:root{--container:980px;--border:#e6e6e6}*{box-sizing:border-box}html,body{height:100%}body{color:#111;background:#fff;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}a{color:inherit}p{line-height:1.6}.container{max-width:var(--container);margin:0 auto;padding:0 24px}.card{border:1px solid var(--border);border-radius:12px;padding:14px}.btn{border:1px solid #111;border-radius:10px;padding:12px 16px;text-decoration:none;display:inline-block}.btnPrimary{color:#fff;background:#111}.btnGhost{color:#111;background:0 0}.input,.select,.textarea{border:1px solid var(--border);width:100%;font:inherit;border-radius:10px;margin-top:6px;padding:10px}.label{gap:6px;font-weight:600;display:grid}.muted{color:#555;font-size:14px}.notice{border:1px solid var(--border);background:#fafafa;border-radius:12px;padding:12px 14px;font-size:14px}article h2{margin-top:18px}article ul,article ol{padding-left:18px}article a{text-decoration:underline}