Unable to answer "What surface does this path have here?" for https://osm.org/way/789945136 via StreetComplete 31.3:

供步行和自行车的运动步道

Sports track made for running and cycling, looks like a plastic playground but is harder. Not coloured asphalt.

Attached photo(s):
https://westnordost.de/p/39368.jpg
https://westnordost.de/p/39369.jpg