:root {
  --qwen-ink: #1a1a1a;
  --qwen-muted: #555;
  --qwen-soft: #f7f8fa;
  --qwen-line: #e6e8ee;
  --qwen-accent: #2563eb;
  --qwen-accent-soft: #eaf1ff;
  --qwen-warm: #c2410c;
  --qwen-ok: #047857;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--qwen-ink);
  background: #fff;
}

.hero-head .navbar {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}

.hero-head .navbar.is-stuck {
  border-bottom-color: var(--qwen-line);
}

.publication-title {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.publication-authors a {
  color: var(--qwen-accent) !important;
}

.publication-venue {
  color: var(--qwen-muted);
  font-weight: 700;
}

.eql-footnote {
  color: var(--qwen-muted);
  font-size: 0.95rem;
}

.teaser-caption {
  max-width: 860px;
  margin: 1rem auto 0;
  color: var(--qwen-muted);
  font-size: 1.05rem;
}

.section-label {
  display: inline-block;
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--qwen-accent);
  margin-bottom: 0.6rem;
}

.section.is-soft {
  background: var(--qwen-soft);
}

.figure-card {
  background: #fff;
  border: 1px solid var(--qwen-line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.figure-card img,
.figure-card video {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}

.figure-caption {
  margin-top: 0.85rem;
  color: var(--qwen-muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.criteria-card {
  background: #fff;
  border: 1px solid var(--qwen-line);
  border-radius: 16px;
  padding: 1.25rem 1.2rem;
  height: 100%;
}

.criteria-card .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--qwen-accent-soft);
  color: var(--qwen-accent);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.criteria-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.criteria-card p {
  color: var(--qwen-muted);
  line-height: 1.55;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.metric-card {
  background: #fff;
  border: 1px solid var(--qwen-line);
  border-radius: 16px;
  padding: 1.1rem 1rem;
  text-align: center;
}

.metric-card .value {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--qwen-accent);
  line-height: 1.1;
}

.metric-card .label {
  margin-top: 0.35rem;
  color: var(--qwen-muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.takeaway {
  margin-top: 1rem;
  padding: 0.95rem 1.1rem;
  border-left: 4px solid var(--qwen-accent);
  background: var(--qwen-accent-soft);
  border-radius: 0 12px 12px 0;
  color: #1e3a8a;
  font-weight: 600;
}

.results-table-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--qwen-line);
  border-radius: 16px;
  padding: 0.5rem;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.results-table th,
.results-table td {
  padding: 0.65rem 0.55rem;
  border-bottom: 1px solid var(--qwen-line);
  text-align: center;
  white-space: nowrap;
}

.results-table th:first-child,
.results-table td:first-child {
  text-align: left;
}

.results-table thead th {
  background: #f8fafc;
  font-weight: 700;
}

.results-table tr.ours td {
  background: #eff6ff;
  font-weight: 700;
}

.results-table .group {
  text-align: left;
  font-weight: 700;
  color: var(--qwen-muted);
  background: #fafafa;
}

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

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

.future-card {
  background: #fff;
  border: 1px solid var(--qwen-line);
  border-radius: 16px;
  padding: 1.25rem;
}

.future-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.future-card p {
  color: var(--qwen-muted);
  line-height: 1.55;
}

.bibtex-box {
  position: relative;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 16px;
  padding: 1.25rem 1.25rem 1.5rem;
  overflow-x: auto;
}

.bibtex-box pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}

.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  border: none;
  border-radius: 999px;
  background: #1e293b;
  color: #fff;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 0.85rem;
}

.copy-btn:hover {
  background: #334155;
}

.side-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--qwen-line);
}

.side-nav .nav-inner {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.65rem 0;
}

.side-nav a {
  white-space: nowrap;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--qwen-muted);
  font-weight: 600;
  font-size: 0.92rem;
}

.side-nav a:hover,
.side-nav a.is-active {
  background: var(--qwen-accent-soft);
  color: var(--qwen-accent);
}

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

.link-block .button {
  border-radius: 999px;
  font-weight: 600;
}

@media screen and (max-width: 900px) {
  .criteria-grid,
  .metric-strip,
  .gallery-grid,
  .future-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .publication-title {
    font-size: 1.8rem !important;
  }
}