Inventories (Details) |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
|
| Inventories [Abstract] | |||||
| Inventory | ¥ 8,280,145 | ¥ 9,165,973 | $ 1,184,045 | ||
| Allowance for inventory valuation | ¥ 1,883,635 | $ 269,355 | ¥ 494,459 | ¥ 503,079 | |