.help-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--rd-sp5);
  align-items: start;
}

@media (max-width: 860px) {
  .help-layout {
    grid-template-columns: 1fr;
  }

  .help-toc {
    position: static !important;
  }
}

.help-toc {
  position: sticky;
  top: calc(var(--rd-sp5) + 60px);
  max-height: calc(100dvh - 120px);
  overflow-y: auto;
}

.help-toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.help-toc-list li {
  margin-bottom: var(--rd-sp2);
}

.help-toc-list a {
  display: block;
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--rd-n7);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}

.help-toc-list a:hover,
.help-toc-list a:focus-visible {
  background: var(--rd-n1);
  color: var(--rd-primary);
}

.help-main {
  display: flex;
  flex-direction: column;
  gap: var(--rd-sp4);
}

.help-section {
  scroll-margin-top: 80px;
}

.help-q {
  padding: var(--rd-sp3) 0;
  border-top: 1px solid var(--rd-n2);
}

.help-q:first-of-type {
  padding-top: var(--rd-sp2);
  border-top: 0;
}

.help-q > summary {
  position: relative;
  padding-right: var(--rd-sp4);
  color: var(--rd-ink);
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

.help-q > summary::-webkit-details-marker {
  display: none;
}

.help-q > summary::after {
  position: absolute;
  top: 0;
  right: 0;
  color: var(--rd-text-sub);
  content: "+";
  font-size: 20px;
  line-height: 1;
  transition: transform 0.15s;
}

.help-q[open] > summary::after {
  content: "-";
}

.help-q > p {
  margin: var(--rd-sp2) 0 0;
  color: var(--rd-n7);
  line-height: 1.6;
}

.help-section.is-hidden,
.help-q.is-hidden {
  display: none;
}