.banner-box {
    position: relative;
}

.banner-box .banner-img {
    width: 100%;
}

.banner-title {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    line-height: 1;
    font-size: 46px;
    letter-spacing: 7px;
    white-space: nowrap;
    color: #fff;
}

.banner-title2 {
    position: absolute;
    top: 9.48vw;
    left: 18.59vw;
    font-size: 46px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #333;
    line-height: 30px;
}

.banner-explain2 {
    position: absolute;
    top: 13.07vw;
    left: 18.59vw;
    font-family: SourceHanSansCN-Regular;
    font-size: 26px;
    color: #333;
}

.banner-title3 {
    position: absolute;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    top: 50%;
    left: 50%;
    height: 90px;
    transform: translate(-50%, -50%);
    color: #fff;
    line-height: 1;
    text-align: center;
}

.banner-title3-main {
    font-size: 42px;
    font-weight: 500;
    letter-spacing: 2px;
}

.banner-title3-explain {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: 2px;
}