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

Accounts receivable consisted of the following:

 

   As of 
   December 31,   December 31, 
   2024   2025 
   RMB   RMB   US$ 
Accounts receivable   57,799,537    89,837,659    12,781,365 
Allowance for credit losses related to accounts receivable   (19,102,954)   (22,371,073)   (3,182,773)
Total accounts receivable, net   38,696,583    67,466,586    9,598,592 
Schedule of Allowance of Credit Losses

The movement of allowance of credit losses is as follows:

 

   As of 
   December 31,   December 31, 
   2024   2025 
   RMB   RMB   US$ 
Beginning balance   10,196,104    19,102,954    2,717,812 
Addition   13,678,040    3,446,953    490,404 
Reversal   (4,764,444)   
-
    
-
 
Write off   (6,746)   (178,834)   (25,443)
Ending balance   19,102,954    22,371,073    3,182,773