:root {
  color-scheme: dark;
  --layout-scale: 1;
  --type-scale: 1;
  --bg: #101917;
  --gold: #dca852;
  --bronze: #55766a;
  --smoke: #efe6cf;
  --teal: #61b89f;
  --copy-soft: rgba(239, 230, 207, 0.68);
  --copy-faint: rgba(239, 230, 207, 0.38);
  --hairline: rgba(239, 230, 207, 0.24);
  --focus: #efe6cf;
  --text-left: 90px;
  --text-top: 66px;
  --text-width: 426px;
  --category-width: 330px;
  --body-min-height: 198px;
  --category-size: 17px;
  --title-size: 48px;
  --alias-size: 20px;
  --intro-size: 24px;
  --body-size: 13.4px;
  --feature-size: 19px;
  --label-size: 12px;
  --footer-size: 12px;
  --category-margin: 8px;
  --title-margin: 9px;
  --intro-margin: 18px;
  --body-margin: 18px;
  --meta-gap: 16px;
  --feature-gap: 8px;
  --footer-side: 76px;
  --footer-bottom: 38px;
  --footer-index-width: 78px;
  --footer-gap: 20px;
  --restart-width: 72px;
  --restart-height: 30px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

.showcase {
  position: relative;
  width: 100vw;
  height: 100vh;
  min-width: 1180px;
  min-height: 640px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 74% 48%, rgba(85, 118, 106, 0.14) 0%, rgba(85, 118, 106, 0.07) 24%, rgba(16, 25, 23, 0) 57%),
    linear-gradient(110deg, rgba(220, 168, 82, 0.03), rgba(97, 184, 159, 0.05) 45%, rgba(16, 25, 23, 0) 76%),
    #101917;
}

.showcase::before,
.showcase::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.showcase::before {
  background:
    linear-gradient(rgba(239, 230, 207, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(239, 230, 207, 0.014) 1px, transparent 1px);
  background-size: calc(96px * var(--layout-scale)) calc(96px * var(--layout-scale));
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.42), transparent 72%);
  opacity: 0.36;
}

.showcase::after {
  background:
    radial-gradient(ellipse at center, transparent 42%, rgba(0, 0, 0, 0.36) 100%),
    linear-gradient(90deg, rgba(16, 25, 23, 0.78) 0%, rgba(16, 25, 23, 0.22) 41%, rgba(16, 25, 23, 0.02) 100%);
}

#showcase-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

#showcase-canvas.is-dragging {
  cursor: grabbing;
}

.stage-veil {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 22%, rgba(0, 0, 0, 0.12) 100%),
    repeating-linear-gradient(0deg, rgba(239, 230, 207, 0.012) 0, rgba(239, 230, 207, 0.012) 1px, transparent 1px, transparent 5px);
  mix-blend-mode: screen;
  opacity: 0.22;
}

.catalog-panel {
  position: absolute;
  z-index: 4;
  left: calc(var(--text-left) * var(--layout-scale));
  top: calc(var(--text-top) * var(--layout-scale));
  width: calc(var(--text-width) * var(--layout-scale));
  color: var(--smoke);
  pointer-events: none;
}

.category-en,
.title-zh,
.alias-en,
.intro-zh,
.body-copy,
.meta-block,
.feature-list {
  margin: 0;
  opacity: 0;
  transform: translate3d(0, calc(18px * var(--layout-scale)), 0);
  will-change: opacity, transform;
}

.category-en {
  max-width: calc(var(--category-width) * var(--layout-scale));
  color: var(--gold);
  font-size: calc(var(--category-size) * var(--type-scale));
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: calc(2.2px * var(--layout-scale));
  text-transform: uppercase;
}

.title-zh {
  margin-top: calc(var(--category-margin) * var(--layout-scale));
  color: var(--gold);
  font-family: "SimSun", "Songti SC", "Noto Serif CJK SC", serif;
  font-size: calc(var(--title-size) * var(--layout-scale));
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0;
}

.alias-en {
  margin-top: calc(var(--title-margin) * var(--layout-scale));
  color: rgba(239, 230, 207, 0.9);
  font-family: Georgia, "Times New Roman", serif;
  font-size: calc(var(--alias-size) * var(--type-scale));
  line-height: 1.1;
  letter-spacing: calc(3.6px * var(--layout-scale));
}

.intro-zh {
  margin-top: calc(var(--intro-margin) * var(--layout-scale));
  color: rgba(239, 230, 207, 0.86);
  font-family: "SimSun", "Songti SC", "Noto Serif CJK SC", serif;
  font-size: calc(var(--intro-size) * var(--type-scale));
  line-height: 1.24;
}

.body-copy {
  margin-top: calc(var(--body-margin) * var(--layout-scale));
  min-height: calc(var(--body-min-height) * var(--type-scale));
  color: var(--copy-soft);
  font-size: calc(var(--body-size) * var(--type-scale));
  line-height: 1.88;
  letter-spacing: 0;
  text-wrap: pretty;
}

.body-cursor {
  display: inline-block;
  width: max(1px, calc(1.5px * var(--layout-scale)));
  height: 1.18em;
  margin-left: calc(4px * var(--layout-scale));
  transform: translateY(0.18em);
  background: var(--gold);
  opacity: 0;
}

.meta-block {
  display: flex;
  align-items: flex-start;
  gap: calc(28px * var(--layout-scale));
  margin-top: calc(var(--meta-gap) * var(--layout-scale));
}

.meta-label {
  margin: 0 0 calc(var(--feature-gap) * var(--layout-scale));
  color: var(--copy-faint);
  font-size: calc(var(--label-size) * var(--type-scale));
  line-height: 1.2;
  letter-spacing: calc(0.8px * var(--layout-scale));
}

.palette-list,
.craft-list,
.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: calc(7px * var(--layout-scale));
}

.palette-item {
  display: inline-flex;
  align-items: center;
  gap: calc(6px * var(--layout-scale));
  color: rgba(239, 230, 207, 0.72);
  font-size: calc(var(--label-size) * var(--type-scale));
  line-height: 1;
}

.palette-dot {
  width: calc(11px * var(--layout-scale));
  height: calc(11px * var(--layout-scale));
  border: max(1px, calc(1px * var(--layout-scale))) solid rgba(239, 230, 207, 0.42);
  border-radius: 50%;
}

.craft-tag {
  display: inline-flex;
  align-items: center;
  min-height: calc(22px * var(--layout-scale));
  padding: 0 calc(8px * var(--layout-scale));
  border: max(1px, calc(1px * var(--layout-scale))) solid rgba(220, 168, 82, 0.38);
  border-radius: calc(2px * var(--layout-scale));
  color: rgba(239, 230, 207, 0.74);
  font-size: calc(var(--label-size) * var(--type-scale));
  line-height: 1;
}

.feature-list {
  margin-top: calc(var(--feature-gap) * 2.5 * var(--layout-scale));
}

.feature-item {
  color: var(--smoke);
  font-family: "SimSun", "Songti SC", "Noto Serif CJK SC", serif;
  font-size: calc(var(--feature-size) * var(--type-scale));
  line-height: 1.18;
  opacity: 0;
  transform: translate3d(0, calc(12px * var(--layout-scale)), 0);
}

.feature-item::before {
  color: var(--gold);
  content: "— ";
}

.loading-state,
.error-state {
  position: absolute;
  z-index: 5;
  left: 50%;
  top: 50%;
  display: flex;
  align-items: center;
  gap: calc(12px * var(--layout-scale));
  transform: translate(-50%, -50%);
  color: rgba(239, 230, 207, 0.76);
  font-size: calc(var(--label-size) * var(--type-scale));
  letter-spacing: calc(0.8px * var(--layout-scale));
}

.loading-state[hidden],
.error-state[hidden] {
  display: none !important;
}

.loading-mark {
  width: calc(28px * var(--layout-scale));
  height: calc(1px * var(--layout-scale));
  background: linear-gradient(90deg, var(--gold), var(--teal));
  transform-origin: left center;
  animation: loadingPulse 1.25s ease-in-out infinite;
}

.error-state {
  flex-direction: column;
  width: min(46vw, calc(520px * var(--layout-scale)));
  text-align: center;
  color: var(--smoke);
}

.error-state strong {
  color: var(--gold);
  font-size: calc(18px * var(--layout-scale));
}

.error-state span {
  color: var(--copy-soft);
  line-height: 1.7;
}

.timeline-bar {
  position: absolute;
  z-index: 4;
  left: calc(var(--footer-side) * var(--layout-scale));
  right: calc(var(--footer-side) * var(--layout-scale));
  bottom: calc(var(--footer-bottom) * var(--layout-scale));
  display: grid;
  grid-template-columns: calc(var(--footer-index-width) * var(--layout-scale)) 1fr auto;
  align-items: center;
  gap: calc(var(--footer-gap) * var(--layout-scale));
  color: rgba(239, 230, 207, 0.64);
}

.item-index {
  font-family: Georgia, "Times New Roman", serif;
  font-size: calc(var(--footer-size) * var(--type-scale));
  letter-spacing: calc(1.4px * var(--layout-scale));
  white-space: nowrap;
}

.progress-track {
  position: relative;
  height: max(1px, calc(1px * var(--layout-scale)));
  overflow: hidden;
  background: rgba(239, 230, 207, 0.16);
}

.progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--teal));
}

.restart-button {
  min-width: calc(var(--restart-width) * var(--layout-scale));
  min-height: calc(var(--restart-height) * var(--layout-scale));
  padding: 0 calc(12px * var(--layout-scale));
  border: max(1px, calc(1px * var(--layout-scale))) solid rgba(239, 230, 207, 0.32);
  border-radius: calc(2px * var(--layout-scale));
  color: rgba(239, 230, 207, 0.76);
  background: transparent;
  font: inherit;
  font-size: calc(var(--footer-size) * var(--type-scale));
  letter-spacing: calc(1px * var(--layout-scale));
  cursor: pointer;
}

.restart-button:hover,
.restart-button:focus-visible {
  border-color: rgba(220, 168, 82, 0.76);
  color: var(--smoke);
  outline: none;
}

.restart-button:focus-visible {
  box-shadow: 0 0 0 max(2px, calc(2px * var(--layout-scale))) rgba(239, 230, 207, 0.2);
}

@keyframes loadingPulse {
  0%,
  100% {
    transform: scaleX(0.45);
    opacity: 0.46;
  }

  50% {
    transform: scaleX(1);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .loading-mark {
    animation: none;
  }

  .category-en,
  .title-zh,
  .alias-en,
  .intro-zh,
  .body-copy,
  .meta-block,
  .feature-list,
  .feature-item {
    transition: opacity 160ms linear;
  }
}