v3.26.1
Taxation - Schedule Of Effective Income Tax Rate Reconciliation (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Statutory income tax rate, Amount ¥ 302,022      
Changes in valuation allowance (361,403)      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount [Abstract]        
Share-based compensation 292,164      
Research and development tax credits (273,287)      
Preferential tax treatments (126,221)      
Inter-group restructuring costs 52,623      
Other adjustments (3,202)      
Total ¥ 17,145 $ 2,452 ¥ (36,544) ¥ 78,705
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Statutory income tax rate 25.00% 25.00% 25.00% 25.00%
Foreign Tax Effects, Statutory income tax rate difference [1]     (7.80%) (2.96%)
Permanent differences     5.30% (1.33%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent [Abstract]        
Share-based compensation 24.20% 24.20%    
Research and development tax credits (22.60%) (22.60%)    
Preferential tax treatments (10.40%) (10.40%)    
Inter-group restructuring costs 4.30% 4.30%    
Tax rate difference from statutory rate in other jurisdictions [Abstract]        
Tax effect of preferential tax treatments     (9.49%) (4.73%)
Withholding income tax     (1.29%) (0.47%)
Other adjustments (0.30%) (0.30%)    
Change in valuation allowance (29.90%) (29.90%) (9.11%) (17.17%)
Effective income tax rate 1.40% 1.40% 2.61% (1.66%)
Hong Kong        
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference ¥ 54,702      
Changes in valuation allowance 100,373      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount [Abstract]        
Other adjustments ¥ 13,163      
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference 4.50% 4.50%    
Tax rate difference from statutory rate in other jurisdictions [Abstract]        
Other adjustments 1.10% 1.10%    
Change in valuation allowance 8.30% 8.30%    
Singapore        
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference ¥ (13,837)      
Changes in valuation allowance ¥ (29,798)      
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference (1.20%) (1.20%)    
Tax rate difference from statutory rate in other jurisdictions [Abstract]        
Change in valuation allowance (2.40%) (2.40%)    
Other foreign jurisdictions        
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference ¥ 9,846      
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Foreign Tax Effects, Statutory income tax rate difference 0.80% 0.80%    
[1] It is primarily due to the tax effect of the Company as a tax-exempt entity incorporated in Hong Kong and the Cayman Islands.