v3.25.1
Summary of Significant Accounting Policies - Principles of presentation, consolidation and going concern (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2024
USD ($)
Summary of Significant Accounting Policies          
Net loss ¥ (5,800,000) $ (793,315) ¥ (8,264,191) ¥ (7,655,146)  
Accumulated deficit (27,289,256)   (20,865,686)   $ (3,738,613)
Cash and cash equivalents 7,800,000   ¥ 3,260,670 ¥ 3,561,544 $ 1,066,243
Net current liabilities ¥ 15,000,000