v3.25.4
Summary of Material Accounting Policies - Property, plant and equipment (Details)
12 Months Ended
Dec. 31, 2025
Machinery  
Office equipment  
Estimated useful lives of property, plant and equipment 3 years
Office equipment  
Office equipment  
Estimated useful lives of property, plant and equipment 5 years
Minimum | Leasehold improvements  
Office equipment  
Estimated useful lives of property, plant and equipment 2 years
Maximum | Leasehold improvements  
Office equipment  
Estimated useful lives of property, plant and equipment 3 years