html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    font-size: 10px;
}

* {
    box-sizing: border-box;
}

.main-body {
    width: 100%;
    height: 100%;
    min-height: 500px;
    position: relative;
    display: flex;
    flex-direction: column;
    background-color: #267cdf;

}

a:hover {
    text-underline: none;
    text-decoration-line: none;
}


.dw-header {
    height: 10rem;
}

.dw-footer {
    height: 10rem;
}

.dw-banner-bg {
    flex: 1;
    /*background: #267cdf;*/
}

.dw-container {
    width: 100%;
    max-width: 900px;
    margin: auto;
    position: relative;
    height: 100%;
}


.dw-cloud-bg {
    height: 40rem;
    width: 100%;
    bottom: 0;
    position: absolute;
    background-position: center bottom;
    background-image: url("/static/footer_bg.png");
    background-size: 1920px auto;
    background-repeat: no-repeat;
}
/* 二维码 */
.download-box-inner {
    display: flex;
}

.download-box-inner .download-box-left {
    width: 20rem;
    height: 20rem;
    margin-right: 2rem;
    margin-top: 1.2rem;
}

.download-box-left img {
    width: 100%;
    height: 100%;
}
.download-box-right{
    flex: 1;
}
.download-box {
    text-align: center;
    /*bottom: 10rem;*/
    /*position: absolute;*/
    /*width: 100%;*/
    /*max-width: 60rem;*/
    /*width: 100%;*/
    /*right: 0;*/
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    margin: auto;
    position: absolute;
    z-index: 99;
}

.btn-download {
    display: none;
    color: #ffffff;
    font-size: 2rem;
    width: 100%;
    text-align: center;
    border-radius: 2.5rem;
    box-shadow: 0rem 0rem .4rem #555555;
    line-height: 5rem;
    padding: 0;
    background: linear-gradient(#66ca91, #49a972);

}

.btn-apps {
    background-color: #49a972;

}


.btn-download > i {
    background-size: 2rem 2rem;
    background-repeat: no-repeat;
    display: inline-block;
    width: 2rem;
    height: 2rem;
    position: relative;
    top: 3px;
    margin-right: 10px;
}

.btn-download-icon-android {
    background-image: url("/static/android.png");

}

.btn-download-icon-pc {
    background-image: url("/static/windows.png");

}

.btn-download-icon-ios {
    background-image: url("/static/IOS.png");

}

.btn-download:hover {
    background: linear-gradient(#49a972, #59ab7c);
}

.btn-download:hover, .btn-download:active, .btn-download:visited {
    color: #ffffff;
}

.version-name {
    text-align: center;
    font-size: 1.6rem;
    color: #ffffff;
    padding: 2rem 0;
    margin-top: 2rem;
}

.version-name span:first-child {
    margin-right: 1rem;
}

.version-name span:last-child {
    margin-left: 1rem;
}

.logo {
    display: inline-block;
    margin: auto;
    width: 30rem;
    height: 7.9rem;
}

.logo img {
    width: 100%;
}

.app-screen {
    display: none;
    width: 240px;
    position: absolute;
    bottom: 10rem;
}

.app-screen img {
    width: 100%;
}

.copyright {
    text-align: center;
    font-size: 1.6rem;
    color: #6a6a6a;
    bottom: 2rem;
    position: absolute;
    width: 100%;
}
.copyright a{
    font-size: 1.6rem;
    color: #6a6a6a;
}
.header-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    position: absolute;
    right: 0;
}

.header-nav li {
    padding: 1rem;
    display: inline-block;
}

.header-nav li a {
    display: inline-block;
    font-size: 1.8rem;
    color: #ffffff;
    padding: .3rem 1rem;
}

.header-nav li a:hover {
    background: #2a85ee;
}

.about-content {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #ffffff;
    padding-bottom: 10rem;
}

.about-content h2 {
    padding-left: 2rem;
}

.about-content-detail {
    font-size: 18px;
    line-height: 28px;
    color: #222222;
    padding: 2rem;
    background: #ffffff;
    border-radius: 10px;
}

.article-body{
    background-color: #267cdf;
    position: relative;
    min-height: 100%;
    background-image: url("/static/footer_bg.png");
    background-position:center bottom ;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.article-content h2{
    font-size: 3rem;
    margin: 2rem 0;
}
.article-content{
    color: #ffffff;
    padding: 5rem 0;
}
.article-content .about-content-detail{
    box-shadow: 0 0 1rem #999999;
}
.article-copyright{
    text-align: center;
    font-size: 1.6rem;
    color: #6a6a6a;
    width: 100%;
    margin-top: 2rem;
}
.article-copyright a{
    font-size: 1.6rem;
    color: #6a6a6a;
}
@media screen and (max-width: 700px) {
    .download-box-left{
        display: none;
    }
    .header-nav{
        display: none;
    }
}