Course Seat Checkout Flow
Complete the checkout step flow in a course seat scenario: includes real content, actionable controls, clear status feedback, and responsive layout across sizes.
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<header class="mast"><div><span class="eyebrow">monochrome / checkout step flow / INTERMEDIATE</span><h1>Course Seat Checkout Flow</h1><p class="intro">Complete the checkout step flow in a course seat scenario: includes real content, actionable controls, clear status feedback, and responsive layout across sizes.</p></div><span class="scenario">Course Seats</span></header>
<figure class="composition-gallery"><section class="demo" aria-label="Interactive area for the course seat checkout step flow"><section id="evidenceShell" class="evidence-shell" data-board-mode="scan"><header class="evidence-head"><div><span class="eyebrow">Course Seats / EVIDENCE BOARD</span><h2>Checkout step flow dashboard</h2><p>Place the main case into an evidence board, using separate observation cards, logs, and mode-switch records to track the current result.</p></div><div class="evidence-tools"><div class="row"><button class="action primary" type="button" data-board-mode="scan">Scan</button><button class="action" type="button" data-board-mode="proof">Verify</button><button class="action" type="button" data-board-mode="handoff">Handoff</button></div><output id="evidenceStatus">Awaiting Sampling</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>Course seat favorites</strong><small>Check whether the status change is visible</small></button><button type="button" data-evidence-card="1" aria-pressed="false"><span>02</span><strong>Course Seat Overview</strong><small>Confirm keyboard and click entry points are consistent</small></button><button type="button" data-evidence-card="2" aria-pressed="false"><span>03</span><strong>Course Seat Plan</strong><small>Check whether the layout falls back on narrow screens</small></button><button type="button" data-evidence-card="3" aria-pressed="false"><span>04</span><strong>Course Seat Inspiration</strong><small>Record current review conclusion</small></button></div><div id="evidenceCoreShell" class="evidence-core-shell"><div class="workflow-guide"><nav class="guide-rail" aria-label="Course Seat Guidance"><span class="eyebrow">Course Seat GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>Course seat demand confirmation</span></li><li data-workflow-guide-step="1"><b>2</b><span>Class Seat Plan Selection</span></li><li data-workflow-guide-step="2"><b>3</b><span>Final submission of course seats</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 Seat 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 operations related to “course seat demand confirmation” in the main example.</p><!-- 11DZ_CORE_START:commerce-service-flows-checkout-steps --><form id="checkoutFlowForm" class="checkout-flow"><section class="checkout-order"><header><span class="eyebrow">ORDER REVIEW</span><h2>Course Seat Checkout Summary</h2><p>First confirm the items actually needed, and the delivery and payment summary will recalculate immediately.</p></header><fieldset><legend>Order items</legend><label><input type="checkbox" name="checkoutItem" value="0" checked data-core-bridge="commerce-service-flows-checkout-steps"><span><b>Course seat favorites</b><small>¥46</small></span></label><label><input type="checkbox" name="checkoutItem" value="1" checked><span><b>Course Seat Overview</b><small>¥75</small></span></label><label><input type="checkbox" name="checkoutItem" value="2"><span><b>Course Seat Plan</b><small>¥104</small></span></label></fieldset></section><section class="checkout-delivery"><span class="eyebrow">FULFILMENT</span><h3>Delivery method</h3><fieldset><legend class="visually-hidden">Choose a delivery method</legend><label><input type="radio" name="checkoutDelivery" value="pickup" checked><span>Pickup In Store<small>Free · Ready today</small></span></label><label><input type="radio" name="checkoutDelivery" value="standard"><span>Standard delivery<small>¥12 · within two days</small></span></label><label><input type="radio" name="checkoutDelivery" value="priority"><span>Priority delivery<small>¥28 · Same-day delivery</small></span></label></fieldset><label>Contact email<input name="checkoutEmail" type="email" autocomplete="email" required placeholder="name@example.com"></label><label>Delivery notes<textarea name="checkoutNote" rows="3" maxlength="120"></textarea></label></section><aside class="checkout-payment"><span class="eyebrow">LOCAL PAYMENT PREVIEW</span><h3>Confirm summary</h3><dl><div><dt>item count</dt><dd id="checkoutItemCount">0</dd></div><div><dt>Item amount</dt><dd id="checkoutSubtotal">¥0</dd></div><div><dt>Delivery fee</dt><dd id="checkoutDeliveryFee">¥0</dd></div><div><dt>Estimated total</dt><dd id="checkoutGrandTotal">¥0</dd></div></dl><label>Payment Demo<select name="checkoutPayment"><option>Pay in store</option><option>Bank Card Demo</option><option>Enterprise Monthly Billing</option></select></label><label class="checkout-consent"><input name="checkoutConsent" type="checkbox" required> I have checked the project and delivery information</label><button class="action primary" type="submit">Confirm checkout locally</button><button class="action" type="reset">Clear checkout selections</button><output id="checkoutReceipt" aria-live="polite">Not confirmed yet</output></aside></form><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>View acceptance requirements</summary><ul><li>Course seat demand confirmation needs a visible state change</li><li>Course seat plan selection needs a visible state change at least once</li><li>Final submission for course seats 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><aside class="evidence-rail"><label>Canvas Zoom<input id="evidenceZoom" type="range" min="88" max="128" value="100"><output id="evidenceZoomValue">100%</output></label><label>Current sample<select id="evidenceStep"><option value="0">Course seat favorites</option><option value="1">Course Seat Overview</option><option value="2">Course Seat Plan</option><option value="3">Course Seat Inspiration</option></select></label><ul id="evidenceChecklist" class="evidence-checklist"><li>Course seat favorites</li><li>Course Seat Overview</li><li>Course Seat Plan</li><li>Course Seat Inspiration</li></ul><button id="evidenceCapture" class="action primary" type="button">Write evidence</button><ol id="evidenceLog" class="evidence-log"><li>Evidence not yet entered</li></ol></aside></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>Class seats / GALLERY 03</strong></figcaption></figure>
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/* 11DZ_CORE_SCRIPT_START:commerce-service-flows-checkout-steps */
const checkoutFlowForm=document.querySelector('#checkoutFlowForm');const checkoutPrices=[46,75,104];const checkoutFees={pickup:0,standard:12,priority:28};const checkoutState={items:new Set(),delivery:'pickup',payment:'Pay in store',confirmed:false};function readCheckoutState(){checkoutState.items=new Set([...checkoutFlowForm.querySelectorAll('[name="checkoutItem"]:checked')].map(input=>Number(input.value)));checkoutState.delivery=new FormData(checkoutFlowForm).get('checkoutDelivery')||'pickup';checkoutState.payment=new FormData(checkoutFlowForm).get('checkoutPayment')||'Pay in store';}function renderCheckout(){readCheckoutState();const subtotal=[...checkoutState.items].reduce((sum,index)=>sum+checkoutPrices[index],0);const deliveryFee=checkoutFees[checkoutState.delivery];document.querySelector('#checkoutItemCount').textContent=checkoutState.items.size+' Item';document.querySelector('#checkoutSubtotal').textContent='¥'+subtotal;document.querySelector('#checkoutDeliveryFee').textContent='¥'+deliveryFee;document.querySelector('#checkoutGrandTotal').textContent='¥'+(subtotal+deliveryFee);announce('Checkout summary updated, estimated '+(subtotal+deliveryFee)+' yuan');return subtotal+deliveryFee;}checkoutFlowForm.addEventListener('change',event=>{checkoutState.confirmed=false;document.querySelector('#checkoutReceipt').textContent='The information has changed. Please check it again.';renderCheckout();if(event.target.name==='checkoutDelivery')document.querySelector('[name="checkoutEmail"]').focus();});checkoutFlowForm.addEventListener('input',event=>{if(event.target.name==='checkoutNote')document.querySelector('#checkoutReceipt').textContent='Notes '+event.target.value.length+' / 120 min';});checkoutFlowForm.addEventListener('submit',event=>{event.preventDefault();if(!checkoutFlowForm.reportValidity())return;if(!checkoutState.items.size){document.querySelector('#checkoutReceipt').textContent='Please keep at least one order item';return;}const total=renderCheckout();checkoutState.confirmed=true;document.querySelector('#checkoutReceipt').textContent='Local settlement confirmed · '+checkoutState.payment+' · ¥'+total;announce('Course seat checkout has been confirmed locally');});checkoutFlowForm.addEventListener('reset',()=>{queueMicrotask(()=>{checkoutState.items.clear();checkoutState.confirmed=false;document.querySelector('#checkoutReceipt').textContent='Checkout selection has been reset';renderCheckout();});});renderCheckout();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"commerce-service-flows-checkout-steps","selector":"[data-core-bridge=\"commerce-service-flows-checkout-steps\"]","mode":"toggle","key":" "};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · Core Version '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.setAttribute('aria-keyshortcuts',workflowBridgeSpec.key===' '?'Space':workflowBridgeSpec.key);const workflowBridgeToggleKeyMatches=event=>event.key===workflowBridgeSpec.key||event.key==='Spacebar'||event.code==='Space';workflowBridgeControl.addEventListener('keydown',event=>{if(!workflowBridgeToggleKeyMatches(event))return;event.preventDefault();});workflowBridgeControl.addEventListener('keyup',event=>{if(!workflowBridgeToggleKeyMatches(event))return;event.preventDefault();workflowBridgeControl.click();});workflowBridgeControl.addEventListener("change",workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();workflowBridgeControl.click();const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowGuideCore=document.querySelector('#workflowCore');const workflowGuideStages=["Course seat demand confirmation","Class Seat Plan Selection","Final submission of course seats"];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?'Confirmation Flow':'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 seat 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 evidenceShell=document.querySelector('#evidenceShell');const evidenceStatus=document.querySelector('#evidenceStatus');const evidenceZoom=document.querySelector('#evidenceZoom');const evidenceZoomValue=document.querySelector('#evidenceZoomValue');const evidenceStep=document.querySelector('#evidenceStep');const evidenceChecklistItems=[...document.querySelectorAll('#evidenceChecklist li')];const evidenceCards=[...document.querySelectorAll('[data-evidence-card]')];const evidenceLog=document.querySelector('#evidenceLog');const evidenceModeButtons=[...evidenceShell.querySelectorAll('button[data-board-mode]')];const evidenceNotes=["Course seat favorites","Course Seat Overview","Course Seat Plan","Course Seat Inspiration"];const evidenceCore=document.querySelector('#workflowCore');let evidenceCaptures=0;function evidenceSetCard(index){evidenceCards.forEach((card,cardIndex)=>{const active=cardIndex===index;card.setAttribute('aria-pressed',String(active));});evidenceChecklistItems.forEach((item,itemIndex)=>{item.classList.toggle('is-active',itemIndex===index);item.classList.toggle('is-done',itemIndex<evidenceCaptures);});}function evidenceRender(reason){const version=evidenceCore?.dataset.workflowVersion||'0';const zoom=Number(evidenceZoom.value);const active=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);evidenceShell.style.setProperty('--evidence-zoom',String(zoom));evidenceZoomValue.textContent=zoom+'%';evidenceSetCard(active);evidenceStatus.textContent=reason+' · Core Version '+version;}evidenceModeButtons.forEach(button=>button.addEventListener('click',()=>{evidenceModeButtons.forEach(item=>item.classList.toggle('primary',item===button));evidenceShell.dataset.boardMode=button.dataset.boardMode;evidenceRender('Switched to'+button.textContent);announce('Evidence mode:'+button.textContent);}));evidenceCards.forEach((card,index)=>card.addEventListener('click',()=>{evidenceStep.value=String(index);evidenceRender('Switched to observation card');announce('Observation card:'+evidenceNotes[index]);}));evidenceZoom.addEventListener('input',()=>{evidenceRender('Canvas zoom updated');announce('Observe scaling '+evidenceZoom.value+'%');});evidenceStep.addEventListener('change',()=>{const index=Number(evidenceStep.value)||0;evidenceRender('Sampling switched');announce('Current sample:'+evidenceNotes[index]);});document.querySelector('#evidenceCapture').addEventListener('click',()=>{const index=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);const note=evidenceNotes[index];const version=evidenceCore?.dataset.workflowVersion||'0';evidenceCaptures+=1;const item=document.createElement('li');item.textContent='Evidence '+evidenceCaptures+' · '+note+' · Core Version '+version;const empty=evidenceLog.querySelector('li')?.textContent==='Evidence not yet entered';if(empty)evidenceLog.replaceChildren(item);else evidenceLog.prepend(item);while(evidenceLog.children.length>6)evidenceLog.lastElementChild.remove();evidenceRender('Evidence written '+evidenceCaptures);announce('Evidence written '+evidenceCaptures+' · '+note);});evidenceCore?.addEventListener('focusin',()=>evidenceRender('Main Case Gets Focus'));evidenceCore?.addEventListener('click',()=>evidenceRender('Primary example interaction'));evidenceRender('Awaiting Sampling');
</script>
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