body{font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;line-height:1.6;margin:0;padding:0;background:#fff;color:#333}nav{background:#f8f9fa;padding:1rem;border-bottom:1px solid #dee2e6}nav a{margin-right:1rem;text-decoration:none;color:#333;font-weight:500}nav a:hover{color:#007bff}main{max-width:800px;margin:0 auto;padding:2rem 1rem}footer{background:#f8f9fa;padding:1rem;text-align:center;border-top:1px solid #dee2e6;margin-top:2rem;color:#666}footer a{color:#007bff;text-decoration:none}footer a:hover{text-decoration:underline}h1,h2,h3{color:#333}h1{font-size:2.5rem;margin-bottom:1rem}h2{font-size:1.8rem;margin-top:2rem;margin-bottom:1rem}h3{font-size:1.3rem;margin-top:1.5rem;margin-bottom:0.5rem}p{margin-bottom:1rem}ul,ol{margin-bottom:1rem;padding-left:2rem}li{margin-bottom:0.5rem}.notice,.alert{padding:1rem;margin:1rem 0;border-radius:4px}.notice{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}@media (max-width: 768px){main{padding:1rem}h1{font-size:2rem}nav{text-align:center}nav a{display:inline-block;margin:0.5rem}}