/* -----------case-----------*/
.case_content {
    padding: 100px 20px;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(30px, calc((100vw / 1440) * 70), 70px);
}

.case_content_sidebar {
    width: 20%;
    max-width: 234px;
    min-width: 210px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: sticky;
    top: 100px;
    padding: 100px 0 0;
}
.case_content_sidebar.pc {
    max-height: 100vh;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.case_content_sidebar.pc::-webkit-scrollbar {
    display: none;
}
.case_content_sidebar.sp {
    display: none;
}
.case_content_sidebar_item {
    display: flex;
    flex-direction: column;
}
.case_content_sidebar_item_label {
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 0.05em;
    padding: 10px 20px;
    color: #fff;
    background: var(--accent-orange);
    border-radius: 3px;
    position: relative;
}
.case_content_sidebar_item:nth-of-type(2) .case_content_sidebar_item_label {
    background: var(--accent-green);
}
.case_content_sidebar_item:nth-of-type(3) .case_content_sidebar_item_label {
    background: var(--accent-yellow);
}
.case_content_sidebar_item_list {
    height: 0px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0 0 0 30px;
    margin-top: 10px;
    transition: all 0.3s ease;
}
.case_content_sidebar_item_list_text {
    font-size: 16px;
    font-weight: bold;
    color: var(--accent-orange);
    padding: 10px 20px;
}
.case_content_sidebar_item:nth-of-type(2) .case_content_sidebar_item_list_text {
    color: var(--accent-green);
}
.case_content_sidebar_item:nth-of-type(3) .case_content_sidebar_item_list_text {
    color: var(--accent-yellow);
}

.case_content_sidebar_item_label::after {
    content: "";
    display: block;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    width: 13px;
    height: 5px;
    background: url(../img/category_toggle.svg)no-repeat center center;
}

.case_content_main {
    width: calc(100% - 234px);
    max-width: 1012px;
}

@media screen and (max-width: 1200px) {
    .case_content_main {
        max-width: 620px;
    }
    .case_content_sidebar_item_list {
        padding: 0 0 0 10px;
    }
    .case_content .lower_case_container {
        width: fit-content;
        max-width: 620px;
        padding: 0;
    }
    .case_content .lower_case_item {
        max-width: 300px;
        flex-direction: column;
    }
    .case_content .lower_case_item_image {
        width: 100%;
    }
}

@media screen and (max-width: 767px) {
    .case_content {
        flex-direction: column;
        gap: 30px;
        padding: 70px 30px;
    }
    .case_content_sidebar.pc {
        display: none;
    }
    .case_content_sidebar.sp {
        display: flex;
        width: 100%;
        margin: 0 auto;
        padding: 0;
        position: relative;
        top: unset;
        margin-bottom: 20px;
    }
    .case_page .lower_case_container {
        flex-direction: row;
        justify-content: center;
        margin: 0 auto;
    }
    .case_content_main {
        width: 100%;
        max-width: unset;
    }
}