/* 知识库管理后台样式 */

.knowledge-admin-page {
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

/* 筛选区域 */
.admin-filters {
    padding: var(--spacing-md);
}

.filter-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 200px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 知识列表 */
.knowledge-admin-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.knowledge-admin-card {
    padding: var(--spacing-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}

.knowledge-admin-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 卡片头部 */
.admin-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.card-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--text-secondary);
}

.meta-item i {
    font-size: 12px;
}

/* 徽章 */
.card-badges {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.badge {
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.badge-success {
    background: var(--success-light);
    color: var(--success-color);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.badge-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* 卡片主体 */
.admin-card-body {
    margin-bottom: var(--spacing-md);
}

.knowledge-summary {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.knowledge-keywords {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.keyword-tag {
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

/* 卡片操作按钮 */
.admin-card-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-sm i {
    margin-right: 4px;
}

/* 模态框表单 */
#knowledgeForm .form-group {
    margin-bottom: var(--spacing-md);
}

#knowledgeForm .form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

#knowledgeForm .form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: border-color 0.3s;
}

#knowledgeForm .form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

#knowledgeForm textarea.form-input {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

.form-help {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-tertiary);
}

/* 验证错误样式 */
.form-input.is-invalid {
    border-color: var(--danger-color);
}

.invalid-feedback {
    display: none;
    margin-top: 4px;
    font-size: 12px;
    color: var(--danger-color);
}

.form-input.is-invalid + .invalid-feedback {
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .knowledge-admin-page {
        padding: var(--spacing-md);
    }

    .admin-card-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .admin-card-actions {
        flex-direction: column;
    }

    .admin-card-actions .btn-sm {
        width: 100%;
        justify-content: center;
    }

    .filter-row {
        flex-direction: column;
    }

    .filter-group {
        min-width: unset;
        width: 100%;
    }
}

/* 空状态样式 */
.knowledge-admin-list .empty-state {
    text-align: center;
    padding: 60px 20px;
}

.knowledge-admin-list .empty-state i {
    font-size: 64px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.knowledge-admin-list .empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.knowledge-admin-list .empty-state p {
    color: var(--text-tertiary);
}