Boundary Fence Run

Full-height 2.4m security boundary fence spanning exactly 4m per module, distinct from the kit's waist-high plaza balustrade.

风格：low-poly, flat-shaded vertex colors, no textures, 2 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit