:root{--fg:#0a0a0a;--muted:#666;--bg:#fff;--accent:#0b63ff}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans KR,sans-serif;line-height:1.6}
.container{max-width:940px;margin:0 auto;padding:24px}
header{padding:24px 0 12px;border-bottom:1px solid #eee}
h1{font-size:28px;margin:0 0 6px}
.badge{display:inline-block;background:#111;color:#fff;border-radius:999px;padding:2px 10px;font-size:12px;margin-left:8px}
h2{margin-top:28px}
.card{border:1px solid #eee;border-radius:12px;padding:16px;margin:12px 0}
a{color:var(--accent);text-decoration:none}
ul{margin:8px 0 8px 18px}
.footer{margin-top:40px;padding-top:12px;border-top:1px solid #eee;font-size:14px;color:var(--muted)}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}
.btn{display:inline-block;border:1px solid #ddd;border-radius:10px;padding:10px 14px}
small{color:var(--muted)}
code{background:#f6f6f6;padding:2px 6px;border-radius:6px}
@media (max-width:640px){h1{font-size:22px}}