/*
 * anchor_block.css
 * Renders as 0px tall and invisible — no layout impact whatsoever.
 * The block-level display is needed so the span can be a valid scroll target
 * that IntersectionObserver and scrollIntoView() can locate reliably.
 */
.anchor-block {
  display: block;
  position: relative;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
}