.a1-img-box {
    background-image: url(../img/a1-1920.jpg);
    background-position: 50%;
    background-repeat: no-repeat;
    background-size: cover;
    height: 600px;
    overflow: hidden;
    padding-top: 100px;
}
@media (min-width: 360px) and (max-width: 767px) {
    .a1-img-box { background-image: url(../img/a1-767.jpg);}
}
.banner-a1 {
    background-color: hsla(0,0%,100%,.7);
    box-shadow: 2px 0 30px 40px hsla(0,0%,100%,.7);
    text-align: center;
    margin: 0 auto;
    padding: clamp(20px, 20px + 0.02564*(100vw - 360px), 90px);
    width: calc(340px + 0.4*(100vw - 360px));
}
.label-a1 {
    background-color: #dbe5d5;
    color: #5eac12;
    border-radius: 5px;
    display: inline-block;
    font-size: 16px;
    font-weight: 600;
    padding: 4px 15px 3px;
}
.banner-a1 h1 {
    color: #586167;
    font-size: calc(22.8px + 1vw);
    font-weight: 600;
    line-height: 1.5;
    margin: 20px 0;
}
.banner-a1 p {
    width: 85%;
    color: #586167;
    font-size: 16px;
    line-height: 1.7;
    margin: 0 auto 24px;
}