.catalog-preview{
  position:fixed; z-index:9999; width:360px; max-height:60vh;
  background:#fff; border:1px solid rgba(0,0,0,.12);
  box-shadow:0 8px 30px rgba(0,0,0,.15); border-radius:12px;
  overflow:hidden; pointer-events:auto;
}
.catalog-preview__header{
  padding:10px 12px; font-size:14px; font-weight:600;
  border-bottom:1px solid rgba(0,0,0,.06)
}
.catalog-preview__body{ width:100%; height:220px; position:relative }
.catalog-preview__iframe{
  width:100%; height:100%; border:0; transform:scale(.85);
  transform-origin:0 0;
}
.catalog-preview__overlay{
  position:absolute; inset:0; display:flex; align-items:end; justify-content:flex-end;
  padding:8px; cursor:pointer; background:transparent;
}
.catalog-preview__tip{
  font-size:12px; background:rgba(0,0,0,.55); color:#fff;
  padding:4px 8px; border-radius:8px;
}
.catalog-preview--hidden{ display:none }