.sections{ width: 100%; position: relative;
    overflow: hidden;background:#ffffff;min-height: 100vh;}
.sections img{ display: block; max-width: 100%;}
.section{ width: 100%; position: relative;}

.section1{ width:66.5vw;height: auto;margin: 0 auto;padding-top:1.8vw;}
.section1 .nav_box{width: 80%;margin:2.5vw auto;display: flex;justify-content: space-between;}
.section1 .nav_title{width: 80%;margin:2.5vw auto;display: flex;text-align: center;}
.section1 .nav_title_item{width: 100%;text-align: center;display: none;font-size: 2vw;font-weight: bold;color: #000;}
.section1 .nav_title_item.active{width: 100%;text-align: center;display: block;}
.section1 .nav_box_item{display: flex;justify-content: center; flex-direction: column;align-items: center;cursor: pointer;}
.section1 .nav_box_item .nav_box_item_pic{width: 3.6vw;}
.section1 .nav_box_item .nav_box_item_pic img{width: 100%;}
.section1 .nav_box_item .nav_box_item_pic1{display: block;}
.section1 .nav_box_item .nav_box_item_pic2{display: none;}
.section1 .nav_box_item .nav_box_item_name{font-size: 1vw;line-height:2;}
.section1 .nav_box_item.active .nav_box_item_name{font-size: 1vw;line-height:2;color:#869eee;}
.section1 .nav_box_item.active .nav_box_item_pic1{display: none;}
.section1 .nav_box_item.active .nav_box_item_pic2{display: block;}

.info_search{width: 24.2vw;height: 2.1vw;margin: 2vw auto;position: relative;margin-bottom:15px;border: 1px solid #b3b3b3;border-radius: 25px;}
.info_search .search-input {
    border: 0 none;
    color: #787878;
    height: 2.1vw;
    line-height: 2.1vw;
    margin: 0;
    padding-right: 2.1vw;
    text-indent: 1em;
    width: 22.1vw;
    outline: none;
    border-radius: 25px;
    font-size: 0.8vw;
    background: #f1f4f9;
}
.info_search .btn-go {
    position: absolute;
    top: 0.4vw;
    right: 1vw;
    width: 1.3vw;
    height: 1.3vw;
    border: 0 none;
    border-radius: 0;
    display: block;
    background: url(../feature/info_search_b.png) center center no-repeat;
    background-size: 100%;
    text-indent: 5em;
}

.section1 .section1_title{width: 100%;display: flex;align-items: center;justify-content: center;font-size: 2.1vw;font-weight: bold; color: #010101;}
.section1 .section1_des{width: 100%;display: flex;align-items: center;justify-content: center;font-size: 1.6vw;color: #525252;line-height: 1.8;}
.section1 .item_body{width:100%;position: relative;display: flex;justify-content: space-between;flex-wrap: wrap;}
.section1 .item_body a{width: 100%;}
.section1 .item_body_item{width: 100%;display: flex;justify-content: space-between;position: relative;align-items: center;flex-wrap: wrap;cursor: pointer;margin-bottom: 1vw;border-radius: 0.8vw;}
.section1 .item_body_item .item_body_item_sub{width: 94%;margin-left:3%;background: #f2f4fa;max-height: 0;overflow: hidden;}
.section1 .item_body_item .item_body_item_sub.active{max-height: unset;}
.section1 .item_body_item .item_body_item_sub_item{width: 100%;display: flex;justify-content: space-between;padding:1vw 0;position: relative;align-items: center;border-top: 1px solid #c2c5cc;}
.section1 .item_body_item:nth-child(n){background: #f2f4fa;}
.section1 .item_body_item:nth-child(2n+1){background: #f2f4fa;}
.section1 .item_body_title{background: #23a5df!important;color: #fff!important;font-size: 0.9vw;font-weight: bold;}
.section1 .item_body_item:after{content: '';border-bottom: 1px solid #dbdbdb;width: 97%;position: absolute;left: 50%;transform: translateX(-50%);bottom: 0;z-index: -1;}
.section1 .item_body_item .item_product{font-size: 0.8vw;color: #282a30;padding-right: 2vw;width: 6vw;display: flex;align-items: center;}
.section1 .item_body_item .item_product span{width: 0.8vw;margin-right: 0.5vw;}
.section1 .item_body_item .item_product a{font-size: 0.8vw;color: #6285ed;}
.section1 .item_body_item .item_time{font-size: 0.8vw;color: #282a30;padding-right: 2vw;width: 7vw;}
.section1 .item_body_item .item_product1{font-size: 0.8vw;color: #282a30;width: 10vw;padding-left: 0.5vw;padding-right: 1vw;}
.section1 .item_body_item .item_product select{font-size: 0.9vw;cursor: pointer;
    background-color: #f1f1f1;
    color: #010101;
    padding: 0.5vw 0.8vw;
    border: 1px solid #fff;
    font-weight: bold;
    border-radius: 4px;}
.section1 .item_body_item .item_product select option{font-size: 0.9vw;background: #23a5df;color: #fff;padding: 1vw 2vw;cursor: pointer;height: 5vw;}
.section1 .item_body_item .item_product select option:hover{font-size: 0.9vw;background: #23a5df;color: #fff;padding: 1vw 2vw;cursor: pointer;}

.section1 .item_body_item .item_title{font-size: 0.8vw;color: #010101;width: 48.2vw;padding:1vw 2vw;display: flex;align-items: center;}
.section1 .item_body_item .item_title span{margin-left: 0.5vw;transition: all 0.3s ease-in-out;width: 0.7vw;}
.section1 .item_body_item.active .item_title span{transform: rotate(180deg);}
.section1 .item_body_item .item_title a{color: #282a30;}
.section1 .item_body_item .item_body_item_sub_item .item_title{padding:0 1vw;}
.section1 .item_body_item .item_icon{width:6.4vw; height:1.4vw; color: #000;margin-right: 2vw;display: flex;justify-content: center;cursor: pointer;}
.section1 .item_body_title .item_icon{background: none;font-size: 0.9vw;font-weight: bold;color: #fff;display: flex;justify-content: center;}
.section1 .item_body_item:hover{}
.section1 .item_body_item:hover .item_time{color: #282a30;}
.section1 .item_body_item:hover .item_title{color: #282a30;}
.section1 .item_body_item:hover .item_title a{color: #282a30;}

.section1 .item_body_item .item_body_item_sub .item_time{color: #666;font-size: 0.8vw;}
.section1 .item_body_item .item_body_item_sub .item_title{color: #666;font-size: 0.8vw;}
.section1 .item_body_item .item_body_item_sub .item_title a{color: #666;font-size: 0.8vw;}

.section1 .item_body_item:hover .item_body_item_sub .item_time{color: #666;}
.section1 .item_body_item:hover .item_body_item_sub .item_title{color: #666;}
.section1 .item_body_item:hover .item_body_item_sub .item_title a{color: #666;}

.section1 .item_body_title .item_title{font-size: 0.8vw;color: #fff;}
.section1 .item_body_title .item_product{font-size: 1vw;color: #fff;}
.section1 .item_body_title:hover .item_title{font-size: 0.8vw;color: #fff;}
.section1 .item_body_title:hover .item_product{font-size: 1vw;color: #fff;}
.section1 .item_body_item:hover:after{border-bottom: 1px solid #0090e2;}
.section1 .item_body_item:hover .item_icon{}
.section1 .item_body_title:hover .item_icon{background: none;font-size: 0.9vw;font-weight: bold;color: #fff;}
.section1 .item_pages{display: flex;justify-content: flex-end;font-size: 1vw;margin: 2vw 0 3vw;}
.section1 .item_pages .item_prev_page{width: 2vw;height: 2vw;margin: 0 0.3vw;display: none;}
.section1 .item_pages .item_next_page{width: 2vw;height: 2vw;margin: 0 0.3vw;display: none;}
.section1 .item_pages .item_prev_page a,.section1 .item_pages .item_next_page a{display: flex;align-items: center;justify-content:center;width: 100%;height: 100%;font-size: 1vw;color: #23a5df;}
.section1 .item_pages .item_page{width: 2vw;height: 2vw;margin: 0 0.3vw;border: 1px solid #23a5df;border-radius: 2vw;}
.section1 .item_pages .item_page a{display: flex;align-items: center;justify-content:center;width: 100%;height: 100%;font-size: 1vw;color: #23a5df;}
.section1 .item_pages .item_page:hover{background: #23a5df;color: #1c1c1c;border-radius: 2vw;border: 1px solid #23a5df;}
.section1 .item_pages .item_page:hover a{color: #1c1c1c;}
.section1 .item_pages .item_page.active{background: #23a5df;color: #1c1c1c;border-radius: 2vw;border: 1px solid #23a5df;}
.section1 .item_pages .item_page.active a{color: #fff;}

@media screen and ( max-width : 800px){
    .section1{ width:93.3vw;height: auto;margin: 0 auto;padding-top:10.3vw;}
    .section1 .section1_title{width: 100%;height: 9.3vw; display: flex;align-items: center;justify-content: center;font-size: 5.3vw;font-weight: bold;}
    .section1 .section1_des{font-size: 4vw;}
    .section1 .item_body{width: 100%;margin:4vw auto;position: relative;display: flex;justify-content: space-between;flex-wrap: wrap;}
    .section1 .item_body a{width: 100%;}
    .section1 .item_body_item{width: 100%;display: flex;justify-content: space-between;position: relative;flex-wrap: wrap;}
    .section1 .item_body_item:after{content: '';;width: 100%;position: absolute;left: 50%;transform: translateX(-50%);bottom: 0;z-index: -1;}
    .info_search{width: 85%; height: 8.4vw;margin: 5vw auto;}
    .info_search .search-input{width: calc(100% - 2.3vw);height: 8vw;line-height: 8vw;font-size: 3.5vw;}
    .info_search .btn-go {
        position: absolute;
        top: 2vw;
        right: 4vw;
        width: 5.3vw;
        height: 5.3vw;
    }
    .section1 .nav_box{width: 100%;}
    .section1 .nav_box_item .nav_box_item_pic{width: 9.6vw;}
    .section1 .nav_box_item .nav_box_item_name{font-size: 3vw;}
    .section1 .nav_box_item.active .nav_box_item_name{font-size: 3vw;}
    .section1 .item_body_item .item_body_item_sub_item{padding: 2.5vw 0;}
    .section1 .item_body_item .item_top{width: 100%;height: 6.7vw; display: flex;justify-content: space-between;align-items: center;background: #e4e7eb;}
    .section1 .item_body_item .item_product{font-size: 3.7vw;color: #010101;padding-left: 2vw;width: auto;}
    .section1 .item_body_item .item_product1{font-size: 3.7vw;color: #010101;padding-left: 0.5vw;padding-right: 1vw;width: auto;}
    .section1 .item_body_item .item_product select{font-size: 3.7vw;cursor: pointer;width:25vw;background-color: #000000;color: #fff;padding: 0.5vw 0.8vw;border: 1px solid #fff;font-weight: bold;border-radius: 4px;}
    .section1 .item_body_item .item_product select option{font-size: 3.7vw;background: #23a5df;color: #fff;padding: 1vw 2vw;cursor: pointer;height: 5vw;}
    .section1 .item_body_item .item_product select option:hover{font-size: 3.7vw;background: #23a5df;color: #fff;padding: 1vw 2vw;cursor: pointer;}
    .section1 .item_body_item .item_title{font-size: 3.2vw;color: #010101;width:73%;padding:3.5vw 2vw;line-height: 1.6;}
    .section1 .item_body_item .item_title .item_title_icon{float: left; width: 6vw;margin-right: 2vw;}
    .section1 .item_body_title .item_title{color: #fff;}
    .section1 .item_body_title .item_product{color: #fff;}
    .section1 .item_body_item.active:after{border-bottom: 1px solid #0090e2;}
    .section1 .item_pages{display: flex;justify-content: center;font-size: 1vw;margin: 4vw 0 8vw;}
    .section1 .item_pages .item_prev_page{width: 7.7vw;height: 7.7vw;margin: 0 0.3vw;}
    .section1 .item_pages .item_next_page{width: 7.7vw;height: 7.7vw;margin: 0 0.3vw;}
    .section1 .item_pages .item_prev_page a,.section1 .item_pages .item_next_page a{display: flex;align-items: center;justify-content:center;width: 100%;height: 100%;font-size: 4vw;color: #000;}
    .section1 .item_pages .item_page{width: 7.7vw;height: 7.7vw;margin: 0 1vw;border-radius: 7.7vw;}
    .section1 .item_pages .item_page a{display: flex;align-items: center;justify-content:center;width: 100%;height: 100%;font-size: 4vw;color: #23a5df;}
    .section1 .item_pages .item_page:hover{background:#23a5df;color: #fff;border-radius: 7.7vw;}
    .section1 .item_pages .item_page:hover a{color: #fff;}
    .section1 .item_pages .item_page.active{background:#23a5df;color: #fff;border-radius: 7.7vw;}
    .section1 .item_pages .item_page.active a{color: #fff;}
    .section1 .item_body_item .item_body_item_sub{width: 96%;margin-left:2%;background: #f2f4fa;max-height: 0;overflow: hidden;}
    .section1 .item_body_item .item_title span {margin-left: 1vw;transition: all 0.3s ease-in-out;width: 4.7vw;}
    .section1 .item_body_item.active .item_title span{transform: rotate(180deg);}
    .section1 .item_body_item .item_body_item_sub_item{display: flex;flex-wrap: wrap;justify-content: space-between;}
    .section1 .item_body_item .item_body_item_sub{display: flex;flex-wrap: wrap;justify-content: space-between;}
    .section1 .item_body_item .item_body_item_sub .item_time{color: #666;font-size: 3vw;width:17vw; }
    .section1 .item_body_item .item_body_item_sub .item_product{color: #666;font-size: 3vw;width:20vw; }
    .section1 .item_body_item .item_body_item_sub .item_product a{color: #6285ed;font-size: 3vw;width:20vw; }
    .section1 .item_body_item .item_body_item_sub .item_product span{width: 3vw;}
    .section1 .item_body_item .item_body_item_sub .item_title{color: #666;font-size: 3.3vw;width: 100%;margin-bottom: 1vw;}
    .section1 .item_body_item .item_body_item_sub .item_title a{color: #666;font-size: 3.3vw;}
    .section1 .nav_title {width: 80%;margin: 4.5vw auto;display: flex;text-align: center;}
    .section1 .nav_title_item {width: 100%;text-align: center;display: none;font-size: 4vw;font-weight: bold;color: #000;}

}
@media screen and ( max-width : 320px){

}