:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#111827;background:#f8fafc}body{margin:0}main,header,footer{max-width:960px;margin:auto;padding:28px}header{padding-top:56px}nav a{margin-right:16px}a{color:#0f4c81}h1{font-size:2.5rem;line-height:1.05}h2{margin-top:2rem}.card{background:white;border:1px solid #e5e7eb;border-radius:12px;padding:20px;margin:18px 0}.muted{color:#475569}footer{font-size:.9rem;color:#475569}.notice{border-left:4px solid #64748b;padding-left:16px}