v3.26.1
Fair Value Measurements - Reconciliation of fair value measurements of available-for-sale debt investments (Details) - Available-for-sale Securities - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair Value Measurements      
Beginning balance ¥ 313 ¥ 309 ¥ 304
Currency translation adjustment (7) 4 5
Ending balance ¥ 306 ¥ 313 ¥ 309