弹簧与图表白板

Create a 15s motion-graphics film explaining {{PRODUCT}}. HyperFrames + GSAP, no voiceover, no footage.
Style: paper-light canvas, marker notes that draw on, real physics, huge kinetic type,
hard light/dark switches, a new idea every 1.5–2 s, a sound on every hit.

COPY: read {{POSITIONING_DOCS}} first. {{ONE_LINER}} For {{AUDIENCE}}. {{WHAT_IT_DOES}}
Name what the product learns, never the abstraction.

RULES
- No chrome (scrubber, timecode, fps, headers). No animator jargon on screen
  ("squash", "stagger", "easing"...). Every word speaks to the buyer.
- No invented results: no %, multipliers, customer names or figures.
- Never use: {{BANNED_WORDS}}.
- Logo: real mark {{LOGO_FILE}} + "{{PRODUCT}}" in {{WORDMARK_FONT}}; never a boxed logo file.

CRAFT
- Colours {{COLOR_CANVAS}} / {{COLOR_INK}} / {{COLOR_ACCENT_1}} / {{COLOR_ACCENT_2}}; notes in the
  accents; dark mode = charcoal matching the palette.
- Fonts {{BRAND_FONTS}}; Anton for kinetic type; Caveat handwriting via stroke-dashoffset.
- Real easing, squash/stretch, stagger, overlap, onion skin, smear, follow-through. Check the
  HyperFrames registry first. Set every from-state at t=0 (seek-safe); never cover an exit.
  One primary move per transition; no generic push/slide/rotate-swing.
- Music in sections: drums drop on the dark switch and while the ball is airborne, slam back
  on the type and the logo. SFX: pops, pen scribbles, whooshes, logo sub-hit. CC0 or generated
  only; log sources. Master -14 LUFS, -2 dBTP, re-measured after AAC encode.