{
  "slug": "slider",
  "schemaVersion": 2,
  "sourceKind": "structured-spec",
  "confidence": "medium",
  "semanticTypeCandidates": ["slider", "range-slider", "seek-bar"],
  "variantDimensions": [
    { "axis": "state", "values": ["default", "active", "disabled"] },
    { "axis": "orientation", "values": ["horizontal", "vertical"] }
  ],
  "representativeVariants": [
    "horizontal-default",
    "horizontal-active",
    "horizontal-disabled"
  ],
  "anatomy": {
    "parts": ["track", "fill", "knob"],
    "required": ["track", "knob"]
  },
  "structurePatterns": [
    "Track = 4px height, tier3-line (#E7E7E7) background",
    "圆钮之前的填充 = 墨色（ink-primary），与进度条一致；不用蓝色",
    "Knob = circular, 16px diameter, white fill, flat (no shadow)",
    "Knob border = 1.5px tier3-line",
    "Active knob = subtle panel gray (#F3F3F3)"
  ],
  "usageHints": [
    "Use for adjustable numeric values where precision is secondary",
    "填充用墨色；蓝色只用于焦点环",
    "Show current value label above knob when available"
  ],
  "doNotInvent": [
    "Large/thick knob shadows — Aham is flat",
    "彩色或蓝色的滑块轨道",
    "Tick marks without explicit requirement"
  ],
  "unknowns": ["Range slider (dual knob) pattern"]
}