.content {
    width: 1200px;
    margin: 0 auto;
}

.tdj , .ydj {
    width: 1200px;
    text-align: center;
}

.tdj .tit-t , .ydj .tit-y {
    width: 1200px;
    height: 60px;
    margin: 0 0 5px;
    
}



.tdj .tit-t h2 , .ydj .tit-y h2 {
    display: block;
    position: relative;
    line-height: 60px;
    height: 60px;
    margin: 0 auto;
    font-size: 30px;
    letter-spacing: 8px;
    width: 130px;
    text-align: center;
}

.tdj .tit-t h2 .front-line , .ydj .tit-y h2 .front-line {
    position: absolute;
    width: 50px;
    height: 2px;
    background-color: #3460ab;
    left: -50px;
    top: 50%;
}

.tdj .tit-t h2 .back-line , .ydj .tit-y h2 .back-line {
    position: absolute;
    width: 50px;
    height: 2px;
    background-color: #3460ab;
    right: -50px;
    top: 50%;
}

.tdj .tit-t h2::after , .ydj .tit-y h2::after {
    content: ""; /* 创建一个伪元素 */
    display: inline-block; /* 显示为行内块元素 */
    width: 0; /* 宽度为0 */
    height: 0; /* 高度为0 */
    margin-right: -8px; /* 通过负边距抵消前面的间距 */
  }

.list-t {
    margin: 15px auto;
    display: inline-block;
}

.list-t li:before {
    content: '';
    position: absolute;
    width: 5px;
    top: 5px;
    bottom: -5px;
    right: -5px;
    background: #3460ab;
}

.list-t li:after {
    content: '';
    position: absolute;
    height: 5px;
    left: 5px;
    bottom: -5px;
    right: -5px;
    background: #3460ab;
}

.list-t li {
    position: relative;
    float: left;
    width: 300px;
    height: 150px;
    margin: 0 15px;
    border: 1px solid #ccc;
    box-shadow: 0 3px 10px #3460ab;
    transition: .3s all ease-in;
} 

.list-t li:hover {
    transform: translateY(-5px);
    
    background: #3460ab;
}

.list-t li:hover:before , .list-t li:hover:after {
    background: #ccc;
}

.list-t li:hover a {
    color: #fff;
}

.list-t li div {
    padding: 51px 20px;
}

.list-t li a {
    color: #444;
    font-size: 18px;
    height: 20px;
}