Independent browser test found a real mobile framing failure. At 390x844 on a fresh load, the bottom controls cover the lower legs. At length 1600 mm with exploded mode, the tabletop clips at the right viewport edge and legs overlap the controls (attached actual screenshot). Repair the responsive scene/camera/layout so the entire assembled or exploded bench remains visible with comfortable margins in the space not covered by controls, at every slider endpoint, on mobile and desktop, including after resize. Preserve correct geometry, working controls, keyboard operation, camera reset, resource disposal and all other requirements. Return complete replacement files.