/* 顶部大标题 */
.industry-header-bg {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 120px 0 60px;
  text-align: center;
}
.industry-header-bg h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}

/* 业务概览横向卡片 */
.industry-overview-bar {
  background: #f8f9fa;
  padding: 48px 0 32px 0;
  border-bottom: 1.5px solid #e3e8ee;
}
.industry-overview-cards {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.overview-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 18px rgba(52,152,219,0.08);
  padding: 28px 38px;
  font-size: 1.18rem;
  color: #2563eb;
  font-weight: 600;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  min-width: 180px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.overview-card:hover {
  box-shadow: 0 8px 32px rgba(52,152,219,0.16);
  transform: translateY(-2px) scale(1.03);
}
.overview-index {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 700;
  color: #764ba2;
  background: #e0e7ef;
  border-radius: 50%;
  width: 2.2em;
  height: 2.2em;
  text-align: center;
  line-height: 2.2em;
  margin-right: 12px;
  vertical-align: middle;
}

/* 业务区块交错排版 */
.industry-block {
  padding: 64px 0 48px 0;
  background: #fff;
  border-bottom: 1.5px solid #e3e8ee;
}
.industry-block:last-child {
  border-bottom: none;
}
.industry-block-flex {
  display: flex;
  align-items: flex-start;
  gap: 80px;
  flex-wrap: wrap;
}
.industry-block-text {
  flex: 1 1 340px;
  min-width: 280px;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.industry-block-text h2 {
  font-size: 1.35rem;
  color: #3498db;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 1px;
}
.industry-block-imgs {
  flex: 1 1 480px;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 24px;
}
.industry-img-block {
  width: 480px;
  height: 320px;
  object-fit: cover;
  border-radius: 16px;
  background: #f5f5f5;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* 物流车辆四图排列 */
.industry-block-imgs-vertical {
  flex-direction: column;
  gap: 20px;
  align-items: flex-end;
}
.industry-block-imgs-vehicle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  justify-items: center;
  align-items: center;
  max-width: 680px;
}

/* 确保桌面端保持2x2网格布局 */
@media (min-width: 1101px) {
  .industry-block-imgs-vehicle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 16px;
    justify-items: center;
    align-items: center;
    max-width: 680px;
  }
}
.industry-img-vehicle-vertical {
  width: 320px;
  height: 180px;
  object-fit: cover;
  border-radius: 10px;
  background: #f5f5f5;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.industry-img-vehicle-vertical:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

/* 交错排版：偶数区块反转 */
.industry-block.alt .industry-block-flex {
  flex-direction: row-reverse;
}

/* 业务要点与分组 */
.industry-list, .industry-list-block ul {
  margin: 0 0 12px 0;
  padding-left: 20px;
  color: #333;
  font-size: 1em;
}
.industry-list-block {
  margin-bottom: 10px;
}
.industry-list-block strong {
  color: #1a3a5b;
  font-weight: 600;
}
.industry-extra-desc {
  margin-top: 18px;
  color: #555;
  font-size: 0.98rem;
  line-height: 1.7;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 12px 18px;
}

/* 物流车辆下方三卡片横排 */
.industry-benefit-bar {
  display: flex;
  gap: 24px;
  margin-top: 36px;
  flex-wrap: wrap;
  justify-content: center;
}
.benefit-card {
  background: #f8fafc;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  padding: 22px 18px 18px 18px;
  flex: 1 1 220px;
  min-width: 200px;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.benefit-title {
  font-size: 1.12em;
  color: #764ba2;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.benefit-desc {
  color: #333;
  font-size: 1em;
}

.industry-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  color: #3498db;
  margin-bottom: 36px;
  letter-spacing: 2px;
}
.industry-block-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.industry-block-imgs-center {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.industry-block-text-center {
  max-width: 700px;
  margin: 0 auto 0 auto;
  text-align: center;
  margin-bottom: 0;
}
.industry-block-text-center .industry-list,
.industry-block-text-center .industry-list-block ul {
  text-align: left;
  display: inline-block;
  margin-left: auto;
  margin-right: auto;
}

.industry-block-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-top: 18px;
}
.industry-list-block-group {
  background: #f8f9fa;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(52,152,219,0.06);
  padding: 18px 22px 14px 22px;
  min-width: 220px;
  max-width: 320px;
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.industry-list-block-group strong {
  color: #3498db;
  font-weight: 700;
  font-size: 1.08em;
}

/* 小标题样式 */
.industry-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2c3e50;
  text-align: center;
  margin: 24px 0 20px 0;
  letter-spacing: 1px;
}

.industry-block-flex-vehicle {
  align-items: center;
}
.industry-block-text-vehicle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}
.industry-block-imgs-vehicle img {
  margin: 0 auto;
}
.industry-block-groups-row {
  display: flex;
  flex-direction: row;
  gap: 24px;
  flex-wrap: nowrap;
  justify-content: center;
}

.industry-img-1180-1145 {
  width: 480px;
  height: 466px;
  object-fit: cover;
  border-radius: 16px;
  background: #f5f5f5;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.industry-img-1027-1017 {
  width: 480px;
  height: 475px;
  object-fit: cover;
  border-radius: 16px;
  background: #f5f5f5;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.industry-block-flex-vehicle-center {
  justify-content: center;
  gap: 40px;
}

/* 平板端样式 */
@media (max-width: 1100px) and (min-width: 701px) {
  .industry-overview-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    justify-items: center;
    max-width: 900px;
    margin: 0 auto;
  }
  .overview-card {
    min-width: 160px;
    max-width: 280px;
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 1100px) {
  .industry-block-flex {
    flex-direction: column;
    gap: 32px;
  }
  .industry-block.alt .industry-block-flex {
    flex-direction: column;
  }
  .industry-block-imgs, .industry-block-imgs-vertical {
    align-items: center;
  }
  .industry-img-block {
    width: 98vw;
    max-width: 480px;
    height: auto;
    min-height: 160px;
  }
  .industry-block-imgs-vehicle {
    grid-template-columns: 1fr;
    gap: 12px;
    max-width: 98vw;
  }
  .industry-img-vehicle-vertical {
    width: 98vw;
    max-width: 320px;
    height: 160px;
  }
  .industry-title { font-size: 1.3rem; margin-bottom: 18px; }
  .industry-block-imgs-center { gap: 12px; margin-bottom: 18px; }
  .industry-block-text-center { max-width: 98vw; }
  .industry-block-groups { flex-direction: column; gap: 12px; align-items: center; }
  .industry-list-block-group { max-width: 98vw; min-width: 0; }
  .industry-block-flex { flex-direction: column; gap: 32px; }
  .industry-block-imgs-vertical { align-items: center; }
  .industry-block-groups-row {
    flex-direction: column;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
  }
  .industry-block-imgs-vehicle { gap: 12px; }
  .industry-img-1180-1145, .industry-img-1027-1017 {
    width: 98vw;
    max-width: 480px;
    height: auto;
    min-height: 160px;
  }
  .industry-block-flex-vehicle-center { gap: 16px; }
}
@media (max-width: 700px) {
  .industry-header-bg { padding: 60px 0 30px; }
  .industry-header-bg h1 { font-size: 1.3rem; }
  .industry-overview-bar { padding: 24px 0 12px 0; }
  .industry-overview-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    padding: 0 20px;
  }
  .overview-card { 
    padding: 18px 24px; 
    font-size: 1.05rem; 
    width: 90%;
    max-width: 300px;
    min-width: 0;
    justify-content: center;
  }
  .industry-block { padding: 32px 0 24px 0; }
  .industry-block-text h2 { font-size: 1.08rem; margin-bottom: 12px; }
  .industry-block-imgs, .industry-block-imgs-vertical { gap: 10px; }
  .industry-benefit-bar { gap: 10px; margin-top: 18px; }
  .industry-block-text { max-width: 100%; }
  .industry-img-block { max-width: 98vw; }
  .industry-block-imgs-vehicle {
    grid-template-columns: 1fr;
    gap: 8px;
    max-width: 98vw;
  }
  .industry-img-vehicle-vertical { 
    max-width: 98vw;
    height: 140px;
  }
  .industry-block-flex { gap: 18px; }
  .industry-title { font-size: 1.08rem; margin-bottom: 10px; }
  .industry-block-imgs-center { gap: 6px; margin-bottom: 10px; }
  .industry-block-groups { gap: 6px; }
  .industry-list-block-group { padding: 10px 8px; }
  .industry-block-flex { gap: 18px; }
  .industry-block-imgs-vertical { gap: 10px; }
  .industry-block-groups-row { gap: 6px; }
  .industry-block-imgs-vehicle { gap: 6px; }
  .industry-img-1180-1145, .industry-img-1027-1017 { max-width: 98vw; }
  .industry-block-flex-vehicle-center { gap: 6px; }
}