.normal-layout > .main{position:relative;text-align:center}.normal-layout > .main > .banner{text-align:center;position:relative;height:740px;background:#20487b;width:100%}.normal-layout > .main > .banner > .desc{width:1280px;height:630px;text-align:left;padding-left:50px;padding-top:160px;color:#fff;position:absolute;margin:auto;bottom:0;left:0;right:0;background:url("../common/img/double-teacher/bg_ceed271fa7.png") center no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/bg@2x_c05c6b8e74.png") 2x);-webkit-background-size:cover;background-size:cover}.normal-layout > .main > .banner > .desc > h3{font-size:22px;color:#fff;letter-spacing:0;line-height:22px;font-weight:normal;margin:0}.normal-layout > .main > .banner > .desc > h2{font-size:42px;color:#fff;letter-spacing:0;line-height:42px;margin:24px 0 32px}.normal-layout > .main > .banner > .desc p{font-size:14px;color:#fff;line-height:26px;margin-bottom:30px}.normal-layout > .main > .banner > .desc a{border:2px solid #fff;-webkit-border-radius:8px;border-radius:8px;height:44px;font-family:-apple-system,"Microsoft YaHei";font-size:14px;color:#fff;padding:14px 38px;z-index:10;position:relative}.normal-layout > .main > .description{background:#fff;height:620px;width:100%;position:relative;text-align:center;padding-top:80px}.normal-layout > .main > .description > h3{font-size:28px;color:#3d3d3e;line-height:28px;margin:0}.normal-layout > .main > .description > .line{width:40px;height:4px;background:#37a4f5;margin:16px auto 32px}.normal-layout > .main > .description > .content{font-size:16px;color:#3d3d3e;line-height:30px}.normal-layout > .main > .description > .desc-items{width:1280px;height:240px;margin:97px auto 0;position:relative}.normal-layout > .main > .description > .desc-items > .item{display:inline-block;width:33%;height:100%;text-align:center;vertical-align:top}.normal-layout > .main > .description > .desc-items > .item > .title{font-size:20px;color:#3d3d3e;letter-spacing:0;line-height:20px;font-weight:bold;margin:47px auto 16px}.normal-layout > .main > .description > .desc-items > .item > .desc{height:66px;margin:0 auto;font-size:14px;color:#9d9d9e;letter-spacing:0;line-height:28px}.normal-layout > .main > .description > .desc-items .img{width:66px;height:66px;-webkit-background-size:contain;background-size:contain;margin:0 auto}.normal-layout > .main > .description > .desc-items .img.img1{background:url("../common/img/double-teacher/double-teacher_54d597ba7a.png") center no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/double-teacher@2x_39f90c7257.png") 2x)}.normal-layout > .main > .description > .desc-items .img.img2{background:url("../common/img/double-teacher/zhineng_e95a234b6b.png") center no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/zhineng@2x_cab81129af.png") 2x)}.normal-layout > .main > .description > .desc-items .img.img3{background:url("../common/img/double-teacher/space_e0467b18c1.png") center no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/space@2x_52361b740b.png") 2x)}.normal-layout > .main > .example{background:#389ad9;background:-webkit-gradient(linear,left top, left bottom,color-stop(3%, #389ad9),color-stop(96%, #2071d4));background:-webkit-linear-gradient(top,#389ad9 3%,#2071d4 96%);background:-moz- oldlinear-gradient(top,#389ad9 3%,#2071d4 96%);background:linear-gradient(-180deg,#389ad9 3%,#2071d4 96%);height:728px;width:100%;text-align:center;padding-top:82px}.normal-layout > .main > .example > h3{font-size:28px;color:#fff;line-height:28px;margin:0}.normal-layout > .main > .example > .line{width:40px;height:4px;background:#fff;margin:16px auto 0}.normal-layout > .main > .example > .desc-items{width:1290px;height:500px;margin:0 auto;font-size:20px;color:#fff}.normal-layout > .main > .example > .desc-items > .left-item{background:url("../common/img/double-teacher/teacher-example_b1db1d80de.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/teacher-example@2x_4df1510a03.png") 2x);display:inline-block;width:603px;height:100%;padding-top:478px;padding-left:31px}.normal-layout > .main > .example > .desc-items > .right-item{background:url("../common/img/double-teacher/student-example_4c36350a88.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/student-example@2x_65e4b9a72b.png") 2x);display:inline-block;width:677px;height:100%;padding-top:478px;padding-left:37px}.normal-layout > .main > .solution{background:#fff;height:732px;width:100%;text-align:center;padding-top:82px}.normal-layout > .main > .solution > h3{font-size:28px;color:#3d3d3e;line-height:28px;margin:0}.normal-layout > .main > .solution > .line{width:40px;height:4px;background:#37a4f5;margin:16px auto 0}.normal-layout > .main > .solution > .desc{font-size:16px;color:#3d3d3e;line-height:16px;margin:32px auto 64px}.normal-layout > .main > .solution > .solution-bg{width:1280px;height:420px;margin:0 auto;background:url("../common/img/double-teacher/chahua_92e9970662.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/chahua@2x_509b6f9415.png") 2x)}.normal-layout > .main > .soft-function{background:#f3f4f5;height:598px;width:100%;text-align:center;padding-top:82px}.normal-layout > .main > .soft-function > h3{font-size:28px;color:#3d3d3e;line-height:28px;margin:0}.normal-layout > .main > .soft-function > .line{width:40px;height:4px;background:#37a4f5;margin:16px auto 72px}.normal-layout > .main > .soft-function > .client-items{width:1104px;margin:0 auto}.normal-layout > .main > .soft-function > .client-items .title{font-size:16px;color:#3d3d3e;line-height:16px;margin-bottom:14px}.normal-layout > .main > .soft-function > .client-items .title:before{content:'';width:14px;height:14px;display:inline-block;vertical-align:top;margin-right:8px;background:#37a4f5}.normal-layout > .main > .soft-function > .client-items > .teacher-item{float:left;width:512px;text-align:left}.normal-layout > .main > .soft-function > .client-items > .teacher-item .img{background:url("../common/img/double-teacher/teacher-client_ee82db53a4.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/teacher-client@2x_7e1a36c5ea.png") 2x);width:512px;height:288px}.normal-layout > .main > .soft-function > .client-items > .student-item{float:right;width:512px;text-align:left}.normal-layout > .main > .soft-function > .client-items > .student-item .img{background:url("../common/img/double-teacher/student-client_171434011f.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/student-client@2x_921232461a.png") 2x);width:512px;height:288px}.normal-layout > .main > .detail{width:100%;height:480px;background:url("../common/img/double-teacher/error-bg_bd4d624135.png") center no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/error-bg@2x_32fe2cd92b.png") 2x);text-align:center;padding-top:122px}.normal-layout > .main > .detail > h3{font-size:28px;color:#fff;line-height:28px;margin:0}.normal-layout > .main > .detail > .line{width:40px;height:4px;background:#fff;margin:16px auto 56px}.normal-layout > .main > .detail > .desc{font-size:16px;color:#fff;line-height:16px;margin-bottom:94px}.normal-layout > .main > .detail > .button{font-size:16px;color:#37a4f5;line-height:14px;padding:17px 72px;background:#fff;border:2px solid #fff;-webkit-box-shadow:0 4px 16px 0 rgba(0,0,0,0.16);box-shadow:0 4px 16px 0 rgba(0,0,0,0.16);-webkit-border-radius:100px;border-radius:100px;font-weight:bold}.normal-layout > .main > .project{background:#f3f4f5;width:100%;height:592px;padding-top:80px}.normal-layout > .main > .project > h3{font-size:28px;color:#3d3d3e;line-height:28px;margin:0}.normal-layout > .main > .project > .line{width:40px;height:4px;background:#37a4f5;margin:16px auto 72px}.normal-layout > .main > .project > .items{width:1280px;height:312px;background:#fff;-webkit-border-radius:8px;border-radius:8px;margin:0 auto}.normal-layout > .main > .project > .items > .item{width:24%;height:100%;display:inline-block;vertical-align:top;padding-top:34px}.normal-layout > .main > .project > .items > .item > .pic{width:62px;height:74px;margin:0 auto}.normal-layout > .main > .project > .items > .item > .title{font-weight:bold;font-size:20px;color:#3d3d3e;letter-spacing:0;line-height:20px;margin:24px auto}.normal-layout > .main > .project > .items > .item > .desc{font-size:16px;color:#6d6d6e;line-height:26px;width:260px;margin:0 auto}.normal-layout > .main > .project > .items > .item + .item{border-left:2px solid #f1f2f3}.normal-layout > .main > .project > .items > .item.student-item .pic{background:url("../common/img/double-teacher/student-part_141afa0245.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/student-part@2x_2d25c73d68.png") 2x)}.normal-layout > .main > .project > .items > .item.parent-item .pic{background:url("../common/img/double-teacher/parent-part_19386ac8b6.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/parent-part@2x_898553628a.png") 2x)}.normal-layout > .main > .project > .items > .item.teacher-item .pic{background:url("../common/img/double-teacher/teacher-part_e3e2fb59d7.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/teacher-part@2x_74ad84c35f.png") 2x)}.normal-layout > .main > .project > .items > .item.organization-item .pic{background:url("../common/img/double-teacher/org-part_24dd4f7dc0.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/org-part@2x_bfeb8c516b.png") 2x)}.normal-layout > .main > .domain{width:100%;height:753px;background:#1f1f1f;padding-top:80px}.normal-layout > .main > .domain > h3{font-size:28px;color:#fff;line-height:28px;margin:0}.normal-layout > .main > .domain > .line{width:40px;height:4px;background:#fff;margin:16px auto 72px}.normal-layout > .main > .domain > .items{width:1280px;margin:0 auto}.normal-layout > .main > .domain > .items > .item{display:inline-block;width:420px;height:236px;font-size:16px;color:#fff;line-height:236px;margin-right:-4px}.normal-layout > .main > .domain > .items > .item.item1{background:url("../common/img/double-teacher/k12_ed87617d3a.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/k12@2x_306b263841.png") 2x)}.normal-layout > .main > .domain > .items > .item.item2{background:url("../common/img/double-teacher/kaoyan_4dc25eb93f.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/kaoyan@2x_1cd885da10.png") 2x)}.normal-layout > .main > .domain > .items > .item.item3{background:url("../common/img/double-teacher/zhiye_37a42abdf5.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/zhiye@2x_acc513ffcf.png") 2x)}.normal-layout > .main > .domain > .items > .item.item4{background:url("../common/img/double-teacher/suzhi_d13a6ad80f.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/suzhi@2x_d1637c8ab1.png") 2x)}.normal-layout > .main > .domain > .items > .item.item5{background:url("../common/img/double-teacher/gongli_c86af99003.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/gongli@2x_ba2ee1467b.png") 2x)}.normal-layout > .main > .domain > .items > .item.item6{background:url("../common/img/double-teacher/guoji_e954144da3.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/guoji@2x_be2e2ebe1d.png") 2x)}.normal-layout > .main > .partner{width:100%;height:440px;background:#fff;padding-top:80px}.normal-layout > .main > .partner > h3{font-size:28px;color:#3d3d3e;line-height:28px;margin:0}.normal-layout > .main > .partner > .line{width:40px;height:4px;background:#37a4f5;margin:16px auto 72px}.normal-layout > .main > .partner > .items{margin:0 auto;width:auto;height:160px}.normal-layout > .main > .partner > .items > .item{width:280px;height:160px;background:#fff;border:1px solid #f1f2f3;-webkit-box-shadow:0 4px 16px 0 rgba(55,164,245,0.16);box-shadow:0 4px 16px 0 rgba(55,164,245,0.16);-webkit-border-radius:1px;border-radius:1px;display:inline-block}.normal-layout > .main > .partner > .items > .item > .pic{margin:0 auto}.normal-layout > .main > .partner > .items > .item + .item{margin-left:30px}.normal-layout > .main > .partner > .items > .item.huatu .pic{width:212px;height:54px;margin-top:53px;background:url("../common/img/double-teacher/huatu_6c3b2d13a8.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/huatu@2x_5af6d8c757.png") 2x)}.normal-layout > .main > .partner > .items > .item.puxin .pic{width:173px;height:57px;margin-top:52px;background:url("../common/img/double-teacher/puxin_44d5195a24.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/puxin@2x_f3e95c028e.png") 2x)}.normal-layout > .main > .partner > .items > .item.pingxing .pic{width:173px;height:60px;margin-top:50px;background:url("../common/img/double-teacher/pingxing_aedbd4d146.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/pingxing@2x_8fd1ae0b68.png") 2x)}.normal-layout > .main > .partner > .items > .item.tuowei .pic{width:220px;height:47px;margin-top:57px;background:url("../common/img/double-teacher/tuowei_95a69b0717.png") no-repeat;background-image:-webkit-image-set(url("../common/img/double-teacher/tuowei@2x_e1b02c0db8.png") 2x)}.normal-layout > .main > .contact-double-teacher{width:100%;height:284px;background:#37a4f5;padding-top:80px;position:relative}.normal-layout > .main > .contact-double-teacher:before{content:'';display:block;position:absolute;left:0;right:0;margin:0 auto;top:0;background:#fff;width:0;height:0;border-left:22px solid #37a4f5;border-right:22px solid #37a4f5;border-top:22px solid #fff}.normal-layout > .main > .contact-double-teacher > h3{font-size:28px;color:#fff;line-height:28px;margin:0}.normal-layout > .main > .contact-double-teacher > .button{font-size:16px;color:#37a4f5;padding:10px 88px;background:#fff;-webkit-box-shadow:0 4px 16px 0 rgba(0,0,0,0.16);box-shadow:0 4px 16px 0 rgba(0,0,0,0.16);-webkit-border-radius:100px;border-radius:100px;margin:48px auto;font-weight:bold}.flotage{position:fixed;top:50%;right:0;z-index:9}.flotage .flotage-icon{display:block;width:47px;height:47px}.flotage .flotage-top{background:url("../img/top_0c2306d0ac.png") no-repeat}.flotage .flotage-top:hover{background:url("../img/top-hover_eb863c6b19.png") no-repeat}.flotage .flotage-buiness{background:url("../img/buiness_013d00c75e.png") no-repeat}.flotage .flotage-buiness:hover{background:url("../img/buiness-hover_52f6478813.png") no-repeat}.flotage .flotage-email{background:url("../img/email_e678df9585.png") no-repeat}.flotage .flotage-email:hover{background:url("../img/email-hover_f041c84817.png") no-repeat}