html,
body {
    font-size: 18px;
    overflow-x: clip;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    margin: 0;
    padding: 0;
    background-color: #f3f3f3;
}

a {
    color: #2d2e2f;
    outline: none;
    text-decoration: none;
}

a:link {
    text-decoration: none;
}

a:visited {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

a:active {
    text-decoration: none;
}

a:focus {
    text-decoration: none;
}

.nav_item .nav_con {
    top: 70px !important;
}

/* =================================================== */

.wrapper {
    background: url(../img/public-bg2.png) no-repeat;
    background-size: cover;
}
.wrapper-con{
    padding:0;
}

.cooperation{
    max-width: 1920px;
    margin: 0 auto;
}
.cooperation-con{
    width: 1200px;
    margin: 0 auto;
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    overflow: hidden;
}
.cooperation-con>div{
    width: 381px;
    padding: 10px 10px 20px 10px;
    border-radius: 20px;
    background: url(../img/cooperation-bg.png) no-repeat;
    background-size: 100% 100%;
    box-sizing: border-box;
}
.cooperation-con .b-line{
    width: 63px;
    height: 3px;
    background-color: #0047a2;
    margin: 0 auto;
    margin-bottom: 35px;
}
.cooperation-con>div h2{
    height: 88px;
    line-height: 88px;
    font-size: 28px;
    font-weight: 600;
    color: #0047a2;
    text-align: center;
}
.cooperation-con>div p{
    font-size: 20px;
    height: 40px;
    line-height: 35px;
    color: #737373;
    text-align: center;
}
.cooperation-con>div:nth-child(2){
    background: url(../img/cooperation-bg2.png) no-repeat;
    background-size: 100% 100%;
}
.cooperation-con>div:nth-child(3){
    background: url(../img/cooperation-bg3.png) no-repeat;
    background-size: 100% 100%;
}
.cooperation-con .main-img{
    margin: 0;
    border-radius: 10px;
    overflow: hidden;
}
.cooperation-con .main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.co-banner-bottom{
    margin: 0 auto;
    margin-top: 30px;
    background-image: url(../img/cooperation-bottom.png);
    height: 100px;
    width: 1200px;
    background-size: cover;
    text-align: start;
    background-position: center;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
}
.co-banner-bottom span {
    width: 30%;
    height: 100px;
    display: inline-block;
    line-height: 100px;
    position: relative;
    color: #fff;
}

.co-banner-bottom span:nth-child(2)::before {
    content: "";
    display: inline-block;
    background-image: url(../img/youxiang.png);
    background-size: 63%;
    background-repeat: no-repeat;
    background-position: center;
    width: 28px;
    height: 28px;
    position: relative;
    top: 9px;
    right: 10px;
    border-radius: 16px;
    border: 2px #fff solid;
}
.co-banner-bottom span:nth-child(3)::before {
    content: "";
    display: inline-block;
    background-image: url(../img/dianhua.png);
    background-size: 60%;
    background-repeat: no-repeat;
    background-position: center;
    width: 28px;
    height: 28px;
    position: relative;
    top: 9px;
    right: 10px;
    border-radius: 16px;
    border: 2px #fff solid;
}
.co-banner-bottom h1 {
    position: relative;
    display: inline-block;
    font-size: 26px;
    left: 0;
    margin-left: 10%;
    color: #fff;
    width: 30%;
}
.co-banner-bottom h1::before {
    content: "";
    display: inline-block;
    background-image: url(../img/point.png);
    background-color: #ffffff6b;
    background-size: 50%;
    background-repeat: no-repeat;
    background-position: center;
    width: 22px;
    height: 22px;
    position: relative;
    top: 2px;
    right: 10px;
    border-radius: 16px;
}
.blank{
    height: 40px;
}

@media screen and (max-width: 900px) {
    .banner-con img {
        width: auto;
        height: 104%;
        object-fit: cover;
    }
    .cooperation {
        width: 90%;
    }
    .cooperation-con {
        width: 100%;
        flex-direction: column;
    }
    .cooperation-con>div div {
        margin-bottom: 20px;
    }
    .cooperation-con>div {
        height: auto;
        margin-bottom: 30px;
        width: 100%;
        padding: 10px;
    }
    .cooperation-con>div p {
        font-size: 18px;
    }
    .cooperation-con>div h2  {
        padding-top: 0;
        height: 60px;
        line-height: 70px;
        font-size: 26px;
    }
    .co-banner-bottom {
        width: 100%;
        height: 140px;
        flex-wrap: nowrap;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        text-align: center;
        background: unset;
        margin: 20px auto;
    }
    .co-banner-bottom>* {
        width: 100% !important;
        height: auto !important;
        line-height: normal !important;
        margin: 0 0 !important;
        display: flex !important;
        justify-content: center;
        align-items: center;
        flex: 1;
        color: #0047a2 !important;
    }
    .co-banner-bottom>*::before {
        top: 0 !important;
    }
    .co-banner-bottom h1 {
        font-weight: 600;
        align-items: flex-start;
    }
    .co-banner-bottom h1::before {
        content: none;
    }
    .co-banner-bottom span {
        font-size: 16px;
    }
    .co-banner-bottom span:nth-child(2)::before {
        background-image: url(../img/youxiang-m.png);
        border: 1px #0047a2 solid;
    }
    .co-banner-bottom span:nth-child(3)::before {
        background-image: url(../img/dianhua-m.png);
        border: 1px #0047a2 solid;
    }
}