.article4 {
    position: relative;
    height: 1000px;
    background-color: #313131;
}

.a4-image {
    position: absolute;
    top: -300px; right: 0;
}

.a4-wrapper {
    width: 100%;
}

.a4-title {
    display: flex;
    align-items: center;
    gap: 20px;
}

.a4-title h1 {
    color: #fff;
    font-size: 45px;
}

.a4-title h1 span {
    font-size: 40px;
    font-weight: 500;
}

.a4-info {
    color: #fff;
    font-size: 40px;
    line-height: 1.6;
    margin-top: 3rem;
}

.a4-info span {
    font-weight: 700;
    background: linear-gradient(to top, #1d1717 60%, transparent 50%);
}

.a4-bottom {
    color: #84684f;
    font-size: 20px;
    margin-top: 20rem;
}

.a4-bottom p a {
    font-weight: 700;
    text-decoration: underline;
}


/*==================================================*/
@media (max-width: 1650px) {
    .article4 {
        height: auto;
    }

    .a4-wrapper {
        display: flex;
        flex-direction: column;
        gap: 3rem;
    }
    
    .a4-image {
        position: static;
    }

    .a4-bottom {
        margin-top: 3rem;
    }
}


@media (max-width: 850px) {
    .a4-title h1 {
        font-size: 35px;
    }
    
    .a4-title h1 span {
        font-size: 30px;
    }
    
    .a4-info {
        color: #fff;
        font-size: 30px;
    }

    .a4-info br {
        display: none;
    }

    .a4-bottom {
        font-size: 18px;
        line-height: 1.5;
    }
}


@media (max-width: 500px) {
    .a4-wrapper {
        gap: 2rem;
    }
    
    .a4-title h1 {
        font-size: 28px;
    }

    .a4-title h1 span {
        font-size: 22px;
    }

    .a4-info {
        font-size: 20px;
        margin-top: 1rem;
    }

    .a4-bottom {
        font-size: 16px;
        margin-top: 2rem;
    }
}