.research-reading-layout {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}
.research-reading-layout .research-profiles {
  min-width: 0;
}
.research-contents {
  position: sticky;
  top: 5.5rem;
  max-height: calc(100dvh - 7rem);
  overflow-y: auto;
  font-size: 0.8rem;
}
.research-contents summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--global-divider-color);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.research-contents summary::-webkit-details-marker {
  display: none;
}
.research-contents-toggle::before {
  content: "+";
  font-size: 1rem;
}
.research-contents details[open] .research-contents-toggle::before {
  content: "−";
}
.research-contents nav {
  padding: 0.7rem 0;
}
.research-contents a {
  display: block;
  padding: 0.6rem 0.65rem;
  border-left: 2px solid transparent;
  color: var(--global-text-color);
  line-height: 1.45;
  text-decoration: none;
}
.research-contents a:hover,
.research-contents a:focus-visible {
  color: var(--global-theme-color);
  background: var(--global-code-bg-color);
}
.research-contents a[aria-current="location"] {
  color: var(--global-theme-color);
  border-left-color: var(--global-theme-color);
  background: var(--global-code-bg-color);
}
@media (max-width: 1099px) {
  .research-reading-layout {
    display: block;
  }
  .research-contents {
    top: 4.5rem;
    z-index: 20;
    max-height: 65dvh;
    padding: 0 1rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--global-divider-color);
    border-radius: 4px;
    background: var(--global-bg-color);
  }
  .research-contents summary {
    border-bottom: 0;
  }
  .research-contents details[open] summary {
    border-bottom: 1px solid var(--global-divider-color);
  }
  .research-reading-layout .research-copy > h2 {
    scroll-margin-top: 8.5rem;
  }
}
@media (max-width: 767px) {
  .research-contents {
    top: 3.5rem;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .research-contents details[open] nav {
    animation: research-contents-reveal 160ms ease-out;
  }
  @keyframes research-contents-reveal {
    from {
      opacity: 0;
      transform: translateY(-5px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}
@media print {
  .research-contents {
    display: none;
  }
  .research-reading-layout {
    display: block;
  }
}