Accounts receivable, net (Details Narrative) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2026
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Credit Loss [Abstract] | |||
| Allowance for credit loss | $ 15,724 | ¥ 108,423 | ¥ 2,306,700 |
| Write-off | $ 273,180 | ¥ 1,883,741 | ¥ 51,892 |