/* "DNA 商业观察" nine-image gallery on project detail pages (2026-10-15).
   The gallery data loads only for local review until photo rights are cleared; this sheet is inert without it. */
body[data-experience="dual-v01"] .dual-content-gallery {
  min-width: 0;
  display: grid;
  gap: 10px;
  margin-top: 4px;
}
body[data-experience="dual-v01"] .dual-content-gallery-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 84%;
  gap: 12px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
body[data-experience="dual-v01"] .dual-content-gallery-track:focus-visible {
  outline: 3px solid var(--dna-blue);
  outline-offset: 3px;
}
body[data-experience="dual-v01"] .dual-content-gallery-item {
  min-width: 0;
  display: grid;
  gap: 6px;
  margin: 0;
  scroll-snap-align: start;
}
body[data-experience="dual-v01"] .dual-content-gallery-item > button {
  display: block;
  padding: 0;
  border: 1px solid var(--dna-ink);
  border-radius: 0;
  background: var(--dna-paper-deep);
  cursor: zoom-in;
}
body[data-experience="dual-v01"] .dual-content-gallery-item img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}
body[data-experience="dual-v01"] .dual-content-gallery-item figcaption {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: #5d5850;
  font-size: 11px;
  line-height: 1.4;
}
body[data-experience="dual-v01"] .dual-content-gallery-item figcaption b {
  flex: none;
  color: var(--dna-ink);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
body[data-experience="dual-v01"] .dual-content-gallery-item figcaption span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
body[data-experience="dual-v01"] .dual-content-gallery-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--dna-ink);
  padding-top: 8px;
}
body[data-experience="dual-v01"] .dual-content-gallery-bar p {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
}
body[data-experience="dual-v01"] .dual-content-gallery-bar p strong { font-weight: 800; }
body[data-experience="dual-v01"] .dual-content-gallery-bar p span { color: #5d5850; }
body[data-experience="dual-v01"] .dual-content-gallery-bar div { display: flex; gap: 6px; }
body[data-experience="dual-v01"] .dual-content-gallery-bar button {
  width: 44px;
  height: 36px;
  border: 1px solid var(--dna-ink);
  border-radius: 2px;
  background: transparent;
  color: var(--dna-ink);
  font: inherit;
  font-size: 16px;
  cursor: pointer;
}
body[data-experience="dual-v01"] .dual-content-gallery-bar button:hover { background: var(--dna-ink); color: var(--dna-paper); }
body[data-experience="dual-v01"] .dual-content-gallery-note {
  color: #5d5850;
  font-size: 11px;
  line-height: 1.5;
}

/* Full-size reading view */
.dual-content-lightbox {
  width: min(560px, calc(100vw - 24px));
  max-height: calc(100svh - 24px);
  padding: 12px;
  border: 1px solid var(--dna-ink);
  border-radius: 2px;
  background: var(--dna-paper);
  color: var(--dna-ink);
  overflow: auto;
}
.dual-content-lightbox::backdrop { background: rgb(14 14 14 / 72%); }
.dual-content-lightbox figure { display: grid; gap: 8px; margin: 0; }
.dual-content-lightbox img {
  display: block;
  width: 100%;
  height: auto;
  max-height: calc(100svh - 190px);
  object-fit: contain;
  background: var(--dna-paper-deep);
}
.dual-content-lightbox figcaption { display: grid; gap: 4px; font-size: 13px; line-height: 1.55; }
.dual-content-lightbox figcaption b { font-variant-numeric: tabular-nums; }
.dual-content-lightbox figcaption small { color: #5d5850; font-size: 11px; }
.dual-content-lightbox nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  margin-top: 10px;
}
.dual-content-lightbox nav button {
  min-height: 44px;
  border: 1px solid var(--dna-ink);
  border-radius: 2px;
  background: transparent;
  color: var(--dna-ink);
  padding: 0 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
}
.dual-content-lightbox nav button:disabled { opacity: .35; cursor: default; }

@media (min-width: 1100px) {
  body[data-experience="dual-v01"] .dual-content-gallery-track { grid-auto-columns: 78%; }
  .dual-content-lightbox { width: min(640px, calc(100vw - 48px)); }
}
@media (prefers-reduced-motion: reduce) {
  body[data-experience="dual-v01"] .dual-content-gallery-track { scroll-behavior: auto; }
}