body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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; }
            body { padding: 10px; }
        }
        h1 { color: #FF4500; border-bottom: 3px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #006400; margin-top: 30px; }
        h3 { color: #8B4513; }
        .logo { font-size: 28px; font-weight: bold; color: #FF4500; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        nav a { margin: 0 15px; text-decoration: none; color: #006400; font-weight: bold; }
        .download-btn, .login-btn { background: linear-gradient(45deg, #FF4500, #FFD700); color: white; padding: 12px 25px; border-radius: 30px; margin: 15px 0; display: inline-block; text-decoration: none; font-weight: bold; }
        .img-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 10px; }
        .tag { background: #e0e0e0; padding: 5px 10px; border-radius: 20px; margin: 5px; display: inline-block; }
        footer { margin-top: 50px; padding-top: 20px; border-top: 2px solid #FFD700; }