**Headrest**: 13cm height adjustment, 40° rotation  
**Armrests**: 90° flip, 5cm forward/backward adjustment, 3-level rotation (total 40°)  
**Lumbar Pillow**: Adaptive 20° lumbar support, 10° left/right adaptive adjustment, 4.5cm vertical adjustment  
**Backrest**: White frame with light yellow mesh, 135° reclining angle  
**Seat Cushion**: White frame with special mesh  
**Base**: Nylon five-star base  
**Chassis**: Single-side single-bar explosion-proof chassis, 3-level locking at 135°  
**Gas Lift**: SGS-certified class 4 gas lift