.structure {
    width: 100%;
    margin-top: 50px;
}

.contain {
    padding-top: 30px!important;
    padding-bottom: 108px!important;
}

.contain_content1 {
    width: 1136px;
    margin: 0px auto;
}

.contain_content1 img {
    width: 100%;
    display: block;
}

.contain_content1 h2 {
    font-size: 32px;
    color: #123069;
    font-weight: normal;
    text-align: center;
    margin: 40px 0px;
}

.contain_content1 p {
    font-size: 16px;
    color: black;
    line-height: 2;
    text-indent: 2em;
    text-align: justify;
}

.contain_content1 h3 {
    font-size: 24px;
    color: black;
    font-weight: normal;
    text-align: left;
    margin: 10px 0px;
}

.contain_content2 {
    width: 1136px;
    margin: 0px auto;
    margin-top: 60px;
}

.contain_content2_nav {
    width: 522px;
    height: 40px;
    margin: 0px auto;
    position: relative;
}

.contain_content2_nav:after {
    content: "";
    width: 1136px;
    height: 3px;
    position: absolute;
    bottom: -4%;
    left: -58.8%;
    background: #c79872;
}

.content2_nav_item {
    width: 174px;
    height: 40px;
    font-size: 18px;
    text-align: center;
    line-height: 40px;
    color: white;
    background: url(../images/about/content2_btn.png) no-repeat top center;
    float: left;
    cursor: pointer;
}

.nav_active {
    background: url(../images/about/content2_btnA.png) no-repeat top center;
}

.contain_content2_nc {
    width: 100%;
}

.contain_content2_nc_item {
    width: 100%;
    height: 414px;
    border-radius: 20px;
    box-shadow: 3px 1px 6px #d1d1d1;
    margin: 40px auto;
}

.contain_content2_nc_item_box1 {
    float: left;
    width: 50%;
    height: 100%;
    background: url(../images/about/content2_pic.jpg) no-repeat top left;
    border-radius: 20px 0px 0px 20px;
}

.contain_content2_nc_item_box2 {
    float: right;
    width: 50%;
    height: 298px;
}

.contain_content2_nc_item_box2_content {
    width: 90%;
    margin: 0px auto;
}

.contain_content2_nc_item_box2_content h4 {
    font-size: 28px;
    color: black;
    font-weight: 600;
    margin-top: 40px;
    height: 61px;
    line-height: 61px;
    font-weight: normal;
}

.contain_content2_nc_item_box2_content h4 img {
    display: inline-block;
    vertical-align: middle;
}

.contain_content2_nc_item_box2_content p {
    font-size: 16px;
    color: black;
    line-height: 2;
}

.contain_content2_nc_item_box2_line {
    width: 100%;
    height: 1px;
    background: #e7e7e7;
    margin: 25px 0px;
}

.contain_content3 {
    width: 1136px;
    margin: 0px auto;
    margin-top: 55px;
}

.contain_content3_nav {
    float: left;
    padding: 115px 0px 35px;
    width: 256px;
    box-shadow: 3px 1px 6px #d1d1d1;
    border-radius: 18px;
    position: relative;
}

.contain_content3_nav_item_top {
    position: absolute;
    width: 100%;
    top: 20px;
    height: 32px;
    text-align: center;
    color: black;
    font-size: 24px;
    /* background: url(../images/about/conten3_logo.png) no-repeat 36px top; */
}

.contain_content3_nav_item_top img {
    margin: 0px auto;
    max-width: 80%;
}

.contain_content3_nav_item {
    width: 76%;
    margin: 0px auto;
    font-size: 16px;
    color: black;
    border-bottom: 1px solid #c79872;
    padding: 16px 0px;
    background: url(../images/about/content3_right.png) no-repeat right 18px;
    cursor: pointer;
}

.contain_content3_nav_itemA {
    background: url(../images/about/content3_rightA.png) no-repeat right 20px;
    color: #c79872;
}

.contain_content3_nav_c {
    float: right;
    width: 850px;
    height: auto;
    border-radius: 20px;
    box-shadow: 3px 1px 6px #d1d1d1;
}

.contain_content3_nav_c_box {
    width: 100%;
    height: auto;
}

.content3_nav_c_swiper {
    position: relative;
    width: 100%;
    height: 450px;
    border-radius: 20px 20px 0px 0px;
}


/* .content3_nav_c_swiperB {
    position: relative;
    width: 100%;
    height: 450px;
    border-radius: 20px 20px 0px 0px;
}

.content3_nav_c_swiperC {
    position: relative;
    width: 100%;
    height: 450px;
    border-radius: 20px 20px 0px 0px;
} */

.swiper-container {
    border-radius: 20px 20px 0px 0px;
    height: 450px;
}

.swiper-container_btn {
    position: absolute;
    bottom: 7%;
    width: 192px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.swiper-container_btn_left {
    position: absolute;
    left: 0%;
    width: 37px;
    height: 37px;
    background: url(../images/about/content3_banner_left.png) no-repeat top center;
    display: inline-block;
    cursor: pointer;
}

.swiper-container_btn_content {
    width: 100px;
    height: 37px;
    border-radius: 30px;
    display: inline-block;
    background: white;
    opacity: 0.8;
    margin-left: 47px;
    text-align: center;
    line-height: 34px;
}

.btn_content_count {
    font-size: 16px;
    color: #5a5a53;
    vertical-align: middle;
}

.btn_content_total {
    font-size: 16px;
    color: #5a5a53;
    vertical-align: middle;
}

.swiper-container_btn_right {
    position: absolute;
    right: 0%;
    width: 37px;
    height: 37px;
    background: url(../images/about/content3_banner_right.png) no-repeat top center;
    display: inline-block;
    cursor: pointer;
}

.swiper-container_btn_hui {
    opacity: 0.7;
}

.content3_nav_c_p {
    width: 95%;
    margin: 0px auto;
    margin-top: 10px;
    padding-bottom: 45px;
}

.content3_nav_c_p h4 {
    font-size: 20px;
    color: black;
}

.content3_nav_c_p_line {
    width: 100%;
    height: 2px;
    background: #e7e7e7;
    margin: 24px 0px;
}

.content3_nav_c_p p {
    font-size: 16px;
    color: #3b3b3b;
    line-height: 2;
    text-align: justify;
}