:root{--g:#14532d;--g2:#166534;--g3:#dcfce7;--o:#ea580c;--o2:#c2410c;--t:#1f2937;--m:#6b7280;--b:#e5e7eb;--bg:#f8faf8;--r:12px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--t);background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:var(--g2)}
h1,h2,h3{line-height:1.25;color:var(--g)}
h1{font-size:clamp(1.6rem,4vw,2.3rem);margin:.6em 0 .4em}
h2{font-size:clamp(1.25rem,3vw,1.6rem);margin:1.4em 0 .6em}
h3,.h3{font-size:1.05rem;margin:.2em 0}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}
.narrow{max-width:820px}
.center{text-align:center}
.muted{color:var(--m);font-size:.92rem}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.topbar{background:var(--g);color:#fff;font-size:.85rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.topbar a{color:#fff;text-decoration:none}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--b);z-index:20}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand b{display:block;color:var(--g);font-size:1.1rem;line-height:1.1}
.brand small{color:var(--m)}
.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--t);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--g2)}
.nav .cta{background:var(--o);color:#fff;padding:8px 16px;border-radius:999px}
.nav .cta:hover{background:var(--o2);color:#fff}
.has-sub{position:relative}
.sub{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--b);border-radius:var(--r);padding:8px;min-width:240px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.sub a{display:block;padding:8px 10px;font-weight:500}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.burger{display:none;background:none;border:1px solid var(--b);border-radius:8px;font-size:1.3rem;padding:4px 10px}
.hero{background:linear-gradient(135deg,var(--g),#064e3b);color:#fff;padding:48px 0}
.hero h1{color:#fff;margin-top:0}
.hero p{max-width:720px}
.brands{opacity:.85;font-size:.9rem}
.btn{display:inline-block;background:var(--o);color:#fff;border:0;border-radius:999px;padding:11px 22px;font-weight:700;text-decoration:none;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--o2)}
.btn-ghost{background:transparent;color:inherit;border:2px solid currentColor}
.hero .btn-ghost{color:#fff}.hero .btn-ghost:hover{background:rgba(255,255,255,.12)}
.pinfo .btn-ghost{color:var(--g2)}.pinfo .btn-ghost:hover{background:var(--g3)}
.btn-sm{padding:7px 14px;font-size:.9rem}
.usp{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-26px;position:relative}
.usp div{background:#fff;border:1px solid var(--b);border-radius:var(--r);padding:14px;box-shadow:0 4px 14px rgba(0,0,0,.05)}
.usp b{display:block;color:var(--g)}.usp span{font-size:.9rem;color:var(--m)}
.block{margin-top:32px}
.block-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.block-head h2 a{text-decoration:none}
.grid.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.card{border:1px solid var(--b);border-radius:var(--r);overflow:hidden;background:#fff;display:flex;flex-direction:column}
.card-img{background:var(--bg);aspect-ratio:4/3;display:block}
.card-img img{width:100%;height:100%;object-fit:contain}
.card-body{padding:12px 14px 16px}
.card h3 a{text-decoration:none;color:var(--g)}
.price{color:var(--o2);font-weight:700;margin:.4em 0}
.crumbs{font-size:.88rem;color:var(--m);padding:12px 0 0}
.crumbs a{color:var(--m)}
.lead-text{font-size:1.08rem;color:#374151}
.pgrid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:28px;align-items:start}
.pimg{background:var(--bg);border:1px solid var(--b);border-radius:var(--r);padding:12px}
.pimg img{width:100%;height:auto;object-fit:contain}
.specs{width:100%;border-collapse:collapse;margin-top:14px}
.specs th,.specs td{border:1px solid var(--b);padding:8px 10px;text-align:left;vertical-align:top}
.specs th{background:var(--bg);width:36%}
.prose{margin:24px 0}
.prose h2{margin-top:1.6em}
.prose img{border-radius:8px;margin:12px 0}
.prose table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}
.prose td,.prose th{border:1px solid var(--b);padding:8px}
.faq details{border:1px solid var(--b);border-radius:10px;padding:10px 14px;margin:8px 0;background:#fff}
.faq summary{font-weight:700;cursor:pointer;color:var(--g)}
.lead{background:var(--g3);border-radius:var(--r);padding:20px;margin:32px 0;max-width:620px}
.lead h2{margin-top:0}
.lead label{display:block;font-weight:600;margin:10px 0}
.lead input,.lead textarea{display:block;width:100%;font:inherit;padding:10px;border:1px solid #9ca3af;border-radius:8px;margin-top:4px;background:#fff}
.hp{position:absolute;left:-5000px}
.ok{background:#dcfce7;border:1px solid #86efac;padding:12px;border-radius:8px}
.bad{background:#fee2e2;border:1px solid #fca5a5;padding:12px;border-radius:8px}
.pager{display:flex;gap:6px;margin:24px 0}
.pager a{padding:6px 12px;border:1px solid var(--b);border-radius:8px;text-decoration:none}
.pager .on{background:var(--g);color:#fff}
.site-footer{background:#0f2a1c;color:#d1fae5;margin-top:48px;padding-top:32px}
.site-footer a{color:#fff}
.site-footer h3{color:#fff}
.site-footer .grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:6px 0}
.legal{border-top:1px solid rgba(255,255,255,.15);margin-top:24px;padding:14px 16px;font-size:.85rem;opacity:.85}
.float{position:fixed;right:12px;bottom:12px;display:flex;flex-direction:column;gap:8px;z-index:30}
.float a{display:flex;align-items:center;justify-content:center;gap:6px;padding:11px 16px;border-radius:999px;color:#fff;text-decoration:none;font-weight:700;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.f-call{background:var(--o)}.f-zalo{background:#0068ff}
@media(max-width:820px){
  .burger{display:block}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--b);flex-direction:column;align-items:stretch;gap:0;padding:8px 16px 16px}
  .nav.open{display:flex}
  .nav a{padding:10px 0}
  .has-sub .sub{display:block;position:static;border:0;box-shadow:none;padding:0 0 0 12px}
  .usp{grid-template-columns:1fr 1fr}
  .pgrid{grid-template-columns:1fr}
  .site-footer .grid{grid-template-columns:1fr}
  .float{flex-direction:row;left:12px;right:12px;justify-content:space-between}
  .float a{flex:1}
  body{padding-bottom:64px}
  .topbar .wrap>span:first-child{display:none}
}