/* 3D 房间页 */
.room-page {
  background: var(--night);
  color: #ece8e2;
  --room-line: #2f2c35;
}
.topbar.is-dark {
  background: rgba(28, 26, 31, 0.82);
  border-bottom-color: var(--room-line);
}
.topbar.is-dark .clock {
  color: #a39ca8;
}
.topbar.is-dark .clock-time,
.topbar.is-dark .topbar-contact {
  color: #f4f1ec;
}
.topbar.is-dark .nav a {
  color: #c9c3cd;
}
.topbar.is-dark .nav a:hover {
  background: #2a2730;
  color: #fff;
}
.topbar.is-dark .nav a[aria-current='page'] {
  background: #2a2730;
  color: #fff;
  box-shadow: inset 0 0 0 1px #3d3944;
}
.topbar.is-dark .nav-num {
  color: #aaa3b0;
}
.room-page a:hover {
  color: #f6c8a6;
}
.room-page :focus-visible {
  outline-color: #f0a072;
}

.room {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  height: calc(100svh - 72px);
  min-height: 560px;
}
.stage {
  position: relative;
  overflow: hidden;
  background: radial-gradient(120% 90% at 40% 30%, #2d2934 0%, #1c1a1f 70%);
}
.stage-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
  touch-action: none;
}
.stage-canvas.is-pointing {
  cursor: pointer;
}
.stage-fallback {
  position: absolute;
  inset: 0;
  margin: 0;
  display: none;
}
.stage-fallback img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.stage-fallback figcaption {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(28, 26, 31, 0.85);
  font-size: 14px;
}
.room.no-webgl .stage-fallback,
html:not(.js) .stage-fallback {
  display: block;
}
.room.no-webgl .loader,
.room.no-webgl .stage-hint,
html:not(.js) .loader,
html:not(.js) .stage-hint {
  display: none;
}

.loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 15px;
  color: #c9c3cd;
  background: var(--night);
  transition: opacity 0.8s var(--ease);
}
.loader.is-done {
  opacity: 0;
  pointer-events: none;
}
.loader-spark {
  font-size: 40px;
  color: var(--apricot);
  animation: spin 2.4s linear infinite;
}

.stage-hint {
  position: absolute;
  left: 20px;
  bottom: 20px;
  margin: 0;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(28, 26, 31, 0.75);
  border: 1px solid var(--room-line);
  font-family: var(--mono);
  font-size: 12px;
  color: #c9c3cd;
  pointer-events: none;
  transition: opacity 0.6s;
}
.stage-hint.is-hidden {
  opacity: 0;
}

.hotspots {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hotspot {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  padding: 0;
  border: 0;
  background: transparent;
  pointer-events: auto;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: opacity 0.3s;
}
.hotspot span {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 600 12px/1 var(--mono);
  color: var(--night);
  background: #f4f1ec;
  box-shadow: 0 0 0 5px rgba(240, 160, 114, 0.28);
  transition:
    background 0.2s,
    transform 0.25s var(--ease);
}
.hotspot:hover span,
.hotspot.is-active span {
  background: #f0a072;
  transform: scale(1.12);
}
.hotspot.is-active span {
  animation: ping 1.8s infinite;
}
.hotspot.is-behind {
  opacity: 0;
  pointer-events: none;
}
.hotspot-label {
  position: absolute;
  left: 50%;
  top: 100%;
  translate: -50% 2px;
  white-space: nowrap;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(28, 26, 31, 0.85);
  color: #f4f1ec;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.hotspot:hover .hotspot-label,
.hotspot:focus-visible .hotspot-label {
  opacity: 1;
}

.panel {
  border-left: 1px solid var(--room-line);
  padding: 32px 28px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.panel-no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #f0a072;
}
.panel-title {
  margin: -8px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 40px;
  line-height: 1.2;
}
.panel-lead {
  margin: -10px 0 0;
  font-size: 14px;
  color: #a39ca8;
}
.panel-card {
  padding: 20px;
  border-radius: 16px;
  background: #24222a;
  border: 1px solid #34303b;
}
.panel-card-no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: #f0a072;
}
.panel-card h2 {
  margin: 2px 0 8px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 900;
}
.panel-card p:not(.panel-card-no) {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: #d9d4dc;
}
.btn-apricot {
  min-height: 46px;
  padding: 0 18px;
  font-size: 15px;
  background: #f0a072;
  border-color: #f0a072;
  color: var(--night);
}
.btn-apricot:hover {
  color: var(--night) !important;
  background: #f6c8a6;
  border-color: #f6c8a6;
  transform: translateY(-2px);
}
.btn-apricot[hidden] {
  display: none;
}
.panel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.panel-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 10px;
  font-size: 15px;
  color: #d9d4dc;
  border: 1px solid transparent;
}
.panel-list a:hover {
  background: #24222a;
  color: #fff;
}
.panel-list a.is-active {
  background: #24222a;
  border-color: #3a3642;
  color: #fff;
}
.panel-list span {
  font-family: var(--mono);
  font-size: 12px;
  color: #f0a072;
}
.panel-list em {
  margin-left: auto;
  font-style: normal;
  font-size: 12px;
  color: #8f8996;
}

@keyframes ping {
  0% {
    box-shadow: 0 0 0 0 rgba(240, 160, 114, 0.6);
  }
  100% {
    box-shadow: 0 0 0 14px rgba(240, 160, 114, 0);
  }
}

@media (max-width: 920px) {
  .room {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(380px, 62svh) auto;
    height: auto;
  }
  .panel {
    border-left: 0;
    border-top: 1px solid var(--room-line);
    padding: 24px var(--gutter) 40px;
    overflow: visible;
  }
  .stage-hint {
    left: 12px;
    bottom: 12px;
    font-size: 11px;
  }
}