.img-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);  /* 5張一排 */
    gap: 10px;
}

.img-container2 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);  /* 5張一排 */
    gap: 10px;
}

.img-container img {
    width: 100%;
    max-width: 800px;
}

.img-box {
    position: relative;
    width: 100%;
    max-width: 800px;
}

.img-box img.bg {
    width: 100%;
    display: block;
}

.img-box img.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

@media (max-width: 900px) {
    .img-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .img-container2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .img-container {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 600px) {
    .img-container2 {
        grid-template-columns: 1fr;
    }
}