Long-term investments (Details Narrative) |
Jun. 30, 2026
USD ($)
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Jun. 30, 2026
CNY (¥)
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Dec. 31, 2025
CNY (¥)
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| Financial Instruments Owned and Pledged as Collateral [Line Items] | |||
| Cost method investments | $ 14,229 | ¥ 96,911 | ¥ 96,911 |
| Investment 1 [Member] | |||
| Financial Instruments Owned and Pledged as Collateral [Line Items] | |||
| Impairment allowance | 78,430 | 534,181 | |
| Investment 2 [Member] | |||
| Financial Instruments Owned and Pledged as Collateral [Line Items] | |||
| Impairment allowance | $ 83,529 | ¥ 568,908 |
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- References No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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