v3.26.1
Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2025
Inventories, Net [Abstract]  
Schedule of Inventories

Inventories consisted of the following:

 

   As of December 31, 
   2024   2025 
   RMB   RMB   US$ 
Finished goods   17,737    13,542    1,937 
Work in process   33,054    17,689    2,529 
Raw materials   7,429    7,935    1,135 
    58,220    39,166    5,601