/** ?ㄥ??峰?娓?? **/
/*@font-face {
    font-family:HarmonyOS_Sans_SC;
    font-style: normal;
    font-display: fallback;
    src: url('../font/HarmonyOSHans-Light.woff2') format("woff2");
    font-weight: normal;
}*/
@font-face {
    font-family:HarmonyOS_Sans_SC;
    font-style: normal;
    font-display: fallback;
    src: url('../font/HarmonyOSHans-Regular.woff2') format("woff2");
    font-weight: normal;
}
@font-face {
    font-family:HarmonyOS_Sans_SC;
    font-style: normal;
    font-display: fallback;
    src: url('../font/HarmonyOSHans-Medium.woff2') format("woff2");
    font-weight: bold
}
/** 璁剧疆榛?璁ゅ?浣? **/
body, button, input, select, textarea {
    font:16px HarmonyOS_Sans_SC,Microsoft YaHei UI,Helvetica Neue,Helvetica,PingFang SC,寰?蒋??榛?,Tahoma,Arial,sans-serif;
    color: #333;
}
/** 娓??ゅ??澶?杈硅? **/
body, h1, h2, h3, h4, h5, h6, hr, p,
blockquote, /* structural elements 缁?????绱? */
dl, dt, dd, ul, ol, li, /* list elements ??琛ㄥ??绱? */
pre, /* text formatting elements ?????煎???绱? */
form, fieldset, legend, button, input, textarea, /* form elements 琛ㄥ????绱? */
th, td, /* table elements 琛ㄦ?煎??绱? */
img /* img elements ?剧????绱? */
{
    border: medium none;
    margin: 0;
    padding: 0;
}
h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
}
em {
    font-style: normal;
}
/** ??缃???琛ㄥ??绱? **/
ul, ol {
    list-style: none;
}
/** ??缃???炬?ュ??绱? **/
a {
    text-decoration: none;
    color: #424d68;
    -moz-transition:.3s; /* Firefox 4 */
    -webkit-transition:.3s; /* Safari and Chrome */
    -o-transition:.3s; /* Opera */
    transition:.3s;
}
a:hover {
    text-decoration: none;
    -moz-transition:.3s; /* Firefox 4 */
    -webkit-transition:.3s; /* Safari and Chrome */
    -o-transition:.3s; /* Opera */
    transition:.3s;
}
/** ??缃??剧????绱? **/
img {
    border: 0;
}
/** ??缃?〃?煎??绱? **/
table {
    border-collapse: collapse;
    border-spacing: 0;
}
/** 璁剧疆?ㄥ??峰? **/
html,body{
    min-width: 1340px;
    background-color: #fff;
}
/**???伴《??*/
.to-top{
    position: fixed;
    right: 20px;
    bottom: 30px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    padding: 10px;
    background-color: #FFFFFF;
    box-shadow: 0 2px 5px rgba(0,0,0,.2);
    border-radius: 12px;
    z-index: 999;
    visibility: hidden;
}
.to-top-img{
    width: 30px;
    height: 30px;
    background: url("../img/to-top.png")  no-repeat center center ;
    background-size: contain;
}
/*
<div class="to-top">
  <div class="to-top-img"></div>
</div>
*/