.zt_list {padding:30px 0 0 30px; box-sizing: border-box;}
.zt_list .kj_nav li a {
	text-decoration: none !important;
}
.zt_list .kj_nav li.kj_active {
	border: 0;
}
.kc_list_box {
	width: 100%;
	height: auto;
	background: #ffffff;
	padding: 20px 40px;
	box-sizing: border-box;
	overflow: hidden;
	margin-bottom: 30px;
}
.kc_list_box h2 {
	font-size: 28px;
	width: 100%;
	overflow: hidden;
	line-height: 1.3em;
}
.kc_list_title {
	width: 100%;
	overflow: hidden;
	padding: 20px 0 10px 0;
}
.kc_list_title h2 {
	width: 50%;
	float: left;
	text-align: left;
	font-size: 28px;
	line-height: 40px;
	margin: 0;
}
.kc_list_title span {
	display: block;
	width: 50%;
	float: right;
	text-align: right;
	line-height: 40px;
	font-size: 16px;
}
.kc_list_title span a {
	color: #999999;
}
.kc_list {
	width: 100%;
	margin-top: 20px;
}
.kc_list ul {
	width: 100%;
}
.kc_item {
	width: 23%;
	float: left;
	margin-right: 2.66%;
	margin-bottom: 30px;
	overflow: hidden;
	border-radius: 10px;
	background: #f2f2f2;
	transition: 0.2s;
}
.kc_item2 {
	width: 18%;
	margin-right: 2.5%;
}
.kc_item:nth-child(4n) {
	margin-right: 0;
}
.kc_item2:nth-child(4n) {
	margin-right: 2.5%;
}
.kc_item2:nth-child(5n) {
	margin-right: 0;
}

.kc_item a {
	width: 100%;
	display: block;
	text-decoration: none;
}
.kc_img {
	width: 100%;
	height: 0;
    padding-top: calc(100% * 4 / 6);
	position: relative;
	border-radius: 10px;
	overflow: hidden;
}
.kc_item2 .kc_img {
    padding-top: calc(100% * 6 / 6);
}
.kc_img img {
	width: 100%;
	height: auto;
	min-height: 100%;
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	margin:auto;
}
.kc_info {
	display: block;
	position: absolute;
	bottom: 10px;
	right: 10px;
}
.kc_info div {
	display: block;
	float: left;
	color: #ffffff;
	line-height: 1.5;
	padding: 0 12px;
	border-radius: 20px;
	background: #aaaaaa;
	margin-left: 6px;
}
.kc_info div:nth-child(2)  {
	background: #54b968;
}
.kc_info2 div:nth-child(2)  {
	#background: #ffb400;
	background: orange;
}
.kc_info2 div:nth-child(2) span:nth-child(2) {
	text-decoration: line-through;
	margin-left: 6px;
	opacity: 0.6;
}
.kc_name {
	width: 100%;
	overflow: hidden;
	padding: 15px 20px;
	box-sizing: border-box;
}
.kc_name span {
	width: 100%;
	display: block;
	white-space: nowrap; 
    overflow: hidden;
    text-overflow:ellipsis;
}
.kc_name span:nth-child(1) {
	font-size: 16px;
	color: #000000;
}
.kc_name span:nth-child(2) {
	color: #999999;
	margin-top: 5px;
}
.kc_item:hover {
	transform: translateY(-3px);
	box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0.1);
	background: #54b968;
	color: #ffffff !important;
}
.kc_item:hover .kc_name span {
	color: #ffffff !important;
}
.kc_item2 .kc_info div {
	background: #01b4eb;
}
.kc_list_box h2 span {
	color: #f05e16;
}
.kc_ss_list {
	width: 100%;
	margin-top: 40px;
}
.kc_ss_list ul li {
	width: 100%;
	margin-bottom: 30px;
	padding-bottom: 30px;
	border-bottom: 1px solid #f2f2f2;
	
}
.kc_ss_list ul li a {
	display: block;
	width: 100%;
	display: flex;
	text-decoration: none;
	
}
.kc_ss_left {
	width: 250px;
	height: auto;
	border-radius: 10px;
	overflow: hidden;
	transition: 0.2s;
}
.kc_ss_left img {
	width: 100%;
	height: auto;
}

.kc_ss_right {
	flex: 1;
	padding-left: 60px;
	box-sizing: border-box;
}
.kc_ss_right h3 {
	width: 100%;
	font-size: 24px;
	color: #333333;
	margin-top: 5px;
	transition: 0.2s;
}
.kc_ss_js {
	width: 100%;
	color: #999999;
	font-size: 18px;
	margin-top: 20px;
}
.kc_ss_js span {
	display: inline-block;
	border-bottom: 1px solid #f2f2f2;
	padding-bottom: 5px;
}
.kc_ss_info {
	width: 100%;
	margin-top: 30px;
}
.kc_ss_info div {
	display: block;
	float: left;
	color: #ffffff;
	line-height: 1.5;
	padding: 0 12px;
	border-radius: 20px;
	background: #aaaaaa;
	margin-right: 6px;
}
.kc_ss_info div:nth-child(2)  {
	background: #54b968;
}
.kc_ss_info2 div:nth-child(2)  {
	background: #ffb400;
}
.kc_ss_info2 div:nth-child(2) span:nth-child(2) {
	text-decoration: line-through;
	margin-left: 6px;
	opacity: 0.6;
}
.kc_ss_list ul li a:hover .kc_ss_left {
	box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0.1);
}

.kc_ss_list ul li a:hover .kc_ss_right h3 {
	color: #16baf0;
}
/*课程详情*/
.ke_section {
	width: 100%;
	display: flex;
	overflow: hidden;
	padding-bottom: 50px;
}
.ke_left {
	flex: 1;
	margin-right: 20px;
}
.ke_right {
	width: 380px;
	background: #ffffff;
	box-sizing: border-box;
	padding: 40px 30px 30px 30px;
}
.ke_js {
	width: 100%;
}
.ke_js_img {
	width: 45%;
	height: 0;
    padding-top: calc(45% * 6 / 6);
	overflow: hidden;
	position: relative;
	margin: 0 auto;
	border-radius: 200px;
}
.ke_js_img img {
	width: 100%;
	height: auto;
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	margin:auto;
}
.ke_js_info {
	width: 100%;
	margin-top: 25px;
}
.ke_js_info h3 {
	width: 100%;
	font-size: 28px;
	text-align: center;
}
.ke_js_info p {
	width: 100%;
	text-align: center;
	color: #999999;
	margin-top: 15px;
	line-height: 1.8;
}
.ke_ping {
	width: 100%;
	margin-top: 40px;
}
.ke_ping_title {
	width: 100%;
	border-bottom: 1px solid #f0f0f0;
	padding-bottom: 10px;
	font-size: 18px;
	color: #000000;
}
.ke_ping_list {
}
.ke_ping_item {
	width: 100%;
	overflow: hidden;
	margin-top: 30px;
}
.ke_ping_user {
	width: 100%;
	overflow: hidden;
	display: flex;
}
.ke_ping_user_img {
	width: 40px;
	height: 40px;
	overflow: hidden;
	border-radius: 20px;
}
.ke_ping_user_img img {
	width: 100%;
	height: auto;
}
.ke_ping_user_info {
	flex: 1;
	margin-left: 20px;
}
.ke_ping_user_info p {
	width: 100%;
	display: block;
	margin: 0;
	padding: 0;
	font-size: 16px;
}
.ke_ping_user_info span {
	display: block;
	width: 100%;
	color: #999999;
}
.ke_ping_text {
	width: 100%;
	padding: 15px;
	box-sizing: border-box;
	border-radius: 6px;
	background: #f2f2f2;
	text-align: justify;
	margin-top: 15px;
	position: relative;
	line-height: 1.5;
}
.ke_ping_text::before {
	content: '';
	display: block;
	width: 12px;
	height: 12px;
	background: #f2f2f2;
	position: absolute;
	left: 14px;
	top: -5px;
	transform: rotate(45deg);
}

.ke_info_box {
	width: 100%;
	background: #ffffff;
	padding: 30px;
	box-sizing: border-box;
}
.ke_info_box h1 {
	width: 100%;
	font-size: 28px;
	font-weight: bold;
}
.ke_info {
	width: 100%;
	overflow: hidden;
	margin-top: 20px;
}
.ke_info div {
	float: left;
	margin-right: 10px;
	color: #ffffff;
	line-height: 1.5;
	padding: 0 15px;
	border-radius: 20px;
	background: #aaaaaa;
	margin-right: 10px;
}
.ke_info div:nth-child(1)  {
	background: #54b968;
}
.ke_info2 div:nth-child(1)  {
	background: #ffb400;
}
.ke_info2 div:nth-child(1) span:nth-child(2) {
	text-decoration: line-through;
	margin-left: 6px;
	opacity: 0.6;
}
.ke_info div:nth-child(3) {
	background: none;
	color: #999999;
	margin-left: 30px;
	background: url(../images/kc_view.png) no-repeat center left;
	background-size: auto 50%;
	padding-left: 25px;
	
}
.ke_jianjie {
	width: 100%;
	line-height: 1.8;
	color: #666666;
	margin-top: 20px;
	text-align: justify;
	font-size: 16px;
}
.ke_list {
	width: 100%;
	padding: 30px;
	box-sizing: border-box;
	margin-top: 20px;
	background: #ffffff;
}
.ke_list h2 {
	width: 100%;
	font-size: 20px;
	border-bottom: 1px solid #f0f0f0;
	margin: 0;
	padding: 10px 0 20px 0;
	font-weight: bold;
}
.ke_list ul {
	width: 100%;
}
.ke_item {
	width: 100%;
}
.ke_item a {
	display: block;
	width: 100%;
	padding: 20px 30px;
	box-sizing: border-box;
	border-bottom: 1px dashed #f0f0f0;
	transition: 0.2s;
	text-decoration: none;
}
.ke_item a:hover {
	background: #fffaee;
	border-bottom: 1px dashed #f1e3c1;
}
.ke_item a div {
	width: 100%;
	position: relative;
	box-sizing: border-box;
	padding-left: 70px;
}
.ke_item a div::before {
	content: '';
	display: block;
	width: 45px;
	height: 45px;
	background: url(../images/ke_item_icon_1.png) no-repeat;
	background-size: 100% 100%;
	position: absolute;
	left: 0;
	top: 3px;
	transition: 0.2s;
}
.ke_item a div h3 {
	font-size: 18px;
	margin: 0;
	padding: 5px 0;
	color: #333333;
}
.ke_item a div span {
	display: block;
	margin-top: 5px;
	color: #999999;
	background: url(../images/kc_view.png) no-repeat center left;
	background-size: auto 50%;
	padding-left: 25px;
}
.ke_item a:hover div::before {
	background: url(../images/ke_item_icon_2.png) no-repeat;
	background-size: 100% 100%;
	transform: scale(1.05);
}
.ke_item a:hover div h3 {
	color: #23527c;
}
/*视频详情*/
.kc_video_section {
	width: 100%;
	background: #262a2d;
	padding: 50px 0;
}
.kc_video_box {
	width: 100%;
	display: flex;
}
.kc_video_left {
	flex: 1;
	margin-right: 60px;
}
.kc_video_right {
	width: 380px;
	background: #ffffff;
	box-sizing: border-box;
	padding: 40px 30px 30px 30px;
}
.kc_v_img {
	width: 100%;
}
.kc_v_img img {
	width: 100%;
	height: auto;
}
.kc_v_title {
	width: 100%;
	display: flex;
	overflow: hidden;
}
.kc_v_title h1 {
	color: #ffffff;
	font-weight: bold;
	flex: 1;
	font-size: 28px;
	line-height: 40px;
	margin: 0;
	white-space: nowrap; 
    overflow: hidden;
    text-overflow:ellipsis;
}
.kc_v_title span {
	display: block;
	width: 150px;
	line-height: 40px;
	text-align: right;
}
.kc_v_title span a {
	display: inline-block;
	background: url(../images/kc_back.png) no-repeat center left;
	background-size: auto 30%;
	padding-left: 20px;
	color: #777777;
	font-size: 16px;
}
.kc_v {
	width: 100%;
	height: auto;
	margin-top: 20px;
	box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0.1);
}
.kc_v img {
	width: 100%;
	height: auto;
}
.kc_v_title2 {
	width: 100%;
	color: #ffffff;
	display: flex;
	padding: 30px 0;
}
.kc_v_title2 h2 {
	flex: 1;
	font-size: 18px;
	line-height: 30px;
	margin: 0;
}
.kc_v_title2 div {
	width: 150px;
	text-align: right;
}
.kc_v_title2 div span {
	display: inline-block;
	text-align: right;
	color: #777777;
	background: url(../images/kc_view.png) no-repeat center left;
	background-size: auto 26%;
	padding-left: 25px;
	line-height: 30px;
}
.kc_v_more {
	width: 100%;
	overflow: hidden;
}
.kc_v_more a {
	display: block;
	float: left;
	line-height: 20px;
	color: #777777;
	padding-left: 15px;
	background: url(../images/kc_back.png) no-repeat center left;
	background-size: auto 60%;
	font-size: 16px;
}
.kc_v_more a:nth-child(2) {
	float: right;
	padding-left: 0;
	padding-right: 15px;
	background: url(../images/kc_next.png) no-repeat center right;
	background-size: auto 60%;
}
.kc_v_erm {
	width: 100%;
	background: #ffffff;
	box-sizing: border-box;
	padding: 80px 30px;
	overflow: hidden;
}
.kc_v_erm_left {
	width: 65%;
	float: left;
	background: #f2f2f2;
	border-radius: 10px;
	text-align: center;
	padding: 50px 0;
}
.kc_v_erm_right {
	width: 30%;
	float: right;
	text-align: center;
}
.kc_v_erm_left div:nth-child(1) {
	width: 100%;
	margin-bottom: 30px;
}
.kc_v_erm_left div:nth-child(1) span {
	display: inline-block;
	font-size: 20px;
	font-weight: bold;
	border-bottom: 1px solid #e5e5e5;
}
.kc_v_erm_left div:nth-child(2) {
	width: 100%;
}
.kc_v_erm_left div:nth-child(2) img {
	width: 40%;
	margin: 0 auto;
}
.kc_v_erm_right div:nth-child(1) {
	width: 100%;
	margin-bottom: 20px;
	margin-top: 90px;
}
.kc_v_erm_right div:nth-child(1) span {
	display: inline-block;
	font-size: 16px;
}
.kc_v_erm_right div:nth-child(2) {
	width: 100%;
}
.kc_v_erm_right div:nth-child(2) img {
	width: 50%;
	margin: 0 auto;
}

.kc_v_play {
	width: 100%;
	height: auto;
}
.kc_v_play video {
	width: 100%;
	height: auto;
	display: block;
}



.v_ping {
	height: 400px;
	overflow-y: auto;
	padding-right: 10px;
	box-sizing: border-box;
}
@media (max-width: 992px){
	.kc_item {
		width: 48%;
		float: left;
		margin-right: 0;
		margin-bottom: 20px;
		border-radius: 6px;
	}
	.kc_img {
		border-radius: 6px;
	}
	.kc_item2 {
		width: 47%;
		margin-right: 0%;
	}
	.kc_item:nth-child(4n) {
		margin-right: 0;
	}
	.kc_item2:nth-child(4n) {
		margin-right: 0%;
	}
	.kc_item2:nth-child(5n) {
		margin-right: 0;
	}
	.kc_item:nth-child(2n) {
		float: right;
	}
	.kc_info {
		bottom: 5px;
		right: 5px;
		font-size: 12px;
	}
	.kc_info div {
		padding: 0 6px;
		margin-left: 4px;
	}
	.kc_name {
		padding: 10px 10px;
		box-sizing: border-box;
	}
	.kc_name span:nth-child(1) {
		font-size: 14px;
	}
	.kc_name span:nth-child(2) {
		font-size: 12px;
	}
	.kc_list_box h2 {
		font-size: 16px;
	}
	.kc_ss_left {
		width: 35%;
		border-radius: 0;
	}
	.kc_ss_left img {
		border-radius: 6px;
	}
	.kc_ss_list ul li a:hover .kc_ss_left {
		box-shadow: none;
	}
	.kc_ss_right {
		padding-left: 20px;
	}
	.kc_ss_right h3 {
		font-size: 16px;
		margin-top: 0;
	}
	.kc_ss_js {
		font-size: 14px;
		margin-top: 10px;
	}
	.kc_ss_info {
		margin-top: 10px;
	}
	.ke_section {
		display: block;
		padding-bottom: 30px;
	}
	
	.kp_search {
		width: 100%;
		padding:0 0 20px 0;
		overflow: hidden;
	}
	.zt_list {
		width: 100%;
		padding:20px 0 0 0;
	}
	.zt_list .kj_nav li {
		width: 30%;
		margin: 0 5% 15px 0;
	}
	.zt_list .kj_nav li:nth-child(3n) {
		margin-right: 0;
	}
	.kc_list_box {
		padding: 5px 15px 20px 15px;
		margin-bottom: 15px;
	}
	.ke_left {
		width: 100%;
		margin-right: 0;
	}
	.ke_right {
		width: 100%;
		padding: 20px 15px 20px 15px;
		margin-top: 20px;
	}
	.ke_info_box {
		padding: 15px;
		margin-top: 20px;
	}
	.ke_info_box h1 {
		font-size: 18px;
	}
	.ke_info div:nth-child(3) {
		margin-left: 15px;
	}
	.ke_jianjie {
		margin-top: 10px;
		font-size: 14px;
		line-height: 1.6;
	}
	.ke_list {
		padding: 15px;
	}
	.ke_list h2 {
		font-size: 18px;
		padding: 10px 0 10px 0;
	}
	.ke_item a {
		padding: 10px 0px;
	}
	.ke_item a:hover {
		background: #ffffff;
		border-bottom: 1px dashed #f1e3c1;
	}
	

	.ke_item a div {
		padding-left: 30px;
	}

	.ke_item a div::before {
		width: 20px;
		height: 20px;
		top: 3px;
	}
	.ke_item a div h3 {
		font-size: 15px;
	}
	.ke_item a div span {
		margin-top: 0px;
		padding-left: 20px;
	}
	.ke_js_info h3 {
		font-size: 20px;
	}
	.ke_js_info p {
		line-height: 1.5;
	}
	.kc_video_section {
		padding: 20px 0;
	}
	.kc_video_box {
		display: block;
	}
	.kc_video_left {
		width: 100%;
		margin-right: 0;
	}
	.kc_video_right {
		width: 100%;
		margin-top: 30px;
	}
	.kc_v_title h1 {
		font-size: 18px;
	}
	.kc_v_title span {
		width: 110px;
	}
	.kc_v_title span a {
		padding-left: 15px;
		font-size: 14px;
	}
	.kc_v {
		margin-top: 10px;
	}
	.kc_v_title2 {
		display: block;
		padding: 10px 0;
	}
	.kc_v_title2 h2 {
		width: 100%;
		font-size: 16px;
		line-height: 1.6;
		text-align: justify;
	}
	.kc_v_title2 div {
		width: 100%;
	}
	.kc_v_more {
		border-top: 1px solid rgba(255, 255, 255, 0.05);
		padding-top: 15px;
	}
	.kc_v_more a {
		font-size: 14px;
	}
	.kc_video_right {
		margin-top: 20px;
		padding: 20px 15px 20px 15px;
	}
	.ke_ping {
		margin-top: 20px;
	}
	
}



@media screen and (max-width : 1700px) {
    .v_ping {
		height: 320px;
	}
}
@media screen and (max-width : 1500px) {
    .v_ping {
		height: 400px;
	}
}
@media screen and (max-width : 1441px) {
    .v_ping {
		height: 300px;
	}
}
@media screen and (max-width : 1300px) {
    .v_ping {
		height: 300px;
	}
}

@media screen and (min-width : 2100px) {
    .v_ping {
		height: 420px;
	}
}
@media screen and (min-width : 2300px) {
    .v_ping {
		height: 600px;
	}
}
@media screen and (min-width : 2600px) {
    .v_ping {
		height: 570px;
	}
}
@media screen and (min-width : 2800px) {
    .v_ping {
		height: 570px;
	}
}
@media screen and (min-width : 3000px) {
    .v_ping {
		height: 550px;
	}
}
@media screen and (min-width : 3300px) {
    .v_ping {
		height: 700px;
	}
}