対角グリッドタワー：最小材料で最大の剛性

Design a skyscraper using an exposed diagrid structural system that minimizes structural material while maximizing stiffness, transparency, and architectural elegance inspired by Norman Foster. A tapering tower whose entire load is carried by an expressed diagonal steel grid with no vertical columns, triangular glazing panels following the structural rhythm exactly, node connections detailed as the main visual event, clear sky, low viewpoint emphasising the taper, 24mm lens, ultra photorealistic, 8K