Trade receivable (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2023
CNY (¥)
|
|---|---|---|---|
| Accounts, Notes, Loans and Financing Receivable | |||
| Trade receivable | ¥ 135,112 | $ 18,510 | ¥ 143,523 |
| Within 3 months | |||
| Accounts, Notes, Loans and Financing Receivable | |||
| Trade receivable | 75,719 | 133,285 | |
| Between 3 months and 6 months | |||
| Accounts, Notes, Loans and Financing Receivable | |||
| Trade receivable | 50,223 | 1,437 | |
| Between 6 months and 1 year | |||
| Accounts, Notes, Loans and Financing Receivable | |||
| Trade receivable | 904 | 647 | |
| More than 1 year | |||
| Accounts, Notes, Loans and Financing Receivable | |||
| Trade receivable | ¥ 8,266 | ¥ 8,154 |