html, body {
    height: 100vh;
}

*{
    box-sizing: border-box;
}

body {
    display: flex;
    flex-direction: column;
}

.header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 112px;
    padding: 0 122px;
    background-color: rgba(112, 113, 105, 0.1);
}
/* todo max-width: 1320px;*/
.header .logo-wrap {
    display: flex;
    align-items: center;
    margin: 0 auto;
    max-width: 1320px;
    height: 100%;
    color: #fff;
    float: left;
}

.header .tab-wrap{
    display: flex;
    float: right;
}

.header .tab-wrap .tab-item{
    width: 225px;
    height: 89px;
    display: block;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #AFAFAF;
    line-height: 89px;
    text-align: center;
    cursor: pointer;
}
.header .tab-wrap .tab-item a{
    color: #AFAFAF;
    text-decoration: none;
}

.header .tab-wrap .tab-item.active{
    background: url('../img/select.png');
    background-size: cover;
    font-size: 20px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #FFFFFF;
}

.header .logo-wrap .logo-img {
    margin-right: 26px;
}

.header .logo-wrap .title {
    margin-right: 30px;
}

.header .logo-wrap .sub-title {
    font-weight: 500;
}

.center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 134px;
    padding-bottom: 118px;
    width: 100%;
    height: 100%;
    min-height: 255px;
    background-image: url("../img/bg.png");
    background-position: bottom;
    background-size: cover;
    background-repeat: no-repeat;
}
.center .center-content {
    margin: 0 auto;
    padding-bottom: 160px;
    width: 100%;
    max-width: 1320px;
}

.center .title {
    margin-bottom: 20px;
    width: 492px;
    font-size: 60px;
    color: #FFFFFF;
    line-height: 84px;
}

.center .download-wrap {
}

.center .download-wrap .apple-down,
.center .download-wrap .android-down
 {
    display: inline-block;
    width: 263px;
    height: 77px;
    font-size: 24px;
    font-weight: 500;
    color: #000000;
    line-height: 77px;
    text-align: center;
    background-image: url("../img/btn-down-bg.png");;
    text-decoration: none;
}

.center .download-wrap .apple-down .icon {
    display: inline-block;
    width: 38px;
    height: 38px;
    background-image: url("../img/icon-apple.png");
    background-repeat: no-repeat;
    vertical-align: text-bottom;
}

.center .download-wrap .android-down .icon {
    display: inline-block;
    width: 38px;
    height: 38px;
	background-size: cover;
    background-image: url("../img/icon-android.png");
    background-repeat: no-repeat;
    vertical-align: text-bottom;
}

.footer {
    position: absolute;
    left: 0;
    bottom: 0;
    padding-top: 20px;
    width: 100%;
    min-height: 98px;
    background-color: rgba(0, 0, 0, 0.35);
}

.footer .line-text {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin: 10px 0 20px;
}

.footer .line-text p {
    margin: 0 20px;
    color: #818183;
    font-size: 14px;
}