{
    "widgettype": "VBox",
    "options": {
        "cheight": 40,
        "width": "100%",
        "padding": "16px",
        "spacing": "16px"
    },
    "subwidgets": [
        {
            "widgettype": "HBox",
            "options": {"width": "100%", "justifyContent": "space-between", "alignItems": "center"},
            "subwidgets": [
                {"widgettype": "Text", "options": {"text": "知识库", "cfontsize": 22, "fontWeight": "bold", "color": "#333"}},
                {"widgettype": "Button", "options": {"label": "+ 新建知识库", "bgcolor": "#4a90d9", "color": "#fff"}, "binds": [
                    {"wid": "self", "event": "click", "actiontype": "urlwidget",
                     "target": "Popup",
                     "popup_options": {"auto_dismiss": true},
                     "options": {"url": "{{entire_url('/knowledge_bases_list/new_kb_form.ui')}}"}}
                ]}
            ]
        },
        {
            "widgettype": "VBox",
            "options": {"width": "100%", "bgcolor": "#f8f9fa", "padding": "16px", "css": "card", "spacing": "4px"},
            "subwidgets": [
                {"widgettype": "HBox", "options": {"width": "100%", "justifyContent": "space-between"}, "subwidgets": [
                    {"widgettype": "Text", "options": {"text": "💾 存储容量", "cfontsize": 14, "fontWeight": "bold", "color": "#333"}},
                    {"widgettype": "Text", "options": {"text": "已用 0MB / 总计 100MB", "cfontsize": 12, "color": "#888"}}
                ]},
                {"widgettype": "VBox", "options": {"width": "100%", "cheight": 0.5, "bgcolor": "#e0e0e0", "css": ""}, "subwidgets": [
                    {"widgettype": "VBox", "options": {"cwidth": 0, "cheight": 0.5, "bgcolor": "#4a90d9", "css": ""}}
                ]}
            ]
        },
        {
            "widgettype": "urlwidget",
            "options": {
                "url": "{{entire_url('/api/kb/list')}}"
            }
        }
    ]
}