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Going Concern (Details)
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2023
USD ($)
Going Concern [Line Items]          
Net loss ¥ (80,275,344) $ (11,334,004) ¥ 1,377,897 ¥ 10,223,668  
Operating flows (44,222,478) (6,243,734) (15,231,895) ¥ 4,239,582  
Working capital deficit 27,022,427       $ 3,815,273
Accumulated deficit ¥ (77,454,208)   ¥ (9,025,668)   $ (10,935,689)
Shareholder loan   $ 2,000,000