.lbl{display:block;margin:16px 0 6px;font-size:14px;color:var(--muted,#667)}
.num{width:100%;margin-top:10px;padding:12px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);font:inherit}
.cv{display:block;max-width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:#fff;touch-action:none}
.sg{width:100%;cursor:crosshair}
.pv{position:relative;display:inline-block;max-width:100%;touch-action:none}
.pv .ov{position:absolute;inset:0;width:100%;height:100%;background:transparent;border:0;cursor:crosshair}
.so{position:absolute;cursor:move;touch-action:none;border:1px dashed var(--brand,#3b3bf0);border-radius:4px}
.so:not([src]){display:none}
.pg{display:flex;align-items:center;gap:12px;margin-top:14px}
.chk{display:inline-flex;align-items:center;gap:6px;font-size:14px}
input[type=range]{width:100%;margin-top:6px}
.msg:empty{display:none}