/* 通用立体截图轮播；布局可由页面自己的样式覆盖。 */
.showcase-carousel { overflow: hidden; min-width: 0; position: relative; padding: 14px 0 0; border: 0; border-radius: 0; background: none; box-shadow: none; scroll-margin-top: 100px; }
.showcase-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 10px; }
.showcase-label { display: inline-flex; align-items: center; gap: 8px; color: var(--text-3); font-size: 12px; }
.showcase-label > span { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.showcase-mark { color: var(--text-4); font-size: 11px; font-weight: 700; letter-spacing: .15em; }
.showcase-stage { position: relative; display: grid; place-items: center; aspect-ratio: 1.36; perspective: 1100px; isolation: isolate; }
.showcase-stage::before { content: ''; position: absolute; inset: 18% 2% 4%; z-index: -1; border-radius: 50%; background: radial-gradient(ellipse, var(--accent-soft-3), var(--accent-soft) 38%, transparent 70%); }
.showcase-stage::after { content: ''; position: absolute; bottom: 8%; left: 12%; right: 12%; height: 20%; z-index: -1; border-radius: 50%; background: radial-gradient(ellipse, var(--accent-soft-2), transparent 70%); transform: rotate(-5deg); }
.showcase-slide { grid-area: 1 / 1; width: calc(100% - 84px); margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-1); box-shadow: 0 18px 36px -16px rgba(10, 20, 45, .32); backface-visibility: hidden; pointer-events: none; transition: transform 380ms cubic-bezier(.22,.68,.25,1), opacity 300ms ease, filter 300ms ease, box-shadow 300ms ease; }
.showcase-slide[data-position="active"] { z-index: 4; opacity: 1; transform: translate3d(0, -8px, 48px) rotateX(3deg) rotateY(-5deg) rotateZ(-1deg); box-shadow: 0 32px 48px -22px rgba(10, 20, 45, .5), 0 0 0 1px var(--accent-soft-3); }
.showcase-slide[data-position="next"] { z-index: 3; opacity: .6; filter: brightness(.82); transform: translate3d(12%, 10px, -100px) rotateY(-14deg) rotateZ(7deg); }
.showcase-slide[data-position="prev"] { z-index: 2; opacity: .45; filter: brightness(.75); transform: translate3d(-12%, 16px, -120px) rotateY(14deg) rotateZ(-8deg); }
.showcase-slide[data-position="back"] { z-index: 1; opacity: .25; filter: brightness(.7); transform: translate3d(1%, 30px, -180px) rotateZ(3deg); }
.showcase-slide img { display: block; width: 100%; height: auto; aspect-ratio: 5 / 3; }
.showcase-slide figcaption { display: flex; align-items: center; gap: 10px; min-height: 34px; margin: 0; padding: 8px 12px; border-bottom: 1px solid var(--line-soft); color: var(--text-2); font-size: 11px; font-weight: 600; }
.showcase-lights { display: flex; gap: 4px; flex-shrink: 0; }
.showcase-lights i { width: 5px; height: 5px; border-radius: 50%; background: var(--line); }
.showcase-lights i:first-child { background: var(--accent); }
.showcase-controls { display: flex; align-items: center; gap: 10px; margin-top: 12px; padding: 0 6px; }
.showcase-step { display: grid; place-items: center; width: 44px; min-height: 44px; padding: 0; flex-shrink: 0; border: 1px solid var(--line); border-radius: var(--radius-pill); background: var(--surface-1); color: var(--text-2); cursor: pointer; transition: border-color 180ms ease, background 180ms ease; }
.showcase-step svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.showcase-step:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.showcase-pages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; padding: 0 6px; }
.showcase-pages button { display: flex; align-items: center; justify-content: center; gap: 6px; min-width: 0; min-height: 44px; padding: 8px 6px; border: 1px solid var(--line-soft); border-radius: var(--radius-sm); color: var(--text-3); background: var(--surface-2); font-size: 12px; cursor: pointer; transition: border-color 180ms ease, color 180ms ease, background 180ms ease; }
.showcase-pages button > span { font: 11px ui-monospace, monospace; color: var(--text-4); }
.showcase-pages button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.showcase-pages button[aria-pressed="true"] > span { color: var(--accent); }
.showcase-pages button:hover { border-color: var(--accent); color: var(--accent); }
.showcase-progress { display: flex; flex: 1; align-items: center; gap: 10px; color: var(--text-4); font: 11px ui-monospace, monospace; }
[data-carousel-current] { color: var(--accent); }
.showcase-progress-track { height: 2px; flex: 1; overflow: hidden; background: var(--line-soft); }
.showcase-progress-track i { display: block; height: 100%; background: var(--accent); transform: scaleX(.25); transform-origin: left; transition: transform 300ms ease; }
.showcase-toggle .showcase-play-icon, .showcase-toggle[aria-pressed="true"] .showcase-pause-icon { display: none; }
.showcase-toggle[aria-pressed="true"] .showcase-play-icon { display: block; }
.showcase-step:focus-visible, .showcase-pages button:focus-visible, .showcase-carousel:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
@media (max-width: 620px) {
  .showcase-stage { aspect-ratio: 1.25; perspective: 900px; }
  .showcase-slide { width: calc(100% - 48px); border-radius: 9px; }
  .showcase-slide figcaption { min-height: 30px; gap: 6px; padding: 6px 8px; font-size: 10px; }
  .showcase-lights { gap: 3px; }
  .showcase-lights i { width: 4px; height: 4px; }
  .showcase-pages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  .showcase-slide, .showcase-pages button, .showcase-step, .showcase-progress-track i { transition: none; }
  .showcase-slide[data-position="active"] { transform: translate3d(0, -8px, 48px); }
}