/* 全局样式 */
body {
    color: #000;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji",
        "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}
a,
a:hover {
    text-decoration: none;
}
ul,
ol {
    list-style: none;
}
.container-fluid{
    padding-right: 0px;
    padding-left: 0px;
}

/* 设置导航条背景色 */
#pein_header {
    background-color: #3FA3E9;
}



/* 返回顶部 */
.back-top{
    position: fixed;
    bottom: 30px;
    right: 30px;
}