*{margin:0;padding:0;list-style:none;}
a{text-decoration:none;}

#nav {
	width: 60em; /* 1000 */
	font-family: 'MicroSoft Yahei', sans-serif;
	font-weight: 400;
	position: absolute;
	top: 25%;
	left: 50%;
	margin-left: -30em; /* 30 480 */
}
#nav > a {
	display: none;
}
#nav li {
	position: relative;
}
#nav li a {
	color: #444;
	display: block;
}
#nav li a:active {
	background-color: #c00 !important;
}
#nav span:after {
	width: 0;
	height: 0;
	border: 0.313em solid transparent; /* 5 */
	border-bottom: none;
	border-top-color: #efa585;
	content: '';
	vertical-align: middle;
	display: inline-block;
	position: relative;
	right: -0.313em; /* 5 */
}
/* first level */

#nav > ul {
	height: 3.75em; /* 60 */
	
}
#nav > ul > li {
	width: 15%;
	height: 100%;
	float: left;
}
#nav > ul > li > a {
	height: 100%;
	font-size: 1.5em; /* 24 */
	line-height: 2.5em; /* 60 (24) */
	text-align: center;
}

#nav > ul > li:hover > a,  #nav > ul:not( :hover ) > li.active > a {
	color: #5da005;
}
/* second level */

#nav li ul {
	display: none;
	position: absolute;
	top: 100%;
}
#nav li:hover ul {
	display: block;
	left: 0;
	right: 0;
}
#nav li:not( :first-child ):hover ul {
	left: -1px;
}
#nav li ul a {
	font-size: 1.25em; /* 20 */
	padding: 0.75em; /* 15 (20) */

}
#nav li ul li a:hover,  #nav li ul:not( :hover ) li.active a {
	color:#5da005;
}
 @media only screen and ( max-width: 62.5em ) /* 1000 */ {
#nav {
	width: 100%;
	position: static;
	margin: 0;
}
}
 @media only screen and ( max-width: 40em ) /* 640 */ {
html {
	font-size: 75%; /* 12 */
}
#nav {
	position: relative;
	top: auto;
	left: auto;
}
#nav > a {
	width: 3.125em; /* 50 */
	height: 3.125em; /* 50 */
	text-align: left;
	text-indent: -9999px;
	background-color: #e15a1f;
	position: relative;
}
#nav > a:before,  #nav > a:after {
	position: absolute;
	border: 2px solid #fff;
	top: 35%;
	left: 25%;
	right: 25%;
	content: '';
}
#nav > a:after {
	top: 60%;
}
#nav:not( :target ) > a:first-of-type,  #nav:target > a:last-of-type {
	display: block;
}
/* first level */

#nav > ul {
	height: auto;
	display: none;
	position: absolute;
	left: 0;
	right: 0;
}
#nav:target > ul {
	display: block;
}
#nav > ul > li {
	width: 100%;
	float: none;
}
#nav > ul > li > a {
	height: auto;
	text-align: left;
	padding: 0 0.833em; /* 20 (24) */
}
#nav > ul > li:not( :last-child ) > a {
	border-right: none;
	border-bottom: 1px solid #cc470d;
}
/* second level */

#nav li ul {
	position: static;
	padding: 1.25em; /* 20 */
	padding-top: 0;
}
}
/*
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尊重他人劳动成果;
转载请保留97站长网链接 - www.97zzw.com
*/