/* 精简后的单图展示 */
.activity-image {
    max-width: 900px;
    margin: 10px 0;
}

.activity-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 6px;
    cursor: zoom-in;
}
#imageModal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

#imageModal img {
    max-width: 90%;
    max-height: 90%;
    cursor: zoom-out;
}