v3.25.2
Concentration and Risk (Details)
¥ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2025
CNY (¥)
Jun. 30, 2024
Jun. 30, 2025
HKD ($)
Dec. 31, 2024
CNY (¥)
Concentration and Risk [Line Items]        
Cash and cash equivalents and restricted cash (in Yuan Renminbi) ¥ 44,365     ¥ 89,484
Government with the maximum limit (in Yuan Renminbi) 500      
Bank deposits 500   $ 500  
PRC [Member]        
Concentration and Risk [Line Items]        
Cash and cash equivalents and restricted cash (in Yuan Renminbi) ¥ 37,108      
Customer Concentration Risk [Member] | Customers One [Member] | Revenue Benchmark [Member]        
Concentration and Risk [Line Items]        
Total revenue percentage 30.00% 44.00%    
Customer Concentration Risk [Member] | Customers Two [Member] | Revenue Benchmark [Member]        
Concentration and Risk [Line Items]        
Total revenue percentage 18.00% 12.00%    
Customer Concentration Risk [Member] | Customers Three [Member] | Revenue Benchmark [Member]        
Concentration and Risk [Line Items]        
Total revenue percentage 15.00%