v3.25.2
Short-Term and Long-Term Debts (Details)
6 Months Ended
Sep. 30, 2023
Aug. 11, 2022
CNY (¥)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2024
CNY (¥)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Apr. 30, 2024
CNY (¥)
Jun. 30, 2023
CNY (¥)
Short-Term and Long-Term Debts [Line Items]                
Company borrowed     ¥ 33,000,000   $ 4,609,840 ¥ 18,000,000    
Hangzhou United Rural Commercial Bank Co., Ltd [Member]                
Short-Term and Long-Term Debts [Line Items]                
Weighted average interest rate 3.40%              
Weighted average years to maturity 5 months 1 day              
Zhejiang Shaoxing Ruifeng Rural Commercial Bank [Member]                
Short-Term and Long-Term Debts [Line Items]                
Credit facility amount   ¥ 100,000,000         ¥ 198,000,000 ¥ 148,000,000
Due date   Jul. 25, 2030            
Credit facility bear interest rate     5.40%          
Line of Credit [Member]                
Short-Term and Long-Term Debts [Line Items]                
Company borrowed     ¥ 15,000,000        
Repaid credit facility            
Zhejiang Shaoxing Ruifeng Rural Commercial Bank [Member]                
Short-Term and Long-Term Debts [Line Items]                
Amount borrowed     6,216,727 185,306,916        
Repaid credit facility     ¥ 2,650,000 ¥ 145,737,636        
Zhejiang Shaoxing Ruifeng Rural Commercial Bank [Member] | Line of Credit [Member]                
Short-Term and Long-Term Debts [Line Items]                
Credit facility description     dates for parts of the loan ranging from December 20, 2025 to July 25, 2030