body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) { 
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            .toggle-btn { background: #007BFF; color: white; border: none; padding: 10px; cursor: pointer; }
        }
        .logo { font-size: 24px; font-weight: bold; color: #0066CC; }
        .game-btn { display: inline-block; background: #FF9900; color: white; padding: 10px 20px; margin: 10px 0; text-decoration: none; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .copyright { margin-top: 30px; font-size: 12px; color: #777; }