:root{--navy:#0f2a44;--teal:#0e7a6b;--ink:#1a2530;--muted:#5b6b7a;--line:#e6ebef;--bg:#ffffff;--soft:#f4f7f9;--radius:12px}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.65;background:var(--bg)}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1020px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;font-size:22px;letter-spacing:.02em;color:var(--navy)}
.brand span{color:var(--teal)}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
nav a{color:var(--ink);font-weight:600;font-size:15px}
nav a.active{color:var(--teal)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:16px;cursor:pointer}
.hero{background:linear-gradient(180deg,#eef4f6,#fff);padding:72px 0 56px}
.hero h1{font-size:42px;line-height:1.15;margin:0 0 16px;color:var(--navy)}
.hero p.lead{font-size:19px;color:var(--muted);max-width:720px;margin:0 0 24px}
.btn{display:inline-block;background:var(--navy);color:#fff;padding:12px 20px;border-radius:8px;font-weight:700}
.btn:hover{text-decoration:none;opacity:.92}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--navy);margin-left:10px}
section{padding:48px 0}
h2{font-size:28px;color:var(--navy);margin:0 0 14px}
h3{font-size:19px;color:var(--navy);margin:0 0 8px}
p{margin:0 0 14px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.card p{color:var(--muted);margin:0}
.soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.small{font-size:14px;color:var(--muted)}
.notice{border:1px solid #f0c36d;background:#fff8e6;border-radius:10px;padding:14px 16px;font-size:14px}
.notice strong{color:#7a5a00}
footer{border-top:1px solid var(--line);padding:28px 0 36px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
ul.clean{padding-left:20px}
ul.clean li{margin-bottom:8px}
.privacy h2{margin-top:36px}
.privacy h2:first-child{margin-top:0}
@media(max-width:720px){
  .hero{padding:48px 0 36px}
  .hero h1{font-size:32px}
  .hero p.lead{font-size:17px}
  .grid{grid-template-columns:1fr}
  .menu-btn{display:block}
  nav ul{display:none;position:absolute;right:20px;top:64px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;flex-direction:column;gap:12px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
  nav ul.open{display:flex}
  .btn.ghost{margin-left:0;margin-top:10px}
}