:root{--bg:#f7f7f5;--card:#fff;--ink:#17233a;--mut:#5b6474;--line:#e3e5ea}
@media (prefers-color-scheme:dark){:root{--bg:#0f141c;--card:#171e29;--ink:#e8ecf2;--mut:#9aa4b4;--line:#283142}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;padding:32px 16px;line-height:1.7}
main{max-width:720px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px 28px}
h1{font-size:1.5rem;margin:0 0 6px}h2{font-size:1.05rem;margin:28px 0 6px}p,li{color:var(--mut);font-size:.95rem}a{color:var(--ink)}
.d{color:var(--mut);font-size:.85rem;margin:0 0 20px}