.practice {
    width: 100%;
    background-image: url(../image/52.jpg);
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

.pra_det {
    width: 1200px;
    margin: 0 auto;
    padding: 40px 0;
}

.pra_nav {
    font-size: 16px;
    display: flex;
    justify-content: flex-start;
}

.pra_nav a {
    color: #333;
    margin: 0 10px;
}
.pra_nav a:nth-of-type(1){
    font-weight: bold;
}
.pra_nav img {
    width: 14px;
    height: 14px;
}

.pra_det ul {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    padding-top: 30px;
}

.pra_det ul li {
    width: 385px;
    margin-bottom: 50px;
    background: #fff;
	    border: 1px solid #eee;
}

.pra_det ul li img {
    width: 100%;
    height: 240px;
}

.li_name {
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 20px;
    font-weight: bold;
    padding: 25px 0 20px;
    color: #000;
}

.li_det {
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
    color: #333;
}

.page_1 {
    width: 1200px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    justify-content: flex-end;
}

.page_1 a {
    margin: 0 10px;
    color: #999;
    width: 60px;
    height: 20px;
    text-align: center;
    line-height: 20px;
}

.page_1 a.active {
    /* color: #0000ee; */
    color: #fff;
}

.int {
    border: 1px solid #BC0007;
    width: 70px;
    height: 20px;
    text-align: center;
}

.page_1 div {
    font-size: 16px;
    margin: 0 10px;
    color: #333;
}