*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--fs-16)/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.i {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 氛围层：随礼盒主色变化 ---------- */
.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(55% 75% at 68% 46%, color-mix(in oklab, var(--tint) 62%, transparent) 0%, transparent 72%),
    radial-gradient(40% 50% at 12% 100%, color-mix(in oklab, var(--tint) 22%, transparent) 0%, transparent 70%),
    var(--bg);
  transition: --tint 1400ms var(--ease);
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .6 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 顶栏 ---------- */
.top {
  position: relative;
  z-index: 3;
  height: 80px;
  padding: 0 var(--s-48);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  width: fit-content;
  text-decoration: none;
}
.brand__icon { width: 32px; height: 32px; border-radius: 8px; }
.brand__word { height: 14px; width: auto; opacity: 0.92; }

.top__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-14);
  letter-spacing: 0.5em;
  color: var(--muted);
  padding-left: 0.5em;
}

.top__actions {
  justify-self: end;
  display: flex;
  gap: var(--s-8);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  height: 40px;
  padding: 0 var(--s-16);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  font-size: var(--fs-14);
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}
.chip .i { width: 16px; height: 16px; }
.chip:hover { border-color: var(--gold); background: var(--gold-soft); }
.chip[aria-pressed="true"] .i-play,
.chip[aria-pressed="false"] .i-pause { display: none; }

/* ---------- 舞台 ---------- */
.stage {
  position: relative;
  z-index: 2;
  height: calc(100dvh - 80px - 120px);
  min-height: 460px;
  padding: 0 var(--s-48);
  display: grid;
  grid-template-columns: minmax(340px, 5fr) 7fr;
  align-items: center;
  gap: var(--s-48);
}

.info {
  max-width: 480px;
  padding-left: var(--s-16);
}

.series {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  margin: 0 0 var(--s-24);
  font-size: var(--fs-14);
  letter-spacing: 0.24em;
  color: var(--gold);
}
.series__dot {
  width: 24px;
  height: 1px;
  background: var(--gold);
}

.name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-display);
  line-height: 1.16;
  letter-spacing: 0.02em;
}
.name .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.name .line > span { display: block; will-change: transform; }
.name .line:last-child { color: color-mix(in oklab, var(--text) 62%, var(--tint)); font-weight: 400; font-size: 0.62em; letter-spacing: 0.12em; margin-top: var(--s-8); }

.desc {
  margin: var(--s-24) 0 0;
  max-width: 30em;
  color: var(--muted);
  font-size: var(--fs-16);
  line-height: 1.8;
}

.specs {
  margin: var(--s-32) 0 0;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--s-24);
  row-gap: var(--s-12);
  font-size: var(--fs-14);
  border-top: 1px solid var(--line);
  padding-top: var(--s-24);
}
.specs dt { color: var(--muted); }
.specs dd { margin: 0; color: var(--text); }

.fade-swap { transition: opacity 360ms var(--ease), transform 360ms var(--ease); }
.is-swapping .fade-swap { opacity: 0; transform: translateY(8px); }

/* 控制 */
.ctrl {
  margin-top: var(--s-48);
  display: flex;
  align-items: center;
  gap: var(--s-24);
}

.arrow {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.arrow:hover { border-color: var(--gold); background: var(--gold-soft); }
.arrow:active { transform: scale(0.94); }

.count {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--s-12);
  font-family: var(--font-latin);
  font-variant-numeric: lining-nums tabular-nums;
}
.count__now {
  display: block;
  height: 1.2em;
  overflow: hidden;
  font-size: 32px;
  line-height: 1.2;
}
.count__now > span { display: block; }
.count__sep { width: 32px; height: 1px; background: var(--muted); }
.count__all { font-size: var(--fs-16); color: var(--muted); }

/* ---------- 展台 ---------- */
.show {
  position: relative;
  margin: 0;
  height: 100%;
  display: grid;
  place-items: center;
  perspective: 1400px;
}

.plate {
  --rx: 0deg;
  --ry: 0deg;
  position: relative;
  width: min(62vh, 44vw, 640px);
  aspect-ratio: 1;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform 600ms var(--ease);
}
.plate__frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.plate__frame img {
  position: absolute;
  inset: 4%;
  width: 92%;
  height: 92%;
  object-fit: contain;
  filter: drop-shadow(0 24px 32px rgba(0, 0, 0, 0.45));
}

.plate__hint {
  position: absolute;
  right: var(--s-16);
  bottom: var(--s-16);
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  padding: var(--s-4) var(--s-12);
  border-radius: var(--r-pill);
  background: rgba(20, 16, 14, 0.78);
  color: var(--text);
  font-size: var(--fs-12);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.plate__hint .i { width: 14px; height: 14px; }
.plate:hover .plate__hint,
.plate:focus-visible .plate__hint { opacity: 1; transform: none; }

/* ---------- 底部缩略条 ---------- */
.strip {
  position: relative;
  z-index: 2;
  height: 120px;
  padding: 0 var(--s-48);
  display: flex;
  align-items: center;
}
.strip__track {
  display: flex;
  gap: var(--s-12);
  margin: 0 auto;
  padding: var(--s-24) var(--s-4) var(--s-16);
  overflow-x: auto;
  scrollbar-width: none;
  scroll-behavior: smooth;
}
.strip__track::-webkit-scrollbar { display: none; }

.thumb {
  position: relative;
  flex: none;
  width: 64px;
  height: 64px;
  padding: 0;
  border: 0;
  border-radius: var(--r-2);
  background: rgba(239, 232, 220, 0.06);
  cursor: pointer;
  opacity: 0.5;
  filter: saturate(0.6);
  transition: opacity 300ms var(--ease), transform 300ms var(--ease), filter 300ms var(--ease);
}
.thumb img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.thumb:hover { opacity: 0.85; filter: none; transform: translateY(-4px); }
.thumb[aria-selected="true"] { opacity: 1; filter: none; transform: translateY(-8px); box-shadow: 0 0 0 1px var(--gold), 0 12px 24px -8px rgba(0, 0, 0, 0.6); }
.thumb[aria-selected="true"]::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--red);
}
.thumb__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
}
.thumb[aria-selected="true"] .thumb__bar { animation: progress var(--autoplay, 6s) linear forwards; }
.is-paused .thumb__bar { animation-play-state: paused !important; }
.is-stopped .thumb__bar { animation: none !important; transform: scaleX(0); }
@keyframes progress { to { transform: scaleX(1); } }

/* ---------- 开场 ---------- */
.intro {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--s-24);
  background: var(--bg);
  animation: curtain 1000ms var(--ease-io) 2100ms forwards;
}
.intro__mark {
  width: 96px;
  opacity: 0;
  transform: scale(0.86);
  animation: markIn 1100ms var(--ease) 200ms forwards;
}
.intro__rule {
  order: 1;
  width: 0;
  height: 1px;
  background: var(--gold);
  animation: rule 900ms var(--ease) 700ms forwards;
}
.intro__word {
  order: 2;
  width: 240px;
  opacity: 0;
  letter-spacing: 0;
  clip-path: inset(0 100% 0 0);
  animation: wordIn 1000ms var(--ease) 1000ms forwards;
}
@keyframes markIn { to { opacity: 1; transform: none; } }
@keyframes rule { to { width: 240px; } }
@keyframes wordIn { to { opacity: 1; clip-path: inset(0 0 0 0); } }
@keyframes curtain { to { clip-path: inset(0 0 100% 0); visibility: hidden; } }
body:not(.is-intro) .intro { display: none; }

/* 舞台在幕布抬起时入场 */
.is-intro .info,
.is-intro .plate,
.is-intro .strip,
.is-intro .top { opacity: 0; }
.info, .plate, .strip, .top { transition: opacity 900ms var(--ease); }

/* ---------- 放大查看 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: radial-gradient(60% 60% at 50% 50%, color-mix(in oklab, var(--tint) 45%, var(--bg)), var(--bg));
  color: var(--text);
  display: grid;
  place-items: center;
  animation: lbIn 420ms var(--ease);
}
@keyframes lbIn { from { opacity: 0; } }
.lightbox__img {
  width: min(88vh, 92vw);
  aspect-ratio: 1;
  overflow: hidden;
  cursor: zoom-in;
}
.lightbox__img.is-zoomed { cursor: zoom-out; }
.lightbox__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 500ms var(--ease);
  animation: lbImg 600ms var(--ease);
}
@keyframes lbImg { from { opacity: 0; transform: scale(0.96); } }
.lightbox__img.is-zoomed img { transform: scale(2.4); transition: transform 500ms var(--ease), transform-origin 80ms linear; }
.lightbox__cap {
  position: absolute;
  left: var(--s-48);
  top: var(--s-32);
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 600;
}
.lightbox__tip {
  position: absolute;
  bottom: var(--s-24);
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-size: var(--fs-12);
  color: var(--muted);
  white-space: nowrap;
}
.lightbox .arrow { position: absolute; }
.lightbox__prev { left: var(--s-32); top: 50%; margin-top: -26px; }
.lightbox__next { right: var(--s-32); top: 50%; margin-top: -26px; }
.lightbox__close { right: var(--s-32); top: var(--s-24); }

/* ---------- 全部礼盒 ---------- */
.overview {
  position: fixed;
  inset: 0;
  z-index: 30;
  overflow-y: auto;
  padding: var(--s-32) var(--s-48) var(--s-64);
  background: color-mix(in oklab, var(--bg) 96%, var(--tint));
  animation: lbIn 360ms var(--ease);
}
.overview__head {
  display: flex;
  align-items: center;
  gap: var(--s-32);
  margin-bottom: var(--s-32);
}
.overview__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.2;
}
.filters { display: flex; gap: var(--s-8); flex: 1; flex-wrap: wrap; }
.filters .chip[aria-selected="true"] { border-color: var(--gold); background: var(--gold); color: var(--bg); }

.overview__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--s-32) var(--s-24);
}
.card {
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px);
  animation: cardIn 600ms var(--ease) forwards;
  animation-delay: calc(var(--n) * 50ms);
}
@keyframes cardIn { to { opacity: 1; transform: none; } }
.card__img {
  display: block;
  aspect-ratio: 1;
  background: radial-gradient(70% 60% at 50% 45%, rgba(239, 232, 220, 0.09), rgba(239, 232, 220, 0.02));
  border-radius: var(--r-2);
  overflow: hidden;
}
.card__img img { width: 100%; height: 100%; object-fit: contain; padding: 6%; transition: transform 600ms var(--ease); }
.card:hover .card__img img { transform: scale(1.06); }
.card__name { display: block; margin-top: var(--s-12); font-family: var(--font-display); font-size: var(--fs-16); font-weight: 600; }
.card__series { display: block; font-size: var(--fs-12); color: var(--muted); }
.card.is-current .card__img { box-shadow: 0 0 0 1px var(--gold); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .top { padding: 0 var(--s-24); }
  .top__title { display: none; }
  .top { grid-template-columns: 1fr auto; }
  .stage { padding: 0 var(--s-24); gap: var(--s-24); grid-template-columns: minmax(300px, 5fr) 6fr; }
}

@media (max-width: 760px) {
  body { overflow: auto; }
  .top { height: 64px; }
  .brand__word { display: none; }
  .chip__label { display: none; }
  .chip { width: 40px; padding: 0; justify-content: center; }
  .stage {
    height: auto;
    min-height: 0;
    grid-template-columns: 1fr;
    padding: var(--s-8) var(--s-24) var(--s-32);
    gap: var(--s-32);
  }
  .show { order: -1; height: auto; padding: var(--s-16) 0 var(--s-24); }
  .plate { width: min(100%, 72vh); }
  @media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
  }
}

/* 品牌字标：始终用原 Logo 字形，不用文字字体替代 */
.wm {
  display: inline-block;
  height: 0.72em;
  width: auto;
  vertical-align: baseline;
  margin: 0 0.15em;
}