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Intangible assets, net (Tables)
 12 Months Ended
Dec. 31, 2023
Intangible Assets Net  
Schedule of intangible assets, net
                       
    December 31,
2022		     December 31,
2023		     December 31,
2023		  
    RMB     RMB     USD  
Customer relationships     13,300,000       1,300,000       183,546  
Software     14,745,632       10,241,786       1,446,028  
Non-compete agreements     2,300,000       400,000       56,476  
Subtotal     30,345,632       11,941,786       1,686,050  
Less: accumulated amortization     (14,969,108 )     (8,087,239 )     (1,141,830 )
Less: intangible assets impairment loss     -       (3,854,547 )     (544,220 )
Intangible assets, net     15,376,524       -       -