.teacon_t {
    display: flex;
    align-items: flex-end;
    margin-bottom: 25px;
}

.teacon_t img {
    width: 280px;
}

.teacon_t_r {
    flex: 1;
    overflow: hidden;
    box-sizing: border-box;
    padding: 0px 40px 30px;
    position: relative;
    line-height: 1.5;
    min-height: 240px;
}
.teacon_t_r::before{content: "";display: block;width: 100%;height: calc(100% - 0.75em);position: absolute;left: 0;bottom: 0;background: #d0ddf2;z-index: -1;}

.teacon_t_r h3 {
    font-weight: normal;
}

.teacon_t_r p {
    margin: 10px 0 0;
}

.teacon_m {
    margin-bottom: 25px;
    line-height: 1.5;
}

.teacon_m>h3 {
    padding-bottom: 10px;
    border-bottom: 1px solid #d9d9d9;
    position: relative;
    color: #333;
    font-weight: 600;
    margin-bottom: 10px;
}

.teacon_m>h3::before {
    content: "";
    display: inline-block;
    vertical-align: middle;
    width: 3px;
    height: 1em;
    background: #1d4994;
    margin-right: 20px
}

.teacon_m_b {
    line-height: 1.8; 
    box-sizing: border-box;
    padding-left: 25px;
}

@media screen and (max-width:768px) {
    .teacon_t {
        flex-direction: column;
    }

    .teacon_t img {
        margin: 0 auto;
    }

    .teacon_t_r {
        flex: none;
        width: 100%;
        background: none;
        padding: 20px 0 0;
        min-height: initial;
    }
    
    .teacon_t_r::before{display: none;}
}