#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;font-size:14px;min-height:100vh;background-color:#666}:root{--base_color:#fb4869;--base_width:1184px;--base_black:#505361;--base_hover:#5e80f8;--base_active:#2a47af}#app,body,html{width:100%;height:100%;position:relative;font-family:Microsoft YaHei-Bold,Microsoft YaHei;padding:0;margin:0}a{text-decoration:none}a,a:visited{color:inherit}a:active,a:hover{text-decoration:none}.footer_fix{width:92px;background-color:#fff;border-radius:5px;position:fixed;top:25%;right:20px;box-shadow:0 0 30px 0 rgba(0,0,0,.08)}.footer_fix .is_item{width:100%;height:92px;display:flex;flex-direction:column;justify-content:center;align-items:center;cursor:pointer}.footer_fix .is_item img{width:30px;height:30px;margin-bottom:12px}.footer_fix .is_item .is_front{display:block}.footer_fix .is_item .is_back{display:none}.footer_fix .is_item:hover{background-color:#333;color:#fff}.footer_fix .is_item:hover .is_front{display:none}.footer_fix .is_item:hover .is_back{display:block}.line{width:80%;height:1px;background-color:#ccc;margin:0 auto}