补 motion 缺口（一）：a lower-third / subtitle / title-card system for HyperFrames, Motion Canvas, CapCut. Opaque text plates + safe-area awareness keep text readable over any video background; timing/easing tokens define enter-exit animation. The preview animates a mock video frame with replay.
補足動態缺口（一）：給 HyperFrames/Motion Canvas/剪映的下三分之一/字幕/標題卡系統。不透明字板＋安全區意識讓文字疊在任何影片背景上都可讀，timing/easing token 定義進出場動畫。preview 用會動的模擬影片畫面示範、可重播。
Design Notes
Anton display + Inter 900 + JetBrains Mono timecode; for text that must survive over unpredictable footage.
Anton 展示字 + Inter 900 + JetBrains Mono 時間碼；給必須在無法預測的影片畫面上存活的文字。