:root{
  --navy:#0b2740;
  --navy2:#071b2d;
  --red:#e91d25;
  --ink:#132238;
  --muted:#5e6b78;
  --light:#f5f7fa;
  --white:#fff;
  --line:#e4e8ed;
  --shadow:0 14px 40px rgba(7,27,45,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}
.topbar{background:var(--navy2);color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;gap:18px;padding:8px 0}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{width:210px;height:auto}
.navlinks{display:flex;align-items:center;gap:26px;font-weight:700;font-size:14px}
.navlinks a{padding:26px 0;position:relative}
.navlinks a:hover,.navlinks a.active{color:var(--red)}
.menu{display:none;border:0;background:none;font-size:28px;color:var(--navy)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 20px;border-radius:999px;background:var(--red);color:#fff;font-weight:800;border:2px solid var(--red);transition:.2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(233,29,37,.22)}
.btn.alt{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn.dark{background:var(--navy);border-color:var(--navy)}
.hero{background:linear-gradient(120deg,#f6f8fb 0%,#fff 60%);padding:70px 0 80px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--red);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:13px}
h1{font-size:clamp(42px,6vw,72px);line-height:1.02;margin:15px 0 20px;color:var(--navy)}
h2{font-size:clamp(30px,4vw,46px);line-height:1.1;margin:0 0 14px;color:var(--navy)}
h3{color:var(--navy);margin:0 0 8px}
.lead{font-size:18px;color:var(--muted);max-width:650px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-card{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);background:#fff}
.hero-card img{width:100%;height:auto}
.section{padding:80px 0}
.section.light{background:var(--light)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
.section-head p{max-width:620px;color:var(--muted);margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 25px rgba(7,27,45,.05)}
.card-body{padding:22px}
.product-img{aspect-ratio:4/3;object-fit:cover;width:100%;background:#eef1f4}
.tag{display:inline-block;background:#eef3f7;color:var(--navy);font-size:12px;font-weight:800;padding:5px 9px;border-radius:999px;margin-bottom:10px}
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.feature{padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.feature strong{display:block;color:var(--navy)}
.icon{font-size:22px;margin-bottom:6px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split img{border-radius:24px;box-shadow:var(--shadow)}
.list{padding:0;margin:22px 0;list-style:none}
.list li{padding:9px 0;border-bottom:1px solid var(--line)}
.list li::before{content:"✓";color:var(--red);font-weight:900;margin-right:10px}
.banner{background:var(--navy);color:#fff;border-radius:28px;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.banner h2{color:#fff;margin:0}
.banner p{color:#d7e0e8;margin:8px 0 0}
.page-hero{background:linear-gradient(135deg,var(--navy2),var(--navy));color:#fff;padding:65px 0}
.page-hero h1{color:#fff;margin:0 0 10px}
.page-hero p{margin:0;color:#d9e4ec;max-width:720px}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}
.contact-card{padding:28px;border:1px solid var(--line);border-radius:20px}
.contact-item{padding:14px 0;border-bottom:1px solid var(--line)}
.contact-item strong{display:block;color:var(--navy)}
form{display:grid;gap:14px}
input,textarea,select{width:100%;padding:14px 15px;border:1px solid #cfd7df;border-radius:12px;font:inherit}
textarea{min-height:150px;resize:vertical}
footer{background:var(--navy2);color:#dce6ee;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:40px}
footer h3{color:#fff}
footer .logo{filter:brightness(0) invert(1);opacity:.96;margin-bottom:18px}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:18px;font-size:13px;display:flex;justify-content:space-between;gap:20px}
.small{font-size:13px;color:var(--muted)}
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start}
.product-detail .main-img{border-radius:22px;box-shadow:var(--shadow)}
.specs{width:100%;border-collapse:collapse;margin-top:20px}
.specs td{padding:11px 8px;border-bottom:1px solid var(--line)}
.specs td:first-child{font-weight:800;color:var(--navy);width:42%}
.note{padding:15px 18px;border-left:4px solid var(--red);background:#fdf4f4;border-radius:8px;margin:20px 0}
@media(max-width:900px){
  .navlinks{display:none;position:absolute;left:0;right:0;top:78px;background:#fff;border-bottom:1px solid var(--line);padding:12px 4%;flex-direction:column;align-items:flex-start;gap:0}
  .navlinks.open{display:flex}
  .navlinks a{padding:12px 0}
  .menu{display:block}
  .hero-grid,.split,.product-detail,.contact-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero{padding:45px 0 55px}
}
@media(max-width:620px){
  .topbar .container{flex-direction:column;gap:2px}
  .logo{width:175px}
  .grid-3,.grid-2,.features,.footer-grid{grid-template-columns:1fr}
  .section{padding:55px 0}
  .banner{padding:28px;flex-direction:column;align-items:flex-start}
  h1{font-size:44px}
  .footer-bottom{flex-direction:column}
}