Trade receivables - Summary of Aging Analysis of Trade Receivables (Details) - CNY (¥) ¥ in Thousands |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Trade receivables | ||
| Trade receivables | ¥ 148,057 | ¥ 133,657 |
| 0 - 90 days | ||
| Trade receivables | ||
| Trade receivables | 21,479 | 29,865 |
| 91 - 180 days | ||
| Trade receivables | ||
| Trade receivables | 905 | 17,331 |
| 181 - 365 days | ||
| Trade receivables | ||
| Trade receivables | 45,459 | 26,216 |
| 1 - 2 years | ||
| Trade receivables | ||
| Trade receivables | 25,604 | 52,100 |
| 2 - 3 years | ||
| Trade receivables | ||
| Trade receivables | 47,720 | 7,843 |
| Over 3 years | ||
| Trade receivables | ||
| Trade receivables | ¥ 6,890 | ¥ 302 |