v3.26.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
CONSOLIDATED STATEMENTS OF CASH FLOWS            
Cash and cash equivalents ¥ 1,759,126,853 $ 251,551,794 ¥ 1,017,148,142   ¥ 4,440,131,180  
Restricted cash 34,931 4,995 83,387      
Restricted cash included in other non-current assets 22,046,995   20,179,754   68,859,138  
Total cash, cash equivalents and restricted cash shown in the statement of cash flows ¥ 1,781,208,779 $ 254,709,468 ¥ 1,037,411,283 $ 148,347,841 ¥ 4,508,990,318 ¥ 4,047,659,499