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Concentration (Details) - Schedule of Total Accounts Receivable
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer A [Member]        
Concentration Risk [Line Items]        
Amount ¥ 7,025,390 $ 991,908 ¥ 4,393,790  
Concentration risk percentage 17.00% 17.00% 13.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer B [Member]        
Concentration Risk [Line Items]        
Amount [1] [1] ¥ 4,376,768  
Concentration risk percentage [1] [1] 13.00%  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer B [Member]        
Concentration Risk [Line Items]        
Amount [1] [1] ¥ 73,423,394 ¥ 71,419,145
Concentration risk percentage [1] [1] 11.30% 13.10%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer C [Member]        
Concentration Risk [Line Items]        
Amount [1] [1] ¥ 117,415,978 [1]
Concentration risk percentage [1] [1] 18.00% [1]
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer D [Member]        
Concentration Risk [Line Items]        
Amount ¥ 61,254,669 $ 8,648,491 [1] [1]
Concentration risk percentage 12.30% 12.30% [1] [1]
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer E [Member]        
Concentration Risk [Line Items]        
Amount ¥ 60,840,708 $ 8,590,044 [1] [1]
Concentration risk percentage 12.20% 12.20% [1] [1]
Cargo Link Logistics HK Company Limited [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 6,248,193 $ 870,270 ¥ 7,185,007  
Concentration risk percentage 13.50% 13.50% 28.10%  
Cargo Link Logistics HK Company Limited [Member] | Total Purchase [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 62,063,334 $ 8,762,666 ¥ 121,455,797 ¥ 185,858,692
Concentration risk percentage 12.10% 12.10% 19.80% 36.40%
Supplier A [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount [1] [1] ¥ 3,261,998  
Concentration risk percentage [1] [1] 12.80%  
Supplier B [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 9,302,019 $ 1,313,344 [1]  
Concentration risk percentage 20.00% 20.00% [1]  
Supplier C [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 6,801,207 $ 960,256 [1]  
Concentration risk percentage 14.60% 14.60% [1]  
Supplier D [Member] | Total Purchase [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount [1] [1] ¥ 122,901,742 [1]
Concentration risk percentage [1] [1] 20.00% [1]
Supplier E [Member] | Total Purchase [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 60,165,266 $ 8,494,679 [1] [1]
Concentration risk percentage 11.70% 11.70% [1] [1]
Supplier F [Member] | Total Purchase [Member] | Supplier Concentration Risk [Member]        
Concentration Risk [Line Items]        
Amount ¥ 56,607,369 $ 7,992,343 [1] [1]
Concentration risk percentage 11.00% 11.00% [1] [1]
[1] Represented the percentage below 10%