:root{--bg:#f3f9fa;--fg:#182a33;--muted:#5c7480;--card:#fff;--line:#dceaed;--primary:#12707d;--accent:#e8a13a;--radius:14px}
*{box-sizing:border-box}body{margin:0;font-family:Manrope,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg)}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.head{display:flex;align-items:center;gap:20px;justify-content:space-between;min-height:72px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700}
.brand b{display:block;font-size:17px}.brand small{color:var(--muted);font-size:12px}
.nav{display:flex;gap:18px;font-weight:600;font-size:15px}.nav a:hover{color:var(--primary)}
.tools{display:flex;gap:10px;flex-wrap:wrap}
.chips{display:flex;gap:4px;background:#eef5f6;border-radius:999px;padding:4px}
.chip{border:0;background:transparent;font:inherit;font-size:12px;font-weight:700;padding:5px 10px;border-radius:999px;cursor:pointer;color:var(--muted)}
.chip.on{background:var(--primary);color:#fff}
.hero{background:linear-gradient(135deg,#12707d,#0f5b78);color:#fff;padding:64px 0}
.hero h1{font-size:40px;margin:0 0 14px;letter-spacing:-.02em}
.hero p{margin:0 0 22px;max-width:640px;opacity:.9;font-size:17px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.badges span{background:rgba(255,255,255,.16);border-radius:999px;padding:7px 14px;font-size:13px}
.btn{display:inline-block;background:var(--accent);color:#221600;font-weight:700;padding:13px 22px;border-radius:999px}
.section{padding:48px 0}
h2{font-size:26px;margin:0 0 6px}.sub{color:var(--muted);margin:0 0 26px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:10px;transition:.15s}
.card:hover{box-shadow:0 12px 28px rgba(18,112,125,.13);transform:translateY(-2px)}
.card img{width:100%;height:140px;object-fit:contain}
.card h3{margin:0;font-size:16px}
.muted{color:var(--muted);font-size:13px;margin:0}
.price{font-weight:700;color:var(--primary)}
.detail{display:grid;grid-template-columns:320px 1fr;gap:32px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}
tr:last-child td{border-bottom:0}
.save{color:#1c7a4f;font-weight:600}
.buy{background:var(--primary);color:#fff;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:700;display:inline-block}
.faq h3{margin:22px 0 6px}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:28px 0;margin-top:20px}
@media(max-width:820px){.detail{grid-template-columns:1fr}.hero h1{font-size:30px}}