v3.26.1
Income taxes - Unrecognized deferred tax assets (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Income taxes    
Unrecognized deferred tax assets ¥ 1,580,932 ¥ 511,360
Deductible temporary differences    
Income taxes    
Unrecognized deferred tax assets 865,741 63,546
Cumulative tax losses    
Income taxes    
Unrecognized deferred tax assets ¥ 715,191 ¥ 447,814