.time-axis{
    margin: 50px 0;
}
.item-list{
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
}
.dash-line{
    width: 1000px;
    margin: 0 auto;
    position: relative;
    bottom: 100px;
    z-index: -1;
    border-bottom: 2px dashed #545353;
}
.item{
    width: 250px;
}
.top-text{
    text-align: center;
    min-height: 52px;
}
.bottom-text{
    text-align: center;
    min-height: 52px;
}
.year{
    margin: 5px auto;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    background-color: #e53232;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
}

.proTop p{
    font-size: 18px;
    font-weight: bold;
}