Leases - Cash flow information (Details) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Leases | |||
| Total cash outflow for principal elements of lease payment | ¥ 556,774 | ¥ 566,110 | ¥ 700,021 |
| Total cash outflow for related interest paid | ¥ 64,692 | ¥ 59,970 | ¥ 71,288 |