Cost of delivery services income and other revenues - Summary of cost of other revenues (Details) |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Cost of delivery services income and other revenues | ||||
| Delivery cost | ¥ 27,316,262 | $ 3,906,174 | ¥ 200,004,561 | ¥ 131,685,885 |
| Other costs | 2,991,187 | 427,734 | 711,777 | |
| Total | ¥ 30,307,449 | $ 4,333,908 | ¥ 200,004,561 | ¥ 132,397,662 |