Window Panel

A thin frosted glass sheet 0.6 x 0.4 m (width 0.4-1.2, height 0.3-0.8 m, 0.02 m grid), 0.005 m thick, 0.04 m corners, thin bright rim; a separate thin title strip with a title decal slot and close glyph. Face z = 0.005 is the mount plane. Accent.

风格：low-poly, flat-shaded vertex colors, no textures, 3 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