.graph-layout.has-page-index .graph-bodies {
  flex: 1 1 auto;
  min-width: 0;
}

@media (min-width: 1024px) {
  .graph-layout.has-page-index {
    flex-direction: row;
    align-items: flex-start;
    gap: 48px;
  }
}

.page-index {
  opacity: 0;
  pointer-events: none;
  background: var(--primary-color-50, #f7f7f7);
  border: 1px solid var(--primary-color-200, rgba(0, 0, 0, 0.08));
  border-radius: 12px;
  padding: 20px 24px;
  color: var(--text-primary);
  box-shadow: 0 20px 40px -28px rgba(0, 0, 0, 0.5);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
  transform: translateY(10px);
  scrollbar-color: var(--primary-color-200, rgba(0, 0, 0, 0.2)) transparent;
}

.page-index[hidden] {
  display: none !important;
}

.page-index.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

@media (min-width: 1024px) {
  .graph-layout.has-page-index .page-index {
    flex: 0 0 clamp(220px, 25vw, 280px);
  }

  .page-index {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    scrollbar-width: thin;
  }

  .page-index::-webkit-scrollbar {
    width: 6px;
  }
  .page-index::-webkit-scrollbar-thumb {
    background: var(--primary-color-200, rgba(0, 0, 0, 0.2));
    border-radius: 8px;
  }
}

@media (max-width: 1023.5px) {
  .page-index {
    padding: 16px 20px;
  }
}

@media (max-width: 599.5px) {
  .page-index {
    display: none !important;
  }
}

.page-index__inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-index__title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary-color-700, var(--text-primary));
}

.page-index__content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-index__toc {
  display: block;
}

.page-index__toc .toc-macro-heading,
.page-index__toc .toc-title,
.page-index__toc .toc-header {
  display: none !important;
}

.page-index__toc p {
  margin: 0;
}

.page-index__toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-index__toc ul ul {
  margin-top: 6px;
  padding-left: 1.1rem;
}

.page-index__toc > ul > li {
  margin-bottom: 8px;
}

.page-index__toc li:last-child {
  margin-bottom: 0;
}

.page-index__toc a {
  display: inline-block;
  color: var(--primary-color-800, var(--text-primary));
  text-decoration: none;
  line-height: 1.4;
  font-size: 0.95rem;
  transition: color 160ms ease;
  word-break: break-word;
}

.page-index__toc a:hover,
.page-index__toc a:focus {
  color: var(--primary-color-600, var(--primary-color));
  text-decoration: underline;
}

.page-index__toc .is-active > a,
.page-index__toc a.is-active {
  color: var(--primary-color-700, var(--primary-color));
  font-weight: 700;
}

.page-index__toc .toc-indentation {
  padding-left: 1.1rem;
  margin-left: 0.4rem;
  border-left: 1px solid var(--primary-color-200, rgba(0, 0, 0, 0.08));
}

.page-index__toc .toc-indentation > li {
  margin-top: 6px;
}

.page-index__toc .toc-indentation > li:first-child {
  margin-top: 0;
}