Accounts and Notes Receivables, Net - Schedule of Movements of the Allowance for Doubtful Accounts (Details) - CNY (¥) ¥ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Movements of the Allowance for Doubtful Accounts [Abstract]
Balance at the beginning of the year	¥ 32,019	¥ 31,381	¥ 31,381	¥ 34,969	¥ 23,298
Additions/(reversal)			1,408	(892)	11,671
Write-off		¥ (770)	(770)	(2,696)
Balance at the end of the year			¥ 32,019	¥ 31,381	¥ 34,969

Amount of allowance for credit loss on accounts receivable.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Name Accounting Standards Codification
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-Subparagraph (SX 210.5-02(4))
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant