:root{--ink:#0f2230;--teal:#0f6b6b;--teal2:#14908f;--sand:#f4f1ea;--line:#dfe4e6;--mute:#5b6b75}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.6;background:#fff}
a{color:var(--teal)}img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-weight:800;font-size:22px;letter-spacing:.3px;color:var(--ink);text-decoration:none}
.brand span{color:var(--teal)}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:2px;color:var(--mute);text-transform:uppercase;margin-top:-4px}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:14.5px}
nav a:hover{color:var(--teal)}
.btn{display:inline-block;background:var(--teal);color:#fff!important;padding:12px 22px;border-radius:6px;text-decoration:none;font-weight:700}
.btn.ghost{background:transparent;border:2px solid #fff}
.menu-t{display:none;background:none;border:0;font-size:26px}
.hero{position:relative;color:#fff;min-height:560px;display:flex;align-items:center;background:#0f2230 url(img/hero.jpg) center/cover}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,30,40,.92),rgba(10,30,40,.55))}
.hero .wrap{position:relative}
.hero h1{font-size:50px;line-height:1.1;margin:0 0 18px;max-width:760px}
.hero p{font-size:19px;max-width:640px;opacity:.92}
.hero .cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.badges span{border:1px solid rgba(255,255,255,.4);padding:6px 12px;border-radius:30px;font-size:13px;font-weight:600}
section{padding:80px 0}
.alt{background:var(--sand)}
h2{font-size:34px;margin:0 0 12px}
.lead{color:var(--mute);font-size:18px;max-width:760px;margin-bottom:36px}
.eyebrow{color:var(--teal);font-weight:800;letter-spacing:2px;font-size:12px;text-transform:uppercase}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{border-left:4px solid var(--teal);padding:8px 18px}
.stat b{font-size:34px;display:block}
.stat span{color:var(--mute);font-size:14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.card img{height:190px;width:100%;object-fit:cover}
.card .in{padding:18px 20px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--mute);font-size:14.5px}
.rounded{border-radius:12px}
.sys{display:block;padding:26px;border-radius:10px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--ink);transition:.2s}
.sys:hover{border-color:var(--teal);transform:translateY(-2px)}
.sys b{font-size:18px;display:block;margin-bottom:6px}.sys span{color:var(--mute);font-size:14px}
.certs li{margin:6px 0}
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.team div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px}
.team b{display:block}.team span{color:var(--mute);font-size:14px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.timeline div{border-top:3px solid var(--teal);padding-top:10px;font-size:14.5px}
.timeline b{color:var(--teal);font-size:20px;display:block}
.contact{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.contact div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px}
.contact h3{margin:0 0 6px}
form.rfq{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:10px}
form.rfq input,form.rfq select,form.rfq textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:6px;font:inherit}
form.rfq textarea,form.rfq .full{grid-column:1/-1}
footer{background:var(--ink);color:#c9d3d8;padding:50px 0 30px;font-size:14px}
footer a{color:#fff}
.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.copy{border-top:1px solid #2a3f4c;margin-top:30px;padding-top:18px;color:#8ea0aa}
/* products */
.ph{background:var(--ink);color:#fff;padding:60px 0 40px}
.ph h1{margin:0;font-size:40px}
.tools{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
.tools input{flex:1;min-width:240px;padding:14px;border:1px solid var(--line);border-radius:8px;font-size:16px}
.chip{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:30px;cursor:pointer;font-weight:600;font-size:14px}
.chip.on{background:var(--teal);color:#fff;border-color:var(--teal)}
.sysblock{margin-bottom:46px}
.sysblock>h2{font-size:26px;border-bottom:2px solid var(--teal);padding-bottom:8px}
.catblock{margin:24px 0}
.catblock h3{font-size:17px;margin:0 0 10px;color:var(--teal)}
.plist{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px}
.prod{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:#fff;font-weight:700;font-size:14.5px}
.prod a{font-size:12.5px;font-weight:700;text-decoration:none;white-space:nowrap}
.count{color:var(--mute);font-size:14px}
.notice{background:#eef6f6;border:1px solid #cfe6e6;padding:14px 18px;border-radius:8px;color:#244}
@media(max-width:900px){.hero h1{font-size:36px}.stats,.grid4,.timeline{grid-template-columns:1fr 1fr}.grid2,.grid3,.team,.contact,.fgrid,form.rfq{grid-template-columns:1fr}
nav ul{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;border-bottom:1px solid var(--line)}nav ul.open{display:flex}.menu-t{display:block}}