v3.26.1
Organization and Nature of Operations - Variable interest entity (Details)
 12 Months Ended
Dec. 31, 2025
shareholder
Variable interest entity  
Percent of equity interests in a value added telecommunication service provider 50.00%
Beijing CHJ  
Variable interest entity  
Power of attorney period (in years) 10 years
Beijing CHJ | Spouses of shareholders  
Variable interest entity  
Number of shareholders' spousal consent letters 2
Ownership percent 100.00%
Xindian Information | Spouses of shareholders  
Variable interest entity  
Number of shareholders' spousal consent letters 9
Ownership percent 98.10%
Wheels Technology  
Variable interest entity  
Power of attorney period (in years) 10 years
Wheels Technology | Beijing CHJ | Exclusive Consultation and Service Agreements  
Variable interest entity  
Service fee payment period (in days) 10 days
Service fee payment period with which after end of relevant calendar quarter (in days) 30 days
Contract term (in years) 10 years
Equity interests agreed to pledge (as a percent) 100.00%