.article7 {
    position: relative;
    background: url(../images/a7-bg.jpg);
    overflow: hidden;
}

.a7-video {
    position: relative;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.a7-video video {
    width: 110%;
}

.a7-video-overlay {
    position: absolute;
    top: -1px; left: -1px;
    width: 105%;
    height: 105%;
    background-color: rgba(0, 0, 0, .4);
    z-index: 2;
}

.a7-title {
    margin-bottom: 5rem;
    z-index: 10;
}

.a7-box-wrapper {
    width: 100%;
    display: grid;
    grid-template-columns: auto auto auto auto;
    gap: 1.5rem;
    z-index: 10;
}

.a7-box {
    position: relative;
    width: 100%;
}

.a7-box img:first-child {
    width: 100%;
}

.a7-free {
    position: absolute;
    bottom: 10px; left: 22%;
    width: 170px;
    z-index: 20;
}



/*==================================================*/
@media (min-width: 2250px) {
    .article7 {
        height: 100vh;
    }
}


@media (max-width: 1750px) {
    .a7-video {
        display: none;
    }
}


@media (max-width: 1050px) {
    .a7-box-wrapper {
        width: 100%;
    }

    .a7-free {
        width: 62%;
    }
}


@media (max-width: 850px) {
    .a7-title {
        width: 75%;
    }
}


@media (max-width: 650px) {
    .a7-box-wrapper {
        grid-template-columns: auto auto;
        gap: 1rem;
    }
}


@media (max-width: 550px) {
    .a7-title {
        margin-bottom: 3rem;
    }
}