v3.25.1
Accumulated Other Comprehensive (Loss) Income - Schedule of Accumulated Other Comprehensive Income (Details)
 12 Months Ended
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Foreign currency translation adjustments [Member]        
Schedule of Accumulated Other Comprehensive Income [Line Items]        
Balance ¥ 28,399,484   ¥ 27,727,372  
Net current-period other comprehensive gains (losses) (22,374,019)   672,112  
Balance (in Dollars) 6,025,465   28,399,484 ¥ 27,727,372
Balance 6,025,465 $ 825,485 28,399,484 27,727,372
Unrealized gains(losses) on available-for-sale investments [Member]        
Schedule of Accumulated Other Comprehensive Income [Line Items]        
Balance 1,798   4,732  
Net current-period other comprehensive gains (losses) 6,000   (2,934)  
Balance (in Dollars) 7,798   1,798 4,732
Balance 7,798 1,069 1,798 4,732
Total [Member]        
Schedule of Accumulated Other Comprehensive Income [Line Items]        
Balance 28,401,282   27,732,104 41,880,907
Net current-period other comprehensive gains (losses) (22,368,019)   669,178  
Balance (in Dollars) 6,033,263   28,401,282 27,732,104
Balance ¥ 6,033,263 $ 826,554 ¥ 28,401,282 ¥ 27,732,104