.heade{
  width: 100%;
  height: 100px;
  /* background-color: #726060; */
  position: fixed;
  z-index: 999;
}

.bjtop{
  background-color: #ffffff;
}
.nav_menu{
  height: 100%;
  margin: 0 100px;
	display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav_menu .logo-img{
  width: 10%;
}
.heade .nav_menu .logo-img img:nth-child(2){
  display: block;
}
.heade .nav_menu .logo-img img:nth-child(1){
  display: none;
}



.nav_menu .nav_wrap>ul{
  width: 100%;
  height:100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.nav_wrap>ul>li{
  display: flex;
    align-items: center;
  margin: 0 25px;
  padding: 30px 0;
}
.nav_wrap>ul>li:hover{
  border-bottom: 2px solid #fd7802;
}

.botbtm{
  border-bottom: 2px solid #fd7802;
}

.nav_wrap>ul>li a{
	font-size: 18px;
  color: #333333;
  font-weight: 600;
}


.wrapshow{
  padding: 10px 25px !important;
  border: 2px solid #fd7802 !important;
  border-radius: 50px;
}

.heade .drop-down{
  width: 100%;
  /* height: 370px; */
  background-color: #ffffff;
}
.drop-down .downcet{
  display: flex;
}
.drop-down .downcet > div{
  width: 33%;
}
.downcet .down-cetle{
  background-color: #ffffff;
}
.downcet .down-cetcon{
  background-color: #f6f6f6;
}
.downcet .down-cetri{
  background-color: #ededed;
}
.cetle-tit{
  padding: 30px 0 0 25px;
  font-size: 22px;
}
.drop-down .downcet > div > ul{
  padding: 20px 0;
}
.drop-down .downcet > div > ul > li a{
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  padding: 15px 25px;
 
}
.drop-down .downcet > div > ul > li:hover a{
  background-color: #f6f6f6;
  color: #fd7802;
}
.drop-down .downcet > .down-cetcon > ul > li:hover a{
  background-color: #ededed;
  color: #fd7802;
  
}

.drop-down{
  display: none;
}
.down-cetcon{
  display: none;
}
.down-cetri{
  display: none;
}





/*------------ 左侧导航 ------------------*/
.layui-nav .layui-nav-item a>img {
    margin-right: 7px;
    margin-top: -3px;
}

.layui-nav-tree .layui-nav-item a {
    background: url(../images/slideDown.png) no-repeat 88% center;
    transition: all 0s;
}

.layui-nav-tree .layui-nav-item a img {
    margin-right: 7px;
    margin-top: -3px;
}

.layui-nav-tree .layui-nav-item a:hover {
    background: url(../images/slideUp.png) no-repeat 88% center;
}

.layui-nav-tree .layui-nav-child a {
    background: url(../images/slideDown.png) no-repeat 32px center;
    vertical-align: middle;
    padding: 0 0 0 62px;
}

.layui-nav-tree .layui-nav-child a:hover {
    color: #fff;
    background: url(../images/slideDown-fff.png) no-repeat 32px center;
}

.layui-nav-tree {
    width: 100%;
}
/* --------------------------- */



.bot-father {
  margin-top: 100px;
  background: url(../images/biology_02.png);
  background-size: cover;
  border-top: 1px solid #dcdcdc;
}
.bot-father .bot-gy {
  padding-top: 49px;
  height: 412px;
  position: relative;
  border-bottom: 1px solid #dcdcdc;
}
.bot-father .bot-gy .explain > ul {
  display: flex;
}
.bot-father .bot-gy .explain > ul > li:nth-child(1) {
  color: #666666;
  width: 338px;
  line-height: 23px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(1) > div {
  font-size: 12px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(1) > div:nth-child(3) {
  margin-top: 25px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(2) {
  line-height: 24px;
  width: 238px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(2) > div {
  font-size: 12px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(2) > div:nth-child(2) {
  margin-top: 25px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(3) {
  line-height: 24px;
  width: 231px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(3) > div {
  font-size: 12px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(3) > div:nth-child(2) {
  margin-top: 50px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(4) {
  width: 242px;
  line-height: 24px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(4) > div {
  font-size: 12px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(4) > div:nth-child(2) {
  margin-top: 25px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(5) {
  line-height: 24px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(5) > div {
  font-size: 12px;
}
.bot-father .bot-gy .explain > ul > li:nth-child(5) > div:nth-child(2) {
  margin-top: 30px;
  text-align: center;
}
.bot-father .bot-gy .explain > ul > li .headline {
  font-size: 16px;
  color: #333;
  margin-bottom: 22px;
}
.take {
  position: absolute;
  width: 1200px;
  top: -101px;
  left: 0;
  height: 100px;
  z-index: 80;
}
.take ul {
  display: flex;
}
.take ul li {
  width: 240px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100px;
}
.take ul li .take_img {
  width: 50px;
  height: 50px;
  border: 1px solid #9ab5ed;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  margin-right: 10px;
}
.take ul li .discolor {
  margin-top: 6px;
  color: #666666;
}
.base {
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.product_center {
  height: 90px;
  display: flex;
  align-items: center;
}
.product_center .product_home {
  height: 30px;
  width: 100%;
  border: 1px solid #ebebeb;
  display: flex;
  align-items: center;
}
.product_center .product_home > div {
  margin-left: 5px;
}
.product_center .product_home img {
  margin-left: 10px;
}
.product_center .product_home span {
  font-family: "宋体";
  font-size: 12px;
  color: #9b9b9b;
  margin: 0 2px;
}


/* 右侧浮动 */


.bot-father {
  margin-top: 0px;
  background: url(../images/biology_02.png);
  background-size: cover;
  border-top: 1px solid #dcdcdc;
}
.logo_fg {
  margin-top: 40px;
}
.logo_fg > ul {
  display: flex;
}
.logo_fg > ul li {
  flex: 1;
  display: flex;
  justify-content: center;
}
.deep_txt {
  text-align: center;
  margin-top: 101px;
  font-size: 18px;
  color: #333333;
}
.divide_hied {
  display: none;
}

.phone_box{
	display: flex;
}
.phone_box>div:nth-child(2){
	position: absolute;
	left: 65px;
	top:1px;
	width: 200px;

	height: 78px;
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 16px;
	color: #fff;
	background: #2783c9;
}
/* ------ */


/* 公共底部 */
.footer_box{
	background-image: url('../images/haderbj1.jpg');
  background-size: 100% 100%;
  /* margin-top: 110px; */
}
.footer_left{
	width: 100%;
	display: flex;
}
.footer_wrap{
	padding-top: 50px;
	padding-bottom: 100px;
}
.footer_on{
	width: 17%;
	color: #fff;
}
.footer_on ul li:first-child{
	font-size: 18px;
  font-weight: 550;
	position: relative;
}

.footer_on ul li:nth-child(n+2){
	padding-top: 15px;
}
.footer_on ul li a{
	color: #f5f5f5;
}
.footer_on ul li a span{
  margin-left: 10px;
}

.footer_on p{
  color: #fd7802;
  font-weight: 600;
  margin-top: 5px;
}

.footer_right{
  margin-top: 80px;
}
.footer_right ul{
  color: #ffffff;
	display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer_right ul li{
  color: #ffffff;
	display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer_right ul li p{
  margin-left: 10px;
}


.ff_bot{
	
	color: #999;
	
	border-top: 1px solid #999;
}
.ff_wrap{
	height: 80px;
	align-items: center;
	display: flex;
	justify-content: space-between;
}

.left_menu {
  width: 200px;
  height: 570px;
  border: 1px solid #eeeeee;
  margin-right: 20px;
}

.left_menu .menu1 {
  padding-bottom: 7px;
  border-bottom: 1px solid #e5e5e5;
}

.left_menu .menu1 ul li {
  position: relative;
  margin-bottom: 14px;
  height: 20px;
  padding-left: 29px;
  cursor: pointer;
  user-select: none;
  font-size: 14px;
}

.left_menu .menu1 ul .on:hover {
  color: #0066b3;
}

.left_menu .menu1 ul .on:hover::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}

.left_menu .menu1 ul .selct {
  color: #0066b3;
}

.left_menu .menu1 ul .selct::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}

.left_menu .menu2 {
  padding-bottom: 7px;
  border-bottom: 1px solid #e5e5e5;
}

.left_menu .menu2 ul li {
  position: relative;
  margin-bottom: 14px;
  height: 20px;
  padding-left: 29px;
  cursor: pointer;
  user-select: none;
  font-size: 14px;
}

.left_menu .menu2 ul .on:hover {
  color: #0066b3;
}

.left_menu .menu2 ul .on:hover::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}

.left_menu .menu2 ul .selct {
  color: #0066b3;
}

.left_menu .menu2 ul .selct::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}

.left_menu .menu3 {
  padding-bottom: 6px;
}

.left_menu .ment_zh {
  font-size: 16px;
  font-weight: 700;
  padding: 20px 0 18px 29px;
  height: auto;
}

.left_menu .menu3 ul li {
  position: relative;
  margin-bottom: 14px;
  height: 20px;
  padding-left: 29px;
  cursor: pointer;
  user-select: none;
  font-size: 12px;
}

.left_menu .menu3 ul .on:hover {
  color: #0066b3;
}

.left_menu .menu3 ul .on:hover::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}

.left_menu .menu3 ul .selct {
  color: #0066b3;
}

.left_menu .menu3 ul .selct::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 20px;
  background-color: #0066b3;
}