夜花园聚光灯舞台
在夜花园场景中完成聚光灯舞台：包含真实内容、可操作控件、清晰状态反馈和跨尺寸布局。
启用 JavaScript 后可编辑、运行和保存此案例。固定源码如下：
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<title>夜花园聚光灯舞台</title>
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<body data-aesthetic="minimal" data-composition="control-deck">
<main class="page">
<header class="mast"><div><span class="eyebrow">minimal / 聚光灯舞台 / BEGINNER</span><h1>夜花园聚光灯舞台</h1><p class="intro">在夜花园场景中完成聚光灯舞台：包含真实内容、可操作控件、清晰状态反馈和跨尺寸布局。</p></div><span class="scenario">夜花园</span></header>
<div class="composition-deck"><div class="deck-bar"><span>CONTROL DECK · 04</span><span>聚光灯舞台</span><span class="deck-lights" aria-hidden="true"><i></i><i></i><i></i></span></div><section class="demo" aria-label="夜花园聚光灯舞台交互区域"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">夜花园 SESSION</span><h2>花园观测计时台</h2></div><output id="workflowSessionClock">00:45</output><label>回合时长<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>秒</span></label><button id="workflowSessionToggle" class="action primary" type="button">开始观测</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="花园观测进度" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:creative-effects-spotlight-stage --><div class="spotlight-lab"><section id="spotlightStage" class="spotlight-stage" tabindex="0" aria-label="夜花园聚光灯舞台；移动指针或使用方向键控制光源" aria-describedby="spotlightHelp"><div class="spotlight-copy"><span>夜花园 / LIVE</span><h2>把注意力移动到真正重要的位置</h2><p id="spotlightHelp">移动指针、触摸舞台，或使用方向键控制聚光灯。</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>聚光灯舞台</h2><label>光圈尺寸 <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>环境亮度 <input id="spotlightAmbient" type="range" min="4" max="34" value="12"><output id="spotlightAmbientValue">12%</output></label><button id="spotlightCenter" class="action" type="button">回到中心</button></aside></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 个交互检查点</strong><ol id="workflowSessionLaps" aria-label="回合记录"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
</main>
<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('聚光灯位置 '+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('光圈尺寸 '+spotlightSize.value+' 像素');});spotlightAmbient.addEventListener('input',()=>{spotlightStage.style.setProperty('--ambient',Number(spotlightAmbient.value)/100);document.querySelector('#spotlightAmbientValue').textContent=spotlightAmbient.value+'%';announce('环境亮度 '+spotlightAmbient.value+'%');});document.querySelector('#spotlightCenter').addEventListener('click',()=>{setSpotlight(50,50);spotlightStage.focus();announce('聚光灯已回到舞台中心');});
/* 11DZ_CORE_SCRIPT_END */
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const workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' 个交互检查点';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'重新开始':'继续回合';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'花园观测回合完成':'回合已暂停');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='暂停回合';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('花园观测回合已开始 · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('键盘操作');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('核心操作 · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
</script>
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