@font-face {
  font-family: "Alimama FangYuanTi";
  src: url("assets/AlimamaFangYuanTiVF.ttf") format("truetype-variations");
  font-style: normal;
  font-weight: 200 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  font-family: "Alimama FangYuanTi", "Microsoft YaHei", sans-serif;
  --paper: #f1f1f1;
  --ink: #050505;
  --menu-line: #bdbdbd;
  --detail-width: min(89.8vw, 160vh);
  --detail-left: max(5.1vw, calc(50vw - 80vh));
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

.report {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  isolation: isolate;
  overflow: hidden;
  background: var(--paper);
}

.masthead {
  position: absolute;
  z-index: 20;
  top: clamp(1rem, 5.04vh, 3.78rem);
  left: var(--detail-left);
  width: min(52rem, 89vw);
  pointer-events: none;
}

.masthead h1 {
  position: relative;
  width: 100%;
  height: clamp(7rem, 20vh, 14rem);
  margin: 0;
  font-size: clamp(2.1rem, min(4.4vw, 8vh), 5.4rem);
  font-weight: 300;
  font-variation-settings: "wght" 300, "BEVL" 100;
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.report-title-part {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  transform-origin: left top;
  white-space: nowrap;
  transition: opacity 720ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.report-title-years {
  opacity: 1;
}

.report-title-name {
  transform: translateY(1.18em);
  opacity: 1;
}

.showcase,
.gallery,
.blank-panel {
  position: absolute;
  inset: 0;
}

.gallery {
  overflow-x: auto;
  overflow-y: hidden;
  cursor: grab;
  overscroll-behavior: contain;
  scrollbar-width: none;
  outline: none;
}

.gallery::-webkit-scrollbar {
  display: none;
}

.gallery:focus-visible {
  box-shadow: inset 0 0 0 3px #050505;
}

.gallery.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.track {
  display: flex;
  align-items: center;
  width: max-content;
  min-width: 100%;
  height: 100%;
  padding: 3.8rem max(8vw, 8rem) 2.2rem clamp(6.5rem, 5.5vw, 7.2rem);
}

.project-card {
  position: relative;
  z-index: var(--layer);
  flex: 0 0 auto;
  width: clamp(16rem, 19.2vw, 23rem);
  aspect-ratio: 1541 / 2086;
  margin-left: clamp(-5rem, -4.1vw, -3rem);
  overflow: hidden;
  border-radius: clamp(1.15rem, 1.7vw, 2rem);
  background: #fff;
  box-shadow: 0 1rem 2.7rem rgba(0, 0, 0, 0.06);
  transform: translateY(var(--lift)) rotate(var(--angle));
  transform-origin: 50% 80%;
  transition:
    transform 420ms cubic-bezier(0.2, 0.75, 0.2, 1),
    box-shadow 420ms ease,
    filter 420ms ease,
    opacity 160ms ease;
  will-change: transform;
}

.project-card:first-child {
  margin-left: 0;
}

.project-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
}

.project-card--interactive {
  appearance: none;
  padding: 0;
  border: 0;
  text-align: left;
  cursor: pointer;
}

.project-card--interactive:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 0.45rem;
}

.project-card.is-detail-source {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: none;
}

.project-card:hover,
.project-card:focus-visible {
  z-index: 30;
  filter: saturate(1.03);
  transform: translateY(-0.65rem) rotate(0deg) scale(1.035);
  box-shadow: 0 2rem 4.5rem rgba(0, 0, 0, 0.18);
}

.project-card.is-detail-returning {
  transform: translateY(-0.65rem) rotate(0deg) scale(1.035);
  transition: none;
}

.showcase {
  transition: opacity 720ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.has-open-detail .showcase,
body.has-open-detail .scroll-hint {
  opacity: 0;
  pointer-events: none;
}

body.has-open-detail .report-title-name {
  opacity: 0;
}

.detail-layer {
  position: absolute;
  z-index: 80;
  inset: 0;
  visibility: hidden;
  cursor: zoom-out;
  pointer-events: none;
}

.detail-layer.is-preparing,
.detail-layer.is-active {
  visibility: visible;
}

.detail-layer.is-active {
  pointer-events: auto;
}

.detail-panel {
  position: absolute;
  top: 52.2%;
  left: 50%;
  width: var(--detail-width);
  aspect-ratio: 7129 / 3104;
  overflow: hidden;
  border-radius: clamp(1.2rem, 1.7vw, 2rem);
  background: var(--detail-color, #000);
  box-shadow: 0 1.8rem 5rem rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: translate(-50%, -50%);
  cursor: default;
  outline: none;
}

.detail-layer.is-active .detail-panel {
  opacity: 1;
}

.detail-art {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  user-select: none;
  pointer-events: none;
}

.detail-transition-card {
  position: fixed;
  z-index: 120;
  overflow: hidden;
  margin: 0;
  border: 0;
  background: var(--detail-color, #000);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.16);
  transform-style: preserve-3d;
  pointer-events: none;
  will-change: left, top, width, height, transform, border-radius;
}

.detail-transition-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  backface-visibility: hidden;
}

body.has-open-detail .scroll-hint {
  opacity: 0;
}

.blank-panel {
  display: none;
  background: var(--paper);
}

.blank-panel.is-visible {
  display: block;
}

.category-nav {
  position: absolute;
  z-index: 50;
  left: var(--detail-left);
  bottom: clamp(1.2rem, 4.4vh, 3.25rem);
  min-width: clamp(15rem, 16.5vw, 20rem);
}

.category-trigger {
  display: flex;
  align-items: center;
  gap: 0.25em;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: clamp(1.9rem, min(3.1vw, 6vh), 3.9rem);
  font-weight: 360;
  font-variation-settings: "wght" 360, "BEVL" 100;
  line-height: 1;
  letter-spacing: -0.045em;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transform: scale(0.97);
  transform-origin: left bottom;
  transition:
    transform 720ms cubic-bezier(0.22, 0.61, 0.36, 1),
    opacity 720ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.has-open-detail .category-nav {
  pointer-events: none;
}

.category-trigger:disabled {
  color: var(--ink);
  opacity: 1;
  cursor: default;
}

.category-trigger:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 0.45rem;
  border-radius: 0.2rem;
}

.category-menu {
  position: absolute;
  bottom: calc(100% + 1.35rem);
  left: 0;
  display: grid;
  width: clamp(17rem, 16.2vw, 20rem);
  padding: 1.35rem 1.45rem 1.2rem;
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1rem 3.3rem rgba(0, 0, 0, 0.07);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem) scale(0.98);
  transform-origin: left bottom;
  transition:
    opacity 180ms ease,
    transform 220ms ease,
    visibility 180ms;
}

.category-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.category-option {
  position: relative;
  padding: 0.58rem 0 0.7rem;
  border: 0;
  border-bottom: 1px dashed var(--menu-line);
  background: transparent;
  color: #696969;
  font-size: clamp(1.55rem, 2vw, 2.2rem);
  font-weight: 300;
  font-variation-settings: "wght" 300, "BEVL" 100;
  line-height: 1.1;
  letter-spacing: -0.04em;
  text-align: left;
  cursor: pointer;
  transition: color 160ms ease, transform 160ms ease;
}

.category-option:last-child {
  border-bottom: 0;
}

.category-option::before {
  content: "-";
  margin-right: 0.15em;
}

.category-option:hover,
.category-option:focus-visible {
  color: var(--ink);
  transform: translateX(0.28rem);
  outline: 0;
}

.scroll-hint {
  position: absolute;
  z-index: 40;
  right: clamp(1.6rem, 3vw, 3.6rem);
  bottom: clamp(1.8rem, 3.7vh, 2.7rem);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0;
  color: #747474;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  transition: opacity 720ms cubic-bezier(0.22, 0.61, 0.36, 1);
  pointer-events: none;
}

.scroll-hint i {
  position: relative;
  display: block;
  width: 3.5rem;
  height: 1px;
  background: currentColor;
}

.scroll-hint i::after {
  content: "";
  position: absolute;
  top: -0.18rem;
  right: 0;
  width: 0.35rem;
  height: 0.35rem;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

.scroll-hint.is-hidden {
  opacity: 0;
}

@media (max-width: 860px) {
  :root {
    --detail-width: min(calc(100vw - 2rem), 160vh);
    --detail-left: max(1rem, calc(50vw - 80vh));
  }

  .report {
    min-height: 0;
  }

  .masthead {
    top: 1.05rem;
    width: calc(100vw - 2.7rem);
  }

  .masthead h1 {
    font-size: clamp(2rem, min(9vw, 8.2vh), 4.1rem);
    line-height: 1.02;
  }

  .track {
    padding: 7.7rem 6rem 5rem 4rem;
  }

  .project-card {
    width: min(61vw, 20rem);
    margin-left: -2.85rem;
    border-radius: 1.4rem;
    transform: translateY(calc(var(--lift) * 0.44)) rotate(var(--angle));
  }

  .project-card:hover,
  .project-card:focus-visible {
    transform: translateY(-0.45rem) rotate(0deg) scale(1.02);
  }

  .project-card.is-detail-returning {
    transform: translateY(-0.45rem) rotate(0deg) scale(1.02);
  }

  .category-nav {
    bottom: 1.6rem;
    min-width: 13rem;
  }

  .category-trigger {
    font-size: clamp(1.75rem, min(8vw, 7vh), 2.9rem);
  }

  .category-menu {
    width: 14.5rem;
  }

  .category-option {
    font-size: 1.55rem;
  }

  .scroll-hint {
    right: 1.2rem;
    bottom: 1.4rem;
  }

  .detail-panel {
    border-radius: 1.15rem;
  }
}

@media (max-height: 640px) and (min-width: 861px) {
  .masthead {
    top: 0.875rem;
  }

  .track {
    padding-top: 2.8rem;
    padding-bottom: 2.8rem;
  }

  .project-card {
    width: min(18vw, 18.5rem);
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}