{"L1_core": {"domain": "specification", "metric": "CRI", "category": "color_quality"}, "L3_technical": {"cri_value": 90, "standards": ["CIE_13.3", "IES_TM-30", "DLC_Premium"], "r9_typical": "good", "ies_rf_equivalent": 88}, "L2_specification": {"type": "color_rendering_index", "value": 90, "applications": ["retail", "museum", "hospitality", "healthcare"], "quality_tier": "high"}}