Financial assets measured at fair value - Schedule of Investment (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
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|---|---|---|---|---|---|---|---|
| Disclosure of financial assets [line items] | |||||||
| Financial assets measured at FVTPL | [1] | ¥ 1,291 | ¥ 132,352 | ||||
| Financial assets measured at FVOCI, non-current | 92,396 | $ 13,211 | 198,949 | ||||
| Unlisted Investments, Current [Member] | |||||||
| Disclosure of financial assets [line items] | |||||||
| Financial assets measured at FVTPL | [1] | 1,291 | 45 | ||||
| Unlisted Investments, Non-current [Member] | |||||||
| Disclosure of financial assets [line items] | |||||||
| Financial assets measured at FVTPL | [1] | 0 | 132,307 | ||||
| Listed Investments [Member] | |||||||
| Disclosure of financial assets [line items] | |||||||
| Financial assets measured at FVOCI, non-current | [2] | 92,396 | 66,642 | ||||
| Listed Equity Investments [Member] | |||||||
| Disclosure of financial assets [line items] | |||||||
| Financial assets measured at FVOCI, non-current | [2] | ¥ 93,687 | ¥ 198,994 | ||||
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