v3.25.1
Accounts receivable, net - Allowance for credit loss related to accounts receivable (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Allowance for credit loss      
Beginning of the year ¥ 3,765 ¥ 1,923 ¥ 756
Provision of allowance for credit loss 2,439 1,842 1,167
Reversal of allowance for credit loss (4,148)    
End of the year 2,056 3,765 1,923
Write-off of allowance for credit loss related to accounts receivable ¥ 0 ¥ 0 ¥ 0