清水模候车亭：一块被挖空的混凝土量体

Design a bus shelter as a single monolithic concrete object with a space carved out of it. Show a solid rectangular mass of board-formed fair-faced concrete, its board marks running horizontally and continuing uninterrupted around every corner, with the tie holes on a strict grid. Detail the sheltered space as a void cut into this mass — the opening a clean rectangular aperture with no frame and no lintel expressed, its reveals as carefully finished as the outer face. Show a bench formed as part of the same casting, a simple cantilevered slab emerging from the rear wall with a slight chamfer to its front edge. Detail a narrow horizontal slot cut through the rear wall at seated eye level, framing a strip of what lies behind. Show the concrete meeting the pavement directly with no plinth and no kerb, cast into a matching apron. Set it on an urban street with mature trees. Show low afternoon sun raking across the board texture and casting a deep shadow into the void. Photorealistic, monolithic, grey with sharp shadow, low three-quarter view.