body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f5f5f5; }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #ff5722; text-align: center; margin: 20px 0; }
        .nav { display: flex; justify-content: center; background-color: #333; padding: 10px; }
        .nav a { color: white; margin: 0 15px; text-decoration: none; }
        .mobile-nav-toggle { display: none; }
        .content { background-color: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        h1 { color: #ff5722; margin-bottom: 20px; }
        h2 { color: #e91e63; margin-top: 30px; }
        h3 { color: #00bcd4; margin-top: 25px; }
        .download-btn { background-color: #4caf50; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; display: inline-block; margin: 10px 0; }
        .login-btn { background-color: #2196f3; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; display: inline-block; margin: 10px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .footer { text-align: center; padding: 20px; background-color: #333; color: white; margin-top: 30px; }
        .tags { margin: 20px 0; }
        .tags a { background-color: #eee; color: #333; padding: 5px 10px; margin: 0 5px; text-decoration: none; border-radius: 3px; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; align-items: center; }
            .mobile-nav-toggle { display: block; background-color: #ff5722; color: white; border: none; padding: 10px; margin: 10px auto; border-radius: 5px; }
            .nav.mobile-hidden { display: none; }
        }