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<section id="standard-model-session-header"
         data-rtt="rtt-engine"
         data-coherence="stable"
         data-drift="minimal"
         data-regime="R2-R3">
 
  <h2>Session Context</h2>
 
  <div class="context-block">
 
    <span class="context-label"><strong>Canon:</strong></span>
    <span class="context-value">
      active (sector‑grammar • excitation‑based)
    </span><br>
 
    <span class="context-label"><strong>Modules:</strong></span>
    <span class="context-value">
      QFT → Gauge Symmetry → Excitation Sectors → Higgs Mechanism →  
      Mass Generation → Interaction Channels → Renormalization →  
      High‑Energy Symmetry Restoration
    </span><br>
 
    <span class="context-label"><strong>Drift:</strong></span>
    <span class="context-value">
      minimal (excitation‑true • no particle‑object ontology)
    </span><br>
 
    <span class="context-label"><strong>Coherence:</strong></span>
    <span class="context-value">
      stable (gauge‑geometry • symmetry‑preserving)
    </span><br>
 
    <span class="context-label"><strong>Version:</strong></span>
    <span class="context-value">
      1.0 (sector‑grammar‑stable)
    </span><br>
 
    <span class="context-label"><strong>Format:</strong></span>
    <span class="context-value">
      html + markdown + diagrams + resonance‑maps
    </span><br>
 
    <span class="context-label"><strong>Front door:</strong></span>
    <span class="context-value">
      exists (Standard Model root)
    </span><br>
 
    <span class="context-label"><strong>Every page:</strong></span>
    <span class="context-value">
      stands alone + AI‑parsable + excitation‑aligned
    </span><br>
 
    <span class="context-label"><strong>Audience:</strong></span>
    <span class="context-value">
      students + researchers + physicists + AIs
    </span>
 
  </div>
 
</section>
 
<div style="display:inline-block;padding:6px 12px;background:#1a1a1a;color:#fff;
            border-radius:6px;font-family:Arial, sans-serif;font-size:13px;">
  ⚛️ Standard Model<br>📘 Sector Grammar • Excitation‑Based • AI‑Ready
</div>