.article1 {
    position: relative;
    height: 100vh;
    background-color: #ffffff;
    overflow: hidden;
}
.article1::before {
    content: '';
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    background-image:
            linear-gradient(rgba(180, 190, 210, 0.15) 1px, transparent 1px),
            linear-gradient(90deg, rgba(180, 190, 210, 0.15) 1px, transparent 1px);
        background-size: 20px 20px;
    z-index: 2;
}
.article1::after {
    content: '';
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 70%;
    background-image: linear-gradient(to top, #fff, transparent);
    z-index: 3;
}

.a1-scene {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
}

.a1-left-text {
    position: absolute;
    left: 0;
    width: 40%;
    z-index: 3;
}

.a1-left-text p {
    color: #333;
    font-size: 32rem;
    font-weight: 600;
    line-height: 1.7;
    letter-spacing: -0.5rem;
}
.a1-left-text p span {
    color: var(--blue-color);
    font-weight: 700;
    letter-spacing: -0.5rem;
}
.a1-left-text p em {
    color: var(--main-color);
    font-style: normal;
    font-weight: 700;
    letter-spacing: -0.5rem;
}

.a1-orbit-group {
    position: relative;
    width: 0;
    height: 0;
}

.a1-center-box {
    position: relative;
    position: absolute;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    background-color: var(--main-color);
    box-shadow: 0 0 150px var(--main-color);
    transform: translate(-50%, -50%);
    z-index: 2;
}
.a1-center-box::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(2.3);
    width: 240px;
    min-width: 240px;
    height: 240px;
    min-height: 240px;
    border-radius: 50%;
    border: 1px solid var(--main-color);
    opacity: .12;
    z-index: 1;
}

.a1-orbit-box {
    position: absolute;
    width: 180px;
    height: 55px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 19px;
    font-weight: 600;
    color: #1a5276;
    opacity: 0;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.a1-orbit-box img {
    height: 24px;
    object-fit: cover;
    mix-blend-mode: multiply;
}


/*==================================================*/
@media (max-width: 1024px) {
    .article1 {
        height: auto;
        padding-bottom: 500rem;
    }

    .a1-left-text {
        position: static;
        width: 100%;
        text-align: center;
        margin-top: 50rem;
        margin-bottom: 450rem;
        opacity: 1;
    }

    .a1-scene {
        flex-direction: column;
    }
}


@media (max-width: 768px) {
    .a1-center-box {
        width: 300rem;
        height: 300rem;
        font-size: 36rem;
        font-weight: 600;
    }

    .a1-center-box::before {
        width: 280rem;
        min-width: 280rem;
        height: 280rem;
        min-height: 280rem;
    }

    .a1-orbit-box img {
        height: 30rem;
    }
}


@media (max-width: 450px) {
    .a1-left-text p {
        font-size: 40rem;
    }
}