   /* 头部样式表 */
   
   .header_search {
       /* width: 70%; */
       margin: 64px auto 0 auto;
   }
   
   .right-robot {
       margin-top: 58px
   }
   
   @media screen and (max-width: 768px) {
       .header_search {
           width: 96%;
           margin: 20px auto 0 auto;
       }
   }
   
   .header_search_inputli {
       height: auto;
       width: auto;
       overflow: hidden;
   }
   
   .header_search input {
       outline: none;
       border: none;
   }
   
   .header_search .search_input {
       width: 70%;
       border-radius: 10px;
       color: #838383;
       float: left;
       height: 56px;
       font-size: 18px;
       /* background: url(../images/searchwhite.png) no-repeat; */
   }
   
   @media screen and (max-width: 768px) {
       .header_search .search_input {
           width: 80%;
           background: #fff;
           height: 40px;
           border-radius: 4px 0px 0px 4px;
       }
   }
   
   .search_input .input_text {
       float: left;
       width: 100%;
       height: 40px;
       font-size: 18px;
       color: #cbcbcb;
       border-left: 1px solid #cbcbcb;
       padding-left: 18px;
   }
   
   @media screen and (max-width: 768px) {
       .search_input .input_text {
           width: 68%;
           padding-left: 10px;
       }
   }
   
   .header_search .search_submit {
       float: left;
       width: 16%;
       height: 40px;
       border-radius: 0 4px 4px 0;
       background: url(./documentsearch.png) no-repeat center center;
       background-color: #fff;
       background-position: center;
   }
   
   @media screen and (max-width: 768px) {
       .header_search .search_submit {
           width: 20%;
           height: 40px;
           background-color: #fff;
           background-position: center;
           background-size: 20px 20px;
       }
   }
   
   .row.no-gutter {
       margin-left: 0;
       margin-right: 0;
   }
   
   .no-gutter>[class*='col-'] {
       padding-right: 0;
       padding-left: 0;
   }