:root{--navy:#1B2A49;--gold:#C9A227;--bg:#F7F8FA;--tx:#1f2937}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--tx);background:#fff;line-height:1.6}
a{color:var(--navy)}header{background:var(--navy);padding:14px 20px;border-bottom:3px solid var(--gold)}
nav{max-width:1000px;margin:auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
nav .logo{color:#fff;font-weight:700;font-size:1.15rem;text-decoration:none}nav a.l{color:#dfe5f1;margin-left:16px;text-decoration:none;font-size:.95rem}
.w{max-width:1000px;margin:auto;padding:0 20px}.hero{padding:56px 0 40px}.hero h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.2;color:var(--navy);margin:0 0 14px}
.hero p{font-size:1.1rem;max-width:680px}.btn{display:inline-block;background:var(--navy);color:#fff;padding:13px 26px;border-radius:8px;text-decoration:none;font-weight:600;border-bottom:3px solid var(--gold)}
.btn.s{background:#fff;color:var(--navy);border:1px solid var(--navy);margin-left:8px}
section{padding:36px 0}section.alt{background:var(--bg)}h2{color:var(--navy);margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}.card{border:1px solid #dde2ea;border-radius:10px;padding:20px;background:#fff}
.card h3{margin-top:0;color:var(--navy)}.price{font-size:2rem;color:var(--navy);font-weight:700}ul.ok{padding-left:20px}
.disc{font-size:.85rem;color:#5b6472;border-top:1px solid #e5e7eb;padding:20px 0}footer{background:var(--navy);color:#cfd6e4;padding:26px 20px;font-size:.9rem}
footer a{color:#fff;margin-right:14px}details{border-bottom:1px solid #e5e7eb;padding:10px 0}summary{cursor:pointer;font-weight:600}