s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--amber);outline:none;background:#fff}
.field input:invalid:not(:placeholder-shown){border-color:#C4704E}
.field textarea{resize:vertical;min-height:96px}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.formmsg{font-size:14px;padding:11px 14px;border-radius:9px;margin-bottom:14px;display:none}
.formmsg.ok{display:block;background:#E7F0E4;color:#204426;border:1px solid #B7D2AE}
.formmsg.err{display:block;background:#F6E2DA;color:#7A2E17;border:1px solid #E2B7A6}
.spin{width:15px;height:15px;border:2px solid rgba(38,22,10,.35);border-top-color:#26160a;border-radius:50%;
  display:inline-block;animation:sp .7s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:var(--tx-on-mut);padding:56px 0 30px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(237,231,216,.12)}
footer .brand{color:var(--tx-on);margin-bottom:14px}
footer .ftag{font-size:14px;max-width:36ch}
.fcol h4{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);margin-bottom:14px;font-weight:500}
.fcol a{display:block;font-size:14px;margin-bottom:9px;color:var(--tx-on-mut)}
.fcol a:hover{color:var(--amber-bright)}
.fbot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:12.5px;font-family:var(--mono)}
.fbot .disc{max-width:66ch;color:var(--tx-on-mut);opacity:.8}

/* ---------- Reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* ---------- RTL ---------- */
html[dir="rtl"] .hero .wrap{direction:rtl}
html[dir="rtl"] .price .val,html[dir="rtl"] .spec .row .val{text-align:start}

/* ---------- Responsive ---------- */
@media(max-width:940px){
  nav.main,.hgroup .switch-lab{display:none}
  .menu-btn{display:block}
  .hgroup{margin-inline-start:auto}
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1;max-width:420px}
  .stats .grid{grid-template-columns:1fr 1fr;gap:26px 20px}
  .assays,.origin .cols,.contact .cols{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .indgrid{grid-template-columns:1fr 1fr}
  .assure .g{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .frow{grid-template-columns:1fr}
  .indgrid,.assure .g,.fgrid{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:1fr 1fr}
}
nav.mobile{display:none;flex-direction:column;gap:2px;padding:12px 24px 18px;background:var(--ink-2);border-top:1px solid rgba(237,231,216,.1)}
nav.mobile.open{display:flex}
nav.mobile a{color:var(--tx-on);padding:11px 0;font-size:16px;border-bottom:1px solid rgba(237,231,216,.08)}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.rv{transition:none;opacity:1;transform:none}.assay:hover .ph img{transform:none}.spin{animation:none}}