/* 工程案例页：沿用模板深蓝品牌色，并参考大图网格的展示方式。 */
.case-page
{
    --case-primary: #171c61;
    --case-primary-hover: #242b82;
    --case-accent: #a60b13;
    --case-ink: #24263a;
    --case-muted: #777b89;
    --case-line: #e4e7ef;
    --case-surface: #f3f7fc;

    padding: 72px 0 88px;
    background-color: var(--case-surface);
}

.case-grid
{
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
}

.case-card
{
    min-width: 0;
}

.case-card > a
{
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: 10px;
    background-color: #dfe5ee;
    box-shadow: 0 12px 28px rgba(23, 28, 97, .08);
    -webkit-transition: box-shadow .35s ease, -webkit-transform .35s ease;
            transition: box-shadow .35s ease, -webkit-transform .35s ease;
            transition: transform .35s ease, box-shadow .35s ease;
}

.case-card-image
{
    position: relative;
    display: block;
    overflow: hidden;
    height: 0;
    padding-bottom: 61.54%;
}

.case-card-image img
{
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    -webkit-transition: -webkit-transform .7s cubic-bezier(.16, 1, .3, 1);
            transition: -webkit-transform .7s cubic-bezier(.16, 1, .3, 1);
            transition: transform .7s cubic-bezier(.16, 1, .3, 1);
}

.case-card-shade
{
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 46%;
    pointer-events: none;
    background: linear-gradient(to top, rgba(9, 15, 42, .75), rgba(9, 15, 42, 0));
}

.case-card h2
{
    font-size: 20px;
    font-weight: 600;
    line-height: 1.45;
    position: absolute;
    right: 24px;
    bottom: 22px;
    left: 24px;
    overflow: hidden;
    margin: 0;
    text-align: center;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, .35);
}

.case-card > a:hover,
.case-card > a:focus
{
    -webkit-transform: translateY(-5px);
        -ms-transform: translateY(-5px);
            transform: translateY(-5px);
    box-shadow: 0 20px 38px rgba(23, 28, 97, .16);
}

.case-card > a:hover img,
.case-card > a:focus img
{
    -webkit-transform: scale(1.045);
        -ms-transform: scale(1.045);
            transform: scale(1.045);
}

.case-card > a:focus-visible,
.case-related a:focus-visible,
.case-pagination a:focus-visible
{
    outline: 3px solid rgba(23, 28, 97, .3) !important;
    outline-offset: 3px !important;
}

.case-pagination.page
{
    margin-top: 62px;
}

.case-pagination.page a
{
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    font-size: 16px;
    line-height: 46px;
    min-width: 46px;
    height: 46px;
    margin: 0 4px;
    padding: 0 12px;
    color: #606471;
    border-radius: 3px;
    background-color: #fff;
    -webkit-transition: color .25s ease, background-color .25s ease, -webkit-transform .25s ease;
            transition: color .25s ease, background-color .25s ease, -webkit-transform .25s ease;
            transition: color .25s ease, background-color .25s ease, transform .25s ease;
}

.case-pagination.page a.page-num-current,
.case-pagination.page a:hover,
.case-pagination.page a:focus
{
    color: #fff;
    background-color: var(--case-primary);
}

.case-pagination.page a:active
{
    -webkit-transform: translateY(1px);
        -ms-transform: translateY(1px);
            transform: translateY(1px);
}

.case-pagination.page .page-edge
{
    padding: 0 20px;
}

.case-empty
{
    padding: 88px 24px;
    text-align: center;
    border-radius: 10px;
    background-color: #fff;
}

.case-empty h2
{
    font-size: 24px;
    margin: 0;
    color: var(--case-ink);
}

.case-empty p
{
    font-size: 15px;
    margin: 14px 0 0;
    color: var(--case-muted);
}

/* 案例详情 */
.case-detail-page
{
    background-color: #fff;
}

.case-detail-header
{
    max-width: 980px;
    margin: 0 auto 42px;
    text-align: center;
}

.case-detail-kicker
{
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    margin: 0 0 18px;
    letter-spacing: .16em;
    color: var(--case-primary);
}

.case-detail-header h1
{
    font-size: 36px;
    font-weight: 600;
    line-height: 1.35;
    margin: 0;
    color: var(--case-ink);
}

.case-detail-meta
{
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 26px;
    margin-top: 20px;
    color: var(--case-muted);
}

.case-detail-meta a
{
    position: relative;
    color: var(--case-primary);
}

.case-detail-meta a:before
{
    position: absolute;
    top: 50%;
    left: -14px;
    width: 1px;
    height: 14px;
    content: '';
    -webkit-transform: translateY(-50%);
        -ms-transform: translateY(-50%);
            transform: translateY(-50%);
    background-color: var(--case-line);
}

.case-cover
{
    overflow: hidden;
    margin: 0 0 50px;
    border-radius: 10px;
    background-color: #eef1f6;
}

.case-cover img
{
    display: block;
    width: 100%;
    height: auto;
    max-height: 760px;
    object-fit: cover;
}

.case-content
{
    font-size: 16px;
    line-height: 2;
    max-width: 980px;
    margin: 0 auto;
    color: #4b4f5c;
}

.case-content h2,
.case-content h3,
.case-content h4
{
    line-height: 1.5;
    margin: 38px 0 16px;
    color: var(--case-ink);
}

.case-content h2
{
    font-size: 26px;
}

.case-content h3
{
    font-size: 22px;
}

.case-content p
{
    margin: 0 0 20px;
}

.case-content img
{
    display: block;
    max-width: 100%;
    height: auto !important;
    margin: 32px auto;
    border-radius: 10px;
}

.case-gallery
{
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.case-gallery figure
{
    overflow: hidden;
    margin: 0;
    border-radius: 10px;
    background-color: #eef1f6;
}

.case-gallery a
{
    display: block;
}

.case-gallery img
{
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    -webkit-transition: -webkit-transform .6s cubic-bezier(.16, 1, .3, 1);
            transition: -webkit-transform .6s cubic-bezier(.16, 1, .3, 1);
            transition: transform .6s cubic-bezier(.16, 1, .3, 1);
}

.case-gallery a:hover img
{
    -webkit-transform: scale(1.035);
        -ms-transform: scale(1.035);
            transform: scale(1.035);
}

.case-related
{
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 30px;
    margin-top: 70px;
    padding-top: 30px;
    border-top: 1px solid var(--case-line);
}

.case-related-item
{
    min-width: 0;
}

.case-related-item span
{
    font-size: 13px;
    display: block;
    margin-bottom: 8px;
    color: var(--case-muted);
}

.case-related-item a
{
    font-size: 16px;
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: var(--case-ink);
}

.case-related-item a:hover
{
    color: var(--case-primary);
}

.case-related-next
{
    text-align: right;
}

.case-related-back
{
    line-height: 42px;
    display: inline-block;
    min-width: 112px;
    height: 42px;
    padding: 0 22px;
    text-align: center;
    white-space: nowrap;
    color: #fff !important;
    border-radius: 3px;
    background-color: var(--case-primary);
    -webkit-transition: background-color .25s ease, -webkit-transform .25s ease;
            transition: background-color .25s ease, -webkit-transform .25s ease;
            transition: background-color .25s ease, transform .25s ease;
}

.case-related-back:hover,
.case-related-back:focus
{
    background-color: var(--case-primary-hover);
}

.case-related-back:active
{
    -webkit-transform: translateY(1px);
        -ms-transform: translateY(1px);
            transform: translateY(1px);
}

@media (max-width: 1199px)
{
    .case-page
    {
        padding: 58px 0 72px;
    }

    .case-grid
    {
        gap: 22px;
    }

    .case-card h2
    {
        font-size: 18px;
        right: 18px;
        bottom: 18px;
        left: 18px;
    }
}

@media (max-width: 991px)
{
    .case-grid
    {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .case-detail-header h1
    {
        font-size: 30px;
    }

    .case-cover
    {
        margin-bottom: 38px;
    }
}

@media (max-width: 767px)
{
    .case-page
    {
        padding: 38px 0 52px;
    }

    .case-grid
    {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .case-card h2
    {
        font-size: 17px;
    }

    .case-pagination.page
    {
        margin-top: 38px;
        white-space: nowrap;
    }

    .case-pagination.page a
    {
        font-size: 14px;
        line-height: 38px;
        min-width: 38px;
        height: 38px;
        margin: 3px 1px;
        padding: 0 8px;
    }

    .case-pagination.page .page-edge
    {
        padding: 0 10px;
    }

    .case-detail-header
    {
        margin-bottom: 28px;
    }

    .case-detail-kicker
    {
        margin-bottom: 14px;
    }

    .case-detail-header h1
    {
        font-size: 24px;
    }

    .case-detail-meta
    {
        font-size: 13px;
        gap: 20px;
        margin-top: 14px;
    }

    .case-cover
    {
        margin-bottom: 28px;
        border-radius: 8px;
    }

    .case-content
    {
        font-size: 15px;
        line-height: 1.85;
    }

    .case-content h2
    {
        font-size: 22px;
    }

    .case-content h3
    {
        font-size: 19px;
    }

    .case-gallery
    {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 34px;
    }

    .case-related
    {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        margin-top: 46px;
    }

    .case-related-back
    {
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce)
{
    .case-card > a,
    .case-card-image img,
    .case-gallery img,
    .case-pagination.page a,
    .case-related-back
    {
        -webkit-transition: none !important;
                transition: none !important;
        -webkit-transform: none !important;
            -ms-transform: none !important;
                transform: none !important;
    }
}