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Related Party Transactions (Details) - CNY (¥) ¥ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Related Party Transactions [Abstract] |  |
Non-revolving facility agreements |  | ¥ 90,000

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- Definition Represents the non-revolving facility agreements guaranteed by the ultimate significant shareholder. + References No definition available. + Details
Name: | anl_NonRevolvingFacilityAgreementsGuaranteedByUltimateSignificantShareholder
Namespace Prefix: | anl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | ifrs-full_RelatedPartyTransactionsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration