/* Decorative backgrounds are limited to the three requested areas. */
#papers,.collab-process-banner,#activity .news-column,#students{position:relative;isolation:isolate}
#papers::before,.collab-process-banner::before,#activity .news-column::before,#students::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:var(--section-art,none);background-repeat:no-repeat;background-position:right center;background-size:auto 100%;opacity:.14;mask-image:linear-gradient(90deg,transparent 0%,#000 28%,#000 90%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 28%,#000 90%,transparent)}
#papers::before{background-position:right top;background-size:auto min(100%,650px)}
#activity .news-column::before,#students::before{background-size:auto 85%;background-position:right top;opacity:.12}
@media(max-width:760px){#papers::before,.collab-process-banner::before,#activity .news-column::before,#students::before{background-size:100% auto;background-position:center top;opacity:.08;mask-image:linear-gradient(0deg,transparent,#000 20%,#000 85%,transparent);-webkit-mask-image:linear-gradient(0deg,transparent,#000 20%,#000 85%,transparent)}}
/* The incoming vision image retains its existing uncropped aspect ratio. */
#vision-detail .feature-banner__visual img{--vision-blur:0px;--vision-light:1;filter:blur(var(--vision-blur)) brightness(var(--vision-light))}
@media(prefers-reduced-motion:reduce){#vision-detail .feature-banner__visual img{filter:none}}

#vision-detail{display:block}#vision-detail::after{display:none}#vision-detail .feature-banner__visual{position:relative;inset:auto;width:100%;height:auto;aspect-ratio:1672/941;opacity:1;transform:none;transition:none}#vision-detail .feature-banner__visual img{height:100%;object-fit:contain;object-position:center}#vision-detail .feature-banner__content{width:100%;max-width:none;padding:40px clamp(24px,6vw,90px)}#vision-detail .feature-banner__content p:not(.section-label){max-width:900px}

#papers{--section-art:url("/assets/research-trip-departure-transparent-v1.webp")}
.collab-process-banner{--section-art:url("/assets/collaboration-presentation-ohzeki-saki-v1.webp")}
#activity .news-column{--section-art:url("/assets/nana-activity-calendar-v1.webp")}

#students{--section-art:url("/assets/open-campus-book-transparent-v2.webp")}

/* Preserve the visitor at the left edge of the revised scene. */
#students::before{background-size:100% auto;background-position:center top;mask-image:none;-webkit-mask-image:none;opacity:.16}
@media(max-width:760px){#students::before{opacity:.12}}