:root {
  --ink: #17131b;
  --muted: #423a47;
  --line: #dcd4e0;
  --soft-line: #e8e1eb;
  --paper: #ffffff;
  --tint: #fbf9fc;
  --purple: #7434b8;
  --purple-dark: #58268e;
  --pink: #d6438a;
  --accent: linear-gradient(105deg, #6d28d9 0%, #a43ed1 52%, #df4b91 100%);
  --reading-size: 18px;
  --page: min(1120px, calc(100vw - 48px));
  --paper-width: min(980px, calc(100vw - 48px));
  --font: "Times New Roman", Times, serif;
  --serif: var(--font);
  --sans: var(--font);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 82px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.menu-open, body.lightbox-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea, code, pre, table { font-family: var(--font); font-weight: 400; }
button { font-size: inherit; }
figure { margin: 0; }
img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-width { width: var(--page); margin-inline: auto; }
.paper-width { width: var(--paper-width); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; z-index: 1000; top: 8px; left: 8px; padding: 8px 13px;
  color: white; background: var(--purple-dark); transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.scroll-progress { position: fixed; z-index: 200; inset: 0 0 auto; height: 2px; }
.scroll-progress span {
  display: block; width: 100%; height: 100%; background: var(--accent);
  transform: scaleX(0); transform-origin: left; will-change: transform;
}

.site-header {
  position: fixed; z-index: 100; inset: 0 0 auto; min-height: 62px;
  display: flex; align-items: center; border-bottom: 1px solid transparent;
  background: rgba(255,255,255,.94); backdrop-filter: blur(12px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 3px 18px rgba(56,34,69,.035); }
.nav { min-height: 62px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.wordmark::after { content: "."; color: var(--pink); }
.nav-panel { display: flex; align-items: center; gap: 25px; }
.nav-panel > a { color: #302936; font-size: 14px; font-weight: 700; transition: color 150ms ease; }
.nav-panel > a:hover { color: var(--purple); }
.nav-paper { margin-left: 4px; }
.menu-toggle { display: none; border: 0; background: transparent; padding: 10px; }
.menu-toggle span:not(.sr-only) { display: block; width: 23px; height: 1.5px; margin: 5px; background: var(--ink); }

.paper-hero {
  padding: 108px 0 54px;
  background: linear-gradient(180deg, #fcfafe 0%, #ffffff 46%);
}
.hero-inner { text-align: center; }
.paper-title {
  max-width: 970px; margin: 0 auto; font-family: var(--serif);
  font-size: clamp(34px, 3.45vw, 40px); line-height: 1.18; letter-spacing: -.02em; font-weight: 700;
}
.title-mark {
  color: transparent; background: var(--accent); background-clip: text; -webkit-background-clip: text;
}
.title-tail { white-space: nowrap; }
.paper-summary {
  max-width: 740px; margin: 24px auto 0; color: #302936; font-family: var(--serif);
  font-size: var(--reading-size); line-height: 1.65;
}
.author-block { margin-top: 31px; }
.authors { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 11px; margin: 0; font-size: 15px; font-weight: 700; }
.authors sup { margin-left: 2px; color: var(--purple); font-size: 9px; }
.author-link { border-bottom: 1px solid transparent; transition: color 150ms ease, border-color 150ms ease; }
.author-link:hover, .author-link:focus-visible { color: var(--purple-dark); border-bottom-color: var(--pink); }
.author-separator { color: #bbb3c1; }
.affiliations { display: flex; flex-wrap: wrap; justify-content: center; gap: 5px 20px; margin: 7px 0 0; color: var(--muted); font-size: 12px; }
.affiliations sup { color: var(--purple); }
.corresponding-author { color: var(--ink); }
.resource-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin-top: 28px; }
.resource-button {
  min-height: 46px; display: inline-flex; align-items: center; gap: 9px; padding: 0 16px;
  border: 1px solid #dcd3e2; border-radius: 7px; color: #4a3d51; background: white;
  font-size: 15px; transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
}
.resource-button strong { font-weight: 600; }
.resource-icon {
  width: 18px; height: 18px; min-width: 18px; display: inline-block; background-color: var(--pink);
  -webkit-mask: var(--resource-icon) center / contain no-repeat;
  mask: var(--resource-icon) center / contain no-repeat;
}
.resource-icon-paper { --resource-icon: url("./assets/icons/arxiv.svg"); }
.resource-icon-code { --resource-icon: url("./assets/icons/github.svg"); }
.resource-icon-model { --resource-icon: url("./assets/icons/huggingface.svg"); }
.resource-icon-demo { --resource-icon: url("./assets/icons/github.svg"); }
.resource-icon-dataset { --resource-icon: url("./assets/icons/huggingface.svg"); }
.resource-button:not(.disabled):hover { color: var(--purple-dark); border-color: #bca3d1; background: #fcf8ff; }
.resource-button.primary:not(.disabled) { color: white; border-color: var(--purple); background: var(--purple); }
.resource-button.primary .resource-icon { background-color: white; }
.resource-button.disabled { color: #918896; background: #faf8fb; cursor: not-allowed; }
.resource-button small { margin-left: 2px; color: #a69fab; font-size: 8px; text-transform: uppercase; letter-spacing: .05em; }
.resource-button.compact { min-height: 38px; padding: 0 12px; font-size: 14px; }
.resource-button.compact .resource-icon { width: 16px; height: 16px; min-width: 16px; }

.hero-figure { width: var(--paper-width); margin-top: 52px; }
.figure-block { width: 100%; }
.image-frame {
  position: relative; width: 100%; padding: 12px; overflow: hidden;
  border: 1px solid var(--line); background: white;
}
.image-frame img,
.figure-block img,
.result-figure img,
.wide-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  object-position: center;
  aspect-ratio: auto;
}
.figure-caption {
  max-width: 1000px; margin: 11px auto 0; color: #302936;
  font-family: var(--serif); font-size: var(--reading-size); line-height: 1.65; text-align: left;
}
.figure-caption strong { color: var(--ink); }
.zoom-button {
  position: absolute; z-index: 2; top: 20px; right: 20px; padding: 6px 10px;
  border: 1px solid rgba(62,44,70,.18); border-radius: 5px; color: #504458;
  background: rgba(255,255,255,.92); box-shadow: 0 3px 12px rgba(39,27,45,.1);
  cursor: pointer; font-size: 10px; font-weight: 700; opacity: .45;
  transition: opacity 150ms ease, border-color 150ms ease;
}
.image-frame:hover .zoom-button, .zoom-button:focus-visible { opacity: 1; border-color: #b79bc8; }

.academic-section { padding: 56px 0; border-top: 1px solid var(--soft-line); }
.section-tint { background: var(--tint); }
.section-content { width: var(--paper-width); min-width: 0; margin-inline: auto; }
.section-content > h2,
.section-content > .reveal > h2 {
  margin: 0; font-family: var(--serif); font-size: clamp(25px, 2.6vw, 30px);
  line-height: 1.1; letter-spacing: -.025em;
}
.abstract-text {
  margin: 20px 0 0; color: #241f29; font-family: var(--serif);
  font-size: var(--reading-size); line-height: 1.84; text-align: justify;
  hyphens: auto;
}
.abstract-text strong { color: var(--purple-dark); }
.section-intro { max-width: 790px; margin: 17px 0 0; color: #302936; font-family: var(--serif); font-size: var(--reading-size); line-height: 1.66; }

.contributions { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line); }
.contributions h3, .subsection h3, .figure-heading h3 {
  margin: 0; font-family: var(--serif); font-size: 25px; line-height: 1.25; letter-spacing: -.015em;
}
.contributions ol { list-style: none; margin: 15px 0 0; padding: 0; }
.contributions li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; padding: 7px 0; }
.contributions li > span {
  width: 24px; height: 24px; display: grid; place-items: center; margin-top: 2px;
  border: 1px solid #cdbbd9; border-radius: 50%; color: var(--purple); font-size: 10px; font-weight: 700;
}
.contributions p { margin: 0; color: #302936; font-size: var(--reading-size); }

.section-content > .figure-block { margin-top: 56px; }
.method-points { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.method-points article { padding: 25px 23px 27px; border-right: 1px solid var(--line); }
.method-points article:first-child { padding-left: 0; }
.method-points article:last-child { padding-right: 0; border-right: 0; }
.method-tag { color: var(--pink); font-size: 9px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.method-points h3 { margin: 8px 0 7px; font-family: var(--serif); font-size: 18px; line-height: 1.25; }
.method-points p { margin: 0; color: var(--muted); font-size: var(--reading-size); line-height: 1.58; }
.subsection { margin-top: 48px; }
.subsection > p { max-width: 790px; margin: 12px 0 0; color: var(--muted); font-family: var(--serif); font-size: var(--reading-size); }

.result-list { margin-top: 36px; }
.result-figure { padding: 0 0 38px; margin: 0 0 38px; border-bottom: 1px solid var(--line); }
.result-figure:last-child { margin-bottom: 0; }
.figure-heading { margin-bottom: 15px; }
.figure-heading h3 { color: var(--ink); font-size: var(--reading-size); }
.quantitative { margin-top: 46px; }
.table-scroll { margin-top: 18px; overflow-x: auto; border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); }
table { width: 100%; min-width: 1080px; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 12px 13px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; font-size: 15px; }
th:first-child, td:first-child { text-align: left; }
th { color: #2e2733; background: #f5f1f7; font-size: 14px; font-weight: 700; }
tbody tr:last-child td { border-bottom: 0; }
td.best { color: var(--purple-dark); font-weight: 800; }
td.second { color: var(--purple); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
tr.group-start td { border-top: 1.5px solid #cfc5d4; }
.column-group { border-left: 1px solid var(--line); text-align: center; }
tr.ours { color: var(--purple-dark); background: #faf4fd; font-weight: 750; }
tr.ours b { margin-left: 5px; color: var(--pink); font-size: 8px; text-transform: uppercase; }
.ablation-table th:first-child, .ablation-table td:first-child,
.ablation-table th:nth-child(2), .ablation-table td:nth-child(2) { text-align: center; }

.dataset-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; margin-top: 45px; align-items: start; }
.data-tuple { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.data-tuple code { padding: 8px 10px; border: 1px solid #d8cce0; border-radius: 4px; color: var(--purple-dark); background: white; font-size: 11px; }
.data-tuple span { color: #a499aa; }
.pipeline-list { list-style: none; margin: 0; padding: 0; }
.pipeline-list li { display: grid; grid-template-columns: 35px 1fr; gap: 12px; padding: 0 0 18px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.pipeline-list li:last-child { margin-bottom: 0; border-bottom: 0; }
.pipeline-list > li > span { color: var(--pink); font: 700 10px/1.5 var(--sans); }
.pipeline-list strong { font-family: var(--serif); font-size: 16px; }
.pipeline-list p { margin: 3px 0 0; color: var(--muted); font-size: var(--reading-size); }
.dataset-resource { margin-top: 30px; }

.citation-card { margin-top: 25px; overflow: hidden; border: 1px solid var(--line); background: #211a26; }
.citation-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; border-bottom: 1px solid #3c3141; color: #c9bfcd; font-size: 10px; }
.citation-top button { padding: 4px 8px; border: 1px solid #514556; border-radius: 3px; color: #e2d8e7; background: transparent; cursor: pointer; font-size: 9px; }
.citation-top button:disabled { opacity: .45; cursor: not-allowed; }
.citation-card pre {
  min-height: 145px; margin: 0; padding: 23px; overflow-x: auto; color: #eee7f1;
  font: 400 14px/1.65 Consolas, Monaco, "Courier New", monospace; white-space: pre-wrap;
}
.citation-card code { color: inherit; font: inherit; }

.footer { padding: 29px 0; border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 26px; align-items: center; color: var(--muted); font-size: 10px; }
.footer-inner strong { color: var(--ink); font-family: var(--serif); font-size: 15px; }
.footer-inner p { margin: 0; }

.lightbox {
  width: 100vw; max-width: none; height: 100vh; max-height: none; margin: 0; padding: 0;
  border: 0; color: white; background: rgba(20,15,24,.97);
}
.lightbox::backdrop { background: rgba(20,15,24,.96); }
.lightbox-close { position: fixed; z-index: 2; top: 20px; right: 22px; padding: 7px 11px; border: 1px solid #554a5a; color: white; background: #2c2431; cursor: pointer; font-size: 11px; }
.lightbox-body { min-height: 100%; display: grid; place-items: center; align-content: center; gap: 16px; padding: 64px 26px 25px; }
.lightbox-body img {
  width: auto; height: auto; max-width: min(96vw, 1800px); max-height: calc(100vh - 125px);
  object-fit: contain; object-position: center; aspect-ratio: auto;
}
.lightbox-body p { max-width: 1000px; margin: 0; color: #cbc2cf; font-family: var(--serif); font-size: 11px; line-height: 1.45; text-align: center; }
.toast { position: fixed; z-index: 220; left: 50%; bottom: 25px; padding: 8px 12px; color: white; background: #2b2230; font-size: 10px; opacity: 0; pointer-events: none; transform: translate(-50%, 10px); transition: opacity 150ms ease, transform 150ms ease; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

.hero-enter { opacity: 0; transform: translateY(10px); animation: enter 620ms cubic-bezier(.2,.8,.2,1) forwards; }
.paper-summary.hero-enter { animation-delay: 60ms; }
.author-block.hero-enter { animation-delay: 120ms; }
.resource-list.hero-enter { animation-delay: 180ms; }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 580ms ease, transform 580ms cubic-bezier(.2,.8,.2,1); }
.reveal.visible { opacity: 1; transform: none; }
@keyframes enter { to { opacity: 1; transform: none; } }

@media (max-width: 900px) {
  :root { --page: min(calc(100vw - 36px), 780px); --paper-width: min(calc(100vw - 36px), 780px); }
  .academic-section { padding: 50px 0; }
  .method-points { grid-template-columns: 1fr; }
  .method-points article, .method-points article:first-child, .method-points article:last-child { padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .method-points article:last-child { border-bottom: 0; }
  .dataset-layout { grid-template-columns: 1fr; gap: 38px; }
}

@media (max-width: 720px) {
  :root { --page: calc(100vw - 28px); --paper-width: calc(100vw - 28px); }
  html { scroll-padding-top: 68px; }
  .site-header, .nav { min-height: 58px; }
  .menu-toggle { display: block; }
  .nav-panel {
    position: fixed; inset: 58px 10px auto; display: grid; gap: 0; padding: 8px;
    border: 1px solid var(--line); background: rgba(255,255,255,.99); box-shadow: 0 14px 42px rgba(53,34,65,.12);
    opacity: 0; visibility: hidden; transform: translateY(-7px); transition: opacity 160ms ease, visibility 160ms ease, transform 160ms ease;
  }
  .nav-panel.open { opacity: 1; visibility: visible; transform: none; }
  .nav-panel > a { padding: 10px 9px; }
  .nav-paper { margin: 7px 0 0; }
  .nav-paper .resource-button { width: 100%; justify-content: center; }
  .paper-hero { padding: 96px 0 48px; }
  .paper-title { font-size: clamp(29px, 8vw, 36px); }
  .title-tail { white-space: normal; }
  .paper-summary { margin-top: 21px; }
  .authors { display: grid; grid-template-columns: 1fr 1fr; }
  .author-separator { display: none; }
  .affiliations { display: grid; gap: 2px; }
  .resource-list { display: grid; grid-template-columns: 1fr 1fr; }
  .resource-button { justify-content: center; }
  .hero-figure { margin-top: 40px; }
  .image-frame { padding: 5px; }
  .zoom-button { top: 11px; right: 11px; }
  .academic-section { padding: 44px 0; }
  .abstract-text { text-align: left; font-size: 17px; }
  .section-content > h2, .section-content > .reveal > h2 { font-size: 27px; }
  .section-content > .figure-block { margin-top: 42px; }
  .result-list { margin-top: 36px; }
  .result-figure { padding-bottom: 32px; margin-bottom: 32px; }
  .subsection { margin-top: 40px; }
  .footer-inner { grid-template-columns: 1fr; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important; animation-duration: .01ms !important;
    animation-iteration-count: 1 !important; transition-duration: .01ms !important;
  }
  .hero-enter, .reveal { opacity: 1; transform: none; }
}