.bb_container {
    display: flex;
    flex-direction: row;
    /*项目在主轴的对齐方式为居中*/
    justify-content: center;
    align-items: center;
    height: 30vh;
    min-height: 60vh;
}

.bb_container .left {
    padding-right: 5%;
    display: flex;
    justify-content: flex-end;
    flex-direction: column;
}

.bb_container .left .title {
    font-weight: bold;
    font-size: 22px;
    line-height: 100px;
    color: #333333;
}

.bb_container .left .subtitle {
    font-size: 18px;
    line-height: 30px;
    color: #333333;
}

.bb_container .left .more {
    font-size: 14px;
    line-height: 100px;
    color: #666666;
    transition: font-weight 1s ease-in-out;
    -webkit-transition: font-weight 1s ease-in-out;
}
.bb_container .left .more:hover {
    font-size: 14px;
    font-weight: bold;
}

.bb_container .right {
    padding-left: 5%;
    display: flex;
    flex-direction: row;
}

.bb_container .right img {
    width: 500px;
    height: auto;
}