{
  "schema_version": "0.1.0",
  "content_version": "2026-10-09-draft-6",
  "status": "draft",
  "language": "zh-CN",
  "last_reviewed": "2026-10-09",
  "title": "Sun 产品事实 / Product facts",
  "summary": "Sun 的配置、主要功能、选型尺寸和配件关系，附宣传册来源与产品方确认记录。",
  "product": {
    "id": "sun",
    "name": "Sun Gait Trainer",
    "brand": "Beneland",
    "category": {"zh": "学步车", "en": "Gait trainer"},
    "sources": [{"source_id": "brochure_short_20260608", "pages": [1, 2]}]
  },
  "configurations": [
    {"id": "anterior", "name_zh": "前向配置", "name_en": "Anterior", "sources": [{"source_id": "brochure_short_20260608", "pages": [2]}]},
    {"id": "posterior", "name_zh": "后向配置", "name_en": "Posterior", "sources": [{"source_id": "brochure_short_20260608", "pages": [2]}]}
  ],
  "confirmed_accessory_policy": {
    "status": "user_confirmed",
    "confirmed_at": "2026-10-09",
    "source": {"type": "user_confirmation", "label": "产品方确认", "record_id": "accessory-options-20261009"},
    "statement_zh": "背靠、头靠、扶手、胸托和座椅按需选配。",
    "accessories": [
      {"id": "backrest", "name_zh": "背靠", "name_en": "Backrest", "supply": "optional"},
      {"id": "headrest", "name_zh": "头靠", "name_en": "Headrest", "supply": "optional"},
      {"id": "arm_supports", "name_zh": "扶手", "name_en": "Arm supports", "supply": "optional"},
      {"id": "chest_support", "name_zh": "胸托", "name_en": "Chest support", "supply": "optional"},
      {"id": "seat", "name_zh": "座椅", "name_en": "Seat", "supply": "optional"}
    ]
  },
  "features": [
    {
      "id": "height_backrest",
      "name_zh": "高度与背靠", "name_en": "Height & backrest",
      "summary_zh": "车架高度可调，背靠提供多个倾角位置。",
      "summary_en": "Adjustable frame height, with a choice of backrest angles.",
      "adjustments": ["frame_height", "backrest_angle"],
      "optional_accessory_ids": ["backrest"],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [4, 6]}]
    },
    {
      "id": "headrest",
      "name_zh": "头靠", "name_en": "Headrest",
      "summary_zh": "头靠可上下、前后及左右调整，需配合背靠使用。",
      "summary_en": "Headrest position adjusts up/down, front/back and left/right. Requires the backrest.",
      "adjustments": ["up_down", "front_back", "left_right"],
      "requires": ["backrest"],
      "optional_accessory_ids": ["headrest"],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [5]}]
    },
    {
      "id": "arm_supports",
      "name_zh": "扶手与握把", "name_en": "Arm supports & handgrips",
      "summary_zh": "旋转扶手配有两类握把：固定式与可调式。",
      "summary_en": "Swivel arm supports with fixed or independently adjustable handgrips.",
      "details_zh": ["固定式握把随扶手一起转动。", "可调式握把支持旋转与倾角调整。"],
      "handgrip_variants": [
        {"id": "fixed_to_armrest", "adjustments": ["rotates_with_armrest"]},
        {"id": "adjustable", "adjustments": ["rotation", "angle"]}
      ],
      "optional_accessory_ids": ["arm_supports"],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [6]}]
    },
    {
      "id": "wrap_around_trunk_support",
      "name_zh": "包围式胸托", "name_en": "Wrap-around trunk support",
      "summary_zh": "胸托可调高度与倾角，适用于前向和后向配置。",
      "summary_en": "Height- and tilt-adjustable trunk support for anterior and posterior configurations.",
      "adjustments": ["height", "tilt"],
      "supported_configurations": ["anterior", "posterior"],
      "optional_accessory_ids": ["chest_support"],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [7]}]
    },
    {
      "id": "seats",
      "name_zh": "座位", "name_en": "Seats",
      "summary_zh": "后向鞍座可调高度并折叠；前向支撑座椅用于安置和训练期间的短时休息。",
      "summary_en": "An adjustable, folding posterior saddle seat, or anterior support for setup and short rests.",
      "details_zh": ["后向鞍座需配合背靠。", "前向支撑座椅不用于全承重就坐。"],
      "seat_variants": [
        {"id": "posterior_saddle_seat", "adjustments": ["height", "fold"], "requires": ["backrest"]},
        {"id": "anterior_support_seat", "documented_uses": ["transfer_setup_support", "short_rest"], "full_weight_bearing_seating": false}
      ],
      "optional_accessory_ids": ["seat"],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [8]}]
    },
    {
      "id": "castors",
      "name_zh": "脚轮", "name_en": "Castor control",
      "summary_zh": "前后脚轮均可锁定方向；后脚轮另有刹车和速度控制。",
      "summary_en": "Directional locking at the castors, with braking and speed control at the rear.",
      "functions": [
        {"applies_to": "front_castors", "actions": ["directional_lock"]},
        {"applies_to": "rear_castors", "actions": ["directional_lock", "brake", "speed_control"]}
      ],
      "sources": [{"source_id": "brochure_long_20260608", "pages": [9]}]
    }
  ],
  "sizes": [
    {
      "id": "small", "label": "S / Small",
      "overall_height_including_headrest_cm": {"min": 89, "max": 114},
      "overall_width_cm": 55.5,
      "inner_width_cm": 44,
      "overall_depth_cm": 86,
      "inner_depth_cm": 62,
      "height_from_bottom_to_handle_cm": {"min": 53.5, "max": 67.5},
      "brochure_user_height_cm": {"min": 100, "max": 125},
      "brochure_weight_capacity": {"kg": 76, "lb": 168},
      "sources": [{"source_id": "brochure_short_20260608", "pages": [2]}]
    },
    {
      "id": "medium", "label": "M / Medium",
      "overall_height_including_headrest_cm": {"min": 104, "max": 139},
      "overall_width_cm": 60,
      "inner_width_cm": 49,
      "overall_depth_cm": 90.5,
      "inner_depth_cm": 66,
      "height_from_bottom_to_handle_cm": {"min": 69, "max": 90},
      "brochure_user_height_cm": {"min": 115, "max": 150},
      "brochure_weight_capacity": {"kg": 76, "lb": 168},
      "sources": [{"source_id": "brochure_short_20260608", "pages": [2]}]
    },
    {
      "id": "large", "label": "L / Large",
      "overall_height_including_headrest_cm": {"min": 123, "max": 164},
      "overall_width_cm": 62.5,
      "inner_width_cm": 52,
      "overall_depth_cm": 92,
      "inner_depth_cm": 70,
      "height_from_bottom_to_handle_cm": {"min": 86, "max": 113},
      "brochure_user_height_cm": {"min": 134, "max": 175},
      "brochure_weight_capacity": {"kg": 76, "lb": 168},
      "sources": [{"source_id": "brochure_short_20260608", "pages": [2]}]
    }
  ],
  "measurement_definitions": [
    {"field": "overall_height_including_headrest_cm", "label_zh": "整体高度（含头靠）", "label_en": "Overall height including headrest", "unit": "cm", "type": "range"},
    {"field": "overall_width_cm", "label_zh": "整体宽度", "label_en": "Overall width", "unit": "cm", "type": "number"},
    {"field": "inner_width_cm", "label_zh": "内宽", "label_en": "Inner width", "unit": "cm", "type": "number"},
    {"field": "overall_depth_cm", "label_zh": "整体深度", "label_en": "Overall depth", "unit": "cm", "type": "number"},
    {"field": "inner_depth_cm", "label_zh": "内深", "label_en": "Inner depth", "unit": "cm", "type": "number"},
    {"field": "height_from_bottom_to_handle_cm", "label_zh": "底部至握把高度", "label_en": "Height from bottom to handle", "unit": "cm", "type": "range"},
    {"field": "brochure_user_height_cm", "label_zh": "宣传册使用者身高范围", "label_en": "User height in brochure", "unit": "cm", "type": "range"},
    {"field": "brochure_weight_capacity", "label_zh": "宣传册承重", "label_en": "Weight capacity in brochure", "unit": "kg / lb", "type": "published_mass_pair"}
  ],
  "measurement_notes": [
    "数值据短册第 2 页；英制与公制承重沿用原册写法。",
    "整体高度含头靠，使用者身高范围单独列示。",
    "表中承重对应宣传册中的整机；配件按各自的用途与限制使用。"
  ],
  "accessory_relationships": [
    {
      "id": "wrap_around_trunk_support",
      "name_zh": "包围式胸托", "name_en": "Wrap-Around Trunk Support",
      "relationship": "supported_configurations",
      "supported_configurations": ["anterior", "posterior"],
      "adjustments": ["height", "tilt"],
      "statement_zh": "可用于前向和后向配置，并可调节高度与倾角。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [7]}]
    },
    {
      "id": "headrest",
      "name_zh": "头靠", "name_en": "Headrest",
      "relationship": "requires", "requires": ["backrest"], "attaches_directly_to_frame": false,
      "statement_zh": "需配合背靠使用，不能直接安装到车架。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [5]}]
    },
    {
      "id": "upper_trunk_support_pad",
      "name_zh": "上躯干支撑垫", "name_en": "Upper Trunk Support Pad",
      "relationship": "requires", "requires": ["backrest"], "attaches_directly_to_frame": false,
      "statement_zh": "需配合背靠使用，不能直接安装到车架。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [7]}]
    },
    {
      "id": "posterior_saddle_seat",
      "name_zh": "后向鞍座", "name_en": "Posterior Saddle Seat",
      "relationship": "requires", "requires": ["backrest"], "attaches_directly_to_frame": false,
      "statement_zh": "需配合背靠使用，不能直接安装到车架。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [8]}]
    },
    {
      "id": "u_style_harness",
      "name_zh": "U 型安全带", "name_en": "U Style Harness",
      "relationship": "requires", "requires": ["backrest"], "attaches_directly_to_frame": false,
      "statement_zh": "需配合背靠使用，不能直接安装到车架。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [10]}]
    },
    {
      "id": "hip_positioner",
      "name_zh": "髋部定位支撑", "name_en": "Hip Positioner",
      "relationship": "requires", "requires": ["backrest"], "attaches_directly_to_frame": false,
      "statement_zh": "需配合背靠使用，不能直接安装到车架。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [10]}]
    }
  ],
  "documented_use_limits": [
    {
      "accessory_id": "anterior_support_seat",
      "name_zh": "前向支撑座椅", "name_en": "Anterior Support Seat",
      "statement_zh": "在转移和安置时提供支撑，也可供训练期间短时休息；不用于全承重就坐。",
      "sources": [{"source_id": "brochure_long_20260608", "pages": [8]}]
    }
  ],
  "demonstrated_in_viewer": [
    {
      "feature_id": "wrap_around_trunk_support",
      "configurations": ["anterior"],
      "checked_at": "2026-10-09",
      "statement_zh": "当前 3D 仅演示前向配置下的包围式胸托。",
      "evidence_type": "current_website_review"
    }
  ],
  "pending_confirmations": [
    "现行宣传册版次、在售尺寸与配置。",
    "基础车架的具体随货范围。",
    "包围式胸托前后向适用口径是否仍沿用现有宣传册。",
    "对外公司名称、邮箱及正式产品页面地址是否沿用。"
  ],
  "official_media": [
    {
      "id": "beneland_official_youtube",
      "type": "channel",
      "title": "Beneland 官方 YouTube",
      "url": "https://www.youtube.com/@BenelandComfort",
      "status": "user_confirmed",
      "confirmed_at": "2026-10-09",
      "source": {"type": "user_confirmation", "label": "产品方确认", "record_id": "official-youtube-20261009"},
      "description_zh": "Beneland 官方频道。"
    },
    {
      "id": "sun_anterior_configuration_video",
      "type": "video",
      "title": "Sun Gait Trainer - Anterior Use Configuration",
      "url": "https://www.youtube.com/watch?v=Lt6whTrP4iQ",
      "channel_id": "beneland_official_youtube",
      "configuration": "anterior",
      "approximate_duration_minutes": 11,
      "description_zh": "Sun 前向配置演示，约 11 分钟。",
      "source": {"type": "user_provided_link", "label": "产品方提供"},
      "metadata_review": {"checked_at": "2026-10-09", "method": "browser", "checked_fields": ["title", "approximate_duration_minutes"]}
    },
    {
      "id": "sun_posterior_configuration_video",
      "type": "video",
      "title": "Sun Gait Trainer - Posterior Use Configuration",
      "url": "https://www.youtube.com/watch?v=5tc8u2p0qEE",
      "channel_id": "beneland_official_youtube",
      "configuration": "posterior",
      "published_at": "2026-06-08",
      "description_zh": "Sun 后向配置演示。",
      "source": {"type": "official_channel", "label": "Beneland Comfort 官方频道"},
      "metadata_review": {"checked_at": "2026-10-09", "method": "browser", "checked_fields": ["title", "channel_id", "published_at"]}
    }
  ],
  "sources": [
    {
      "id": "brochure_short_20260608",
      "label": "英文短册（文件标识 20260608）",
      "file_name": "20260608学步车宣传册英文单册.pdf",
      "url": "../../resources/reference/product-docs/20260608学步车宣传册英文单册.pdf",
      "reviewed_pages": [1, 2],
      "review_method": "第 1 页文字；第 2 页完整页面及表格",
      "source_type": "manufacturer_brochure",
      "publication_scope": "public_authorized"
    },
    {
      "id": "brochure_long_20260608",
      "label": "英文长册（文件标识 20260608）",
      "file_name": "20260608学步车宣传册英文长册.pdf",
      "url": "../../resources/reference/product-docs/20260608学步车宣传册英文长册.pdf",
      "reviewed_pages": [4, 5, 6, 7, 8, 9, 10],
      "review_method": "第 4–6、9 页文字；第 7、8、10 页完整页面及文字",
      "source_type": "manufacturer_brochure",
      "publication_scope": "public_authorized"
    }
  ]
}