:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #1e293b; background: #f8fafc; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.7; }
a { color: #4f46e5; }
header { border-bottom: 1px solid #e2e8f0; background: rgba(255,255,255,.92); }
.nav { max-width: 900px; margin: 0 auto; padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { color: #0f172a; font-weight: 800; text-decoration: none; }
.back { font-size: 14px; font-weight: 650; text-decoration: none; }
main { max-width: 900px; margin: 0 auto; padding: 56px 24px 80px; }
h1, h2 { color: #0f172a; line-height: 1.2; }
h1 { margin: 0 0 12px; font-size: clamp(32px, 6vw, 52px); letter-spacing: -.03em; }
h2 { margin: 42px 0 12px; font-size: 21px; }
p, li { font-size: 16px; }
.lead { max-width: 720px; color: #475569; font-size: 18px; }
.meta { display: inline-flex; margin: 16px 0 32px; border: 1px solid #c7d2fe; border-radius: 999px; background: #eef2ff; padding: 6px 12px; color: #4338ca; font-size: 13px; font-weight: 700; }
.notice { margin: 24px 0; border-left: 4px solid #6366f1; border-radius: 10px; background: #eef2ff; padding: 16px 18px; }
footer { border-top: 1px solid #e2e8f0; color: #64748b; font-size: 13px; padding: 28px 24px; text-align: center; }
@media (max-width: 600px) { main { padding-top: 36px; } p, li { font-size: 15px; } }