/* zuo3d.cn filing footer. No tracking, third-party scripts or account data. */
:root { --zuo3d-legal-height: calc(30px + env(safe-area-inset-bottom, 0px)); }
#zuo3d-legal-footer {
  display: block;
  position: relative;
  z-index: 200;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 11px 14px calc(11px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid #dfe4e2;
  background: #f5f7f4;
  color: #52665c;
  text-align: center;
  font: 12px/1.65 "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  letter-spacing: 0;
  clear: both;
}
#zuo3d-legal-footer a {
  display: inline-block;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}
#zuo3d-legal-footer a:hover { text-decoration: underline; }
#zuo3d-legal-footer a:focus-visible {
  outline: 2px solid #227963;
  outline-offset: 4px;
  border-radius: 2px;
}
/* This course intentionally fills the viewport. Reserve a separate footer row. */
html[data-zuo3d-page="1"] body { overflow: hidden; }
html[data-zuo3d-page="1"] #root {
  height: calc(100vh - var(--zuo3d-legal-height));
  height: calc(100dvh - var(--zuo3d-legal-height));
}
html[data-zuo3d-page="1"] .gallery-app,
html[data-zuo3d-page="1"] .gallery-app.is-mobile {
  height: calc(100vh - var(--zuo3d-legal-height));
  height: calc(100dvh - var(--zuo3d-legal-height));
  min-height: 0;
}
html[data-zuo3d-page="1"] .model-stage.focused,
html[data-zuo3d-page="1"] .is-mobile .model-stage.focused {
  height: calc(100vh - var(--zuo3d-legal-height));
  height: calc(100dvh - var(--zuo3d-legal-height));
  max-height: calc(100dvh - var(--zuo3d-legal-height));
}
html[data-zuo3d-page="1"] #zuo3d-legal-footer {
  position: fixed;
  inset: auto 0 0;
  height: var(--zuo3d-legal-height);
  min-height: var(--zuo3d-legal-height);
  padding: 4px 10px calc(4px + env(safe-area-inset-bottom, 0px));
}
html[data-zuo3d-page="5"] #zuo3d-legal-footer {
  background: #0e1c25;
  color: #bfd0d3;
  border-top-color: #344a53;
}
@media print {
  #zuo3d-legal-footer { position: static !important; color: #222; background: white; }
}