.banner {
	width: 100%;
	margin-top: 168px;
	overflow: hidden;
}
.banners {
	width: 100%;
    position: relative;
    height: 100%;
}
.large_box {
	width: 560px;
    height: 560px;
	overflow: hidden;
}

.large_box img {
    max-width: 100%;
    height: auto;
	display: inline-block;
}
.large_box ul{
    height: 569px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}
.large_box li {
    font-size: 0;
    text-align: center;
    height: 100%;
    align-items: center;
    display: flex;
}

.small_box {
	width: 100%;
    height: 68px;
    overflow: hidden;
    position: absolute;
    bottom: 0;
}

.small_list{
	position: relative;
	float: left;
	width:89%;
	height: 68px;
	overflow: hidden;
}
.small_list ul {
	height: 68px;
	margin: 0;
	overflow: hidden;
}
.small_list ul li {
	position: relative;
	float: left;
	width:68px;
	margin:0 3px;
	border:1px solid #f2f2f2;
	box-sizing: border-box;
	cursor: pointer;
}
.small_list ul li video,
.small_list ul li img {
	display: block;
	max-width: 100%;
}

.small_list ul li .bun_bg {
	display: none;
	position: absolute;
	top: 0;
	left: 0;
	width:68px;
	height: 68px;
	background: #000;
	filter: alpha(opacity=60);
	-moz-opacity: 0.6;
	-khtml-opacity: 0.6;
	opacity: 0.6;
}

.small_list ul li.on .bun_bg {
	display: block;
}

.small_box .btn {
	display: block;
	width:10px;
	border-radius: 0;
	height:68px;
	background-color: #777;
	background-repeat: no-repeat;
	background-position: center center;
	cursor: pointer;
}


.left_btn {
	float: left;
	margin-right:0.5%;
	background-image: url(../img/lefts.png);
	background-size:15px;
}

.right_btn {
	float: right;
	background-image: url(../img/rights.png);
	background-size:15px;
}