body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #FF4500; margin-top: 30px; }
        h1 { font-size: 2.5em; text-align: center; }
        h2 { font-size: 2em; border-bottom: 2px solid #FF4500; }
        h3 { font-size: 1.5em; }
        p { margin-bottom: 15px; }
        .logo { font-size: 2.5em; font-weight: bold; text-align: center; margin: 20px 0; color: #FF4500; }
        .nav { background-color: #FF4500; color: white; padding: 10px; text-align: center; position: sticky; top: 0; }
        .nav a { color: white; margin: 0 15px; text-decoration: none; }
        .mobile-nav-toggle { display: none; }
        .download-btn, .login-btn { display: inline-block; padding: 10px 20px; background-color: #FF4500; color: white; text-decoration: none; margin: 10px 0; border-radius: 5px; }
        .img-container { text-align: center; margin: 20px 0; }
        img { max-width: 100%; height: auto; }
        .tags { margin: 20px 0; }
        .tag { background-color: #FFD700; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        .copyright { text-align: center; margin-top: 50px; padding: 20px; background-color: #f5f5f5; }
        @media (max-width: 768px) {
            .mobile-nav-toggle { display: block; background-color: #FF4500; color: white; border: none; padding: 10px; margin: 10px auto; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
            h1 { font-size: 2em; }
            h2 { font-size: 1.7em; }
        }