:root {
  --fg: #1a1a1a;
  --fg-soft: #3b3b3b;
  --muted: #686868;
  --accent: #8b0000;
  --bg: #fff;
  --bg-alt: #f7f5f1;
  --border: #e4ded4;
  --link: #711818;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --max-width: 1080px;
  --narrow-width: 820px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

figure {
  margin: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container.narrow {
  max-width: var(--narrow-width);
}

.hero {
  padding: 72px 0 42px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.hero h1 {
  max-width: 900px;
  margin: 0 auto 24px;
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 400;
  line-height: 1.13;
  letter-spacing: -0.025em;
}

.authors {
  margin: 0 0 3px;
  color: var(--fg-soft);
  font-size: 1.05rem;
}

.authors sup,
.affiliations sup {
  color: var(--accent);
  font-weight: 700;
}

.affiliations {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.94rem;
}

.venue {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--fg);
  color: #fff;
  font-size: 0.93rem;
  font-weight: 600;
  transition: background 0.15s ease, transform 0.15s ease;
}

.link-btn:hover {
  background: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.link-btn.muted {
  background: #e8e2d8;
  color: #74695f;
  cursor: default;
}

.link-btn.muted:hover {
  transform: none;
}

.teaser-section {
  padding: 40px 0 20px;
}

.teaser-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.section.alt {
  background: var(--bg-alt);
}

.section h2 {
  margin: 0 0 28px;
  color: var(--fg);
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  text-align: center;
}

.section h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin: 14px auto 0;
  background: var(--accent);
}

.section p,
.section-intro {
  max-width: 820px;
  margin: 0 auto 18px;
  color: var(--fg-soft);
  font-size: 1.02rem;
  line-height: 1.75;
  text-align: justify;
}

.slider {
  position: relative;
  max-width: 980px;
  margin: 36px auto 0;
}

.slider-track {
  position: relative;
  width: 100%;
  aspect-ratio: 1920 / 690;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.slider-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.slider-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.slider-slide video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #fff;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  color: var(--fg);
  cursor: pointer;
  font-size: 1.6rem;
  line-height: 1;
  transform: translateY(-50%);
  transition: background 0.15s ease, transform 0.15s ease;
}

.slider-arrow:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.05);
}

.slider-arrow.prev {
  left: -20px;
}

.slider-arrow.next {
  right: -20px;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}

.dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid var(--muted);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.dot.active {
  border-color: var(--accent);
  background: var(--accent);
}

.wide-fig {
  max-width: 960px;
  margin: 36px auto;
}

.wide-fig img {
  display: block;
  width: 100%;
  height: auto;
}

.method-eqs {
  max-width: 820px;
  margin: 32px auto 0;
}

.method-eqs p {
  margin: 18px 0 10px;
}

.equation {
  overflow-x: auto;
  margin: 10px 0 22px;
  padding: 6px 0;
  color: var(--fg);
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.5;
}

.equation mjx-container[display="true"] {
  margin: 0.25em 0;
  min-width: max-content;
}

.bench-slider {
  max-width: 880px;
  margin: 24px auto 0;
}

.bench-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}

.bench-tab {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--fg-soft);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
}

.bench-tab:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.bench-tab.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.bench-stage {
  position: relative;
}

.bench-stage .slider-arrow.prev {
  left: -20px;
}

.bench-stage .slider-arrow.next {
  right: -20px;
}

.bench-panel {
  display: none;
  margin: 0;
}

.bench-panel.active {
  display: block;
}

.table-caption {
  padding: 0 4px 14px;
  color: var(--fg-soft);
  font-family: var(--serif);
  font-size: 0.96rem;
  line-height: 1.55;
  text-align: justify;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--fg);
  font-size: 0.92rem;
}

.result-table th,
.result-table td {
  padding: 9px 14px;
  border-bottom: 1px solid #eee6d6;
  text-align: right;
  white-space: nowrap;
}

.result-table thead th {
  border-bottom: 2px solid var(--fg);
  background: #faf7f1;
  font-weight: 700;
}

.result-table th:first-child,
.result-table th:nth-child(2),
.result-table td:first-child,
.result-table td:nth-child(2) {
  text-align: left;
}

.result-table tbody tr.sep > td {
  border-top: 1px solid var(--fg-soft);
}

.result-table .best {
  background: #d6ecf8;
  font-weight: 700;
}

.result-table .sec {
  background: #eaf5fb;
}

.bibtex {
  overflow-x: auto;
  margin: 0;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  background: #fff;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.6;
}

footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
}

footer p {
  margin: 0;
}

footer .thanks {
  margin-top: 8px;
  font-size: 0.84rem;
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .hero {
    padding: 52px 0 32px;
  }

  .section {
    padding: 48px 0;
  }

  .section p,
  .section-intro,
  .table-caption {
    text-align: left;
  }

  .slider-arrow {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.86);
  }

  .slider-arrow.prev,
  .bench-stage .slider-arrow.prev {
    left: 6px;
  }

  .slider-arrow.next,
  .bench-stage .slider-arrow.next {
    right: 6px;
  }
}