/* ===== page-cases.css — 案例列表页 ===== */

.filter-bar { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; margin-bottom: var(--space-3xl); }
.filter-btn {
  padding: 10px 24px; border-radius: var(--radius-full); font-size: var(--text-sm);
  background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-secondary);
  text-decoration: none; transition: all var(--transition-base); cursor: pointer; font-weight: 500;
  letter-spacing: 0.01em;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--gradient-primary); border-color: transparent; color: #fff;
  box-shadow: var(--shadow-glow);
}

.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: var(--space-xl); }
.case-card {
  background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-xl);
  overflow: hidden; transition: all var(--transition-base); display: block; text-decoration: none; color: inherit;
}
.case-card:hover { transform: translateY(-8px); border-color: var(--border-color-hover); box-shadow: var(--shadow-xl); }
.case-card__image { width: 100%; aspect-ratio: 16/10; display: flex; align-items: center; justify-content: center; transition: all var(--transition-base); }
.case-card:hover .case-card__image { transform: scale(1.02); }
.case-card__image-icon { font-size: 3.5rem; opacity: 0.6; transition: opacity var(--transition-base); }
.case-card:hover .case-card__image-icon { opacity: 0.9; }
.case-card__body { padding: var(--space-xl); }
.case-card__category { display: inline-block; padding: 5px 14px; background: rgba(108,92,231,0.08); border: 1px solid rgba(108,92,231,0.15); border-radius: var(--radius-full); font-size: var(--text-xs); color: var(--color-primary-light); margin-bottom: var(--space-sm); letter-spacing: 0.02em; }
.case-card__title { font-size: var(--text-lg); font-weight: 700; color: var(--text-primary); margin-bottom: var(--space-xs); }
.case-card__summary { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; }

@media (max-width: 768px) {
  .filter-bar { gap: var(--space-xs); }
  .filter-btn { padding: 8px 16px; font-size: var(--text-xs); }
  .case-grid { grid-template-columns: 1fr; }
  .case-card__body { padding: var(--space-lg); }
  .case-card__image-icon { font-size: 2.5rem; }
}