.sinochem-header {
    display: none;
}

/* <1024 */
@media screen and (max-width: 1020px) {

.indexSwiper .swiper-slide img{
height:auto !important;
}
    body {
        padding-top: 0px !important;
    }

    .sinochem-header {
        display: block;
        position: fixed;
        width: 100%;
        z-index: 999;
        inset: 0;
        height: 73px;
        background-color: #fff;
    }

    .header {
        width: 86.98% !important;
    }

    a {
        background-color: transparent;
    }

    a, abbr, acronym, address, applet, area, article, aside, audio, b, base, basefont, bdi, bdo, big, blockquote, body, br, button, canvas, caption, center, cite, code, col, colgroup, command, datalist, dd, del, details, dfn, dialog, dir, div, dl, dt, em, embed, fieldset, figcaption, figure, font, footer, form, frame, frameset, h1, h2, h3, h4, h5, h6, head, header, hr, html, i, iframe, img, input, ins, kbd, keygen, label, legend, li, link, main, map, mark, menu, menuitem, meta, meter, nav, noframes, noscript, object, ol, optgroup, option, output, p, param, pre, progress, q, rp, rt, ruby, s, samp, script, section, select, small, source, span, strike, strong, style, sub, summary, sup, textarea, time, title, track, tt, u, ul, var, video, wbr {
        margin: 0;
        padding: 0;
        border: 0;
        outline: 0;
        vertical-align: baseline;
        background: transparent;
        outline-style: none;
    }

    /* 清除列表样式 */
    dl, ul, ol, menu, li {
        list-style: none
    }

    /* 选定的链接 */
    del, ins, a {
        text-decoration: none;
    }

    a:hover, a:active, a:focus {
        text-decoration: none;
    }

    a {
        outline: none;
        transition: color 0.2s ease 0s;
    }

    /* 自定义样式 */
    .clearfix {
        zoom: 1
    }

    .clearfix:after {
        content: '\20';
        display: block;
        clear: both;
    }


    /*隐藏元素*/
    a, a:link, a:visited, a:focus, a:active {
        text-decoration: none;
        color: #036;
    }

    .fl {
        float: left;
    }

    /*左浮动*/
    .fr {
        float: right;
    }

    /*右浮动*/
    /* 头部 */
    .sinochem-header {
        border-bottom: unset;
    }

    .header {
        width: 86.98%;
        margin: 0 auto;
    }

    /*顶部导航*/
    .header-nav {
        display: none !important;
    }

    .header-101 {
        top: -83.2px;
    }

    .header_fix {
        background: unset;
        box-shadow: unset;
    }

    .header_fix.bgf5 {
        background: rgba(245, 245, 245, .95);
    }

    /* logo */
    .logo {
        padding: 5px 0;
        /* width: 82.24px; */
        /* height: 35.04px; */
        margin-right: unset;

    }

    .logo a {
        display: block;
    }

    .logo a img {
        width: 150px;
    }

    /* 导航 */
    .nav {
        padding-top: unset;
        width: 100%;
        height: 100%;
        overflow-y: scroll;
        background: rgba(255, 255, 255, .95);
        position: fixed;
        top: 0;
        left: 100%;
        transition-duration: .6s;
        z-index: 50;
    }

    .nav_l0 {
        left: 0;
    }

    .close-search-box {
        display: block;
        height: 94.92px;
    }

    .close-search {
        width: 86.98%;
        margin: 0 auto;
    }

    .mobnav-close {
        float: left;
        margin-top: 29.48px;
        width: 15.76px;
        height: 15.76px;
        background: url(../images/nav-close.png) no-repeat center center / cover;
    }

    .mobnav-search {
        float: right;
        margin-top: 20.04px;
        width: 26.56px;
        height: 26.48px;
        background: url(../images/mobb_search.png) no-repeat center center / cover;
    }

    .nav_ul {
        width: 86.98%;
        margin: 0 auto;
    }

    .nav_li {
        float: unset;
        width: 100%;
        margin-bottom: 21.56px;
        border-bottom: 0.03rem solid #1D4F91;
    }

    .navli_tit {
        height: 31.08px;
        line-height: unset;
        margin: 0;
        padding-bottom: 7.64px;
        transform: none;
    }

    .navli_tit:after {
        display: none;
    }

    .navli_tit a {
        display: inline;
        font-size: 16px;
        font-weight: bold;
        color: #1D4F91;
    }

    .jt {
        float: right;
        display: block;
        width: 14.16px;
        height: 6.92px;
        text-align: center;
        font-size: 14.16px;
        color: #1D4F91;
        transform: scaleX(2);
        transform-origin: bottom center;
    }

    .navli_tit_active .jt {
        transform: scaleX(2) rotateZ(180deg);
    }

    .sec_box {
        padding-top: 6.08px;
        box-sizing: unset;
        position: unset;
    }

    .sec_cont {
        width: 100%;
        height: auto;
        margin: 0;
    }

    .sec_nav {
        padding-left: 11.2px;
        width: calc(100% - 11.2px);
    }

    .sec_list {
        float: none;
        width: 100%;
        margin-right: 0;
    }

    .seclist_tit {
        height: 31.08px;
        line-height: unset;
        margin-bottom: 8.36px;
    }

    .seclist_tit a {
        font-size: 16px;
        color: #1D4F91;
        border: none;
    }

    .seclist_jt {
        display: none;
        font-size: unset;
    }

    .seclist_tit:hover a {
        color: #009CDE;
        border-bottom: none;
    }

    .seclist_tit:hover .seclist_jt {
        display: inline-block;
        color: #009CDE;
    }

    /* 三级 */
    .thr_box {
        padding-left: 30.4px;
        width: auto;
        display: none;
    }

    .thr_ul {
        padding-bottom: 10.68px;
    }

    .sec_list:last-child .thr_ul {
        padding-bottom: 0;
    }

    .thr_li {
        line-height: 1.27;
        margin-bottom: 10.68px;
    }

    .thr_li a {
        font-size: 13.88px;
        color: #1D4F91;
    }

    .thr_li a:hover {
        font-weight: unset;
        color: #1D4F91;
        border-bottom-color: transparent;
    }

    .thr_jt {
        display: none;
    }

    .nav_li:nth-child(5) .sec_list {
        width: 100%;
    }

    .nav_li:nth-child(6) .sec_list {
        width: 100%;
    }

    .nav_li:nth-child(7) .sec_list {
        width: 100%;
    }

    /* 展开图片 */
    .sec_img_box {
        display: none;
    }

    /* 展开箭头 */
    .sec_jt {
        display: none;
    }

    /* 底部按钮 */
    .btmbtn_box {
        display: block;
        width: 86.98%;
        margin: 0 auto;
    }

    .btmbtn_text {
        float: left;
        width: 31%;
        margin-right: 2%;
        padding: 9.6px 0 8px;
        line-height: 1.25;
        border-radius: 20px;
        border: 0.03rem solid #1D4F91;
        text-align: center;
    }

    .btmbtn_text:last-child {
        margin-right: 0;
    }

    .btmbtn_text a {
        font-size: 10.68px;
        color: #1D4F91;
    }

    .btmbtn_text:hover {
        background: #1D4F91;
    }

    .btmbtn_text:hover a {
        color: #fff;
    }

    /* 移动端右侧盒子 */
    .btn-box {
        display: block;
        padding-top: 22px;
    }

    .btn-search,
    .btn-en,
    .btn {
        float: left;
    }

    .btn-search {
        width: 26.56px;
        height: 26.48px;
        background: url(../images/mob-search.png) no-repeat center center / cover;
        margin: 0 14.12px 0 0;
    }

    .btn-en {
        padding-top: 3.96px;
        line-height: 1.138;
        font-size: 19.2px;
        color: #fff;
        margin-right: 12.92px;
    }

    .btn {
        margin-top: 6.88px;
        width: 22.28px;
        height: 15.6px;
        background: url(../images/mob-btn.png) no-repeat center center / cover;
    }

    .header_dark .btn-search {
        background: url(../images/mobb_search.png) no-repeat center center / cover;
    }

    .header_dark .btn-en {
        color: #1D4F91;
        display: none;
    }

    .header_dark .btn {
        background: url(../images/mob-darkbtn.png) no-repeat center center / cover;
    }

    /*搜索*/
    .search {
        display: none;
    }

}