XiaoHu's earbuds studio film — community prompt (tested)

GOAL A studio product film for a pair of wireless earbuds. The case opens, the buds rise and present themselves, the case clicks shut. Nothing else happens. OUTPUT One self-contained HTML file. three.js 0.160.0. Canvas 960 x 1080. No other libraries, no build step, no external assets, everything procedural. Fonts: none, there is no text. TIME 6 seconds, seamless loop, 60fps. The music grid is 120 BPM, so one beat is 0.5s and every event time below is on the grid. MODEL Build from measurements, not eyeballing. Case overall 6.0 wide, 4.6 tall, 2.2 deep (cm). Lid hinged at the back, seam a thin torus of polished chrome where lid meets body. Inside deck in matte #D97757, two dark wells. Two buds: head an ellipsoid about 1.4cm, scaled sphere; tip a lathe, soft silicone; stem an oval cylinder about 2.4cm long, polished chrome end cap. LOOK Materials: case in satin ceramic #F4F1EC, roughness 0.38, clearcoat 0.35. Chrome: metalness 1, roughness 0.05. Backdrop a vertical gradient #F0EDE8 to #DEDAD3, seamless studio sweep. Lights, three-point: key #FFF4E8 intensity 3.0 from upper left, fill #E8EEF5 0.6 from the right, rim #FFFFFF 4.0 from behind. Contact shadow under the case. Tone mapping ACES, exposure 1.05. SHOTS 0 to 0.5s: a glint sweeps once across the seam. 0.72 to 0.95s: anticipation. The lid presses 1.5 degrees further shut, the case squashes 2 percent, hold 3 frames. 1.0s: the lid springs open to 100 degrees, spring damping 0.6, overshoot about 10 percent, settled by 1.4s. 1.5s: the buds rise. Right bud first, left bud 4 frames later. As each clears its well it tilts outward 14 degrees and turns 35 degrees toward camera. 2.0s: camera push-in finishes. 2.4 to 4.0s: hold. The buds float, a degree or two of drift. Second glint at 3.0s, along the deck this time. 4.0s: the buds straighten, descend. The dip at the end is magnetic. 4.75s: the lid falls. It shuts at exactly 5.0s, bounces 3 degrees, settled by 5.3s. 5.5s: a glint sweeps again, ready for the next loop. CAMERA fov 30 portrait, starts off-axis, azimuth 34 degrees down to 10, drifting in the whole time. Front three-quarter, never straight on, never top down. BANNED Purple or blue gradients, glow orbs, bloom, neon, lens flares, particles, generic spinning turntables, dark backgrounds, text. If it looks like a crypto landing page, start over. QA Open the file. Let it loop three times. Write down one flaw and fix it. Loop point invisible.