v3.26.3
Share-based compensation - Summary of Total Compensation Costs Recognized (Details)
¥ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2026
CNY (¥)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
CNY (¥)
Share-based compensation      
Total ¥ 778 $ 115 ¥ 694
Research and development      
Share-based compensation      
Total 14 2 116
Sales and marketing      
Share-based compensation      
Total     7
General and administrative      
Share-based compensation      
Total ¥ 764 $ 113 ¥ 571