:root {
  --bg: #f5efe4;
  --surface: rgba(255, 250, 242, 0.78);
  --surface-strong: #fffaf2;
  --card: rgba(255, 248, 238, 0.92);
  --line: rgba(19, 53, 47, 0.16);
  --text: #18322d;
  --muted: #536963;
  --accent: #0b6e63;
  --accent-strong: #074e47;
  --accent-soft: #dff3ec;
  --signal: #cf5c36;
  --signal-soft: #ffe1d6;
  --shadow: 0 18px 50px rgba(24, 50, 45, 0.12);
  --radius: 24px;
  --radius-sm: 16px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(207, 92, 54, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(11, 110, 99, 0.18), transparent 32%),
    linear-gradient(180deg, #fbf5ea 0%, #f2eadf 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.35;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0;
  line-height: 1.7;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h1,
h2 {
  font-family: "Source Serif 4", serif;
}

.site-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 28px rgba(24, 50, 45, 0.08);
}

.site-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  min-width: 0;
}

.brand-text {
  font-weight: 700;
}

.site-nav {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 118px;
  gap: 8px;
  align-items: center;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.52);
  overflow: hidden;
}

.site-nav::before {
  position: absolute;
  top: 4px;
  left: 0;
  height: calc(100% - 8px);
  width: var(--nav-pill-width, 118px);
  border-radius: 999px;
  content: "";
  background: var(--accent-soft);
  transform: translateX(var(--nav-pill-x, 0));
  opacity: var(--nav-pill-opacity, 0);
}

.site-nav.is-ready::before {
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), width 240ms ease, opacity 180ms ease;
}

.lang-switch {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 4px;
  min-width: 112px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.lang-switch::before {
  position: absolute;
  top: 4px;
  left: 4px;
  bottom: 4px;
  width: calc(50% - 4px);
  border-radius: 999px;
  content: "";
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow:
    0 8px 18px rgba(11, 110, 99, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

body[data-lang="zh"] .lang-switch::before {
  transform: translateX(100%);
}

.lang-switch.is-ready::before {
  transition: transform 260ms ease, background 220ms ease, box-shadow 220ms ease;
}

.lang-switch a {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--muted);
}

.lang-switch a[aria-current="page"] {
  color: #fff;
  transform: translateY(-0.5px);
}

.lang-switch a:not([aria-current="page"]) {
  color: rgba(24, 50, 45, 0.74);
}

.lang-switch.is-ready a {
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav a {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 118px;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav a[href^="mailto:"] {
  width: 118px;
}

.site-nav a[aria-current="page"] {
  color: var(--accent-strong);
}

.site-nav a:hover {
  color: var(--accent-strong);
  transform: translateY(-0.5px);
}

main {
  display: grid;
  gap: 28px;
}

.hero,
.page-hero,
.home-columns,
.publication-table-section,
.community-layout,
.cta-band,
.home-publications {
  opacity: 0;
  transform: translateY(18px);
  animation: rise-in 600ms ease forwards;
}

.page-hero {
  animation-delay: 60ms;
}

.home-columns {
  animation-delay: 100ms;
}

.home-columns,
.publication-table-section,
.community-layout,
.home-publications {
  animation-delay: 140ms;
}

.cta-band {
  animation-delay: 180ms;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 22px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  background:
    linear-gradient(135deg, rgba(255, 250, 242, 0.88), rgba(255, 245, 233, 0.92)),
    linear-gradient(120deg, rgba(11, 110, 99, 0.08), rgba(207, 92, 54, 0.08));
  box-shadow: var(--shadow);
}

.page-hero,
.publication-table-section,
.community-layout,
.cta-band,
.home-publications,
.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.page-hero,
.publication-table-section,
.community-layout,
.cta-band,
.home-publications {
  padding: 28px;
}

.page-hero {
  display: grid;
  gap: 10px;
}

.hero-copy,
.hero-panel {
  display: grid;
  gap: 18px;
}

.hero-copy {
  align-content: start;
}

.eyebrow,
.section-tag,
.signal-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.77rem;
  color: var(--accent);
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  font-size: clamp(2.6rem, 6vw, 5.1rem);
  max-width: 12ch;
}

.page-hero h1 {
  font-size: clamp(2.3rem, 4vw, 3.7rem);
  max-width: 7ch;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.8vw, 4rem);
  max-width: 9ch;
}

.lead {
  max-width: 54ch;
  color: var(--muted);
  font-size: 1rem;
}

.page-quick-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 180px));
  gap: 12px;
  margin-top: 6px;
}

.quick-stat {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(19, 53, 47, 0.08);
  background: rgba(255, 255, 255, 0.62);
}

.quick-stat strong {
  font-size: 1.1rem;
  line-height: 1.2;
}

.quick-stat span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(19, 53, 47, 0.08);
  background: rgba(255, 255, 255, 0.62);
}

.metric-card strong {
  font-size: 1.1rem;
  line-height: 1.2;
}

.metric-card span {
  color: var(--muted);
  font-size: 0.88rem;
}

.button,
.resource-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.resource-link:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff;
  box-shadow: 0 12px 24px rgba(11, 110, 99, 0.22);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.56);
}

.text-link {
  color: var(--accent-strong);
  font-weight: 700;
}

.hero-slider {
  min-height: 100%;
  overflow: hidden;
}

.slider-stage {
  overflow: hidden;
  min-height: 460px;
  border-radius: 24px;
  width: 100%;
}

.slider-track {
  display: flex;
  height: 100%;
  transition: transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.slider-card {
  flex: 0 0 auto;
  display: grid;
  gap: 14px;
  padding: 14px;
  min-height: 460px;
  border-radius: 24px;
  border: 1px solid rgba(11, 110, 99, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 248, 238, 0.86)),
    linear-gradient(135deg, rgba(11, 110, 99, 0.08), rgba(207, 92, 54, 0.08));
  overflow: hidden;
}

.slider-media {
  display: block;
  overflow: hidden;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.84);
}

.slider-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.92);
}

.slider-caption {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.slider-caption .text-link {
  white-space: nowrap;
  flex-shrink: 0;
}

.slider-kicker {
  display: inline-flex;
  margin-bottom: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(11, 110, 99, 0.08);
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
}

.slider-caption h3 {
  margin-bottom: 4px;
  font-family: "Source Serif 4", serif;
  font-size: 1.5rem;
}

.slider-caption p {
  color: var(--muted);
  font-size: 0.92rem;
}

.slider-dots {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(24, 50, 45, 0.2);
  cursor: pointer;
}

.slider-dot.is-active {
  width: 26px;
  background: var(--accent);
}

.home-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 24px;
  display: grid;
  gap: 14px;
}

.feature-card h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.feature-card p {
  color: var(--muted);
}

.home-publications h2,
.publication-table-head h2,
.community-block h2,
.cta-band h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.table-note,
.empty-state p,
.partner-card p,
.member-card p,
.publication-meta p {
  color: var(--muted);
}

.resource-stack,
.news-list {
  display: grid;
  gap: 12px;
}

.resource-panel {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid rgba(19, 53, 47, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  transition: 180ms ease;
}

.resource-panel:hover {
  transform: translateY(-1px);
  border-color: rgba(11, 110, 99, 0.2);
}

.resource-panel strong,
.news-item strong {
  font-size: 1rem;
}

.resource-panel span {
  color: var(--muted);
  font-size: 0.92rem;
}

.news-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid rgba(19, 53, 47, 0.08);
}

.news-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.news-date {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--signal-soft);
  color: var(--signal);
  font-size: 0.8rem;
  font-weight: 700;
}

.news-item p {
  margin-top: 4px;
  color: var(--muted);
}

.news-link {
  color: var(--text);
  font-weight: 700;
}

.news-link:hover {
  color: var(--accent-strong);
}

.section-head,
.publication-table-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.publication-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.publication-card,
.publication-row,
.member-card,
.partner-card,
.empty-state {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.68);
}

.publication-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 22px;
  height: 100%;
}

.publication-card h3,
.publication-row h3 {
  font-family: "Source Serif 4", serif;
  font-size: 1.7rem;
}

.publication-meta {
  display: grid;
  gap: 10px;
  flex: 1 1 auto;
}

.meta-badges,
.resource-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-badges {
  flex-wrap: nowrap;
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 170px;
  min-width: 170px;
  height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(11, 110, 99, 0.1);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 0 0 170px;
}

.resource-link {
  width: 118px;
  padding: 0 14px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  justify-content: center;
  text-align: center;
  gap: 8px;
  flex: 0 0 118px;
  white-space: nowrap;
}

.resource-icon {
  width: 17px;
  height: 17px;
  object-fit: contain;
  flex: 0 0 auto;
}

.resource-link span {
  line-height: 1;
}

.publication-card .resource-list {
  margin-top: auto;
  align-items: flex-end;
}

.resource-link.github {
  background: #17201e;
  color: #fff;
}

.resource-link.arxiv {
  background: #b31b1b;
  color: #fff;
}

.resource-link.hf-model,
.resource-link.hf-dataset {
  background: #f8cf59;
  color: #312100;
}

.publication-table {
  display: grid;
  gap: 16px;
}

.publication-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.88fr) minmax(0, 1.18fr) minmax(240px, 0.8fr);
  gap: 20px;
  padding: 22px;
  align-items: center;
}

.publication-side {
  display: grid;
  align-content: space-between;
  gap: 16px;
}

.publication-side .resource-list {
  justify-content: flex-start;
}

.publication-thumb {
  display: block;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(19, 53, 47, 0.08);
  background: rgba(255, 255, 255, 0.8);
}

.publication-thumb img {
  display: block;
  width: 100%;
  height: auto;
}

.publication-title-line {
  font-size: 0.95rem;
  line-height: 1.55;
}

.community-layout {
  display: grid;
  gap: 22px;
}

.community-block {
  display: grid;
  gap: 18px;
}

.community-grid,
.partner-grid {
  display: grid;
  gap: 16px;
}

.partner-group {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.68);
}

.partner-group-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.community-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.partner-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

#partner-grid.partner-grid {
  grid-template-columns: 1fr;
}

.partner-group .partner-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.member-card,
.partner-card,
.empty-state {
  min-height: 196px;
  padding: 22px;
}

.partner-group .partner-card {
  min-height: 172px;
}

.member-card {
  position: relative;
  overflow: hidden;
  min-height: 138px;
  padding: 18px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.member-card:hover,
.member-card:focus-visible,
.partner-card:hover {
  transform: translateY(-2px);
  border-color: rgba(11, 110, 99, 0.2);
}

.member-card-base {
  display: grid;
  justify-items: start;
  gap: 12px;
  transition: opacity 220ms ease, transform 220ms ease;
}

.member-summary {
  display: grid;
  gap: 2px;
}

.member-summary h3 {
  font-size: 1.08rem;
}

.member-summary p {
  color: var(--muted);
  font-size: 0.92rem;
}

.member-avatar {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  object-fit: cover;
  background: linear-gradient(135deg, rgba(11, 110, 99, 0.14), rgba(207, 92, 54, 0.18));
}

.member-card-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 6px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(7, 78, 71, 0.9), rgba(11, 110, 99, 0.92));
  color: #fff;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 220ms ease, transform 220ms ease;
}

.member-card-overlay strong {
  font-size: 1rem;
}

.member-card-overlay span {
  font-size: 0.92rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.88);
}

.member-card:hover .member-card-overlay,
.member-card:focus-visible .member-card-overlay {
  opacity: 1;
  transform: scale(1);
}

.member-card:hover .member-card-base,
.member-card:focus-visible .member-card-base {
  opacity: 0;
  transform: scale(0.98);
}

.partner-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(11, 110, 99, 0.14), rgba(207, 92, 54, 0.18));
  color: var(--accent-strong);
  font-weight: 700;
}

.partner-logo-image {
  display: block;
  width: 68px;
  height: 68px;
  object-fit: contain;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
  padding: 8px;
}


.empty-state {
  display: grid;
  align-content: center;
  gap: 8px;
  border-style: dashed;
}

.member-controls {
  display: flex;
  justify-content: center;
}

.member-toggle {
  min-width: 210px;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  padding: 18px 4px 0;
  color: var(--muted);
  font-size: 0.94rem;
}

@keyframes rise-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero,
  .publication-row,
  .cta-band,
  .section-head,
  .publication-table-head,
  .site-footer {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .home-columns,
  .publication-preview,
  .page-quick-stats,
  .hero-metrics,
  .partner-grid {
    grid-template-columns: 1fr;
  }

  .community-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .partner-group .partner-grid {
    grid-template-columns: 1fr;
  }

  .publication-row {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 720px) {
  .site-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 16px;
  }

  .site-header {
    position: static;
    top: auto;
    display: grid;
    justify-content: stretch;
    border-radius: 26px;
    padding: 16px;
    margin-bottom: 20px;
  }

  .site-header-right {
    width: 100%;
    display: grid;
    gap: 10px;
    align-items: flex-start;
  }

  .brand {
    width: 100%;
  }

  .brand-text {
    font-size: 0.96rem;
  }

  .site-nav {
    width: 100%;
    grid-auto-columns: minmax(96px, 1fr);
  }

  .site-nav a,
  .site-nav a[href^="mailto:"] {
    width: auto;
  }

  .lang-switch {
    align-self: flex-start;
  }

  .hero,
  .page-hero,
  .publication-table-section,
  .community-layout,
  .cta-band,
  .home-publications,
  .feature-card {
    padding: 20px;
  }

  .hero h1,
  .page-hero h1 {
    max-width: none;
  }

  .slider-caption {
    flex-direction: column;
    align-items: flex-start;
  }

  .slider-stage {
    min-height: 380px;
  }

  .slider-card {
    min-height: 380px;
  }

  .news-item {
    grid-template-columns: 1fr;
  }

  .community-grid {
    grid-template-columns: 1fr;
  }

  .partner-group {
    padding: 18px;
  }

  .partner-group .partner-grid {
    grid-template-columns: 1fr;
  }

  .member-card {
    min-height: 168px;
  }

  .member-card-overlay {
    display: none;
  }

  .member-card-base {
    opacity: 1 !important;
    transform: none !important;
  }

  .publication-row {
    padding: 18px;
  }
}