Loss per share - Schedule of Earning Per Share (Details)	12 Months Ended
Dec. 31, 2024 CNY (¥) ¥ / shares shares	Dec. 31, 2024 $ / shares	Dec. 31, 2023 CNY (¥) ¥ / shares shares	Dec. 31, 2022 CNY (¥) ¥ / shares shares
Schedule Of Earning Per Share Abstract
Net loss from continuing operations attributable to equity holders of the Company (RMB’000)	¥ 908,330		¥ 1,294,030	¥ 5,637,365
Weighted average number of ordinary shares in issue \| shares	2,630,750,526		2,259,760,407	1,927,746,700
Basic loss per share (RMB per share) \| (per share)	¥ 0.35	$ 0.05	¥ 0.58	¥ 2.92
Basic loss per share (RMB per share) \| ¥ / shares	¥ 0		¥ 0.01	¥ 2.92
Net loss attributable to equity holders of the Company (RMB’000)	¥ 913,484		¥ 1,306,913	¥ 5,637,365
Basic loss per share (RMB per share) \| (per share)	¥ 0.35	$ 0.05	¥ 0.57	¥ 2.92
Net loss from discontinued operations attributable to equity holders of the Company (RMB’000)	¥ 5,154		¥ 12,883	¥ 5,637,365

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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Basic earnings (loss) per share from continuing operations. [Refer: Basic earnings (loss) per share; Continuing operations, unless line item indicates otherwise [member]]

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The profit (loss) from continuing operations attributable to ordinary equity holders of the parent entity. [Refer: Continuing operations, unless line item indicates otherwise [member]; Profit (loss) from continuing operations]

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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