*{
    list-style: none;
}

 .Head-Model1 {
  height: 150px;
  background-color: rgb(20, 68, 106);      
 }

 .Head-Model1-L {
  height: 150px;
  line-height: 150px;
  color: aliceblue;
 }

 .Head-Model1-R {
  height: 150px;
  line-height: 150px;
  color: aliceblue;
  display: flex;
  justify-content: space-around;
  text-align: center;
  font-size: 15px;
 }

 .Head-Model1-L img {
     width: 100%;
     padding: 2%;
 }

 .Head-Model1 .Head-Model1-R a {
     font-size: 15px;
     font-weight: 600;
     text-decoration: none;
     color: aliceblue;
 }

 .Head-Model1 .Head-Model1-R a:hover{
     color: cadetblue;
 }

 .mark, mark {/*这个代码是系统默认写的，我只是把样式替换了**/
 padding: 0px; 
 background-color: #fcf8e3;
 }

 /*==顶部的手机端响应式开始==*/
 @media screen and (max-width:750px) {
     .Head-Model1 {
         height: 77px;
     }
     .Head-Model1-L {
         height: 77px;
         line-height: 77px;
     }
     .Head-Model1-L img {
        width: 100%;
        padding: 2%;
        height: 60%;
      
    }
 }
 /*==顶部的手机端响应式结束==*/