#qa_title_box {
    position: relative;
    background-image: url(img/A1.webp);
    width: 100%;
    height: calc(100vh - 70px);
    background-size: cover;
    background-position: center 70%;
    background-repeat:  no-repeat;
}

#qa_title_box::before {
    content: '';
    /* ↓暗いオーバーレイを半透明で配置 */
    background-color: var(--qa-shd);
    /* ↓全体を覆うように配置 */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#qa_title_inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: bold;
    width: 100%;
    text-align: center;
}

#qa_title_inner * {
    color: var(--text-on-fill);
}

#qa_title_inner p {
    font-size: min(24px, 100vw/24);
    margin-bottom: -8px;
}

#qa_title_inner h1 {
    font-size: min(85px, 100vw/8);
}

@media screen and (max-aspect-ratio: 1) {

    #qa_title_box {
        height: calc(70vh - 70px);
        background-position: 80% center;
    }
}