.chanpin .zb30cbsub-menu {
     display: none;
 }
 
 .my_banner {
     width: 100%;
     max-width: 1920px;
     height: 700px;
     background: url('../images/chanpinzhongxin/banner.jpg') center center no-repeat;
     background-size: cover;
     margin-bottom: 100px;
 }
 
 .my_banner_con {
     width: 1199px;
     margin: 0 auto;
     height: 700px;
     display: flex;
     justify-content: space-between;
 }
 
 .my_banner_con a {
     display: block;
 }
 
 .my_banner_con div {
     width: 300px;
     position: relative;
     overflow: hidden;
     height: 700px;
 }
 
 .my_banner_con div img {
     max-width: 100%;
 }
 
 .my_banner_con a img:first-child {
     position: absolute;
     top: -110%;
     left: 0;
     transition: all .3s ease;
     -webkit-transition: all .3s ease;
     -moz-transition: all .3s ease;
     -ms-transition: all .3s ease;
     -o-transition: all .3s ease;
 }
 
 .my_banner_con a img:last-child {
     position: absolute;
     top: 0;
     left: 0;
     transition: all .3s ease;
     -webkit-transition: all .3s ease;
     -moz-transition: all .3s ease;
     -ms-transition: all .3s ease;
     -o-transition: all .3s ease;
 }
 
 .my_banner_con>a:hover img:first-child {
     top: 0;
 }
 
 .my_banner_con>a:hover img:last-child {
     top: 100%;
 }
 
 @media screen and (max-width:1024px) {
     .my_banner {
         height: 591.5px;
     }
     .my_banner_con {
         width: 100%;
         display: block;
         height: 591.5px;
         box-sizing: border-box;
     }
     .my_banner_con div {
         width: 25%;
         float: left;
         height: 591.5px;
     }
 }
 
 @media screen and (max-width:768px) {
     .my_banner {
         height: 442px;
     }
     .my_banner_con {
         height: 442px;
     }
     .my_banner_con div {
         height: 442px;
     }
 }
 
 @media screen and (max-width:650px) {
     .my_banner {
         height: auto;
     }
     .my_banner_con {
         height: auto;
     }
     .my_banner_con a {
         margin: 10px 0;
     }
     .my_banner_con div {
         height: 437.5px;
         width: 50%;
     }
 }
 
 @media screen and (max-width:400px) {
     .my_banner_con div {
         height: 430.5px;
     }
 }
 
 .chanp_con {
     width: 100%;
     max-width: 1350px;
     margin: 50px auto;
 }
 
 .chanp_con>div {
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     box-sizing: border-box;
     padding: 15px;
     text-align: left;
     border: 1px solid #ccc;
     height: 297px;
     margin: 7px;
     width: 18%;
 }
 
 .chanp_con_pic {
     width: 100%;
     max-width: 280px;
     height: 180px;
     overflow: hidden;
     display: flex;
     justify-content: center;
     align-items: center;
     text-align: center;
 }
 
 .chanp_con_pic img {
     max-width: 100%;
 }
 
 .chanp_con_info h3 {
     font-size: 14px;
     color: #000;
     font-weight: 555;
     display: -webkit-box;
     -webkit-box-orient: vertical;
     /* 表示盒子对象的子元素的排列方式 */
     -webkit-line-clamp: 1;
     /* 限制文本的行数，表示文本第多少行省略 */
     text-overflow: ellipsis;
     /*  打点展示 */
     overflow: hidden;
     /*超出部分进行隐藏*/
 }
 
 .chanp_con_info span {
     font-size: 12px;
     color: #929292;
 }
 
 .chanp_con_info p {
     font-size: 13px;
     color: #666;
     display: -webkit-box;
     -webkit-box-orient: vertical;
     /* 表示盒子对象的子元素的排列方式 */
     -webkit-line-clamp: 2;
     /* 限制文本的行数，表示文本第多少行省略 */
     text-overflow: ellipsis;
     /*  打点展示 */
     overflow: hidden;
     /*超出部分进行隐藏*/
 }
 
 @media screen and (max-width:1024px) {
     .chanp_con {
         padding: 10px;
         box-sizing: border-box;
     }
     .chanp_con>div {
         width: 33%;
         float: left;
         margin: 8px 0;
     }
     .chanp_con_pic {
         width: 100%;
         max-width: 100%;
         height: 180px;
         overflow: hidden;
         display: flex;
         justify-content: center;
         align-items: center;
         text-align: center;
     }
 }
 
 @media screen and (max-width:768px) {
     .chanp_con>div {
         width: 50%;
     }
 }