Operating lease liabilities (Supplemental Cash Flow Information) (Details) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Cash paid for amounts included in measurement of liabilities: | |||
| Operating cash flows from operating leases | ¥ 294,383 | ¥ 362,289 | ¥ 432,477 |
| Right-of-use assets obtained in exchange for lease liabilities: | |||
| Operating leases | ¥ 103,930 | ¥ 122,728 | ¥ 429,788 |