:root {
  --gold: #c9a962;
  --gold-soft: rgba(201, 169, 98, 0.35);
  --bg: #0b0c10;
  --glass: rgba(14, 16, 22, 0.72);
  --text: #f5f3ef;
  --muted: rgba(245, 243, 239, 0.62);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

#panorama {
  width: 100%;
  height: 100%;
  height: 100dvh;
  transform: translateZ(0);
}

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,.45) 100%);
}

.splash {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #0b0c10 0%, #151820 45%, #0b0c10 100%);
  transition: opacity .8s ease, visibility .8s ease;
}

.splash.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-inner {
  text-align: center;
  padding: 32px 28px;
  max-width: 420px;
}

.splash-tag {
  letter-spacing: .32em;
  font-size: 11px;
  color: var(--gold);
  margin-bottom: 18px;
}

.splash-title {
  font-size: clamp(28px, 8vw, 42px);
  font-weight: 300;
  letter-spacing: .12em;
  margin-bottom: 10px;
}

.splash-sub {
  color: var(--muted);
  font-size: 14px;
  letter-spacing: .2em;
  margin-bottom: 36px;
}

.enter-btn {
  border: 1px solid var(--gold);
  background: linear-gradient(180deg, rgba(201,169,98,.18), rgba(201,169,98,.06));
  color: var(--text);
  padding: 14px 42px;
  border-radius: 999px;
  font-size: 15px;
  letter-spacing: .25em;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.lux-header,
.lux-strip,
.hint {
  transition: opacity .45s ease, transform .45s ease;
}

body.ui-hidden .lux-header,
body.ui-hidden .hint {
  opacity: 0;
  pointer-events: none;
}

body.ui-hidden .lux-strip {
  opacity: 1;
  pointer-events: auto;
}

body.strip-collapsed .lux-strip {
  transform: translateY(110%);
  opacity: 0;
  pointer-events: none;
}

.lux-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: calc(16px + env(safe-area-inset-top)) 18px 12px;
  background: linear-gradient(180deg, rgba(0,0,0,.65), transparent);
  pointer-events: none;
}

.lux-brand, .lux-actions { pointer-events: auto; }

.lux-label {
  display: block;
  font-size: 10px;
  letter-spacing: .28em;
  color: var(--gold);
  margin-bottom: 6px;
}

.lux-brand h2 {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: .08em;
}

.lux-brand p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.lux-actions {
  display: flex;
  gap: 8px;
}

.lux-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.12);
  background: var(--glass);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(12px);
}

.lux-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 20px var(--gold-soft);
}

.hint {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 12;
  font-size: 12px;
  letter-spacing: .18em;
  color: rgba(255,255,255,.55);
  pointer-events: none;
  animation: hint-fade 4s ease forwards;
}

@keyframes hint-fade {
  0%, 70% { opacity: 1; }
  100% { opacity: 0; }
}

.lux-strip {
  position: fixed;
  left: 50%;
  bottom: calc(14px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 22;
  display: flex;
  gap: 10px;
  max-width: 94vw;
  padding: 10px 12px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(16px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.lux-thumb {
  flex: 0 0 auto;
  width: 96px;
  border: 1px solid transparent;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255,255,255,.04);
  cursor: pointer;
}

.lux-thumb.active {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold-soft);
}

.lux-thumb img {
  display: block;
  width: 100%;
  height: 54px;
  object-fit: cover;
}

.lux-thumb span {
  display: block;
  padding: 7px 8px 9px;
  font-size: 11px;
  letter-spacing: .06em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lux-panel {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(8,9,12,.94);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
}

.lux-panel.hidden { display: none; }

.lux-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(18px + env(safe-area-inset-top)) 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  letter-spacing: .12em;
}

#close-scenes {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 28px;
  cursor: pointer;
}

#scene-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  padding: 12px;
}

.lux-list-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border-radius: 14px;
  margin-bottom: 8px;
  cursor: pointer;
  border: 1px solid transparent;
}

.lux-list-item.active,
.lux-list-item:hover {
  border-color: var(--gold-soft);
  background: rgba(201,169,98,.08);
}

.lux-list-item img {
  width: 80px;
  height: 46px;
  object-fit: cover;
  border-radius: 8px;
}

.loading {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(0,0,0,.5);
  letter-spacing: .14em;
  font-size: 13px;
  color: var(--muted);
}

.loading.hidden { display: none; }

.loading-ring {
  width: 42px;
  height: 42px;
  border: 2px solid rgba(255,255,255,.12);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin .9s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }