.share-clipboard-popover {
    display: inline-flex;
    cursor: pointer;
    align-items: center;
    position: relative;
    z-index: 2;
}

.share-clipboard-popover-tooltip {
    padding: 2px 6px;
    font-size: 12px;
    white-space: nowrap;
    background-color: rgba(0,0,0,0.75);
    color: #fff;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s;
}

.share-clipboard-popover:hover .share-clipboard-popover-tooltip {
    opacity: 1;
}


/* 多行文本截断 */
.text-truncate-multiline {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5; /* 限制3行 */
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
    max-height: calc(1.4em * 5); /* 3行高度 */
    transition: max-height 0.3s ease;
}

/* 展开状态 */
.text-truncate-multiline.expanded {
    -webkit-line-clamp: unset;
    max-height: none;
    overflow: visible;
}

/* 展开/收起按钮 */
.btn-expand {
    background: none;
    border: none;
    color: #0d6efd;
    font-size: 12px;
    cursor: pointer;
    margin-left: 4px;
    white-space: nowrap;
}

.btn-expand:hover {
    text-decoration: underline;
}