.grid-container {
    display: block !important;
    column-count: 4;
    column-gap: 1rem;
    width: 100%;
    min-width: 320px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    background-color: var(--color-box);
    border-radius: 8px;
    border: 2px solid var(--color-border);
}

@media (max-width: 700px) {
    .grid-container {
        column-count: 2;
    }
}

.photo-item {
    display: inline-block;
    width: 100%;
    margin: 0 0 1rem 0;
    position: relative;
    border-radius: 6px;
    border: 2px solid var(--color-border);
    box-sizing: border-box;
    transition: transform 0.3s, box-shadow 0.3s;
    break-inside: avoid;
}

.photo-item img {
    width: 100%;
    height: auto;
    border-radius: 6px;
    display: block;
}

.photo-item:hover {
    transform: scale(1.8);
    z-index: 10;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}