/* ------------
 * mainview
 */
#mainview {
  max-width: 1500px;
  margin: 0 auto;
}
.mainview_item {
  aspect-ratio: 16 / 9;
}

/* link */
.mainview_link {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  color: #fff;
  overflow: hidden;
}
.mainview_link:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.mainview_link video {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
}