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Taxation (Details) - Schedule of deferred tax assets and deferred tax liability
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Schedule Of Deferred Tax Assets And Deferred Tax Liability Abstract      
Net operating loss carried forward ¥ 1,750,257 $ 251,308 ¥ 1,724,529
Bad debt provision 96,568 13,866 39,337
Less: Valuation allowance (1,825,262) (262,078) (1,625,548)
Deferred tax assets, net of valuation allowance ¥ 21,563 $ 3,096 ¥ 138,318