glowing tetrahedron floating in cosmic void, three beams of light (red/blue/gold) radiating from a central white point, geometric symbols (flame/book/lightning) rotating at sphere's edge, sacred geometry with holographic textures, vibrant neon glow against deep space, cinematic volumetric lighting, ultra-detailed sci-fi mysticism 关键元素：发光四面体、三色光束、旋转符号