/* 签名组件 — 复制到任意页面，或通过 <link> 引入 */
.signature-widget {
  --signature-color: #222222;
  --signature-height: 40px;
  display: inline-block;
  cursor: pointer;
  line-height: 0;
}

.signature-widget:hover {
  opacity: 0.85;
}

.signature-widget:focus-visible {
  outline: 2px solid var(--signature-color);
  outline-offset: 4px;
  border-radius: 2px;
}

.signature-svg {
  height: var(--signature-height);
  width: auto;
  display: block;
  overflow: visible;
}

.signature-widget:not([data-signature-ready]) {
  visibility: hidden;
}

.signature-stroke {
  fill: none;
  stroke: var(--signature-color);
  stroke-width: 1.5;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
  shape-rendering: geometricPrecision;
  stroke-linecap: butt;
  opacity: 0;
}

.signature-stroke.is-drawing,
.signature-stroke.is-complete {
  stroke-linecap: round;
  opacity: 1;
}