Advanced AI Prompt for Three.js Scroll-Synced Particle Dispersion

Act as a Technical SEO and WebGL Integration Specialist. Create a Three.js particle background that is mathematically synchronized to the native DOM scrollbar. As the user's viewport intersects and scrolls toward the [TARGET_SECTION], the monolithic particle structure must violently disperse outward by a calculated [DISPERSION_RADIUS] and undergo a continuous [COLOR_SHIFT] via HSL interpolation. Map the precise DOM scroll percentage directly to a uniform float utilizing the defined [SCROLL_SENSITIVITY] multiplier. To optimize Google PageSpeed Insights (LCP/TBT), ensure the Three.js `<canvas>` is locked via `position: fixed` and implement an `IntersectionObserver` that completely halts the `requestAnimationFrame` loop whenever the canvas is scrolled out of the visible viewport.