雪后保留城市路网

提示词

雪后概念鸟瞰以薄雪区分屋顶与开放地面，主要道路和交叉口仍清楚，雪纹不覆盖原街网关系。

Use thin snow to distinguish roofs and open ground in an aerial concept while keeping main roads and junctions legible rather than hiding the network under snow texture.