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Contract Assets, Net
 12 Months Ended
Dec. 31, 2024
Contract with Customer, Asset, after Allowance for Credit Loss, Current [Abstract]  
Contract Assets, Net
5
CONTRACT ASSETS, NET
 
    
As of December 31,
  
    
2023
     
2024
  
    
RMB
     
RMB
     
US$
  
Contract assets
      81,538        75,711        10,372  
Allowance for credit losses
      (58,790 )       (61,856 )       (8,474 ) 
  
 
 
     
 
 
     
 
 
  
  
 
22,748
 
   
 
13,855
 
   
 
1,898
 
  
 
 
     
 
 
     
 
 
  
The movements in the provision for contract assets and allowance for credit losses were as follows:
 
    
As of December 31,
  
    
2022
     
2023
     
2024
  
    
RMB
     
RMB
     
RMB
     
US$
  
Balance at the beginning of the year
      14,478        35,770        58,790        8,054  
Provisions
      21,292        23,020        3,066        420  
  
 
 
     
 
 
     
 
 
     
 
 
  
Balance at the end of the year
   
 
35,770
 
   
 
58,790
 
   
 
61,856
 
   
 
8,474
 
  
 
 
     
 
 
     
 
 
     
 
 
  
For the year ended December 31, 2023 and 2024, the Group recorded a specific provision for credit losses of RMB22,148 and nil separately for two customers assessed individually with different economic characteristics than the general pool of accounts receivable.