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Summary of Significant Accounting Policies (Details) - Schedule of the disaggregation of the group’s revenue
12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
Disaggregation of Revenue [Line Items]        
Freight forwarding services, amount ¥ 577,567,025 $ 82,928,959 ¥ 488,036,905 ¥ 243,607,373
Freight forwarding services, percentage 88.60% 88.60% 89.46% 83.91%
Supply chain management, amount ¥ 69,022,899 $ 9,910,533 ¥ 53,531,895 ¥ 43,966,498
Supply chain management, percentage 10.60% 10.60% 9.81% 15.14%
Other services, amount ¥ 5,401,669 $ 775,589 ¥ 4,024,697 ¥ 2,759,062
Other services, percentage 0.80% 0.80% 0.73% 0.95%
Revenue, total ¥ 651,991,593 $ 93,615,081 ¥ 545,593,497 ¥ 290,332,933
Revenue, percentage 100.00% 100.00% 100.00% 100.00%
Integrated cross-border logistics [Member]        
Disaggregation of Revenue [Line Items]        
Freight forwarding services, amount ¥ 444,335,722 $ 63,799,174 ¥ 390,229,299 ¥ 210,794,731
Freight forwarding services, percentage 68.20% 68.20% 71.53% 72.61%
Fragmented logistics [Member]        
Disaggregation of Revenue [Line Items]        
Freight forwarding services, amount ¥ 133,231,303 $ 19,129,785 ¥ 97,807,606 ¥ 32,812,642
Freight forwarding services, percentage 20.40% 20.40% 17.93% 11.30%
International trading in relation to supply chain management [Member]        
Disaggregation of Revenue [Line Items]        
Supply chain management, amount ¥ 68,878,594 $ 9,889,813 ¥ 52,974,861 ¥ 41,985,512
Supply chain management, percentage 10.60% 10.60% 9.71% 14.46%
Agent services [Member]        
Disaggregation of Revenue [Line Items]        
Supply chain management, amount ¥ 144,305 $ 20,720 ¥ 557,034 ¥ 1,980,986
Supply chain management, percentage 0.00% 0.00% 0.10% 0.68%
Customs brokerage [Member]        
Disaggregation of Revenue [Line Items]        
Other services, amount ¥ 4,098,297 $ 588,447 ¥ 2,750,027 ¥ 2,566,570
Other services, percentage 0.60% 0.60% 0.50% 0.88%
Software development [Member]        
Disaggregation of Revenue [Line Items]        
Other services, amount ¥ 1,303,372 $ 187,142 ¥ 1,274,670 ¥ 192,492
Other services, percentage 0.20% 0.20% 0.23% 0.07%