body{
    margin: 0;
    padding-top:60px;
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
    font-size: 14px;
    background-color: #f6f9fe;
}
nav,section {
    display: block;
}
/* nav{
    background:#fdfdfd;
} */
ul,ol{padding:0;list-style: none;margin: 0;}
a{
    text-decoration: none;
    color: #333;
}
.m-container{
    padding-left: 10px;
    padding-right: 10px;
}
@media  screen and (min-width: 1200px) {
    .m-container{
        width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 10px;
        padding-right: 10px;
    }
}
.anchor{ 
    margin-top: -60px;;
    padding-top: 60px;
    visibility: hidden;
}


/* nav */
.nav{
    width: 100%;
    background-color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    padding: none;
    box-shadow: 0px 0.02rem 0.3rem 0px #e7eaee;
}
.nav-content{
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 10px 0;
}
.navbar-toggler{
    color: #0000008c;
    border-color: #0000001a;
    padding: 0.25rem 0.75rem;
    font-size: 1.25rem;
    line-height: 1;
    background-color: #0000;
    border: 1px solid #0000;
    border-radius: 0.25rem;
    transition: box-shadow .15s ease-in-out;

}
.navbar-toggler-icon{
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.nav-img{
    width: 136px;
    height: 36px;
}
.nav-img img{
    width: 136px;
    height: 36px;
    margin: 0 auto;
}
.nav-line-content{
    width: 100%;
    display: none;
    /* display: flex;
    justify-content: space-around; */
}
.nav-line-content.active{
    display: block;
 
}
@media  screen and (min-width: 992px) {
    .navbar-toggler-icon{display: none}
    .nav-line-content{
        width: auto;
        display: flex;
        justify-content: space-around;
    }
}
.nav-line-content .nav-item{
    font-size: 14px;
    padding: 7px 20px;
    margin:0 8px;
    /* color: #333; */
}
.nav-line-content .nav-item.hover,.nav-line-content .nav-item:hover{
    background-color: #008cf6;
    
}
.nav-line-content .nav-item.hover a,.nav-line-content .nav-item:hover a{
    color:#fff;
}
/* banner */
.banner{
   background: #fff;
}
.banner .m-container{
    display: flex;
    justify-content: space-between;
    clear: both;
    height: 150px;
    align-items: center;
 }
.banner-text{
    font-size:20px;
    font-weight: bold;
}
.banner-img img{
    width: 120px;
    height: 120px;
}
@media screen and (min-width: 768px) {
    .banner .m-container{height: 250px;}
    .banner-text{
        font-size:24px;
    }
    .banner-img img{
        width: 220px;
        height: 220px;
    }
}
@media screen and (min-width: 992px) {
    .banner  .m-container{height: 250px;}
    .banner-text{
        font-size:24px;
    }
    .banner-img img{
        width: 220px;
        height: 220px;
    }
}
@media screen and (min-width: 1200px) {
    .banner .m-container{height: 450px;}
    .banner-text{
        font-size:48px;
    }
    .banner-img img{
        width: 370px;
        height: 370px;
    }
}
/* section */
.section-title {
    font-size: 24px;
    font-weight: bold;
}
.section-title-sub {
    font-size: 18px;
    font-weight: bold;
}
@media screen and (min-width: 992px){
    .section-title {
        font-size: 36px;
    }
    .section-title-sub {
        font-size: 26px;
    }
}

/* 我们的产品 */
.program{

}
.program-title{
    text-align: center;
    line-height: 1;
    padding: 30px 0 20px;
}
.program-content{
    width: 100%;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin: 0;
}
.program-item{
    width: 80%;
    box-shadow: 0px 0.02rem 0.3rem 0px #e7eaee;
    padding: 0 25px;
    background-color: #fff;
    overflow: hidden;
    margin-bottom: 15px;
}
.program-img{
    text-align: center;
}
.program-img img{
    width: 100%;
    height: auto;
    margin:15px auto;
}
.program-item:nth-child(3) img{
    width: 70%;
}
.program-item:nth-child(4) img{
    width: 60%;
}

.program-small-title{
    font-size: 14px;
    font-weight: bold;
    text-align: center;
    margin:0 auto 15px;
}
.program-text{
    font-size: 13px;

}
.program-bottom{
    width: 100%;
    margin:15px auto;
    overflow: hidden;
}
.program-more{
    font-size: 13px;
    color: #a3a4b1;
    display: block;
}
.program-link{
    display: block;
    font-size: 12px;
    color: #0b5cbc;
}
@media screen and (min-width: 768px) {

    .program-item{
        width: 42%;
        padding: 0 20px;
        margin-bottom: 15px;
    }
    .program-img img{
        margin:15px auto;
    }
    .program-small-title{
        font-size: 20px;
        margin:0 auto 15px;
    }
    .program-text{
        font-size: 18px;
    }
    .program-more, .program-link{
        font-size: 18px;
        margin-bottom: 10px;
    }
    .program-more{
        margin-bottom: 5px;
    }
}
@media screen and (min-width: 992px) {
    .program-title{
        padding: 60px 0 50px;
    }
    .program-item{
        width: 42%;
        padding: 0 20px;
        margin-bottom: 15px;
    }
    .program-img img{
        margin:15px auto;
    }
    .program-small-title{
        font-size: 20px;
        margin:0 auto 15px;
    }
    .program-text{
        font-size: 18px;
    }
    .program-more, .program-link{
        font-size: 18px;
        margin-bottom: 10px;
    }
    .program-more{
        margin-bottom: 5px;
    }
}
@media screen and (min-width: 1200px) {

    .program-content{
        justify-content: space-between;
        width: 1180px;
        margin:0 auto;
    }
    .program-item{
        width: 20%;
        padding: 0 15px;
        margin-bottom: 15px;
    }
    .program-img img{
        margin:20px auto;
    }
    .program-small-title{
        font-size: 20px;
        margin:0 auto 25px;
    }
    .program-text{
        font-size: 16px;
        line-height: 30px;
    }
    .program-bottom{
        margin-top:33px;
    }
    .program-more, .program-link{
        font-size: 14px;
        margin-bottom: 10px;
    }
    .program-more{
        margin-bottom: 5px;
    }
}
/* about */
.about{
    width: 90%;
    height: auto;
    margin:20px auto;
}
.about-img{
    text-align: center;
}
.about-img img{
    width: 80%;
    height: auto;
    margin: 0 auto;
}
.about-content{
    width: 100%;
    margin: 10px auto;
    padding: 15px 0;
    overflow: hidden;
    box-sizing: border-box;
}
.about-title{
    margin-bottom: 7px;
}
.about-sub-title{
    /* font-size: 14px; */
    margin-bottom: 15px;
    /* font-weight: bold; */
}
.about-text{
    width: 100%;
    font-size: 14px;
    line-height: 1.5;
    color: #6f6f6f;
}
.about-ul{
    font-size: 14px;
    color: #6f6f6f;
    line-height: 1.5;
}
.about-ul li{
    margin-top: 7px;
    display: flex;
    justify-items: flex-start;
}
.about-ul li::before{
    content: '';
    display: block;
    background: url('../img/icon.png') no-repeat center;
    background-size: contain;
    height: 1em;
    flex: 0 0 1em;
    margin-right: 5px;
    margin-top: 3px;
}
.about-ul li span{
    display: inline-block;
}
@media screen and (min-width: 768px) {
    /* .about-sub-title{
        font-size: 20px;
    } */
    .about-text,.about-ul{
        font-size: 16px;
        line-height: 30px;
    }
    .about-ul{
        line-height: 30px;
    }
    .about-ul li{
        margin-top:12px;
    }
    .about-ul li::before{
        margin-top: 6px;
    }
    /* .about-ul li::before{
        width: 20px;
        height: 20px;
        margin: 5px 10px 0 5px;
    } */
}
@media screen and (min-width: 992px) {
    /* .about-sub-title{
        font-size: 20px;
    } */
    /* .about-text,.about-ul{
        font-size: 18px;
        line-height: 32px;
    } */
    .about-ul{
        line-height: 30px;
    }
    .about-ul li{
        margin-top:12px;
    }
    /* .about-ul li::before{
        width: 20px;
        height: 20px;
        margin: 5px 10px 0 5px;
    } */
}
@media screen and (min-width: 1200px) {
    .about{
        width: 1180px;
        margin-top: 80px;
        display: flex;
        justify-content: space-between;
    }
    .about-img{
        width: 520px;
    }
    .about-img img{
        width: 100%;
    }
    .about-content{
        width: 53%;
        padding: 0;
        margin: 0;
    }
    /* .about-sub-title{
        font-size: 24px;
    } */
    .about-text,.about-ul{
        /* font-size: 18px; */
        line-height: 28px;
    }
    .about-ul{
        line-height: 30px;
    }
    .about-ul li{
        margin-top:8px;
    }
    .about-ul li::before{
        margin-top: 8px;
    }
    /* .about-ul li::before{
        width: 20px;
        height: 20px;
        margin: 5px 10px 0 5px;
    } */
}
/* tel */
.tel-section{
    background: #0099ff;
}
.tel{
    width: 100%;
    height: 100px;
    font-size: 16px;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0099ff;
    /* padding: 0 20px; */
    box-sizing: border-box;
}
.tel div{
    font-size: 14px;
    line-height: 30px;
    display: flex;
    align-items: center;
}
.tel div:before{
    content: '';
    background: url('../img/tel.png');
    background-size: contain;
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: 7px;
}

@media screen and (min-width: 768px) {
    .tel{
        height: 160px;
        font-size: 28px;
        /* padding: 0 40px; */
    }
    .tel div{
        font-size: 24px;
        line-height: 30px;
    }
    .tel div:before{
        width: 60px;
        height: 60px;
        margin-right: 17px;
    }
}
@media screen and (min-width: 992px) {
    .tel{
        height: 160px;
        font-size: 28px;
        /* padding: 0 40px; */
    }
    .tel div{
        font-size: 24px;
        line-height: 30px;
    }
    .tel div:before{
        width: 60px;
        height: 60px;
        margin-right: 17px;
    }
}
@media screen and (min-width: 1200px) {
    .tel{
        height: 170px;
        font-size: 44px;
        /* padding: 0 360px; */
    }
    .tel div{
        font-size: 26px;
        line-height: 30px;
    }
    .tel div:before{
        width: 60px;
        height: 60px;
        margin-right: 17px;
    }
}



/* foot */
.footer {
    padding: 10px;
    background-color: #fff;
    font-size: 16px;
}
.footer p{
    margin: 0;
}
.footer-sub-title{
    font-size: 20px;
    font-weight: bold;
}
.footer-ya-list-logo,
.footer-font,
.footer-ya-list-qr{
    font-size: 18px;
}
.footer-ya-list-logo .beian a{
    font-size: 16px;
    color: #6a6a6a;
}
.footer-ya-list-qr{
    display: flex;
    justify-content: space-around;
}
.footer-ya-list-qr .footer-img{
    text-align: center;
    display: inline-block;
    width: 125px;
}
.footer-ya-list-qr img{
    width: 100%;
}
.footer-ya-list{
    margin: 30px 0;
}
.footer-ya-list li{
    margin: 10px 0
}
@media screen and (min-width: 768px){
    .footer-main{
        display: flex;
        flex-wrap: wrap;
    }
    .footer-ya-list{
        width: 50%
    }
    .footer-ya-list-qr{
        width: 100%;
    }
    .footer-ya-list .footer-ya-img{
        margin-bottom: 17px;
    }
    .footer-ya-list-qr p{
        margin-top: 25px;
    }
}
@media screen and (min-width: 768px){
    .footer-ya-list,
    .footer-ya-list-qr{
        width: 33.33%;
    }
}