I try to integrate a specific CSS framework (material-design) for my Admin module and another one CSS Framework for my User module in the same project application.
If it's possible how can I do.
It's not possible to use conditionally a specific bundle script depending to route.
The easiest way is to create one project by module.
Integrate your external component separately into your project.
Then to host your two projects on the same URL, you have to use a reverse proxy (for example: HAProxy). Or declaring one project by domain or sub domain.