body {
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans JP', 'Noto Sans KR', 'Noto Sans SC',
    'Noto Sans TC', 'Noto Sans', sans-serif;
}
#wrapper {
  background-color: #fff;
  img {
    vertical-align: middle;
  }
}
.items {
  width: 100%;
  height: 100%;
  overflow: hidden;
  text-align: center;
  img {
    width: auto;
    height: 100svh;
  }
  &.double {
    position: relative;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* img {
      width: 196vw;
    } */
  }
  &.quadruple {
    position: relative;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* img {
      width: 396.5vw;
    } */
  }
}
.scroll-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 14px;
  font-weight: bold;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
  background-color: rgba(0, 0, 0, 0.65);
  border-radius: 999px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.scroll-hint.is-visible {
  opacity: 1;
}
.scroll-hint .hand {
  display: inline-block;
  width: 24px;
  height: 24px;
  animation: scroll-hint-swipe 1.6s ease-in-out infinite;
}
@keyframes scroll-hint-swipe {
  0% {
    transform: translateX(10px);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  80% {
    transform: translateX(-10px);
    opacity: 1;
  }
  100% {
    transform: translateX(-10px);
    opacity: 0;
  }
}