- 구간 보기: station slider 4+745~5+480 and 5 m prev/next buttons; camera frames a 30 m window - flat shading (one normal per triangle) so the solid surfaces are not smeared - excavation band drawn opaque Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A