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Manufacturing in collaboration with JAC (Details) - CNY (¥)
¥ in Thousands
1 Months Ended 6 Months Ended
Dec. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Manufacturing in collaboration with JAC      
Total consideration of asset transfer agreement ¥ 3,600,000    
Collaborative Arrangement | Vehicle sales      
Manufacturing in collaboration with JAC      
Aggregate fees under collaboration agreement   ¥ 0 ¥ 166,475