:root{--ink:#1A1B1D;--graphite:#26282B;--graphite2:#1E2022;--steel:#6B6B6B;--steell:#9A9A9A;
--copper:#B86D4A;--copperh:#C67C52;--copperd:#7E4529;--paper:#FAFAF9;--off:#F1F0EE;--line:#E4E1DD;--dline:#34373B;
--sans:'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}
html,body{overflow-x:hidden;max-width:100%}
body{font-family:var(--sans);color:#222;background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--copper)}
h1,h2,h3{font-weight:800;letter-spacing:-.01em;line-height:1.1;color:var(--ink)}
.btn{display:inline-block;font-weight:700;font-size:14px;letter-spacing:.3px;padding:14px 26px;border-radius:2px;transition:.15s;cursor:pointer;border:0}
.btn-copper{background:var(--copper);color:#fff}.btn-copper:hover{background:var(--copperh)}
.btn-ghost{border:2px solid rgba(255,255,255,.35);color:#fff;background:transparent}.btn-ghost:hover{border-color:var(--copper);color:var(--copper)}
.steelbar{height:5px;background:linear-gradient(90deg,#2b2d30,#9a9a9a 40%,#cfd2d3 50%,#9a9a9a 60%,#2b2d30)}
header{background:#fff;position:sticky;top:0;z-index:60;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:84px}
.nav .brand img{height:54px;display:block}
.menu{display:flex;gap:28px;align-items:center}
.menu a,.menu a:visited{color:#3a3c3f;font-size:14px;font-weight:600}
.menu a:hover,.menu a.active{color:var(--copper)}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:9px}
.burger span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:.25s}
.nav.open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.open .burger span:nth-child(2){opacity:0}
.nav.open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:900px){.burger{display:flex}
.menu{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 0 14px;display:none;box-shadow:0 24px 40px -22px rgba(0,0,0,.35)}
.nav.open .menu{display:flex}.menu a{padding:15px 32px;font-size:16px}.menu .btn{margin:12px 32px 4px;text-align:center}}
section{padding:80px 0}
.sec-head{max-width:720px;margin-bottom:44px}.sec-head h2{font-size:clamp(26px,4vw,34px);margin:14px 0 12px}
.sec-head h2::after{content:"";display:block;height:5px;margin-top:16px;max-width:520px;background:linear-gradient(90deg,var(--copper) 0 40%,#e3e0dc 40% 100%)}
.sec-head p{color:var(--steel);font-size:17px}
/* hero */
.hero{background:var(--graphite2);color:#eceae7;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:80px 0;position:relative}
.hero h1{color:#fff;font-size:clamp(34px,6vw,52px);margin:18px 0 20px}.hero p.lead{font-size:clamp(16px,2.4vw,19px);color:#b7b4b0;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-fig{border:1px solid var(--dline);border-radius:4px;overflow:hidden}
.stats{display:flex;gap:38px;margin-top:44px;padding-top:26px;border-top:1px solid var(--dline)}
.stat b{display:block;font-size:26px;color:var(--copper);font-weight:800}.stat span{font-size:12.5px;color:#9a9a9a;letter-spacing:.4px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;padding:48px 0}.hero-fig{margin-top:8px}.stats{flex-wrap:wrap;gap:24px}}
@media(max-width:600px){section{padding:52px 0}.wrap{padding:0 20px}.sec-head{margin-bottom:30px}.hero-cta .btn{width:100%;text-align:center}.banner{padding:44px 0}.stats{gap:18px 28px}}
/* page banner */
.banner{background:var(--graphite2);color:#fff;position:relative;overflow:hidden;padding:64px 0}
.banner::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(circle at 70% 40%,#000,transparent 75%);opacity:.5}
.banner h1{color:#fff;font-size:clamp(30px,5vw,44px);position:relative}
.banner .crumb{position:relative;font-size:13px;color:#9a9a9a;margin-top:12px;letter-spacing:.5px}
.banner .crumb a:hover{color:var(--copper)}
/* cards grid */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);border:1px solid var(--line)}
.cap{background:#fff;padding:0;overflow:hidden;transition:.15s;border-top:3px solid transparent;display:block}
.cap:hover{border-top-color:var(--copper)}
.cap-img{height:150px;border-bottom:1px solid var(--line);overflow:hidden}.cap-img svg{width:100%;height:100%;display:block;transition:.4s}.cap:hover .cap-img svg{transform:scale(1.05)}
.cap-pad{padding:24px 26px 28px}.cap .n{font-size:13px;font-weight:800;color:var(--copper);letter-spacing:1px}.cap h3{font-size:18px;margin:8px 0 8px}.cap p{font-size:14.5px;color:var(--steel)}
.cap .more{display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--copper)}
@media(max-width:900px){.cap-grid{grid-template-columns:1fr}}
/* service detail rows */
.svc{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;padding:46px 0;border-bottom:1px solid var(--line)}
.svc:nth-child(even){direction:rtl}.svc:nth-child(even)>*{direction:ltr}
.svc-fig{border:1px solid var(--line);border-radius:6px;overflow:hidden}.svc-fig svg{width:100%;height:auto;display:block}
.svc h3{font-size:22px;margin-bottom:8px}.svc .lead{color:var(--steel);font-size:16px;margin-bottom:14px}
.svc ul{list-style:none}.svc li{position:relative;padding:8px 0 8px 22px;font-size:15px;border-bottom:1px solid #eceae7}
.svc li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:8px;background:var(--copper)}
@media(max-width:900px){.svc{display:flex;flex-direction:column;gap:16px;direction:ltr;padding:34px 0}.svc-fig{order:2}}
/* industries */
.indus{background:var(--ink);color:#dcd9d5}.indus h2{color:#fff}
.ind-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--dline);border:1px solid var(--dline);margin-top:34px}
.ind-grid div{background:var(--ink);padding:24px}.ind-grid h3{color:#fff;font-size:17px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.ind-grid h3::before{content:"";width:9px;height:9px;background:var(--copper)}
.ind-grid p{color:#9a9a9a;font-size:14px}
@media(max-width:900px){.ind-grid{grid-template-columns:1fr}}
/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr)}.step{padding:26px 22px;border-left:2px solid var(--line)}.step:first-child{border-left:none}
.step .num{font-size:40px;font-weight:800;color:#e7e4e0;line-height:1}.step h3{font-size:17px;margin:8px 0 6px}.step p{font-size:13.5px;color:var(--steel)}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}.step{border-left:none;border-top:2px solid var(--line)}}
/* why + values */
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px}
.two li{list-style:none;display:flex;gap:14px;font-size:15.5px;padding:14px 0;border-bottom:1px solid var(--line)}.two li b{color:var(--copper)}
@media(max-width:900px){.two{grid-template-columns:1fr}}
.vcards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:10px}
.vcard{background:#fff;border:1px solid var(--line);border-radius:6px;padding:24px}.vcard b{color:var(--copper);font-size:16px;display:block;margin-bottom:6px}.vcard p{color:var(--steel);font-size:14.5px}
@media(max-width:900px){.vcards{grid-template-columns:1fr}}
/* cta */
.cta{background:var(--graphite);color:#fff;text-align:center}.cta h2{color:#fff;font-size:clamp(26px,4vw,34px)}.cta p{color:#b7b4b0;margin:14px auto 28px;max-width:560px;font-size:17px}
/* contact */
.cwrap{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.field input,.field textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:4px;font-family:inherit;font-size:15px;background:#fff}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--copper)}
.info-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-row .ic{width:40px;height:40px;flex:0 0 40px;border-radius:4px;background:var(--off);display:flex;align-items:center;justify-content:center;color:var(--copper);font-weight:800}
.info-row b{display:block;font-size:15px}.info-row span{color:var(--steel);font-size:14px}
@media(max-width:900px){.cwrap{grid-template-columns:1fr}}
/* footer */
footer{background:var(--ink);color:#9a9a9a;padding:56px 0 30px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid var(--dline)}
.foot-brand{display:flex;align-items:center;gap:14px;margin-bottom:16px}.foot-brand img{height:50px}.foot-brand .wm{font-weight:800;color:#fff;font-size:15px;line-height:1.15}.foot-brand .wm small{display:block;font-size:10px;letter-spacing:4px;color:#9a9a9a;font-weight:600}
footer h4{color:#fff;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;color:#9a9a9a;padding:5px 0}footer a:hover{color:var(--copper)}
.foot-bot{display:flex;justify-content:space-between;padding-top:22px;font-size:12.5px;color:#6f7175;flex-wrap:wrap;gap:8px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr;gap:26px}}
/* ---- Simulation / PrecisionFlow ---- */
.btn-launch{background:var(--copper);color:#fff;display:inline-flex;align-items:center;gap:9px;box-shadow:0 8px 22px -8px rgba(184,109,74,.6)}
.btn-launch:hover{background:var(--copperh);transform:translateY(-1px)}
.simband{background:var(--graphite2);color:#eceae7;position:relative;overflow:hidden;border-top:1px solid var(--dline);border-bottom:1px solid var(--dline)}
.simband::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(circle at 78% 30%,#000,transparent 72%);opacity:.55}
.simband .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:78px 32px}
.simband .tag{display:inline-block;font-family:var(--mono,monospace);font-size:12px;font-weight:800;letter-spacing:2px;color:var(--copper);text-transform:uppercase}
.simband h2{color:#fff;font-size:clamp(28px,4vw,38px);margin:14px 0 14px}
.simband p{color:#b7b4b0;font-size:17px;max-width:520px}
.simfeat{display:flex;gap:16px;margin:24px 0 30px;flex-wrap:wrap}
.simfeat div{flex:1 1 150px;min-width:150px}
.simfeat b{color:var(--copper);font-size:15px;display:block;margin-bottom:4px}
.simfeat span{color:#9a9a9a;font-size:13.5px}
.simband .cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.simband .note{color:#8a8d90;font-size:12.5px}
@media(max-width:900px){.simband .wrap{grid-template-columns:1fr;padding:52px 20px}}
.simfig{border:1px solid var(--dline);border-radius:8px;overflow:hidden;background:#15171a}
.simcards{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);border:1px solid var(--line);margin-top:8px}
.simcard{background:#fff;padding:26px 24px}.simcard .k{font-family:var(--mono,monospace);color:var(--copper);font-weight:800;font-size:13px;letter-spacing:1px}
.simcard h3{font-size:18px;margin:8px 0 8px}.simcard p{color:var(--steel);font-size:14.5px}
@media(max-width:900px){.simcards{grid-template-columns:1fr}}
.simmap{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px;margin-top:30px}
.simmap li{list-style:none;display:flex;gap:12px;font-size:15px;padding:12px 0;border-bottom:1px solid var(--line)}
.simmap li b{color:var(--copper)}
@media(max-width:900px){.simmap{grid-template-columns:1fr}}