html, body {
	margin: 0;
}
a{
	text-decoration: none;
	color: #999;
}
.introduce-header  {
	width: 100%;
	overflow: hidden;
}
.warpper {
	width: 100%;
}
.warpper-msg {
	max-width: 90%;
	margin: 80px auto 0 auto;
	overflow: hidden;
	transform: translateY(50px);
	opacity: 0;
	transition: all 1s;
}
.warpper_ul{
	margin: 0px;
	padding: 0px;
	list-style:none;
}
.warpper_ul > li {
	float: left;
	width: 14.28%;
	cursor: pointer;
	vertical-align: middle;
	text-align: center;
}
.warpper_ul > li > img {
	width: 52%;
	height: 52%;
}
.warpper_ul > li > p {
	width: 90%;
	font-size: 16px;
	line-height: 30px;
	text-align: center;
	margin: 20px auto;
	letter-spacing: 1px;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 1;
	overflow: hidden;
	text-align: center;
}

.warpper_div1 {
	max-width: 100%;
	margin: 0;
	padding: 0;
	height: 720px;
	overflow: hidden;
	position: relative;
}

.warpper_text {
	text-align: center;
	margin: 60px 0;
	
}
.warpper_text > p:nth-child(1) {
	font-size: 35px;
	margin: 0;
	padding: 0;
}
.warpper_text > p:nth-child(2) {
	font-size: 18px;
	padding: 0;
	margin: 10px;
	color: rgb(50,50,50);
}

.lead_lithium {
	width: 100%;
}

.lead_lithium > img {
	width: 57%;
	position: absolute;
	float: left;
}

.lead_lithium_div {
	overflow: hidden;
	width: 30%;
	padding: 50px 7% 65px 5%;
	position: absolute;
	right: 0;
}
.lead_lithium_div > h1 {
	padding: 0;
	margin: 0;
	font-size: 50px;
	margin-bottom: 40px;
}
.lead_lithium_div > p {
	padding: 0;
	margin: 0;
	line-height: 30px;
	color: rgb(119,119,119);
}

.lead_lithium_div > ul {
	margin: 0px;
	padding: 0px;
	width: 70%;
	list-style:none;
}
.lead_lithium_div > ul > li {
	width: 160px;
	height: 50px;
	line-height: 50px;
	float: left;
	color: rgb(109,109,109);
	/*position: absolute;*/
	margin-right: 20px;
	border-bottom: 1px solid rgb(209,209,209);
}

.lead_lithium_dg {
	background-color: rgb(244,244,244);
	width: 88%;
	height: 430px;
	position: absolute;
	bottom: 0;
	right: 0;
}





.warpper_div2 {
	max-width: 100%;
	margin: 0;
	padding: 0;
	height: 520px;
	overflow: hidden;
	position: relative;
	margin-top: 80px;
}

.warpper_text2 {
	text-align: center;
	margin: 60px 0;
	
}
.warpper_text2 > p:nth-child(1) {
	font-size: 35px;
	margin: 0;
	padding: 0;
}
.warpper_text2 > p:nth-child(2) {
	font-size: 18px;
	padding: 0;
	margin: 10px;
	color: rgb(50,50,50);
}

.lead_lithium2 {
	width: 100%;
}

.lead_lithium2 > img {
	width: 57%;
	position: absolute;
	right: 0;
}

.lead_lithium_div2 {
	overflow: hidden;
	width: 30%;
	padding: 50px 3% 65px 10%;
	position: absolute;
	left: 0;
}
.lead_lithium_div2 > h1 {
	padding: 0;
	margin: 0;
	font-size: 50px;
	margin-bottom: 40px;
}
.lead_lithium_div2 > p {
	padding: 0;
	margin: 0;
	line-height: 30px;
	color: rgb(119,119,119);
}

.lead_lithium_div2 > ul {
	margin: 0px;
	padding: 0px;
	width: 70%;
	list-style:none;
}
.lead_lithium_div2 > ul > li {
	width: 160px;
	height: 50px;
	line-height: 50px;
	float: left;
	color: rgb(109,109,109);
	margin-right: 20px;
	border-bottom: 1px solid rgb(209,209,209);
}

.lead_lithium_dg2 {
	background-color: rgb(244,244,244);
	width: 88%;
	height: 430px;
	position: absolute;
	bottom: 0;
	left: 0;
}


.warpper_div3 {
	max-width: 100%;
	margin: 0;
	padding: 0;
	height: 520px;
	overflow: hidden;
	position: relative;
	margin-top: 80px;
}

.warpper_text3 {
	text-align: center;
	margin: 60px 0;
	
}
.warpper_text3 > p:nth-child(1) {
	font-size: 35px;
	margin: 0;
	padding: 0;
}
.warpper_text3 > p:nth-child(2) {
	font-size: 18px;
	padding: 0;
	margin: 10px;
	color: rgb(50,50,50);
}

.lead_lithium3 {
	width: 100%;
}

.lead_lithium3 > img {
	width: 57%;
	position: absolute;
	float: left;
}

.lead_lithium_div3 {
	overflow: hidden;
	width: 30%;
	padding: 50px 7% 65px 5%;
	position: absolute;
	right: 0;
}
.lead_lithium_div3 > h1 {
	padding: 0;
	margin: 0;
	font-size: 50px;
	margin-bottom: 40px;
}
.lead_lithium_div3 > p {
	padding: 0;
	margin: 0;
	line-height: 30px;
	color: rgb(119,119,119);
}

.lead_lithium_div3 > ul {
	margin: 0px;
	padding: 0px;
	width: 70%;
	list-style:none;
	/*position: absolute;*/
}
.lead_lithium_div3 > ul > li {
	width: 160px;
	height: 50px;
	line-height: 50px;
	float: left;
	color: rgb(109,109,109);
	/*position: absolute;*/
	margin-right: 20px;
	border-bottom: 1px solid rgb(209,209,209);
}
.lead_lithium_div2 > ul > li,.lead_lithium_div3 > ul > li,.lead_lithium_div> ul > li{
	position: relative;

}
.lead_lithium_div3 > ul > li::after,.lead_lithium_div2 > ul > li::after,.lead_lithium_div > ul > li::after{
	content: '';
	display: block;
	position: absolute;
	left: 0;
	bottom: -1px;
	width: 0;
	height: 1px;
	background: #f8b600;
	transition: width 0.8s;
}
.lead_lithium_div3 > ul > li:hover::after,.lead_lithium_div2 > ul > li:hover::after,.lead_lithium_div > ul > li:hover::after{
	width: 100%;
}
.lead_lithium_div3 > ul > li:hover a,.lead_lithium_div2 > ul > li:hover a,.lead_lithium_div > ul > li:hover a{
	color: #f8b600;
}
.lead_lithium_dg3 {
	background-color: rgb(244,244,244);
	width: 88%;
	height: 430px;
	position: absolute;
	bottom: 0;
	right: 0;
}
.opacity_left{
	transition: all 1s;
	transform: translateX(-100px);
	opacity: 0;
}
.opacity_right{
	transition: all 1s;
	transform: translateX(100px);
	opacity: 0;
}
.opacity2{
	transform: translate(0);
	opacity: 1;
}
.ul_img2{
	display: none;
}
.warpper_ul > li:hover .ul_img1{
	display: none;
}
.warpper_ul > li:hover .ul_img2{
	display: inline;
}
.warpper_ul > li:hover p{
	color: #f8b600;
	-webkit-line-clamp: 2;
}