/* ── Hide sidebar drawer button on homepage (desktop only) ── */
@media (min-width: 76.25em) {
  .md-content--home ~ .md-header label[for="__drawer"],
  body:has(.hero) .md-header__button.md-icon[for="__drawer"] {
    display: none;
  }
}

/* ── Hide logo icon in header ── */
.md-header__button.md-logo {
  display: none;
}

/* ── Make header title clickable ── */
.md-header__title {
  cursor: pointer;
}
.md-header__title:hover .md-ellipsis {
  opacity: 0.8;
}

/* ── Light mode: custom dark header ── */
:root,
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #2b2d42;
  --md-primary-fg-color--light: #3d3f5c;
  --md-primary-fg-color--dark: #1a1b2e;
  --md-accent-fg-color: #7c4dff;
}

/* ── Dark mode: let Material handle it, only tweak accent ── */
[data-md-color-scheme="slate"] {
  --md-accent-fg-color: #a78bfa;
}

/* ── Homepage cards ── */
.conf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}
@media (max-width: 960px) {
  .conf-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .conf-grid { grid-template-columns: 1fr; }
}

.conf-card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  padding: 1.2rem 1.5rem;
  transition: box-shadow 0.2s, transform 0.15s;
  background: var(--md-default-bg-color--light, var(--md-default-bg-color));
}

.conf-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  transform: translateY(-2px);
}

[data-md-color-scheme="slate"] .conf-card {
  background: var(--md-default-bg-color--light);
}

[data-md-color-scheme="slate"] .conf-card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.conf-card h3 {
  margin: 0 0 0.3rem 0 !important;
  font-size: 1.15rem;
}

.conf-card h3 a {
  color: var(--md-default-fg-color) !important;
  text-decoration: none;
}

.conf-card .conf-count {
  color: var(--md-default-fg-color--light);
  font-size: 0.85rem;
  margin-bottom: 0.6rem;
}

.conf-card .area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* 语义大类分组容器：组之间留竖向间距 */
.conf-card .area-groups {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.conf-card .area-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.conf-card .area-group-label {
  font-size: 0.7rem;
  color: var(--md-default-fg-color--lighter);
  letter-spacing: 0.05em;
  text-transform: none;
  opacity: 0.85;
}

.conf-card .area-tag {
  display: inline-block;
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}

.conf-card .area-tag:hover {
  background: var(--md-accent-fg-color);
  color: #fff !important;
}

/* ── Hero section ── */
.hero {
  text-align: center;
  padding: 1rem 0 0.5rem;
}

.hero h1 {
  font-size: 2.2rem !important;
  margin-bottom: 0.2rem !important;
}

.hero .hero-subtitle {
  color: var(--md-default-fg-color--light);
  font-size: 1.05rem;
  margin-bottom: 0;
}

.hero .hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 0.6rem 0 0.3rem;
  flex-wrap: wrap;
}

.hero .stat {
  text-align: center;
}

.hero .stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--md-accent-fg-color);
}

.hero .stat-label {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
}

.hero .github-link {
  display: inline-block;
  margin-top: 0.8rem;
  padding: 0.45rem 1.4rem;
  border-radius: 2rem;
  background: var(--md-accent-fg-color);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none !important;
  transition: opacity 0.2s;
}
.hero .github-link:hover {
  opacity: 0.85;
}

/* ── Sidebar: make GitHub repo source widget visible ── */
.md-nav__source .md-source {
  background-color: rgba(0,0,0,.08);
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 4px;
  color: var(--md-default-fg-color);
}
.md-nav__source .md-source:hover {
  background-color: rgba(0,0,0,.12);
}
.md-nav__source .md-source__repository,
.md-nav__source .md-source__fact {
  color: var(--md-default-fg-color--light);
}
.md-nav__source .md-source__icon svg {
  fill: var(--md-default-fg-color--light);
}
[data-md-color-scheme="slate"] .md-nav__source .md-source {
  background-color: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.12);
}
[data-md-color-scheme="slate"] .md-nav__source .md-source:hover {
  background-color: rgba(255,255,255,.14);
}
[data-md-color-scheme="slate"] .md-nav__source .md-source__repository,
[data-md-color-scheme="slate"] .md-nav__source .md-source__fact {
  color: rgba(255,255,255,.7);
}
[data-md-color-scheme="slate"] .md-nav__source .md-source__icon svg {
  fill: rgba(255,255,255,.7);
}

/* ── Sidebar: keep area labels on a single line on desktop ──
   English area labels (e.g. "Information Retrieval & RAG (8)",
   "Robotics & Embodied AI (49)", "Self-Supervised Learning (38)")
   are longer than the Chinese counterparts and wrap to 2 lines with
   the default 12.1rem sidebar width. Widen the primary sidebar and
   force nowrap with ellipsis fallback so each domain stays on one line. */
@media screen and (min-width: 76.25em) {
  .md-sidebar--primary {
    width: 16rem;
  }
  .md-sidebar--primary .md-nav__link,
  .md-sidebar--primary .md-nav__item {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  /* Native browser tooltip (title="…") falls back when text is clipped. */
}

/* ── Paper metadata: make arXiv/code links stand out ── */
.md-content a[href*="arxiv.org"],
.md-content a[href*="github.com"],
.md-content a[href*="github.io"] {
  color: var(--md-accent-fg-color) !important;
  text-decoration: underline;
  text-decoration-style: solid;
  text-underline-offset: 2px;
}

.md-content a[href*="arxiv.org"]::after {
  content: " ↗";
  font-size: 0.8em;
  text-decoration: none;
}

/* ── Mobile: hide heading permalink anchors to prevent accidental taps ── */
@media (max-width: 960px) {
  .headerlink {
    display: none !important;
  }
  /* Hide MkDocs search results on mobile (using Google site search instead) */
  .md-search__output {
    display: none !important;
  }
  /* Shrink article h1 on mobile to save space for long English titles */
  .md-content h1 {
    font-size: 1rem !important;
    line-height: 1.15;
    font-weight: 600;
    margin-top: 0.2rem !important;
    margin-bottom: 0.3rem !important;
  }
}

/* -- Lazy paint long conference index lists (perf) -- */
/* Only applies to conference index pages wrapped in .conf-index */
/* Does NOT affect note pages (no perceivable Ctrl+F / anchor issues elsewhere) */
.conf-index .md-typeset dl > dt,
.conf-index .md-typeset dl > dd,
.md-typeset .conf-index dl > dt,
.md-typeset .conf-index dl > dd {
  content-visibility: auto;
  contain-intrinsic-size: 0 80px;
}

/* ── Conference index intro block (above paper list) ── */

/* 1) Stats bar: 4 numbers (notes / official / areas / coverage) */
.md-typeset .conf-stats-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 0.6rem 1.2rem;
  margin: 0.8rem 0 1.4rem;
  padding: 0.9rem 0.6rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  background: var(--md-default-bg-color);
}
.md-typeset .conf-stats-bar .cs-item {
  text-align: center;
  flex: 1 1 110px;
}
.md-typeset .conf-stats-bar .cs-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--md-accent-fg-color);
  line-height: 1.1;
}
.md-typeset .conf-stats-bar .cs-lab {
  display: block;
  font-size: 0.78rem;
  color: var(--md-default-fg-color--light);
  margin-top: 0.15rem;
}
[data-md-color-scheme="slate"] .md-typeset .conf-stats-bar {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
}

/* 2) Top areas pill bar */
.md-typeset .conf-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.4rem 0 1.2rem;
}
.md-typeset .conf-pills .pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: var(--md-primary-fg-color--light, rgba(63, 81, 181, 0.1));
  color: var(--md-default-fg-color) !important;
  font-size: 0.85rem;
  text-decoration: none !important;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.md-typeset .conf-pills .pill b {
  font-weight: 700;
  color: var(--md-accent-fg-color);
  font-size: 0.85rem;
}
.md-typeset .conf-pills .pill:hover {
  background: var(--md-accent-fg-color--transparent, rgba(0, 188, 212, 0.15));
  border-color: var(--md-accent-fg-color);
}
[data-md-color-scheme="slate"] .md-typeset .conf-pills .pill {
  background: rgba(255, 255, 255, 0.06);
}
[data-md-color-scheme="slate"] .md-typeset .conf-pills .pill:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* 3) Hot subtopics chips (extracted from paper titles) */
.md-typeset .conf-hot-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.4rem 0 1.2rem;
}
.md-typeset .conf-hot-topics .topic {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color);
  font-size: 0.82rem;
}
.md-typeset .conf-hot-topics .topic em {
  font-style: normal;
  font-weight: 600;
  color: var(--md-accent-fg-color);
  font-size: 0.78rem;
}
[data-md-color-scheme="slate"] .md-typeset .conf-hot-topics .topic {
  background: rgba(255, 255, 255, 0.06);
}

/* 4) Related conferences cards */
.md-typeset .conf-related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0.4rem 0 1.4rem;
}
.md-typeset .conf-related .rel-card {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.55rem 0.9rem;
  min-width: 180px;
  flex: 1 1 200px;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 6px;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color) !important;
  text-decoration: none !important;
  transition: border-color 0.15s, transform 0.1s;
}
.md-typeset .conf-related .rel-card:hover {
  border-color: var(--md-accent-fg-color);
  transform: translateY(-1px);
}
.md-typeset .conf-related .rel-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--md-accent-fg-color);
}
.md-typeset .conf-related .rel-desc {
  font-size: 0.78rem;
  color: var(--md-default-fg-color--light);
}
[data-md-color-scheme="slate"] .md-typeset .conf-related .rel-card {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Mobile tweaks for the intro block */
@media (max-width: 600px) {
  .md-typeset .conf-stats-bar .cs-num { font-size: 1.25rem; }
  .md-typeset .conf-stats-bar .cs-lab { font-size: 0.72rem; }
  .md-typeset .conf-related .rel-card { min-width: 140px; flex-basis: 140px; }
}