:root{--navy:#0b1b2b;--navy2:#12283d;--blue:#1d74e6;--blue-d:#1557b0;--orange:#ff7a1a;--ink:#15202b;--muted:#5b6b7c;--line:#e3e9ef;--bg:#ffffff;--soft:#f5f8fb;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-d)}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em}
h1{font-size:clamp(30px,4.4vw,52px);letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.01em}
h3{font-size:19px}
p{margin:0 0 1em}
section{padding:72px 0}
.lead{font-size:18px;color:var(--muted)}
.center{text-align:center}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);font-weight:700;margin-bottom:14px}
.topbar{background:var(--navy);color:#9fb3c8;font-size:13px;padding:8px 0;border-bottom:1px solid #1c3247}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar a{color:#cfe0f0}
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.navwrap{display:flex;align-items:center;gap:20px;height:70px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--navy)}
.logo span{color:var(--blue)}
.nav{margin-left:auto;display:flex;align-items:center;gap:22px}
.nav>a{color:var(--ink);font-weight:600;font-size:15px}
.nav>a.active,.nav>a:hover{color:var(--blue)}
.dropdown{position:relative}
.mega{display:none;position:absolute;top:30px;left:-10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px rgba(11,27,43,.14);padding:16px;min-width:340px;z-index:60}
.dropdown:hover .mega{display:block}
.mega ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:2px 18px}
.mega li a{display:block;padding:6px 8px;border-radius:6px;font-size:14px;color:var(--ink)}
.mega li a:hover{background:var(--soft);color:var(--blue)}
.mega-all{display:block;margin-top:12px;font-size:14px;font-weight:700}
.btn-quote{background:var(--blue);color:#fff!important;padding:10px 18px;border-radius:8px;font-weight:700;font-size:14px}
.btn-quote:hover{background:var(--blue-d)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;font-size:20px;padding:4px 12px;cursor:pointer}
.hero{background:linear-gradient(135deg,#0b1b2b 0%,#123253 55%,#0e2a44 100%);color:#fff;padding:96px 0 84px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 70%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{color:#fff}
.hero p{color:#c9d9e8;font-size:18px;max-width:640px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 30px}
.btn{display:inline-block;padding:14px 26px;border-radius:10px;font-weight:700;font-size:15px;transition:.2s}
.btn-solid{background:var(--orange);color:#fff}
.btn-solid:hover{background:#ef6a08;color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap;margin-top:8px}
.hero-stats div b{display:block;font-size:26px;color:#fff}
.hero-stats div span{font-size:13px;color:#96b0c8}
.hero-art{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:18px;backdrop-filter:blur(4px)}
.hero-art img{border-radius:12px;background:#fff}
.hero-art .caption{color:#9fb8cf;font-size:12px;margin-top:12px;text-align:center}
.strip{background:var(--soft);border-bottom:1px solid var(--line);padding:22px 0}
.strip .wrap{display:flex;gap:36px;flex-wrap:wrap;justify-content:space-between;font-size:14px;color:var(--muted)}
.strip b{color:var(--ink)}
.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(11,27,43,.10)}
.card .num{width:38px;height:38px;border-radius:10px;background:var(--soft);color:var(--blue);font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.card p{color:var(--muted);font-size:15px;margin:0}
.catgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:22px}
.catcard{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.2s}
.catcard:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(11,27,43,.12)}
.catcard img{width:100%;height:170px;object-fit:cover;background:var(--soft)}
.catcard .cb{padding:16px 18px}
.catcard h3{font-size:17px;margin:0 0 4px}
.catcard span{color:var(--muted);font-size:13px}
.catcard .cnt{position:absolute;top:12px;right:12px;background:rgba(11,27,43,.82);color:#fff;font-size:12px;padding:4px 10px;border-radius:20px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:22px}
.pcard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:.2s;color:inherit}
.pcard:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(11,27,43,.12);color:inherit}
.pimg{height:200px;background:var(--soft);display:flex;align-items:center;justify-content:center;overflow:hidden}
.pimg img{width:100%;height:100%;object-fit:contain;transition:.3s}
.pcard:hover .pimg img{transform:scale(1.04)}
.pbody{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.pbody h3{font-size:15px;margin:0;line-height:1.4}
.ptags{display:flex;flex-wrap:wrap;gap:6px}
.ptags span{background:var(--soft);color:var(--muted);font-size:11px;padding:3px 8px;border-radius:20px}
.pmore{margin-top:auto;font-size:13px;font-weight:700;color:var(--blue)}
.crumbs{background:var(--soft);border-bottom:1px solid var(--line);font-size:13px;padding:12px 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;color:var(--muted)}
.crumbs li+li:before{content:"/";margin-right:8px;color:#b9c6d3}
.product-main{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:48px 0 24px}
.gallery img.main-img{width:100%;border:1px solid var(--line);border-radius:var(--radius);background:#fff;aspect-ratio:1/1;object-fit:contain}
.thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.thumbs img{width:74px;height:74px;object-fit:contain;border:1px solid var(--line);border-radius:10px;cursor:pointer;background:#fff}
.thumbs img.on{border-color:var(--blue);box-shadow:0 0 0 2px rgba(29,116,230,.18)}
.pinfo h1{font-size:clamp(24px,2.6vw,34px);margin-bottom:10px}
.pinfo .code{color:var(--muted);font-size:14px;margin-bottom:18px}
.featlist{list-style:none;padding:0;margin:0 0 24px}
.featlist li{padding:7px 0 7px 26px;position:relative;font-size:15px;border-bottom:1px dashed var(--line)}
.featlist li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
.spectable{width:100%;border-collapse:collapse;font-size:15px;margin-bottom:26px}
.spectable th,.spectable td{border-bottom:1px solid var(--line);padding:11px 12px;text-align:left}
.spectable th{width:38%;color:var(--muted);font-weight:600;background:var(--soft)}
.cta-box{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.cta-box h3{margin-top:0}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:17px}
.faq p{color:var(--muted);margin:12px 0 0}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:relative}
.steps li:before{counter-increment:s;content:counter(s);width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:14px}
.steps h4{margin:0 0 6px;font-size:16px}
.steps p{margin:0;color:var(--muted);font-size:14px}
.site-footer{background:var(--navy);color:#a9bdd0;padding:64px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.site-footer .logo{color:#fff}
.site-footer .logo span{color:var(--orange)}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#a9bdd0}
.site-footer a:hover{color:#fff}
.site-footer .btn-solid{display:inline-block;margin-top:10px}
.copy{border-top:1px solid #1c3247;margin-top:40px;padding-top:18px;color:#7c93a8;font-size:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--ink)}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid #cfdae4;border-radius:10px;font:inherit;font-size:15px;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(29,116,230,.35);border-color:var(--blue)}
textarea{min-height:130px;resize:vertical}
.form-note{font-size:13px;color:var(--muted);margin-top:10px}
.form-msg{margin-top:14px;font-size:14px;font-weight:700}
.ok{color:#0f8a4a}.err{color:#c62828}
.prose{max-width:820px}
.prose h2{margin-top:44px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.badges span{background:var(--soft);border:1px solid var(--line);border-radius:20px;padding:5px 12px;font-size:12px;color:var(--muted)}
.to-top{position:fixed;right:18px;bottom:18px;background:var(--navy);color:#fff;border:none;border-radius:50%;width:44px;height:44px;cursor:pointer;display:none;font-size:18px}
.to-top.show{display:block}
@media(max-width:980px){
 .hero .wrap{grid-template-columns:1fr}
 .hero-art{display:none}
 .product-main{grid-template-columns:1fr;gap:28px}
 .g3,.g4,.g2,.steps{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
 .menu-btn{display:block}
 .nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:14px 24px;gap:14px}
 body.nav-open .nav{display:flex}
 .nav .mega{display:none!important}
 .g3,.g4,.g2,.steps,.form-grid,.footer-grid{grid-template-columns:1fr}
 section{padding:52px 0}
}