<button onclick="scrollToNextElement()">向下滚动</button>

<script>
function scrollToNextElement() {
  var currentElement = document.querySelector('.current-element');
  var nextElement = currentElement.nextElementSibling;
  if (nextElement) {
    nextElement.scrollIntoView({ behavior: 'smooth' });
  }
}
</script>

<button onclick="scrollToPreviousElement()">向上滚动</button>

<script>
function scrollToPreviousElement() {
  var currentElement = document.querySelector('.current-element');
  var previousElement = currentElement.previousElementSibling;
  if (previousElement) {
    previousElement.scrollIntoView({ behavior: 'smooth' });
  }
}
</script>