/* Development Timeline Mobile Styles - 小于768px */

/* 移动端时间线主容器 */
.timeline_mobile_container {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding: 2rem 0;
}

/* 移动端时间线项目 */
.timeline_mobile_item {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid #e9ecef;
}

.timeline_mobile_item:last-child {
  border-bottom: none;
}

/* 年份样式 */
.timeline_mobile_year {
  text-align: center;
  margin-bottom: 1rem;
}

.timeline_mobile_year h3 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #084397;
  margin: 0;
  font-family: 'DIN Next LT Pro Light', sans-serif;
  letter-spacing: 1px;
}

/* 内容容器 */
.timeline_mobile_content {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  align-items: flex-start;
}

/* 图片样式 */
.timeline_mobile_image {
  flex: 0 0 120px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  background: #f8f9fa;
}

.timeline_mobile_image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.timeline_mobile_image:hover img {
  transform: scale(1.05);
}

/* 文字内容 */
.timeline_mobile_text {
  flex: 1;
  padding: 0;
}

.timeline_mobile_text h4 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #2c3e50;
  margin: 0 0 0.8rem 0;
  line-height: 1.3;
}

.timeline_mobile_text p {
  font-size: 1.4rem;
  color: #555;
  line-height: 1.5;
  margin: 0;
}

/* 响应式调整 - 更小的屏幕 */
@media (max-width: 480px) {
  .timeline_mobile_container {
    gap: 2.5rem;
    padding: 1.5rem 0;
  }
  
  .timeline_mobile_item {
    gap: 1.2rem;
    padding: 1.5rem 0;
  }
  
  .timeline_mobile_year h3 {
    /* font-size: 2.4rem; */
  }
  
  .timeline_mobile_content {
    gap: 1.5rem;
  }
  
  .timeline_mobile_image {
    flex: 0 0 100px;
    height: 70px;
  }
  
  .timeline_mobile_text h4 {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
  }
  
  .timeline_mobile_text p {
    font-size: 1.3rem;
  }
}

/* 超小屏幕调整 */
@media (max-width: 360px) {
  .timeline_mobile_container {
    gap: 2rem;
    padding: 1rem 0;
  }
  
  .timeline_mobile_item {
    gap: 1rem;
    padding: 1rem 0;
  }
  
  .timeline_mobile_year h3 {
    font-size: 2.2rem;
  }
  
  .timeline_mobile_content {
    gap: 1.2rem;
  }
  
  .timeline_mobile_image {
    flex: 0 0 90px;
    height: 60px;
  }
  
  .timeline_mobile_text h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
  }
  
  .timeline_mobile_text p {
    font-size: 1.2rem;
  }
}