*{
    padding: 0;
    margin: 0;
    list-style: none;
    border: 0;
}

a{
    text-decoration: none;
}

.container{
    min-width:1280px;
}

.page-content{
    width: 100%;
    text-align: center;
}

/*
头部
 */
.page-content .head{
    width:100%;
    height: 330px;
    color: white;
    text-align: left;
}

.page-content .head img{
    width: 100%;
    position:absolute;
    height: 380px;
    top: 0;
    right: 0;
    left: 0;
    object-fit:cover;
    min-width: 1280px;
}


.subject {
    background-color: rgba(245,246,247,1);
    width: 100%;
    height: 550px;
}

.subject .catalog{
    text-align: left;
    color: #515151;
    font-size: 14px;
    width: 1280px;
    margin: 0 auto;
    padding-top: 50px;
}

.subject .catalog a{
    color: #515151;
}

.subject .content {
    margin: 0 auto;
    width: 1280px;
}

.subject .content li{
    width:400px;
    height: 400px;
    float: left;
    position: relative;
    margin: 15px 40px 0 0;
    background-color: #f9f9f9;
    box-shadow: 0px 4px 8px rgba(0,20,65,0.1);
}

.detail_li_right{
    margin-right: 0!important;
}

.subject .content img{
    width:400px;
    height: 215px;
    background-size: cover;
    background-repeat: no-repeat;
}

.subject .content .title{
    margin: 15px 0px;
    font-size: 17px;
    font-weight: bold;
}

.subject .content .desc{
    margin: 0px 50px;
    font-size: 15px;
    color: #5a5a5a;
}

.subject .content .link{
    position: absolute;
    bottom: 30px;
    margin-left: 155px;
    border: 1px solid #afafaf;
    width: 90px;
    border-radius:20px;
    height: 32px;
    line-height: 32px;
}

.subject .content .link a{
    color: #909090;
    font-size: 14px;
}

.subject .content  .link:hover{
    background-color: #0091FF;
    border: 1px solid transparent;
}

.subject .content  .link:hover a{
    color: white;
}

.subject .content  .link:active{
    background-color: #0082E4;
    border: 1px solid transparent;
}

.subject .content  .link:active a{
    color: white;
}

.page_foot{
    height: 350px;
}