* {
    margin: 0;
    padding: 0;
}

body {
    margin: 0;
    font-family: "Microsoft YaHei", "微软雅黑", "STHeiti", "WenQuanYi Micro Hei", SimSun, sans-serif;
    font-size: 14px;
    line-height: 140%;
}

ul, li {
    list-style: none;
}

a {
    text-decoration: none;
    color: #333333;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: normal;
}

.flex {
    display: flex;
}

.container {
    width: 1380px;
    margin: 0 auto;
}

@media (max-width: 768px){
    .container {
        width: auto;
        margin: 0 auto;
        padding: 0 10px;
        overflow: hidden;
    }
}

.between {
    display: flex;
    justify-content: space-between;
}

.column {
    flex-direction: column;
}

.items-center {
    display: flex;
    align-items: center;
}

.text-overflow {
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    -o-text-overflow: ellipsis;
    white-space: nowrap;
}

.mt-10 {
    margin-top: 10px;
}

.ml-10 {
    margin-left: 10px;
}

.mr-10 {
    margin-right: 10px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mr-20 {
    margin-right: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.clearfix:after {
    content: '';
    display: block;
    clear: both;
}

.grey {
    color: grey;
}

.qr_code {
    border: 1px solid #eee;
    border-radius: 5px;
    padding: 45px 0;
}

.bg-fff {
    background: #ffffff;
}

.link-color {
    color: dodgerblue;
}