/**
 * 知识库双链面板（反向链接 + 出链）样式
 *
 * 容器：#detailBacklinks（桌面）/ #detailPanelBacklinks（移动详情面板）
 * 位置：正文与附件之后、元信息之前，属于「文末索引」，不打断阅读。
 */

:root {
    --kb-backlinks-border: rgba(37, 99, 235, 0.16);
    --kb-backlinks-bg-hover: rgba(37, 99, 235, 0.06);
}

[data-theme="dark"],
html.dark {
    --kb-backlinks-border: rgba(96, 165, 250, 0.24);
    --kb-backlinks-bg-hover: rgba(96, 165, 250, 0.1);
}

.detail-backlinks,
.detail-panel-backlinks {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px dashed var(--border-light, rgba(0, 0, 0, 0.08));
}

.kb-backlinks-loading {
    font-size: 0.8125rem;
    color: var(--text-tertiary, #9ca3af);
}

.kb-backlinks-group + .kb-backlinks-group {
    margin-top: 1.125rem;
}

.kb-backlinks-group-title {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin: 0 0 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
}

.kb-backlinks-group-title i {
    font-size: 0.9375rem;
    color: var(--kb-link-color, #2563eb);
}

.kb-backlinks-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kb-backlinks-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.4375rem 0.625rem;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.kb-backlinks-item:hover,
.kb-backlinks-item:focus-visible {
    background: var(--kb-backlinks-bg-hover);
    border-color: var(--kb-backlinks-border);
    outline: none;
}

.kb-backlinks-item-title {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 0.875rem;
    color: var(--kb-link-color, #2563eb);
    /* 标题可能很长，单行省略优于把整块撑成两行 */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kb-backlinks-item-meta {
    flex: 0 0 auto;
    max-width: 45%;
    font-size: 0.75rem;
    color: var(--text-tertiary, #9ca3af);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 1023px) {
    /* 窄屏下标题与元信息挤在一行会双双被截断，改成上下两行 */
    .kb-backlinks-item {
        flex-direction: column;
        align-items: stretch;
        gap: 0.125rem;
    }

    .kb-backlinks-item-meta {
        max-width: 100%;
    }
}