/* ============================================
   成功案例专属样式 (case.css)
============================================ */

/* 内页 Hero Banner */
.inner-page-hero {
  position:relative;
  background:url('https://images.unsplash.com/photo-1477959858617-67f85cf4f1df?w=1920&q=80') no-repeat center center/cover;
  height:380px;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding-bottom:40px;
}
.inner-page-hero.case-detail-hero {
  height: 220px;
  padding-bottom: 30px;
}
.inner-page-hero::before {
  content:''; position:absolute; inset:0;
  background:linear-gradient(to top, rgba(0,20,60,0.88) 0%, rgba(0,40,100,0.45) 55%, rgba(0,0,0,0.15) 100%);
}
.inner-page-hero.case-detail-hero::before {
  background:linear-gradient(to top, rgba(0,18,54,0.85) 0%, rgba(0,0,0,0.3) 100%);
}
.inner-page-hero .container { position:relative; z-index:2; }
.detail-breadcrumb-bar { background:transparent; border-bottom:none; padding:0; margin-bottom:16px; }
.breadcrumb-list { display:flex; align-items:center; flex-wrap:wrap; gap:0; font-size:0.95rem; color:rgba(255,255,255,0.7); }
.case-detail-hero .breadcrumb-list { font-size: 0.88rem; margin-bottom: 0; }
.breadcrumb-list a { color:#fff; transition:color 0.25s; }
.case-detail-hero .breadcrumb-list a { color: rgba(255,255,255,0.9); }
.breadcrumb-list a:hover { color:#a4c9ff; }
.case-detail-hero .breadcrumb-list a:hover { color: #fff; }
.breadcrumb-list .sep { margin:0 8px; opacity:0.5; color:#fff; font-size:0.8rem; }
.case-detail-hero .breadcrumb-list .sep { margin: 0 7px; font-size: 0.78rem; }
.breadcrumb-list .current { color:#fff; font-weight:700; }
.case-detail-hero .breadcrumb-list .current { font-weight: 500; }
.hero-title { font-size:clamp(2rem,3.5vw,2.8rem); font-weight:800; color:#fff; margin:0; letter-spacing:0.02em; }
.hero-subtitle { font-size:1.05rem; color:rgba(255,255,255,0.8); margin-top:10px; max-width:680px; line-height:1.65; }

/* ============================================
   案例数据统计横幅
============================================ */
.cases-stats-bar { background: var(--primary); padding: 0; }
.cases-stats-inner { display: flex; align-items: stretch; max-width: 1400px; margin: 0 auto; }
.stat-bar-item {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 28px 20px; border-right: 1px solid rgba(255,255,255,0.12);
  position: relative; transition: background 0.3s;
}
.stat-bar-item:last-child { border-right: none; }
.stat-bar-item:hover { background: rgba(255,255,255,0.06); }
.stat-bar-item .sbi-icon {
  width: 48px; height: 48px; flex-shrink: 0; background: rgba(255,255,255,0.12);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #fff;
}
.stat-bar-item .sbi-num {
  font-family: var(--font-display); font-size: 1.9rem; font-weight: 700;
  color: #fff; line-height: 1; display: flex; align-items: baseline; gap: 3px;
}
.stat-bar-item .sbi-num .unit { font-size: 1rem; opacity: 0.85; }
.stat-bar-item .sbi-label { font-size: 0.85rem; color: rgba(255,255,255,0.72); margin-top: 4px; }

/* ============================================
   案例筛选工具栏
============================================ */
.cases-filter-section {
  background: #fff; padding: 30px 0; border-bottom: 1px solid #eaedf2;
  position: sticky; top: 80px; z-index: 200;
}
.filter-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.filter-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-label { font-size: 0.9rem; font-weight: 700; color: var(--text-dark); white-space: nowrap; margin-right: 8px; }
.filter-btn {
  display: inline-flex; align-items: center; gap: 5px; padding: 7px 18px;
  background: #fff; border: 1px solid #dde2ea; color: var(--text-muted);
  font-size: 0.9rem; font-weight: 600; border-radius: 30px; cursor: pointer;
  transition: var(--transition); outline: none; white-space: nowrap;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); background: #f0f5ff; }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 3px 10px rgba(0,71,157,0.22); }

.filter-search { display: flex; align-items: center; gap: 12px; }
.view-toggle { display: flex; gap: 4px; }
.view-btn {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid #dde2ea; border-radius: 6px; cursor: pointer;
  color: #aaa; font-size: 0.95rem; transition: var(--transition); outline: none;
}
.view-btn.active, .view-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============================================
   案例列表区域
============================================ */
.cases-list-section { padding: 50px 0 80px; background: var(--bg-light); min-height: 600px; }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cases-grid.list-view { grid-template-columns: 1fr; gap: 20px; }

/* 案例卡片 */
.case-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-light); box-shadow: var(--shadow-sm);
  transition: var(--transition); display: flex; flex-direction: column; position: relative;
  text-decoration: none !important;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0,71,157,0.15); }
.case-card__img-wrap { position: relative; overflow: hidden; background: #e8ecf4; }
.case-card__img-wrap img {
  width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block;
  transition: transform 0.55s cubic-bezier(0.4,0,0.2,1);
}
.case-card:hover .case-card__img-wrap img { transform: scale(1.06); }

.case-card__hover-mask {
  position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,20,70,0.7) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.35s ease; display: flex; align-items: flex-end; padding: 20px;
}
.case-card:hover .case-card__hover-mask { opacity: 1; }
.case-card__hover-mask .mask-link {
  display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.92);
  color: var(--primary); font-size: 0.85rem; font-weight: 700; padding: 8px 16px; border-radius: 20px;
  transition: var(--transition);
}
.case-card__hover-mask .mask-link:hover { background: #fff; }

.case-card__body { padding: 24px 24px 16px; flex: 1; display: flex; flex-direction: column; }
.case-card__name {
  font-size: 1.1rem; font-weight: 800; color: var(--text-dark); line-height: 1.4;
  margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color 0.2s;
}
.case-card:hover .case-card__name { color: var(--primary); }
.case-card__desc {
  font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; flex: 1; margin-bottom: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.case-card__footer { padding: 14px 24px; border-top: 1px solid #f0f2f6; display: flex; align-items: center; justify-content: flex-end; }
.case-read-link { display: inline-flex; align-items: center; gap: 5px; font-size: 0.85rem; font-weight: 600; color: var(--primary); transition: gap 0.2s; }
.case-read-link:hover { gap: 9px; }
.case-read-link .fa-arrow-right { font-size: 0.75rem; }

/* 列表视图样式覆盖 */
.cases-grid.list-view .case-card { flex-direction: row; min-height: 160px; }
.cases-grid.list-view .case-card__img-wrap { flex: 0 0 280px; aspect-ratio: unset; min-height: 160px; }
.cases-grid.list-view .case-card__img-wrap img { width: 100%; height: 100%; aspect-ratio: unset; }
.cases-grid.list-view .case-card__body { padding: 24px 30px; justify-content: center; }
.cases-grid.list-view .case-card__name { -webkit-line-clamp: 1; font-size: 1.2rem; }
.cases-grid.list-view .case-card__desc { -webkit-line-clamp: 3; }
.cases-grid.list-view .case-card__footer {
  border-top: none; border-left: 1px solid #f0f2f6; padding: 20px 24px;
  flex-direction: column; align-items: center; justify-content: center; flex: 0 0 160px;
}
.cases-grid.list-view .case-card__hover-mask { display: none; }

/* ============================================
   分页组件
============================================ */
.cases-pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 60px; flex-wrap: wrap; }
.page-btn {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid #dde2ea; border-radius: 8px; font-size: 0.9rem; font-weight: 600;
  color: var(--text-muted); cursor: pointer; transition: var(--transition); outline: none;
}
.page-btn:hover, .page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 3px 10px rgba(0,71,157,0.22); }
.page-btn.prev-next { width: auto; padding: 0 14px; gap: 6px; font-size: 0.85rem; }
.page-btn.prev-next i { font-size: 0.75rem; }
.page-ellipsis { color: #aaa; font-size: 0.9rem; padding: 0 4px; line-height: 40px; }

/* ============================================
   SEO 文案区 + 行业经验落地 (新实景排版)
============================================ */
.seo-text-section { padding: 100px 0; background: #fdfdfd; border-top: 1px solid var(--border-light); }
.seo-header { text-align: center; margin-bottom: 60px; }
.seo-header h2 { font-size: clamp(1.8rem, 3vw, 2.2rem); font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.seo-divider { width: 60px; height: 4px; background: var(--primary); border-radius: 2px; margin: 0 auto; }
.scene-image-container { position: relative; padding-bottom: 30px; padding-right: 30px; height: 100%; }
.scene-image-wrapper { position: relative; border-radius: 24px; overflow: hidden; box-shadow: 0 15px 40px rgba(0,0,0,0.08); height: 100%; min-height: 450px; }
.scene-image-wrapper img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.stats-floating-card {
  position: absolute; bottom: 0; right: 0; background: #fff; padding: 28px 36px; border-radius: 20px;
  box-shadow: 0 12px 32px rgba(0,71,157,0.15); border-left: 6px solid var(--primary); z-index: 2; display: inline-block;
}
.sf-num { font-size: 3rem; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 4px; font-family: var(--font-display); }
.sf-num span { font-size: 1.1rem; color: var(--text-muted); font-weight: 600; margin-left: 4px; }
.sf-text { font-size: 1rem; color: var(--text-dark); font-weight: 700; }

.seo-text-content p { font-size: 1.05rem; color: var(--text-muted); line-height: 1.9; margin-bottom: 20px; text-align: justify; }
.seo-text-content a { color: var(--primary); font-weight: 600; transition: color 0.2s; }
.seo-text-content a:hover { color: var(--primary-dark); text-decoration: underline; }
.keyword-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.keyword-tag {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.85rem; font-weight: 600; color: var(--text-muted);
  background: #f8f9fa; border: 1px solid #eaedf2; padding: 8px 18px; border-radius: 30px; transition: var(--transition);
}
.keyword-tag:hover { background: #eef4ff; border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.keyword-tag i { font-size: 0.8rem; color: var(--accent-green); }

.coverage-box { background: #fff; border: 1px solid #eaedf2; border-radius: 16px; padding: 32px; margin-top: 36px; box-shadow: 0 8px 24px rgba(0,0,0,0.03); }
.coverage-box h4 { font-size: 1.15rem; font-weight: 800; color: var(--text-dark); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.coverage-box h4 i { color: var(--primary); font-size: 1.25rem; }
.province-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.province-tag {
  font-size: 0.85rem; font-weight: 600; padding: 6px 14px; border-radius: 6px;
  background: #f8f9fa; border: 1px solid #eaedf2; color: #666; transition: var(--transition);
}
.province-tag.has-case { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 12px rgba(0,71,157,0.15); }
.province-tag:hover { transform: translateY(-3px); }

/* ============================================
   案例详情页专属
============================================ */
.reading-progress-line { position: fixed; top: 0; left: 0; height: 3px; width: 0%; background: linear-gradient(to right, var(--primary), #3a9bdc); z-index: 10002; transition: width 0.1s linear; }
.case-detail-section { background: var(--bg-light); padding: 60px 0 80px; }
.article-wrapper { background: #fff; border-radius: var(--radius); border: 1px solid rgba(0,0,0,0.06); box-shadow: var(--shadow-sm); overflow: hidden; width: 100%; }
.article-header { padding: 60px 8% 30px; }
.case-detail-section .article-header { padding: 60px 8% 10px; }
.article-title { font-size: clamp(1.4rem, 3.2vw, 2rem); font-weight: 800; color: var(--text-dark); line-height: 1.4; margin: 0 0 15px; text-align: center; }
.case-detail-section .article-title { margin-bottom: 25px; }

.article-meta-wrapper { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-top: 25px; padding-top: 18px; border-top: 1px solid #eaeaea; color: #999; font-size: 0.9rem; }
.case-detail-section .article-meta-wrapper { margin-top: 0; padding-top: 20px; margin-bottom: 10px; }
.article-meta-info { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.article-font-ctrl { display: flex; align-items: center; }
.case-detail-section .article-font-ctrl { font-size: 0.9rem; }
.article-font-ctrl a { color: #999; margin: 0 4px; text-decoration: none; transition: color 0.3s; cursor: pointer; }
.article-font-ctrl a:hover { color: var(--primary); }

.case-meta-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; background: #f8faff; padding: 24px 30px; border-radius: 8px; margin-top: 15px; border: 1px solid #eef2f8; }
.case-meta-item { display: flex; flex-direction: column; gap: 6px; border-left: 3px solid var(--primary); padding-left: 15px; }
.case-meta-label { font-size: 0.85rem; color: #888; text-transform: uppercase; }
.case-meta-val { font-size: 1.1rem; font-weight: 700; color: var(--text-dark); line-height: 1.3;}

.article-body { padding: 30px 8% 50px; font-size: 1.08rem; line-height: 2.0; color: var(--text-dark); transition: font-size 0.3s ease; }
.article-body h2 { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); margin: 40px 0 18px; padding-bottom: 12px; border-bottom: 1px solid #eee; }
.article-body h3 { font-size: 1.25rem; font-weight: 700; color: var(--text-dark); margin: 30px 0 15px; }
.article-body p { margin-bottom: 24px; text-align: justify; }
.article-body img { max-width: 100%; height: auto; display: block; margin: 35px auto; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.article-body a { color: var(--primary); text-decoration: none; border-bottom: 1px solid rgba(0,71,157,0.3); transition: border-color .2s; }
.article-body a:hover { border-bottom-color: var(--primary); }
.article-body ul, .article-body ol { margin-bottom: 24px; padding-left: 24px; }
.article-body li { margin-bottom: 10px; }

.seo-info-block { background: #f8faff; border: 1px solid #eef2f8; border-left: 4px solid var(--primary); padding: 20px 25px; border-radius: 0 8px 8px 0; margin-top: 40px; font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; }
.seo-info-block strong { color: var(--text-dark); margin-right: 6px; }
.seo-info-block i { color: var(--primary); margin-right: 4px; }
.seo-info-block a { border-bottom: 1px solid var(--primary); color: var(--primary); font-weight: 500; }
.seo-info-block a:hover { color: var(--primary-dark); }

.share-action-bar { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 40px; padding-top: 25px; border-top: 1px dashed #eee; }
.share-label { font-size: 0.95rem; color: #888; }
.share-btn { width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; border: 1px solid #e8eaf0; background: #fff; color: #888; cursor: pointer; outline: none; transition: var(--transition); }
.share-btn:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.share-btn.wx:hover { background: #07c160; color: #fff; border-color: #07c160; }
.share-btn.wb:hover { background: #e6162d; color: #fff; border-color: #e6162d; }
.share-btn.lk:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.article-tags-wrapper { border-top: 1px solid #f0f2f6; background: #fafbfc; }
.article-tags { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 30px 8% 15px; }
.tag-label { font-size: 0.95rem; color: #888; }
.article-tag { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; background: #fff; border: 1px solid #e5eaf3; padding: 6px 18px; border-radius: 20px; transition: var(--transition); }
.article-tag:hover { background: #EEF5FF; border-color: var(--primary); color: var(--primary); }
.article-url { padding: 0 8% 30px; font-size: 0.9rem; color: #999; word-wrap: break-word; }
.article-url a { color: #999; border-bottom: none; transition: color 0.2s; }
.article-url a:hover { color: var(--primary); }

.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 35px; }
.article-nav-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); padding: 28px 30px; display: flex; align-items: center; gap: 20px; transition: var(--transition); text-decoration: none !important;}
.article-nav-card:hover { border-color: rgba(0,71,157,0.2); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.article-nav-card.next { flex-direction: row-reverse; text-align: right; }
.nav-arrow { flex-shrink: 0; width: 48px; height: 48px; border-radius: 50%; background: var(--bg-light); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.1rem; transition: var(--transition); }
.article-nav-card:hover .nav-arrow { background: var(--primary); color: #fff; }
.nav-direction { font-family: var(--font-en); font-size: 0.85rem; color: #999; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.nav-title { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .2s; }
.article-nav-card:hover .nav-title { color: var(--primary); }

/* 公共轮播样式 */
.custom-carousel { position: relative; padding-bottom: 50px; }
.custom-carousel .carousel-inner { padding-top: 10px; padding-bottom: 25px; }
.custom-carousel .carousel-control-prev, .custom-carousel .carousel-control-next { width: 48px; height: 48px; background: #fff; border-radius: 50%; box-shadow: var(--shadow-md); top: 40%; transform: translateY(-50%); opacity: 1; border: 1px solid #eee; display: flex; align-items: center; justify-content: center; }
.custom-carousel .carousel-control-prev { left: -24px; }
.custom-carousel .carousel-control-next { right: -24px; }
.custom-carousel .carousel-control-prev-icon, .custom-carousel .carousel-control-next-icon { display: none; }
.custom-carousel .carousel-control-prev::after, .custom-carousel .carousel-control-next::after { font-family: 'Font Awesome 5 Free'; font-weight: 900; color: var(--primary); font-size: 1.2rem; }
.custom-carousel .carousel-control-prev::after { content: '\f053'; margin-right: 3px;}
.custom-carousel .carousel-control-next::after { content: '\f054'; margin-left: 3px;}
.custom-carousel .carousel-indicators { bottom: -20px; }
.custom-carousel .carousel-indicators li { width: 30px; height: 4px; border-radius: 2px; background: var(--primary); opacity: 0.3; margin: 0 4px; }
.custom-carousel .carousel-indicators .active { opacity: 1; width: 48px; }

/* ============ 成功案例模块(详情底部轮播专属) ============ */
.cases-block { background: #fff; border-radius: var(--radius); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); margin-top: 35px; }
.cases-block-header { padding: 24px 35px; border-bottom: 1px solid #f0f2f6; display: flex; align-items: center; gap: 14px; }
.cases-block-header i { color: var(--primary); font-size: 1.3rem; }
.cases-block-header h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-dark); margin: 0; }

/* 恢复轮播容器和卡片的外边距，防止碰到箭头 */
.cases-carousel-wrap { padding: 10px 35px 10px; }
.cases-carousel-wrap .case-card { display: block; margin: 8px 4px 16px; height: auto; }

/* 恢复原版图片尺寸控制 */
.case-img-wrap { overflow: hidden; height: 220px; }
.case-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .case-img-wrap img { transform: scale(1.06); }

/* 恢复原版的内边距（解决文字贴边核心） */
.case-card-body { padding: 24px; text-align: left; }
.case-card-title { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color 0.2s;}
.case-card:hover .case-card-title { color: var(--primary); }
.case-card-excerpt { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 0;}

/* 恢复原版箭头定位 */
.custom-carousel .carousel-control-prev { left: -24px; }
.custom-carousel .carousel-control-next { right: -24px; }

/* 底部扩展模块 */
.bottom-extensions { margin-top: 70px; border-top: 1px solid #eaedf2; padding-top: 60px; }
.extension-block { margin-bottom: 60px; }
.ext-header { margin-bottom: 28px; display: flex; align-items: center; justify-content: space-between; }
.ext-header h3 { font-size: 1.4rem; font-weight: 800; color: var(--text-dark); margin: 0; display: flex; align-items: center; gap: 12px; }
.ext-header h3::before { content: ''; display: inline-block; width: 5px; height: 1.15em; background: var(--primary); border-radius: 3px; }
.ext-more { font-size: 0.95rem; color: var(--text-muted); font-weight: 600; display: flex; align-items: center; gap: 5px; transition: color 0.2s; }
.ext-more:hover { color: var(--primary); }

.ext-products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ep-card { display: block; background: #fff; border-radius: var(--radius); border: 1px solid var(--border-light); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm); text-decoration: none !important; }
.ep-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0,71,157,0.2); }
.ep-img-wrap { overflow: hidden; border-bottom: 1px solid #f0f2f6; }
.ep-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .5s cubic-bezier(0.2, 0.8, 0.2, 1); }
.ep-card:hover .ep-img { transform: scale(1.08); }
.ep-body { padding: 22px 18px; text-align: center; background: #fff; position: relative; z-index: 2; }
.ep-title { font-size: 1.1rem; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; transition: color .2s; }
.ep-card:hover .ep-title { color: var(--primary); }
.ep-desc { font-size: 0.9rem; color: var(--text-muted); }

.ext-hot-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 60px; background: #fff; padding: 35px 45px; border-radius: var(--radius); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); }
.eh-item { display: flex; align-items: center; gap: 16px; padding: 20px 0; border-bottom: 1px dashed #e4e7ed; transition: var(--transition); text-decoration: none !important; width: 100%; box-sizing: border-box; overflow: hidden; }
.ext-hot-grid > a:nth-last-child(-n+2) { border-bottom: none; } 
.eh-item:hover { transform: translateX(6px); }
.eh-item:hover .eh-title { color: var(--primary); }
.eh-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: 6px; background: #f0f4fa; color: #888; display: flex; align-items: center; justify-content: center; font-size: 0.95rem; font-weight: 700; font-family: var(--font-display); }
.eh-num.top { background: var(--primary); color: #fff; }
.eh-title { flex: 1 1 auto; min-width: 0; font-size: 1.05rem; color: var(--text-dark); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: color .2s; }
.eh-date { font-family: var(--font-display); font-size: 0.9rem; color: #aaa; flex-shrink: 0; margin-left: 10px; white-space: nowrap; } 

.rn-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); margin: 8px 4px 16px; border: 1px solid var(--border-light); display: flex; flex-direction: column; text-decoration: none !important; height: 100%;}
.rn-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0,71,157,0.15); }
.rn-card__img { overflow: hidden; flex-shrink: 0; height: 200px; }
.rn-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(0.2, 0.8, 0.2, 1); }
.rn-card:hover .rn-card__img img { transform: scale(1.08); }
.rn-card__body { padding: 22px 20px 18px; flex: 1; display: flex; flex-direction: column; }
.rn-cat { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; width: fit-content; }
.rn-cat.company { background: #eef4ff; color: var(--primary); }
.rn-cat.industry { background: #fff4e8; color: #c46a00; }
.rn-cat.knowledge { background: #e8f8f1; color: #0a8a55; }
.rn-title { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); line-height: 1.5; flex: 1; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .2s; }
.rn-card:hover .rn-title { color: var(--primary); }
.rn-foot { display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; color: #999; }
.rn-read { color: var(--primary); font-weight: 600; display: flex; align-items: center; gap: 4px; font-size: 0.88rem; transition: gap .2s; }
.rn-read:hover { gap: 7px; }

/* 入场动画 */
.fade-up { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.fade-up.in { opacity: 1; transform: translateY(0); }
.fade-in-up { opacity:0; transform:translateY(22px); transition:opacity 0.5s ease, transform 0.5s ease; }
.fade-in-up.visible { opacity:1; transform:translateY(0); }

/* ============================================
   响应式断点
============================================ */
@media (max-width: 1199px) { 
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .ext-hot-grid { padding: 30px; gap: 0 40px; }
}
@media (max-width: 991px) {
  .cases-stats-inner { flex-wrap: wrap; }
  .stat-bar-item { flex: 0 0 50%; border-bottom: 1px solid rgba(255,255,255,0.12); }
  .stat-bar-item:nth-child(2) { border-right: none; }
  .cases-grid.list-view .case-card { flex-direction: column; }
  .cases-grid.list-view .case-card__img-wrap { flex: none; width: 100%; min-height: auto; }
  .cases-grid.list-view .case-card__footer { flex-direction: row; border-top: 1px solid #f0f2f6; border-left: none; flex: none; }
  .scene-image-container { padding-right: 0; padding-bottom: 40px; min-height: 400px; margin-bottom: 30px; }
  .stats-floating-card { right: 20px; bottom: 10px; padding: 20px 24px; }
  .sf-num { font-size: 2.2rem; }
  .ext-products-grid { grid-template-columns: repeat(2, 1fr); }
  .ext-hot-grid { grid-template-columns: 1fr; gap: 0; }
  .ext-hot-grid > a:nth-last-child(2) { border-bottom: 1px dashed #e4e7ed; } 
}
@media (max-width: 767px) {
  .cases-stats-inner { flex-direction: column; }
  .stat-bar-item { flex: none; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .cases-filter-section { position: static; padding: 20px 0; }
  .filter-row { gap: 16px; justify-content: center; }
  .cases-grid { grid-template-columns: 1fr; gap: 20px; }
  .seo-header h2 { font-size: 1.6rem; }
  
  .article-header { padding: 30px 15px 10px; } 
  .article-title { font-size: 1.35rem; text-align: left; margin-bottom: 15px; }
  .article-meta-wrapper { flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 15px; padding-top: 15px; }
  .case-detail-section .article-meta-wrapper { margin-top: 0; padding-top: 20px; margin-bottom: 10px; }
  .article-meta-info { gap: 12px; font-size: 0.85rem;}
  
  .case-meta-grid { grid-template-columns: repeat(2, 1fr); padding: 20px; gap: 15px; margin-top: 15px;}
  .case-meta-val { font-size: 1rem; }
  .case-meta-item { padding-left: 10px; }
  
  .article-body { padding: 20px 15px; font-size: 1.05rem; } 
  .article-tags { padding: 20px 15px 10px; }
  .article-url { padding: 0 15px 25px; }
  .share-action-bar { margin-top: 20px; padding-top: 20px; justify-content: flex-start; }
  .seo-info-block { padding: 15px; font-size: 0.95rem; margin-top: 30px; }
  
  .article-nav { grid-template-columns: 1fr; }
  .article-nav-card { padding: 20px; flex-direction: column; text-align: center; gap: 12px; }
  .article-nav-card.next { flex-direction: column; text-align: center; }
  .article-nav-card .nav-arrow { margin-bottom: 5px; }
  
  .cases-block-header { padding: 15px 20px; }
  .cases-carousel-wrap { padding: 10px 15px 35px; } 
  
  /* 修复手机端轮播图箭头溢出 */
  .custom-carousel .carousel-control-prev { left: 0px; top: 35%; width: 36px; height: 36px; }
  .custom-carousel .carousel-control-next { right: 0px; top: 35%; width: 36px; height: 36px; }
  .custom-carousel .carousel-control-prev::after, .custom-carousel .carousel-control-next::after { font-size: 1rem; }
  .custom-carousel .carousel-indicators { bottom: -10px; }
  
  .rn-card { margin: 8px 0 16px; }
  .ext-products-grid { grid-template-columns: 1fr; }
  .ext-hot-grid { padding: 15px; }
  .eh-item { gap: 10px; padding: 15px 0; }
  .eh-num { width: 28px; height: 28px; font-size: 0.9rem; }
  .eh-title { font-size: 0.95rem; }
  .eh-date { font-size: 0.8rem; margin-left: 5px; }
  .eh-year { display: none; }
  .news-detail-section { padding: 20px 0 60px; }
}
@media (max-width: 480px) {
  .filter-btn { padding: 6px 14px; font-size: 0.85rem; }
  .cases-pagination { gap: 5px; }
  .page-btn { width: 34px; height: 34px; font-size: 0.85rem; }
  .province-tags { gap: 8px; }
  .coverage-box { padding: 24px; }
}