.page_nav {
    margin-bottom: 30px;
}
.page_bg {
    background-image: url('/images/case_bg.png');
}
.page_bg h2 {
    font-size: var(--ft20);
    color: var(--white);
    font-weight: var(--semi-bold);
    margin-bottom: 24px;
}
.page_bg p {
    font-size: var(--ft32);
    color: var(--white);
    font-weight: var(--semi-bold);
}
.con_box {
    width: 100%;
    max-width: var(--container-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.con_box .icon {
    width: 200px;
    height: 200px;
}
.case_list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}



@media all and (max-width: 1400px) {
    .con_box .icon {
        width: 160px;
        height: 160px;
    }
    .case_list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media all and (max-width: 1024px) {
    .page_bg {
        height: auto;
    }
    .page_bg h2 {
        margin-bottom: 12px;
    }
    .con_box .icon {
        width: 120px;
        height: 120px;
    }
}

@media all and (max-width: 768px) {
    .page_bg {
        padding: 28px 20px;
    }
    .page_bg h2 {
        margin-bottom: 8px;
        font-size: var(--ft16);
    }
    .page_bg p {
        font-size: var(--ft20);
    }
    .con_box .icon {
        width: 50px;
        height: 50px;
    }

    .case_list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media all and (max-width: 400px) {
    .case_list {
        grid-template-columns: repeat(1, 1fr);
    }
}