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Property and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2025
Property and Equipment, Net [Abstract]  
Schedule of Property and Equipment, Net

Property and equipment, net consists of the following:

 

   As of December 31, 
   2024   2025   2025 
   RMB   RMB   US$ 
At cost:            
Computer and transmission equipment   9,839    9,753    1,394 
Furniture, fixtures and office equipment   2,342    3,075    440 
Total   12,181    12,828    1,834 
Less: accumulated depreciation   (10,200)   (10,584)   (1,513)
Property and equipment, net   1,981    2,244    321