:root{
  --bg:#0b1220;
  --bg2:#101a2d;
  --card:#ffffff;
  --text:#162033;
  --muted:#667085;
  --line:#e7eaf0;
  --brand:#0f3b63;
  --brand2:#1f6f8b;
  --accent:#f59e0b;
  --soft:#f6f8fb;
  --white:#fff;
  --shadow:0 18px 45px rgba(16,24,40,.13);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff;line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,92%);margin:0 auto}
.topbar{background:#07101f;color:#dbe7f4;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.2px;min-width:max-content}
.mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 8px 18px rgba(15,59,99,.25)}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.8px;text-transform:uppercase;margin-top:-2px}
.navlinks{display:flex;align-items:center;gap:18px;font-size:14px;color:#344054;font-weight:600}
.navlinks a:hover{color:var(--brand)}
.lang-switch{display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:5px;background:#fff}
.lang-switch a{font-size:12px;font-weight:800;color:#475467;padding:5px 8px;border-radius:999px}
.lang-switch a.active{background:var(--brand);color:#fff}
.lang-switch.mobile{display:none}
.nav-cta{white-space:nowrap;flex:0 0 auto}
.btn{white-space:nowrap}
.menu-btn{display:none;border:1px solid #d0d5dd;background:#fff;border-radius:10px;padding:8px 11px;font-size:20px;color:#344054}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.2s ease;background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(15,59,99,.18)}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 26px rgba(15,59,99,.24)}
.btn.secondary{background:#fff;color:var(--brand);border:1px solid #c9d7e5;box-shadow:none}
.btn.accent{background:var(--accent);color:#111827;box-shadow:0 10px 20px rgba(245,158,11,.22)}
.hero{background:radial-gradient(circle at 75% 25%,rgba(31,111,139,.38),transparent 32%),linear-gradient(135deg,var(--bg),var(--bg2));color:#fff;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:auto -10% -36% -10%;height:280px;background:rgba(255,255,255,.05);transform:rotate(-3deg)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;padding:88px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#e9f7ff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700;margin-bottom:18px}
h1{font-size:clamp(38px,5vw,64px);line-height:1.03;margin:0 0 20px;letter-spacing:-1.5px}
.hero p{font-size:18px;color:#d5e4ef;max-width:680px;margin:0 0 28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero-bullets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;color:#eaf4fb;font-size:14px}
.hero-bullets span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:11px 12px}
.product-visual{background:linear-gradient(180deg,#fff,#edf2f7);border-radius:28px;padding:24px;box-shadow:var(--shadow);position:relative}
.product-visual .photo{height:420px;border-radius:22px;background:linear-gradient(135deg,#d9dee6,#fff);display:grid;place-items:center;overflow:hidden;border:1px solid rgba(255,255,255,.8)}
.product-visual .photo img{width:100%;height:100%;object-fit:cover}
.spec-card{position:absolute;left:-22px;bottom:28px;background:#fff;color:var(--text);padding:16px 18px;border-radius:18px;box-shadow:var(--shadow);width:245px;border:1px solid var(--line)}
.spec-card b{display:block;margin-bottom:6px;color:var(--brand)}
.spec-card span{display:block;color:var(--muted);font-size:13px}
section{padding:82px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}
.section-head h2{font-size:clamp(30px,3.5vw,44px);line-height:1.12;margin:0;letter-spacing:-.8px;color:#101828}
.section-head p{max-width:540px;margin:0;color:var(--muted)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 10px 26px rgba(16,24,40,.05)}
.card h3{margin:0 0 10px;font-size:19px;color:#101828}
.card p{margin:0;color:var(--muted);font-size:14px}
.icon{width:44px;height:44px;border-radius:14px;background:#eaf3f8;color:var(--brand);display:grid;place-items:center;font-weight:900;margin-bottom:16px}
.soft{background:var(--soft)}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{overflow:hidden;padding:0}
.product-img{height:200px;background:linear-gradient(135deg,#f1f4f8,#fff);display:grid;place-items:center;border-bottom:1px solid var(--line)}
.product-img .cylinder{width:110px;height:42px;border-radius:999px;background:linear-gradient(90deg,#69707a,#eef1f3,#8b9096);box-shadow:inset 0 0 10px rgba(0,0,0,.16);position:relative;transform:rotate(-18deg)}
.product-img .cylinder:after{content:"";position:absolute;right:-48px;top:15px;width:58px;height:12px;border-radius:999px;background:linear-gradient(90deg,#8c939b,#f5f5f5,#8c939b)}
.product-body{padding:22px}
.tag{display:inline-block;background:#fff7e6;color:#92400e;border:1px solid #fed7aa;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;margin-bottom:12px}
.product-body h3{margin:0 0 8px;font-size:20px}
.product-body ul{margin:16px 0 0;padding:0;list-style:none;color:#475467;font-size:14px}
.product-body li{padding:6px 0;border-top:1px dashed #e4e7ec}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.dark-panel{background:linear-gradient(135deg,var(--brand),#09233b);color:#fff;border-radius:28px;padding:34px;box-shadow:var(--shadow)}
.dark-panel h2{font-size:36px;line-height:1.15;margin:0 0 16px}
.dark-panel p{color:#d8e6f0;margin:0 0 22px}
.process{display:grid;gap:14px}
.step{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}
.num{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;flex:0 0 auto}
.step b{display:block;margin-bottom:4px;color:#101828}
.step span{color:var(--muted);font-size:14px}
.spec-table-wrap{overflow:auto;border-radius:18px;box-shadow:0 10px 26px rgba(16,24,40,.05)}
.spec-table{width:100%;min-width:760px;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.spec-table th,.spec-table td{text-align:left;padding:15px 16px;border-bottom:1px solid var(--line);font-size:14px}
.spec-table th{background:#eef5f8;color:#17324d;font-weight:800}
.spec-table tr:last-child td{border-bottom:0}
.applications{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.app{min-height:168px;border-radius:20px;padding:20px;background:linear-gradient(135deg,#fff,#f3f6fa);border:1px solid var(--line)}
.app b{display:block;font-size:18px;margin-bottom:8px;color:#101828}
.app span{font-size:14px;color:var(--muted)}
.contact{background:linear-gradient(135deg,#07101f,#0f3b63);color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:38px;align-items:start}
.contact h2{font-size:42px;line-height:1.12;margin:0 0 16px}
.contact p{color:#d8e6f0;margin:0 0 24px}
form{background:#fff;border-radius:24px;padding:26px;box-shadow:var(--shadow);color:var(--text)}
label{display:block;font-weight:700;font-size:13px;margin-bottom:7px;color:#344054}
input,textarea,select{width:100%;border:1px solid #cfd7e3;border-radius:12px;padding:12px 13px;font:inherit;margin-bottom:14px;outline:none;background:#fff}
input:focus,textarea:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,111,139,.12)}
textarea{min-height:110px;resize:vertical}
.contact-cards{display:grid;gap:14px;margin-top:24px}
.contact-card{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);border-radius:18px;padding:18px}
.contact-card b{display:block;margin-bottom:4px}
.contact-card span{color:#d8e6f0;font-size:14px}
footer{background:#07101f;color:#b9c7d6;padding:32px 0;font-size:14px}
footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.mobile-cta{display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:60;gap:10px}
.mobile-cta .btn{flex:1;padding:12px 10px;font-size:13px}

@media (max-width:1180px){
  nav{gap:12px}
  .navlinks{gap:12px;font-size:13px}
  .lang-switch:not(.mobile){display:none}
  .nav-cta{padding:10px 14px;font-size:13px}
}

@media (max-width:1080px){
  .navlinks{gap:12px}
  .lang-switch:not(.mobile){display:none}
}
@media (max-width:950px){
  .navlinks{display:none;position:absolute;left:4%;right:4%;top:64px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow)}
  .navlinks.open{display:grid;gap:10px}
  .navlinks.open .lang-switch.mobile{display:flex;margin:8px 0 0;justify-content:flex-start;width:max-content}
  .menu-btn{display:block}
  .nav-cta{display:none}
  .hero-grid,.two-col,.contact-grid{grid-template-columns:1fr}.hero-grid{padding:58px 0}.product-visual .photo{height:320px}.spec-card{position:static;margin-top:14px;width:auto}.grid-4,.applications{grid-template-columns:repeat(2,1fr)}.products{grid-template-columns:1fr 1fr}.section-head{display:block}.section-head p{margin-top:12px}.mobile-cta{display:flex}body{padding-bottom:70px}
}
@media (max-width:620px){
  .topbar{display:none}nav{height:64px}.hero-bullets,.grid-4,.products,.applications{grid-template-columns:1fr}section{padding:58px 0}.contact h2{font-size:34px}.product-visual{padding:14px}.product-visual .photo{height:270px}
}