珊瑚长廊彩纸爆发效果
在珊瑚长廊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。
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>珊瑚长廊彩纸爆发效果</title>
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<main class="page">
<header class="mast"><div><span class="eyebrow">paper / 彩纸爆发效果 / BEGINNER</span><h1>珊瑚长廊彩纸爆发效果</h1><p class="intro">在珊瑚长廊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">珊瑚长廊</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>掌握彩纸爆发效果的语义结构、响应式编排、键盘操作与状态同步。</span></aside><section class="demo" aria-label="珊瑚长廊彩纸爆发效果交互区域"><div class="workflow-guide"><nav class="guide-rail" aria-label="珊瑚长廊引导"><span class="eyebrow">珊瑚长廊 GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>珊瑚长廊基础层次</span></li><li data-workflow-guide-step="1"><b>2</b><span>珊瑚长廊动态层次</span></li><li data-workflow-guide-step="2"><b>3</b><span>珊瑚长廊展示层次</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="珊瑚长廊完成度" 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“珊瑚长廊基础层次”相关操作。</p><!-- 11DZ_CORE_START:creative-effects-confetti-burst --><div class="confetti-lab"><section class="confetti-stage"><canvas id="confettiCanvas" width="960" height="460" aria-label="珊瑚长廊彩纸爆发画布" aria-describedby="confettiHelp">当前浏览器不支持 Canvas。</canvas><div><span>珊瑚长廊</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><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>查看验收要求</summary><ul><li>珊瑚长廊基础层次需要一次可见状态变化</li><li>珊瑚长廊动态层次需要一次可见状态变化</li><li>珊瑚长廊展示层次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></div>
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