:root{
  --red:#dc2626;--red-d:#b91c1c;--slate-900:#0f172a;--slate-800:#1e293b;
  --slate-700:#334155;--slate-600:#475569;--slate-500:#64748b;--slate-200:#e2e8f0;
  --slate-100:#f1f5f9;--slate-50:#f8fafc;--blue:#2563eb;--blue-l:#60a5fa;--white:#fff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--slate-700);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
h1,h2,h3{color:var(--slate-900);line-height:1.15;font-weight:700}
/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--slate-200)}
.hdr-in{display:flex;align-items:center;gap:18px;height:76px}
.logo{display:flex;align-items:center;height:44px}
.logo img{height:44px;width:auto}
.nav{display:flex;gap:22px;margin-left:12px;flex-wrap:wrap}
.nav a{font-weight:600;color:var(--slate-700);font-size:15px}
.nav a:hover,.nav a.active{color:var(--red)}
.hdr-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.langsw{position:relative}
.langsw>button{display:flex;align-items:center;gap:6px;background:none;border:1px solid var(--slate-200);border-radius:8px;padding:6px 10px;cursor:pointer;font:inherit;font-weight:600}
.langsw ul{position:absolute;right:0;top:110%;background:#fff;border:1px solid var(--slate-200);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.1);list-style:none;min-width:150px;display:none;overflow:hidden}
.langsw:hover ul{display:block}
.langsw li a{display:block;padding:9px 14px;font-weight:600}
.langsw li a:hover{background:var(--slate-50);color:var(--red)}
.call{color:var(--blue);font-weight:700;white-space:nowrap}
.btn{display:inline-block;background:var(--red);color:#fff;font-weight:700;padding:11px 20px;border-radius:10px;transition:.2s;cursor:pointer;border:none;font:inherit;font-weight:700}
.btn:hover{background:var(--red-d)}
.btn-blue{background:var(--blue)}.btn-blue:hover{background:#1d4ed8}
.btn-ghost{background:transparent;border:1px solid var(--slate-200);color:var(--slate-800)}
.btn-lg{padding:14px 26px;font-size:17px}
.burger{display:none;background:none;border:none;cursor:pointer;font-size:26px;margin-left:auto}
/* hero */
.hero{position:relative;min-height:560px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero video,.hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to right,rgba(15,23,42,.92),rgba(15,23,42,.6));z-index:1}
.hero .container{position:relative;z-index:2}
.hero h1{color:#fff;font-size:clamp(34px,6vw,64px);max-width:900px}
.hero h1 .hl{color:var(--blue-l)}
.hero p{color:#e2e8f0;font-size:clamp(16px,2.2vw,21px);max-width:620px;margin:22px 0 32px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
/* sections */
section{padding:72px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-head h2{font-size:clamp(28px,4vw,40px)}
.sec-head p{color:var(--slate-600);margin-top:12px;font-size:18px}
.eyebrow{color:var(--red);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:13px;margin-bottom:10px;display:block}
/* product grid */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--slate-200);border-radius:16px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 18px 40px rgba(15,23,42,.12);transform:translateY(-4px)}
.card .ph{aspect-ratio:4/3;overflow:hidden;background:var(--slate-100)}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .ph img{transform:scale(1.05)}
.card .bd{padding:22px;flex:1;display:flex;flex-direction:column}
.tag{align-self:flex-start;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--red);background:#fee2e2;padding:4px 10px;border-radius:999px;margin-bottom:12px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--slate-600);font-size:15px;flex:1}
.card .more{margin-top:16px;color:var(--red);font-weight:700;font-size:15px}
/* filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.filters button{border:1px solid var(--slate-200);background:#fff;padding:9px 18px;border-radius:999px;font:inherit;font-weight:600;cursor:pointer;color:var(--slate-700)}
.filters button.active,.filters button:hover{background:var(--slate-900);color:#fff;border-color:var(--slate-900)}
/* sectors */
.sectors{background:var(--slate-900);color:#fff}
.sectors h2{color:#fff}
.sec-tags{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px}
.sec-tags span{background:var(--slate-800);border:1px solid var(--slate-700);padding:12px 22px;border-radius:12px;font-weight:600}
/* service band */
.service{background:var(--slate-50)}
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.service ul{list-style:none;margin-top:20px;display:grid;gap:12px}
.service li{display:flex;gap:12px;align-items:flex-start;font-weight:500}
.service li::before{content:"✓";color:var(--red);font-weight:800}
.badge247{display:inline-flex;flex-direction:column;background:var(--red);color:#fff;border-radius:18px;padding:34px 40px;text-align:center}
.badge247 b{font-size:46px;line-height:1}
/* cta */
.cta{background:linear-gradient(120deg,var(--slate-900),var(--slate-800));color:#fff;text-align:center}
.cta h2{color:#fff;font-size:clamp(26px,4vw,38px);max-width:760px;margin:0 auto}
.cta p{color:#cbd5e1;max-width:620px;margin:16px auto 30px;font-size:18px}
/* product detail */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.pd .ph{border-radius:18px;overflow:hidden;border:1px solid var(--slate-200)}
.pd h1{font-size:clamp(28px,4vw,44px);margin:14px 0}
.pd .feat{list-style:none;margin:26px 0;display:grid;gap:12px}
.pd .feat li{display:flex;gap:12px;background:var(--slate-50);border:1px solid var(--slate-200);padding:14px 16px;border-radius:12px;font-weight:600;color:var(--slate-800)}
.pd .feat li::before{content:"→";color:var(--red);font-weight:800}
.breadcrumb{font-size:14px;color:var(--slate-500);margin-bottom:8px}
.breadcrumb a:hover{color:var(--red)}
/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.stat{background:var(--red);color:#fff;border-radius:18px;padding:30px;text-align:center}
.stat b{font-size:52px;display:block;line-height:1}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.value{background:#fff;border:1px solid var(--slate-200);border-radius:14px;padding:26px}
.value h3{font-size:19px;margin-bottom:8px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.step{background:#fff;border:1px solid var(--slate-200);border-radius:14px;padding:24px;position:relative}
.step .n{width:40px;height:40px;border-radius:10px;background:var(--red);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start}
.info-card{display:flex;gap:16px;background:#fff;border:1px solid var(--slate-200);border-radius:14px;padding:20px;margin-bottom:16px}
.info-card .ic{width:46px;height:46px;border-radius:12px;background:#fee2e2;color:var(--red);display:flex;align-items:center;justify-content:center;font-size:22px;flex:none}
form.cform{background:var(--slate-50);border:1px solid var(--slate-200);border-radius:18px;padding:30px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px;color:var(--slate-700)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--slate-200);border-radius:10px;padding:12px 14px;font:inherit;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue)}
.field.full{margin-bottom:18px}
.form-success{display:none;text-align:center;padding:30px}
.form-success .chk{width:64px;height:64px;border-radius:50%;background:#dcfce7;color:#16a34a;font-size:34px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
/* footer */
footer{background:var(--slate-900);color:#cbd5e1;padding:60px 0 28px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px}
footer h4{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
footer a{color:#cbd5e1}
footer a:hover{color:#fff}
.foot-links{list-style:none;display:grid;gap:10px}
.foot-bottom{border-top:1px solid var(--slate-700);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:14px}
.socials{display:flex;gap:14px}
.socials a{width:40px;height:40px;border-radius:10px;background:var(--slate-800);display:flex;align-items:center;justify-content:center}
.socials a:hover{background:var(--red)}
.socials svg{width:20px;height:20px;fill:#fff}
/* responsive */
@media(max-width:900px){
  .grid-3{grid-template-columns:1fr 1fr}
  .service-grid,.pd,.about-grid,.contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .values{grid-template-columns:1fr}
  .nav,.hdr-right .call{display:none}
  .nav.open{display:flex;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 20px;border-bottom:1px solid var(--slate-200)}
  .burger{display:block}
}
@media(max-width:560px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}