.nav-arrive--outline {
  outline: var(--jump-outline-width, 2px) solid transparent;
  outline-offset: var(--jump-outline-offset, 2px);
  animation: nav-arrive-outline var(--jump-duration, 2.4s) ease-out 1;
}
@keyframes nav-arrive-outline {
  0%   { outline-color: var(--jump-color, rgba(200, 200, 200, 0.9)); }
  60%  { outline-color: color-mix(in srgb, var(--jump-color, rgba(200, 200, 200, 0.9)) 45%, transparent); }
  100% { outline-color: transparent; }
}

.nav-arrive--fill {
  border-radius: 3px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  animation: nav-arrive-fill var(--jump-duration, 2.4s) ease-out 1;
}
@keyframes nav-arrive-fill {
  0%  { background-color: color-mix(in srgb, var(--jump-color, var(--md-link, var(--link, #9cdcfe))) 55%, transparent); }
  40% { background-color: color-mix(in srgb, var(--jump-color, var(--md-link, var(--link, #9cdcfe))) 32%, transparent); }
}

@media (prefers-reduced-motion: reduce) {
  .nav-arrive { animation-duration: 0.6s; }
}

.contents {
  display: block;
  min-width: 0;
  font-size: var(--contents-size, 0.95rem);
}
.contents[data-contents-sticky] {
  position: sticky;
  top: var(--contents-top, 24px);
  align-self: start;
  max-height: calc(100vh - var(--contents-top, 24px) - 16px);
  overflow-y: auto;
  overscroll-behavior: contain;
  overflow-anchor: none;
}
.contents-title {
  margin: 0 0 0.6em;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--contents-title, var(--muted, #999));
}
.contents-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--contents-gap, 2px);
}
.contents-item { margin: 0; }
.contents-depth-1 { padding-left: var(--contents-indent, 14px); }
.contents-depth-2 { padding-left: calc(var(--contents-indent, 14px) * 2); }
.contents-depth-3 { padding-left: calc(var(--contents-indent, 14px) * 3); }
.contents-depth-4 { padding-left: calc(var(--contents-indent, 14px) * 4); }

.contents-list a {
  display: block;
  padding: var(--contents-pad-y, 4px) 10px;
  border-left: var(--spy-bar, 2px) solid var(--contents-rail, transparent);
  border-radius: 0 var(--contents-radius, 4px) var(--contents-radius, 4px) 0;
  color: var(--contents-fg, var(--muted, #999));
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.contents-list a:hover { color: var(--contents-fg-hover, var(--fg, #fff)); }

:is(.scrollspy, .contents) .is-current {
  color: var(--spy-color, var(--fg, #fff));
  background-color: var(--spy-bg, transparent);
}
.contents-list a.is-current {
  border-left-color: var(--spy-bar-color, var(--accent, currentColor));
  font-weight: var(--spy-weight, inherit);
}

.contents-layout {
  display: grid;
  grid-template-columns: var(--contents-width, 240px) minmax(0, 1fr);
  gap: var(--contents-layout-gap, 40px);
  align-items: start;
}
.contents-layout[data-contents-side="right"] {
  grid-template-columns: minmax(0, 1fr) var(--contents-width, 240px);
}
.contents-layout[data-contents-side="right"] > .contents { order: 2; }
.contents-body { min-width: 0; }

@media (max-width: 760px) {
  .contents-layout,
  .contents-layout[data-contents-side="right"] { grid-template-columns: minmax(0, 1fr); }
  .contents-layout[data-contents-side="right"] > .contents { order: 0; }
  .contents-layout > .contents[data-contents-sticky] {
    position: static;
    max-height: none;
  }
}