the poster should be hoisted up to where it says resources, scrap the chip and put resources as a heading inline at the very top of the list (not insde accordion)
Each poster title is now the <summary> trigger itself, with the "Posters" label sitting above the list as a small uppercase heading outside the accordion. The chip is gone, and the download link lives inside the expanded panel. The two items share a bordered list style by removing the top border on the second item.
This is incorrect, there should be two links INSIDE an accordion called posters, scrap the download button part, it should be self named a tag
Now it's a single "Posters" accordion with two self-named anchor tags inside — no download buttons, no chips, no separate accordions per item.
Now just put a resources at the very top of the list and can you generate a bunch of fake data for a blog accordion and a case studies accordion