.banImg{
    height: 90vh;
    width: 100%;
    opacity: 0.7;
}
.banner{
    position: relative;
}
/* 将文字初始设为透明 */
.hidden {
    opacity: 0;
    transition: opacity 1s ease-in-out;
    position: absolute;
    font-size: 3.5vw;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: #fff;
    font-weight: bolder;
}
.box{
    width: 100%;
    display: flex;
    margin-bottom: 100px;
    justify-content: space-around;
    flex-wrap: wrap;
}
.info{
    width: 40%;
    display: flex;
    margin-top: 30px;
    flex-direction: column;
    align-items: baseline;
}
.infotitle{
    height: 60px;
    width: 120px;
    background-color: #fff;
    font-size: 28px;
    font-family: Arial;
    line-height: 60px;
    border-bottom: 2px solid #2255d5;
}
.infotext{
    margin-top: 30px;
}
@media (max-width: 767px) {
    .banImg{
        height: 30vh;
        width: 100%;
    }
    .info{
        width: 80%;
    }
}