/* ====== 客户案例页专属样式 ====== */

/* 统计卡片条 */
.stats-strip {
  padding: 0;
  margin-top: -28px;
  position: relative;
  z-index: 10;
}
.stats-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.stat-card .stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-card .stat-num.cyan { color: var(--secondary-cyan); }
.stat-card .stat-num.orange { color: var(--secondary-orange); }
.stat-card .stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* 选项卡区域 */
.cases-tabs-section {
  padding: 56px 0 32px;
}
.cases-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.cases-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-light);
  border: 1px solid transparent;
  border-radius: 24px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.cases-tab:hover {
  color: var(--primary);
  background: rgba(22,93,255,.06);
  border-color: rgba(22,93,255,.15);
}
.cases-tab.active {
  color: var(--white);
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(22,93,255,.3);
}
.cases-tab .tab-icon {
  font-size: 16px;
}

/* 案例网格 */
.cases-grid-section {
  padding: 0 0 80px;
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* 案例卡片 */
.case-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,.1);
  border-color: transparent;
}

/* 卡片头部 - 渐变背景条 */
.case-card-header {
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.case-card-header.banxian  { background: linear-gradient(135deg, rgba(22,93,255,.06) 0%, rgba(22,93,255,.02) 100%); }
.case-card-header.dingzhi  { background: linear-gradient(135deg, rgba(54,207,201,.08) 0%, rgba(54,207,201,.02) 100%); }
.case-card-header.bus      { background: linear-gradient(135deg, rgba(255,125,0,.06) 0%, rgba(255,125,0,.02) 100%); }
.case-card-header.douyin   { background: linear-gradient(135deg, rgba(22,93,255,.06) 0%, rgba(54,207,201,.04) 100%); }

.case-card-header .case-client {
  display: flex;
  align-items: center;
  gap: 12px;
}
.case-avatar {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}
.case-avatar.blue  { background: var(--primary); }
.case-avatar.cyan  { background: var(--secondary-cyan); }
.case-avatar.orange { background: var(--secondary-orange); }

.case-client h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

.case-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.case-badge.banxian  { background: rgba(22,93,255,.1);   color: var(--primary); }
.case-badge.dingzhi  { background: rgba(54,207,201,.12);  color: #1BA89D; }
.case-badge.bus      { background: rgba(255,125,0,.1);    color: var(--secondary-orange); }
.case-badge.douyin   { background: rgba(22,93,255,.1);    color: var(--primary); }

/* 卡片主体 */
.case-card-body {
  padding: 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.case-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  flex: 1;
}

/* 指标条 */
.case-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
  margin-bottom: 16px;
}
.case-stat {
  text-align: center;
}
.case-stat strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}
.case-stat span {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* 标签 */
.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.case-tags span {
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-light);
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* CTA 区域 */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0A3DB3 100%);
  padding: 72px 0;
  text-align: center;
  color: var(--white);
}
.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 16px;
  opacity: .85;
  margin-bottom: 8px;
}
.cta-section .btn {
  background: var(--white);
  color: var(--primary);
  font-weight: 600;
  margin-top: 28px;
}
.cta-section .btn:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
}

/* 空状态 */
.cases-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 0;
  color: var(--text-secondary);
}
.cases-empty .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: .4;
}
.cases-empty p {
  font-size: 15px;
}

/* 响应式 */
@media (max-width: 1200px) {
  .stats-strip .container {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .stats-strip {
    margin-top: -20px;
  }
  .stats-strip .container {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-card {
    padding: 20px 16px;
  }
  .stat-card .stat-num {
    font-size: 28px;
  }
  .cases-tabs-section {
    padding: 40px 0 24px;
  }
  .cases-tabs {
    gap: 6px;
  }
  .cases-tab {
    padding: 8px 16px;
    font-size: 13px;
  }
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .case-card-header {
    padding: 16px 20px;
  }
  .case-card-body {
    padding: 20px;
  }
  .case-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .case-stat strong {
    font-size: 18px;
  }
  .cta-section h2 {
    font-size: 24px;
  }
}
@media (max-width: 375px) {
  .stats-strip .container {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .case-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}