课程进度按钮形态过渡
在课程进度场景中完成按钮形态过渡：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>课程进度按钮形态过渡</title>
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<header class="mast"><div><span class="eyebrow">magazine / 按钮形态过渡 / BEGINNER</span><h1>课程进度按钮形态过渡</h1><p class="intro">在课程进度场景中完成按钮形态过渡：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">课程进度</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>掌握按钮形态过渡的语义结构、响应式编排、键盘操作与状态同步。</span></aside><section class="demo" aria-label="课程进度按钮形态过渡交互区域"><section id="evidenceShell" class="evidence-shell" data-board-mode="scan"><header class="evidence-head"><div><span class="eyebrow">课程进度 / EVIDENCE BOARD</span><h2>按钮形态过渡观测面板</h2><p>把主案例放入证据看板，用单独的观察卡片、日志和模式切换记录当前结果。</p></div><div class="evidence-tools"><div class="row"><button class="action primary" type="button" data-board-mode="scan">扫描</button><button class="action" type="button" data-board-mode="proof">核验</button><button class="action" type="button" data-board-mode="handoff">交接</button></div><output id="evidenceStatus">等待采样</output></div></header><div class="evidence-body"><section class="evidence-stage"><div class="evidence-ribbon"><button type="button" data-evidence-card="0" aria-pressed="true"><span>01</span><strong>课程进度灵感</strong><small>检查状态变化是否可见</small></button><button type="button" data-evidence-card="1" aria-pressed="false"><span>02</span><strong>课程进度记录</strong><small>确认键盘与点击入口一致</small></button><button type="button" data-evidence-card="2" aria-pressed="false"><span>03</span><strong>课程进度协作</strong><small>观察布局在窄屏下是否回退</small></button><button type="button" data-evidence-card="3" aria-pressed="false"><span>04</span><strong>课程进度</strong><small>记录当前复核结论</small></button></div><div id="evidenceCoreShell" class="evidence-core-shell"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">课程进度 SESSION</span><h2>课程进度计时台</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">开始更新状态</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="课程进度" 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:animation-microinteractions-button-morph --><div class="morph-button-demo panel"><span class="eyebrow">BUTTON MORPH</span><h2>课程进度提交动作</h2><button id="morphButton" class="morph-button" type="button" data-core-bridge="animation-microinteractions-button-morph"><span>提交任务</span><i aria-hidden="true"></i></button><p>按钮会从宽按钮变为加载圆环，再展开为完成状态。</p></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></div></section><aside class="evidence-rail"><label>画布缩放<input id="evidenceZoom" type="range" min="88" max="128" value="100"><output id="evidenceZoomValue">100%</output></label><label>当前取样<select id="evidenceStep"><option value="0">课程进度灵感</option><option value="1">课程进度记录</option><option value="2">课程进度协作</option><option value="3">课程进度</option></select></label><ul id="evidenceChecklist" class="evidence-checklist"><li>课程进度灵感</li><li>课程进度记录</li><li>课程进度协作</li><li>课程进度</li></ul><button id="evidenceCapture" class="action primary" type="button">写入证据</button><ol id="evidenceLog" class="evidence-log"><li>尚未写入证据</li></ol></aside></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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