📄 style.css

.wp-block-accordion-heading__toggle {
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  text-decoration: inherit;
  word-spacing: inherit;
  font-style: inherit;
  background: none;
  border: none;
  color: inherit;
  padding: var(--wp--preset--spacing--20, 1em) 0;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  text-align: inherit;
  width: 100%;
}
.wp-block-accordion-heading__toggle:not(:focus-visible) {
  outline: none;
}
.wp-block-accordion-heading__toggle:hover .wp-block-accordion-heading__toggle-title {
  text-decoration: underline;
}

.wp-block-accordion-heading__toggle-title {
  flex: 1;
}

.wp-block-accordion-heading__toggle-icon {
  width: 1.2em;
  height: 1.2em;
  display: flex;
  align-items: center;
  justify-content: center;
}