/* ==========================================================
   深圳市显科科技有限公司
   官网 V2.0
   Cases Page
========================================================== */


/* ==========================================================
   Hero
========================================================== */

.cases-hero{

    height: 488px;

    position: relative;

    display: flex;

    align-items: center;

    margin-top: 0;
    padding-top: 68px;

    background:
    linear-gradient(
        135deg,
        rgba(7,27,45,.25),
        rgba(26,58,92,.25)
    ),
    url("../../images/cases/banner.svg");

    background-size: cover;

    background-position: center;

}


.cases-hero__content{
    max-width:700px;

    text-align: left;

    color: #fff;

}


.cases-hero__content h1{

    font-size: clamp(36px, 3.5vw, 52px);

    font-weight: 700;

    margin-bottom: 18px;

}


.cases-hero__content p{

    font-size: 18px;

    line-height: 1.8;

    color: rgba(255,255,255,.85);

}


/* ==========================================================
   Filter Tabs
========================================================== */

.cases-filter{

    padding-top: 60px;

}


.cases-filter__tabs{

    display: flex;

    flex-wrap: wrap;

    gap: 12px;

    justify-content: center;

}


.cases-filter__tab{

    height: 46px;

    padding: 0 30px;

    border-radius: 999px;

    font-size: 17px;

    font-weight: 500;

    color: var(--text-secondary);

    background: #f4f6f8;

    cursor: pointer;

    transition: .3s;

    border: none;

    outline: none;

}


.cases-filter__tab:hover{

    background: rgba(26,58,92,.10);

    color: var(--primary);

}


.cases-filter__tab.is-active{

    background: var(--primary);

    color: #fff;

    font-weight: 600;

}


/* ==========================================================
   Case Grid
========================================================== */

.cases-list{

    padding-top: 50px;

    padding-bottom: 100px;

}


.cases__grid{

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 20px;

}


/* ==========================================================
   Case Card
========================================================== */

.case-card{

    position: relative;

    background: #fff;

    border-radius: 18px;

    overflow: hidden;

    box-shadow: var(--shadow-sm);

    transition: .35s ease;

    cursor: pointer;

}


.case-card:hover{

    transform: translateY(-10px);

    box-shadow: var(--shadow-lg);

}


.case-card__image{

    position: relative;

    height: 240px;

    overflow: hidden;

}


.case-card__image img{

    width: 100%;

    height: 100%;

    object-fit: cover;

    transition: transform .6s ease;

}


.case-card:hover .case-card__image img{

    transform: scale(1.10);

}


.case-card__image::after{

    content: "";

    position: absolute;

    inset: 0;

    background: linear-gradient(
        to top,
        rgba(0,0,0,.35),
        transparent 50%
    );

    z-index: 1;

}


.case-card__title{

    position: relative;

    z-index: 2;

    padding: 20px 22px;

    font-size: 17px;

    font-weight: 700;

    color: var(--text-primary);

    line-height: 1.5;

}


/* ==========================================================
   Hidden State (for filter)
========================================================== */

.case-card.is-hidden{

    display: none;

}


/* ==========================================================
   Pagination
========================================================== */

.cases-pagination{

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 8px;

    margin-top: 60px;

}


.cases-pagination__btn{

    height: 44px;

    padding: 0 22px;

    border-radius: 10px;

    background: #f4f6f8;

    color: var(--text-secondary);

    font-size: 15px;

    font-weight: 500;

    cursor: pointer;

    transition: .25s;

    border: none;

    outline: none;

}


.cases-pagination__btn:hover:not(.is-disabled){

    background: rgba(26,58,92,.10);

    color: var(--primary);

}


.cases-pagination__btn.is-disabled{

    opacity: .4;

    cursor: not-allowed;

}


.cases-pagination__num{

    width: 44px;

    height: 44px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 10px;

    font-size: 15px;

    font-weight: 500;

    color: var(--text-secondary);

    cursor: pointer;

    transition: .25s;

}


.cases-pagination__num:hover{

    background: rgba(26,58,92,.10);

    color: var(--primary);

}


.cases-pagination__num.is-active{

    background: var(--primary);

    color: #fff;

    font-weight: 600;

}


/* ==========================================================
   Responsive
========================================================== */

@media (max-width: 1200px){


    .cases__grid{

        grid-template-columns: repeat(3, 1fr);

    }


}


/* ==========================================================
   Lightbox
========================================================== */

.lightbox{

    display: none;

    position: fixed;

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: rgba(0,0,0,.92);

    z-index: 9999;

    align-items: center;

    justify-content: center;

    cursor: pointer;

}


.lightbox.is-open{

    display: flex;

    animation: lightboxFade .3s ease;

}


@keyframes lightboxFade{

    from { opacity: 0; }
    to   { opacity: 1; }

}


.lightbox__close{

    position: absolute;

    top: 24px;

    right: 32px;

    font-size: 42px;

    color: rgba(255,255,255,.7);

    cursor: pointer;

    z-index: 2;

    transition: .25s;

    line-height: 1;

}


.lightbox__close:hover{

    color: #fff;

    transform: scale(1.1);

}


.lightbox__image{

    max-width: 90vw;

    max-height: 85vh;

    object-fit: contain;

    border-radius: 8px;

    box-shadow: 0 20px 60px rgba(0,0,0,.5);

    cursor: default;

}


/* ==========================================================
   Region Case List
========================================================== */

.cases-region{

    padding-top: 100px;

    padding-bottom: 100px;

}


.region-grid{

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 24px;

}


/* ---- Region Group ---- */

.region-group{

    background: #fff;

    border-radius: 16px;

    overflow: hidden;

    box-shadow: var(--shadow-sm);

}


.region-group__header{

    padding: 18px 24px;

    font-size: 17px;

    font-weight: 700;

    color: #fff;

    background: linear-gradient(135deg, #1a3a5c, #2d6a9e);

    letter-spacing: 1px;

}


.region-group__body{

    padding: 6px 0;

}


/* ---- Region Item (Accordion) ---- */

.region-item{

    border-bottom: 1px solid #f2f4f7;

}


.region-item:last-child{

    border-bottom: none;

}


.region-item__name{

    display: flex;

    align-items: center;

    justify-content: space-between;

    padding: 13px 20px;

    font-size: 15px;

    font-weight: 600;

    color: var(--text-primary);

    cursor: pointer;

    list-style: none;

    transition: .25s;

}


.region-item__name::-webkit-details-marker{

    display: none;

}


.region-item__name:hover{

    color: var(--primary);

    background: #fafcfd;

}


.region-item__count{

    font-size: 12px;

    font-weight: 500;

    color: var(--primary);

    background: rgba(26,58,92,.08);

    padding: 3px 10px;

    border-radius: 999px;

}


/* ---- Case List ---- */

.region-item__list{

    padding: 6px 20px 16px 32px;

    list-style: none;

}


.region-item__list li{

    position: relative;

    padding: 5px 0 5px 16px;

    font-size: 13px;

    line-height: 1.7;

    color: var(--text-secondary);

}


.region-item__list li::before{

    content: "";

    position: absolute;

    left: 0;

    top: 12px;

    width: 5px;

    height: 5px;

    border-radius: 50%;

    background: #c0c7cf;

}


/* ---- Open State ---- */

.region-item[open] .region-item__name{

    color: var(--primary);

}


.region-item[open] .region-item__name .region-item__count{

    background: var(--primary);

    color: #fff;

}


.region-item[open] .region-item__list{

    animation: regionSlide .25s ease;

}


@keyframes regionSlide{

    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }

}


/* ==========================================================
   Responsive
========================================================== */

@media (max-width: 1200px){


    .region-grid{

        grid-template-columns: repeat(3, 1fr);

    }


}


@media (max-width: 768px){


    .cases-hero{

        height: 388px;

    }


    .cases-hero__content h1{

        font-size: 32px;

    }


    .cases-hero__content p{

        font-size: 15px;

    }


    .cases-filter__tabs{

        gap: 8px;

    }


    .cases-filter__tab{

        height: 36px;

        padding: 0 16px;

        font-size: 13px;

    }


    .cases-list{

        padding-top: 30px;

        padding-bottom: 60px;

    }


    .cases__grid{

        grid-template-columns: repeat(2, 1fr);

        gap: 20px;

    }


    .case-card__image{

        height: 200px;

    }


    .cases-region{

        padding-top: 60px;

        padding-bottom: 60px;

    }


    .region-grid{

        grid-template-columns: repeat(2, 1fr);

    }


}
/* ==========================================================
   Case Lightbox Gallery
========================================================== */

.case-lightbox{
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,.94);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.case-lightbox.is-open{
    display: flex;
    animation: lbFade .3s ease;
}

@keyframes lbFade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.case-lightbox__image{
    max-width: 85vw;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 8px 40px rgba(0,0,0,.5);
}

.case-lightbox__title{
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: left;
    padding: 0 40px;
}

.case-lightbox__counter{
    color: rgba(255,255,255,.6);
    font-size: 13px;
    margin-bottom: 10px;
}

.case-lightbox__close{
    position: absolute;
    top: 20px; right: 30px;
    font-size: 42px;
    color: rgba(255,255,255,.7);
    cursor: pointer;
    z-index: 2;
    line-height: 1;
    transition: .2s;
}

.case-lightbox__close:hover{ color: #fff; transform: scale(1.1); }

.case-lightbox__prev,
.case-lightbox__next{
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,.12);
    color: #fff;
    border: none;
    font-size: 48px;
    width: 60px;
    height: 80px;
    cursor: pointer;
    transition: .25s;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    z-index: 2;
}

.case-lightbox__prev{ left: 20px; }
.case-lightbox__next{ right: 20px; }

.case-lightbox__prev:hover,
.case-lightbox__next:hover{ background: rgba(255,255,255,.25); }

@media (max-width: 768px){
    .case-lightbox__image{ max-width: 95vw; max-height: 65vh; }
    .case-lightbox__prev, .case-lightbox__next{ width: 44px; height: 60px; font-size: 36px; }
    .case-lightbox__prev{ left: 8px; }
    .case-lightbox__next{ right: 8px; }
}