Taxes (Details 2)	Jun. 30, 2026 USD ($)	Jun. 30, 2026 CNY (¥)	Dec. 31, 2025 CNY (¥)
Income Tax Disclosure [Abstract]
VAT taxes payable	$ 48,575	¥ 330,835	¥ 439,126
Income taxes payable	2,230,733	15,193,301	12,410,542
Other taxes payable	1,680	11,440	17,982
Total	$ 2,280,988	¥ 15,535,576	¥ 12,867,650

Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(24))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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