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Accounts receivable, net (Tables)

12 Months Ended

Dec. 31, 2024

Credit Loss [Abstract]

Schedule of accounts receivable, net

Schedule of accounts receivable, net
		December 31, 2023				December 31, 2024				December 31, 2024
		RMB				RMB				USD
Accounts receivable			26,963,149				23,714,517				3,298,998
Less: allowance of credit losses			(3,951,391	)			-				-
Accounts receivable, net			23,011,758				23,714,517				3,298,998

Schedule of changes in allowance for doubtful accounts

Schedule of changes in allowance for doubtful accounts
		December 31, 2023				December 31, 2024				December 31, 2024
		RMB				RMB				USD
Beginning balance			8,487,562				3,951,391				549,690
Addition			3,951,391				-				-
Recovery			-				(3,951,391	)			(549,690	)
Deconsolidation of Fe-da and subsidiaries			(8,487,562	)			-				-
Ending balance			3,951,391				-				-

X

- Definition

Tabular disclosure of allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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X

- References

No definition available.

+ Details

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X

- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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