render-subtitle-emphasislisted

# Render Subtitle Emphasis / 字幕强调动效 ## When to use / 何时使用 Punchline moments, key takeaways, statistics needing visual punch. 关键句、核心要点、重点数据需要视觉冲击时。 ## Inputs / 输入 - `--text` phrase to emphasize. - `--style` pop | swipe | typewriter | underline. ## Output / 输出 - `workspace/broll/emph_<id>.mp4` (transparent background available). ## Steps / 步骤 1. Pick template under `templates/broll/emphasis/<style>.html`. 2. Inject text, brand font, accent color. 3. Render at 60 fps; export with alpha if compositing later. ## Examples / 示例 ``` claude run render-subtitle-emphasis --id e03 --text "150ms latency" --style pop ``` ## Failure recovery / 失败回退 - If text > 50 chars, auto-shrink font and warn. - If alpha unsupported by downstream, re-render on brand background.