/* 前端样式 */

.frkb-knowledge-base {
    margin: 20px 0;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.frkb-container {
    max-width: 1200px;
    margin: 0 auto;
}

.frkb-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 30px;
    text-align: center;
}

.frkb-header h2 {
    margin: 0;
    font-size: 32px;
}

.frkb-content {
    display: flex;
    min-height: 600px;
}

.frkb-sidebar {
    width: 300px;
    border-right: 1px solid #e0e0e0;
    background: #fafafa;
    overflow-y: auto;
}

.frkb-tree {
    padding: 20px;
}

.frkb-categories,
.frkb-subcategories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.frkb-subcategories {
    padding-left: 20px;
}

.frkb-category-item {
    margin: 10px 0;
}

.frkb-category-toggle {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.frkb-category-toggle:hover {
    background-color: #e8eaf6;
}

.frkb-toggle-icon {
    margin-right: 8px;
    font-size: 10px;
    transition: transform 0.2s;
}

.frkb-toggle-icon.collapsed {
    transform: rotate(-90deg);
}

.frkb-category-name {
    font-weight: 500;
    color: #333;
}

.frkb-document-count {
    margin-left: auto;
    font-size: 12px;
    color: #999;
    background: #e0e0e0;
    padding: 2px 8px;
    border-radius: 10px;
}

.frkb-documents {
    list-style: none;
    padding: 0;
    margin: 5px 0 0 0;
}

.frkb-document-item {
    margin: 5px 0;
}

.frkb-document-link {
    display: block;
    padding: 6px 12px 6px 24px;
    color: #666;
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.2s;
}

.frkb-document-link:hover {
    color: #667eea;
    border-left-color: #667eea;
    background-color: #f5f5f5;
}

.frkb-main {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.frkb-welcome {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.frkb-welcome h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
}

/* 文档列表样式 */
.frkb-document-list {
    padding: 20px;
}

.frkb-document-list h3 {
    margin-top: 0;
    color: #333;
}

.frkb-docs {
    list-style: none;
    padding: 0;
}

.frkb-doc-item {
    border-bottom: 1px solid #e0e0e0;
    padding: 20px 0;
}

.frkb-doc-item:last-child {
    border-bottom: none;
}

.frkb-doc-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.frkb-doc-link h4 {
    margin: 0 0 8px 0;
    color: #667eea;
    font-size: 18px;
}

.frkb-doc-link:hover h4 {
    color: #764ba2;
}

.frkb-doc-excerpt {
    color: #666;
    margin: 0 0 10px 0;
    line-height: 1.6;
}

.frkb-doc-meta {
    font-size: 12px;
    color: #999;
}

.frkb-doc-meta span {
    margin-right: 20px;
}

/* 文档详情页样式 */
.frkb-document-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.frkb-document-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #667eea;
}

.frkb-document-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
}

.frkb-document-meta span {
    margin-right: 25px;
    display: inline-flex;
    align-items: center;
}

.frkb-document-meta span i {
    margin-right: 5px;
}

.frkb-document-content {
    line-height: 1.8;
    color: #333;
}

.frkb-document-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.frkb-document-content h2,
.frkb-document-content h3 {
    color: #333;
    margin-top: 30px;
}

.frkb-document-content p {
    margin-bottom: 15px;
}

.frkb-document-content ul,
.frkb-document-content ol {
    margin-bottom: 20px;
}

.frkb-document-content li {
    margin-bottom: 8px;
}

/* 搜索框样式 */
.frkb-search-box {
    padding: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.frkb-search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.frkb-search-form input[type="text"] {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.frkb-search-form input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
}

.frkb-search-form button {
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: transform 0.2s;
}

.frkb-search-form button:hover {
    transform: translateY(-2px);
}

.frkb-search-results h4 {
    color: #333;
    margin-bottom: 20px;
}

/* 文档详情页样式 */
.frkb-document-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
}

.frkb-document-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #667eea;
}

.frkb-document-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
}

.frkb-document-meta span {
    margin-right: 20px;
}

.frkb-document-content {
    line-height: 1.8;
    color: #333;
}

.frkb-document-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.frkb-document-content h2,
.frkb-document-content h3 {
    color: #333;
    margin-top: 30px;
}

.frkb-document-content p {
    margin-bottom: 15px;
}

.frkb-document-content ul,
.frkb-document-content ol {
    margin-bottom: 20px;
}

.frkb-document-content li {
    margin-bottom: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .frkb-content {
        flex-direction: column;
    }

    .frkb-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }

    .frkb-header h2 {
        font-size: 24px;
    }

    .frkb-main {
        padding: 20px;
    }
}