v3.26.1
Related Party Balances and Transactions - Significant related party balances (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Related Party Balances and Transactions      
Amounts due to related parties ¥ 26,644 $ 3,810 ¥ 11,492
Other Liability, Current, Related Party, Type [Extensible Enumeration] us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember
Services | Meituan      
Related Party Balances and Transactions      
Amounts due to related parties ¥ 14,781   ¥ 8,852
Other Liability, Current, Related Party, Type [Extensible Enumeration] us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember
Services | Foshan Che Yijia New Energy Technology Co Ltd [Member]      
Related Party Balances and Transactions      
Amounts due to related parties ¥ 11,838   ¥ 2,575
Other Liability, Current, Related Party, Type [Extensible Enumeration] us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember us-gaap:RelatedPartyMember