Device Lab system color scheme check
In the device lab scenario, complete system color-scheme detection: includes real content, interactive controls, clear state feedback, and responsive layouts across sizes.
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<header class="mast"><div><span class="eyebrow">minimal / system color scheme detection / BEGINNER</span><h1>Device Lab system color scheme check</h1><p class="intro">In the device lab scenario, complete system color-scheme detection: includes real content, interactive controls, clear state feedback, and responsive layouts across sizes.</p></div><span class="scenario">Device Lab</span></header>
<div class="composition-deck"><div class="deck-bar"><span>CONTROL DECK · 04</span><span>System Color Scheme Detection</span><span class="deck-lights" aria-hidden="true"><i></i><i></i><i></i></span></div><section class="demo" aria-label="Device Lab system color scheme detection interactive area"><div class="workflow-dispatch"><aside class="dispatch-console"><span class="eyebrow">Device Lab DISPATCH</span><h2>Device check dashboard</h2><form id="workflowDispatchForm"><label>Task Type<select id="workflowDispatchKind"><option>Screen Capability</option><option>Input capability</option><option>Storage Capability</option></select></label><label>Check Items<input id="workflowDispatchAmount" type="number" min="1" max="9999" value="42"><span>Item</span></label><fieldset><legend>Processing priority</legend><label><input type="radio" name="workflowPriority" value="normal" checked>Regular</label><label><input type="radio" name="workflowPriority" value="urgent">Urgent</label></fieldset><button class="action primary" type="submit">Start checking</button></form><label>Current task<select id="workflowDispatchActive" aria-label="Switch current task"><option value="1">Screen Capability</option><option value="2">Input capability</option></select></label><output id="workflowDispatchSummary">Waiting for Dispatch</output></aside><section id="workflowCore" class="workflow-core dispatch-workbench" data-dispatch-priority="normal"><!-- 11DZ_CORE_START:browser-media-device-color-scheme --><div id="schemeLab" class="scheme-lab" data-scheme="system"><aside><span class="eyebrow">COLOR SCHEME</span><h2>Device lab color scheme preview</h2><fieldset id="schemeChoices"><legend>Display Mode</legend><label><input type="radio" name="scheme" value="system" checked>Follow system</label><label><input type="radio" name="scheme" value="light">Forced light mode</label><label><input type="radio" name="scheme" value="dark">Force dark mode</label></fieldset><label><input id="schemeContrast" type="checkbox" data-core-bridge="browser-media-device-color-scheme">Enhanced edge contrast</label></aside><section><header><i></i><i></i><i></i><output id="schemeDetected">Detect system preferences</output></header><article><span class="eyebrow">LIVE PREVIEW</span><h3>Theme switching preserves content structure</h3><p>Color roles, boundaries, and focus styles change together.</p><button id="schemeSample" class="action" type="button">Switch sample state</button></article><ul id="schemeTokens"><li><i></i>Page</li><li><i></i>Text</li><li><i></i>Emphasis</li></ul></section></div><!-- 11DZ_CORE_END --></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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