侘寂グレーのバスルーム：一体成型されたセメント感

Show a Taiwanese bathroom finished as one continuous seamless mineral surface. Apply a waterproof micro-cement to floor, walls, ceiling, the shower area and the bath surround alike, in a soft warm grey with subtle cloudy variation and no joints anywhere, so the room reads as a single carved volume. Carve the washbasin directly out of a thick wall-hung slab of the same material, with a slot drain and a wall-mounted matte black tap. Set a deep soaking tub into a plinth of the same finish, its edge softened with a generous radius. Show the shower defined only by a linear floor drain and a frameless glass panel, with a recessed niche holding a bar of soap and a rough ceramic dish. Add one small square window with a deep reveal admitting a hard shaft of daylight that lands on the floor. Use a rough linen towel on a simple timber peg and a single dried stem in a stoneware bottle. Photorealistic, monastic and calm, strong single light source, eye-level view.