Course Clips Accordion Content List
Complete the collapsible content list in the course clips scenario: with real content, interactive controls, clear status feedback, and cross-size layouts.
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<header class="mast"><div><span class="eyebrow">magazine / Collapsible Content List / BEGINNER</span><h1>Course Clips Accordion Content List</h1><p class="intro">Complete the collapsible content list in the course clips scenario: with real content, interactive controls, clear status feedback, and cross-size layouts.</p></div><span class="scenario">Course Highlights</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Understand the semantic structure, responsive layout, keyboard interaction, and state synchronization of accordion lists.</span></aside><section class="demo" aria-label="Course clips accordion content list interaction area"><div id="similarityShell" class="similarity-shell" data-review-state="focus"><header class="similarity-head"><div><span class="eyebrow">Course Clips / REVIEW STUDIO</span><h2>Accordion content list review workspace</h2><p>Place the main case inside a separate review shell, and additionally record the observation mode, checkpoints, and current conclusion.</p></div><output id="similarityState">Ready to start review</output></header><div class="similarity-layout"><aside class="similarity-console"><fieldset class="similarity-modes"><legend>Review perspective</legend><button class="action primary" type="button" data-review-view="focus">Focus on the main view</button><button class="action" type="button" data-review-view="compare">Checklist</button><button class="action" type="button" data-review-view="audit">Record on Site</button></fieldset><label>Observation Density<input id="similarityDensity" type="range" min="84" max="124" value="100"><output id="similarityDensityValue">100%</output></label><label class="similarity-pin"><input id="similarityPin" type="checkbox"> Pin current checkpoint</label><ol id="similarityChecklist" class="similarity-checklist"><li>Course clip reminder</li><li>Course Clips Collection</li><li>Course Highlights Overview</li><li>Course Clips Plan</li></ol><button id="similarityCapture" class="action primary" type="button">Checkpoint Records</button><ol id="similarityLog" class="similarity-log"><li>Waiting for the first check record</li></ol></aside><section class="similarity-stage"><div id="similarityDeck" class="similarity-deck"><article data-active="true"><span>01</span><strong>Course clip reminder</strong><p>Check whether the status change is visible</p></article><article><span>02</span><strong>Course Clips Collection</strong><p>Confirm keyboard and click entry points are consistent</p></article><article><span>03</span><strong>Course Highlights Overview</strong><p>Check whether the layout falls back on narrow screens</p></article><article><span>04</span><strong>Course Clips Plan</strong><p>Record current review conclusion</p></article></div><div id="similarityCoreShell" class="similarity-core-shell"><div class="workflow-guide"><nav class="guide-rail" aria-label="Course clips guide"><span class="eyebrow">Course Clips GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>Course Clip Collection List</span></li><li data-workflow-guide-step="1"><b>2</b><span>Course Clips Sorting Groups</span></li><li data-workflow-guide-step="2"><b>3</b><span>Course clips published</span></li></ol><div class="guide-actions"><button id="workflowGuideBack" class="action" type="button" disabled>Previous</button><button id="workflowGuideNext" class="action primary" type="button">Complete this step</button></div><div id="workflowGuideProgress" role="progressbar" aria-label="Course Clips Completion" 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">Please complete the related actions for “Course Snapshot Collection List” in the main case.</p><!-- 11DZ_CORE_START:cards-lists-content-accordion-list --><section class="accordion-studio"><header><div><span class="eyebrow">ACCORDION LIST</span><h2>Course snapshot care list</h2><p>Each module can be expanded independently, and the current focus is shown synchronously on the right.</p></div><output id="accordionOpenCount">1 items expanded</output></header><div class="accordion-layout"><div class="accordion-stack"><article><button id="accordionButton0" type="button" data-accordion-card="0" aria-expanded="true" aria-controls="accordionPanel0" data-core-bridge="cards-lists-content-accordion-list"><span><b>Course clip reminder</b><small>Execution Steps</small></span><i aria-hidden="true">＋</i></button><div id="accordionPanel0" role="region" aria-labelledby="accordionButton0"><p>Detailed notes about the course clip reminder will stay here and remain readable within the current page.</p><ul><li>Check local records</li><li>Add key notes</li><li>Prepare the next step</li></ul></div></article><article><button id="accordionButton1" type="button" data-accordion-card="1" aria-expanded="false" aria-controls="accordionPanel1"><span><b>Course Clips Collection</b><small>Additional reminder</small></span><i aria-hidden="true">＋</i></button><div id="accordionPanel1" role="region" aria-labelledby="accordionButton1" hidden><p>Detailed notes for the course clip collection will stay here and remain readable on the current page.</p><ul><li>Check local records</li><li>Add key notes</li><li>Prepare the next step</li></ul></div></article><article><button id="accordionButton2" type="button" data-accordion-card="2" aria-expanded="false" aria-controls="accordionPanel2"><span><b>Course Highlights Overview</b><small>Execution Steps</small></span><i aria-hidden="true">＋</i></button><div id="accordionPanel2" role="region" aria-labelledby="accordionButton2" hidden><p>Detailed notes for the Course Clips overview will stay here and remain readable within the current page.</p><ul><li>Check local records</li><li>Add key notes</li><li>Prepare the next step</li></ul></div></article><article><button id="accordionButton3" type="button" data-accordion-card="3" aria-expanded="false" aria-controls="accordionPanel3"><span><b>Course Clips Plan</b><small>Additional reminder</small></span><i aria-hidden="true">＋</i></button><div id="accordionPanel3" role="region" aria-labelledby="accordionButton3" hidden><p>Detailed notes for the Course Clips plan will stay here and remain readable on the current page.</p><ul><li>Check local records</li><li>Add key notes</li><li>Prepare the next step</li></ul></div></article><article><button id="accordionButton4" type="button" data-accordion-card="4" aria-expanded="false" aria-controls="accordionPanel4"><span><b>Course Highlight Inspiration</b><small>Execution Steps</small></span><i aria-hidden="true">＋</i></button><div id="accordionPanel4" role="region" aria-labelledby="accordionButton4" hidden><p>Detailed notes inspired by course clips will stay here and remain readable within the current page.</p><ul><li>Check local records</li><li>Add key notes</li><li>Prepare the next step</li></ul></div></article></div><aside class="accordion-inspector"><strong id="accordionCurrent">Course clip reminder</strong><p id="accordionCurrentCopy">A summary of the currently focused module will be shown here.</p><ol id="accordionVisible"><li>Course clip reminder</li></ol></aside></div></section><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>View acceptance requirements</summary><ul><li>Course clip collection list needs one visible state change</li><li>Sorting the course clips into groups requires one visible state change</li><li>Course Clips completion release requires one visible state change</li></ul></details><form id="workflowGuideEvidenceForm"><label>This step evidence<textarea id="workflowGuideEvidence" rows="3" placeholder="Record the observed state"></textarea></label><input class="action" type="submit" value="Save evidence"></form><output id="workflowGuideSummary">0 / 3 Steps Complete</output></aside></div></div></section></div></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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const workflowGuideCore=document.querySelector('#workflowCore');const workflowGuideStages=["Course Clip Collection List","Course Clips Sorting Groups","Course clips published"];const workflowGuideState={step:0,completed:new Set(),evidence:new Map(),consumedVersion:0};function workflowGuideDrive(){const step=workflowGuideState.step;workflowGuideCore.dataset.guideStep=String(step);document.querySelector('#workflowGuideInstruction').textContent='Please complete the main example ‘'+workflowGuideStages[step]+'Related actions.”';document.querySelectorAll('[data-workflow-guide-step]').forEach((item,index)=>{item.classList.toggle('is-complete',workflowGuideState.completed.has(index));if(index===step)item.setAttribute('aria-current','step');else item.removeAttribute('aria-current');});document.querySelector('#workflowGuideBack').disabled=step===0;document.querySelector('#workflowGuideNext').textContent=step===workflowGuideStages.length-1?'Save Arrangement':'Complete this step';const percent=Math.round(workflowGuideState.completed.size/workflowGuideStages.length*100);const progress=document.querySelector('#workflowGuideProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';document.querySelector('#workflowGuideSummary').textContent=workflowGuideState.completed.size+' / '+workflowGuideStages.length+' Step complete · '+workflowBridgeSummary();announce('Course clips current step:'+workflowGuideStages[step]);}function workflowGuideAdvance(direction){if(direction>0){const bridge=workflowBridgeActivate();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Please complete the visible state change in the main example first');return;}workflowGuideState.consumedVersion=version;workflowGuideState.completed.add(workflowGuideState.step);announce('Main case changes recorded · '+bridge.summary);}workflowGuideState.step=Math.max(0,Math.min(workflowGuideStages.length-1,workflowGuideState.step+direction));workflowGuideDrive();}document.querySelector('#workflowGuideBack').addEventListener('click',()=>workflowGuideAdvance(-1));document.querySelector('#workflowGuideNext').addEventListener('click',()=>workflowGuideAdvance(1));document.querySelector('#workflowGuideEvidenceForm').addEventListener('submit',event=>{event.preventDefault();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Evidence not saved: the main example has no new changes yet');return;}const text=document.querySelector('#workflowGuideEvidence').value.trim();workflowGuideState.evidence.set(workflowGuideState.step,text||'Visible status check completed');workflowGuideState.completed.add(workflowGuideState.step);workflowGuideState.consumedVersion=version;workflowGuideDrive();announce('Evidence for this step has been saved · '+workflowBridgeSummary());});document.querySelector('#workflowGuideDetails').addEventListener('toggle',event=>announce(event.currentTarget.open?'Acceptance requirements expanded':'Acceptance requirements collapsed'));workflowGuideDrive();
workflowBridgeReset();
const similarityShell=document.querySelector('#similarityShell');const similarityState=document.querySelector('#similarityState');const similarityDensity=document.querySelector('#similarityDensity');const similarityDensityValue=document.querySelector('#similarityDensityValue');const similarityPin=document.querySelector('#similarityPin');const similarityChecklistItems=[...document.querySelectorAll('#similarityChecklist li')];const similarityDeckItems=[...document.querySelectorAll('#similarityDeck article')];const similarityLog=document.querySelector('#similarityLog');const similarityNotes=["Course clip reminder","Course Clips Collection","Course Highlights Overview","Course Clips Plan"];const similarityCore=document.querySelector('#workflowCore');let similarityCaptures=0;function similaritySetActive(index){similarityDeckItems.forEach((item,itemIndex)=>{if(itemIndex===index)item.setAttribute('data-active','true');else item.removeAttribute('data-active');});}function similarityRender(reason){const version=similarityCore?.dataset.workflowVersion||'0';const density=Number(similarityDensity.value);similarityShell.style.setProperty('--similarity-density',String(density));similarityShell.dataset.pinned=String(similarityPin.checked);similarityDensityValue.textContent=density+'%';similarityChecklistItems.forEach((item,index)=>item.classList.toggle('is-done',index<similarityCaptures));similaritySetActive(Math.min(similarityDeckItems.length-1,similarityCaptures%similarityDeckItems.length));similarityState.textContent=reason+' · Core Version '+version+(similarityPin.checked?' · Fixed':'');}document.querySelectorAll('[data-review-view]').forEach(button=>button.addEventListener('click',()=>{document.querySelectorAll('[data-review-view]').forEach(item=>item.classList.toggle('primary',item===button));similarityShell.dataset.reviewState=button.dataset.reviewView;similarityRender('Switched to'+button.textContent);announce('Review view:'+button.textContent);}));similarityDensity.addEventListener('input',()=>{similarityRender('Observation density has been updated');announce('Observation Density '+similarityDensity.value+'%');});similarityPin.addEventListener('change',()=>{similarityRender(similarityPin.checked?'Current checkpoint is fixed':'Current checkpoint unlocked');announce(similarityPin.checked?'Pinned current checkpoint':'Checkpoint Unpinned');});document.querySelector('#similarityCapture').addEventListener('click',()=>{const note=similarityNotes[similarityCaptures%similarityNotes.length];const version=similarityCore?.dataset.workflowVersion||'0';similarityCaptures+=1;const item=document.createElement('li');item.textContent='Checkpoint '+similarityCaptures+' · '+note+' · Core Version '+version;const empty=similarityLog.querySelector('li')?.textContent==='Waiting for the first check record';if(empty)similarityLog.replaceChildren(item);else similarityLog.prepend(item);while(similarityLog.children.length>6)similarityLog.lastElementChild.remove();similarityRender('Checkpoint recorded '+similarityCaptures);announce('Checkpoint recorded '+similarityCaptures+' · '+note);});similarityCore?.addEventListener('focusin',()=>similarityRender('Main view focused'));similarityCore?.addEventListener('click',()=>similarityRender('Main view interaction occurred'));similarityRender('Ready to start review');
</script>
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