antd-mobile/2x/es/components/progress-bar/progress-bar.css

<img src="https://gw.alipayobjects.com/mdn/rms_ee68a8/afts/img/A*hjjDS5Yy-ooAAAAAAAAAAAAAARQnAQ" alt="logo" width="100%" />

.adm-progress-bar {
  --track-width: var(--adm-progress-bar-track-width, 6px);
  --track-color: var(--adm-progress-bar-track-color, #e5e5e5);
  --fill-color: var(--adm-progress-bar-fill-color, var(--adm-color-primary));
}

.adm-progress-bar-trail {
  background: var(--track-color);
  overflow: hidden;
  height: var(--track-width);
  border-radius: var(--track-width);
}

.adm-progress-bar-fill {
  transition: width 0.3s;
  background: var(--fill-color);
  height: 100%;
  border-radius: var(--track-width);
}