:root{color-scheme:light;font-family:Noto Sans TC,PingFang TC,sans-serif;background:linear-gradient(180deg,#121212,#1f1f1f);color:#f5f5f5}*{box-sizing:border-box}body{margin:0;min-height:100vh}.app-shell{display:grid;gap:16px;min-height:100vh;padding:16px}.status-bar,.controls{display:flex;justify-content:center}.status-bar p{margin:0;padding:12px 16px;border-radius:999px;background:#ffffff14}.camera-stage{position:relative;display:grid;place-items:center;border-radius:20px;overflow:hidden;background:#000;min-height:50vh}#cameraVideo,#overlayCanvas{width:100%;height:auto;display:block}#cameraVideo{position:relative;z-index:0}#overlayCanvas{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;z-index:1}.notice-badge{position:absolute;top:12px;right:12px;padding:8px 12px;border-radius:999px;background:#dc2626eb;color:#fff;font-weight:700;z-index:2}button{border:0;border-radius:999px;padding:12px 20px;font:inherit;font-weight:700}.controls{gap:12px}@media(min-width:768px){.app-shell{width:min(960px,100%);margin:0 auto;padding:24px}.camera-stage{min-height:60vh}}