v3.26.3
Property, Plant and Equipment, 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 (¥)
Property, Plant and Equipment, Net [Line Items]          
Depreciation expenses ¥ 5,424,689 ¥ 5,028,704      
Property, plant and equipment with net book value     $ 26,011,813 ¥ 177,163,859 ¥ 182,630,671
Collateral Pledged [Member]          
Property, Plant and Equipment, Net [Line Items]          
Property, plant and equipment with net book value       ¥ 171,858,548 ¥ 176,739,153