:root {
  --glow: #7dd3fc;
  --glow-core: #fff;
  --bg: #000;
  --page-padding: clamp(2px, 0.45vw, 7px);
  --title-overflow-safe-x: 7vw;
  --title-overflow-safe-y: 2vh;
}

* {
  box-sizing: border-box;
}

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

body {
  display: grid;
  place-items: center;
  padding: calc(var(--page-padding) + var(--title-overflow-safe-y)) calc(var(--page-padding) + var(--title-overflow-safe-x)) var(--page-padding);
}

.stage {
  position: relative;
  width: min(
    calc(100vw - (var(--page-padding) + var(--title-overflow-safe-x)) * 2),
    calc((100vh - var(--page-padding) * 2 - var(--title-overflow-safe-y)) * 4 / 3)
  );
  height: min(
    calc(100vh - var(--page-padding) * 2 - var(--title-overflow-safe-y)),
    calc((100vw - (var(--page-padding) + var(--title-overflow-safe-x)) * 2) * 3 / 4)
  );
  background: #000;
  overflow: visible;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

body:not(.is-app-ready) .stage {
  opacity: 0;
  pointer-events: none;
}

body.is-app-ready:not(.is-started) .stage {
  opacity: 1;
  pointer-events: none;
}

.preload-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  align-content: center;
  justify-items: center;
  gap: 14px;
  background: #000;
  color: rgba(255, 255, 255, 0.88);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  letter-spacing: 0;
  transition:
    opacity 460ms ease,
    visibility 460ms ease;
}

.preload-screen.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preload-panel {
  display: grid;
  justify-items: center;
  gap: 11px;
  width: min(180px, calc(100vw - 16px));
  margin-top: -2px;
}

.preload-progress {
  display: block;
  width: min(142px, 34vw);
  height: auto;
  margin-top: 0;
  image-rendering: auto;
}

.preload-word {
  display: block;
  width: min(112px, 27vw);
  height: auto;
  margin-top: 0;
  image-rendering: auto;
  cursor: pointer;
  transform-origin: center center;
  transform: scale(1);
}

.preload-word.is-ready {
  animation: preload-word-breathe 1.8s ease-in-out infinite;
}

@keyframes preload-word-breathe {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}

.stage::after {
  content: "";
  position: absolute;
  inset: -4px;
  z-index: 6;
  pointer-events: none;
  box-shadow: inset 0 0 0 14px #000;
  background:
    linear-gradient(to right, #000 0, rgba(0, 0, 0, 0.82) 7%, rgba(0, 0, 0, 0.42) 18%, rgba(0, 0, 0, 0.08) 34%, rgba(0, 0, 0, 0) 43%, rgba(0, 0, 0, 0) 57%, rgba(0, 0, 0, 0.08) 66%, rgba(0, 0, 0, 0.42) 82%, rgba(0, 0, 0, 0.82) 93%, #000 100%),
    linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.98) 7%, rgba(0, 0, 0, 0.34) 20%, rgba(0, 0, 0, 0) 34%, rgba(0, 0, 0, 0) 66%, rgba(0, 0, 0, 0.34) 80%, rgba(0, 0, 0, 0.98) 93%, #000 100%),
    radial-gradient(
      ellipse 120% 58% at center,
      rgba(0, 0, 0, 0) 46%,
      rgba(0, 0, 0, 0.18) 66%,
      rgba(0, 0, 0, 0.64) 88%,
      #000 100%
    );
}

.noise-overlay {
  position: absolute;
  top: calc(-1 * var(--title-overflow-safe-y));
  left: calc(-1 * var(--title-overflow-safe-x));
  width: calc(100% + var(--title-overflow-safe-x) * 2);
  height: calc(100% + var(--title-overflow-safe-y));
  z-index: 30;
  pointer-events: none;
  image-rendering: pixelated;
  mix-blend-mode: overlay;
  opacity: 0.82;
}

video,
.hotspots,
.hover-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

video {
  display: block;
  object-fit: contain;
  opacity: 0;
  transition: opacity 80ms linear;
  z-index: 0;
}

video.is-visible {
  opacity: 1;
}

.stage.is-instant-video video {
  transition: none;
}

#normalVideo {
  opacity: 1;
}

#openVideo {
  z-index: 1;
}

#closeVideo {
  z-index: 2;
}

#lightOffStartVideo,
#lightOffLoopVideo,
#lightOnVideo {
  z-index: 2;
}

.hotspots {
  z-index: 3;
  pointer-events: auto;
}

.hotspots svg {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: auto;
}

.hotspots [id="BG"],
.hotspots rect:not([id]) {
  display: none;
}

.hotspots .interactive-obj {
  fill-opacity: 0.001;
  stroke: transparent;
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
  paint-order: stroke fill;
  vector-effect: non-scaling-stroke;
  pointer-events: all;
  cursor: pointer;
  transition: all 0.3s ease;
}

.hotspots .interactive-obj:hover,
.hotspots .interactive-obj:focus-visible,
.hotspots .interactive-obj.is-active {
  outline: none;
}

.hotspots .range {
  fill: rgba(255, 255, 255, 0.001);
  stroke: transparent;
  pointer-events: auto;
  cursor: default;
}

.hotspots.is-hidden {
  display: none;
}

.hover-layer {
  z-index: 4;
  pointer-events: none;
  overflow: visible;
}

.cover-text-layer {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  --parallax-x: 0;
  --parallax-y: 0;
}

.cover-text-layer img {
  position: absolute;
  display: block;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
  transition:
    opacity 640ms ease,
    transform 760ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.cover-title-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.cover-text-layer.is-title-shaking .cover-title-svg {
  animation: title-corner-shake 420ms cubic-bezier(0.2, 0.9, 0.25, 1) 760ms both;
  transform-origin: 76% 12%;
}

.cover-parallax-title,
.cover-parallax-collection {
  position: absolute;
  will-change: transform;
}

.cover-parallax-title {
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  overflow: visible;
  transform: translate3d(calc(var(--parallax-x) * 28px), calc(var(--parallax-y) * 16px), 0);
}

.cover-text-layer.is-scene-active .cover-parallax-title {
  transform: translate3d(calc(var(--parallax-x) * 12px), calc(var(--parallax-y) * 8px), 0);
}

.cover-title-layout {
  transform: translate(-72px, 24px);
  transform-origin: 0 0;
  transition: transform 720ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0ms;
  will-change: transform;
}

.cover-text-layer.is-scene-active .cover-title-layout {
  transform: translate(880px, 6px) rotate(24deg) scale(0.47);
  transition-delay: 380ms;
}

.cover-title {
  overflow: visible;
  transform-box: fill-box;
  transform-origin: 50% 58%;
  animation: title-arc-drift 8.2s ease-in-out infinite;
}

.cover-click {
  top: 50%;
  left: 8%;
  width: 30%;
  transition-delay: 0ms;
}

.cover-text-layer.is-scene-active .cover-click {
  opacity: 0;
  transform: translate3d(-125%, 0, 0) rotate(-8deg);
  transition-delay: 380ms;
}

.cover-arrow {
  top: 48%;
  left: 39%;
  width: 5.8%;
  transition-delay: 0ms;
}

.cover-text-layer.is-scene-active .cover-arrow {
  opacity: 0;
  transform: translate3d(-630%, 0, 0) rotate(-12deg);
  transition-delay: 380ms;
}

.cover-parallax-collection {
  right: 15.2%;
  bottom: 50.1%;
  width: 43.6%;
  transform: translate3d(calc(var(--parallax-x) * -24px), calc(var(--parallax-y) * -14px), 0);
  transition:
    opacity 640ms ease,
    transform 760ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0ms;
}

.cover-text-layer.is-scene-active .cover-parallax-collection {
  opacity: 0;
  transform: translate3d(42vw, 38vh, 0) rotate(10deg);
  transition-delay: 380ms;
}

.cover-collection {
  position: static;
  display: block;
  width: 100%;
  transform-origin: 52% 48%;
  animation: collection-arc-drift 7.6s ease-in-out infinite;
}

.cover-if {
  left: 0%;
  top: 0%;
  width: 4.6%;
}

.cat-like-layer {
  position: absolute;
  inset: 0;
  z-index: 28;
  pointer-events: none;
  overflow: visible;
}

.item-info-panel {
  position: fixed;
  inset: 0;
  z-index: 35;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 56px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: rgba(5, 10, 18, 0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition:
    opacity 220ms ease,
    background-color 260ms ease,
    backdrop-filter 260ms ease,
    visibility 220ms ease;
}

.item-info-panel.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  background: rgba(5, 10, 18, 0.58);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.item-info-card {
  position: relative;
  display: grid;
  gap: 13px;
  --paper-hole-gap: clamp(120px, 24vh, 190px);
  --paper-hole-x: 40px;
  --paper-hole-y: 14%;
  --paper-hole-size: 10px;
  width: min(660px, 100%);
  max-height: min(78vh, 760px);
  overflow: auto;
  padding: 42px 48px 42px 92px;
  color: #14120f;
  font-family: "Times New Roman", "Songti SC", "SimSun", serif;
  font-size: clamp(13px, 1.25vw, 18px);
  line-height: 1.62;
  letter-spacing: 0;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(255, 255, 242, 0.4), transparent 58%),
    radial-gradient(ellipse at 50% 0%, rgba(92, 66, 24, 0.08), transparent 36%),
    radial-gradient(ellipse at 50% 100%, rgba(92, 66, 24, 0.09), transparent 40%),
    linear-gradient(105deg, rgba(255, 252, 232, 0.96), rgba(235, 226, 197, 0.98));
  background-size: auto;
  border: 0;
  border-radius: 0;
  clip-path: polygon(
    0.6% 0.5%,
    18% 0.2%,
    37% 0.7%,
    61% 0.35%,
    82% 0.8%,
    99.1% 0.45%,
    98.8% 22%,
    99.2% 47%,
    98.7% 73%,
    99% 99%,
    76% 98.6%,
    52% 99.1%,
    29% 98.7%,
    0.8% 99%,
    1.1% 76%,
    0.55% 52%,
    1% 27%
  );
  box-shadow:
    0 26px 70px rgba(0, 0, 0, 0.46),
    0 0 0 1px rgba(34, 28, 16, 0.12) inset,
    0 2px 0 rgba(255, 255, 255, 0.36) inset;
  -webkit-mask-image:
    radial-gradient(circle at var(--paper-hole-x) var(--paper-hole-y), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px)),
    radial-gradient(circle at var(--paper-hole-x) calc(var(--paper-hole-y) + var(--paper-hole-gap)), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px)),
    radial-gradient(circle at var(--paper-hole-x) calc(var(--paper-hole-y) + var(--paper-hole-gap) + var(--paper-hole-gap)), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px));
  -webkit-mask-composite: source-in, source-in;
  mask-image:
    radial-gradient(circle at var(--paper-hole-x) var(--paper-hole-y), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px)),
    radial-gradient(circle at var(--paper-hole-x) calc(var(--paper-hole-y) + var(--paper-hole-gap)), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px)),
    radial-gradient(circle at var(--paper-hole-x) calc(var(--paper-hole-y) + var(--paper-hole-gap) + var(--paper-hole-gap)), transparent 0 var(--paper-hole-size), #000 calc(var(--paper-hole-size) + 1px));
  mask-composite: intersect;
}

.item-info-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent 18%, transparent 78%, rgba(69, 50, 20, 0.04)),
    linear-gradient(to right, rgba(55, 39, 15, 0.1), transparent 7%, transparent 93%, rgba(55, 39, 15, 0.1)),
    linear-gradient(to bottom, rgba(55, 39, 15, 0.09), transparent 7%, transparent 93%, rgba(55, 39, 15, 0.11)),
    radial-gradient(ellipse at 50% 0%, rgba(86, 63, 25, 0.08), transparent 42%),
    radial-gradient(ellipse at 50% 100%, rgba(86, 63, 25, 0.08), transparent 48%);
  mix-blend-mode: multiply;
}

.item-info-card::after {
  content: "";
  position: absolute;
  top: 14%;
  left: 30px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: transparent;
  pointer-events: none;
}

.item-info-close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(20, 18, 15, 0.08);
  color: rgba(20, 18, 15, 0.76);
  font: 18px/1 Arial, sans-serif;
  cursor: pointer;
}

.item-info-title {
  margin: 0;
  padding-right: 18px;
  color: #0b0906;
  font-size: 1.58em;
  line-height: 1.22;
  font-weight: 700;
}

.item-info-section {
  display: grid;
  gap: 4px;
}

.item-info-label {
  margin: 0;
  color: rgba(26, 22, 16, 0.62);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.72em;
  line-height: 1.2;
  font-weight: 700;
  text-transform: uppercase;
}

.item-info-text {
  margin: 0;
  white-space: pre-line;
}

.item-info-link {
  justify-self: start;
  color: #17130d;
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.86em;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cat-like-bubble {
  position: absolute;
  width: clamp(30px, 5.4%, 62px);
  aspect-ratio: 1;
  left: var(--bubble-x);
  top: var(--bubble-y);
  transform: translate(-50%, -50%) scale(0.2) rotate(var(--bubble-rotate));
  transform-origin: 50% 70%;
  opacity: 0;
  image-rendering: auto;
  filter:
    drop-shadow(0 5px 7px rgba(0, 0, 0, 0.2))
    drop-shadow(0 0 10px rgba(255, 255, 255, 0.28));
  animation: cat-like-pop 1120ms cubic-bezier(0.18, 0.82, 0.24, 1) forwards;
  will-change: transform, opacity;
}

@keyframes title-arc-drift {
  0%,
  100% {
    transform:
      translate3d(0, 0, 0)
      rotate(-0.85deg)
      scale(1);
  }
  30% {
    transform:
      translate3d(-1.2%, -1%, 0)
      rotate(0.65deg)
      scale(1.006);
  }
  66% {
    transform:
      translate3d(1%, 0.68%, 0)
      rotate(-0.32deg)
      scale(0.998);
  }
}

@keyframes collection-arc-drift {
  0%,
  100% {
    transform:
      translate3d(0, 0, 0)
      rotate(-1.1deg)
      scale(1);
  }
  35% {
    transform:
      translate3d(2.2%, -1.8%, 0)
      rotate(1.25deg)
      scale(1.012);
  }
  70% {
    transform:
      translate3d(-1.35%, 1.1%, 0)
      rotate(-0.55deg)
      scale(0.996);
  }
}

@keyframes title-corner-shake {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  18% {
    transform: translate3d(8px, -4px, 0) rotate(2.4deg);
  }
  34% {
    transform: translate3d(-9px, 4.5px, 0) rotate(-3deg);
  }
  50% {
    transform: translate3d(6px, 3.4px, 0) rotate(2deg);
  }
  66% {
    transform: translate3d(-3.8px, -2.4px, 0) rotate(-1.25deg);
  }
  82% {
    transform: translate3d(2px, 1.2px, 0) rotate(0.65deg);
  }
}

@keyframes cat-like-pop {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) translate3d(0, 12px, 0) scale(0.18) rotate(var(--bubble-rotate));
  }
  12% {
    opacity: 1;
    transform: translate(-50%, -50%) translate3d(0, 0, 0) scale(1.18) rotate(calc(var(--bubble-rotate) + 5deg));
  }
  22% {
    transform: translate(-50%, -50%) translate3d(-7px, -10px, 0) scale(0.94) rotate(calc(var(--bubble-rotate) - 7deg));
  }
  38% {
    opacity: 1;
    transform: translate(-50%, -50%) translate3d(8px, -34px, 0) scale(1.05) rotate(calc(var(--bubble-rotate) + 6deg));
  }
  58% {
    transform: translate(-50%, -50%) translate3d(-6px, -70px, 0) scale(0.96) rotate(calc(var(--bubble-rotate) - 4deg));
  }
  78% {
    opacity: 0.76;
    transform: translate(-50%, -50%) translate3d(7px, -108px, 0) scale(0.86) rotate(calc(var(--bubble-rotate) + 3deg));
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translate3d(-3px, -142px, 0) scale(0.58) rotate(calc(var(--bubble-rotate) - 2deg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .cover-title,
  .cover-collection,
  .cover-text-layer.is-title-shaking .cover-title-svg,
  .cat-like-bubble {
    animation: none;
  }
}

@media (max-width: 720px), (max-aspect-ratio: 1/1) {
      .item-info-panel {
        padding: clamp(14px, 4vw, 24px);
      }

      .item-info-card {
        --paper-hole-gap: clamp(96px, 22vh, 150px);
        --paper-hole-x: 32px;
        --paper-hole-size: 8.5px;
        width: min(92vw, 560px);
        max-height: min(72vh, 620px);
        padding: 34px 26px 34px 68px;
        font-size: clamp(12px, 3.2vw, 15px);
      }

      .item-info-card::after {
        left: 24px;
        width: 17px;
        height: 17px;
      }
}

.hover-layer path {
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}

.hover-layer .edge-glow-soft,
.hover-layer .edge-glow-hot {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.8;
  mix-blend-mode: screen;
  animation: glow-breathe 3.2s ease-in-out infinite;
}

.hover-layer .edge-glow-soft {
  stroke: rgba(255, 255, 255, 0.48);
  stroke-width: 5;
  filter:
    blur(2px)
    drop-shadow(0 0 8px rgba(255, 255, 255, 0.55))
    drop-shadow(0 0 16px rgba(125, 211, 252, 0.88))
    drop-shadow(0 0 26px rgba(125, 211, 252, 0.68));
}

.hover-layer .edge-glow-hot {
  stroke: rgba(255, 255, 255, 0.9);
  opacity: 0.75;
  stroke-width: 1;
  filter:
    drop-shadow(0 0 4px rgba(255, 255, 255, 0.75))
    drop-shadow(0 0 9px rgba(125, 211, 252, 0.85));
}

@keyframes glow-breathe {
  0%,
  100% {
    opacity: 0.68;
  }
  50% {
    opacity: 1;
  }
}