Seedance Video Ads video prompt : Ultra-sleek motion design sequence. Pure black background throughout. White-on-black…

Ultra-sleek motion design sequence. Pure black background throughout. White-on-black minimal aesthetic. No cuts — one single continuous unbroken visual evolution. Locked-off static center frame, no camera movement. All motion occurs within the subject. Self-luminous white forms on absolute black, no grain, no shadows. 0–1s [ORIGIN]: A single white point materializes at center frame. It pulses once — three concentric rings ripple outward like a heartbeat and dissolve into black. 1–2s [LINE]: The point stretches into a razor-thin white horizontal line extending edge to edge with elastic ease-out motion. 2–4s [GRID → CIRCLE]: The line multiplies into a precise grid of nine parallel horizontal and vertical lines appearing in staggered succession. The grid warps — outer lines curve inward, the structure rotates, straight lines bend into arcs, converging into a perfect geometric circle outline. 4–6s [WIREFRAME → SOLID SPHERE]: The circle extrudes into a 3D wireframe sphere, every latitude and longitude line crisp, slowly rotating on its vertical axis. The wireframe fills in smoothly — dissolving into a solid white surface with a soft specular highlight in the upper-left quadrant. 6–8s [INTERFACE]: The sphere flattens and unfolds into a clean rectangular plane — a minimal phone interface with rounded corners. Abstract UI elements appear inside: status bar, a grid of rounded app icons, home indicator bar. White line art on black. 8–10s [CUBE → BLOOM]: The interface folds inward, collapsing into an isometric wireframe cube that tumbles once. The cube's six faces peel outward simultaneously, each becoming a smooth white elliptical petal — blooming open like a flower in zero gravity. 10–12s [VORTEX]: The flower dissolves into hundreds of tiny white particles orbiting the center in a controlled elliptical vortex, some clockwise, some counterclockwise, each following a precise mathematical path, flickering softly. 12–13s [WATCH]: The particles decelerate and self-organize — converging and snapping into position to assemble the silhouette of a wristwatch: a clean rectangular case outline with lugs, built entirely from particles. 13–14s [COLLAPSE]: The watch dissolves into fluid white ribbons that compress into a single dense white sphere. It pulses once — brighter than before — then collapses rapidly inward to a single brilliant point. 14–15s [LOGO]: The point holds for one silent beat. Then it expands into a clean minimal brand logo — white sans-serif letterforms on black. A single pulse of warm amber light blooms from center behind the logo, fades to black. White text remains. Style: luxury tech brand motion identity, Bauhaus-minimalist, mathematical precision. Mood: calm, inevitable, intelligent, premium.