.topmenu {
  
  top: 0;
  left: 0;
  width: 100%;
 
  background: #004c93;
  display: flex;
 
}

.topcont1 {
  display: flex;
 
  width: 1200px;
  height: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: auto;
  font-size: 12px; 
  
}


.topcont2 {
  display: flex;
 
  width: 1200px;
   height: 136px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: auto; 
  
}

.topcont4 {
  display: flex;
 background-color: #f2f2f2;
  width: 1200px;
   height: 240px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: auto; 
  
}
.topcont5 {
  display: flex;
 
  width: 1200px;
   height: 30px;
  display: flex;
  
  margin: auto; 
  
}

.topcont3 {
  display: flex;
 
  width: 1000px;
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: auto;
  font-size: 12px; 
  background-color: #f2f2f2;
}

 
.image {
  max-width: 100%; /* 确保图片不会超过其容器 */
  height: auto; /* 保持图片的宽高比 */
}



.full-width-line {
  position: relative;
  height: 1px; /* 线的高度 */
  background-color: #E3E4E6; /* 线的颜色 */
}
 
.full-width-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%; /* 全屏宽度 */
  height: 1px; /* 线的高度 */
  background-color: #E3E4E6; /* 线的颜色 */