.list_teacher{
    width: 1400px;
    height: auto;
    margin: 0 auto;
    padding: 50px 0 50px 0;
}
.list_teacher_letter{
    width: 100%;
    max-width: 1400px;
    height: auto;
    margin: 0 auto;
}
.list_teacher_letter h3{
    width: 100%;
    height: auto;
    color: #005ca1;
    font-size: 30px;
    text-align: center;
    padding: 30px 0;
}
.list_teacher_letter ul{
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.list_teacher_letter li{
    width: 45px;
    height: 45px;
    /*line-height: 25px;*/
    background-color: #e7f3ff;
    padding: 0;
    border-radius: 5px;
    text-align: center;
    position: relative;
    box-sizing: border-box;
}
.list_teacher_letter_li1{
    width: calc((100% - 60px)/7);
}
.list_teacher_letter_li1 a{
    font-size: 15px!important;
}
.list_teacher_letter li.on{
    background-color: #005ca1;
}
.list_teacher_letter li.on a{
    color: #fff;
    font-weight: bold;
}
.list_teacher_letter li:hover{
    background-color: #005ca1;
}
.list_teacher_letter li:hover a{
    color: #fff;
}
.list_teacher_letter li a{
    width: 100%;
    height: 100%;
    line-height: 45px;
    text-align: center;
    display: block;
    color: #005ca1;
    font-size: 18px;
    box-sizing: border-box;
    text-decoration: none;
}
.list_teacher1{
    width: 100%;
    height: auto;
    margin-bottom: 50px;
}
.list_teacher_title{
    width: 100%;
    height: auto;
}
.list_teacher_title1{
    width: 100%;
    height: auto;
    display: flex;
    align-items: center;
}
.list_teacher_title1 h3{
    font-size: 22px;
    color: #2464b6;
    font-weight: bold;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(to right, #2464b6, #fff) 1;
    padding-bottom: 10px;
}
.list_teacher_title1 img{
    width: 35px;
    height: 25px;
    margin-right: 10px;
    object-fit: cover;
}
.list_teacher_title2{
    width: 100%;
}
.list_teacher_title2 img{
    width: 564px;
    height: 5px;
    margin-top: 15px;
}

.list_teacher_content{
    width: 100%;
    height: auto;
    box-sizing: border-box;
}
.list_teacher_content_ul{
    display: flex;
    flex-wrap: wrap;
    gap: 5px;             /* 项目间距，按需调整 */
    padding: 0;
    margin: 0;
    margin-top: 30px;
}
.list_teacher_content_li,
.list_teacher_content_li0 {
    width: calc((100% - 75px) / 15);
    box-sizing: border-box;
    transition: all 0.3s;

}
.list_teacher_content_li{

}
.list_teacher_content_li a {
    display: block;
    text-align: left;
    text-decoration: none;
    color: #666;
    transition: all 0.3s ease;
}
.list_teacher_content_li a p{
    height: 45px;
    font-size: 18px;
    color: #333;
    line-height: 45px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-style: normal;
}
.list_teacher_content_li * {
    transition: all 0.3s;
}
.list_teacher_content_li a:hover {
    color: #2464b6;
}
.list_teacher_content_li:hover a h3{
    color: #2464b6;
}
.jzz{
    font-size: 20px;
    text-align:center;
    padding:20px;
}
@media only screen and (max-width: 1000px) {
    *{
        box-sizing: border-box;
    }
    .main_er1 {
        width: 100%;
        height: auto;
        padding-top: 30px;
    }
    .list_teacher{
        width: 100%;
        height: auto;
        margin: 0 auto;
        padding: 0;
        margin-top: 30px;
        margin-bottom: 30px;
    }
    .jzz{
        font-size: 16px;
        text-align:center;
        padding:20px;
    }
    .list_teacher_letter{
        padding: 0 10px;
    }
    .list_teacher_letter h3{
        font-size: 24px;
        margin-top: 30px;
    }
    .list_teacher_letter_li1 a{
        font-size: 16px!important;
    }
    .list_teacher_letter ul{
        gap: 0 10px;
    }
    .list_teacher_letter li{
        background-color: #fff;
        width: calc((100% - 60px)/7);
        height: 45px;
        flex-shrink: 0;
    }
    .list_teacher_letter li a{
        font-size: 16px;
    }
    .list_teacher_letter li.on a{
        color: #fff;
    }
    .list_teacher1{
        width: 100%;
        height: auto;
        padding: 0;
        margin: 0;
    }
    .list_teacher_title{
        padding: 0 10px 0 20px;
        margin-bottom: 20px;
        margin-top: 20px;
    }
    
    .list_teacher_title1 img {
        width: 35px;
        height: auto;
        margin-right: 10px;
    }
    .list_teacher_title1 h3{
        font-size: 20px;
    }
    .list_teacher_title2{
        display: none;
    }
    .list_teacher_content{
        width: 100%;
        height: auto;
        box-sizing: border-box;
        padding: 0 20px 0;
        margin: 0 auto;
    }
    .list_teacher_content_ul{
        width: 100%;
        height: auto;
        margin-bottom: 10px;
        display: flex;
        gap: 10px 20px;
        flex-wrap: wrap;
        margin-top: 0;
    }
    .list_teacher_content_li {
        width: calc((100% - 60px)/4);
        height: auto;
        transition: all 0.3s;
        display: flex;
        flex-shrink: 0;;
        margin-top: 10px;
        flex-shrink: 0;
    }
    .list_teacher_content_li a p{
        height: 28px;
        line-height: 28px;
    }
    .list_teacher_content_li0{
        width: calc((100% - 20px)/3);
    }
    .list_teacher_content_li * {
        transition: all 0.3s;
    }

    .list_teacher_content_li a {
        width: 100%;
        display: block;
        overflow: hidden;
        height: auto;
    }
    .list_teacher_content_li a img {
        display: block;
        width: 100%;
        height: 230px;
        object-fit: cover;
        object-position: center;
    }
    .list_teacher_content_li a h3 {
        display: block;
        width: 100%;
        height: 60px;
        font-size: 16px;
        color: #333;
        text-align: center;
        line-height: 60px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        padding: 0;
        margin: 0;
        box-sizing: border-box;
    }
    .list_teacher_content_li:hover a h3{
        color: #2464b6;
    }
}