@charset "utf-8";
#about__area{
    width: 100%;
    height: auto;
}
    .about__inner{
        width: 90%;
        height: auto;
        margin: 0 auto;
        max-width: 1200px;
        padding-top: 100px;
        padding-bottom: 100px;
    }
        .about__contents{
            width: 100%;
            height: auto;
            position: relative;
            margin-top: 20px;
        }
            .about__image{
                width: 100%;
                height: auto;
                border-radius: 10px;
                overflow: hidden;
            }
                .about__image img{
                    width: 100%;
                    height: auto;
                }
                .about__image::before{
                    content: "";
                    display: block;
                    width: 100%;
                    height: 100%;
                    background-color: var(--color--gray);
                    mix-blend-mode: multiply;
                    position: absolute;
                    top: 0;
                    left: 0;
                    border-radius: 10px;
                }
            .about__text{
                width: fit-content;
                height: auto;
                font-size: 16px;
                white-space: nowrap;
                font-weight: 600;
                letter-spacing: 0.08em;
                line-height: 2;
                color: var(--color--white);
                position: absolute;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
                mask-image: url(../image/effect_mask.webp);
                mask-position: 100% 0;
                mask-size: cover;
                animation: effect_mask 3000ms steps(11) forwards 0.5s;
            }
            @-webkit-keyframes effect_mask {
                0% {
                    -webkit-mask-position: 100% 0;
                    mask-position: 100% 0
                }
                20%{
                    -webkit-mask-position: 80% 50%;
                    mask-position: 80% 50%
                }
                40%{
                    -webkit-mask-position: 60% 0%;
                    mask-position: 60% 0%
                }
                60%{
                    -webkit-mask-position: 40% -50%;
                    mask-position: 40% -50%
                }
                80%{
                    -webkit-mask-position: 20% 0%;
                    mask-position: 20% 0%
                }
                100% {
                    -webkit-mask-position: 0 0;
                    mask-position: 0 0
                }
            }
            @keyframes effect_mask {
                0% {
                    -webkit-mask-position: 100% 0;
                    mask-position: 100% 0
                }
                100% {
                    -webkit-mask-position: 0 0;
                    mask-position: 0 0
                }
            }
/* Tablet ================================================== */
@media all and (max-width:820px){
.about__inner{
    padding-top: 0;
    padding-bottom: 60px;
}
    .about__inner h1{
        font-size: 28px;
        padding-top: 50px;
    }
    .about__contents{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
        .about__text{
            width: 100%;
            display: block;
            white-space: unset;
            color: var(--color--gray);
            position: unset;
            transform: unset;
            font-size: 12px;
            padding-top: 30px;
        }
        .about__image::before{
            background-color: unset;
        }
}