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Property and Equipment, Net (Details)
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Property and Equipment, Net [Line Items]        
Depreciation expense ¥ 881,076 $ 124,398 ¥ 685,714 ¥ 545,048
Operating expenses ¥ 2,400,000 $ 300,000