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Summary of Significant Accounting Policies (Details) - Schedule of the Disaggregation of the Group’s Revenue
 12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2023
USD ($)
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Freight forwarding services, amount ¥ 342,582,431 $ 48,368,903 ¥ 577,567,025 ¥ 488,036,905  
Freight forwarding services, percentage 68.80% 68.80% 88.60% 89.50%  
Supply chain management, amount ¥ 152,630,138 $ 21,549,711 ¥ 69,022,899 ¥ 53,531,895  
Supply chain management, percentage 30.70% 30.70% 10.60% 9.80%  
Other services, amount ¥ 2,655,631 $ 374,946 ¥ 5,401,669 ¥ 4,024,697  
Other services, percentage 0.50% 0.50% 0.80% 0.70%  
Revenue, total ¥ 497,868,200   ¥ 651,991,593 ¥ 545,593,497 $ 70,293,560
Revenue, percentage 100.00%   100.00% 100.00% 100.00%
Integrated cross-border logistics [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Freight forwarding services, amount ¥ 219,651,690 $ 31,012,423 ¥ 444,335,722 ¥ 390,229,299  
Freight forwarding services, percentage 44.10% 44.10% 68.20% 71.50%  
Fragmented logistics [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Freight forwarding services, amount ¥ 94,720,210 $ 13,373,461 ¥ 133,231,303 ¥ 97,807,606  
Freight forwarding services, percentage 19.00% 19.00% 20.40% 18.00%  
Chartered airline freight services [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Freight forwarding services, amount ¥ 28,210,531 $ 3,983,019  
Freight forwarding services, percentage 5.70% 5.70%  
International trading in relation to supply chain management [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Supply chain management, amount ¥ 152,544,744 $ 21,537,654 ¥ 68,878,594 ¥ 52,974,861  
Supply chain management, percentage 30.70% 30.70% 10.60% 9.70%  
Agent services [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Supply chain management, amount ¥ 85,394 $ 12,057 ¥ 144,305 ¥ 557,034  
Supply chain management, percentage 0.00% 0.00% 0.00% 0.10%  
Customs brokerage [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Other services, amount ¥ 2,544,116 $ 359,201 ¥ 4,098,297 ¥ 2,750,027  
Other services, percentage 0.50% 0.50% 0.60% 0.50%  
Software development [Member]          
Schedule of the Disaggregation of the Group’S Revenue [Line Items]          
Other services, amount ¥ 111,515 $ 15,745 ¥ 1,303,372 ¥ 1,274,670  
Other services, percentage 0.00% 0.00% 0.20% 0.20%