螺旋斜坡展馆：连续坡道与中央挑空

Design a museum entirely underground in the manner of Kisho Kurokawa whose only visible element is a soaring entrance sculpture of curving steel tubes rising from the plaza like bamboo shoots or an unfolding reed. Compose the tapering steel members springing from a glass roof set flush in the paving, the structure reading as pure movement with no enclosure, a wide granite plaza with shallow reflecting strips, city towers behind, crisp low afternoon light, low view up through the steel, 24mm lens, architectural photography, ultra photorealistic, 8K