#main {
    height: unset;
    overflow-y: auto; /* 允许垂直滚动 */
}

#list-panel {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 10px; /* 调整子项内容间距 */
    padding: 20px;
    width: 100%;
    overflow-y: scroll;
}

.list-item {
    width: calc(25% - 7.5px);
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.list-item-image {
    width: 100%;
    height: 225px; /* 16:9 aspect ratio for 400px width */
    object-fit: cover;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.list-item-content {
    padding: 10px 15px; /* 调整子项内容间距 */
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.list-item-name {
    font-size: 18px;
    font-weight: 600;
}
.list-item-actions {
    position: relative;
}
.action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
}
.action-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 30px;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1;
    min-width: 80px;
    padding: 5px 0;
}
.action-menu button {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    text-align: center;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s ease;
    color: #333;
}
.action-menu button:hover {
    background-color: #f0f0f0;
}
.list-item-date {
    padding: 0 15px 10px; /* 调整子项内容间距 */
    font-size: 12px;
    color: #999;
}