:root {
  --primary: #17365d;
  --primary-dark: #102943;
  --accent: #2b6cb0;
  --accent-soft: #ebf8ff;
  --orange: #dd6b20;
  --green: #2f855a;
  --purple: #6b46c1;
  --background: #ffffff;
  --background-alt: #f7fafc;
  --text: #2d3748;
  --text-light: #718096;
  --border: #e2e8f0;
  --max-width: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--background);
  font-family: "Noto Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

img,
video {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 1000;
  padding: 8px 14px;
  color: #fff;
  background: var(--primary);
  border-radius: 6px;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  overflow-x: auto;
  background: rgba(237, 242, 247, 0.97);
  border-top: 1px solid #d7dee8;
  border-bottom: 1px solid #d7dee8;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.nav-list {
  display: flex;
  justify-content: center;
  width: max-content;
  min-width: 100%;
  margin: 0;
  padding: 0 22px;
  list-style: none;
}

.nav-list a {
  display: block;
  padding: 14px 20px;
  color: var(--text);
  border-bottom: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible,
.nav-list a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  outline: none;
}

.paper-hero {
  padding: 58px 0 54px;
  text-align: center;
  background: #fff;
}

.hero-container {
  max-width: 1080px;
}

.paper-hero h1 {
  max-width: 1020px;
  margin: 0 auto 24px;
  color: var(--primary);
  font-size: clamp(30px, 4.1vw, 46px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3px 8px;
  margin: 0 auto 5px;
  color: var(--text);
  font-size: 17px;
  font-weight: 500;
}

.authors span {
  white-space: nowrap;
}

.authors sup,
.equal-note sup {
  color: var(--accent);
  font-size: 0.7em;
  font-weight: 700;
}

.equal-note {
  margin: 0 0 7px;
  color: var(--text-light);
  font-size: 12px;
}

.affiliation {
  margin: 0 0 15px;
  color: var(--text-light);
  font-size: 15px;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 22px 0 34px;
}

.project-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  color: #fff;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 100px;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.18);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.project-button:hover,
.project-button:focus-visible {
  color: #fff;
  filter: brightness(1.02);
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.22);
  transform: translateY(-1px);
  outline: none;
}

.project-button[aria-disabled="true"] {
  cursor: default;
}

.demo-block {
  max-width: 900px;
  margin: 0 auto;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 14px 38px rgba(23, 54, 93, 0.12);
}

.demo-block video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0b1522;
  border-radius: 6px;
}

.section {
  padding: 62px 0;
}

.section-alt {
  background: var(--background-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 24px;
  color: var(--primary);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
}

.section-intro,
.abstract-text {
  max-width: 860px;
  margin-right: auto;
  margin-left: auto;
  color: var(--text);
  font-size: 16px;
  text-align: justify;
}

.section-intro {
  margin-top: 0;
  margin-bottom: 28px;
}

.abstract-text p {
  margin: 0 0 15px;
}

.paper-figure {
  margin: 34px 0 48px;
  text-align: center;
}

.paper-figure:last-child {
  margin-bottom: 0;
}

.paper-figure img {
  width: 100%;
  height: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 5px;
}

.paper-figure figcaption {
  max-width: 900px;
  margin: 12px auto 0;
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.55;
}

.paper-figure figcaption strong {
  color: var(--text);
}

.overview-figure {
  margin-top: 34px;
}

.overview-figure img {
  border: 0;
}

.overview-figure figcaption {
  margin-top: 6px;
}

.borderless-figure img {
  border: 0;
}

.synthesis-table-block,
.removal-table-block {
  width: 100%;
  margin: 42px 0 0;
}

.table-caption {
  margin: 10px 0 0;
  color: var(--text);
  font-size: 13px;
  text-align: center;
}

.comparison-heading {
  margin: 42px 0 24px;
  color: var(--primary);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
}

.synthesis-table-wrapper,
.removal-table-wrapper {
  margin: 0;
}

.synthesis-table {
  min-width: 900px;
  table-layout: fixed;
}

.synthesis-table .synthesis-column {
  width: 16.6667%;
}

.synthesis-table th:first-child,
.synthesis-table td:first-child {
  text-align: center;
}

.synthesis-table th:nth-child(2),
.synthesis-table td:nth-child(2) {
  text-align: left;
  white-space: nowrap;
}

.synthesis-table .table-group-row th {
  padding: 7px 12px;
  color: var(--primary-dark);
  background: #edf2f7;
  font-style: italic;
  text-align: left;
}

.removal-table {
  min-width: 760px;
  table-layout: fixed;
}

.removal-table .removal-id-column {
  width: 60px;
}

.removal-table .removal-loss-column {
  width: 12%;
}

.removal-table .removal-metric-column {
  width: 16%;
}

.removal-table th:first-child,
.removal-table td:first-child {
  text-align: center;
}

.loss-symbol {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  font-style: italic;
  white-space: nowrap;
}

.loss-symbol sub {
  font-size: 0.72em;
}

.benchmark-table-block {
  margin: 28px 0 0;
}

.benchmark-table-wrapper {
  margin: 0;
}

.benchmark-table-wrapper + .table-caption + .benchmark-table-wrapper {
  margin-top: 34px;
}

.benchmark-table {
  font-size: 14px;
}

.benchmark-video-table {
  min-width: 820px;
}

.benchmark-image-table {
  min-width: 900px;
}

.benchmark-table th,
.benchmark-table td {
  padding: 8px 9px;
  white-space: nowrap;
}

.benchmark-table thead th {
  text-align: center;
}

.benchmark-table th:first-child,
.benchmark-table td:first-child {
  text-align: center;
}

.benchmark-table u {
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.benchmark-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0;
}

.benchmark-card {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(23, 54, 93, 0.05);
}

.benchmark-card h3 {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 19px;
}

.benchmark-card > strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 16px;
}

.benchmark-card p {
  margin: 0;
  color: var(--text-light);
  font-size: 14px;
}

.table-wrapper {
  overflow-x: auto;
  margin: 28px 0 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 830px;
  border-collapse: collapse;
  font-size: 14px;
}

thead {
  color: #fff;
  background: var(--primary);
}

th,
td {
  padding: 10px 12px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
}

th:first-child,
td:first-child {
  text-align: left;
  font-weight: 600;
}

tbody tr:hover {
  background: #edf2f7;
}

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

.highlight-row {
  color: var(--primary-dark);
  background: var(--accent-soft);
}

.citation-container {
  max-width: 900px;
}

.view-counter {
  margin-top: 32px;
  color: var(--text-light);
  font-size: 13px;
  text-align: center;
}

#bibtex {
  margin: 0;
  padding: 22px 24px;
  overflow-x: auto;
  color: #e2e8f0;
  background: #1a202c;
  border-radius: 8px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.65;
  white-space: pre-wrap;
}

footer {
  padding: 25px 0;
  color: var(--text-light);
  background: var(--background-alt);
  border-top: 1px solid var(--border);
  font-size: 12px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 62px;
  }

  .container {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .nav-list {
    justify-content: center;
    min-width: 100%;
    padding: 0 2px;
  }

  .nav-list a {
    padding: 12px 8px;
    font-size: 12px;
  }

  .paper-hero {
    padding: 42px 0 44px;
  }

  .paper-hero h1 {
    font-size: 29px;
  }

  .authors {
    font-size: 14px;
  }

  .section {
    padding: 48px 0;
  }

  .section h2 {
    font-size: 26px;
  }

  .section-intro,
  .abstract-text {
    font-size: 14px;
    text-align: left;
  }

  .paper-figure {
    margin: 28px 0 40px;
  }

  .paper-figure figcaption {
    font-size: 11px;
    text-align: left;
  }

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

  .footer-content {
    align-items: flex-start;
    flex-direction: column;
  }

  #bibtex {
    padding: 18px;
    font-size: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}