/* =========================================================
   BORUN METAL — Foreign Trade B2B Site
   Industrial navy + steel + safety orange
   ========================================================= */
:root{
  --navy:#0e2a3f; --navy-2:#143a57; --navy-3:#1d4e70;
  --steel:#5b6b78; --accent:#ff6a13; --accent-2:#f4a300;
  --bg:#f6f8fa; --bg-2:#eef2f5; --ink:#1c2b36; --muted:#6b7c8a;
  --line:#e3e9ee; --ok:#1f9d6b;
  --shadow:0 12px 34px rgba(14,42,63,.10);
  --maxw:1180px; --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter","Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:74px 0}
.section.sm{padding:48px 0}
.section.tint{background:var(--white)}
.eyebrow{color:var(--accent);font-weight:800;letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin-bottom:10px}
.h2{font-size:clamp(26px,3.4vw,38px);line-height:1.2;color:var(--navy);font-weight:800;letter-spacing:-.01em}
.h3{font-size:22px;color:var(--navy);font-weight:800}
.lead{color:var(--muted);font-size:17px;max-width:760px;margin-top:14px}
.muted{color:var(--muted)}
.center{text-align:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;transition:.2s;cursor:pointer;border:2px solid transparent;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#ee5a04;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--navy)}
.btn-outline:hover{border-color:var(--navy)}
.btn.sm{padding:9px 18px;font-size:14px}

/* Top bar */
.topbar{background:var(--navy);color:#cfe0ec;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:40px;gap:14px}
.topbar a:hover{color:#fff}
.tb-right{display:flex;gap:18px;align-items:center;white-space:nowrap}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;margin-right:7px;vertical-align:middle}

/* Header */
.header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy);font-size:19px;letter-spacing:.03em;line-height:1.1}
.logo .mark{width:40px;height:40px;flex:none}
.logo small{display:block;font-size:10.5px;color:var(--muted);font-weight:700;letter-spacing:.16em}
.nav{display:flex;gap:4px;align-items:center}
.nav a{padding:9px 14px;border-radius:8px;font-weight:600;color:var(--ink);font-size:15px}
.nav a:hover{background:var(--bg-2);color:var(--navy)}
.nav a.active{color:var(--accent)}
.nav .hi{background:var(--accent);color:#fff;margin-left:6px}
.nav .hi:hover{background:#ee5a04;color:#fff}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:2px;background:var(--navy);display:block;border-radius:2px;transition:.25s}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;background:
  radial-gradient(1100px 460px at 82% -12%,rgba(244,163,0,.28),transparent 62%),
  linear-gradient(135deg,#0b2233 0%,var(--navy) 42%,var(--navy-3) 100%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;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:linear-gradient(115deg,transparent 10%,#000 55%);
  mask-image:linear-gradient(115deg,transparent 10%,#000 55%)}
.hero .wrap{position:relative;z-index:2;padding:90px 22px 80px}
.hero .kicker{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;color:#e6f0f7}
.hero h1{margin-top:22px;font-size:clamp(30px,5vw,56px);line-height:1.07;font-weight:800;letter-spacing:-.02em;max-width:900px}
.hero h1 .hl{color:var(--accent-2)}
.hero p.sub{margin-top:20px;font-size:18px;color:#d7e4ee;max-width:660px}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{margin-top:42px;display:flex;gap:12px;flex-wrap:wrap}
.badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:10px 16px;border-radius:10px;
  font-size:14px;font-weight:600;display:flex;align-items:center;gap:9px}
.badge svg{width:18px;height:18px;flex:none;color:var(--accent-2)}

/* Stats */
.stats{background:var(--navy-3);color:#fff}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:32px 20px;text-align:center;border-right:1px solid rgba(255,255,255,.13)}
.stat:last-child{border-right:0}
.stat .num{font-size:33px;font-weight:800;color:#fff;letter-spacing:-.02em}
.stat .num span{color:var(--accent-2)}
.stat .lab{font-size:13px;color:#bcd0de;margin-top:6px}

/* Cards */
.cards{display:grid;gap:22px}
.c3{grid-template-columns:repeat(3,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}
.c2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#d3dde4}
.card .ic{width:50px;height:50px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--navy-3));
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);margin-bottom:16px}
.card .ic svg{width:25px;height:25px}
.card h3{font-size:19px;color:var(--navy);margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.card .more{display:inline-block;margin-top:14px;color:var(--accent);font-weight:700;font-size:14px}
.card .more:hover{text-decoration:underline}

/* Head */
.head{max-width:780px;margin-bottom:40px}
.head.center{margin-left:auto;margin-right:auto;text-align:center}

/* Process */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:p}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 20px}
.step .n{counter-increment:p;font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.1em}
.step .n::before{content:"0" counter(p)}
.step h4{margin:10px 0 6px;color:var(--navy);font-size:16.5px}
.step p{font-size:14px;color:var(--muted)}

/* Feature split */
.feat{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.visual{aspect-ratio:4/3;border-radius:var(--r);background:linear-gradient(135deg,var(--navy),var(--navy-3));
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.visual::after{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:32px 32px}
.visual svg{width:58%;opacity:.95;position:relative;z-index:2;color:var(--accent-2)}
.visual .tag{position:absolute;left:16px;bottom:14px;background:rgba(0,0,0,.38);color:#fff;font-size:12px;padding:6px 12px;border-radius:8px;z-index:3}
ul.ticks{list-style:none;margin-top:18px;display:grid;gap:12px}
ul.ticks li{display:flex;gap:12px;align-items:flex-start;font-size:15px}
ul.ticks svg{width:20px;height:20px;color:var(--ok);flex:none;margin-top:3px}

/* Certs */
.certs{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.cert{width:132px;height:86px;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;
  flex-direction:column;align-items:center;justify-content:center;gap:7px;color:var(--navy);font-weight:700;font-size:13.5px}
.cert .ring{width:30px;height:30px;border-radius:50%;border:2px solid var(--accent-2);display:flex;
  align-items:center;justify-content:center;color:var(--accent-2);font-size:12px;font-weight:800}

/* CTA band */
.ctaband{background:linear-gradient(135deg,var(--accent),#e85500);color:#fff;text-align:center}
.ctaband .wrap{padding:58px 22px}
.ctaband h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.ctaband p{margin:12px auto 24px;max-width:640px;opacity:.96}
.ctaband .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.ctaband .btn-ghost{border-color:rgba(255,255,255,.7)}

/* Tables */
.table{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg-2);color:var(--navy);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}

/* Product blocks */
.pblock{display:grid;grid-template-columns:.88fr 1.12fr;gap:34px;padding:44px 0;border-bottom:1px solid var(--line);align-items:start}
.pblock:last-child{border-bottom:0}
.pblock .pic{aspect-ratio:1/.78;border-radius:var(--r);background:linear-gradient(135deg,var(--navy),var(--navy-3));
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);position:relative;overflow:hidden}
.pblock .pic::after{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:28px 28px}
.pblock .pic svg{width:44%;position:relative;z-index:2}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 14px}
.tagchip{background:var(--bg-2);color:var(--navy);font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:999px}
.spec{margin-top:16px;font-size:14.5px}
.spec dt{font-weight:700;color:var(--navy);display:inline}
.spec dd{display:inline;color:var(--muted);margin:0 0 0 6px}
.spec div{padding:6px 0;border-bottom:1px dashed var(--line)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font:inherit;color:var(--ink);background:#fff}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--navy-3);box-shadow:0 0 0 3px rgba(29,78,112,.12)}
.field textarea{resize:vertical;min-height:118px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.req{color:var(--accent)}
.hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.formnote{margin-top:14px;font-size:13px;color:var(--muted)}
.ok-msg{display:none;background:#e8f8f1;border:1px solid #b9e7d3;color:#0d6b48;padding:12px 14px;border-radius:10px;font-size:14px;margin-bottom:16px}
.info-card{background:var(--navy);color:#dce8f0;border-radius:var(--r);padding:30px}
.info-card h3{color:#fff;font-size:20px;margin-bottom:6px}
.info-card .line{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.info-card .line:last-child{border-bottom:0}
.info-card .line svg{width:20px;height:20px;color:var(--accent-2);flex:none;margin-top:3px}
.info-card a:hover{color:var(--accent-2)}
.map{margin-top:20px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--bg-2);
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;text-align:center;padding:20px}
.map iframe{width:100%;height:100%;border:0;display:block}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:800}
.faq details[open] summary::after{content:"–"}
.faq p{margin-top:10px;color:var(--muted);font-size:15px}

/* Footer */
.footer{background:#0a1e2d;color:#9fb6c6;font-size:14.5px;padding:56px 0 0}
.footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.04em}
.footer a:hover{color:var(--accent-2)}
.footer ul{list-style:none;display:grid;gap:9px}
.footer .brand .logo{color:#fff}
.footer .brand .logo small{color:#7f9aad}
.footer .brand p{margin-top:14px;max-width:320px;color:#8ba4b5}

/* ---------- Real product photos ---------- */
.card .cardimg{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;margin-bottom:16px;border:1px solid var(--line);background:#eef2f5}
.pblock .pic img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);display:block}
.feat .visual img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);display:block}
.feat .visual.photo{background:#0e2a3f;padding:0;border:0}
.feat .visual.photo img{aspect-ratio:4/3}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery figure{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;transition:.2s}
.gallery figure:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block}
.gallery figcaption{padding:10px 12px;font-size:13px;color:var(--navy);font-weight:600;line-height:1.4}
.footer .bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#7f9aad}

/* Float contact */
.float{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;gap:10px}
.float a{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.22);transition:.2s}
.float a:hover{transform:translateY(-2px)}
.float .wa{background:#25d366}
.float .em{background:var(--accent)}
.float svg{width:26px;height:26px}

/* Page hero (inner pages) */
.phero{background:linear-gradient(135deg,#0b2233,var(--navy-2));color:#fff;padding:56px 0 50px;position:relative;overflow:hidden}
.phero::after{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:42px 42px;-webkit-mask-image:linear-gradient(115deg,transparent 20%,#000 70%);mask-image:linear-gradient(115deg,transparent 20%,#000 70%)}
.phero .wrap{position:relative;z-index:2}
.phero h1{font-size:clamp(26px,3.8vw,42px);font-weight:800;letter-spacing:-.01em}
.phero p{margin-top:12px;color:#cfe0ec;max-width:700px}
.crumb{margin-top:14px;font-size:13.5px;color:#9fb6c6}
.crumb a:hover{color:#fff}
.crumb span{color:var(--accent-2)}

/* Responsive */
@media (max-width:980px){
  .feat,.contact-grid,.pblock{grid-template-columns:1fr;gap:28px}
  .c4{grid-template-columns:repeat(2,1fr)}
  .c3{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
  .stats .grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid rgba(255,255,255,.13)}
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:760px){
  .topbar .tb-left{display:none}
  .burger{display:flex}
  .nav{position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;
    padding:12px 16px;gap:2px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .nav.open{display:flex}
  .nav a{padding:13px 14px}
  .nav .hi{margin-left:0;text-align:center}
  .header .wrap{position:relative}
  .c4,.c3,.c2{grid-template-columns:1fr}
  .process{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .hero .wrap{padding:64px 22px 58px}
  .section{padding:54px 0}
}

/* 50-product grid */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:18px;margin-top:26px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.pcard:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(14,42,63,.12)}
.pcard img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--bg-2)}
.pcard .body{padding:12px 14px 16px}
.pcard h4{font-size:15px;color:var(--navy);margin:0 0 4px;line-height:1.3}
.pcard p{font-size:13px;color:var(--muted);margin:0}