v3.26.1
Significant Accounting Policies - Movements of the allowance for expected credit losses (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Allowance for Doubtful Accounts        
Balance at January 1 ¥ 283,993   ¥ 219,201 ¥ 305,535
(Reversal)/Provisions 27,754 $ 3,969 109,801 (16,000)
Write-offs (94,834)   (45,009) (70,334)
Balance at December 31 ¥ 216,913   ¥ 283,993 ¥ 219,201