body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1000px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #e74c3c; margin-top: 1.5em; }
        h1 { font-size: 2.2em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
        a { color: #e74c3c; text-decoration: none; }
        .btn { display: inline-block; padding: 10px 20px; background: #e74c3c; color: white; border-radius: 5px; margin: 10px 0; }
        .nav { background: #f8f8f8; padding: 10px; position: sticky; top: 0; }
        .nav-toggle { display: none; }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-toggle { display: block; cursor: pointer; }
        }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .footer { margin-top: 40px; padding: 20px 0; border-top: 1px solid #eee; }