/* Showcase — left TOC + waterfall (align with FAQ/docs) */

:root {
  --safe-r: env(safe-area-inset-right, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
}

body.deck-body {
  min-height: 100%;
  min-height: 100dvh;
  /* Do not set overflow-x here — clip/hidden breaks sticky/fixed pin ancestors */
  overflow-x: visible;
}

/* Same atmosphere as home hero (glow + grid), fixed under the page */
.showcase-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.showcase-bg .hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(16, 163, 127, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 85% 18%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
  animation: showcase-glow-drift 14s var(--ease, cubic-bezier(0.22, 1, 0.36, 1)) infinite alternate;
}

.showcase-bg .hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, transparent 88%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, transparent 88%);
}

@keyframes showcase-glow-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(1.5%, -1%, 0) scale(1.03); }
}

body.deck-body > .site-shell {
  position: relative;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  .showcase-bg .hero-glow {
    animation: none;
  }
}

.showcase-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(var(--site-top-h) + 40px) calc(var(--page-pad) + var(--safe-r)) 96px
    calc(var(--page-pad) + var(--safe-l));
  box-sizing: border-box;
}

.showcase-layout {
  --showcase-gap-col: clamp(20px, 2.4vw, 36px);
  --showcase-gap-row: clamp(36px, 4vw, 56px);
  --showcase-sec-gap: clamp(64px, 8vw, 96px);
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 48px 56px;
  align-items: start;
}

.showcase-layout > .pin-nav-slot {
  width: 100%;
}

/* Museum wall-label TOC */
.showcase-toc {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.showcase-toc__title {
  margin: 0 0 20px;
  padding: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.showcase-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.showcase-toc__list li {
  margin: 0;
}

.showcase-toc__list a {
  display: block;
  padding: 9px 0 9px 12px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  border-radius: 0;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.showcase-toc__list a:hover {
  color: var(--text);
  background: transparent;
}

.showcase-toc__list a.is-active {
  color: var(--text);
  border-left-color: var(--accent-hover);
  background: transparent;
  font-weight: 500;
}

.showcase-toc__star {
  font-size: 10px;
  color: var(--accent-hover);
  margin-right: 4px;
}

.showcase-stream {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--showcase-sec-gap);
}

.showcase-autonomy {
  margin: 0 0 4px;
  max-width: 40rem;
  padding: 12px 0 4px;
  font-size: 13px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--line-subtle);
}

.work__prompt {
  margin: 8px 0 0;
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--text-muted);
  opacity: 0.9;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  cursor: help;
  word-break: break-word;
}

.work--text .work__prompt,
.work--copy .work__prompt {
  margin: 0 0 14px;
  padding: 0 2px;
  -webkit-line-clamp: 2;
}

.showcase-section {
  scroll-margin-top: calc(var(--site-top-h, 64px) + 20px);
}

.section__head {
  margin-bottom: 28px;
  max-width: 36rem;
}

.section__head h2 {
  margin: 0;
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section__lead {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 40rem;
}

.section__star {
  color: var(--accent-hover);
  font-size: 0.7em;
}

/* Gallery: 3 columns · 3:4 frames · museum whitespace */
.gallery,
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: var(--showcase-gap-col, clamp(20px, 2.4vw, 36px));
  row-gap: var(--showcase-gap-row, clamp(36px, 4vw, 56px));
  align-content: start;
}

.showcase-empty {
  min-height: 200px;
  display: grid;
  place-items: center;
  padding: 48px 16px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.showcase-empty__text {
  margin: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-align: center;
}

.work {
  min-width: 0;
  background: transparent;
  border: 0;
}

.work__frame {
  position: relative;
  display: block;
  aspect-ratio: 3 / 4;
  border-radius: 2px;
  overflow: hidden;
  background: linear-gradient(160deg, #161616 0%, #101010 55%, #0d0d0d 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04);
  transition: transform 420ms var(--ease), box-shadow 420ms var(--ease);
  color: inherit;
}

.work__frame img,
.work__ph {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.work__ph {
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.12);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background:
    radial-gradient(circle at 30% 20%, rgba(16, 163, 127, 0.12), transparent 45%),
    linear-gradient(165deg, #171717, #0e0e0e);
}

.work__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  background: rgba(0, 0, 0, 0.12);
}

.work__play > span {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  backdrop-filter: blur(4px);
}

.work__play > span::after {
  content: "";
  margin-left: 2px;
  border-left: 11px solid #ececec;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
}

/* 文案 / 企业合规：仅标题列表，无预览图 */
.gallery--text,
.gallery--copy {
  grid-template-columns: minmax(0, 1fr);
  max-width: 640px;
  row-gap: 0;
  column-gap: 0;
}

.work--text,
.work--copy {
  border-bottom: 1px solid var(--line-subtle);
}

.work--text .work__title-link,
.work--copy .work__title-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 2px;
  text-decoration: none;
  color: inherit;
  transition: color var(--dur-fast) var(--ease);
}

.work--text .work__name,
.work--copy .work__name {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.45;
  margin: 0;
}

.work--text .work__badge--inline,
.work--copy .work__badge--inline {
  margin: 0;
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  opacity: 0.85;
  white-space: nowrap;
}

@media (hover: hover) {
  .work--text .work__title-link:hover .work__name,
  .work--copy .work__title-link:hover .work__name {
    color: var(--accent-hover);
  }
}

.work__thumb--ph,
.work--ph-thumb .work__thumb {
  object-fit: cover;
  object-position: center;
}

.work__ph--logo {
  position: relative;
  overflow: hidden;
}

.work__ph--logo > img:first-child {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.work__ph-mark {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 22%;
  max-width: 72px;
  height: auto;
  transform: translate(-50%, -50%);
  opacity: 0.72;
  filter: grayscale(0.15) brightness(1.05);
  pointer-events: none;
}

.work__meta {
  margin-top: 14px;
  padding: 0 2px;
}

.work__name {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text);
  line-height: 1.35;
}

.work__anno {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.work__badge {
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.85;
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .work:hover .work__frame {
    transform: translateY(-3px);
    box-shadow:
      0 0 0 1px rgba(255, 255, 255, 0.08),
      0 18px 40px rgba(0, 0, 0, 0.35);
  }
}

/* Legacy card aliases (viewers / older markup) */
.card {
  min-width: 0;
}

.card__media {
  display: block;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #101010;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Smooth upward reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.62s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.62s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Footer inside page flow */
.showcase-page + .site-bottom,
.site-shell > .site-bottom.showcase-bottom {
  margin-top: 0;
}

/* —— Viewers (unchanged) —— */
.preview-shell {
  min-height: 100dvh;
  background: var(--bg);
}

.preview-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px calc(18px + var(--safe-r)) 12px calc(18px + var(--safe-l));
  background: rgba(10, 10, 10, 0.92);
  border-bottom: 1px solid var(--line-subtle);
  backdrop-filter: blur(12px);
}

.preview-bar h1 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.preview-bar .hint {
  font-size: 12px;
  color: var(--text-muted);
}

.preview-stage {
  padding: 20px;
}

.preview-stage--md {
  max-width: 740px;
  margin: 0 auto;
  padding: 40px 28px 72px;
  color: var(--text-body);
}

.preview-stage--md h1,
.preview-stage--md h2,
.preview-stage--md h3 {
  color: var(--text);
}

.preview-stage--md pre {
  overflow: auto;
  padding: 12px;
  border-radius: var(--radius);
  background: #121212;
  border: 1px solid var(--line-subtle);
}

.ppt-stage {
  display: grid;
  place-items: center;
  min-height: calc(100dvh - 56px);
  padding: 24px;
  background: #050505;
}

.ppt-stage img {
  max-width: min(1100px, 100%);
  max-height: calc(100dvh - 120px);
  border-radius: var(--radius);
}

.ppt-nav {
  display: flex;
  gap: 8px;
}

.ppt-nav button {
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  color: var(--text-body);
  background: var(--bg-elevated);
}

.video-stage {
  display: grid;
  place-items: center;
  min-height: calc(100dvh - 56px);
  padding: 24px;
}

.video-stage video {
  width: min(1100px, 100%);
  border-radius: var(--radius-lg);
  background: #000;
}

@media (max-width: 960px) {
  .showcase-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .showcase-toc__list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
  }

  .showcase-toc__list li {
    margin: 0;
  }

  .showcase-toc__list a {
    border-left: 0;
    padding-left: 0;
    margin-left: 0;
  }

  .gallery,
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .showcase-page {
    padding-top: calc(var(--site-top-h) + 28px);
  }

  .gallery,
  .grid {
    grid-template-columns: 1fr;
    max-width: 280px;
  }
}