/* V62: facing-page transitions in landscape are an indivisible spread. */
html.gb61-phone :is(.app:fullscreen,.app.focus-mode) .book[data-layout="spread"] .flip-layer,
html.gb61-phone .book[data-layout="spread"] .flip-layer {
  display:none!important;
}
/* Avoid two independent reveal animations: apply one transition to the spread. */
html.gb61-phone .book[data-layout="spread"].revealing .page {animation:none!important;}
html.gb61-phone .book[data-layout="spread"].revealing .page img {filter:none!important;}