.article4 {
    position: relative;
    padding: 0;
    height: 90vh;
    background-color: #111;
    border: 15rem solid var(--main-color);
    border-top: none;
    border-bottom: none;
}

.a4-image {
    position: absolute;
    top: 50%;
    width: 55%;
}

.article4 .article-wrapper {
    width: 100% !important;
}

.a4-title {
    position: absolute;
    top: 120rem;
    width: fit-content;
    text-align: center;
}

.a4-title p {
    color: #fff;
}

.a4-title h5 span {
    font-size: 90rem;
}

.a4-title h6 {
    margin-top: 15rem;
}

.a4-box-wrapper {
    width: 100%;
    height: 90vh;
    display: flex;
}

.a4-box {
    width: 50%;
    padding: 300rem 200rem;
    padding-bottom: 0;
    display: flex;
    flex-direction: column;
    transition: all .6s ease;
    overflow: hidden;
}

.a4-box-text {
    text-align: center;
}

.a4-box-text p {
    color: #fff;
    font-size: 30rem;
    font-family: 'Nanum Myeongjo';
    margin-bottom: 20rem;
}

.a4-box-text h5 {
    color: rgba(255, 255, 255, .2);
    font-size: 70rem;
    font-family: 'Danjo-bold-Regular';
    -webkit-text-stroke: 1px #fff;
    transition: all .6s ease;
}

.a4-left {
    align-items: flex-start;
    background: #333;
    background: url(../images/a4-left.jpg) no-repeat;
    background-size: 100%;
}

.a4-right {
    align-items: flex-end;
    background: #444;
    background: url(../images/a4-right.jpg) no-repeat;
    background-position: right;
    background-size: 100%;
}

.a4-box:hover {
    padding: 300rem 250rem;
    background-size: 105%;
}

.a4-box:hover h5 {
    color: #fff;
}


/*==================================================*/
@media (max-width: 1919px) and (min-height: 1100px) {
    .a4-left,
    .a4-right {
        background-size: cover;
    }

    .a4-box:hover {
        background-size: cover;
    }
}


@media (min-width: 2250px) {
    .a4-box-text p {
        font-size: 40rem;
    }

    .a4-box-text h5 {
        font-size: 90rem;
    }
}


@media (min-width: 1921px) {
    .a4-left,
    .a4-right {
        background-size: 110%;
    }

    .a4-box:hover {
        background-size: 115%;
    }
}


@media (max-width: 1919px) {
    .article4,
    .a4-box-wrapper {
        height: auto;
    }

    .a4-image {
        width: 75%;
    }

    .a4-box,
    .a4-box:hover {
        padding: 200rem;
    }

    .a4-box-text {
        margin-bottom: 70%;
    }
}


@media (max-width: 1450px) {
    .article4 .article-wrapper {
        padding: 0;
    }
}


@media (max-width: 1250px) {
    .a4-box,
    .a4-box:hover {
        padding: 200rem 120rem;
    }
}


@media (max-width: 768px) {
    .article4 {
        padding-top: 80rem;
    }

    .a4-left,
    .a4-right {
        border-top: 1px solid var(--main-color);
    }
    
    .a4-image {
        top: 47%;
    }
    
    .a4-title {
        position: static;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .a4-title h6 {
        width: 70%;
    }
    
    .a4-box-wrapper {
        flex-direction: column;
    }

    .a4-box {
        width: 100%;
        padding: 0;
        justify-content: center;
        align-items: center;
    }
    .a4-box:hover {
        padding: 0;
    }

    .a4-box:nth-child(1) .a4-box-text {
        margin: 100rem 0 300rem 0;
    }
    .a4-box:nth-child(2) .a4-box-text {
        margin: 300rem 0 100rem 0;
    }

    .a4-box-text h5 br {
        display: none;
    }
}