.main {
	width: 750px;
	margin: 0 auto;
	position: relative;
}
.banner {
	width: 100%;
}
.banner img {
	width: 100%;
}
.main-bd {
	width: 100%;
	background: url(../images/all-bg.jpg);
	background-size: 100% 100%;
	padding: 47px 50px;
}
.main-center-bd {
	width: 100%;
	background: url(../images/index-bg.png);
	background-size: 100% 100%;
	padding: 95px 20px 35px 20px;
	height: 4512px;
}
.video-box {
	width: 100%;
}
.video-box video {
	width: 100%;
}
.index-bd {
	width: 100%;
	margin-top: 30px;
	border-radius: 18px;
    background: linear-gradient(#fff, #d7fffd);
    padding: 25px 0px;
    overflow: hidden;
}
.index-bd img {
	width: 100%;
}
.index-bd-one {
	height: 615px;
	background: url(../images/index-bg1.png);
	background-size: 100% 100%;
}
.index-bd-content {
	width: 100%;
	padding: 0 30px;
	font-size: 15px;
	line-height: 30px;
	text-indent: 30px;
	margin-top: 15px;
	text-align: justify;
}
.index-img-list {
	width: 100%;
	margin-top: 25px;
	display: flex;
	justify-content: space-between;
}
.index-img-list img {
	width: 197px;
}
.nav-bd {
	width: 100%;
	height: 120px;
	background: url(../images/nav-bg.png);
	background-size: 100% 100%;
	padding: 17px 24px 13px 24px;
	font-size: 0;
}
.nav-bd a {
	display: inline-block;
	height: 46px;
	line-height: 48px;
	width: 25%;
	text-align: center;
	font-size: 20px;
	font-weight: bold;
	color: #ffffff;
	text-shadow:1px 2px 1px rgba(0,0,0,0.5);
}
.nav-bd .active {
	color: #ffdd99;
}