* {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Microsoft YaHei";
    font-size: 14px;
    color: #7d7d7d;
    letter-spacing: 1px;
}

div,
ul,
li,
input,
a,
span,
textarea {
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

ul,
li {
    list-style: none;
    margin: 0;
    padding: 0;
}

input, textarea {
    outline: none;
    border: 0;
}


/*-----------------------------------------------------------------------------------*/

.warp {
    width: 100%;
    position: relative;
    ;
    min-width: 1170px;
}

.banner {
    background: #5a9ac5;
    width: 100%;
    height: 530px;
}

.banner-bg {
    background: url("../img/ds-banner.jpg")/*tpa=http://www.xhf86.com/img/ds-banner.jpg*/ no-repeat center center;
    width: 100%;
    height: 530px;
}

    .banner-bg .banner-content {
        width: 1170px;
        height: 530px;
        margin: 0 auto;
        padding: 95px 0 45px 0;
        color: #fff;
        position: relative;
    }

/*bc-righttxt----------------------------------*/

.banner-content .bc-right {
    width: 506px;
    padding: 50px 0 45px 30px;
    top: 95px;
    right: 0;
}

    .banner-content .bc-right .bcr-txt1 {
        font-size: 24px;
        line-height: 40px;
        padding-bottom: 30px;
    }

    .banner-content .bc-right .bcr-txt2 {
        font-size: 20px;
        line-height: 32px;
        color: #fff;
        padding-top: 30px;
    }

    .banner-content .bc-right .bcr-txt3 {
        /* width: 294px; */
        font-size: 20px;
        padding-top: 5px;
        color: #fff;
    }

    .banner-content .bc-right .bcr-button {
        width: 170px;
        height: 45px;
        background: #fd7200;
        line-height: 45px;
        color: #fff;
        border-radius: 5px;
        text-align: center;
        font-size: 16px;
        display: block;
        margin-top: 30px;
    }

        .banner-content .bc-right .bcr-button:hover {
            background: #e76800;
            transition: all 0.5s ease-in;
        }


/*mail-video------------------------------------------------------------------*/

.mail-video {
    width: 100%;
    padding-top: 70px;
}

    .mail-video .mv-content {
        width: 1170px;
        margin: 0 auto;
    }

        .mail-video .mv-content .mv-tittle1 {
            font-size: 30px;
            color: #454545;
            padding-bottom: 10px;
            text-align: center;
        }

        .mail-video .mv-content .mv-tittle2 {
            font-size: 18px;
            text-align: center;
        }

.bcll-bicon {
    width: 32px;
    height: 19px;
    display: block;
    position: absolute;
    bottom: 7px;
    left: 50%;
    margin-left: -16px;
    background: url("../img/mail-banner-icon9.png")/*tpa=http://www.xhf86.com/img/mail-banner-icon9.png*/ no-repeat;
    cursor: pointer;
}


/*.mail-video .mv-vp-content------------------------------------------*/

.mail-video .mv-vp-content {
    padding-top: 70px;
    position: relative;
}

    .mail-video .mv-vp-content .mvvp-txt {
        font-size: 22px;
        padding-bottom: 25px;
    }

    .mail-video .mv-vp-content .video-box {
        width: 377px;
        height: 291px;
        position: relative;
        border: 1px solid #dcdcdc;
        display: inline-block;
        font-size: 14px;
        background: #fff;
    }

.video-box .video-img {
    width: 375px;
    height: 205px;
    background: #454545;
    background: url("../img/ds-video-img.jpg")/*tpa=http://www.xhf86.com/img/ds-video-img.jpg*/ no-repeat;
    position: relative;
}

    .video-box .video-img .vi-plap {
        background: url("../img/mail-p3-bigplay.png")/*tpa=http://www.xhf86.com/img/mail-p3-bigplay.png*/ no-repeat;
    }

.ho {
    width: 85px;
    height: 85px;
    display: block;
    position: absolute;
    top: 50%;
    margin-top: -43px;
    left: 50%;
    margin-left: -41px;
    cursor: pointer;
}

.video-box .video-content {
    padding: 15px;
}

    .video-box .video-content .video-name {
        font-size: 16px;
        font-weight: bold;
        color: #454545;
        padding-bottom: 15px;
        margin: 0;
        letter-spacing: 0;
    }

    .video-box .video-content .peoples {
        position: absolute;
        right: 15px;
        top: 257px;
    }
/*teacher-contenr----------------------*/
.teacher-contenr {
    width: 800px;
    padding-left: 30px;
    position: absolute;
    top: 125px;
    right: 0;
}

    .teacher-contenr .tc-face {
        width: 770px;
        position: relative;
    }

.tc-face .tcf-img {
    width: 179px;
    height: 193px;
    background: url("../img/mail-p3-face.jpg")/*tpa=http://www.xhf86.com/img/mail-p3-face.jpg*/ no-repeat;
    color: #fff;
}

    .tc-face .tcf-img .tcfi-txt {
        display: block;
        padding: 135px 14px 0 12px;
        font-size: 16px;
        text-align: center;
        line-height: 24px;
    }

.tc-face .tcf-txt {
    width: 575px;
    height: 193px;
    background: #ebf3ff;
    position: absolute;
    top: 0;
    right: 0;
    padding: 12px 15px 22px 15px;
    line-height: 28px;
    font-size: 16px;
}

.teacher-contenr .videos-content {
    padding-top: 17px;
    position: relative;
    width: 770px;
}

    .teacher-contenr .videos-content .vcs-txt {
        padding-bottom: 10px;
    }

    .teacher-contenr .videos-content .vcs-play1 {
        width: 378px;
        height: 47px;
        background: #fff;
        border: 1px solid #3da0e0;
        line-height: 47px;
        font-size: 16px;
        padding: 0 5px;
        color: #3da0e0;
        position: relative;
        cursor: pointer;
        letter-spacing: 0;
    }

.vcs-play-change {
    background: #168fdc !important;
    border: 0 !important;
    color: #fff !important;
}

.teacher-contenr .videos-content .vcs-play2 {
    position: absolute;
    top: 46px;
    right: 0;
}

.vcs-play1 .vcsp-txt {
    padding-right: 10px;
    font-size: 18px;
}

.vcs-play1 .vcsp-icon {
    width: 30px;
    height: 30px;
    background: url("../img/mail-p3-smallplay1.png")/*tpa=http://www.xhf86.com/img/mail-p3-smallplay1.png*/ no-repeat;
    display: block;
    position: absolute;
    right: 15px;
    top: 8px;
}

.vcsp-icon2 {
    width: 30px;
    height: 30px;
    background: url("../img/mail-p3-smallplay2.png")/*tpa=http://www.xhf86.com/img/mail-p3-smallplay2.png*/ no-repeat;
    display: block;
    position: absolute;
    right: 15px;
    top: 8px;
}

/*hme books---------------------*/

.hme-books {
    background: #fff;
    width: 100%;
    padding: 70px 0 80px 0;
}

    .hme-books .books-content {
        width: 1170px;
        margin: 0 auto;
        border-top: 1px solid #dcdcdc;
    }

.books-content .books-tittle {
    font-size: 24px;
    color: #454545;
    position: relative;
    padding: 70px 0 50px 0;
}


.books-content .more-books {
    float: right;
    font-size: 16px;
    color: #3da0e0;
    font-weight: normal;
}

    .books-content .more-books:hover {
        text-decoration: underline;
    }


/*books-container*/

.books-container {
    position: relative;
    height: 404px;
    top: 50px;
}

    .books-container .book {
        width: 237px;
        height: 333px;
        position: absolute;
        z-index: 5;
        text-align: center;
        display: block;
        cursor: pointer;
    }

.book .book-bg {
    color: #fff;
    text-align: left;
    position: relative;
    height: 336px;
    display: none;
}

.book-bg-show {
    display: block !important;
}

.book-bg .bottons {
    position: absolute;
    width: 100%;
    bottom: 10px;
}

.book .book-bg .book-bg-tittle {
    font-size: 18px;
    padding-bottom: 20px;
}

.book .book-bg .book-bg-txt {
    font-size: 14px;
    line-height: 24px;
}

.book .book-bg .book-bg-txt {
    font-size: 14px;
    line-height: 24px;
}

.read-book {
    width: 90px;
    height: 30px;
    background: #3da0e0;
    line-height: 30px;
    text-align: center;
    color: #fff;
    display: block;
    border-radius: 3px;
}

    .read-book:hover {
        background: #168fdc;
    }

.download-book {
    width: 90px;
    height: 30px;
    background: #fff;
    line-height: 30px;
    text-align: center;
    color: #3da0e0;
    display: block;
    border-radius: 3px;
    position: absolute;
    right: 0;
    bottom: 0;
}

    .download-book:hover {
        background: #168fdc;
        color: #fff;
    }

.book-txt2 {
    color: #168fdc;
}

.books-container .book1_1 {
    background: url("../img/kan5-1.png")/*tpa=http://www.xhf86.com/img/kan5-1.png*/ no-repeat;
    left: 135px;
}

.books-container .book1_2 {
    background: url("../img/kan5-2.png")/*tpa=http://www.xhf86.com/img/kan5-2.png*/ no-repeat;
    width: 265px;
    height: 376px;
    left: 120px;
    top: -50px;
    padding: 20px;
}

.books-container .book2_1 {
    background: url("../img/et-book3.png")/*tpa=http://www.xhf86.com/img/et-book3.png*/ no-repeat;
    left: 470px;
}

.books-container .book2_2 {
    background: url("../img/et-book3-2.png")/*tpa=http://www.xhf86.com/img/et-book3-2.png*/ no-repeat;
    width: 265px;
    height: 376px;
    left: 450px;
    top: -50px;
    padding: 20px;
}

.books-container .book3_1 {
    background: url("../img/kan4-1.png")/*tpa=http://www.xhf86.com/img/kan4-1.png*/ no-repeat;
    left: 795px;
}

.books-container .book3_2 {
    background: url("../img/kan4-2.png")/*tpa=http://www.xhf86.com/img/kan4-2.png*/ no-repeat;
    width: 265px;
    height: 376px;
    left: 770px;
    top: -50px;
    padding: 20px;
}

.books-container .book-shelf {
    width: 1170px;
    height: 68px;
    background: url("../img/et-bookshelf.png")/*tpa=http://www.xhf86.com/img/et-bookshelf.png*/ no-repeat;
    position: absolute;
    bottom: 32px;
}


/*news-outer---------------------------------------------------*/
.news-outer {
    width: 100%;
    height: 612px;
    text-align: center;
}

.news-tittle {
    font-size: 22px;
    color: #454545;
    text-align: left;
    padding-bottom: 60px;
}

.news-outer .news-container {
    width: 1170px;
    padding-top: 60px;
    border-top: 1px solid #dcdcdc;
    position: relative;
    margin: 0 auto;
    font-size: 12px;
}

.news-container .news-img {
    width: 270px;
    height: 400px;
    float: left;
    margin-right: 30px;
}

.news-container .news-img1 {
    background: url("../img/ds-news1.jpg")/*tpa=http://www.xhf86.com/img/ds-news1.jpg*/ no-repeat;
}

.news-container .news-img2 {
    background: url("../img/ds-news2.jpg")/*tpa=http://www.xhf86.com/img/ds-news2.jpg*/ no-repeat;
}

.news-container .news-img3 {
    background: url("../img/ds-news3.jpg")/*tpa=http://www.xhf86.com/img/ds-news3.jpg*/ no-repeat;
}

.news-container .news-img4 {
    background: url("../img/ds-news4.jpg")/*tpa=http://www.xhf86.com/img/ds-news4.jpg*/ no-repeat;
}

.news-img-move {
    transform: translateY(-20px);
    transition: all 0.3s ease-in;
    -webkit-transform: translateY(-20px);
    -webkit-transition: all 0.3s ease-in;
    -moz-transform: translateY(-20px);
    -moz-transition: all 0.3s ease-in;
}




/*cm-outer---------------------------------------------------*/
.cm-outer {
    width: 100%;
    height: 527px;
    background: #49648c;
}

.co-bg {
    width: 100%;
    height: 527px;
    background: url("../img/ds-p5bg.jpg")/*tpa=http://www.xhf86.com/img/ds-p5bg.jpg*/ no-repeat center center;
}

.cm-outer .cm-container {
    width: 1170px;
    margin: 0 auto;
    color: #fff;
}

    .cm-outer .cm-container .cm-tittle {
        font-size: 30px;
        text-align: center;
        padding: 65px 0 50px 0;
    }

    .cm-outer .cm-container .cm-content {
        position: relative;
        height: 474px;
        padding-bottom: 90px;
    }

.cm-content .cmc-left {
    position: relative;
}

    .cm-content .cmc-left .cmcl-img {
        width: 675px;
        height: 540px;
        position: absolute;
        top: 0;
        left: 0;
        display: none;
    }

.cmcl-img-show {
    display: block !important;
}


.cmcl-img1 {
    background: url("../img/ds-p5-img1.png")/*tpa=http://www.xhf86.com/img/ds-p5-img1.png*/ no-repeat;
}


.cmc-right {
    width: 425px;
    position: absolute;
    top: 0;
    left: 745px;
}

    .cmc-right .cmcr-txt1 {
        font-size: 20px;
        padding-bottom: 10px;
    }

    .cmc-right .cmcr-txt2 {
        font-size: 14px;
        padding-bottom: 32px;
    }


.cm-btn {
    width: 285px;
    height: 62px;
    display: block;
    ;
    border-radius: 30px;
    line-height: 62px;
    color: #fff;
    text-align: center;
    font-size: 30px;
    background: #3da0e0;
    margin-top: 75px;
}

    .cm-btn:hover {
        background: #168fdc;
    }

.cm-btn-txt {
    font-size: 18px;
    text-align: center;
    padding-top: 20px;
}

/*nav3-outer------------------------------------------------------------*/
.nav3-outer {
    width: 100%;
    height: 50px;
    background: rgba(34,38,46,.8);
    filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=#8F22262e,endcolorstr=#8F22262e);
    position: fixed;
    top: 0;
    z-index: 999;
}

    .nav3-outer .n3-container {
        width: 1170px;
        height: 50px;
        margin: 0 auto;
    }

.n3c-ul {
    position: relative;
}

    .n3c-ul .n3cu-list {
        display: inline-block;
        display: inline;
        *zoom: 1;
        font-size: 0;
        height: 50px;
        padding-right: 45px;
    }

        .n3c-ul .n3cu-list a {
            line-height: 50px;
            font-size: 14px;
            color: #fff;
        }
/*.bottom-fixed---------------------------------------------------------------------------*/
.bottom-fixed {
    width: 100%;
    height: 220px;
    position: fixed;
    z-index: 998;
    bottom: 0;
    left: -100%;
    background: rgba(77,101,118,.8);
    filter: progid: DXImageTransform.Microsoft.gradient(startcolorstr=#8F4d6576, endcolorstr=#8F4d6576);
    /*display: none;*/
}

.bottom-fixed-show {
    /*display: block;*/
}

.bottom-fixed .bf-container {
    width: 1170px;
    height: 220px;
    margin: 0 auto;
    background: rgba(0,0,0,.6);
    filter: progid: DXImageTransform.Microsoft.gradient(startcolorstr=#6F000000, endcolorstr=#6F000000);
    color: #fff;
    padding: 30px 27px;
    position: relative;
}

.bfc-tittle {
    font-size: 30px;
    padding-bottom: 25px;
}

.bfc-ibox {
    width: 582px;
    height: 94px;
    font-size: 14px;
}

    .bfc-ibox .bfc-input {
        float: left;
        height: 36px;
        line-height: 36px;
        margin-top: 10px;
    }

        .bfc-ibox .bfc-input input {
            height: 36px;
            background: transparent;
            border: 1px solid #fff;
            border-radius: 3px;
            padding-left: 10px;
            color: #fff;
        }

.bfc-mbox-blue {
    border-color: #3da0e0 !important;
}

.bfci-input1 span {
    padding-left: 30px;
}

.bfci-input2 span {
    padding-left: 15px;
}

.bfci-input2 input {
    width: 200px;
}

.bfci-input4 span {
    padding-left: 20px;
}

.bfci-input4 input {
    width: 200px;
}

.bfc-tbox {
    height: 82px;
    position: absolute;
    right: 174px;
    bottom: 30px;
}

    .bfc-tbox textarea {
        width: 274px;
        height: 82px;
        background: transparent;
        border: 1px solid #dcdcdc;
        outline: none;
        resize: none;
        padding: 10px;
        color: #fff;
        border-radius: 3px;
    }

    .bfc-tbox .bfct-txt {
        position: absolute;
        top: 7px;
        left: -108px;
    }

.bfc-btn {
    width: 124px;
    height: 37px;
    background: #3da0e0;
    color: #fff;
    text-align: center;
    ;
    line-height: 37px;
    font-size: 18px;
    border-radius: 5px;
    position: absolute;
    right: 27px;
    bottom: 30px;
    cursor: pointer;
}

    .bfc-btn:hover {
        background: #168fdc;
    }

.bfc-cloced {
    width: 38px;
    height: 38px;
    background: url("../img/mail-fixed-closed.png")/*tpa=http://www.xhf86.com/img/mail-fixed-closed.png*/ no-repeat;
    position: absolute;
    top: 30px;
    right: 27px;
    display: block;
    cursor: pointer;
}

.bf-show {
    width: 148px;
    height: 100px;
    background: url("../img/mail-fixed-open.png")/*tpa=http://www.xhf86.com/img/mail-fixed-open.png*/ no-repeat;
    position: fixed;
    left: 0;
    bottom: 60px;
    z-index: 999;
    cursor: pointer;
}

.bfc-wrong {
    color: #fa7374;
    font-size: 14px;
    padding-left: 20px;
    /*display: none;*/
}