v3.25.1
Summary of Significant Accounting Policies - Intangible assets, net, Impairment of long lived assets and intangible assets with indefinite lives and Employee benefits (Details) - CNY (¥)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]      
Impairment of long-lived assets ¥ 0 ¥ 0 ¥ 0
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income Extensible Enumeration not Disclosed Flag true true true
Impairment of indefinite lived intangible assets ¥ 0 ¥ 0 ¥ 0
Employee benefits      
Employee benefit expenses 2,508,000,000 1,682,610,000 1,092,499,000
Shares issued, value, share-based payment arrangement, forfeited ¥ 0 ¥ 0 ¥ 0
Software and Patents | Minimum [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible asset, useful lives 2 years    
Software and Patents | Maximum [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible asset, useful lives 10 years