* {
    margin: 0px;
    padding: 0px 0px;
    overflow-x: hidden;
}

body{
    background-color: #e3e3e3;
    display: flex;
    position: relative;
    justify-content: center;
}

#download_page{
    max-width: 1000px;
    background-color: white;
}

/*img/logo.png样式*/
.logo {
    padding: 12px 0px;
}

.bg-white{
    background-color: #ffffff;
}

.bg-gray{
    background-color: #f3f3f3;
}


/*所有文字样式*/
h2{
    margin-top: 20px;
    margin-bottom: 20px;
}

h2, h4 {
    text-align: center;
}

.img_position img{
    min-width: 150px;
}

/*头部下拉框样式*/
.top_drop {
    border: none;
    outline: none;
    background: none;
    height: 30px;
    font-size: 13px;
    color: #B2B2B2;
    float: right;
    margin-top: 20px;
    margin-right: 8px;
}

/*字体样式*/
.one_title {
    font-size: 28px;
    font-family: monospace;
}

.tow_title {
    font-size: 16px;
    color: #444444;
    font-weight: normal;
    margin: 15px 8px;
    font-family: sans-serif;
    line-height: 24px;
}

/*图片样式*/
.img_position {
    text-align: center;
}

/*覆盖的边框*/
.border {
    position: relative;
    width: 100%;
    height: 180px;
    background-color: #000000;
    text-align: center;
    display: none;
}

.border span {
    font-size: 26px;
    color: #FFFFFF;
    position: relative;
    top: 30px;
}

.border img {
    position: relative;
    top: 60px;
}

.border_a {
    text-align: center;
    text-decoration: none;
    color: #C9A063;

}

.border_io {
    text-align: center;
    font-size: 12px;
    height: 100px;
    line-height: 100px;
}

.border_io span {
    color: #999999;
    min-height: 100px;
    margin: 0 10px;
}

.app-info{
    display: flex;
    flex-direction: row;
    width: 80%;
    margin-left: 10%;
}

.app-icon{
    display: flex;
    justify-content: center;
    flex-direction: row;
    align-items: center;
    width: 20%;
    min-width: 120px;
}

.app-icon img{
    display: flex;
    width: 100pt;
    height: auto;
}

.app-right{
    display: flex;
    width: 80%;
    flex-direction: column;
    justify-content: center;
}

.app-title{
    display: inline-block;
    font-size: 24px;
    font-weight: 500;
    font-family: monospace;
}

.app-into{
    display: inline-block;
    font-size: 13px;
    font-weight: 100;
    font-family: sans-serif;
    padding: 5px 0;
}

@media screen and (max-width: 480px) {
    .app-info{
        display: flex;
        flex-direction: row;
        width: 92%;
        margin-left: 4%;
    }
    .app-title{
        font-size: 18px;
    }
    
    .app-into{
        font-size: 11px;
    }
}