v3.26.1
Intangible Assets, Net (Details)
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Intangible Assets, Net [Abstract]        
Amortization expense of intangible assets ¥ 1,942,732 $ 277,807 ¥ 4,766,969 ¥ 6,686,070
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] impairment losses impairment losses    
Impairment losses ¥ 17,331,000 $ 2,478,300 ¥ 39,072,000 ¥ 16,027,000