.head {
	width: 1200px;
	background: none;
	/*background: url(../img/sy.png) no-repeat left center;*/
	background-size: 100% 100%;
	margin: auto;
	height: 366px;
}

#headBox {
	width: 1200px;
	height: 100px;
	margin: 0 auto;
	position: relative; /* 或 absolute/fixed，根据需要 */
	z-index: 10;
}

#navbtns {
	width: 1200px;
	height: 60px;
	/*background: #5c7ba9;*/
	/*background: rgba(177,200,226,0.5);*/
	background: rgba(132, 187, 201, 0.4);
	margin: 0 auto;
	z-index: 1;
}

#navbtns ul {
	width: 100%;
	display: flex;
}

#navbtns ul li {
	height: 60px;
}

#navbtns ul li a {
	display: block;
	font-size: 20px;
	font-weight: normal;
	padding-top: 0px;
	font-weight: bold;
	line-height: 30px;
	color: #00419f;
	width: 171px;
	height: 60px;
	text-align: center;
	line-height: 60px;
}

#navbtns ul li a:hover {
	text-decoration: none;
}

#navbtn-bot {
	width: 1200px;
	height: 36px;
	background: #EEEEEE;
}

#navbtn-bot ul li a {
	color: #000;
	color: #000;
	font-size: 15px;
	line-height: 36px;
}

#navbtnsbox ul {
	margin-left: 77px;
	display: none;
	display: flex;
}

#navbtn-bot ul li a:hover {
	background: #EEEEEE;
	color: #005193;
	text-decoration: none;
}

#navbtn-bot ul li {
	margin: 0 15px;
}

.hides {
	color: #fff !important;
	background: #669fd0;
	background: url(../img/nav.png)  center center;
}

.serbox {
	width: 1200px;
	height: 270px;
	margin: 0 auto;
	position: relative; /* 或 absolute/fixed，根据需要 */
	z-index: 0;
}

.serbox img{
	width: 1200px;
    height: 366px;
    position: relative;
	z-index: 0;
}

.serbox form {
	float: right;
	margin-top: 30px;
}

#query {
	border: 0;
	min-width: 310px;
	height: 38px;
	line-height: 40px;
	border: 1px #d5d5d5 solid;
	display: inline;
	padding: 0;
	padding-left: 10px;
	outline: none;
}

#serbtn {
	width: 80px;
	height: 40px;
	border: 0;
	display: inline;
	float: right;
	letter-spacing: 2px;
	cursor: pointer;
	background: url(../img/serbtn.png) no-repeat left center;
	background-size: 100% 100%;
}