社区门户分屏叙事布局
在社区门户场景中完成分屏叙事布局：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>社区门户分屏叙事布局</title>
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<body data-aesthetic="terminal" data-composition="split-note">
<main class="page">
<header class="mast"><div><span class="eyebrow">terminal / 分屏叙事布局 / BEGINNER</span><h1>社区门户分屏叙事布局</h1><p class="intro">在社区门户场景中完成分屏叙事布局：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">社区门户</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>掌握分屏叙事布局的语义结构、响应式编排、键盘操作与状态同步。</span></aside><section class="demo" aria-label="社区门户分屏叙事布局交互区域"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">社区门户 SESSION</span><h2>社区会话计时台</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">开始会话</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="社区会话进度" 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:layouts-responsive-split-screen --><div class="split-layout-demo"><label>分隔位置 <input id="splitRatio" type="range" min="30" max="70" value="50" data-core-bridge="layouts-responsive-split-screen"></label><div id="splitCanvas" class="split-canvas"><section><span class="eyebrow">STORY</span><h2>社区门户的左侧叙事</h2><p>文字区域使用可控比例承载标题、说明与行动入口。</p></section><aside><strong>社区门户概览</strong><span>视觉区域</span></aside></div></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>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
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workflowBridgeReset();
</script>
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