.main{position:relative;overflow:hidden;background-size:100% 100%;background-image:url('../images/public/pc_bg.png');background-repeat:no-repeat}.m-w{margin:0 auto;width:1200px}.is-sidebar{position:fixed;right:80px;top:50%;z-index:999;transform:translateY(-50%);width:267px;height:670px;background-image:url(../images/slidebar/slide_bg.png);background-size:100% 100%;background-repeat:no-repeat}.is-sidebar .slidebar-close{cursor:pointer;position:absolute;right:0;top:-20px;width:20px;height:20px;opacity:.8;background:url(../images/public/icon-close.png) no-repeat 100% / 100%}.is-sidebar .slidebar-close:hover{opacity:1}.is-sidebar .slidebar-content{position:absolute;left:57px;top:130px}.is-sidebar .slidebar-content .slidebar-item{margin-top:6px;display:block;width:193px;height:60px}.is-sidebar .slidebar-content .slidebar-item:hover{opacity:.9}.is-sidebar .slidebar-content .slidebar-item:nth-child(even){margin-left:45px}.is-sidebar-btn{cursor:pointer;display:none;position:fixed;right:80px;top:50%;z-index:999;transform:translateY(-50%);bottom:12px;width:55px;height:55px;transform:translateX(-50%);background-image:url(../images/scroll_top.png);background-size:100% 100%}@media screen and (max-width:750px){.main{padding:0 .4rem;position:relative;overflow:hidden}.m-w{margin:0 auto;width:100%}}