{
"schema_version": 1,
"root": {
"id": "page",
"component": "stack",
"layout": {
"padding_token": "page_padding",
"gap_token": "content_gap"
},
"children": [
{
"id": "title",
"component": "text",
"properties": {
"text": "面包屑导航 / BreadcrumbBar",
"text_role": "subtitle"
}
},
{
"id": "location-path",
"component": "breadcrumb",
"property_bindings": {
"items": "navigation_path",
"expanded": "navigation_overflow_open"
},
"action_bindings": {
"select": "navigation_selected",
"expanded_change": "navigation_overflow_changed"
},
"layout": {
"width": 520
}
},
{
"id": "summary",
"component": "text",
"properties": {
"text": "稳定语义 ID 保留路径身份，溢出菜单由平台体验参数绘制。 / Stable semantic IDs preserve path identity; platform profiles draw overflow.",
"text_role": "body",
"wrap": "word",
"ellipsis": false
}
}
]
}
}