v3.26.1
Goodwill - Summary of changes in the carrying amount of goodwill (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Goodwill        
Balance at the beginning of the year ¥ 126,344   ¥ 191,077  
Disposal of a subsidiary     (64,733)  
Impairment of goodwill ¥ (126,344) $ (18,067) 0 ¥ 0
Balance at the end of the year     ¥ 126,344 ¥ 191,077