v3.26.1
Taxation - Deferred tax assets and liabilities (Details) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:      
Deferred revenue ¥ 282,829 ¥ 265,876  
Net operating tax loss carry forwards 3,052,326 3,490,177  
Accruals and others [1] 1,105,317 940,900  
Total deferred tax assets 4,440,472 4,696,953  
Less: valuation allowance (4,274,340) (4,561,822) ¥ (4,444,111)
Net deferred tax assets 166,132 135,131  
Deferred tax liabilities      
Acquired intangible assets (50,424) (66,969)  
Total deferred tax liabilities (50,424) (66,969)  
Movement of the aggregate valuation allowances for deferred tax assets      
Balance at January 1 (4,561,822) (4,444,111) (3,657,467)
Re-measurement due to applicable preferential tax rate for HNTE     (18,437)
(Provision) /Reversal 194,334 (129,769) (822,414)
Expiration of loss carry forward and impact of disposal/close of subsidiaries 93,148 12,058 54,207
Balance at December 31 ¥ (4,274,340) ¥ (4,561,822) ¥ (4,444,111)
[1] Accruals and others primary represent accrued expenses which are not deductible until paid under PRC laws, as well as non-deductible advertising expenses.