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Short-term investments (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Short-term investments.
Wealth management products	¥ 41,947	¥ 29,873
Time deposits	13,000	45,624
Total	¥ 54,947	¥ 75,497

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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- Definition

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

+ References

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