/* Phase 4.1.1 · 官网案例列表 / 详情 UI 收口 */

.cases-main {
  padding-bottom: 32px;
  background: #fdfbf7;
}

.cases-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.cases-hero {
  padding: 28px 20px 14px;
  text-align: center;
  background: linear-gradient(180deg, #f7f2ea 0%, #fdfbf7 100%);
}

.cases-hero h1 {
  font-size: clamp(26px, 3.2vw, 34px);
  margin: 0 0 8px;
  color: #1a1613;
  font-weight: 700;
}

.cases-hero p {
  margin: 0 auto;
  max-width: 560px;
  color: #5c534a;
  line-height: 1.55;
  font-size: 15px;
}

.cases-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: 6px 20px 20px;
}

.cases-cats a {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(120, 95, 60, 0.25);
  color: #3a322a;
  text-decoration: none;
  font-size: 14px;
  background: #fffdf8;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.cases-cats a:hover,
.cases-cats a:focus-visible {
  border-color: #1a1613;
  outline: none;
}

.cases-cats a.is-active {
  background: #1a1613;
  color: #fffdf8;
  border-color: #1a1613;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  justify-content: center;
}

.cases-grid.is-sparse {
  justify-content: center;
}

.cases-grid.is-sparse .cases-card {
  max-width: 380px;
  width: 100%;
  justify-self: center;
}

.cases-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: #fffdf8;
  border: 1px solid rgba(120, 95, 60, 0.12);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(60, 40, 20, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.cases-card:hover,
.cases-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(60, 40, 20, 0.1);
  border-color: rgba(120, 95, 60, 0.28);
  outline: none;
}

.cases-card-cover {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #efe6d8 center/cover no-repeat;
}

.cases-card-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.cases-card-body h2 {
  font-size: 17px;
  margin: 0;
  line-height: 1.4;
  color: #1a1613;
  font-weight: 700;
}

.cases-card-loc {
  font-size: 13px;
  color: #7a7066;
}

.cases-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.cases-card-tag {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(184, 143, 72, 0.12);
  color: #6e5630;
}

.cases-empty {
  text-align: center;
  padding: 40px 20px;
  color: #7a7066;
}

.cases-empty--branded {
  max-width: 640px;
  margin: 40px auto;
  padding: 36px 24px;
  background: #fffdf8;
  border: 1px solid rgba(120, 95, 60, 0.12);
  border-radius: 16px;
}

.cases-empty--branded h1 {
  margin: 0 0 10px;
  font-size: 28px;
  color: #1a1613;
}

.cases-empty--branded p {
  margin: 0 0 16px;
  color: #5c534a;
  line-height: 1.6;
}

.cases-empty--branded a {
  color: #1a1613;
  font-weight: 600;
}

/* —— 详情 —— */
.case-detail {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 8px;
}

.case-breadcrumb {
  font-size: 13px;
  color: #7a7066;
  margin-bottom: 16px;
  line-height: 1.5;
}

.case-breadcrumb a {
  color: #5c534a;
  text-decoration: none;
}

.case-breadcrumb a:hover {
  text-decoration: underline;
}

.case-hero-cover {
  width: 100%;
  max-height: 420px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 16px;
  background: #efe6d8;
  margin-bottom: 22px;
  display: block;
}

.case-detail h1 {
  font-size: clamp(28px, 3.4vw, 40px);
  margin: 0 0 16px;
  line-height: 1.28;
  color: #1a1613;
  font-weight: 700;
}

.case-summary {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 28px;
  padding: 16px;
  background: #fffdf8;
  border: 1px solid rgba(120, 95, 60, 0.12);
  border-radius: 14px;
}

.case-summary-item {
  min-width: 0;
}

.case-summary-item .label {
  display: block;
  font-size: 12px;
  color: #8a8076;
  margin-bottom: 4px;
}

.case-summary-item .value {
  display: block;
  font-size: 14px;
  color: #1f1a16;
  font-weight: 600;
  line-height: 1.4;
  word-break: break-word;
}

.case-section {
  margin-bottom: 26px;
  padding: 18px 18px 20px;
  background: #fffdf8;
  border: 1px solid rgba(120, 95, 60, 0.1);
  border-radius: 14px;
}

.case-section h2 {
  font-size: 18px;
  margin: 0 0 10px;
  color: #1a1613;
  font-weight: 700;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(120, 95, 60, 0.12);
}

.case-section p {
  margin: 0;
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.75;
  color: #2c2620;
  white-space: pre-wrap;
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.case-gallery button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  border-radius: 12px;
  overflow: hidden;
}

.case-gallery button:focus-visible {
  outline: 2px solid #1a1613;
  outline-offset: 2px;
}

.case-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  background: #efe6d8;
  transition: transform 0.2s ease;
}

.case-gallery button:hover img {
  transform: scale(1.02);
}

.case-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(20, 16, 12, 0.82);
}

.case-lightbox[hidden] {
  display: none;
}

.case-lightbox img {
  max-width: min(96vw, 1100px);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  background: #1a1613;
}

.case-lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: 0;
  background: #fffdf8;
  color: #1a1613;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  font-size: 22px;
  cursor: pointer;
}

.case-related {
  max-width: 1200px;
  margin: 20px auto 0;
  padding: 0 20px;
}

.case-related h2 {
  font-size: 22px;
  margin: 0 0 14px;
  color: #1a1613;
}

.case-cta {
  max-width: 1080px;
  margin: 28px auto 8px;
  padding: 24px 22px;
  text-align: center;
  background: #f7f2ea;
  border-radius: 16px;
}

.case-cta h2 {
  margin: 0 0 8px;
  font-size: 22px;
  color: #1a1613;
}

.case-cta p {
  margin: 0;
  color: #5c534a;
}

.case-cta .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 14px;
}

@media (max-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-summary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .cases-grid.is-sparse .cases-card {
    max-width: none;
  }

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

  .case-gallery {
    grid-template-columns: 1fr;
  }

  .case-detail h1 {
    font-size: 28px;
  }

  .cases-hero {
    padding-top: 22px;
  }
}

@media (max-width: 390px) {
  .case-summary {
    grid-template-columns: 1fr;
  }

  .cases-cats {
    gap: 6px;
  }
}