@font-face {
  font-family: "Google Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/google-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "Google Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("assets/fonts/google-sans-500.woff2") format("woff2");
}
@font-face {
  font-family: "Google Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/fonts/google-sans-700.woff2") format("woff2");
}
:root {
  color-scheme: light;
  font-family: "Google Sans", Arial, sans-serif;
  color: #333;
  background: #fff;
  scroll-behavior: smooth;
  scroll-padding-top: 20px;
}
* { box-sizing: border-box; }
body { max-width: 1000px; margin: 40px auto; padding: 0 20px; font-size: 16px; line-height: 1.6; }
a { color: #1a73e8; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, .table-scroll:focus-visible { outline: 3px solid #1a73e8; outline-offset: 4px; }
.container, .reading-container { width: 100%; margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; background: #202124; padding: 10px 16px; color: white; border-radius: 6px; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.hero { text-align: center; margin-bottom: 40px; }
h1, h2, h3 { color: #202124; font-weight: 500; }
h1 { margin: 0 0 24px; font-size: 40px; line-height: 1.6; text-wrap: balance; }
.authors { display: flex; align-items: baseline; justify-content: center; flex-wrap: wrap; gap: 4px 20px; margin: 0 0 10px; font-size: 16px; color: #3c4043; }
.authors a { color: inherit; text-decoration: none; white-space: nowrap; }
.authors a:hover { text-decoration: underline; }
sup { line-height: 0; font-size: 75%; }
.authors sup { margin-left: 2px; }
.affiliation { margin: 0; font-size: 14.4px; color: #5f6368; }
.author-notes { display: flex; justify-content: center; flex-wrap: wrap; gap: 4px 18px; margin: 3px 0 30px; font-size: 13px; color: #5f6368; }
.venue { margin: 0 0 30px; color: #1a73e8; font-size: 24px; font-weight: 500; }
.resource-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.resource-button { display: inline-flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 5px; padding: 10px 20px; border: 0; border-radius: 8px; background: #1a73e8; color: #fff; font-size: 16px; font-weight: 500; line-height: 1.6; text-decoration: none; box-shadow: 0 2px 4px #0000001a; }
.resource-button:disabled { cursor: default; opacity: 1; }
.soon { font-size: 13px; font-weight: 400; }
.video-link:hover { background: #185abc; }
.abstract-section, .content-section, .videos-section { margin: 0 0 30px; padding: 30px; background: #f8f9fa; border: 1px solid #e8eaed; border-radius: 30px; }
.section-heading { margin-bottom: 24px; }
h2 { margin: 0; font-size: 24px; line-height: 1.6; }
.abstract-text { margin: 0; font-size: 14.72px; line-height: 1.6; text-align: justify; }
.paper-figure { margin: 0; }
.figure-image { position: relative; display: block; width: 100%; padding: 10px; border: 1px solid #e8eaed; border-radius: 30px; background: #fff; cursor: zoom-in; }
.figure-image img { display: block; width: 100%; height: auto; border-radius: 20px; }
.enlarge-label { position: absolute; bottom: 12px; right: 14px; opacity: 0; padding: 4px 8px; border-radius: 5px; background: #fffffff2; color: #1a73e8; font-size: 12px; }
.figure-image:hover .enlarge-label, .figure-image:focus-visible .enlarge-label { opacity: 1; }
.paper-figure figcaption { margin-top: 15px; color: #333; font-size: 14.72px; line-height: 1.6; text-align: justify; }
.figure-number, figcaption strong { font-weight: 700; }
var { font-family: "Times New Roman", serif; font-size: 1.1em; white-space: nowrap; }
var.vector { font-weight: 700; }
sub { font-size: 72%; }
.relationship-figure { margin-top: 30px; }
.qualitative-figure { margin-top: 30px; }
.table-scroll { overflow-x: auto; padding: 10px; border: 1px solid #e8eaed; border-radius: 30px; background: white; }
table { border-collapse: collapse; width: 100%; min-width: 820px; font-size: 12px; font-variant-numeric: tabular-nums; }
table caption { padding: 5px 5px 18px; text-align: left; font-size: 14px; line-height: 1.6; caption-side: top; color: #333; }
th, td { padding: 10px 7px; text-align: center; white-space: nowrap; }
thead { background: #f8f9fa; }
thead tr:first-child th { border-top: 1px solid #dadce0; }
thead tr:last-child th { border-bottom: 1px solid #dadce0; font-weight: 500; }
thead .method-column, tbody th { text-align: left; padding-left: 10px; }
tbody th { font-weight: 400; }
tbody tr + tr { border-top: 1px solid #edf0f2; }
.dataset-boundary { border-left: 1px solid #e8eaed; }
tbody .ours { background: #f1f3f4; color: #202124; border-top: 1px solid #dadce0; }
.ours th { font-weight: 700; }
.table-scroll-hint { display: none; }
.video-group-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 15px; }
h3 { margin: 0; font-size: 18px; line-height: 1.6; }
.video-group-heading > span { font-size: 13px; color: #5f6368; }
.video-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.video-card { margin: 0; padding: 10px; overflow: hidden; border: 1px solid #e8eaed; border-radius: 24px; background: #fff; }
.video-card video { display: block; width: 100%; height: auto; background: #000; border-radius: 15px; }
.video-card figcaption { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 5px 0; font-size: 14px; }
.video-duration { color: #5f6368; font-size: 12px; font-variant-numeric: tabular-nums; }
.real-scenes-heading { margin-top: 30px; margin-bottom: 5px; }
.video-description { margin: 0 0 15px; color: #5f6368; font-size: 14px; }
.site-footer { padding-block: 5px 10px; text-align: center; color: #5f6368; font-size: 13px; }
.site-footer p { margin: 0 0 5px; }
.contact-link { text-decoration: none; }
.contact-link:hover { text-decoration: underline; }
.figure-dialog { width: min(1500px, calc(100% - 40px)); max-height: calc(100dvh - 40px); margin: auto; padding: 0; overflow: auto; border: 0; border-radius: 20px; background: #fff; }
.figure-dialog::backdrop { background: #202124b3; }
.dialog-toolbar { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 20px; background: #f8f9fa; border-bottom: 1px solid #e8eaed; }
.dialog-toolbar h2 { font-size: 16px; }
.dialog-close { display: inline-flex; align-items: center; gap: 10px; padding: 6px 12px; border: 1px solid #dadce0; border-radius: 6px; background: white; color: #3c4043; font-size: 13px; cursor: pointer; }
.dialog-close span { font-size: 20px; line-height: 1; }
.dialog-image-container { padding: 20px; overflow: auto; }
.dialog-image { display: block; width: 100%; height: auto; min-width: 850px; }
body:has(.figure-dialog[open]) { overflow: hidden; }
@media (max-width: 960px) {
  .table-scroll-hint { display: block; margin: 0 0 10px; color: #5f6368; font-size: 12px; }
  .table-scroll-hint span { margin-left: 5px; }
}
@media (max-width: 640px) {
  body { margin: 24px auto; padding: 0 15px; }
  .hero { margin-bottom: 30px; }
  h1 { font-size: 28px; line-height: 1.4; margin-bottom: 20px; }
  .authors { gap: 4px 16px; font-size: 15px; }
  .author-notes { font-size: 12px; gap: 4px 12px; margin-bottom: 20px; }
  .affiliation { font-size: 13px; }
  .venue { font-size: 21px; margin-bottom: 20px; }
  .resource-links { gap: 10px; }
  .resource-button { padding: 9px 14px; font-size: 14px; }
  .soon { font-size: 12px; }
  .abstract-section, .content-section, .videos-section { padding: 20px; margin-bottom: 20px; border-radius: 24px; }
  h2 { font-size: 22px; line-height: 1.4; }
  .section-heading { margin-bottom: 20px; }
  .abstract-text, .paper-figure figcaption { font-size: 14px; text-align: left; }
  .figure-image { padding: 7px; border-radius: 18px; }
  .figure-image img { border-radius: 11px; }
  .enlarge-label { display: none; }
  .relationship-figure, .qualitative-figure { margin-top: 25px; }
  .table-scroll { padding: 8px; border-radius: 18px; }
  .video-grid { grid-template-columns: 1fr; gap: 16px; }
  .video-card { border-radius: 18px; }
  .video-card video { border-radius: 10px; }
  .video-group-heading > span { font-size: 12px; }
  .video-description { font-size: 13px; }
  .figure-dialog { width: calc(100% - 20px); max-height: calc(100dvh - 20px); }
  .dialog-toolbar, .dialog-image-container { padding: 12px; }
  .site-footer { font-size: 12px; }
}
@media (max-width: 360px) {
  body { padding: 0 12px; }
  h1 { font-size: 26px; }
  .abstract-section, .content-section, .videos-section { padding: 16px; }
  .resource-button { padding: 8px 11px; }
  .authors { column-gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
}