.product_kuang {
     width: 90%;
     height: auto;
     margin: 5px auto;
     padding-top: 70px;
 }

 .product_navber_left {
     width: 100%;
     height: auto;
     background-color: white;
     padding-top: 20px;
     padding-bottom: 35px;
     position: relative;
     height: fit-content;
 }

 .product_navber_left_box {
     width: 100%;
     height: auto;
     min-height: 100%;
 }

 .product_left_box {
     width: 100%;
     height: auto;
 }

 .product_item {
     width: 90%;
     padding-left: 10%;
     height: auto;
 }

 .product_item_title {
     width: 100%;
     height: 30px;
     line-height: 30px;
     display: flex;
     align-items: center;
     justify-content: space-between;
 }

 #product_item_title {
     font-weight: 700;
 }

 .product_item_title a {
     color: black;
     font-size: 14px;
     padding-right: 5px;
 }
 .product_item_title a:hover{
    color: rgb(17, 128, 251);
}
 .product_item_title_img {
     height: 35%;
     width: auto;
     object-fit: contain;
     margin-right: 5px;
     transform: rotate(180deg);
     transition: transform 0.3s ease; 
 }

 .imgXZ {
    transition: transform 0.3s ease; 
     transform: rotate(0deg);
 }

 .product_item_erji {
     width: 90%;
     height: auto;
     margin: 0 auto;
     overflow: hidden; /* 确保内容不会溢出，方便动画效果的实现 */
     max-height: 0; /* 初始状态下元素的高度为 0，达到隐藏的效果 */
     transition: max-height 0.5s ease; /* 添加过渡效果，时长为 0.5 秒，动画效果为 ease */
 }
 .erjiYC {
    max-height: 500px;
    transition: max-height 1s ease; 
}
.product_item_erji a{
    color: black;
    font-size: 12px;
    padding: 5px 0;
    padding-left: 5px;
}
.product_item_erji a:hover {
    color: rgb(17, 128, 251);
}
 .product_erji_item {
     width: 90%;
     min-height: 30px;
     height: auto;
     line-height: 20px;
     font-size: 12px;
     display: flex;
     align-items: center;
     color: black;
     padding: 3px 0;
 }
.product_erji_item a:hover{
    color: rgb(17, 128, 251);
}
 .product_erji_item img {
     height: 63%;
     max-height: 20px;
     object-fit: contain;
     width: auto;
 }

 .product_erji_item a {
     color: inherit;
 }

 #rongqi{
    padding-bottom: 40px;
}

 .product_navber_right {
     width: 100%;
     height: auto;
     padding-top: 20px;
     padding-bottom: 20px;
     background-color: white;
     margin: 0 auto;
     margin-top: 30px;
 }

 .news_content {
     width: 100%;
     height: auto;
     display: flex;
     flex-wrap: wrap;
 }

 .news_content_right {
     width: 100%;
     height: auto;
 }

 .news_content_left {
     width: 100%;
     height: auto;
     background-color: white;
     margin-top: 30px;
     padding: 20px 0;
     display: none;
 }
 .product_fanhui{
    position: fixed; 
    right: 5%;
    width: 30px;
    height: 20px; 
    bottom: 12%;  
}
.product_fanhui a{
    display: block;
    width: 100%;
    height: 100%; 
}
.product_fanhui img{
    width: 100%;
    height: auto;
}
 .news_left_box {
     width: 90%;
     height: auto;
     margin: 0 auto;
     padding: 10px 3%;
 }

 .product_erji_title {
     width: 90%;
     margin: 0 auto;
     min-height: 30px;
     line-height: 30px;
     font-size: 28px;
     font-weight: 700;
     padding: 15px 0;

 }

 .news_left_ss {
     width: 100%;
     height: auto;
     height: 40px;
     border: 1px solid #ccc;
     display: flex;
 }

 .news_left_ss input {
     padding: 0 5px;
     width: 100%;
     height: 100%;
     border: 0;
 }

 .news_gonggao_title {
     width: 90%;
     margin: 0 auto;
     min-height: 60px;
     height: auto; 
     display: flex;
     align-items: center; 
     padding-left: 10%;
     font-size: 22px;
     font-weight: 700;
 }

 .news_gongao_content {
     width: 80%;
     height: auto;
     margin: 0px auto;
     margin-bottom: 20px;
 }

 .news_cont_title {
     width: 100%;
     height: auto;
     min-height: 30px;
     height: auto;
     display: flex;
     flex-wrap: nowrap;
     align-items: center;
     color: rgb(17, 128, 251);
     align-content: center;
     font-size: 14px;
     white-space: nowrap;
     overflow: hidden;
 }

 .news_cont_title img {
     max-height: 15px;
     padding-right: 5px;
     object-fit: contain;
 }

 .news_cont_title a {
     display: block;
     width: 100%;
     white-space: nowrap;
     /* 防止文本换行 */
     overflow: hidden;
     /* 隐藏溢出的内容 */
     text-overflow: ellipsis;
     /* 显示省略号 */
     color: rgb(17, 128, 251);
 }

 .product_erji_date {
     width: 90%;
     height: auto;
     margin: 0 auto;
 }

 .product_erji_date span {
     padding-right: 20px;
     font-size: 12px;
 }

 .product_erji_content img {
     max-width: 100%;
     padding: 10px 0;
 }

 .product_erji_content {
     width: 90%;
     margin: 0 auto;
     height: auto;
     padding-top: 20px;
 }

 .product_erji_content p {
     width: 100%;
     padding: 8px 0; 
 }

 .product_navber_right ul {
     width: 90%;
     /* min-height: 85vh; */
     height: auto;
     margin: 0 auto;
     line-height: 20px;
     font-size: 18px;
 }

 .product_erji_video {
     padding: 15px 0;
     width: 90%;
     height: auto;
     margin: 0 auto;
 }

 .product_erji_video video {
     width: 100%;
     height: auto;
 }

 .product_navber_right ul li {
     min-height: 30px;
     line-height: 30px;
     list-style-type: circle;
     list-style-type: disc;  
     padding-top: 25px;
     padding-bottom: 5px;
     border-bottom: 1px solid #ccc;
     list-style-position: inside;
     /* 点在 li 内部 */
 }

 .product_navber_right ul a {
     color: black;
 }
 .jiantouspan{ 
    float: right;
    display: none;
}
 .zhankai_daohang {
     width: 100%;
     height: 30px;
     line-height: 30px;
     background-color: white;
     padding-top: 20px;
     padding-bottom: 20px;
 }

 .product_shouqi {
     display: none;
 }

 .product_navber_left,
 #product_shouqi_img,
 .product_navber_right {
     transition: all 0.3s ease;
     /* 可以根据需要调整过渡时间和缓动函数 */
 }

 .daohang {
     width: 90%;
     height: auto;
     margin: 0 auto;
     padding: 20px 0;
     font-size: 14px;
 }

 .daohang a {
     color: rgb(17, 128, 251);
 }
.dataspan1{
    color: #778299;
}
.product_erji_bottom{
    width: 100%;
    height: 40px;
    padding: 10px 0;
    margin: 0 auto;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}
.proder_bottom_page{
    height: 100%;
    display: flex;
    align-items: center;
    width: auto;
    width: fit-content;
    padding: 0 5px;
    max-width: 45%;
}
#prevItem{
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    color: black;
}
#nextItem{
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    color: black;
    justify-content: flex-end;
}
#prevItem:hover{
    color: rgb(17, 128, 251);
}
#nextItem:hover{
    color: rgb(17, 128, 251);
}
#prevItem span,
#nextItem span{
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.prev_lefy:before {
    content: "\2190";
    font-size: 20px;
}
.prev_right:after{
    overflow: visible;
    content: "\2192";
    font-size: 20px;
}
.proder_bottom_return{
    display: none;
}
.rongqi_title{
    font-weight: 700;
    padding-top: 30px;
}
 @media (min-width:768px) {
    .product_item_erji a{
        padding-left: 10px;
    }
     .tooltip {
         position: absolute;
         background-color: rgba(0, 0, 0, 0.8);
         border: 1px solid #ccc;
         padding: 10px;
         border-radius: 5px;
         box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
         display: none;
         z-index: 10;
         color: white;
         max-width: 80%;
         /* 设置一个合理的最大宽度，可根据需要调整 */
         white-space: wrap;
         /* 防止文本换行 */
     }

     .tooltip::after {
         content: '';
         position: absolute;
         top: 100%;
         left: 50%;
         margin-left: -5px;
         border-width: 5px;
         border-style: solid;
         border-color: rgba(0, 0, 0, 0.8) transparent transparent transparent;
     }

     .news_cont_title {
         margin: 10px;
     }

     .news_cont_title:hover {
         cursor: pointer;
     }

    .jiantouspan{
        display: block;
        font-size: 12px;
        color: #ccc;
    }
    .jiantouspan span{
        padding-left: 20px;
    }
    .product_fanhui{
        position: fixed;
        right: 19%;
        width: 40px;
        height: auto; 
        bottom: 12%;  
        z-index: 999;
    }
    .product_erji_item {
        padding: 3px 5px;
    }
     .product_navber_left_box {
         overflow: auto;
         width: 100%;
         height: 100%;
         max-height: 95vh;
         padding-bottom: 5vh;
         overflow-x: hidden;
     }

     .product_erji_content p {
         width: 100%;
         padding: 8px 0;
     }

     .product_navber_right ul {
         width: 90%;
         min-height: auto;
     }

     .product_navber_right ul li {
         padding-left: 0.5%;
     }

     .product_navber_right ul li:hover {
         color: rgb(17, 128, 251);
     }
     .product_navber_right ul li:hover a {
        color: rgb(17, 128, 251);
    } 
    .product_navber_right ul li:hover span {
        color: rgb(17, 128, 251);
    } 
     .news_left_box {
         width: 80%;
     }

     .index_ss_icon {
         width: 60px;
     }

     .product_item_title_img {
         height: 25%;
     }

     .product_item_title {
        width: 90%;
         height: 48px;
         line-height: 48px;
     }

     .product_item {
         padding-left: 15%;
         width: 85%;
     }

     .product_erji_video video {
         width: 80%;
         height: auto;
         display: flex;
     }

     .product_kuang {
         width: 100%; 
         margin-top: 100px;
         display: flex;
         padding: 0;
         margin: 0;
     }
     #rongqi{
        padding-bottom: 60px;
    }
     .product_navber_left {
         max-width: 310px;
         width: 13%;
         min-height: calc(100vh - 115px);
         height: auto;
         position: fixed;
         padding-top: 100px;
         top: 0;
         left: 0;
     }

     .product_navber_right {
         width: 63%;
         margin-top: 0;
         min-height: calc(100vh - 42px);
         margin-left: calc(16%);
         padding: 0;
         position: relative;
     }

     .product_shouqi {
         width: 28px;
         /* 梯形的宽度 */
         height: 80px;
         /* 梯形的高度 */
         background-color: white;
         /* 梯形的颜色 */
         clip-path: polygon(0% 100%, 100% 85%, 100% 15%, 0% 0%);
         /* 定义等边梯形的形状 */
         position: absolute;
         display: block;
         /* bottom: calc(50% - 10px); */
         top: calc(50% - 60px);
         right: -28px;
         display: flex;
         align-items: center;
         justify-content: center;
     }

     .product_shouqi img {
         width: 50%;
         height: 50%;
         object-fit: contain;
         transform: rotate(90deg);
     }

     .news_content {
         width: 90%;
         height: auto;
         margin: 0 auto;
         justify-content: space-between;
     }

     .news_content_right {
         width: 90%;
     }

     .news_content_left {
         width: 18%;
         margin-top: 0;
         position: fixed;
         top: 0;
         padding-top: 110px;
         right: 0;
         min-height: calc(100vh - 95px);
         display: block; 
         z-index: 1;
     }

     .product_erji_content img { 
         max-width: 100%;
     }
     .product_erji_item{
        font-size: 14px;
     }
     .daohang,
     .product_erji_title,
     .product_erji_date,
     .product_erji_content,
     .product_navber_right ul{width: 95%;}
     .daohang{
        padding-top: 115px;
     }
     .product_erji_bottom{
        width: 95%;
        font-size: 14px;
        justify-content: space-between;
        padding-bottom: 20px;
        border-top: 1px solid #ccc;
     }
     .proder_bottom_return{
        display: block;
        width: auto;
        height: auto;
     }
     .proder_bottom_return a{
        font-size: 14px;
        text-align: center;
        cursor: pointer;
        color: #ccc;
        height: 100%;
        padding: 10px 10px;
        border: 1px solid #ccc;
     }
     .proder_bottom_return a:hover{
        color: black;
        border: 1px solid black;
     }
     .prev_lefy:before {
        content: "\2190";
        font-size: 20px;
        padding-right: 5px;
    }
    #prevItem,#nextItem{
        max-width: 160px;
        min-width: 160px;
    }
 }
 @media (min-width:1200px) {
    #prevItem,#nextItem{
        max-width: 300px;
        min-width: 300px;
    }
}