.text_animation {
    color: #fff;
    text-shadow: 2px 2px 4px #646464;
    overflow: hidden;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: 5vw;
    font-weight: 700;
    text-transform: uppercase;
    transform-origin: left;
    padding: 0 20px;
    display: block;
    line-height: 1.5;
    text-align: left;
}

.text_animation > .char {
    filter: blur(8px);
    opacity: 0;
    animation-delay: 5s;
}

.text_animation.is-active_animation > .char {
    animation: text_animation 1s cubic-bezier(0.77, 0, 0.175, 1);
    animation-fill-mode: forwards;
    animation-delay: calc(0.1s * var(--char-index));
    font-weight: 600;
    letter-spacing: -0.25em;
    text-align: left;
}

@keyframes text_animation {
    0% {
        filter: blur(8px);
        opacity: 0;
    }
    20% {
        filter: blur(6px);
        opacity: 1;
    }
    40% {
        filter: blur(4px);
        opacity: 1;
    }
    60% {
        filter: blur(2px);
        opacity: 1;
    }
    80% {
        filter: blur(1px);
        opacity: 1;
    }
    100% {
        filter: blur(0); /* 最後はぼかしをなくして、表示状態にする */
        opacity: 1;      /* 最後は不透明にして、文字を表示し続ける */
    }
}

/* 初期CSS */
.mv_animation {
    overflow: hidden;
    width: 100%;
    /* height: 100vh; */
    display: flex;
    justify-content: flex-end;
    align-items: center;
    /* background-color: #3c3c3c; */
    position: absolute;
    bottom: 15%;
}

.visuallyHidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

@media only screen and (max-width: 767px) {
    .mv_animation {
        bottom: 10%;
    }
    .text_animation {
        font-size: 7vw;
    }
}