* {
    font-family: 微软雅黑;
}

input {
    outline: none;
}

body {
    margin: 0 auto;
    padding: 0;
    overflow-x: hidden;
    background-color: #F1F5F8 !important;
}

.banner_sub img {
    width: 100%;
    height: 100%;
    margin-bottom: 30px;
}

ul,
li,
dl {
    margin: 0;
    padding: 0;
}

img {
    object-fit: cover;
}

a {
    text-decoration: none;
    color: #000;
}

li {
    list-style: none;
    color: #3D3D3D;
}

.top_link_border {
    padding: 14px 0;

    background-color: #4F4F4F;
}

.top_link {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: right;
}

.top_link_item {
    color: #fff;
    font-size: 14px;
    padding-left: 12px;
    margin-left: 12px;
    border-left: 1px solid #A2A2A2
}

.top_link_item a {
    color: #fff;
}

.top_link_item:first-child {
    border-left: none
}

header {
    height: 127px;
    margin: 0 auto;
    background: linear-gradient(90deg, #1260A5 0%, #1AACB6 100%);
}

header .header_wrap {
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
}

.header_nav {
    flex: 1;
    text-align: right;
    margin-right: 20px;
}


header .header_wrap .header_logo {
    display: flex;
    width: auto;
    height: 71px;
    margin-left: 70px;
}

header .header_wrap .header_logo img {
    width: auto;
    height: 71px;
}

header .header_wrap .header_search {
    display: flex;
    justify-content: right;
    align-items: center;
}

.language {
    margin-left: 20px;
    font-size: 18px;
    color: #FFFFFF;
}

.language a {
    color: #FFFFFF;
}

header .header_wrap .header_search input {
    background-color: transparent;
    border: none;
    outline: none;
    width: 150px;
    height: 40px;
    padding-left: 10px;
    box-sizing: border-box;
    border: none;
    border-bottom: 1px solid #D8D8D8;
    overflow: hidden;
    font-size: 12px;
}

input::placeholder {
    color: rgb(218, 218, 218);
}
input, textarea {
    caret-color: #e0e0e0; 
}

input::-webkit-input-placeholder {
    color: rgb(218, 218, 218);
}

input:-moz-placeholder {
    color: rgb(218, 218, 218);
    opacity: 1;
}

input::-moz-placeholder {
    color: rgb(218, 218, 218);
    opacity: 1;
}

input:-ms-input-placeholder {
    color: rgb(132, 132, 132);
}

header .header_wrap .header_search .img_wrap {
    width: 42px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 0 4px 4px 0;
    overflow: hidden;
}

header .header_wrap .header_search .img_wrap a {
    display: flex;
    justify-content: center;
    align-items: center;
}

header .header_wrap .header_search .img_wrap img {
    width: 22px;
    height: 22px;
}


.pop_box_bg {
    position: absolute;
    right: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
    cursor: pointer;
}

.pop_box {
    position: fixed;
    right: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: none;
}

.pop_box.on {
    display: block;
}

.pop_box_bg .close {
    width: 40px;
    height: 40px;
    position: absolute;
    right: 6%;
    top: 10%;
    background: url(../images/close.png) center / contain;
}

.ser {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    max-width: calc(100% - 4rem);
    width: 40rem;
    height: 4rem;
}

.search {
    width: 100%;
    height: 100%;
    background: #fff;
    position: absolute;
    right: 0;
    z-index: 999;
}

.search input.notxt {
    position: absolute;
    width: calc(100% - 12rem);
    height: 100%;
    color: #666;
    left: 0rem;
    top: 0;
    padding: 0;
    margin: 0rem;
    outline: none;
    font-size: 16px;
    z-index: 3;
    padding: 0 0 0 2rem;
    background: transparent;
    border: 0;
    box-sizing: border-box;
    font-family: inherit;
}

.search input.notxt1 {
    position: absolute;
    width: 8rem;
    height: 100%;
    border: none;
    background: none;
    right: 0;
    cursor: pointer;
    z-index: 3;
    font-size: 0;
    bottom: 0;
    background: url(../images/search_2.png) center no-repeat #000;
    box-sizing: border-box;
}

.search input.notxt1 {
    background-image: url(../images/search_2.png);
    background-color: #004b8d;
    background-size: 1.8rem;
}

nav {
    text-align: right;
    display: inline-block;
}
nav  li:nth-child(3) .nav_sec_content {
    width: 180px;
    left: -37px;
}
nav  li:nth-child(4) .nav_sec_content {
    width: 180px;
    left: -37px;
}
nav .wrap {
    max-width: 1400px;
    height: 60px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    font-size: 21px;
}


.nav_fir {
    height: 60px;
    line-height: 60px;
    text-align: center;
    padding-left: 30px;
    position: relative;
    z-index: 3;

}
.nav_en{
   padding-left: 20px;
   font-size:18px;
}
.nav_fir a {
    color: #fff;
}

nav .wrap li a:hover {
    color: #cc865a;
}



.jiao {
    position: absolute;
    left: 50%;
    width: 26px;
    height: 14px;
    bottom: 0px;
    opacity: 0.8;
}

.nav_sec {
    display: none;
}

.nav_sec_content {
    width: 100%;
    position: absolute;
    background: #FFFFFF;
    height:auto;
    padding: 15px 15px;
    display: flex;
    z-index: 200;
    opacity: 0.9;
    color: #fff;
}


.nav_sec_content ul {
    padding-left: 20px;
}

.nav_sec_content li {
    text-align: left;
    font-size: 18px;
    color: #767676;
    line-height: 38px;
    height: 38px;
}

.nav_sec_content li a {
    color: #767676;
    display: block;
    width: 100%;
}

.nav_sec_content li:hover {
    color: #004B8D;
}

.nav_sec_content a:hover {
    color: #004B8D;
}

.nav_sec_content_en li{
   line-height: normal;
   height: auto;
   margin:15px auto;
}

.nav_sec {
    position: relative;
}

nav .wrap li:hover .nav_sec {
    display: block;

}

.main-nav {
    width: 100%;
    display: none;
    overflow: hidden;
}

.m_nav_box_wrap {
    display: none;
}

.m_nav_box {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    overflow: auto;
    background-color: #f5f5f5;
    z-index: 666;
}

.m_nav_box .m_nav_box_top {
    text-align: center;
    margin: 20px;
    font-size: 20px;
}

.m_nav_box .m_nav_title {
    width: 90%;
    margin-left: 5%;
}

.m_nav_box .m_nav_title a {
    color: #000;
    display: block;
    line-height: 45px;
    font-size: 18px;
    border-bottom: 1px solid #dbdbdb;
}

.m_nav_box .m_nav_title .m_nav_title_link::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 3px;
    background-color: #888888;
    margin-right: 10px;
}

.m_nav_box .m_nav_title .m_nav_title_link::after {
    content: "";
    display: inline-block;
    width: 15px;
    height: 15px;
    margin-top: 18px;
    background-image: url("./images/m-arrow.png");
    background-size: cover;
    float: right;
    line-height: 45px;
}

.m_nav_box .m_nav_title .m_nav_er_title {
    width: 100%;
    border-bottom: 1px solid #dbdbdb;
    padding-bottom: 10px;
}

.m_nav_box .m_nav_title .m_nav_er_title a {
    display: inline-block;
    border: 0;
    line-height: 35px;
    background-color: #e0e0e0;
    padding: 0 10px;
    border-radius: 4px;
    margin-top: 10px;
    margin-left: 0%;
    margin-right: 3%;
}

.m_nav_box .m_nav_title .m_nav_er_title a::before {
    content: "";
    display: inline-block;
    width: 0px;
    height: 0px;
    border-radius: 0px;
    margin-right: 0px;
}

.m_nav_close {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 90%;
    margin-left: 5%;
    height: 50px;
    background-color: #004B8D;
    text-align: center;
    line-height: 50px;
    border-radius: 5px;
    z-index: 999;
}

.m_nav_close a {
    color: #fff;
}

.main-nav {
    display: none;
}

.header_right {
    background-image: url('../images/head_left.png');
    width: 80px;
    height: 100%;
    background-position: center;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
}

.menu_1 {
    width: 54px;
    margin-left: 63px;
    height: 54px;
}



.banner {
    width: 100%;
    height: 748px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;


}

.banner .swiper-wrapper {
    width: 100%;
}

.banner .swiper-slide {
    width: 100%;
}

.banner .swiper-slide img {
    width: 100%;
    height: 100%;
}

.banner .pagination {
    position: absolute;
    z-index: 20;
    bottom: 10px;
    width: 100%;
    text-align: center;
}

.banner .swiper-pagination-bullet {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 8px;
    background: #fff;
    margin: 0 5px;
    opacity: 0.8;
    cursor: pointer;
}

.banner .swiper-pagination-bullet-active {
    width: 36px;
    height: 12px;
    border-radius: 6px;
    background: #004B8D;
}

.banner .swiper-button-white {
    background-color: rgba(12, 12, 12, 0.4);
    background-size: 12px 20px;
    border-radius: 3px;
}


footer {
    height: 274px;
    margin: 0 auto;
    font-size: 16px;
    margin-top: -25px;
    background-image: url('../images/bg_5.png');
    background-position: center top;
    background-size: 100%;
    background-repeat: no-repeat;
    color: #fff;
    padding-top: 20px;
}

.footer-btn {
    background: #004B8D;
    text-align: center;
    padding-bottom: 42px;
    padding-top: 20px;
}

footer .wrap {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.foot_left {
    font-size: 16px;
    font-weight: normal;
    line-height: 28px;
    letter-spacing: normal;
    flex: 1;
    color: #FFFFFF;
}
.foot_logo {

    width: 520px;
    height: 60px;
    margin-bottom: 28px;
    object-fit: contain;
}

.foot_right {
    display: flex;
    justify-content: space-between;
    flex: 1;
}

.f_r_item {
    text-align: left;
    font-size: 15px;
    font-weight: 500;
    line-height: normal;
    letter-spacing: normal;
    color: #FFFFFF;
    line-height: 24px;
}

.f_r_item a {
    color: #fff;
}

.f_title {
    font-size: 20px;
    font-weight: 500;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.list_content_right {
    width: 980px;
}

.list_img {
    width: 980px;
}

.list_img_right_title {
    width: 90%;
}

.list_img_right_detail {
    width: 90%;
}

.list_text {
    width: 980px;
}
@media (max-width:1900px) {
    .nav_en{
        padding-left: 18px;
        font-size: 17px;
         height:auto;
         line-height:normal;
    }
    header .header_wrap .header_logo .img_en{
          height: 60px;
    }
}
@media (max-width: 1640px) {
    .nav_fir{
        padding-left: 15px;
        font-size: 20px;
    }
    .nav_en{
        padding-left: 18px;
        font-size: 17px; 
        height:auto;
        line-height:normal;
    }
    header .header_wrap .header_logo img{
        height: 60px;
    }
    header .header_wrap .header_logo .img_en{
          height: 50px;
    }
}
@media (max-width: 1400px) {
    .header .header_wrap {
        max-width: 1200px;
    }


    header .header_wrap .header_logo {
        height: 50px;
        margin-left: 26px;
    }

    header .header_wrap .header_logo img {
        height: 50px;
    }

    .nav .wrap {
        max-width: 1200px;
    }


    footer .wrap {
        max-width: 1200px;
        display: block;
    }


    footer {
        background: #004B8D;
        height: auto;
    }

    .foot_right {
        margin-top: 20px;
    }
}
@media (max-width: 1260px) {
    .nav_fir{
        padding-left: 10px;
        font-size: 18px;
    }
    header .header_wrap .header_logo img{
        height: 50px;
    }
}
@media (max-width: 1200px) {
    .top_link {
        max-width: 1000px;
    }

    .banner {
        height: 482px;
    }

    .header .header_wrap {
        max-width: 1000px;
    }

    .nav .wrap {
        max-width: 1000px;
    }

    footer .wrap {
        max-width: 1000px;
    }

    .foot_left {
        font-size: 14px;
    }

    .foot_right {
        font-size: 16px;
    }

    header .header_wrap .header_logo {
        height: 50px;
    }

    header .header_wrap .header_logo img {
        height: 50px;
    }

    .pc_header {
        display: none;
    }

    .main-nav-box {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 60px;
    }

    .main-nav {
        display: block;
        background: linear-gradient(90deg, #1260A5 0%, #1AACB6 100%);
    }

    .main-nav-left {
        flex: 1;
    }

    .main-nav-left img {
        height: 43px;
        padding-left: 20px;
    }

    .main-nav-right {
        flex: 1;
        text-align: right;
        padding-right: 20px;
        display: flex;
        align-items: center;
        justify-content: right;
    }

    .main-nav-right .menu {
        display: inline-block;
        cursor: pointer;
        margin-right: 14px;
        position: relative;
        top: 2px;
    }

    .m_language {
        font-size: 16px;
        margin-right: 10px;
    }

    .m_language a {
        color: #fff;
    }

}

@media (max-width: 980px) {
    footer .wrap {
        display: block;
    }

    .foot_logo {
        width: 80%;
        height: auto;
    }

    .banner {
        height: 382px;
    }

    .main-nav-right .search {
        display: inline-block;
        cursor: pointer;
    }



    nav {
        display: none;
    }

    .foot_right {
        padding: 0 10px;
    }

    .f_r_item {
        font-size: 13px;
    }

    .f_title {
        font-size: 16px;
    }

    .footer-btn {
        font-size: 13px;
    }

    .list_content {
        padding-top: 20px;
        width: 100%;
    }

    .list_content_left {
        display: none;
    }

    .list_content_right {
        width: 400px;
        margin: 0 auto;
    }

    .list_img {
        width: 400px;
        display: block;
        height: auto;
    }

    .list_img_left img {
        width: 88%;
    }

    .list_img_right {
        margin: 0 20px;
        padding: 0;
        padding-bottom: 40px;
        width: 90%;
    }

    .list_text_right {
        width: 58%;
    }

    .list_img_right_title {
        width: 90%;
    }

    .list_text {
        width: 400px;
    }

    .list_content_right {
        width: 92%;
        margin-left: 4%;
    }

    .list_img,
    .list_img_left,
    .list_img_right,
    .list_text {
        width: 100%;
    }

    .list_img_left {
        padding: 0;
    }

    .list_img_left img {
        padding: 20px;
    }

    .list_text_right {
        width: 72%;
    }

    .content_wrap {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .banner {
        height: 262px;
        width: 100%;
    }
    .main-nav-right .menu {
        margin-right: 6px;
    }

    .main-nav-left {
        flex: 0 0 70%;
    }

    .main-nav-left img {
        padding-left: 0;
    }



    footer {
        padding-left: 10px;
        padding-right: 10px;
    }

    .stu_list {
        padding: 0 10px;
    }

    .foot_right {
        display: none;
    }

    .list_content_right {
        width: 92%;
        margin-left: 4%;
    }

    .list_img,
    .list_img_left,
    .list_img_right,
    .list_text {
        width: 100%;
    }

    .list_img_left {
        padding: 0;
    }

    .list_img_left img {
        padding: 20px;
    }

    .list_text_right {
        width: 58%;
    }

    .weizhi_right {
        display: none;
    }
}


@media (max-width: 550px){
    .main-nav-left img{
        height: 30px;
    }
}