纸上空间互动粒子场
在纸上空间场景中完成互动粒子场：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>纸上空间互动粒子场</title>
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<body data-aesthetic="dashboard" data-composition="field-index">
<main class="page">
<header class="mast"><div><span class="eyebrow">dashboard / 互动粒子场 / ADVANCED</span><h1>纸上空间互动粒子场</h1><p class="intro">在纸上空间场景中完成互动粒子场：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">纸上空间</span></header>
<div class="composition-index"><section class="demo" aria-label="纸上空间互动粒子场交互区域"><div class="workflow-guide"><nav class="guide-rail" aria-label="纸艺步骤引导"><span class="eyebrow">纸上空间 GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>折叠结构</span></li><li data-workflow-guide-step="1"><b>2</b><span>镂空结构</span></li><li data-workflow-guide-step="2"><b>3</b><span>套色结构</span></li></ol><div class="guide-actions"><button id="workflowGuideBack" class="action" type="button" disabled>上一步</button><button id="workflowGuideNext" class="action primary" type="button">完成本步</button></div><div id="workflowGuideProgress" role="progressbar" aria-label="纸艺步骤完成度" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div></nav><section id="workflowCore" class="workflow-core guide-core" data-guide-step="0" aria-describedby="workflowGuideInstruction"><p id="workflowGuideInstruction">请在主案例中完成“折叠结构”相关操作。</p><!-- 11DZ_CORE_START:creative-effects-particle-field --><div class="particle-field-lab"><canvas id="particleCanvas" width="960" height="480" tabindex="0" aria-label="纸上空间互动粒子场；移动指针或使用方向键吸引粒子" aria-describedby="particleHelp">当前浏览器不支持 Canvas。</canvas><aside class="particle-controls panel"><span class="eyebrow">PARTICLE FIELD</span><h2>互动粒子场</h2><p id="particleHelp" class="muted">在画布中移动指针，或聚焦画布后使用方向键移动吸引点。</p><label>粒子数量 <input id="particleAmount" type="range" min="24" max="110" value="64" data-core-bridge="creative-effects-particle-field"><output id="particleAmountValue">64</output></label><label>吸引强度 <input id="particlePull" type="range" min="0" max="100" value="45"><output id="particlePullValue">45%</output></label><div class="row"><button id="particleReset" class="action primary" type="button">重置粒子</button><button id="particlePause" class="action" type="button" aria-pressed="false">暂停</button></div></aside></div><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>查看验收要求</summary><ul><li>折叠结构需要一次可见状态变化</li><li>镂空结构需要一次可见状态变化</li><li>套色结构需要一次可见状态变化</li></ul></details><form id="workflowGuideEvidenceForm"><label>本步证据<textarea id="workflowGuideEvidence" rows="3" placeholder="记录观察到的状态"></textarea></label><input class="action" type="submit" value="保存证据"></form><output id="workflowGuideSummary">0 / 3 步完成</output></aside></div><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>纸上空间 FIELD INDEX</span></aside></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
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workflowBridgeReset();
</script>
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