#page_background{background-color:#000;height:100%;left:0;overflow:hidden;position:fixed;top:0;width:100%;z-index:1}#page_background .background_wrapper{height:100%;left:0;position:absolute;top:0;width:100%;z-index:1}#page_background .background_wrapper .bg_dots{background-image:url(../images/top/bg_dots.png);background-position:0 0;background-repeat:repeat;height:100%;position:absolute;transition:background-color .2s ease-in;width:100%;z-index:999}@media only screen and (max-width:950px){#page_background .background_wrapper .bg_dots{background-image:url(../images/top/bg_dots_sp.png)}}#page_background .background_wrapper .bg_dots.darken{background-color:rgba(0,0,0,.6)}#page_background .background_wrapper .video_layer{height:100%;position:absolute;width:100%;z-index:1}body.smartphone #page_background .background_wrapper .bg_dots{background-color:rgba(0,0,0,.4)}body.smartphone #page_background .background_wrapper .bg_dots.darken{background-color:rgba(0,0,0,.6)}