创意视觉效果
深海彩纸爆发效果

在深海场景中完成彩纸爆发效果：包含真实内容、可操作控件、清晰状态反馈和跨尺寸布局。
创意视觉效果彩纸爆发效果HTMLCanvasJavaScript
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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  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>深海彩纸爆发效果</title>
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<body data-aesthetic="minimal" data-composition="control-deck">
  <main class="page">
    <header class="mast"><div><span class="eyebrow">minimal / 彩纸爆发效果 / INTERMEDIATE</span><h1>深海彩纸爆发效果</h1><p class="intro">在深海场景中完成彩纸爆发效果：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">深海</span></header>
    <div class="composition-deck"><div class="deck-bar"><span>CONTROL DECK · 04</span><span>彩纸爆发效果</span><span class="deck-lights" aria-hidden="true"><i></i><i></i><i></i></span></div><section class="demo" aria-label="深海彩纸爆发效果交互区域"><div class="workflow-dispatch"><aside class="dispatch-console"><span class="eyebrow">深海 DISPATCH</span><h2>潜航任务调度台</h2><form id="workflowDispatchForm"><label>任务类型<select id="workflowDispatchKind"><option>声呐扫描</option><option>热泉采样</option><option>返航信标</option></select></label><label>潜航深度<input id="workflowDispatchAmount" type="number" min="1" max="9999" value="36"><span>米</span></label><fieldset><legend>处理优先级</legend><label><input type="radio" name="workflowPriority" value="normal" checked>常规</label><label><input type="radio" name="workflowPriority" value="urgent">紧急</label></fieldset><button class="action primary" type="submit">执行潜航</button></form><label>当前任务<select id="workflowDispatchActive" aria-label="切换当前任务"><option value="1">声呐扫描</option><option value="2">热泉采样</option></select></label><output id="workflowDispatchSummary">等待调度</output></aside><section id="workflowCore" class="workflow-core dispatch-workbench" data-dispatch-priority="normal"><!-- 11DZ_CORE_START:creative-effects-confetti-burst --><div class="confetti-lab"><section class="confetti-stage"><canvas id="confettiCanvas" width="960" height="460" aria-label="深海彩纸爆发画布" aria-describedby="confettiHelp">当前浏览器不支持 Canvas。</canvas><div><span>深海</span><h2>让值得庆祝的时刻落满颜色</h2><p id="confettiHelp">点击按钮或画布任意位置触发彩纸。</p></div></section><aside class="confetti-controls panel"><span class="eyebrow">CONFETTI BURST</span><h2>彩纸爆发效果</h2><label>爆发数量 <input id="confettiAmount" type="range" min="20" max="120" value="70" data-core-bridge="creative-effects-confetti-burst"><output id="confettiAmountValue">70</output></label><label>重力强度 <input id="confettiGravity" type="range" min="2" max="16" value="8"><output id="confettiGravityValue">8</output></label><button id="confettiBurst" class="action primary" type="button">释放彩纸</button><button id="confettiClear" class="action" type="button">清空画布</button></aside></div><!-- 11DZ_CORE_END --></section></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-confetti-burst */
const confettiCanvas=document.querySelector('#confettiCanvas');const confettiContext=confettiCanvas.getContext('2d');const confettiAmount=document.querySelector('#confettiAmount');const confettiGravity=document.querySelector('#confettiGravity');const confettiReduced=matchMedia('(prefers-reduced-motion: reduce)').matches;let confettiPieces=[];let confettiFrame=0;const confettiColors=['#fde047','#fb7185','#38bdf8','#34d399','#c084fc'];function sizeConfettiCanvas(){const rect=confettiCanvas.getBoundingClientRect();const ratio=Math.min(2,devicePixelRatio||1);confettiCanvas.width=Math.max(320,Math.round(rect.width*ratio));confettiCanvas.height=Math.max(280,Math.round(rect.height*ratio));confettiContext.setTransform(ratio,0,0,ratio,0,0);}function burstConfetti(x,y){const count=Number(confettiAmount.value);for(let index=0;index<count;index+=1){const angle=Math.PI*2*index/count+(index%7)*.08;const speed=2.8+(index%13)*.22;confettiPieces.push({x,y,vx:Math.cos(angle)*speed,vy:Math.sin(angle)*speed-4.8,rotation:index*.7,spin:(index%2?1:-1)*.08,w:5+index%7,h:9+index%8,color:confettiColors[index%confettiColors.length],life:1});}cancelAnimationFrame(confettiFrame);drawConfetti();announce('释放了 '+count+' 片彩纸');}function drawConfetti(){const rect=confettiCanvas.getBoundingClientRect();confettiContext.clearRect(0,0,rect.width,rect.height);confettiPieces.forEach(piece=>{if(!confettiReduced){piece.vy+=Number(confettiGravity.value)*.012;piece.x+=piece.vx;piece.y+=piece.vy;piece.rotation+=piece.spin;piece.life-=.004;}confettiContext.save();confettiContext.globalAlpha=Math.max(0,piece.life);confettiContext.translate(piece.x,piece.y);confettiContext.rotate(piece.rotation);confettiContext.fillStyle=piece.color;confettiContext.fillRect(-piece.w/2,-piece.h/2,piece.w,piece.h);confettiContext.restore();});confettiPieces=confettiPieces.filter(piece=>piece.life>0&&piece.y<rect.height+40);if(confettiPieces.length&&!confettiReduced)confettiFrame=requestAnimationFrame(drawConfetti);}document.querySelector('#confettiBurst').addEventListener('click',()=>burstConfetti(confettiCanvas.clientWidth/2,confettiCanvas.clientHeight*.56));confettiCanvas.addEventListener('pointerdown',event=>{const rect=confettiCanvas.getBoundingClientRect();burstConfetti(event.clientX-rect.left,event.clientY-rect.top);});document.querySelector('#confettiClear').addEventListener('click',()=>{confettiPieces=[];cancelAnimationFrame(confettiFrame);drawConfetti();announce('彩纸画布已清空');});confettiAmount.addEventListener('input',()=>{document.querySelector('#confettiAmountValue').textContent=confettiAmount.value;});confettiGravity.addEventListener('input',()=>{document.querySelector('#confettiGravityValue').textContent=confettiGravity.value;announce('彩纸重力 '+confettiGravity.value);});addEventListener('resize',sizeConfettiCanvas,{passive:true});sizeConfettiCanvas();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"creative-effects-confetti-burst","selector":"[data-core-bridge=\"creative-effects-confetti-burst\"]","mode":"range","key":"ArrowRight"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · 核心版本 '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("input",workflowBridgeScheduleCommit);workflowBridgeControl.addEventListener('change',workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowDispatchCore=document.querySelector('#workflowCore');const workflowDispatchForm=document.querySelector('#workflowDispatchForm');const workflowDispatchSelect=document.querySelector('#workflowDispatchActive');const workflowDispatchJobs=new Map([["1",{"label":"声呐扫描","amount":12,"priority":"normal","touches":0}],["2",{"label":"热泉采样","amount":21,"priority":"urgent","touches":0}]]);let workflowDispatchSerial=workflowDispatchJobs.size;function workflowDispatchDrive(job,activate=false){workflowDispatchCore.dataset.dispatchPriority=job.priority;workflowDispatchCore.style.setProperty('--dispatch-load',Math.min(.95,.16+job.amount/120));const bridge=activate?workflowBridgeActivate():{changed:false,summary:workflowBridgeSummary()};document.querySelector('#workflowDispatchSummary').textContent=job.label+' · '+job.amount+' 米 · '+bridge.summary;announce('潜航任务当前任务：'+job.label);}function workflowDispatchRender(activeId,activate=false){workflowDispatchSelect.replaceChildren(...[...workflowDispatchJobs].map(([id,job])=>{const option=document.createElement('option');option.value=id;option.textContent=job.label+(job.priority==='urgent'?' · 紧急':'');return option;}));workflowDispatchSelect.value=activeId;workflowDispatchDrive(workflowDispatchJobs.get(activeId),activate);}workflowDispatchForm.addEventListener('submit',event=>{event.preventDefault();const data=new FormData(workflowDispatchForm);const id=String(++workflowDispatchSerial);workflowDispatchJobs.set(id,{label:document.querySelector('#workflowDispatchKind').value,amount:Math.max(1,Number(document.querySelector('#workflowDispatchAmount').value)||1),priority:data.get('workflowPriority'),touches:0});workflowDispatchRender(id,true);});workflowDispatchSelect.addEventListener('change',()=>workflowDispatchDrive(workflowDispatchJobs.get(workflowDispatchSelect.value),true));workflowDispatchCore.addEventListener('focusin',()=>{const job=workflowDispatchJobs.get(workflowDispatchSelect.value);if(!job)return;job.touches+=1;document.querySelector('#workflowDispatchSummary').textContent=job.label+' · '+job.amount+' 米 · '+workflowBridgeSummary();});workflowDispatchRender('1',false);
workflowBridgeReset();
  </script>
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