.teacher h2 {
    font-size: 36px;
    padding-top: 20px;
    text-align: center;
    color: #191919;

}
.main-w {
    width: 1200px;
    margin: 0 auto;
}
.teacher hr {
    width: 70px;
    border: 1px solid #1968b2;
    margin: 14px auto;
}
.teacher .des {
    font-size: 24px;
    color: #7b7b7b;
    text-align: center;
}
.teacher ul {
    margin-top: 30px;
}
.teacher ul li {
    height: 488px;
    width: 376px;
    border: 1px solid #d2deea;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 0 25px 25px;
    float: left;

}
.teacher ul li:nth-child(3n+1) {
    margin-left: 0;
}
.teacher ul li .img {
    height: 422px;
    background-color: #d2deea;
    overflow: hidden;
}
.teacher ul li .box {
    height: 218px;
    z-index: 10;
    background-color: #fff;
    position: relative;
    bottom: 0px;
    transition: bottom 0.3s linear 0s;
}
.teacher ul li:hover .box{
    position: relative;
    bottom: 152px;
}
.teacher ul li:hover .box .title {
    border-bottom: 1px dotted #ccc;
}
.teacher ul li .box .title {
    width: 334px;
    height: 56px;
    margin: 5px auto 0 auto;
}
.teacher ul li .box .title .name {
    font-size: 26px;
    font-weight: bold;
    line-height: 56px;
    padding: 0 15px;
}
.teacher ul li .box .title .t {
    display: inline-block;
    width: 200px;
    height: 34px;
    font-size: 20px;
    color: #7b7b7b;
    border-left: 2px solid #d2deea;
    line-height: 2;
    padding-left: 10px;
}
.teacher ul li .box .kc {
    height: 60px;
    padding: 16px 20px;
    font-size: 16px;
    line-height: 1.5;
    overflow:hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 3;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}
.teacher ul li .box .btn {
    width: 218px;
    height: 40px;
    margin: 10px auto;
    background-color: #1968b2;
    color: #fff;
    font-size: 18px;
    line-height: 2;
    text-align: center;
    cursor: pointer;
}