อินโฟกราฟิกท่านั่งทำงานตามหลักสรีรศาสตร์

A workplace safety guide infographic illustrating correct desk sitting posture to prevent back pain. The layout features a side-by-side comparison of two figures seated at desks: one in an incorrect, slouched posture highlighted with red X marks at strain points, and the other in a proper, ergonomic posture highlighted with green checkmarks showing correct alignment. Minimalist corporate vector illustration style, clean lines, simple shapes, neutral light background, highly legible and universally understandable.