.page-case .breadcrumbs { margin-bottom: 0; }

.page-case .zh-hero__media img {
  object-fit: cover;
  object-position: center;
}

.case-prose { max-width: 44rem; }

.case-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}
.case-gallery figure { margin: 0; }
.case-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}
.case-gallery figcaption {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.case-viewer {
  position: relative;
  width: 100%;
}
.case-viewer__frame {
  display: grid;
  grid-template-columns: minmax(0, 28rem) minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 1rem;
  row-gap: 0.75rem;
  align-items: start;
}
.case-viewer__stage,
.case-viewer__slide,
.case-viewer__photo,
.case-viewer__thumbs,
.case-viewer__thumb {
  min-width: 0;
  min-height: 0;
}
.case-viewer__stage {
  display: grid;
  grid-template-rows: subgrid;
  grid-column: 1;
  grid-row: 1 / 3;
  overflow: hidden;
}
.case-viewer__slide {
  display: none;
  margin: 0;
  width: 100%;
  grid-template-rows: subgrid;
  grid-row: 1 / 3;
}
.case-viewer__slide.is-active { display: grid; }
.case-viewer__photo {
  position: relative;
  grid-row: 1;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 1440 / 2560;
  border-radius: 18px;
  touch-action: pan-y;
}
.case-viewer__photo img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: cover;
  -webkit-user-drag: none;
  user-select: none;
  pointer-events: none;
}
.case-viewer__badge {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  z-index: 1;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #fff;
  font: 600 0.72rem/1.25 var(--font);
}
.case-viewer__slide figcaption {
  grid-row: 2;
  width: 0;
  min-width: 100%;
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.92rem;
}
.case-viewer__thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: start;
  gap: 0.65rem;
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  overflow: visible;
}
.case-viewer[data-thumbs="6"] .case-viewer__thumbs {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.4rem;
}
.case-viewer[data-thumbs="6"] .case-viewer__thumb { border-radius: 10px; }
.case-viewer[data-thumbs="6"] .case-viewer__thumb span { display: none; }
.case-viewer__thumb {
  position: relative;
  display: block;
  box-sizing: border-box;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  appearance: none;
  background: none;
  font: inherit;
  color: inherit;
  border: 2px solid var(--line);
  border-radius: 14px;
}
.case-viewer__thumb.is-active { border-color: var(--accent); }
.case-viewer__thumb img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1440 / 2560;
  object-fit: cover;
}
.case-viewer__thumb span {
  position: absolute;
  left: 0.25rem;
  right: 0.25rem;
  bottom: 0.25rem;
  padding: 0.12rem 0.2rem;
  border-radius: 6px;
  background: color-mix(in srgb, #0f1219 72%, transparent);
  color: #fff;
  font: 600 0.58rem/1.15 var(--font);
  text-align: center;
}

.case-schemes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.case-scheme {
  position: relative;
  margin: 0;
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-elevated);
}
.case-scheme__label {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #fff;
  font: 600 0.72rem/1.25 var(--font);
}
.case-scheme img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
  border-radius: var(--radius);
}
.case-scheme figcaption {
  margin-top: 0.75rem;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.case-variants,
.case-prepare {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.case-prepare { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.case-variants article,
.case-prepare article {
  margin: 0;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-elevated);
}
.case-variants h3,
.case-prepare h3 { margin: 0 0 0.55rem; font-size: 1.05rem; }
.case-variants p,
.case-prepare p { margin: 0 0 0.7rem; }
.case-variants p:last-child,
.case-prepare p:last-child { margin-bottom: 0; }

.case-highlight {
  max-width: 48rem;
  padding: 1.35rem 1.4rem 1.45rem;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-elevated));
}
.case-highlight h2 { margin: 0 0 0.7rem; }
.case-highlight p { margin: 0 0 0.8rem; }
.case-highlight p:last-child { margin-bottom: 0; }

.case-pairs { display: grid; gap: 1rem; }
.case-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
.case-pair figure { margin: 0; }
.case-pair span {
  display: inline-block;
  margin-bottom: 0.4rem;
  font: 600 0.78rem/1.2 var(--font);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.case-pair img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center 28%;
  border-radius: var(--radius);
}

.case-check {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.case-check li {
  position: relative;
  padding: 0.7rem 0.85rem 0.7rem 2.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}
.case-check li::before {
  content: "";
  position: absolute;
  left: 0.8rem;
  top: 0.95rem;
  width: 0.85rem;
  height: 0.85rem;
  border: 1.5px solid var(--accent);
  border-radius: 3px;
}

.case-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.2rem 0;
}

@media (max-width: 1024px) {
  .case-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .case-variants { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .case-gallery,
  .case-schemes,
  .case-prepare,
  .case-pair,
  .case-check { grid-template-columns: 1fr; }
  .case-viewer {
    width: 100vw;
    max-width: 100vw;
    margin-left: calc(50% - 50vw);
    padding-inline: 0.75rem;
    box-sizing: border-box;
  }
  .case-viewer__frame {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    column-gap: 0;
    row-gap: 0.65rem;
  }
  .case-viewer__stage,
  .case-viewer__slide {
    grid-column: 1;
    width: 100%;
    max-width: none;
  }
  .case-viewer__stage { touch-action: pan-y; }
  .case-viewer__photo { width: 100%; }
  .case-viewer__slide figcaption {
    width: auto;
    min-width: 0;
  }
  .case-viewer__thumbs {
    display: flex;
    grid-column: 1;
    grid-row: 3;
    grid-template-columns: none;
    height: auto;
    min-height: 0;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0 0 0.15rem;
  }
  .case-viewer__thumb { flex: 0 0 4.6rem; }
}