Revenue - Contract liabilities are analyzed as follows (Details) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Contract liabilities | |||
| Advance payments received from customers for purchase of goods | ¥ 283,832 | ¥ 262,412 | |
| Total contract liabilities | 411,164 | 358,437 | ¥ 364,982 |
| License fees | |||
| Contract liabilities | |||
| Deferred revenue related to | 54,083 | 66,128 | |
| Others | |||
| Contract liabilities | |||
| Deferred revenue related to | ¥ 73,249 | ¥ 29,897 | |
| Minimum | |||
| Contract liabilities | |||
| Percentage of advance payment for purchase of goods from certain overseas distributors prior to delivery of goods | 20.00% | ||
| Maximum | |||
| Contract liabilities | |||
| Percentage of advance payment for purchase of goods from certain overseas distributors prior to delivery of goods | 100.00% |