:root{--bg:#fbf8f4;--fg:#1c1917;--muted:#6b625b;--line:#e7dfd6;--accent:#c2410c;--card:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#171412;--fg:#f4eee8;--muted:#a79b91;--line:#2d2723;--accent:#fb923c;--card:#211c19}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
.wrap{max-width:900px;margin:0 auto;padding:0 16px}
header{padding:20px 0;border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center}
.logo{font-weight:700;letter-spacing:-.02em;font-size:20px;color:var(--fg);text-decoration:none}
.logo span{color:var(--accent)}
nav a{color:var(--muted);text-decoration:none;margin-left:16px;font-size:15px}
h1{font-size:clamp(30px,6vw,48px);line-height:1.1;letter-spacing:-.03em;margin:56px 0 16px}
h2{font-size:26px;letter-spacing:-.02em;margin:0 0 16px}
section{padding:40px 0;border-top:1px solid var(--line)}
.lead{font-size:20px;color:var(--muted);max-width:640px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 20px;border-radius:8px;text-decoration:none;font-weight:600;margin-top:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:0 0 6px;font-size:18px}
.price{font-size:30px;font-weight:700;letter-spacing:-.02em}
.card ul{padding-left:18px;margin:10px 0 0;color:var(--muted);font-size:15px}
.note{color:var(--muted);font-size:14px}
ol.steps{padding-left:20px}
ol.steps li{margin-bottom:8px}
details{border-bottom:1px solid var(--line);padding:12px 0}
summary{cursor:pointer;font-weight:600}
.frame{aspect-ratio:9/16;max-width:280px;background:var(--card);border:1px dashed var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--muted);text-align:center;padding:16px;font-size:14px}
video{width:100%;max-width:280px;border-radius:12px;background:#000}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
footer a{color:var(--muted)}
a{color:var(--accent)}