:root{--bg:#F2F2F7;--card:#fff;--text:#111418;--muted:#6B7280;--accent:#0F8A6E;--line:#E5E7EB}
@media (prefers-color-scheme:dark){:root{--bg:#000;--card:#1C1C1E;--text:#F2F2F7;--muted:#9CA3AF;--accent:#34C7A0;--line:#2C2C2E}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:32px 16px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:24px}
header img{width:64px;height:64px;border-radius:15px}
header h1{margin:0;font-size:28px}
header p{margin:0;color:var(--muted)}
nav{display:flex;gap:16px;margin-bottom:24px}
nav a{color:var(--accent);font-weight:600;text-decoration:none}
nav a.on{text-decoration:underline}
.card{background:var(--card);border-radius:16px;padding:20px 22px;margin-bottom:16px}
h2{font-size:20px;margin:0 0 8px}
h3{font-size:16px;margin:18px 0 4px}
p{margin:6px 0}
.muted{color:var(--muted)}
a{color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600;margin-top:8px}
footer{color:var(--muted);font-size:13px;text-align:center;margin-top:32px}
ol{margin:6px 0;padding-left:22px}
li{margin:8px 0}