Deep Sea Spotlight Stage
Complete a spotlight stage in a deep-sea scenario: includes realistic content, interactive controls, clear state feedback, and responsive layouts across sizes.
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<title>Deep Sea Spotlight Stage</title>
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<header class="mast"><div><span class="eyebrow">paper / Spotlight Stage / BEGINNER</span><h1>Deep Sea Spotlight Stage</h1><p class="intro">Complete a spotlight stage in a deep-sea scenario: includes realistic content, interactive controls, clear state feedback, and responsive layouts across sizes.</p></div><span class="scenario">Deep Sea</span></header>
<figure class="composition-gallery"><section class="demo" aria-label="Deep-sea Spotlight Stage interactive area"><div class="workflow-dispatch"><aside class="dispatch-console"><span class="eyebrow">Deep Sea DISPATCH</span><h2>Submarine mission control</h2><form id="workflowDispatchForm"><label>Task Type<select id="workflowDispatchKind"><option>Sonar Scan</option><option>Hot Spring Sampling</option><option>Return Beacon</option></select></label><label>Subsea Depth<input id="workflowDispatchAmount" type="number" min="1" max="9999" value="27"><span>m</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">Dive in</button></form><label>Current task<select id="workflowDispatchActive" aria-label="Switch current task"><option value="1">Sonar Scan</option><option value="2">Hot Spring Sampling</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:creative-effects-spotlight-stage --><div class="spotlight-lab"><section id="spotlightStage" class="spotlight-stage" tabindex="0" aria-label="Deep-Sea Spotlight Stage; move the pointer or use the arrow keys to control the light source" aria-describedby="spotlightHelp"><div class="spotlight-copy"><span>Deep Sea / LIVE</span><h2>Move attention to the place that truly matters</h2><p id="spotlightHelp">Move the pointer, touch the stage, or use the arrow keys to control the spotlight.</p></div><div class="spotlight-cards" aria-hidden="true"><i></i><i></i><i></i></div></section><aside class="spotlight-controls panel"><span class="eyebrow">SPOTLIGHT STAGE</span><h2>Spotlight Stage</h2><label>Aperture size <input id="spotlightSize" type="range" min="90" max="320" value="190" data-core-bridge="creative-effects-spotlight-stage"><output id="spotlightSizeValue">190px</output></label><label>Ambient brightness <input id="spotlightAmbient" type="range" min="4" max="34" value="12"><output id="spotlightAmbientValue">12%</output></label><button id="spotlightCenter" class="action" type="button">Back to center</button></aside></div><!-- 11DZ_CORE_END --></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>Deep sea / GALLERY 03</strong></figcaption></figure>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:creative-effects-spotlight-stage */
const spotlightStage=document.querySelector('#spotlightStage');const spotlightSize=document.querySelector('#spotlightSize');const spotlightAmbient=document.querySelector('#spotlightAmbient');let spotlightPoint={x:50,y:50};function setSpotlight(x,y){spotlightPoint.x=Math.max(0,Math.min(100,x));spotlightPoint.y=Math.max(0,Math.min(100,y));spotlightStage.style.setProperty('--spot-x',spotlightPoint.x+'%');spotlightStage.style.setProperty('--spot-y',spotlightPoint.y+'%');}function pointerSpotlight(event){const rect=spotlightStage.getBoundingClientRect();setSpotlight((event.clientX-rect.left)/rect.width*100,(event.clientY-rect.top)/rect.height*100);}spotlightStage.addEventListener('pointermove',pointerSpotlight);spotlightStage.addEventListener('pointerdown',pointerSpotlight);spotlightStage.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight','ArrowUp','ArrowDown'].includes(event.key))return;event.preventDefault();setSpotlight(spotlightPoint.x+(event.key==='ArrowRight'?4:event.key==='ArrowLeft'?-4:0),spotlightPoint.y+(event.key==='ArrowDown'?4:event.key==='ArrowUp'?-4:0));announce('Spotlight position '+Math.round(spotlightPoint.x)+'%，'+Math.round(spotlightPoint.y)+'%');});spotlightSize.addEventListener('input',()=>{spotlightStage.style.setProperty('--spot-size',spotlightSize.value+'px');document.querySelector('#spotlightSizeValue').textContent=spotlightSize.value+'px';announce('Aperture size '+spotlightSize.value+' pixels');});spotlightAmbient.addEventListener('input',()=>{spotlightStage.style.setProperty('--ambient',Number(spotlightAmbient.value)/100);document.querySelector('#spotlightAmbientValue').textContent=spotlightAmbient.value+'%';announce('Ambient brightness '+spotlightAmbient.value+'%');});document.querySelector('#spotlightCenter').addEventListener('click',()=>{setSpotlight(50,50);spotlightStage.focus();announce('The spotlight has returned to center stage');});
/* 11DZ_CORE_SCRIPT_END */
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workflowBridgeReset();
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