Pinyin final: "ao4"

Background: a surreal bathroom interior conceptualized inside a giant biological aorta, featuring a tubular room structure with smooth, curved crimson walls. A central freestanding bathtub with a deep red exterior and white interior sits on a glossy red floor covered in scattered red blood platelets. The space includes a circular skylight and oval side windows framed by hanging red floral vines, revealing a view into connected organs. To the side, a modern white toilet and minimalist white vanity sink contrast against the organic, fleshy textures and warm monochromatic red color palette.