v3.26.1
Intangible Asset, Net (Details)
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Intangible Asset, Net [Line Items]        
Amortization expense ¥ 985,844 ¥ 985,844 ¥ 985,844  
Net book value 45,759,600 ¥ 46,745,444   $ 6,510,300
Loan Arrangement [Member]        
Intangible Asset, Net [Line Items]        
Net book value ¥ 45,759,600