#sec1_parent {
    height: 100%;
    width: 100%;
    padding: 20px;
}

/* セクション１の見出し */
.sec1_heading {
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
}

.sec1_emphasisText {
    font-size: 60px;
    margin: 0 10px;
}

.sec1_div {
    font-size: 25px;
    font-weight: bold;
    text-align: center;
    position: relative;
    padding: 0;
    margin-inline: auto;
}

/* 吹き出し内テキストの位置調整 */
.sec1_text{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
}
.sec1_translate1{
    transform: translate(-50%, -75%);
}
.sec1_translate2{
    transform: translate(-50%, -100%);
}

/* 三角形 */
.sec1_triangle {
    background-color: #9FC1B2;
    height: calc(60px * tan(60deg) / 2);
    width: 200px;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    margin: 0 auto;
}

/* アニメーション */
.sec1_slideIn {
    overflow: hidden;
}

.sec1_slideInInner {
    display: inline-block;
}

.sec1_upAnime,
.sec1_upAnime2 {
    opacity: 0;
}

.sec1_slideAnimeDownUp {
    animation-name: slideTextY100;
    animation-duration: 1s;
    animation-fill-mode: forwards;
    opacity: 0;
}

.sec1_slideAnimeDownUp2 {
    animation-name: slideTextY100;
    animation-duration: 1.5s;
    animation-fill-mode: forwards;
    opacity: 0;
}

@keyframes slideTextY100 {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/*========= レイアウトのためのCSS ===============*/
/*========= PCサイズ ===============*/
@media screen and (min-width: 768px) {
    .sec1_row{
        justify-content: center;
    }
    .sec1_text{
        font-size: 1.8vw;
    }
    .sec1_margin1{
        margin-top: 3rem;
    }
    .sec1_margin2{
        margin-bottom: 3rem;
    }
    .sec1_heading {
        font-size: 30px;
    }
    .sec1_emphasisText {
        font-size: 50px;
    }
}
/*========= スマホサイズ ===============*/
@media screen and (max-width: 767.9px) {
    #sec1_parent{
        width: 90%;
    }
    .sec1_row{
        justify-content: space-around;
    }
    .sec1_sub_row{
        padding-left: 0;
        padding-right: 0;
    }
    .sec1_text{
        font-size: 3vw;
    }
    .sec1_margin1{
        margin-bottom: 3rem;
    }
    .sec1_margin2{
        margin-top: 3rem;
    }
    .sec1_heading {
        font-size: 4.5vw;
    }
    .sec1_emphasisText {
        font-size: 8vw;
        margin: 0 5px;
    }
}

@media screen and (max-width: 297px) {
    .sec1_heading {
        font-size: 13px;
    }

    .sec1_emphasisText {
        font-size: 25px;
    }
}