* {
    margin: 0;
    padding: 0;
    font-family: Source Han Sans CN;
}

a {
    text-decoration: none !important;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
}

.nav {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    bottom: 1px solid #999999;
}

.nav_logo {
    width: 430px;
    height: 40px;
}

.nav_list {
    display: flex;
    flex-direction: row;
}

.nav_listBtn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    height: 70px;
    padding: 0 8px;
    position: relative;
    color: #666666;
}

.nav_listBtn::before {
    content: '';
    position: absolute;
    bottom: 0px;
    width: 0;
    left: 50%;
    border-bottom: 2px solid #004fc4;
    transition: 0.2s all linear;
}

.nav_listBtn_active::before {
    content: '';
    position: absolute;
    bottom: 0px;
    width: 90%;
    left: 5%;
    border-bottom: 2px solid #004fc4;
    transition: 0.2s all linear;
}

.nav_listBtn:hover::before {
    left: 5%;
    width: 90%;
}

.nav2 {
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    border-top: 1px solid #CCCCCC;
    position: absolute;
    top: 70px;
    left: 0;
    z-index: 99;
    background-color: #FFFFFF;
    display: none;
}

.productBtn:hover~.nav2 {
    display: flex;
}

.nav2:hover {
    display: flex;
}

.nav2_content {
    height: 70px;
    width: 1200px;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    box-sizing: border-box;
    padding: 0 3%;
}

.nav2_content>a {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    font-size: 16px;
    color: #666666;
    font-weight: 400;
    transition: all 0.2s linear;
}

.nav2_content>a:hover {
    color: #1952C1;
}

.nav2_content_btn_active {
    color: #1952C1 !important;
}

.content {
    width: 1200px;
}

.banner>img {
    width: 1920px;
    position: relative;
    left: 600px;
    margin-left: -960px;
}

.expBlock_1 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-bottom: 67px;
}

.expBlock_1_title {
    font-size: 28px;
    text-align: center;
    color: #2655BA;
    font-weight: 500;
    padding-top: 70px;
}

.expBlock_1_title2 {
    font-size: 26px;
    font-weight: 500;
    color: #333333;
    padding-top: 11px;
}

.expBlock_1_text,
.expBlock_2_text {
    color: #333333;
    font-size: 16px;
    line-height: 28px;
    text-align: center;
    padding-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.text_title {
    font-size: 26px;
    font-weight: 500;
    color: #333333;
    padding-top: 11px;
    text-indent: 0;
}
.expBlock_1_text_text{
    display: block;
    width: 882px;
    text-indent: 2em;
    margin-top: 40px;
    text-align: left;
}
.expBlock_1_active{
    color: #333333;
    display: block;
    width: 882px;
    text-indent: 2em;
    margin-top: 40px;
    text-align: left;
}
.expBlock_1_active:hover{
    font-weight: bold;
    color: #2655BA;
}
.expBlock_2_text {
    padding-top: 0;
    margin-top: 69px;
}

.expBlock_1_list {
    padding-top: 70px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.expBlock_1_list_block {
    width: 590px;
    margin: 0 10px;
}

.expBlock_1_list_block>img {
    width: 590px;
    height: 280px;
}

.expBlock_1_list_block>div {
    height: 180px;
    box-sizing: border-box;
    border: 1px solid #E0E0E0;
    box-shadow: 0px -2px 0px 0px rgba(179, 180, 182, 0.12), -2px 0px 0px 0px rgba(179, 180, 182, 0.1), 2px 0px 0px 0px rgba(179, 180, 182, 0.16), 0px 2px 0px 0px rgba(179, 180, 182, 0.1);
    border-top: none;
    padding: 39px 20px 0 20px;
    color: #666666;
    font-size: 16px;
    line-height: 28px;
    font-weight: 400;
    margin-top: -4px;
}

.expBlock_2 {
    padding-top: 70px;
    padding-bottom: 70px;
}

.expBlock_2_imgBox {
    display: flex;
    flex-direction: row;
    align-items: center;
    box-sizing: border-box;
    justify-content: center;
}

.expBlock_2_imgBox>div {
    height: 580px;
}

.expBlock_2_imgBox img {
    width: 100%;
}

.expBlock_2_imgBox_l {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.expBlock_2_imgBox_m {
    margin: 0 20px;
}

.expBlock_2_imgBox_m>img {
    width: 285px;
    height: 580px;
}

.expBlock_2_imgBox_l>img {
    width: 285px;
    height: 280px;
}

.expBlock_2_imgBox_r {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #F6F7FC;
    border: 1px solid #E0E0E0;
    padding: 0 20px;
}

.footer {
    width: 100%;
    background: #F6F7FC;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.linkBox {
    width: 1200px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    padding-top: 70px;
    padding-bottom: 90px;
}

.linkBox_logo {
    width: 264px;
    height: 24px;
}

.linkBox_list_list {
    display: flex;
    flex-direction: column;
    margin-top: 50px;
}

.linkBox_list_list_link {
    color: #666666;
    font-size: 12px;
    font-weight: 400;
    line-height: 20px;
    margin: 7px 0;
}

.linkBox_list_title {
    color: #333333;
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
}

.linkBox_list_6 {
    padding-top: 6px;
}

.footerBox {
    width: 100%;
    border-top: 1px solid #CCCCCC;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #666666;
    font-size: 12px;
    font-weight: 400;
}

.footerBox>div {
    margin: 0 6px;
}

.footerBox a {
    color: #666666;
}

.footerBox a:hover {
    color: #004fc4;
}

.expBlock_1_imgList {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.expBlock_1_imgList>img {
    margin: 69px 9px 29px 9px;
}

.expBlock_2_imgList {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-top: 70px;
}

.expBlock_2_imgList>img:nth-child(2) {
    margin: 0 9px;
}

.expBlock_1_banner2 {
    margin-top: 60px;
}

.expBlock_1_hightLightText {
    font-size: 28px;
    font-weight: 500;
    color: #2655BA;
    line-height: 48px;
    margin-top: 69px;
    text-align: center;
}

.fullScreenList_content {
    width: 1920px;
    position: relative;
    left: 600px;
    margin-left: -960px;
    background-color: #F6F7FC;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 60px 0;
}

.fullScreenList_content_listBox {
    width: 1200px;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
}

.fullScreenList_content_list_line {
    margin-top: 20px;
}

.fullScreenList_content_list {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
}

.fullScreenList_content_list_title {
    font-size: 28px;
    margin-top: 20px;
    color: #333333;
}

.fullScreenList_content_list_text {
    text-align: center;
    margin-top: 27px;
    font-size: 12px;
    color: #727171;
    font-weight: 400;
    line-height: 22px;
}

.expBlock_title {
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: flex-end;
}

.expBlock_title>div:nth-child(1) {
    font-size: 28px;
    height: 28px;
    font-weight: 500;
    color: #333333;
    padding: 0 10px 0 0;
    border-right: 2px solid #333333;
    display: flex;
    justify-content: center;
    align-items: center;
}

.expBlock_title>div:nth-child(2) {
    font-size: 16px;
    font-weight: 400;
    color: #333;
    padding: 0 12px;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    margin-bottom: -2px;
}

.emailBox {
    width: 240px;
    background: #F2F2F2;
    padding: 20px;
    box-sizing: border-box;
    color: #333333;
    font-size: 16px;
    line-height: 28px;
    margin-top: 30px;
}

.joinUsBox_l_line1 {
    font-size: 18px;
    font-weight: 400;
    color: #333333;
    line-height: 20px;
}

.joinUsBox_r {
    width: 920px;
}

.joinUsBox {
    margin-top: 40px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
}

.joinUsBox_r_line1,
.joinUsBox_r_line {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    width: 100%;
    border-bottom: 1px solid #E0E0E0;
    padding: 0 10px;
    font-weight: 400;
    color: #333333;
}

.joinUsBox_r_line1 {
    padding-bottom: 30px;
    font-weight: 500;
    color: #333333;
}

.joinUsBox_r_line {
    cursor: pointer;
    padding: 22px 10px;
}

.joinUsBox_r_line:hover {
    background-color: #F2F2F2;
}

.joinUsBox_r_line_block {
    width: 235px;
}

.joinUsBox_r_line .plusIcon {
    width: 15px;
    height: 15px;
    transition: 0.2 all linear;
}

.plusIcon_active {
    transform: rotate(45deg);
}

.joinUsBox_r_line_exp {
    height: 0;
    max-height: 30px;
    overflow: hidden;
    opacity: 0;
    font-size: 16px;
    font-weight: 400;
    border-bottom: 1px solid #E0E0E0;
    transition: 0.2 all linear;
}

.joinUsBox_r_line_exp_active {
    height: auto;
    opacity: 1;
    max-height: 1000px;
}

.joinUsBox_r_line_exp_title {
    color: #333333;
    margin: 29px 0;
    padding: 0 10px;
}

.joinUsBox_r_line_exp_text {
    color: #999999;
    line-height: 28px;
    padding: 0 10px;
}

.joinUsBox_r_line_exp_text:nth-last-child(1) {
    margin-bottom: 40px;
}

.linkBox_list_6 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.linkBox_list_6>.linkBox_list_list_link {
    font-size: 14px;
}