:root {
    --main—screen-w: 1600px;
    ---1200-w: 1200px;
    ---600: -600px;
    ---1320-w: 1320px;
    ---800: 800px;
    ---115: 115px;
    ---640: 640px;
    ---480: 480px;
    ---360: -360px;
    ---217: 217px;
    ---100: 100px;
    ---620: 620px;
    ---78: 78px;
    ---110: 110px;
    ---45: 45px;
    ---20: 20px;
    ---60: 60px;
    ---27: 27px;
    ---88: 88px;
}

@media screen and (max-width: 1600px) {
     :root {
        --main—screen-w: 1200px;
        ---1200-w: 1000px;
        ---600: -500px;
        ---1320-w: 900px;
        ---800: 520px;
        ---115: 85px;
        ---640: calc(1200/1600*640px);
        ---480: calc(1200/1600*480px);
        ---360: calc(1200/1600*-360px);
        ---217: calc(1200/1600*217px);
        ---100: calc(1200/1600*100px);
        ---620: calc(1200/1600*620px);
        ---78: calc(1200/1600*78px);
        ---110: calc(1200/1600*110px);
        ---45: 20px;
        ---20: 10px;
        ---60: 45px;
        ---27: 20px;
        ---88: calc(1200/1600*88px);
    }
}

html,
body {
    height: 100%;
}

body {
    background-color: #f5f6fa;
}

.swiper-slide {
    max-width: 100%;
    height: var(---620);
    background: #fff;
    overflow: hidden;
}

container {
    display: block;
    background-color: #f5f6fa;
}

.platform {
    position: relative;
    width: 100%;
    margin: 0 auto;
}

.platform img {
    width: 100%;
    height: 100%;
}

.platform .swiper-pagination-bullet {
    width: 102px;
    height: 5px;
    background: #fff;
    border-radius: 5px;
    opacity: 0.5;
}

.platform .swiper-pagination-bullet-active {
    opacity: 1;
}

.swiper-horizontal>.swiper-pagination-bullets,
.swiper-pagination-bullets.swiper-pagination-horizontal,
.swiper-pagination-custom,
.swiper-pagination-fraction {
    bottom: 83px;
    left: 0;
    width: 100%;
}

.search_box_w {
    height: var(---88);
    width: var(---1200-w);
    position: absolute;
    left: 50%;
    margin-left: var(---600);
    top: -44px;
    z-index: 9;
}

.search_box_w .search_box {
    width: 100%;
    height: 100%;
    position: relative;
}

.search_box_w .search_box input {
    width: 100%;
    height: 100%;
    font-size: 22px;
    background: #FFFFFF;
    box-shadow: 0px 2px 8px 0px rgba(53, 53, 53, 0.1);
    border-radius: 10px;
    text-indent: 35px;
}

.search_box_w .search_box .search_btn {
    position: absolute;
    right: 0;
    top: var(---20);
    width: 140px;
}

.search_box_w .search_box .search_btn button {
    color: #045BFE;
    font-size: 24px;
    font-weight: 600;
    border: none;
}

.search_box_w .search_box .search_btn .icon {
    background: url('../images/search_m.png');
    display: inline-block;
    width: 26px;
    height: 26px;
    background-size: 100%;
    position: relative;
    top: 11px;
}

.s_search_wrap .search_box .search {
    width: 85%;
    height: 100%;
}

.s_search_wrap .search_box a {
    line-height: 50px;
    color: #fff;
    margin-left: 10px;
}

.s_search_wrap .search_box .search_btn {
    width: 15%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-size: 15px;
}

.main {
    background-color: #f4f6fb;
    position: relative;
}

.main .society_classify .society_item {
    width: 49%;
    background-color: #fff;
}

.society_classify {
    width: var(--main—screen-w);
    display: flex;
    justify-content: space-between;
    background-color: #f5f6fa;
    flex-wrap: wrap;
    margin: 0 auto;
    padding: var(---115) 0 0;
}

.text_box_main {
    width: var(---800);
}

.text_box_main .top {
    height: var(---100);
    padding-top: var(---45);
    margin-bottom: 15px;
}

.text_box_main .top .title {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    border-bottom: 4px solid #055CFE;
    padding-bottom: var(---20);
}

.society_classify .list .img_box {
    z-index: 5;
    width: var(---640);
}

.society_classify .list:nth-child(odd) .img_box {
    -webkit-box-ordinal-group: 2;
    -webkit-order: 1;
    -ms-flex-order: 1;
    order: 1;
    margin: 0 var(---360) 0 0;
    height: 100%;
}

.society_classify .picture {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.society_classify .picture .t_bg {
    width: var(---217);
    height: var(---100);
    margin: 20px 30px 0;
}

.society_classify .picture .t_bg img {
    /* width: var(---217);
    height: var(---100);
    margin: 20px 30px 0; */
    width: 100%;
    height: 100%;
}

.society_classify .picture .b_bg {
    width: var(---640);
    height: var(---480);
}

.society_classify .picture .b_bg img {
    width: 100%;
    height: 100%;
    /* width: var(---640);
    height: var(---480); */
    /* max-width: var(---640);
    max-height: var(---480);
    width: auto;
    height: auto;
    display: block; */
}

.society_classify .list .text_box {
    width: var(---1320-w);
    height: var(---620);
    background-color: #fff;
}

.society_classify .list:nth-child(odd) .text_box {
    -webkit-box-ordinal-group: 3;
    -webkit-order: 2;
    -ms-flex-order: 2;
    order: 2;
    display: flex;
    justify-content: flex-end;
    padding-right: var(---78);
}

.society_classify .list:nth-child(even) .text_box {
    -webkit-box-ordinal-group: 2;
    -webkit-order: 1;
    -ms-flex-order: 1;
    order: 1;
    display: flex;
    padding-left: var(---78);
}

.society_classify .list:nth-child(even) .img_box {
    -webkit-box-ordinal-group: 3;
    -webkit-order: 2;
    -ms-flex-order: 2;
    order: 2;
    margin: 0 0 0 var(---360);
    height: 100%;
}

.society_classify .list:nth-child(even) .img_box .picture {
    align-items: flex-end;
}

.society_classify li {
    width: 100%;
    /* padding: 15px; */
    display: flex;
    align-items: center;
    margin-bottom: 100px;
    flex-grow: 1;
}

.list .more {
    margin-top: 32px;
}

.list .more a {
    font-size: 18px;
    width: 180px;
    height: 50px;
    display: inline-block;
    background: #055CFE;
    border-radius: 8px;
    color: #fff;
    line-height: 50px;
    text-align: center;
}

.list .more a i {
    background: url('../images/go.png');
    display: inline-block;
    width: 18px;
    height: 15px;
    background-size: 100%;
}

.list .wrap {
    margin-left: var(---20);
    width: 80%;
}

.list .item {
    display: flex;
    align-items: center;
    padding: 3px var(---20);
    height: var(---60);
    line-height: var(---60);
    border-bottom: 1px dashed #ddd;
    position: relative;
}

.society_classify .text_box_main .item:last-of-type {
    border: none;
}

.list .item::before {
    content: "";
    width: 7px;
    height: 7px;
    background: #aaa;
    border-radius: 50%;
    position: absolute;
    margin-left: -12px;
    top: var(---27);
}

.list .item .text {
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 85%;
    font-size: 18px;
}

.list .item .text .en_t {
    color: #999;
    text-indent: 5px;
}

.list .item .spot {
    display: inline-block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    margin-right: var(---20);
    background: #aaa;
}

.ellipsis {
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

input::placeholder {
    color: #B9C7DF;
}