body { font-family: 'Segoe UI', Arial, 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: #FF4500; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin: 20px 0; }
        nav { background: #FFD700; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu { display: block; }
        }
        h1 { color: #FF4500; border-bottom: 3px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #006400; margin-top: 30px; }
        h3 { color: #8B4513; }
        .download-btn { background: #008000; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 0; }
        .login-btn { background: #1E90FF; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tag { background: #E0E0E0; padding: 3px 8px; border-radius: 3px; margin: 5px; display: inline-block; }
        footer { margin-top: 40px; padding: 20px; background: #333; color: white; }