v3.26.3
Intangible Assets, Net (Details)
6 Months Ended
Jun. 30, 2026
CNY (¥)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Intangible assets, net [Line Items]          
Net book value     $ 6,646,211 ¥ 45,266,678 ¥ 45,759,600
Amortization expense ¥ 492,922 ¥ 492,922      
Loan Arrangement [Member]          
Intangible assets, net [Line Items]          
Net book value       ¥ 45,266,678 ¥ 45,759,600