.case-studies .fv-second {
    background-image: url('../../assets/second/case/case-fv.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.case-studies-section {
    padding-bottom: 5.75rem;
}

.case {
    background-color: #EFF2F4;
}

/* Case Studies Page Styles */

/* Section Title */
#case .section-title {
    text-align: center;
    margin: 60px 0 40px;
    position: relative;
}

.title-text {
    font-size: var(--font-size-ttl-ja);
    font-weight: bold;
    color: var(--color-navy);
}

.title-underline {
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-navy);
    margin: 16px auto 0;
}

.filter-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.88rem;
    margin-bottom: 48px;
    background: linear-gradient(0deg, #19334C -23.46%, #1F415F 9.66%, #2B5375 41.31%, #395F80 75.9%, #7191AC 123.74%);
    padding: 2rem 4.38rem;
    margin-top: 3.12rem;
}

.filter-tab {
    padding: 1.25rem 1rem;
    min-width: 200px;
    position: relative;
    color: var(--color-white);
    text-align: center;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 1.2rem;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
    letter-spacing: -0.01375rem;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}
.filter-tab:first-child {
    font-family: var(--font-family-en);
}

.filter-tab.active {
    background-color: var(--color-white);
    color: var(--color-navy);
}
@media (hover: hover) and (pointer: fine) {
.filter-tab:hover {
    background-color: var(--color-white);
    color: var(--color-navy);
}
}
.filter-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    opacity: 0.2;
}
@media screen and (min-width: 1920px) {
    .filter-tabs {
        padding: 2.8rem 9.38rem;
    }
    .filter-tab {
        padding: 2rem 4rem;
    }
}
@media screen and (max-width: 1500px) {
    .filter-tabs {
        padding: 2rem 7rem;
    }
    .filter-tab {
        padding: 1.3rem 1.56rem;
        font-size: 0.8rem;
    }
}
@media (max-width: 1200px) {
    .filter-tabs {
        grid-template-columns: repeat(2, 1fr);
        padding: 1.25em 3rem;
        gap: 1rem;

    }
    .filter-tab {
        padding: 1rem 2rem;
        height: 3.5rem;
    }
}
@media screen and (max-width: 768px) {
    .filter-tabs {
        grid-template-columns: repeat(1, 1fr);
        padding: 1.25rem 2rem;
        gap: 1rem;
    }
    .filter-tab {
        font-size: 1.125rem;
    }
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5.3rem;
}
.section-heading {
    color: var(--color-navy);
    font-family: var(--font-family-en);
    font-size: 1.875rem;
    font-weight: 600;
    line-height: normal;
    letter-spacing: -0.02188rem;
}
.case-count {
    color: var(--color-navy);
    font-family: var(--font-family-en);
    font-size: 1.875rem;
    font-weight: 600;
    line-height: 1.875rem;
    letter-spacing: 0.0625rem;
    margin-right: 3rem;
}
.count-unit {
    font-size: 1.375rem;
    font-weight: 600;
    line-height: normal;
    letter-spacing: -0.01375rem;
    line-height: 1.875rem;
    letter-spacing: 0.0625rem;
}
.case-devider {
    width: 100%;
    height: 0.25rem;
    margin-top: 1.875rem;
    position: relative;
    background: rgba(184, 188, 198, 0.3);
}

.case-devider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1.25rem;
    height: 100%;
    background: linear-gradient(90deg, var(--color-navy) 0%, var(--color-lightblue) 100%);
    z-index: 1;
}
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 3.75rem;
    row-gap: 7rem;
    margin-top: 5.44rem;
    padding: 0 2rem;
    align-items: stretch;
}

.case-studies-grid a {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.3s ease;
    width: 100%;
    height: 100%;
}

.case-study-card {
    background-color: var(--color-white);
    width: 100%;
    height: 100%;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
    overflow: hidden;
}
.case-study-card-inner {
    display: block;
    width: 100%;
    height: 100%;
}

.card-image {
    display: block;
    width: 100%;
    height: 19rem;
    object-fit: cover;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    object-position: top;

}

@media (hover: hover) and (pointer: fine) {
.case-study-card:hover .card-image img {
    transform: scale(1.05);
}
}
.card-content {
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem 2rem;
}
.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.875rem;
    letter-spacing: 0.0625rem;
    color: var(--color-black-navy);
}
#case .company-name {
    color: #5D6970;
    font-size: var(--font-size-tag-text);
    font-weight: 500;
    line-height: 1.35rem;
    text-align: left;
    margin-top: 1rem;
}
.card-tags {
    display: inline-flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 2.3rem;
    gap: 0.5rem;
    align-items: flex-start;/* 左揃え */
}
@media screen and (min-width: 1920px)  {
    .card-tags {
        gap: 0.67rem;
    }
    .card-content {
        padding: 2.75rem 2rem 2.5rem;
    }
}
@media (max-width: 1500px) {
    .case-studies-grid {
        grid-template-columns: repeat(3, 1fr);
        column-gap: 3rem;
        row-gap: 4.5rem;
        align-items: stretch;
    }
    .case-devider {
        margin-top: 1.5rem;
    }
    .card-image {
        height: 15rem;
    }
    .card-content {
        padding: 1.5rem 1.5rem 1.5rem;
    }
    .card-tags {
        margin-top: 1.5rem;
    }
    #case .company-name {
        margin-top: 0.45rem;
    }
    .card-title {
        font-size: 1.125rem;
        line-height: 1.5rem;
        letter-spacing: 0.0625rem;
    }
    .case-study-card {
        height: 100%;
    }

}
@media (max-width: 1200px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0;
        row-gap: 3rem; 
        column-gap: 2rem;
    }

    .case-study-card {
        height: 100%;
    }
    
    .card-image {
        height: 12rem;
    }
    
    .card-image img {
        width: 100%;
        height: 15rem;
    }
    .card-content {
        padding: 1.25rem 1.5rem 1.25rem;
    }
    .card-title {
        font-size: 1rem;
        line-height: 1.35rem;
    }
    #case .company-name {
        font-size: 0.875rem;
        line-height: 1.35rem;
        margin-top: 0.3rem;
    }
    .card-tags {
        margin-top: 1rem;
    }
    
    /* タブレット用ページネーション調整 */
    .pagination .c-link__circle {
        width: 3rem;
        height: 3rem;
    }
    
    .pagination-numbers {
        margin: 0 1rem;
    }
    
    .pagination-num {
        width: 2.5rem;
        font-size: 1rem;
    }
    @media (hover: hover) and (pointer: fine) {
    .pagination-num.active, 
    .pagination-num:hover {
        font-size: 1.3rem;
        font-weight: 600;
    }
    }
}

@media (max-width: 768px) {
    .case-studies-grid {
        grid-template-columns: repeat(1, 1fr);
        padding: 0;
        margin-top: 3.13rem;
    }
    .card-tags {
        margin-top: 1.25rem;
    }
    .card-content {
        padding: 1.4rem 1.5rem 1.8rem;
    }
    .section-heading {
        font-size: 1.6875rem;
        line-height: 2.25rem;
    }
    .case-count {
        font-size: 1.1875rem;
        margin-right: 0;
        flex-shrink: 0;
    }
    .count-unit {
        font-size: 1rem;
        line-height: 1.5rem;
    }
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 6.25rem;
}

.pagination .c-link {
    margin: 0;
}

.pagination .c-link__circle {
    width: 3.5rem;
    height: 3.5rem;
}

.pagination .c-link.disabled {
    pointer-events: none;
    cursor: not-allowed;
}

.pagination .c-link.disabled .c-link__circle {
    background: rgba(0, 84, 125, 0.05);
}

.pagination .c-link.disabled .c-link__circle::before {
    border-color: transparent;
}

.pagination .c-link.disabled .arrow--blue {
    color: #B7BCC6;
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
    margin: 0 1rem;
}

.pagination-num {
    width: 3rem;
    font-size: 1rem;
    line-height: 2.25rem;
}

.pagination-num::after {
    height: 4px;
}


.pagination-num {
    display: inline-flex;
    align-items: center;
    position: relative;
    justify-content: center;
    width: 3.5rem;
    height: 100%;
    color: var(--color-subtitle);
    font-family: var(--font-family-en);
    font-size: 1.1rem;
    transition: all var(--transition-fast);
    font-weight: 500;
    line-height: 2.5rem;
    letter-spacing: 0.0625rem;
}
@media (hover: hover) and (pointer: fine) {
 .pagination-num:hover {
    color: var(--color-navy);
    font-size: 1.5rem;
    font-weight: 600;
}
}

.pagination-num.active {
    color: var(--color-navy);
    font-size: 1.5rem;
    font-weight: 600;
}

.pagination-num.active {
    font-weight: 600;
}
.pagination-num::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    right: 50%;
    height: 5px;
    background: linear-gradient(90deg, #00547D 0%, #0297E0 100%);
    transition: all var(--transition-medium) ease-in-out;
}

.pagination-num.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    right: 50%;
    height: 5px;
    margin: 0 auto;
    background: linear-gradient(90deg, #00547D 0%, #0297E0 100%);
    transition: all var(--transition-medium) ease-in-out;
}

@media (hover: hover) and (pointer: fine) {
.pagination-num:hover::after {
    left: 30%;
    right: 30%;
}
}
.pagination-num.active::after {
    left: 30%;
    right: 30%;
}
#case .pagination-link {
    color: inherit;
}

#case .description-container {
    margin-top: 0rem;
    display: block;
    width: 100%;
}

.pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-subtitle);
    font-family: var(--font-family-en);
    font-weight: bold;
    font-size: var(--font-size-text);
    line-height: 2.625rem;
    letter-spacing: 0.0625rem;
    padding: 0 0.5rem;
}

.pagination-num:nth-child(n+5) {
    display: none;
}
.pagination-num:last-child {
    display: inline-flex;
}
@media (hover: hover) and (pointer: fine) {
.pagination .c-link:hover .c-link__circle::after {
    background-color: #00547D;
}
}
.pagination .c-link .c-link__circle::before {
    border-color: #00547D;
}
.pagination .c-link .arrow--blue {
    color: #00547D;
}

@media (hover: hover) and (pointer: fine) {
.pagination .c-link:hover .arrow--white {
    color: #fff;
}
}
.pagination .c-link .c-link__circle::after {
    background-color: #00547D;
}
@media screen and (min-width: 1920px) {
    .pagination .c-link__circle {
        width: 4.25rem;
        height: 4.25rem;
    }

    .pagination-numbers {
        margin: 0 1.5rem;
    }
    .pagination-num {
        font-size: 1.2rem;
    }
    @media (hover: hover) and (pointer: fine) {
    .pagination-num.active, .pagination-num:hover {
        font-size: 1.8rem;
    }
}
}
@media screen and (max-width: 1200px) {
#case .case-studies .content-wrapper {
    padding: 0 7rem;
}
}
@media screen and (max-width: 768px)  {
#case .case-studies .content-wrapper {
    padding: 0 2rem;
}

#case .description-container {
    align-items: normal;
}
    
    /* スマホ版ページネーション調整 */
    .pagination .c-link__circle {
        width: 2.8rem;
        height: 2.8rem;
    }
    .pagination-num {
        width: 2.8rem;
    }

    .pagination .c-link.next {
        margin-right: 0.7rem;
    }

    .pagination {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-top: 4rem;
    }
}