@media (max-height:899px){.left-menu .left-menu-item{height:39px;margin-bottom:2px}.left-menu .left-menu-group-title{margin-top:8px;margin-bottom:8px}.left-menu .left-menu-group{margin-bottom:8px}}@media (max-height:820px){.left-menu .left-menu-item{height:38px}.left-menu .left-menu-group-title{margin-top:8px;margin-bottom:8px}.left-menu .left-menu-group{margin-bottom:8px}}@media (max-height:800px){.left-menu .left-menu-item{height:40px}.left-menu{scrollbar-width:thin;max-height:calc(100vh - 120px);overflow:hidden auto}}@media (max-height:768px){.left-menu{max-height:calc(100vh - 100px)}}.nav-icon-item{position:relative}.nav-icon-item:hover{color:#2468f2;background:#fff;margin-right:0}.nav-icon-item:after{content:"";background-image:url(../media/icon-bg-b.cf8b5e73.png);background-position:50%;background-repeat:no-repeat;background-size:contain;width:16px;height:19px;position:absolute;bottom:-19px;right:-1px}.nav-icon-item:before{content:"";background-image:url(../media/icon-bg-t.c47f0223.png);background-position:50%;background-repeat:no-repeat;background-size:contain;width:16px;height:19px;position:absolute;top:-19px;right:-1px}