/* Shared homepage SECTION 04: one self-contained, responsive product viewer. */
.structure-3d .structure-header { margin-bottom: 28px; }
.structure-3d .structure-desc { max-width: 720px; margin-bottom: 0; }
.structure-3d-viewer {
  width: 100%;
  container-type: inline-size;
  border: 1px solid rgba(38, 48, 58, .12);
  border-radius: 16px;
  background: #f0f1f2;
  box-shadow: 0 20px 60px rgba(31, 43, 53, .07);
}
.structure-3d-viewer iframe {
  display: block;
  width: 100%;
  height: 660px;
  border: 0;
  background: #f0f1f2;
  border-radius: inherit;
}
.structure-3d-fallback { margin-top: 16px; font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
.structure-3d .structure-header > * { min-width: 0; }
.structure-3d .structure-title { overflow-wrap: anywhere; hyphens: auto; }
/* Reserve space at the viewer's own breakpoint until content height arrives. */
@container (max-width: 900px) {
  .structure-3d-viewer iframe { height: 1060px; }
}
@media (max-width: 700px) {
  .structure-3d .structure-header { margin-bottom: 20px; }
  .structure-3d-viewer { border-radius: 12px; }
  .structure-3d-viewer iframe { height: 1060px; }
}