body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f0f2f5;
            min-height: 100vh;
        }

        .container {
            max-width: 800px;
            margin: 0.5rem auto 2rem;
            padding: 2.5rem;
            background: rgba(255, 255, 255, 0.98);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        }

        h1 {
            color: #2d3748;
            font-size: 1.8rem;
            margin-bottom: 2rem;
        }

        h2 {
            color: #2d3748;
            font-size: 1.2rem;
            margin: 1.75rem 0 0.75rem;
        }

        p, li {
            color: #4a5568;
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0.5rem;
        }

        ul {
            margin-left: 1.5rem;
            margin-bottom: 0.75rem;
        }

        a { color: #667eea; }

        .last-updated {
            color: #a0aec0;
            font-size: 0.85rem;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #f0f0f5;
        }

        @media (max-width: 768px) {
            .container { margin: 1rem; padding: 1.5rem; }
            h1 { font-size: 1.4rem; }
        }