対角グリッド外骨格：構造としてのフォルム

Design a high-rise using a steel diagrid exoskeleton that minimizes structural material while maximizing stiffness, transparency, and column-free interior flexibility inspired by Norman Foster. A tower wrapped in a bold triangulated steel exoskeleton standing clear of the glass line, node connections precisely detailed, completely column-free interiors visible behind, the diagrid casting diagonal shadows across the facade, clear midday sun, low viewpoint, 24mm lens, ultra photorealistic, 8K