v3.26.1
Intangible assets, net - Schedule of intangible assets, net (Parenthetical) (Details)
12 Months Ended
Dec. 31, 2024
CNY (¥)
Intangible assets, net  
Impairment loss ¥ 61,679,245
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net
Agency contract rights  
Intangible assets, net  
Agency contract right acquired ¥ 54,716,981
Agency contract right acquired, weighted average amortization period 2 years 4 months 24 days