v3.25.1
Restricted cash (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Restricted cash.      
Restricted cash ¥ 17,031 $ 2,333 ¥ 18,137
Additional amount subject to potential restriction 61,000    
Additional cash amount in the particular bank account, maximum ¥ 61,000