黑色太空中由灰色小球組成的17x17x17立方晶格，外圍環繞發光青色環面的3D視覺化

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Create a 3D visualization: a tight 17x17x17 cubic lattice made of small gray spheres—fermion dots—floating in black space. Around it, a glowing cyan toroidal shell wraps like a perfect halo, thin and luminous, pulsing faintly at 197 Hz. No text, no l...