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Accounts Receivable, Net (Details) - Schedule of accounts receivable
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Schedule Of Accounts Receivable Abstract      
Accounts receivable ¥ 32,098,662 $ 4,608,830 ¥ 88,228,296
Allowance for doubtful accounts (1,185,328) (170,193) (682,905)
Total accounts receivable, net ¥ 30,913,334 $ 4,438,637 ¥ 87,545,391