body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF5722; text-shadow: 2px 2px 4px rgba(0,0,0,0.1); }
        nav { background: #1E88E5; padding: 15px; margin-bottom: 30px; }
        nav ul { list-style: none; padding: 0; display: flex; justify-content: space-around; }
        nav a { color: white; text-decoration: none; font-weight: bold; }
        .mobile-toggle { display: none; background: #FF5722; color: white; border: none; padding: 10px; cursor: pointer; }
        h1 { color: #1E88E5; border-bottom: 3px solid #FF5722; padding-bottom: 10px; }
        h2 { color: #FF5722; margin-top: 30px; }
        h3 { color: #1E88E5; }
        .download-btn { background: #4CAF50; color: white; padding: 15px 30px; text-decoration: none; border-radius: 5px; display: inline-block; margin: 20px 0; }
        .login-btn { background: #2196F3; color: white; padding: 15px 30px; text-decoration: none; border-radius: 5px; display: inline-block; margin: 20px 10px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 30px 0; }
        .tag { background: #E0E0E0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 50px; padding: 20px; background: #333; color: white; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; display: none; }
            nav ul.active { display: flex; }
            .mobile-toggle { display: block; }
            .logo { font-size: 1.8em; }
        }