.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  width: 100%;
  height: 3px;
  background: var(--link-hover-color, #30a9de);
  transform: scaleX(0);
  transform-origin: 0 0;
  transition: transform 0.12s linear;
  pointer-events: none;
}