/* Palette from the paper figures: SLAM expert blue and generation expert amber */
:root {
  --navy: #0f2a47;
  --text: #111111;
  --body: #222222;
  --muted: #666666;
  --border: #dbe6f0;
  --primary: #0a78b8;
  --primary-dark: #075c8f;
  --highlight: #e5f2f7;
  --accent: #ffc000;
  --gradient: linear-gradient(90deg, var(--primary), var(--accent));
  --gradient-dark: linear-gradient(90deg, var(--navy), var(--primary));
  --tint: #f5f8fb;
  --divider: #f0f2f4;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--body);
  background: #ffffff;
}

a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--primary);
}

.publication-hero {
  padding: 3rem 0 1rem;
}

.hero-copy {
  max-width: 900px;
  margin: 0 auto 2.5rem;
}

.publication-title,
.section-title,
.publication-authors {
  font-family: var(--font);
  color: var(--text);
}

.publication-title {
  margin: 0 auto 1.5rem;
  letter-spacing: -0.02em;
}

.title-main,
.title-sub {
  display: block;
}

.title-main {
  font-size: clamp(2.4rem, 4.4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.1;
}

.title-sub {
  margin-top: 0.5rem;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
}

.section-title {
  display: inline-block;
  margin-bottom: 1.5rem !important;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-title::after {
  content: "";
  display: block;
  width: 100%;
  height: 4px;
  margin-top: 0.6rem;
  border-radius: 2px;
  background: var(--gradient);
}

.result-gap {
  height: 3rem;
}

.publication-authors {
  margin-bottom: 0.4rem;
}

.publication-affiliations {
  color: var(--muted);
}

.publication-notes {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.author-block {
  display: inline-block;
  margin: 0 0.16rem;
}

.publication-links {
  margin-top: 1.5rem;
}

.link-block {
  display: inline-flex;
  margin: 0.3rem;
}

.link-block .button {
  gap: 0.5rem;
  min-width: 140px;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: #ffffff;
  text-decoration: none;
}

.link-block .button:hover {
  border-color: transparent;
  background: var(--gradient-dark) border-box;
  color: #ffffff;
}

.link-block .button.is-static {
  border-color: #b8c4d0;
  background: #b8c4d0;
  color: #ffffff;
}

.button-icon {
  width: 1rem;
  height: 1rem;
}

.button-icon-invert {
  filter: invert(1);
}

.tldr-card {
  margin: 1.75rem auto 0;
  padding: 1rem 1.25rem 1.1rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--tint);
  text-align: left;
}

.tldr-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.tldr-badge {
  display: table;
  margin: 0 auto 0.75rem;
  padding: 0.2rem 0.9rem;
  border: 1.5px solid transparent;
  border-radius: 999px;
  background: linear-gradient(var(--tint), var(--tint)) padding-box, var(--gradient) border-box;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
}

.tldr-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--body);
}

.hero-figure {
  max-width: 1100px;
  margin: 0 auto;
}

.frame-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
}

.frame-card img {
  display: block;
  width: 100%;
  height: auto;
}

.frame-card-plain {
  border: 0;
  border-radius: 0;
}

.method-second-figure {
  margin-top: 2.5rem;
}

.caption {
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.section {
  padding: 2.5rem 1.5rem;
}

.section + .section > .container {
  padding-top: 2.5rem;
  border-top: 1px solid var(--divider);
}

#abstract {
  padding-top: 0.5rem;
}

.content p {
  line-height: 1.8;
}

.table-block {
  width: 85%;
  margin: 1.5rem auto 0;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(15, 42, 71, 0.08);
}

.results-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.96rem;
  text-align: center;
}

.results-table th,
.results-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid #edf2f7;
  color: var(--text);
  vertical-align: middle;
}

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

.results-table thead th {
  font-weight: 600;
  color: var(--text);
  background: #eaf3fa;
  border-bottom-color: var(--border);
}

.results-table tbody tr:last-child td {
  border-bottom: 0;
}

.results-table .group-row td {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  background: #f7fbfe;
}

.results-table .ours-row td {
  background: var(--highlight);
  color: var(--text);
  font-weight: 700;
}

.result-tabs .button {
  border-color: var(--border);
  color: var(--text);
}

.result-tabs .button.is-active {
  border-color: transparent;
  background: var(--gradient-dark) border-box;
  color: #ffffff;
}

pre {
  padding: 1.25rem;
  border-radius: 10px;
  background: var(--navy);
  color: #e8f1f8;
  overflow-x: auto;
}

.footer {
  padding: 2rem 1.5rem 3rem;
  background: #ffffff;
  color: var(--muted);
}

@media screen and (max-width: 768px) {
  .publication-hero {
    padding-top: 1.5rem;
  }

  .section {
    padding: 2.5rem 1.2rem;
  }

  .table-block {
    width: 100%;
  }

  .link-block {
    width: 100%;
    justify-content: center;
  }

  .link-block .button {
    width: 100%;
    max-width: 320px;
  }
}