{
    "widgettype": "VBox",
    "options": {
        "cheight": 40,
        "width": "100%",
        "padding": "16px",
        "spacing": "12px"
    },
    "subwidgets": [
        {
            "widgettype": "HBox",
            "options": {
                "width": "100%",
                "justifyContent": "space-between",
                "alignItems": "center"
            },
            "subwidgets": [
                {
                    "widgettype": "VBox",
                    "options": {"spacing": "4px"},
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "知识库", "cfontsize": 22, "fontWeight": "bold", "color": "#333"}},
                        {"widgettype": "Text", "options": {"text": "点击知识库进入文档管理，支持多级目录和拖拽上传", "cfontsize": 14, "color": "#888"}}
                    ]
                },
                {
                    "widgettype": "Button",
                    "options": {
                        "label": "+ 新建知识库",
                        "bgcolor": "#4a90d9",
                        "color": "#fff"
                    }
                }
            ]
        },
        {
            "widgettype": "HBox",
            "options": {
                "width": "100%",
                "spacing": "12px",
                "wrap": true
            },
            "subwidgets": [
                {
                    "widgettype": "VBox",
                    "options": {
                        "cwidth": 16,
                        "cheight": 12,
                        "bgcolor": "#f0f7ff",
                        "padding": "16px",
                        "css": "card clickable",
                        "border": "1px solid #d0e4f7"
                    },
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "📚 产品文档", "cfontsize": 16, "fontWeight": "bold"}},
                        {"widgettype": "Text", "options": {"text": "CLIP · 1024维", "cfontsize": 12, "color": "#888"}},
                        {"widgettype": "HBox", "options": {"spacing": "12px"}, "subwidgets": [
                            {"widgettype": "Text", "options": {"text": "📄 12文档", "cfontsize": 12, "color": "#666"}},
                            {"widgettype": "Text", "options": {"text": "📁 3目录", "cfontsize": 12, "color": "#666"}},
                            {"widgettype": "Text", "options": {"text": "💾 256MB", "cfontsize": 12, "color": "#666"}}
                        ]}
                    ],
                    "binds": [
                        {"wid": "self", "event": "click", "actiontype": "urlwidget", "target": "app.rag_main_content", "mode": "replace", "options": {"url": "{{entire_url('/knowledge_bases_list/detail.ui')}}"}}
                    ]
                },
                {
                    "widgettype": "VBox",
                    "options": {
                        "cwidth": 16,
                        "cheight": 12,
                        "bgcolor": "#f8f9fa",
                        "padding": "16px",
                        "css": "card clickable",
                        "border": "1px solid #e0e0e0"
                    },
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "🎵 音频资料库", "cfontsize": 16, "fontWeight": "bold"}},
                        {"widgettype": "Text", "options": {"text": "Whisper · 音频向量化", "cfontsize": 12, "color": "#888"}},
                        {"widgettype": "HBox", "options": {"spacing": "12px"}, "subwidgets": [
                            {"widgettype": "Text", "options": {"text": "📄 45文档", "cfontsize": 12, "color": "#666"}},
                            {"widgettype": "Text", "options": {"text": "📁 5目录", "cfontsize": 12, "color": "#666"}},
                            {"widgettype": "Text", "options": {"text": "💾 1.2GB", "cfontsize": 12, "color": "#666"}}
                        ]}
                    ],
                    "binds": [
                        {"wid": "self", "event": "click", "actiontype": "urlwidget", "target": "app.rag_main_content", "mode": "replace", "options": {"url": "{{entire_url('/knowledge_bases_list/detail.ui')}}"}}
                    ]
                },
                {
                    "widgettype": "VBox",
                    "options": {
                        "cwidth": 16,
                        "cheight": 12,
                        "bgcolor": "#f8f9fa",
                        "padding": "16px",
                        "css": "card clickable",
                        "border": "1px solid #e0e0e0"
                    },
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "+ 新建知识库", "cfontsize": 16, "color": "#aaa", "halign": "center"}},
                        {"widgettype": "Text", "options": {"text": "点击创建", "cfontsize": 12, "color": "#ccc", "halign": "center"}}
                    ]
                }
            ]
        }
    ]
}