html, body {
  margin: 0;
  height: 100%;
  background: #fff;
  overflow: hidden;
  user-select: none;
  font-family: 'Smiley Sans Chinese', 'Dosis', sans-serif;
}
html {
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
}
html::-webkit-scrollbar {
  display: none;
}
body {
  overflow: visible;
}
:root {
  --layer-offset: 1px;
}
.stage {
  --pager-strip-base-height: calc(clamp(28px, 8vh, 80px) + min(clamp(0px, calc((800px - 100vw) * 0.1), 44px), 5vh));
  --pager-strip-height: calc(var(--pager-strip-base-height) + env(safe-area-inset-bottom, 0px));
  --nav-size: clamp(35px, 3vw, 40px);
  --chevron-size: clamp(10px, 1vw, 12px);
  position: relative;
  width: 100%;
  height: var(--scroll-content-height, 100%);
}
.viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.track {
  display: flex;
  height: 100%;
  will-change: transform;
}
.track.animate {
  transition: transform 1.44s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.page {
  position: relative;
  flex: 0 0 100vw;
  width: 100vw;
  height: 100%;
}
.frame {
  position: absolute;
  left: 50%;
  top: var(--frame-center-y, 50%);
  width: var(--frame-width, 40vw);
  aspect-ratio: 3 / 2;
  transform: translate(-50%, -50%);
  transition: opacity 1.44s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.frame.fade {
  opacity: 0;
  pointer-events: none;
}
.click-hint {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 32px;
  color: #111;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0.7;
  transition: transform 2.16s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.click-hint svg {
  display: block;
  width: 24px;
  height: 28px;
}
.layer {
  position: absolute;
  inset: 0;
  background: transparent;
  overflow: hidden;
  cursor: pointer;
  will-change: transform;
  transition: transform 2.16s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.layer.placeholder {
  background: #000;
}
.layer img {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.layer.back img {
  filter: invert(1);
}
.layer.front {
  z-index: 2;
  opacity: 0.5;
  transform: translate(var(--layer-offset), calc(-1 * var(--layer-offset)));
}
.layer.back {
  z-index: 1;
  opacity: 1;
  transform: translate(calc(-1 * var(--layer-offset)), var(--layer-offset));
}
.page.open .front {
  transform: translate(calc(var(--open-x) + var(--layer-offset)), calc(-1 * var(--layer-offset)));
}
.page.open .back {
  transform: translate(calc(-1 * var(--open-x) - var(--layer-offset)), var(--layer-offset));
}
.page.open[data-open-axis="vertical"] .front {
  transform: translate(var(--layer-offset), calc(-1 * var(--open-y) - var(--layer-offset)));
}
.page.open[data-open-axis="vertical"] .back {
  transform: translate(calc(-1 * var(--layer-offset)), calc(var(--open-y) + var(--layer-offset)));
}
.page.open[data-open-axis="vertical"] .click-hint {
  transform: translate(-50%, var(--hint-y));
}
.portfolio-link {
  --nav-size: var(--portfolio-arrow-size, clamp(35px, 3vw, 40px));
  --chevron-size: var(--portfolio-chevron-size, clamp(10px, 1vw, 12px));
  position: absolute;
  top: var(--portfolio-top, 100px);
  left: var(--portfolio-left, calc(clamp(40px, 11vw, 150px) - 10px));
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: var(--nav-size);
  color: #282828;
  font: clamp(12px, 1vw, 14px)/1.4 'Smiley Sans Chinese', 'Dosis', sans-serif;
  text-decoration: none;
  z-index: 20;
  transition: opacity 0.7s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.return-arrow {
  width: var(--nav-size);
  height: var(--nav-size);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.chevron-icon {
  box-sizing: border-box;
  width: var(--chevron-size);
  height: var(--chevron-size);
  border-left: 2px solid #282828;
  border-bottom: 2px solid #282828;
  transform: rotate(45deg);
  transition: border-color 0.3s ease;
}
.arrow.next .chevron-icon {
  transform: rotate(225deg);
}
.portfolio-link:hover {
  opacity: 0.55;
}
.arrow {
  position: absolute;
  top: var(--frame-center-y, 50%);
  transform: translateY(-50%);
  width: var(--nav-size);
  height: var(--nav-size);
  padding: 0;
  border: 0;
  background: transparent;
  color: #111;
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 20;
  opacity: 1;
  visibility: visible;
  transition:
    opacity 1.44s cubic-bezier(0.22, 0.75, 0.2, 1),
    transform 2.16s cubic-bezier(0.22, 0.75, 0.2, 1),
    visibility 0s linear 0s;
}
.arrow.prev {
  left: 4vw;
}
.arrow.next {
  right: 4vw;
}
.stage.controls-below {
  --pager-strip-height: calc(var(--pager-strip-base-height) / 2 + env(safe-area-inset-bottom, 0px));
}
.stage.controls-below .arrow {
  position: fixed;
  top: calc(100% - var(--pager-strip-height) / 2);
  z-index: 40;
}
.stage.controls-below .arrow.prev {
  left: var(--controls-inset);
}
.stage.controls-below .arrow.next {
  right: var(--controls-inset);
}
.arrow:not(.is-hidden):hover .chevron-icon {
  border-color: #666;
}
.arrow.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  cursor: default;
  transition:
    opacity 1.44s cubic-bezier(0.22, 0.75, 0.2, 1),
    visibility 0s linear 1.44s;
}
.pager-strip {
  --dot-size: clamp(5.5px, 0.5vw, 6px);
  --dot-hover-size: clamp(12px, 1.2vw, 14px);
  --dot-padding: clamp(3.5px, 0.333333vw, 4px);
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--pager-strip-height);
  max-height: 100%;
  background: rgba(255, 255, 255, 0.95);
  display: grid;
  place-items: center;
  z-index: 30;
}
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  height: 18px;
  max-width: calc(100% - 32px);
}
.stage.controls-below .pager {
  max-width: calc(100% - 2 * (var(--controls-inset) + var(--nav-size) + 8px));
}
.stage.controls-below .dot {
  width: calc(var(--dot-size) + 2 * var(--dot-padding));
  padding: 0;
  flex: 1 1 auto;
}
.dot {
  appearance: none;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 18px;
  padding: 0 var(--dot-padding);
  border: 0;
  background: transparent;
  box-sizing: border-box;
  flex: 0 1 auto;
  min-width: 0;
  cursor: pointer;
}
.dot::before {
  content: "";
  width: var(--dot-size);
  height: var(--dot-size);
  background: #000;
  border: 1px solid #000;
  box-sizing: border-box;
  flex: 0 0 auto;
  transition:
    width 1.44s cubic-bezier(0.22, 0.75, 0.2, 1),
    height 1.44s cubic-bezier(0.22, 0.75, 0.2, 1),
    background-color 1.44s cubic-bezier(0.22, 0.75, 0.2, 1),
    border-color 1.44s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.dot:not(.current):hover::before {
  width: var(--dot-hover-size);
  height: var(--dot-hover-size);
  background: #8a8a8a;
  border-color: #8a8a8a;
  transition:
    width 0.7s cubic-bezier(0.22, 0.75, 0.2, 1),
    height 0.7s cubic-bezier(0.22, 0.75, 0.2, 1),
    background-color 0.7s cubic-bezier(0.22, 0.75, 0.2, 1),
    border-color 0.7s cubic-bezier(0.22, 0.75, 0.2, 1);
}
.dot.current {
  cursor: default;
}
.dot.current::before {
  background: transparent;
}