/* ============================================
   cases.css - 工程案例列表 + 详情独立样式
   ============================================ */

/* ========== 案例列表 ========== */
.cases-section {
  padding: 0.5rem 0 0.6rem;
}

.cases-filter {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  margin-bottom: 0.3rem;
  flex-wrap: wrap;
}

.cases-filter .filter-label {
  font-size: 0.15rem;
  font-weight: 700;
  color: #1a3a5c;
  margin-right: 0.06rem;
}

.cases-filter a {
  display: inline-block;
  padding: 0.05rem 0.16rem;
  font-size: 0.14rem;
  color: #555;
  border: 1px solid #ddd;
  border-radius: 0.03rem;
  transition: all 0.3s;
}

.cases-filter a:hover,
.cases-filter a.active {
  background: #1a3a5c;
  color: #fff;
  border-color: #1a3a5c;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.2rem;
}

.case-card {
  background: #fff;
  border-radius: 0.06rem;
  overflow: hidden;
  border: 1px solid #eee;
  transition: all 0.4s;
}

.case-card:hover {
  box-shadow: 0 12px 36px rgba(0,0,0,0.1);
  transform: translateY(-5px);
  border-color: #f5b400;
}

.case-card .case-img {
  width: 100%;
  height: 2.4rem;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.case-card:hover .case-img {
  transform: scale(1.05);
}

.case-card .case-body {
  padding: 0.16rem 0.18rem 0.2rem;
}

.case-card .case-cat {
  font-size: 0.12rem;
  color: #f5b400;
  font-weight: 600;
  margin-bottom: 0.04rem;
}

.case-card h3 {
  font-size: 0.17rem;
  color: #1a3a5c;
  margin-bottom: 0.06rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 0.46rem;
}

.case-card .case-desc {
  font-size: 0.13rem;
  color: #888;
  margin-bottom: 0.08rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-card .case-meta {
  display: flex;
  align-items: center;
  gap: 0.12rem;
  font-size: 0.12rem;
  color: #999;
  padding-top: 0.08rem;
  border-top: 1px solid #f0f0f0;
}

.case-card .case-meta span {
  display: flex;
  align-items: center;
  gap: 0.03rem;
}

/* ========== 案例详情 ========== */
.case-detail-section {
  padding: 0.4rem 0 0.6rem;
}

.case-detail-header {
  text-align: center;
  margin-bottom: 0.35rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid #eee;
}

.case-detail-header .case-cat-tag {
  display: inline-block;
  background: #fef8e7;
  color: #e6a800;
  font-size: 0.12rem;
  padding: 0.03rem 0.1rem;
  border-radius: 0.02rem;
  margin-bottom: 0.1rem;
  font-weight: 600;
}

.case-detail-header h1 {
  font-size: 0.3rem;
  color: #1a3a5c;
  font-weight: 800;
  margin-bottom: 0.1rem;
  line-height: 1.3;
}

.case-detail-header .case-info-row {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  font-size: 0.14rem;
  color: #888;
  flex-wrap: wrap;
}

.case-detail-header .case-info-row span {
  display: flex;
  align-items: center;
  gap: 0.04rem;
}

.case-detail-body {
  font-size: 0.16rem;
  color: #444;
  line-height: 1.9;
}

.case-detail-body h2 {
  font-size: 0.22rem;
  color: #1a3a5c;
  margin: 0.3rem 0 0.12rem;
  padding-left: 0.1rem;
  border-left: 3px solid #f5b400;
}

.case-detail-body h3 {
  font-size: 0.18rem;
  color: #2a2a2a;
  margin: 0.2rem 0 0.08rem;
}

.case-detail-body p {
  margin-bottom: 0.12rem;
}

.case-detail-body img {
  max-width: 100%;
  border-radius: 0.06rem;
  margin: 0.15rem 0;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.case-detail-body ul {
  padding-left: 0.2rem;
  margin-bottom: 0.15rem;
}

.case-detail-body ul li {
  list-style: disc;
  margin-bottom: 0.06rem;
}

/* 案例图片画廊 */
.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.12rem;
  margin: 0.2rem 0;
}

.case-gallery img {
  width: 100%;
  height: 2rem;
  object-fit: cover;
  border-radius: 0.04rem;
  transition: transform 0.4s;
}

.case-gallery img:hover {
  transform: scale(1.03);
}

/* 上下篇导航 */
.case-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.15rem;
  margin-top: 0.4rem;
  padding-top: 0.25rem;
  border-top: 1px solid #eee;
}

.case-prev-next a {
  display: block;
  padding: 0.12rem 0.16rem;
  background: #f8f9fb;
  border-radius: 0.04rem;
  font-size: 0.14rem;
  color: #444;
  transition: all 0.3s;
  border: 1px solid #eee;
}

.case-prev-next a:hover {
  background: #1a3a5c;
  color: #fff;
  border-color: #1a3a5c;
}

.case-prev-next .prev {
  text-align: left;
}

.case-prev-next .next {
  text-align: right;
}

.case-prev-next .pn-label {
  font-size: 0.12rem;
  color: #999;
  display: block;
  margin-bottom: 0.02rem;
}

/* ========== 响应式 ========== */
@media (max-width: 1280px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .case-gallery { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); gap: 0.15rem; }
  .case-card .case-img { height: 2rem; }
  .case-detail-header h1 { font-size: 0.24rem; }
}

@media (max-width: 768px) {
  .cases-grid { grid-template-columns: 1fr; }
  .case-card .case-img { height: 2.2rem; }
  .case-detail-header h1 { font-size: 0.2rem; }
  .case-detail-header .case-info-row { gap: 0.12rem; font-size: 0.12rem; }
  .case-detail-body { font-size: 0.14rem; }
  .case-gallery { grid-template-columns: 1fr; }
  .case-gallery img { height: 2.2rem; }
  .case-prev-next { grid-template-columns: 1fr; }
}