.works-grid1 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.works-grid2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* =========================
       响应式
    ========================== */
@media(max-width: 1024px) {

    .service-grid,
    .strength-grid,
    .works-grid1,
    .works-grid2,
    .client-logos,
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta {
        grid-template-columns: 1fr;
    }


}

@media(max-width: 768px) {

    .btn {
        width: 100%;
    }

    .service-grid,
    .strength-grid,
    .works-grid1,
    .works-grid2,
    .client-logos,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .service-card,
    .strength-item {
        border-right: none;
        border-bottom: 1px solid #ddd;
        padding-bottom: 30px;
    }

    .works-top {
        flex-direction: column;
        gap: 20px;
    }

    .cta-content {
        padding: 40px 25px;
    }

    .cta-content h3 {
        font-size: 34px;
    }
}



/* =========================
   图片灯箱
========================= */

.lightbox{
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);

    display: flex;
    align-items: center;
    justify-content: center;

    opacity: 0;
    visibility: hidden;

    transition: 0.35s;

    z-index: 99999;
}

.lightbox.active{
    opacity: 1;
    visibility: visible;
}

.lightbox-img{
    max-width: 90%;
    max-height: 85vh;

    object-fit: contain;

    transform: scale(0.92);
    transition: 0.35s;
}

.lightbox.active .lightbox-img{
    transform: scale(1);
}

/* 左右按钮 */

.lightbox-btn{
    position: absolute;
    top: 50%;
    transform: translateY(-50%);

    background: rgba(255,255,255,0.12);
    border: none;

    color: #fff;

    width: 56px;
    height: 56px;

    cursor: pointer;

    font-size: 28px;

    transition: 0.3s;

    backdrop-filter: blur(8px);
}

.lightbox-btn:hover{
    background: rgba(255,255,255,0.24);
}

.prev{
    left: 30px;
}

.next{
    right: 30px;
}

/* 关闭按钮 */

.close-btn{
    position: absolute;
    top: 20px;
    right: 30px;

    color: #fff;

    font-size: 42px;

    cursor: pointer;

    transition: 0.3s;
}

.close-btn:hover{
    opacity: 0.7;
}

/* 手机适配 */

@media(max-width:768px){

    .lightbox-btn{
        width: 44px;
        height: 44px;
        font-size: 22px;
    }

    .prev{
        left: 10px;
    }

    .next{
        right: 10px;
    }

}