#navbar .nav-menu:first-child{
    padding-left: 0;
}
.through_img{
    width: 100%;
    height: 260px;
    background-image: url("../images/825381d857ba1493.jpg");
    background-position: center center;
}
.through_img>div{
    position: relative;
    height: 100%;
}
.through_img p{
    position: absolute;
    left: 0;
    top: 32px;
}
.through_img p,.through_img p a{
    font-size: 14px;
    color: #fff;
}
.through_img h3{
    text-align: center;
    color: #fff;
    font-size: 36px;
    font-weight: bold;
    height: 260px;
    line-height: 260px;
}
.main_content>ul{
    width: 1240px;
    margin-left: -40px;
    padding-top: 22px;
}
.main_content>ul li{
    margin-left: 40px;
    float: left;
    width: 580px;
    height: 326px;
    border-bottom: 4px solid #f5f5f5;
    margin-top: 38px;
    position: relative;
    transition: all 0.5s;
}
.main_content>ul li::after{
    content: "";
    display: block;
    width: 0;
    height: 4px;
    position: absolute;
    left: 50%;
    bottom: -4px;
    transform: translateX(-50%);
    border-bottom: 4px solid #4b9a7b;
    transition: all 0.5s;
}
.main_content>ul li a{
    display: block;
}
.main_content>ul li img{
    display: block;
    width: 580px;
    height: 260px;
}
.main_content>ul li p{
    line-height: 62px;
    padding-left: 16px;
    font-size: 20px;
    color: #333;

    /* transition: all 0.5s; */
}
.main_content>ul li:hover{
    transform: translateY(-1px);
}
.main_content>ul li:hover p{
    box-shadow: 2px 2px 24px -6px rgba(51, 51, 51, 0.1);
}
.main_content>ul li:hover::after{
    width: 100%;
}


/*移动端*/
@media screen and (max-width: 768px){
    .through_img {
        width: 100%;
        height: 3.6rem;
        background-image: url(../images/825381d857ba1493.jpg);
        background-position: center center;
    }
    .centerArea {
        width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .through_img p {
        position: absolute;
        left: 0.3rem;
        top: 0.3rem;
    }
    .through_img h3 {
        text-align: center;
        color: #fff;
        font-size: 0.5rem;
        font-weight: bold;
        height: 3.6rem;
        line-height: 3.6rem;
    }
    .main_content>ul {
        width: calc(100% - 0.48rem);
        margin-left: 0.24rem;
        padding-top: 0;
    }
    .main_content>ul li {
        margin-left: 0;
        float: left;
        width: 100%;
        height: 4rem;
        border-bottom: 0.04rem solid #f5f5f5;
        margin-top: 0.7rem;
        position: relative;
        transition: all 0.5s;
    }
    .main_content>ul li img {
        display: block;
        width: 100%;
        height: 3rem;
    }
    .main_content>ul li p {
        line-height: 1rem;
        padding-left: 0.1rem;
        font-size: 0.3rem;
        color: #333;
        /* transition: all 0.5s; */
    }
.through_img p, .through_img p a {
    font-size: 0.2rem;
    color: #fff;
}
}