/* basic */
*{
	margin:0;
	padding:0;
	line-height:1.62;
}
.clear{
	clear:both;
}
html{
	font: 12px "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
	color:#fff;
}
img{
	border:none;
}
body{
	background:#000;
	background-size:cover;
	background-position:bottom right;
}




/* menu */
#menu{
	width:100%;
	height:80px;
	margin:0 auto;
	overflow:hidden;
	background:url(../img/menu_bg.png) repeat-x;
}
#menu ul{
	padding-left:30px;
	padding-top:12px;
	width:635px;
	margin:0 auto;
}
#menu li{
	float:left;
	width:140px;
	height:36px;
	margin-right:15px;
	list-style-type:none;
	overflow:hidden;
}
#menu .btnr{
	margin-right:0;
}
#menu a{
	display:block;
	width:140px;
	height:36px;
	text-indent:-9999px;
	overflow:hidden;
	margin-bottom:1px;
	background-image:url(../img/menu_btn.gif);
	background-repeat:no-repeat;
}
#menu a:hover{
	display:block;
	width:140px;
	height:35px;
	text-indent:-9999px;
	overflow:hidden;
	margin-top:1px;
	margin-bottom:0px;
	opacity:0.8;
	filter:alpha (opacity=80); /* IE */
}
#btn02{
	background-position:-140px 0;
}
#btn03{
	background-position:-280px 0;
}
#btn04{
	background-position:-420px 0;
}
#btn05{
	background-position:-560px 0;
}


/* Scrooll to Top */
#back-top {
	position: fixed;
	 bottom: 23px;
	right: 8px;
	z-index:10000;
}
#back-top a {
    width: 50px;
    display: block;
    text-align: center;
    font: 11px/100% Arial, Helvetica, sans-serif;
    text-transform: uppercase;
    text-decoration: none;
    outline: none;
}
#back-top a:hover {
    color: #000;
}
/* arrow icon (span tag) */
#back-top span {
    width: 40px;
    height: 26px;
    display: block;
    margin-bottom: 7px;
    background: #ccc;
    -webkit-border-radius: 20px;
    -moz-border-radius: 20px;
    border-radius: 20px;
    color:#ffffff;
    font-size:24px;
    padding-top:14px;
        line-height:0.5;
}
#back-top a:hover span {
    background-color: #eee;
    color:#999;
}