/* 发展历程时间轴样式 */
.history-timeline {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 50px 0;
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.timeline-item {
  text-align: center;
  position: relative;
  flex: 1;
  padding: 0 15px;
}

/* 交错的时间轴项目 */
.timeline-item:nth-child(even) {
  margin-top: 60px;
}

.timeline-item:nth-child(odd) {
  margin-top: -60px;
}

/* 连接线 */
.history-timeline::before {
  content: '';
  position: absolute;
  width: 90%;
  height: 2px;
  background: linear-gradient(90deg, #0072bc22, #ff69b4dd);
  top: 50%;
  left: 5%;
  transform: translateY(-50%);
  z-index: 0;
}

.timeline-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(45deg, #0072bc, #ff69b4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.timeline-year {
  color: white;
  font-size: 24px;
  font-weight: bold;
}

.timeline-content {
  padding: 0 15px;
}

.timeline-content h3 {
  color: #0072bc;
  margin: 15px 0;
  font-size: 18px;
  font-weight: bold;
}

.timeline-content p {
  color: #666;
  font-size: 14px;
  line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .history-timeline {
    flex-direction: column;
    padding: 30px 0;
  }

  .timeline-item {
    margin: 20px 0;
  }

  .timeline-item:nth-child(even),
  .timeline-item:nth-child(odd) {
    margin-top: 0;
  }

  .history-timeline::before {
    width: 2px;
    height: 90%;
    left: 50%;
    top: 5%;
    transform: translateX(-50%);
  }
}

/* 业务范围卡片样式 */
.business-scope {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding: 0 15px;
}

.scope-item {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.scope-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.scope-item h3 {
    color: #3a6ea5;
    font-size: 18px;
    margin: 0;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .business-scope {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .business-scope {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .scope-item {
        padding: 15px;
    }
    
    .scope-item h3 {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .business-scope {
        grid-template-columns: repeat(1, 1fr);
    }
}

.subsidiary-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.subsidiary-card {
  flex: 0 0 30%;
  /* 每个项目占据30%的宽度 */
  box-sizing: border-box;
  margin-bottom: 20px;
}

.subsidiary-card h3 {
  font-size: 18px;
  color: #0072bc;
  margin-bottom: 10px;
}

.content-block p {
  color: #0072bc;
}


.subsidiary-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.subsidiary-list li {
  margin-bottom: 15px;
  /* 增加底部边距 */
}

.subsidiary-list a {
  color: #0072bc;
  text-decoration: none;
  font-size: 18px;
  padding: 10px 15px;
  display: block;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.subsidiary-list a:hover,
.subsidiary-list a.active {
  /* 添加活跃状态样式 */
  background-color: #f0f0f0;
}

.subsidiary-wrapper {
  background: linear-gradient(145deg, #f8f9fa, #ffffff);
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 114, 188, 0.08);
  margin-top: 30px;
}

.subsidiary-list {
  border-radius:12px 0px 0px 12px;
  height: 100%;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 114, 188, 0.1);
  margin-right: 0;
}

.subsidiary-list li {
  margin-bottom: 20px;
}

.subsidiary-list a {
  color: #0072bc;
  text-decoration: none;
  font-size: 16px;
  padding: 15px 20px;
  display: block;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  font-weight: 500;
}

.subsidiary-list a:hover,
.subsidiary-list a.active {
  background: rgba(0, 114, 188, 0.05);
  transform: translateX(5px);
  color: #0072bc;
  border-right: 10px #0072bc solid;
}

.subsidiary-content {
  background: #ffffff;
  padding: 30px;
  border-radius:0px 12px 12px 0px;
  height: 100%;
  min-height: 450px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 114, 188, 0.1);
  margin-left: 0;
}

.subsidiary-detail {
  display: none;
}

.subsidiary-detail.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

.subsidiary-detail h3 {
  color: #0072bc;
  font-size: 24px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid rgba(0, 114, 188, 0.1);
}

.subsidiary-detail p {
  color: #555;
  line-height: 1.8;
  font-size: 16px;
  margin-bottom: 25px;
}

.subsidiary-detail img {
  max-width: 100%;
  height: auto;
  margin-top: 20px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 子公司卡片样式 */
.subsidiary-card {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    height: 100%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.subsidiary-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.subsidiary-card h3 {
    color: #3a6ea5;
    font-size: 18px;
    margin-bottom: 15px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.subsidiary-card .card-body {
    padding: 0;
}

.subsidiary-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.subsidiary-card.active {
    border: 2px solid #3a6ea5;
}

.subsidiary-card .card-img {
    width: 100%;
    border-radius: 8px;
    margin: 10px 0;
}

.subsidiary-card .read-more {
    display: inline-block;
    color: #3a6ea5;
    text-decoration: none;
    font-size: 14px;
    margin-top: 10px;
}

.subsidiary-card .read-more:hover {
    text-decoration: underline;
}

/* 模态框样式 */
.modal-content {
    border-radius: 12px;
}

.modal-header {
    border-bottom: 1px solid #eee;
    padding: 20px;
}

.modal-body {
    padding: 20px;
}

.modal-body p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}