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Pay vs Performance Disclosure
12 Months Ended
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Pay vs Performance Disclosure        
Net Income (Loss) ¥ (113,187,048) $ (15,745,793) ¥ (252,823,772) ¥ 31,118,886