@charset "UTF-8"; /* bg_load */
.bg-load {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.bg-load canvas {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 1;
    left: 0;
    top: 0;
}

.step-scroll a {
    display: block;
    color: #FFF;
    border-bottom: 2px solid;
    position: relative;
    text-decoration: none;
    width: 94%;
    margin: 0 auto;
    z-index: 2;
}

.step-scroll h3 {
    padding: 0 0 0px;
    opacity: 1;
    /* 初期状態では表示 */
    font-size: 50px;
    margin: 0px 0 40px;
    display: block;
    position: relative;
    z-index: 2;
    text-shadow: 0 0 7px #000000;
}

.step-scroll h3 span {
    display: block;
    font-size: 120px;
    font-family: futura-pt, sans-serif;
    font-weight: 500;
    font-style: normal;
    line-height: 1;
}

.step-scroll .link-btn {
    position: absolute;
    right: 0;
    bottom: 16px;
    text-shadow: 0 0 5px #000;
}

.step-scroll .sphere {
    width: 40vw;
    height: 40vw;
    max-width: 540px;
    max-height: 540px;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    z-index: 1;
    border-radius: 50%;
    opacity: 0;
    /* background-image: url('../img/your-image.jpg'); */
    background-size: cover;
    background-position: center;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
    animation: rotateSphere 30s ease-in-out infinite;
}

.step-scroll {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    /* 画面全体 */
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    width: 100%;
    position: relative;
    /* 背景の画像が重なるようにする */
    /* opacity: 0; */
    /* background: #808080; */
    text-transform: uppercase;
    z-index: 1;
    transition: opacity 1s ease-in-out;
}

.step-scroll .text {
    opacity: 1;
    /* 初期状態では表示 */
    font-size: 60px;
    margin: 10px 0;
    display: block;
    position: relative;
    font-weight: 400;
    font-family: futura-pt, sans-serif;
    z-index: 2;
    text-shadow: 0 0 7px #000000;
}

.step-scroll .sphere {
    position: absolute;
    z-index: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 1;
}

@keyframes rotateSphere {
    0% {
        background-position: 0% center;
    }

    50% {
        background-position: 100% center;
    }

    100% {
        background-position: 0% center;
    }
}

@media screen and (max-width: 768px) {
    .step-scroll .text {
        font-size: 40px;
        margin: 0px 0 10px;
        letter-spacing: -0.1rem;
    }

    .step-scroll .link-btn {
        position: relative;
        bottom: 0;
        font-size: 16px;
    }

    .step-scroll h3 {
        padding: 0;
        margin: 0 0 20px;
        line-height: 1;
        font-size: 30px;
    }

    .step-scroll .sphere {
        width: 90vw;
        height: 90vw;
    }
}