v3.26.1
Property and equipment, net (Tables)
12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment, net
                       
    December 31,
2024
    December 31,
2025
    December 31,
2025
 
    RMB     RMB     USD  
Office electronic equipment     20,448       20,448       2,909  
Office fixtures and furniture     147,312       155,461       22,118  
Vehicles     1,201,452       1,201,452       170,933  
Subtotal     1,369,212       1,377,361       195,960  
Less: accumulated depreciation     (923,842 )     (1,250,199 )     (177,868 )
Total     445,370       127,162       18,092