:root{--bg:#fff;--text:#18181b;--text2:#3f3f46;--muted:#71717a;--line:#e4e4e7;--link:#2563eb}
@media (prefers-color-scheme: dark){:root{--bg:#0a0a0b;--text:#f4f4f5;--text2:#d4d4d8;--muted:#a1a1aa;--line:#26262b;--link:#93c5fd}}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px;line-height:1.65}
.wrap{max-width:760px;margin:0 auto;padding:32px 20px 60px}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:28px}
header a.home{font-weight:700;letter-spacing:.18em;text-decoration:none;color:var(--text)}
header nav a{color:var(--muted);text-decoration:none;font-size:14px;margin-left:16px}
header nav a:hover{color:var(--text)}
h1{font-size:30px;letter-spacing:-.02em;margin-bottom:6px}
.eff{color:var(--muted);font-size:14px;margin-bottom:22px}
.note{border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px;color:var(--text2);margin-bottom:26px}
h2{font-size:19px;margin:30px 0 8px}
h3{font-size:16px;margin:18px 0 6px}
p,li{color:var(--text2)}
p{margin-bottom:10px}
ul{padding-left:22px;margin-bottom:12px}
li{margin:4px 0}
a{color:var(--link)}
strong{color:var(--text)}
footer{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}