@import url(pc.css) screen and (min-width:800px); /* 横幅800px以上 */
@import url(phone.css) screen and (max-width:799px); /* 横幅799px以下 */

.atmark:before{
	content:"@";
}
#return{
	display:none;
	position:fixed;
	text-indent:-9999px;
	opacity:0.7;	
}
#return a{
	display:block;
	width:82px;
	height:42px;
	background-image:url(return.png);
	background-repeat:no-repeat;
	background-position:left top;
	opacity:0.7;	
}

#menu a{
	color:#06F;	
}
.attention{
	background-color:#C00;
	font-weight:bold;
	color:#fff;
	padding:10px 20px;
	margin:20px 10px;	
}