.body {
        background-color: #f3f8ff;
    }
    
    .box {
        width: 1200px;
        height: auto;
        margin: 0 auto;
        margin-bottom: 50px;
        overflow: hidden;
        background: white;
        box-shadow: 0px 0px 20px 0px rgba(223, 223, 223, 0.75);
        padding: 25px 30px;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        /* margin-top: 30px; */
    }
    
    .box box {
        flex: 0 0 380px;
        /* background-color: aqua; */
        /* height: 700px; */
        width: 380px;
    }
    
    .box .box1 {
        background-color: #f5f5f5;
    }
    
    .box1_top video {
        width: 100%;
        height: 260;
    }
    
    .box1_center p {
        padding: 15px 20px;
        line-height: 32px;
        /* font-size: 16px; */
    }
    
    .box1_center p a .xq {
        color: #4c80e3;
    }
    
    .box1_bottom {
        padding-bottom: 15px;
    }
    
    .box1_bottom ul {
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        flex-wrap: wrap;
    }
    
    .box1_bottom ul li {
        flex: 0 0 100px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        border: 1px solid #cccc;
        margin-bottom: 10px;
    }
    
    .box1_bottom ul li:nth-child(1) {
        background-color: #2550a4;
        color: #fff;
    }
    
    .box1_bottom ul li:nth-child(1) a {
        color: #fff;
    }
    
    .box2 .title a {
        display: block;
        width: 100%;
        height: 45px;
        font-weight: bold;
        font-size: 22px;
        color: #2550a4;
        border-bottom: 1px solid #ccc;
    }
    
    .box2 ul.content {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        font-size: 16px;
    }
    
    ul.content li {
        padding-left: 10px;
        flex: 0 0 100%;
        display: flex;
        justify-content: space-between;
        line-height: 48px;
        border-bottom: 1px dashed #cccc;
        background: url(./dian.jpg) no-repeat left center;
        background-size: 5px 5px;
        display: flex;
        flex-direction: row;
    }
    
    .box2 ul.content li a {
        flex: 0 0 70%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    ul.content li span {
        flex: 0 0 25%;
    }
    
    .box2 .title a {
        display: block;
        width: 100%;
        height: 45px;
        font-weight: bold;
        font-size: 22px;
        color: #2550a4;
        border-bottom: 1px solid #ccc;
    }
    
    .box2 .lbt img {
        width: 100%;
        height: 140px;
        margin: 20px 0 10px 0;
    }
    
    .box2_bottom a img {
        width: 100%;
        margin-top: 30px;
    }
    
    .box3 .title a {
        display: block;
        width: 100%;
        height: 45px;
        font-weight: bold;
        font-size: 22px;
        color: #2550a4;
        border-bottom: 1px solid #ccc;
    }
    
    .box3 ul.content {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        font-size: 16px;
        padding-top: 10px;
    }
    
    .box3 ul.content li a {
        flex: 0 0 70%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    ul.content li span {
        flex: 0 0 25%;
    }
    
    .box3 .title a {
        display: block;
        width: 100%;
        height: 45px;
        font-weight: bold;
        font-size: 22px;
        color: #2550a4;
        border-bottom: 1px solid #ccc;
    }
    
    .box3 .lbt2 img {
        width: 100%;
        height: 105px;
        margin-top: 20px;
    }
    
    .box3_bottom .bb_top {
        display: flex;
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        margin-bottom: 10px;
    }
    
    .bb_box1{
        display: inline-block;
        width: 178px;
        height: 54px;
        line-height: 54px;
        background-image: linear-gradient(
            #e9f4fd, 
            #e9f4fd), 
        linear-gradient(
            #e5e5e5, 
            #e5e5e5);
        background-blend-mode: normal, 
            normal;
    }

    .bb_box2{
        display: inline-block;
        width: 117px;
        height: 83px;
        background-image: linear-gradient(
            #e9f4fd, 
            #e9f4fd), 
        linear-gradient(
            #e5e5e5, 
            #e5e5e5);
        background-blend-mode: normal, 
            normal;
        text-align: center;
    }

    .bb_top a:nth-child(1) .bb_box1 img {
        margin: 13px 24px;
        float: left;
    }

    .bb_top a:nth-child(2) .bb_box1 img {
        margin: 10px 24px;
        float: left;
    }
    
    .box3_bottom .bb_bottom {
        display: flex;
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
    }
    
    .box3_bottom .bb_bottom a img {
        /* flex: 0 0 30%;
        height: 85px; */
        display: block;
        margin: 18px auto 10px;
    }
    
    .box2_bottom {
        overflow: hidden;
    }
    
    .box2_bottom a {
        position: relative;
    }
    
    span.yqly_title {
        position: absolute;
        top: 0px;
        display: block;
        left: 28%;
        font-size: 24px;
        color: #fff;
        border: 2px solid #ccc;
        width: 170px;
        height: 55px;
        text-align: center;
        line-height: 50px;
        /* background: rgba(0, 0, 0, .2); */
        background: url(./bg_t.png);
    }
    
    .box .box2_bottom a:hover img,
    .box .box3_bottom a:hover span {
        transform: scale(1.1);
    }
    
    .lbt2,
    .lbt {
        overflow: hidden;
    }
    
    .box1_bottom ul li.active {
        background-color: #2550a4;
    }
    
    .box1_bottom ul li:hover {
        background-color: #2550a4;
    }
    
    .box1_bottom ul li:hover a {
        color: #000;
    }
    
    .box4 {
        margin-top: 30px;
        width: 100%;
        line-height: 60px;
        background-color: #f5f5f5;
    }
    
    .b4_title {
        float: left;
        margin: 0 30px;
        font-weight: bold;
        color: #000;
    }
    
    .b4_content {
        display: flex;
        flex-direction: row;
    }
    
    .b4_content li {
        flex: 0 0 auto;
        margin-right: 25px;
    }
    
    .b4_content li a {
        padding: 5px 25px;
        border-radius: 20px;
        background-color: #fff;
    }
    
    .ul_nav li a img {
        display: block;
        margin: 15px;
        width: 35px;
        height: 30px;
    }
    
    .ul_nav li a span {
        display: block;
        color: #fff;
        text-align: center;
    }
    
    .b4_content li:hover a {
        background-color: #2550a4;
        color: #fff;
    }