.banner {
    width: 100%;
    height: 630px;
    background: url(../images/index_banner.png);
}

.banner_search {
    width: 1170px;
    margin: 0 auto;
}

.banner_search_info_input button {
    background: #FF852B !important;
}

.banner_search {
    box-sizing: border-box;
    padding-top: 110px;
}

.nav_choose_father {
    max-width: 1720px;
    margin: 0 auto;
    margin-top: -106px;
    box-shadow: 4px 7px 40px 0px rgba(0, 4, 85, 0.1);
    background: #FFFFFF;
    border-radius: 20px;
    overflow: hidden;

}

.nav_choose {
    max-width: 1720px;
    background: #FFFFFF;
    margin: 0 auto;
    display: flex;
    padding: 30px 0;
}

.nav_choose_father_title_box {
    text-align: center;
    padding-top: 30px;
}

.nav_choose_father_title {
    width: 695px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    font-size: 30px;
    color: #222222;
    line-height: 44px;
    margin: 0 auto;
}

.nav_choose_father_content {
    width: 941px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 20px;
    color: #666666;
    line-height: 30px;
    margin: 10px auto;
}

.content_bottom {
    background-color: #fff;
}

.nav_choose_item {
    display: flex;
    flex-direction: column;
    align-content: center;
    text-align: center;
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 24px;
}

.nav_choose_item_txt {
    margin: 0 40px;
    margin-top: 10px;
}

.nav_choose_item img {
    height: 68px;
    display: block;
    margin: 0 auto;
    margin-bottom: 20px;
}

.nav_choose_item_title {
    font-size: 20px;
    color: #222222;
}

.content_section_title {
    padding-top: 90px;
    margin: 0 auto;
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    color: #222222;
    line-height: 44px;
}

.content_section_div {
    display: flex;
    justify-content: center;
    padding: 50px 0;

}

.content_section_div_item {
    margin-right: 45px;
    padding: 50px 30px;
    width: 360px;
    height: 567px;
    background: #FFFFFF;
    box-shadow: 3px 4px 30px 0px rgba(0, 4, 85, 0.1);
    border-radius: 10px;
    border: 1px solid #F1F1F1;
}

.content_section_div_item:last-child {
    margin-right: 0px;
}

.content_section_div_item_tips {
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 14px;
    color: #999999;
}

.content_section_div_item_title {
    font-size: 24px;
    font-weight: bold;
    color: #1F4DB2;
}

.content_section_div_item_title.orange {
    color: #FF852B;
}

.content_section_div_item_price {
    font-size: 30px;
    font-weight: bold;
    color: #333333;
}

.content_section_div_item_content {
    font-size: 16px;
    font-weight: 400;
    color: #666666;
    line-height: 26px;
    overflow: hidden;
    margin-top: 22px;
}

.content_section_div_item_content p {
    position: relative;
    margin-bottom: 28px;
    padding-left: 20px;
}

.content_section_div_item_content p:before {
    content: '';
    position: absolute;
    left: 0px;
    display: block;
    width: 3px;
    height: 14px;
    background: #1F4DB2;
    border-radius: 1px;
    top: 50%;
    transform: translateY(-50%);
}

.content_section_div_item_content.orange p:before {
    background: #FF852B;
}

.content_section_btn {
    width: 260px;
    height: 54px;
    background: #1F4DB2;
    border-radius: 6px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #FFFFFF;
    font-weight: bold;
    font-size: 16px;
}

.content_section_tel {
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    color: #666666;
    margin-top: 30px;
    margin-bottom: 100px;
}

.content_section_tel span {
    color: #1F4DB2;
}

.w1170 {
    width: 1170px;
    margin: 0 auto;
}

.content_bottom_section {
    padding: 100px 0;
    background-color: #f5f5f5;
    margin-top: 100px;
}

.content_bottom_div {
    padding-top: 100px;
}

.content_why_bottom_div {
    padding-top: 0px;
    width: 1068px;
}

.content_bottom_div_tit {
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    color: #222222;
}

.content_bottom_div_txt {
    font-size: 20px;
    font-weight: 400;
    color: #666666;
    text-align: center;
    margin-top: 20px;
}

.content_bottom_div_step {
    display: flex;
    justify-content: space-between;
    margin: 50px 0;
}

.step_Img {
    margin-top: 80px;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
}

.content_bottom_div_step_item_num {
    margin-top: 30px;
    width: 150px;
    font-size: 20px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 32px;
    text-align: center;
}

.content_bottom_div_why {
    flex-wrap: wrap;
    display: flex;
    justify-content: space-between;
    padding-top: 50px;
}

.content_bottom_div_why_item {
    padding-bottom: 50px;
    width: 282px;
    text-align: center;
    font-weight: 400;
}

.content_bottom_div_why_item img {
    height: 58px;
}

.content_bottom_div_why_item_tit {
    font-size: 24px;
    color: #222222;
    margin-top: 30px;
    font-weight: bold;
    margin-bottom: 20px;
}

.content_bottom_div_why_item_txt {
    font-size: 16px;
    color: #666666;
    line-height: 28px;
}

.content_bottom_div_new {
    padding-top: 50px;
}

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

.content_bottom_div_new_item {
    margin-top: 100px;
}

.content_bottom_div_new_item_txt {
    width: 586px;
}

.content_bottom_div_new_item_img {
    width: 486px;
    height: 550px;
    border-radius: 10px;
}

.content_bottom_div_new_item_txt_line {
    display: flex;
    margin: 30px 0;
}

.content_bottom_div_new_item_txt_tit {
    font-size: 30px;
    font-weight: bold;
    color: #222222;
    line-height: 44px;
}

.content_bottom_div_new_item_txt_line>div {
    width: 60px;
    height: 6px;
    background: #1F4DB2;
    border-radius: 3px;
}

.content_bottom_div_new_item_txt_line>div:nth-child(2) {
    background: #FF852B;
    position: relative;
    left: -10px;
}

.content_bottom_div_new_item_txt_info {
    font-size: 16px;
    font-weight: 400;
    color: #999999;
    line-height: 28px;
}

.content_bottom_div_new_item_txt_info p {
    margin-bottom: 40px;
}

.content_bottom_div_new_item_txt_info h2 {
    color: #222222;
    font-size: 20px;
}

.content_bottom_div_new_item_txt_btn {
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 16px;
    color: #fff;
    width: 260px;
    height: 54px;
    background: #1F4DB2;
    border-radius: 6px;
}

.needFlex {
    flex-direction: row-reverse;
}

.content_bottom_div_opens {
    padding-top: 30px;
    padding-bottom: 100px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}



.content_bottom_div_open_item {
    width: 555px;
    padding: 10px 15px;
    border-radius: 10px;
    cursor: pointer;
    margin-bottom: 10px;
    align-self: baseline;
}

.content_bottom_div_open_item.e {
    background: #F5F5F5;
}

.content_bottom_div_open_item_tit img {
    transition: all ease 0.3s;
    width: 13px;
    height: 8px;
}

.content_bottom_div_open_item.e .content_bottom_div_open_item_tit img {
    transform: rotate(180deg);
}

.content_bottom_div_open_item_tit div {
    width: 434px;
}

.content_bottom_div_open_item_tit {
    font-size: 16px;
    font-weight: 400;
    color: #222222;
    line-height: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.content_bottom_div_open_item_txt {
    -webkit-animation: animaspan 2s 1;
    animation: animaspan 2s 1;
    animation-fill-mode: forwards;
    -webkit-animation-fill-mode: forwards;
    overflow: hidden;
    height: 0px;
    font-size: 12px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 20px;
    margin-top: 10px;
}

.content_bottom_div_open_item.e .content_bottom_div_open_item_txt {
    height: auto;
}

.content_bottom_div_new_one_img_bg {
    width: 570px;
    height: 378px;
    background: #1F4DB2;
    border-radius: 10px;
}

.content_bottom_div_new_one_img {
    width: 570px;
    position: relative;
}

.content_bottom_div_new_one {
    display: flex;
    justify-content: space-between;
    flex-direction: row-reverse;
}

.content_bottom_div_new_one_img img {
    position: absolute;
    top: -53px;
    right: -53px;
}

.content_bottom_div_new_one_txt {
    width: 484px;
}

.content_bottom_div_new_one_txt .content_bottom_div_new_item_txt_info p {
    margin-bottom: 20px;
}

.content_bottom_div_new_one_txt_tit {
    font-size: 24px;
    font-weight: 400;
    color: #222222;
    line-height: 32px;
    margin-bottom: 24px;
}

.content_bottom_div_new_one_change {
    display: flex;
    justify-content: flex-end;
}


.content_bottom_div_new_one_change div {
    width: 34px;
    height: 34px;
    background: #333333;
    opacity: 0.5;
    border-radius: 50%;
    margin-left: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.left_change>img {
    transform: rotate(-180deg);
}

.content_bottom_div_new_one_txt_item,
.content_bottom_div_new_one_img_item {
    transition: all ease 0.3s;
    display: none;
}

.content_bottom_div_new_one_txt_item.e,
.content_bottom_div_new_one_img_item.e {
    display: block;
}

.left_change.e,
.right_change.e {
    background: #B6B6B6;
}

@media screen and (min-width: 751px) {

    .nav_choose_item {
        flex: 1;
        border-right: 1px solid #D7D7D7;
    }

    .nav_choose_item:last-child {
        border-right: none;
    }

    body {
        background-color: #f5f5f5;
    }
}

@media screen and (max-width: 750px) {
    .content_bottom_section {
        padding: 1.5rem 0;
        margin-top: 1.5rem;
    }

    .content_bottom_section .content_bottom_div {
        padding-top: 0px;
    }

    .wapnone {
        display: none;
    }

    .banner {
        height: 13.07rem;
        background: url(../images/index_wapBanner.png);
        background-size: 100% 100%;
    }

    .banner_search {
        width: 100%;
        padding: 0 0.5rem;
        padding-top: 5.05rem;
    }

    .nav_choose_father {
        width: 6.9rem;
        box-shadow: .04rem .07rem .4rem 0px rgba(0, 4, 85, 0.1);
        border-radius: .2rem;
        margin-top: .5rem;
        border-radius: .2rem;
        position: relative;
    }

    .nav_choose_father .myswiper {
        padding-bottom: .3rem;
    }

    .nav_choose_father .myswiper .swiper-pagination {
        top: unset;
        bottom: .05rem;
    }

    .nav_choose_father_title {
        font-size: .44rem;
        line-height: .6rem;
        text-align: center;
        width: 6.7rem;
    }

    .nav_choose_father_content {
        margin-top: .3rem;
        font-size: .28rem;
        line-height: .44rem;
        width: 6.7rem;
    }

    .nav_choose {
        width: auto;
        height: 5rem;
        display: block;
        padding: 0;
    }

    .nav_choose_item {
        width: 6.9rem !important;
        padding: 0;
        width: 100%;
    }

    .nav_choose_item img {
        width: 1.36rem;
        height: 1.36rem;
        margin-top: .7rem;
        margin-bottom: .4rem;
    }

    .nav_choose_item_title {
        font-size: .4rem;
        line-height: .3rem;
    }

    .nav_choose_item_txt {
        width: 4.74rem;
        margin-top: .32rem;
        font-size: .28rem;
        line-height: .42rem;
    }

    .content_section_title {
        padding-top: 1.5rem;
        font-size: .44rem;
        width: 6.9rem;
        margin: 0 auto;
        line-height: .6rem;
    }

    .content_section_div {
        display: block;
        width: 6.9rem;
        margin: 0 auto;
        padding: .5rem 0;
    }


    .content_section_div_item {
        width: 6.9rem;
        height: auto;
        padding: .50rem .52rem;
        margin-bottom: .5rem;
    }

    .content_section_div_item_title {
        font-size: .48rem;
    }

    .content_section_div_item_price {
        margin-top: .3rem;
        font-size: .6rem;
    }


    .content_section_div_item_content>p {
        font-size: .32rem;
        line-height: .52rem;
        margin-bottom: .5rem;
    }

    .content_section_div_item_content>p:last-child {
        margin-bottom: 0px;
    }

    .content_section_div_item_btn {
        bottom: .41rem;
    }

    .content_section_div_item_btn div {
        width: 5.85rem;
        height: .86rem;
        border-radius: 6px;
        font-size: .28rem;
    }

    .content_section_div_item:last-child {
        margin-bottom: 0px;
    }

    .readmore {
        margin-top: .2rem;
    }

    .content_section_div_item_content {
        margin-top: .45rem;
    }

    .content_section_btn {
        width: 6.9rem;
        height: 1.08rem;
        border-radius: .2rem;
        font-size: .32rem;
    }

    .content_section_tel {
        font-size: .28rem;
        margin-top: .4rem;
        margin-bottom: 0rem;
    }

    .content_bottom_div {
        padding-top: 1.5rem;
    }

    .w1170 {
        width: 6.9rem;
    }

    .content_bottom_div_tit {
        font-size: .44rem;
        line-height: .6rem;
        text-align: center;
    }

    .content_bottom_div_txt {
        margin-top: .3rem;
        font-size: .28rem;
        line-height: .44rem;
    }

    .content_bottom_div_step {
        margin-top: .6rem;
        margin-bottom: 0px;
    }

    .content_step_bottom_div .content_section_btn {
        margin-top: .5rem;
    }

    .content_bottom_div_step_item img {
        display: block;
        width: 3.2rem;
        height: 3.2rem;
        margin: 0 auto;
    }

    .content_bottom_div_step_item_num {
        width: 3rem;
        font-size: .4rem;
        line-height: .6rem;
        margin: .6rem auto;
    }

    .content_bottom_div_why_item {
        width: 5.62rem;
        font-size: .32rem;
        line-height: .56rem;
        margin: 0 auto;
    }

    .content_bottom_div_why_item_tit {
        font-size: .48rem;
        margin-top: .6rem;
        margin-bottom: .4rem;
    }

    .content_bottom_div_why_item img {
        height: 1.8rem;
    }

    .content_bottom_div_why_item_txt {
        font-size: .32rem;
        line-height: .56rem;
    }

    .content_bottom_div_why {
        padding-top: .8rem;
    }

    .content_bottom_div_new {
        padding-top: 1rem;
    }

    .content_bottom_div_new_item,
    .content_bottom_div_opens {
        display: block;
    }

    .content_bottom_div_new_item_img img,
    .content_bottom_div_new_item_img {
        width: 4.86rem;
        height: 5.5rem;
        border-radius: .1rem;

    }

    .content_bottom_div_new_item_img {
        margin: 1rem auto;
    }

    .content_bottom_div_new_item {
        margin-top: 0;
    }

    .content_bottom_div_new_item_txt_info,
    .content_bottom_div_new_item_txt {
        width: 6.05rem;
        margin: 0 auto;
    }

    .content_bottom_div_new_item_txt_tit {
        font-size: .44rem;
        line-height: .64rem;
    }

    .content_bottom_div_open_item {
        width: 6.9rem
    }

    .content_bottom_div_new_item_txt_line {
        margin: .5rem 0;
    }

    .content_bottom_div_new_item_txt_info p {
        margin-bottom: .4rem;
    }

    .content_bottom_div_new_item_txt_info h2 {
        margin-bottom: .2rem;
        font-size: .35rem;
    }

    .content_bottom_div_new_item_txt_info {
        font-size: .24rem;
        line-height: .28rem;
    }

    .content_bottom_div_new_item_txt_btn {
        transform: translateX(-0.42rem);
        width: 6.9rem;
        height: 1.08rem;
        font-size: .32rem;
        border-radius: .2rem;
    }

    .content_bottom_div_open_item {
        padding: .3rem;
    }

    .content_bottom_div_open_item_tit div {
        width: 4.43rem;
        font-size: .28rem;
        line-height: .34rem;
    }

    .content_bottom_div_open_item_txt {
        font-size: .24rem;
        line-height: .28rem;
        margin-top: .2rem;
    }

    .content_bottom_div_opens {
        padding-top: .5rem;
        padding-bottom: 1rem;
    }

    .content_bottom_div_new_one_txt_tit {
        font-size: .34rem;
        margin-top: .45rem;
        margin-bottom: .3rem;
        text-align: center;
    }

    .content_bottom_div_new_one_img,
    .content_bottom_div_new_one_img_bg {
        width: 5.7rem;
        height: 3.78rem;
        background: #1F4DB2;
        border-radius: .1rem;
        margin: 0 auto;
    }

    .content_bottom_div_new_one_txt {
        width: 6.9rem;
    }

    .content_bottom_div_new_one_img img {
        width: 5.7rem;
        height: 3.78rem;
        top: -0.53rem;
        right: -0.53rem;
    }

    .content_bottom_div_new_one_change {
        justify-content: center;
    }

    .content_bottom_div_new_one_change div {
        width: .68rem;
        height: .68rem;
        margin-left: .4rem;
    }

    .content_bottom_div_new_one_change div:nth-child(1) {
        margin-left: 0px;
    }


}