.course-class-infos {
position: relative;
    background: #666;
	top:50px;
	z-index: 10;
}           
.info-bg ,.cover-img-wrap{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
	z-index:-10;
}       
.cover-img-wrap {
    z-index: -1;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
	background-image: url(../images/service_banner.jpg);
}

.course-class-infos .banner-inner {
	width: 960px;
	color: #fff;
	position: absolute;
	top: 180px;
	left: 0;
	right: 0;
	margin: 0 auto;
}
.course-class-infos .banner-inner p {
    font-size: 18px;
    color: #fff;
    margin: 0;
}
.course-class-infos .banner-inner h3 {
    font-size: 50px;
    font-weight: 400;
    line-height: 64px;
    margin-top: 15px;
    margin-bottom: 43px;
}

.banner-outer,.detail-item {
	background-position: center 0
}

.banner-outer {
	height: 562px;
	width: 100%;
	background-image: url(../images/service_banner-b5e965bc53.jpg);
	padding-top: 1px;
	 z-index: 0;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

}

.detail-item,.detail-item .shadow-layer,.image-nav-outer .center-image-outer,.image-nav-outer .nav-item:after {
	background-image: url(../images/service_sprite-8ba7577d2d.png)
}

.banner-outer .banner-inner {
	width: 960px;
	margin: 180px auto auto;
	color: #fff;
	position: relative
}

.banner-outer .banner-inner p {
	font-size: 18px;
	color: #fff;
	margin: 0
}

.banner-outer .banner-inner h3 {
	font-size: 50px;
	font-weight: 400;
	line-height: 64px;
	margin-top: 15px;
	margin-bottom: 43px
}

.banner-outer .banner-inner a {
	display: inline-block;
	width: 115px;
	height: 45px;
	line-height: 45px;
	background-color: #fff;
	border: 1px solid #fff;
	border-radius: 2px;
	text-decoration: none;
	text-align: center;
	color: #09aeb0
}

.banner-outer .banner-inner a:hover {
	background-color: rgba(255,255,255,.85)
}

.banner-outer .banner-inner a:last-child {
	background-color: transparent;
	color: #fff;
	margin-left: 10px
}

.banner-outer .banner-inner a:last-child:hover {
	background-color: rgba(255,255,255,.3)
}

.detail-item {
	height: 949px;
	position: relative;
	overflow: hidden
}

.detail-item .shadow-layer {
	height: 362px;
	width: 1466px;
	position: absolute;
	bottom: 167px;
	background-position: -246px -986px;
	margin: auto auto auto -733px;
	z-index: 100;
	left: 50%
}

.detail-item .detail-inner {
	width: 960px;
	min-height: 100px;
	position: absolute;
	bottom: 167px;
	left: 50%;
	margin-left: -480px
}

.detail-item .column-item {
	width: 218px;
	height: 362px;
	box-sizing: border-box;
	position: absolute;
	bottom: 0;
	border-radius: 4px 4px 0 0;
	cursor: pointer;
	transition: height .2s ease-in-out;
	padding: 0 15px
}

.detail-item .column-item .column-inner-outer {
	content: " ";
	display: block;
	position: absolute;
	top: 0;
	left: 0;
	bottom: 0;
	right: 0;
	z-index: 120;
	opacity: 0;
	cursor: pointer
}

.detail-item .column-item:hover[data-index="0"] {
	height: 490px
}

.detail-item .column-item:hover[data-index="0"] .desc-inner {
	height: 300px
}

.detail-item .column-item:hover[data-index="1"] {
	height: 580px
}

.detail-item .column-item:hover[data-index="1"] .desc-inner {
	height: 355px
}

.detail-item .column-item:hover[data-index="2"] {
	height: 605px
}

.detail-item .column-item:hover[data-index="2"] .desc-inner {
	height: 333px
}

.detail-item .column-item:hover[data-index="3"] {
	height: 692px
}

.detail-item .column-item:hover[data-index="3"] .desc-inner {
	height: 395px
}

.detail-item .column-item .desc-inner {
	margin: auto;
	padding-top: 33px;
	box-sizing: border-box;
	overflow: hidden;
	transition: height .2s ease-in-out;
	height: 155px
}

.detail-item .column-item .desc-inner h6 {
	font-size: 28px;
	line-height: 28px;
	margin: 0;
	font-weight: 400
}

.detail-item .column-item .desc-inner a {
	color: #169bd5;
	font-size: 14px;
	display: inline-block;
	margin-top: 23px;
	text-decoration: none
}

.detail-item .column-item .desc-inner p {
	font-size: 18px;
	margin-top: 17px;
	line-height: 29px;
	color: #616c85;
	margin-bottom: 0
}

.detail-item .column-item .desc-inner p.desc {
	font-size: 14px;
	color: #616c85
}

.detail-item .column-item .image-outer {
	background-color: #fff;
	min-height: 20px;
	position: absolute;
	bottom: 0;
	width: 200px;
	left: 9px;
	border-radius: 4px 4px 0 0
}

.detail-item .column-item .image-outer .image {
	width: 75px;
	margin-top: 20px;
	height: 75px;
	background-image: url(../images/service_sprite-8ba7577d2d.png);
	background-position-y: -1375px
}

.detail-item .column-item[data-index="0"] {
	left: 0;
	background-color: #9fe8f5
}

.detail-item .column-item[data-index="0"] .image-outer {
	height: 190px;
	text-align: center
}

.detail-item .column-item[data-index="0"] .image-outer .image {
	background-position-x: -128px;
	display: inline-block
}

.detail-item .column-item[data-index="1"] {
	left: 237px;
	background-color: #8ee9dd;
	height: 397px
}

.detail-item .column-item[data-index="1"] .image-outer {
	height: 225px;
	text-align: center
}

.detail-item .column-item[data-index="1"] .image-outer .image {
	background-position-x: -28px;
	display: inline-block
}

.detail-item .column-item[data-index="2"] {
	left: 471px;
	background-color: #fcdaa5;
	height: 438px
}

.detail-item .column-item[data-index="2"] .image-outer {
	height: 267px;
	text-align: center
}

.detail-item .column-item[data-index="2"] .image-outer .image {
	background-position-x: -216px;
	display: inline-block
}

.detail-item .column-item[data-index="3"] {
	left: 706px;
	background-color: #f7c8c5;
	height: 465px
}

.detail-item .column-item[data-index="3"] .image-outer {
	height: 294px;
	text-align: center
}

.detail-item .column-item[data-index="3"] .image-outer .image {
	background-position-x: -293px;
	display: inline-block
}

.image-nav-outer {
	width: 100%;
	box-sizing: border-box;
	height: 682px;
	background-color: #f9f9fb;
	overflow: hidden;
	position: relative
}

.image-nav-outer .seperator-line {
	display: block;
	width: 960px;
	position: absolute;
	bottom: 0;
	height: 1px;
	background-color: #1bcbcd;
	left: 50%;
	margin-left: -480px
}

.image-nav-outer .seperator-line:after {
	content: " ";
	display: block;
	height: 0;
	width: 0;
	left: 50%;
	margin-left: -8px;
	top: -16px;
	position: absolute;
	border: 8px solid transparent;
	border-bottom: 8px solid #1bcbcd
}

.image-nav-outer .center-image-outer {
	width: 347px;
	height: 347px;
	background-position: -368px -1379px;
	color: #7885a0;
	margin: auto;
	text-align: center;
	line-height: 46px;
	font-size: 30px;
	box-sizing: border-box;
	padding-top: 137px
}

.image-nav-outer .image-nav-inner {
	width: 960px;
	position: relative;
	margin: 100px auto auto;
	min-height: 100px
}

.image-nav-outer .nav-item {
	width: 240px;
	height: 150px;
	position: absolute;
	cursor: pointer
}

.image-nav-outer .nav-item.left ul {
	text-align: right
}

.image-nav-outer .nav-item:after {
	content: " ";
	display: block;
	width: 75px;
	height: 75px;
	position: absolute;
	border-radius: 50%;
	background-color: #fff;
	border: 1px solid #edf1f2;
	box-shadow: 0 0 10px 1px rgba(189,207,207,.5);
	background-position-x: 1px;
	transition: background-color .2s ease-in-out,background-position-x .2s ease-in-out
}

.image-nav-outer .nav-item.active h4:after,.image-nav-outer .nav-item.active[data-index="0"]:before,.image-nav-outer .nav-item.active[data-index="1"]:before,.image-nav-outer .nav-item.active[data-index="2"]:before,.image-nav-outer .nav-item.active[data-index="3"]:before {
	background-color: #1bcbcd
}

.image-nav-outer .nav-item.active:after {
	background-color: #1bcbcd;
	background-position-x: -90px
}

.image-nav-outer .nav-item.active h4 {
	color: #1bcbcd
}

.image-nav-outer .nav-item h4:after,.image-nav-outer .nav-item:before {
	content: " ";
	height: 2px;
	display: block;
	position: absolute;
	background-color: #e9ecf2
}

.image-nav-outer .nav-item:before {
	width: 105px;
	border-radius: 1px;
	transition: background-color .2s ease-in-out
}

.image-nav-outer .nav-item[data-index="1"] {
	left: 64px;
	top: -23px
}

.image-nav-outer .nav-item[data-index="1"]:after {
	top: -10px;
	right: -25px;
	background-position-y: -1448px
}

.image-nav-outer .nav-item[data-index="1"] h4:after {
	top: 48px;
	left: 0
}

.image-nav-outer .nav-item[data-index="1"]:before {
	width: 115px;
	top: 70px;
	left: 203px;
	transform: rotate(23deg)
}

.image-nav-outer .nav-item[data-index="2"] {
	top: -23px;
	right: 0
}

.image-nav-outer .nav-item[data-index="2"]:after {
	top: -10px;
	left: -80px;
	background-position-y: -1685px
}

.image-nav-outer .nav-item[data-index="2"] h4:after {
	top: 48px;
	right: 76px
}

.image-nav-outer .nav-item[data-index="2"]:before {
	top: 71px;
	left: -144px;
	transform: rotate(-26deg)
}

.image-nav-outer .nav-item[data-index="0"] {
	left: 64px;
	top: 270px
}

.image-nav-outer .nav-item[data-index="0"]:after {
	top: -10px;
	right: -25px;
	background-position-y: -1528px
}

.image-nav-outer .nav-item[data-index="0"] h4:after {
	top: 48px;
	left: 0
}

.image-nav-outer .nav-item[data-index="0"]:before {
	width: 115px;
	top: 27px;
	left: 202px;
	transform: rotate(-22deg)
}

.image-nav-outer .nav-item[data-index="3"] {
	right: 0;
	top: 270px
}

.image-nav-outer .nav-item[data-index="3"]:after {
	top: -10px;
	left: -80px;
	background-position-y: -1605px
}

.image-nav-outer .nav-item[data-index="3"] h4:after {
	top: 48px;
	right: 76px
}

.image-nav-outer .nav-item[data-index="3"]:before {
	width: 104px;
	top: 27px;
	left: -143px;
	transform: rotate(24deg)
}

.image-nav-outer .nav-item h4 {
	font-size: 30px;
	color: #60697c;
	font-weight: 400;
	width: 163px;
	margin: 0;
	box-sizing: border-box;
	line-height: 30px;
	padding: 0 0 13px 13px;
	border-bottom: 7px solid #1bcbcd;
	transition: color .2s ease-in-out
}

.image-nav-outer .nav-item h4:after {
	width: 208px;
	top: 48px;
	transition: background-color .2s ease-in-out
}

.image-nav-outer .nav-item ul {
	width: 163px;
	box-sizing: border-box;
	margin-top: 16px
}

.image-nav-outer .nav-item ul li {
	width: 100%;
	height: 30px;
	line-height: 30px;
	font-size: 14px;
	color: #7b8390
}

.table-outer {
	padding: 22px 0;
	background-color: #f3f3f4;
	box-sizing: border-box;
	transition: height .2s ease-in-out;
	overflow: hidden;
	position: relative
}

.table-outer ul {
	height: 46px;
	width: 940px;
	margin: 8px auto 20px
}

.table-outer ul li {
	float: left;
	width: 84px;
	line-height: 46px;
	cursor: pointer;
	color: #7b8390;
	margin-left: 35px;
	transition: color .3s ease-in-out
}

.table-outer ul li.active {
	border-bottom: 3px solid #1bcbcd
}

.table-outer ul li.active,.table-outer ul li:hover {
	color: #1bcbcd
}

.table-outer ul li:first-child {
	margin-left: 0
}

.table-outer[data-index="0"] {
	height: 458px
}

.table-outer[data-index="1"] {
	height: 368px
}

.table-outer[data-index="2"] {
	height: 608px
}

.table-outer[data-index="3"] {
	height: 323px
}

.table-outer table {
	margin: auto auto auto -470px;
	opacity: 0;
	transition: opacity .2s ease-in-out;
	position: absolute;
	left: 50%
}

.table-outer table.show {
	opacity: 1
}

.table-outer table thead {
	color: #2f3542
}

.table-outer table thead th {
	background-color: #ebebed
}

.table-outer table tbody {
	color: #7b8390
}

.table-outer table tbody tr td {
	padding-left: 20px;
	font-size: 14px;
	line-height: 26px
}

.table-outer table tbody tr td.normal,.table-outer table tbody tr td:nth-child(2) {
	font-size: 12px
}

.table-outer table tbody tr td.normal {
	border-left: 0
}

.table-outer table tbody tr:last-child td,.table-outer table tbody tr:last-child tr,.table-outer table thead tr:last-child td,.table-outer table thead tr:last-child tr {
	border-bottom: 1px solid #dfe1e3
}

.table-outer table tbody td,.table-outer table tbody th,.table-outer table thead td,.table-outer table thead th {
	height: 45px;
	margin: 0;
	padding: 0;
	border-right: 1px solid #dfe1e3;
	border-top: 1px solid #dfe1e3;
	box-sizing: border-box
}

.table-outer table tbody td:first-child,.table-outer table tbody th:first-child,.table-outer table thead td:first-child,.table-outer table thead th:first-child {
	min-width: 100px;
	width: 100px;
	border-left: 1px solid #dfe1e3
}

.table-outer table tbody td:nth-child(2),.table-outer table tbody th:nth-child(2),.table-outer table thead td:nth-child(2),.table-outer table thead th:nth-child(2) {
	min-width: 740px;
	width: 740px
}

.table-outer table tbody td:last-child,.table-outer table tbody th:last-child,.table-outer table thead td:last-child,.table-outer table thead th:last-child {
	min-width: 100px;
	width: 100px
}

.letter-outer {
	width: 100%;
	height: 821px;
	background-color: #fff;
	background-image: url("../images/xinfeng.png");
	background-repeat: no-repeat;
	background-position: center bottom;
	position:relative;
}
.letter-outer .letter-word{
	width:560px;
	height:200px;
	position:absolute;
	top:40%;
	left:50%;
	transform:translate(-50%,-50%);
}
.letter-outer .letter-word p{
	margin:25px 0;
	margin-top:0px;
	padding:0;
	font-size:18px;
	letter-spacing: 2px;
	color:#000;
	font-weight: 500;
}
.letter-outer .letter-word .letter-word-bottom{
	line-height: 40px;
	box-sizing: border-box;
	padding-left:36px;
}