/* ==========================================================================
   案例页 Cases
   ========================================================================== */

.works-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-line);
}

.works-filter-btn {
  padding: 10px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-muted);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.works-filter-btn:hover {
  color: var(--color-ink);
  border-color: var(--color-ink);
}

.works-filter-btn.is-active {
  background: var(--color-ink);
  color: var(--color-bg);
  border-color: var(--color-ink);
}

.works-filter-btn .count {
  font-size: 11px;
  opacity: 0.7;
}

.works-filter-btn.is-active .count {
  color: var(--color-gold);
  opacity: 1;
}

/* 案例网格 */
.works-grid-large {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: start;
}

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

@media (max-width: 640px) {
  .works-grid-large {
    grid-template-columns: 1fr;
  }
}

/* 第一个作品占2列 */
.works-grid-large .work-item-large {
  grid-column: span 2;
}

@media (max-width: 1024px) {
  .works-grid-large .work-item-large {
    grid-column: span 1;
  }
}

.work-item {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--duration-base) var(--ease-out);
  box-shadow: var(--shadow-xs);
}

.work-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.work-image {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: block;
}

.work-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--duration-slow) var(--ease-out);
}

.work-item:hover .work-image img {
  transform: scale(1.04);
}

.work-image-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(44, 38, 32, 0.7);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.work-item:hover .work-image-overlay {
  opacity: 1;
}

.work-view {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-bg);
  letter-spacing: var(--tracking-wide);
  padding: 12px 24px;
  background: var(--color-gold);
  border-radius: var(--radius-full);
  transform: translateY(8px);
  transition: transform var(--duration-base) var(--ease-out);
}

.work-item:hover .work-view {
  transform: translateY(0);
}

/* 15种案例背景色变体 */
.work-image-1 { background: linear-gradient(135deg, #E8DCC8 0%, #D4B896 100%); }
.work-image-2 { background: linear-gradient(135deg, #2C2620 0%, #5C4A3D 100%); color: var(--color-bg); }
.work-image-3 { background: linear-gradient(135deg, #B85C38 0%, #8E3F23 100%); color: var(--color-bg); }
.work-image-4 { background: linear-gradient(135deg, #F5EFE6 0%, #E8D9C0 100%); }
.work-image-5 { background: linear-gradient(135deg, #7B8B6F 0%, #4F5D45 100%); color: var(--color-bg); }
.work-image-6 { background: linear-gradient(135deg, #1A1714 0%, #2C2620 100%); color: var(--color-bg); }
.work-image-7 { background: linear-gradient(135deg, #D4814E 0%, #B85C38 100%); color: var(--color-bg); }
.work-image-8 { background: linear-gradient(135deg, #F5EFE6 0%, #E0D3B8 100%); }
.work-image-9 { background: linear-gradient(135deg, #C9A57B 0%, #8E6F43 100%); color: var(--color-bg); }
.work-image-10 { background: linear-gradient(135deg, #1F3A52 0%, #0D2237 100%); color: var(--color-bg); }
.work-image-11 { background: linear-gradient(135deg, #6B8E5A 0%, #4F6B43 100%); color: var(--color-bg); }
.work-image-12 { background: linear-gradient(135deg, #B85C38 0%, #5C2E1F 100%); color: var(--color-bg); }
.work-image-13 { background: linear-gradient(135deg, #2C4A52 0%, #1A2E33 100%); color: var(--color-bg); }
.work-image-14 { background: linear-gradient(135deg, #E8B981 0%, #B8935C 100%); color: var(--color-bg); }
.work-image-15 { background: linear-gradient(135deg, #4A5C6A 0%, #2C3A45 100%); color: var(--color-bg); }

.work-visual-mark {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4vw, 64px);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  font-style: italic;
  opacity: 0.85;
  position: relative;
}

.work-visual-mark::before {
  content: "";
  position: absolute;
  inset: -20px;
  border: 1px solid currentColor;
  opacity: 0.2;
  border-radius: 50%;
}

.work-meta {
  padding: 28px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.work-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.work-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.3;
}

.work-desc {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.work-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  color: var(--color-muted);
  letter-spacing: var(--tracking-wide);
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
}

.work-info .dot {
  color: var(--color-gold);
}

.works-foot {
  text-align: center;
  margin-top: 80px;
  padding-top: 60px;
  border-top: 1px solid var(--color-line);
}