v3.25.2
Summary of Significant Accounting Policies - Cash, cash equivalents and restricted cash (Details)
¥ in Thousands, $ in Thousands
Jun. 30, 2025
CNY (¥)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Jun. 30, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Summary of Significant Accounting Policies            
Cash and cash equivalents ¥ 7,111,459 $ 992,721 ¥ 19,328,920      
Restricted cash 9,260,268 1,292,684 8,320,728      
Long-term restricted cash 78,073 10,899 97,720      
Total ¥ 16,449,800 $ 2,296,304 ¥ 27,747,368 $ 3,873,383 ¥ 28,441,893 ¥ 38,621,507