body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0; } 
body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; } 
h1, h2, h3, h4, h5, h6{ font-size:100%; } 
address, cite, dfn, em, var { font-style:normal; } 
code, kbd, pre, samp { font-family:couriernew, courier, monospace; } 
small{ font-size:12px; } 
ul, ol { list-style:none; } 
a { text-decoration:none; } 
a:hover { text-decoration:underline; } 
sup { vertical-align:text-top; } 
sub{ vertical-align:text-bottom; } 
legend { color:#000; } 
fieldset, img { border:0; } 
button, input, select, textarea { font-size:100%; } 
table { border-collapse:collapse; border-spacing:0; }

/*页头*/
.banner_box{
	width: 100%;
}
.banner_box .logo{
	width: 350px;
	margin:60px auto;
	display: block;
}
.nav_box{
	width:1100px;
	margin:0 auto;
	z-index: 10;
}
.nav_box{
	width:1100px;
	margin:30px auto;
}
.nav_box .logo{
	width: 80px;
	height: 80px;
	margin-right: 50px;
}
.nav_box ul{
	width: 100%;
	height:50px;
	background-color: #c0b9b0;
	display: flex;
}
.nav_box ul li{
	list-style-type: none;
	padding:0;
	margin:0px 0;
	width: 183.3333px;
	cursor: pointer;
}
.nav_box ul li a{
	display: block;
	text-decoration:none;
	margin:0;
	text-align: center;
	width: 100%;
	padding:0;
	display: block;
}
.nav_box ul li h3{
	font-size: 16px;
	color: #5b4125;
	text-align: center;
	line-height: 50px;
	margin-bottom: 10px;
	width: 100%;
	display: block;
}
.nav_box ul .active h3{
	background-color: #6c553c;
	color: #fff;
}

/*页脚*/
footer{
	width: 100%;
	border-top:1px solid #000000;
	padding: 30px 0;
}
footer .copyright{
	font-size:14px;
	line-height: 36px;
	color: #0a0401;
	width: 1100px;
	font-weight: 400;
	text-align: center;
	display:block;
	margin:10px auto;
}