body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
}
header {
    background: #020a66;
    color: #fff;
    padding: 1rem;
    text-align: center;
}
.gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding: 2rem;
}

.photo {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
    border: 2px solid #ddd;
    width: 100%;
    max-width: 1204px;
    aspect-ratio: 1204 / 768;
    display: flex;
    align-items: center;
    justify-content: center;
}
.photo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border: 1px solid #bbb;
    border-radius: 4px;
    box-sizing: border-box;
    background: #fafafa;
    display: block;
    max-width: 100%;
    max-height: 100%;
}