:root {
  color-scheme: light;
  --bg: #ffffff;
  --text: #1f2937;
  --muted: #4b5563;
  --border: #e5e7eb;
  --divider: #dbeafe;
  --best: #ffd8d8;
  --second: #fff3bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.hero {
  background: #f2f6ff;
  color: var(--text);
  text-align: center;
  padding: 40px 0 32px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 2.4vw, 2.5rem);
  line-height: 1.2;
}

.title-acronym,
.title-initial {
  color: #1e3a8a;
  font-weight: inherit;
}

.badge {
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: #1d4ed8;
}

.authors {
  margin: 0;
  color: var(--text);
}

.authors sup,
.affiliation-name sup,
.author-note {
  font-size: 0.7em;
}

.author-note {
  margin: 8px 0 0;
  color: var(--muted);
}

.affiliation-grid {
  margin: 14px 0 4px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(56px, 9vw, 130px);
  flex-wrap: wrap;
}

.affiliation-item {
  width: 240px;
  text-align: center;
}

.affiliation-item img {
  display: block;
  margin: 0 auto;
  width: auto;
  object-fit: contain;
}

.logo-zju {
  height: 66px;
}

.logo-lightspeed {
  height: 56px;
}

.affiliation-name {
  margin: 8px 0 0;
  color: var(--muted);
}

.venue {
  margin: 8px 0 0;
  color: #1d4ed8;
  font-weight: 600;
}

.definition {
  max-width: 860px;
  margin: 14px auto 0;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.55;
}

.keywords {
  margin: 18px 0 0;
}

.keywords-label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #1d4ed8;
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.keyword-list span {
  display: inline-block;
  background: #eff6ff;
  border: 1px solid var(--divider);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
  line-height: 1.3;
  color: #1e3a8a;
}

.facts {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.fact-card {
  margin: 0;
  padding: 16px 18px 18px;
  background: #f2f6ff;
  border: 1px solid var(--divider);
  border-left: 3px solid #2563eb;
  border-radius: 10px;
  text-align: left;
}

.facts dt {
  margin: 0 0 8px;
  font-weight: 700;
  color: #1e3a8a;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
}

.facts dd {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.55;
}

.facts dd strong {
  color: #1e3a8a;
  font-weight: 700;
}

.links {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.links a {
  color: #1e3a8a;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--divider);
  background: #eff6ff;
  border-radius: 999px;
  padding: 8px 14px;
  display: inline-block;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.links a:hover {
  background: #dbeafe;
  border-color: #bfdbfe;
  color: #1e3a8a;
}

main {
  padding: 4px 0 24px;
}

.card {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 30px 0;
  margin: 0;
  box-shadow: none;
}

.card + .card {
  border-top: 1px solid var(--divider);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.4rem;
  text-align: center;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

img,
video {
  display: block;
  width: 100%;
  border-radius: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.caption {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

.abstract-text {
  max-width: 980px;
  margin: 0 auto;
  color: var(--text);
  text-align: left;
}

.pipeline-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.pipeline-item .caption {
  text-align: left;
}

.performance-item + .performance-item {
  margin-top: 28px;
}

.performance-tables {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 28px;
}

.performance-tables .performance-item + .performance-item {
  margin-top: 0;
}

.performance-tables table {
  min-width: 0;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid var(--divider);
  padding: 8px 10px;
  text-align: left;
  font-size: 0.92rem;
}

th {
  background: #f8fafc;
  white-space: nowrap;
}

.group-row td {
  background: #eef2f7;
  font-weight: 700;
}

.best {
  background: var(--best);
}

.second {
  background: var(--second);
}

.bibtex {
  margin: 0;
  padding: 14px 16px;
  background: #f8fafc;
  border: 1px solid var(--divider);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
}

@media (max-width: 900px) {
  .affiliation-grid {
    gap: 28px;
  }

  .affiliation-item {
    width: 220px;
  }

  .logo-zju {
    height: 54px;
  }

  .logo-lightspeed {
    height: 46px;
  }

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

  .pipeline-item .caption {
    text-align: center;
  }

  .performance-tables {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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