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Risks and Uncertainties (Details) - CNY (¥)
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Risks and Uncertainties [Line Items]        
Bank deposits (in Yuan Renminbi) ¥ 500,000   ¥ 500,000  
Customer Concentration Risk [Member] | Customer One [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 22.00% 21.20% 21.50% 21.90%
Customer Concentration Risk [Member] | Customer One [Member] | Accounts Receivable [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     29.00%  
Customer Concentration Risk [Member] | Customer Two [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 16.20% 19.50% 16.60% 20.00%
Customer Concentration Risk [Member] | Customer Two [Member] | Accounts Receivable [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     20.00%  
Customer Concentration Risk [Member] | Customer Three [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 15.70% 16.00% 15.80% 15.20%
Customer Concentration Risk [Member] | Customer Three [Member] | Accounts Receivable [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     14.50%  
Customer Concentration Risk [Member] | Customer Four [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 14.50% 14.50% 14.90% 13.90%
Customer Concentration Risk [Member] | Customer Four [Member] | Accounts Receivable [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     12.20%  
Customer Concentration Risk [Member] | Customer Five [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 12.00% 12.10% 12.20% 11.60%
Customer Concentration Risk [Member] | Top 10 Customers [Member] | Revenue Benchmark [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 99.60% 100.00% 99.40% 99.30%
Supplier Concentration Risk [Member] | Supplier [Member] | Purchases Raw Material [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     10.00%  
Supplier Concentration Risk [Member] | Two Suppliers [Member] | Purchases Raw Material [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage 50.10% 27.10%   40.30%
Supplier Concentration Risk [Member] | Three suppliers [Member] | Purchases Raw Material [Member]        
Risks and Uncertainties [Line Items]        
Concentration risk, percentage     49.60%