/* CSS Reset*/
body,
div,
span,
object,
iframe,
input,
h1,
h2,
h3,
h4,
h5,
h6,
p,
pre,
a,
acronym,
address,
code,
del,
em,
font,
img,
ins,
strong,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
table,
tbody,
tfoot,
thead,
tr,
th,
td {
    padding: 0;
    margin: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

ins {
    text-decoration: none;
}

del {
    text-decoration: line-through;
}

input,
select {
    vertical-align: middle;
}

input,
textarea,
select {
    font: 12px/1.5 "microsoft yahei", Arial, sans-serif;
}

fieldset,
img {
    border: 0;
}

address,
code,
th,
em {
    font-style: normal;
}

ol,
ul {
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
}

body {
    margin: 0 auto;
    font: 14px/1.5 "microsoft yahei", Arial, sans-serif;
    color: #666;
    background: #fff;
    height: 100%;
}

.wrapper {
    margin: 0 auto;
    width: 1230px;
}

.clearfix {
    zoom: 1;
}

.clearfix:after {
    content: "";
    height: 0;
    visibility: hidden;
    display: block;
    clear: both;
}

.clear {
    clear: both；;
}

a {
    text-decoration: none;
    outline: none;
    cursor: pointer;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

/**************************校园版安装包页面**************************/
@font-face {
    font-family: "Noto Sans SC";
    src: url("//gcdncs.cn.ndhy.com/v0.1/static/edit_99/tmcms/iconfont/Noto_Sans_SC/NotoSansSC-Regular.otf");
}

@font-face {
    font-family: "Noto Serif SC";
    src: url("//gcdncs.cn.ndhy.com/v0.1/static/edit_99/tmcms/iconfont/Noto_Serif_SC/NotoSerifSC-Bold.otf");
}
.down-bg {
    background: url(../img/down-bg3.jpg) no-repeat top center;
    width: 100%;
    min-height: 1080px;
}

.main {
    text-align: center;
    color: #757c8c;
    font-size: 20px;
    padding-top: 85px;
    font-family: "Noto Sans SC", sans-serif;
    font-weight: normal;
    margin: 0 auto;
    height: 207px;
}

.main h2 {
    font-size: 35px;
    color: #1a1514;
    text-shadow: 2px 3px 3px rgba(195, 190, 172, 0.7);
    font-family: "Noto Serif SC", serif;
    font-weight: 900;
    line-height: 90px;
}

.main h2::before {
    content: "";
    background: url(../img/logo1.png) no-repeat;
    width: 105px;
    height: 116px;
    display: inline-block;
    vertical-align: top;
}

.main p {
    margin-top: -30px;
}

.main a {
    color: #ff872e;
}

.con {
    background: url(../img/con-bg.png) no-repeat;
    width: 1229px;
    height: 484px;
    display: block;
    margin: 130px auto 0;
}

.ewm {
    background: url(../img/ewm-bg1.png) no-repeat;
    width: 270px;
    height: 401px;
    display: block;
    margin: -24px 0 0 7px;
    float: left;
    color: #1e1e1e;
    font-size: 26px;
    padding: 82px 67px 29px 73px;
    text-align: center;
    font-family: "Noto Serif SC", serif;
    font-weight: normal;
    box-sizing: content-box;
}

.ewm img {
    width: 250px;
    height: 250px;
    border: 2px solid #fff5f5;
    border-radius: 10px;
    margin-top: 10px;
    margin-right: 10px;
}

.ewm h2 {
    font-size: 34px;
    font-weight: 900;
}

.ewm h3 {
    font-weight: 900;
}

.wa {
    float: left;
    padding: 60px 0 0 10px;
    font-family: "Noto Sans SC", sans-serif;
    font-weight: normal;
    color: #757c8c;
    font-size: 18px;
    width: 786px;
    float: left;
}

.wa h2 {
    font-size: 28px;
    color: #1e1e1e;
    font-family: "Noto Serif SC", serif;
    font-weight: 900;
}

.wa .wa1 {
    margin-bottom: 70px;
}

.wa .wa2 {
    margin-bottom: 70px;
}

.wa .wa1::before {
    background: url(../img/wa-i1.png) no-repeat;
    content: "";
    width: 85px;
    height: 80px;
    display: inline-block;
    float: left;
    vertical-align: top;
    margin: 5px 10px 0 0px;
}

.wa .wa2::before {
    background: url(../img/wa-i2.png) no-repeat;
    content: "";
    width: 78px;
    height: 82px;
    display: inline-block;
    float: left;
    vertical-align: top;
    margin: 5px 10px 0 7px;
}

.wa .wa3::before {
    background: url(../img/wa-i3.png) no-repeat;
    content: "";
    width: 83px;
    height: 88px;
    display: inline-block;
    float: left;
    vertical-align: top;
    margin: 2px 10px 0 2px;
}

@media only screen and (max-width: 1439px) {
    .down-bg {
        min-height: 1080px;
        background-size: cover;
        width: 100%;
        overflow-x: hidden;
    }

    .wrapper {
        margin: 0 auto;
        width: 1000px;
    }

    .con {
        width: 1000px;
        border-radius: 30px;
    }

    .wa {
        width: 550px;
        padding: 50px 0 0 10px;
    }

    .wa .wa1 {
        margin-bottom: 45px;
    }

    .wa .wa2 {
        margin-bottom: 45px;
    }
}

@media only screen and (min-width: 1921px) {
    .down-bg {
        background-size: cover;
        width: 100%;
        overflow-x: hidden;
        min-height: 100vh;
    }

    .wrapper {
        height: 1512px;
        width: 1730px;
    }

    .con {
        transform: scale(1.4);
        margin: 330px auto 0;
    }

    .main {
        padding-top: 90px;
        transform: scale(1.4);
    }
}

@media only screen and (min-width: 2881px) {
    .wrapper {
        height: 1620px;
        width: 2340px;
    }

    .con {
        transform: scale(1.9);
        margin: 680px auto 0;
    }

    .main {
        transform: scale(1.9);
        padding-top: 160px;
    }
}

@media only screen and (max-width: 2880px) and (min-width: 2561px) {
    .wrapper {
        height: 1620px;
        width: 1850px;
    }

    .con {
        transform: scale(1.5);
        margin: 410px auto 0;
    }

    .main {
        transform: scale(1.5);
        padding-top: 130px;
    }
}