Describe the issue linked to the documentation

I recently browsed the dev website curious to see if I could spot differences after #29134 was merged.

Maybe it's just me, but I found that the install boxes where you select pip vs conda and potentially your OS is a bit confusing, the nesting of the two boxes looks visually complicated.
https://scikit-learn.org/dev/install.html#installing-the-latest-release

Compare this to the stable website which I find a bit clearer maybe:
https://scikit-learn.org/stable/install.html#installing-the-latest-release

Maybe @Charlie-XIAO you have some suggestions on how to improve it with some CSS magic?

Suggest a potential alternative/fix

The PyTorch similar info for example seems a lot clearer to me than ours (both stable and dev website) https://pytorch.org/get-started/locally/#start-locally:

The scikit-learn 1.4 seemed clearer as well:
https://scikit-learn.org/1.4/install.html#installing-the-latest-release