.banner {
    width: 100%;
    height: 620px;
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/banner/banner_download2.png) no-repeat center center;
    background-size: cover;
    display: flex;
    position: relative;
}

.banner_swiper {
    position: relative;
}

.banner_btn {
    width: 268px;
    height: 54px;
    /* background: #000; */
    position: absolute;
    bottom: 172px;
    left: 35px;
}

.banner_btn li {
    width: 100%!important;
    height: 54px;
    background: linear-gradient(180deg, #ffb751, #ff692d 100%);
    border-radius: 27px;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    color: #ffffff;
    line-height: 54px;
    cursor: pointer;
    box-shadow: 0px 1px 1px 0px rgba(255, 224, 189, 0.60) inset, 0px -1px 1px 0px rgba(255, 189, 147, 0.50) inset;
}

.banner_btn li:hover {
    box-shadow: 15px 8px 24px 0px rgb(4 13 63 / 24%), 0px 1px 1px 0px rgb(255 224 189 / 60%) inset, 0px -1px 1px 0px rgb(255 189 147 / 50%) inset;
}

.teacher {
    height: 820px;
    background: #fff;
    overflow: hidden;
}

.teacher_content {
    margin-top: 146px;
    display: flex;
    justify-content: center;
}

.teacher_leftSide {
    width: 507px;
    z-index: 3;
}

.clientLogo {
    width: 54px;
    height: 54px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/clientLogo.png') no-repeat;
    background-size: 100% 100%;
    margin-right: 16px;
}

.teacher_leftSide_headline {
    height: 54px;
    font-size: 30px;
    font-weight: 600;
    text-align: left;
    color: #333333;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.teacher_leftSide_headline span {
    font-size: 16px;
    font-weight: 400;
    text-align: left;
    color: #1472ff;
    background: #e1eefe;
    border-radius: 0px 13px 13px 13px;
    margin-left: 8px;
    width: 129px;
    height: 26px;
    text-align: center;
}

.introductory {
    width: 507px;
    height: 30px;
    font-size: 22px;
    font-weight: 500;
    text-align: left;
    color: #333333;
    margin-top: 26px;
}

.clientRemark {
    font-size: 14px;
    font-weight: 400;
    text-align: left;
    color: #999999;
    margin-top: 10px;
}

.teacher_leftSide ul {
    margin-top: 32px;
}

.teacher_leftSide ul li {
    font-size: 16px;
    font-weight: 400;
    text-align: left;
    color: #666666;
    line-height: 24px;
    position: relative;
    display: flex;
    align-items: center;
}

.teacher_leftSide li span {
    width: 20px;
    height: 20px;
    background: #1472ff;
    border-radius: 50%;
    display: inline-block;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/client1.png') no-repeat;
    background-size: 100% 100%;
}

.teacher_leftSide li:nth-of-type(2) span {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/client2.png') no-repeat;
    background-size: 100% 100%;
}

.teacher_leftSide li:nth-of-type(3) span {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/client3.png') no-repeat;
    background-size: 100% 100%;
}

.dowIcons {
    width: 696px;
    height: 120px;
    color: #ffffff;
    margin-top: 60px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dowLink {
    width: 120px;
    height: 120px;
    background: #eff3fb;
    border: 2px solid #ffffff;
    border-radius: 12px;
    box-shadow: 0px 8px 20px 0px rgba(55, 99, 170, 0.10);
    cursor: pointer;
    position: relative;
}

.dowClient:hover .dowPic {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon_download.png') no-repeat!important;
    background-size: 100% 100%!important;
}

.dowClient:hover .dowTitleTxt {
    display: none;
}

.dowClient .toast {
    display: none;
}

.dowClient:hover .toast {
    display: block;
}

.dowPic {
    width: 60px;
    height: 60px;
    margin: 0 auto;
    margin-top: 14px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/windows.png') no-repeat;
    background-size: 100% 100%;
}

.dowPad:hover img {
    display: block;
}

.dowPad:hover .dowPic,
.dowPad:hover .dowTitle {
    display: none;
}

.dowLink img {
    margin-left: 6px;
    margin-top: 6px;
    width: 108px;
    box-sizing: border-box;
    /* height: 120px; */
    background: linear-gradient( 180deg, #eff3fb 0%, #ffffff);
    border: 2px solid #ffffff;
    border-radius: 8px;
    display: none;
}

.qr img {
    width: 100px;
}

.dowLink:nth-of-type(3) .dowPic {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/mac.png') no-repeat;
    background-size: 100% 100%;
}

.dowLink:nth-of-type(4) .dowPic {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/ipad.png') no-repeat;
    background-size: 100% 100%;
}

.dowLink:nth-of-type(5) .dowPic {
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/AndroidP.png') no-repeat;
    background-size: 100% 100%;
}

.dowTitle {
    width: 120px;
    text-align: center;
    margin-top: 11px;
    font-size: 14px;
    font-weight: 400;
    color: #333333;
}

.teacher_rightSide {
    width: 626px;
    height: 385px;
    margin-top: 13px;
}

.teacher_rightSide div {
    width: 560px;
    height: 344px;
    position: absolute;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/dowTeacherClient.png') no-repeat;
    background-size: 100% 100%;
    right: 0;
}

.section {
    height: 780px;
}

.dx,
.ys,
.jx {
    background: #f6f9fd;
}

.yz {
    background: #fff;
}

.item_container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.section ul {
    margin-top: 32px;
}

.section ul li {
    line-height: 36px;
    display: flex;
    align-items: center;
}

.section ul li span {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: 10px;
}

.item_product {
    margin-top: 60px;
    display: flex;
    align-items: center;
}

.item_product dl:hover dt,
.item_product dl:hover dd {
    display: none;
}

.item_product dl:hover .qr_img {
    display: block;
}

.item_product dl .qr_img {
    width: 108px;
    border-radius: 8px;
    display: none;
}

.item_product dl {
    width: 120px;
    height: 120px;
    background: linear-gradient(180deg, #eff3fb 0%, #ffffff);
    border: 2px solid #ffffff;
    border-radius: 12px;
    box-shadow: 0px 8px 20px 0px rgba(55, 99, 170, 0.10);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-right: 24px;
}

.item_product dl dt img {
    width: 60px;
}

.item_product dl dd {
    font-size: 14px;
    font-weight: 400;
    text-align: center;
    color: #333333;
    line-height: 22px;
    margin-top: 10px;
}

.dx ul li:nth-child(1) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/d_dx_1.png) no-repeat;
    background-size: 20px 20px;
}

.dx ul li:nth-child(2) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/d_dx_2.png) no-repeat;
    background-size: 20px 20px;
}

.dx ul li:nth-child(3) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/d_dx_3.png) no-repeat;
    background-size: 20px 20px;
}

.yz ul li:nth-child(1) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yz_1.png) no-repeat;
    background-size: 20px 20px;
}

.yz ul li:nth-child(2) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yz_2.png) no-repeat;
    background-size: 20px 20px;
}

.yz ul li:nth-child(3) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yz_3.png) no-repeat;
    background-size: 20px 20px;
}

.ys ul li:nth-child(1) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_ys_1.png) no-repeat;
    background-size: 20px 20px;
}

.ys ul li:nth-child(2) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_ys_2.png) no-repeat;
    background-size: 20px 20px;
}

.ys ul li:nth-child(3) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_ys_3.png) no-repeat;
    background-size: 20px 20px;
}

.yx ul li:nth-child(1) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yx_1.png) no-repeat;
    background-size: 20px 20px;
}

.yx ul li:nth-child(2) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yx_2.png) no-repeat;
    background-size: 20px 20px;
}

.yx ul li:nth-child(3) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_yx_3.png) no-repeat;
    background-size: 20px 20px;
}

.jx ul li:nth-child(1) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_jx_1.png) no-repeat;
    background-size: 20px 20px;
}

.jx ul li:nth-child(2) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_jx_2.png) no-repeat;
    background-size: 20px 20px;
}

.jx ul li:nth-child(3) span {
    background: url(http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/icon/icon_jx_3.png) no-repeat;
    background-size: 20px 20px;
}

.dx_pic {
    width: 573px;
    height: 517px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/d_dx.png') no-repeat;
    background-size: 573px 517px;
}

.yz_pic {
    width: 597px;
    height: 513px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/d_yz.png') no-repeat;
    background-size: 597px 513px;
}

.ys_pic {
    width: 540px;
    height: 488px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/d_ys.png') no-repeat;
    background-size: 540px 488px;
}

.yx_pic {
    width: 573px;
    height: 517px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/d_yx.png') no-repeat;
    background-size: 573px 517px;
}

.jx_pic {
    width: 528px;
    height: 517px;
    background: url('http://public-test-shengtong.oss-cn-zhangjiakou.aliyuncs.com/yixiao-pc/download/d_jx.png') no-repeat;
    background-size: 528px 517px;
}

.item_title {
    font-size: 30px;
    font-weight: 600;
    text-align: left;
    color: #333333;
    line-height: 42px;
    display: flex;
    align-items: center;
}

.item_logo {
    width: 54px;
    height: 54px;
    margin-right: 16px;
}

.item_desc {
    margin-top: 32px;
    font-size: 22px;
    font-weight: 500;
    text-align: left;
    color: #333333;
    line-height: 30px;
}

.item_desc p {
    font-size: 14px;
    font-weight: 400;
    text-align: left;
    color: #999999;
    line-height: 22px;
    margin-top: 10px;
}


/* footer */

.footer_synopsis {
    padding-bottom: 21px;
}

.footer_synopsis p {
    font-size: 12px;
    font-weight: 400;
    text-align: left;
    color: #666666;
    line-height: 20px;
}

.footer_logo {
    width: 41.23px;
    height: 23px;
    margin-bottom: 21px;
}

.information_flexd {
    position: fixed;
    bottom: 0;
    z-index: 20;
}

.dom_none {
    display: none;
}