Duet 设计系统.

<!doctype html><html lang="en"><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Duet travel period interpretation</title><style>*{box-sizing:border-box}body{margin:0;background:#f0f7fa;color:#082a4d;font:16px/1.5 system-ui,sans-serif}main{max-width:1000px;margin:auto;padding:36px 28px}.eyebrow{font-size:12px;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}h1{font-size:36px;line-height:1.2;font-weight:600;margin:0 0 20px}p{margin:0 0 20px}.hero{display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:center;margin-bottom:28px}.art{height:170px;position:relative;overflow:hidden;border-radius:50%;background:#c6e1ee}.sun{position:absolute;top:25px;right:60px;width:36px;height:36px;border-radius:50%;background:white}.hill{position:absolute;background:#0077b3;width:210px;height:170px;bottom:-95px;left:-10px;transform:rotate(25deg);border-radius:24px}.hill.two{left:135px;background:#00619b;bottom:-110px;transform:rotate(-25deg)}.road{position:absolute;width:150px;height:200px;border:12px solid white;border-radius:50%;top:65px;left:95px;transform:rotate(25deg)}.card{background:white;border-radius:4px;padding:28px;box-shadow:0 2px 8px #082a4d0d;display:grid;grid-template-columns:1fr 230px;gap:28px}h2{font-size:24px;line-height:1.3;margin:0 0 20px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}label{display:block;font-weight:600;margin-bottom:8px}input{width:100%;max-width:100%;min-width:0;border:1px solid #909599;border-radius:4px;font:inherit;color:inherit;padding:12px;background:white}input[aria-invalid=true]{border-color:#d61c52}button{background:#0077b3;color:white;border:0;border-radius:20rem;padding:12px 36px;font:600 16px/1.5 system-ui;cursor:pointer}button:hover{background:#004b81}button:focus-visible,input:focus-visible{outline:3px solid #082a4d;outline-offset:3px}.error{font-size:14px;color:#d61c52;min-height:24px;margin:8px 0 20px}.calendar{background:#f0f7fa;border-radius:4px;padding:20px}.calendar strong{display:block;margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;font-size:12px;text-align:center}.grid span{padding:3px 0}.grid .in-range{background:#c6e1ee}.grid .endpoint{background:#0077b3;color:white;border-radius:50%}.caption{font-size:12px;margin:12px 0 0}.result{margin-top:20px;background:#e4f1f7;padding:20px;border-radius:4px}.result:empty{display:none}.boundary{font-size:12px;margin-top:28px}.hint{font-size:14px}@media(max-width:650px){main{padding:24px 16px}.hero{grid-template-columns:1fr}.art{display:none}h1{font-size:28px}.card{grid-template-columns:1fr;padding:20px}.fields{grid-template-columns:1fr;gap:16px}.calendar{max-width:300px;width:100%}button{width:100%;padding:12px 20px}}
</style><main><div class="hero"><div><div class="eyebrow">Travel period planner</div><h1>Make time for a change of scenery.</h1><p>Choose a departure and return date to explore an inclusive calendar-day count.</p></div><div class="art" aria-hidden="true"><div class="sun"></div><div class="hill"></div><div class="hill two"></div><div class="road"></div></div></div><div class="card"><section><h2>When will you travel?</h2><p class="hint" id="hint">Use dates from 1–30 June 2027. This fixed month is for demonstration.</p><form novalidate><div class="fields"><div><label for="start">Departure</label><input id="start" type="date" min="2027-06-01" max="2027-06-30" value="2027-06-10" required aria-describedby="hint error"></div><div><label for="end">Return</label><input id="end" type="date" min="2027-06-01" max="2027-06-30" value="2027-06-17" required aria-describedby="hint error"></div></div><div class="error" id="error" role="alert"></div><button type="submit">Prepare date range</button></form></section><aside class="calendar"><strong>June 2027</strong><div class="grid" id="calendar" aria-hidden="true"></div><p class="caption" id="range-caption">10–17 June selected</p></aside></div><div class="result" id="result" role="status"></div><p class="boundary">Independent HTML interpretation of Duet tokens with native date fields. The calendar image is a non-interactive range overview. No insurance quote, booking or policy is created.</p></main><script>const start=document.querySelector('#start'),end=document.querySelector('#end'),result=document.querySelector('#result'),error=document.querySelector('#error');function valid(){return start.validity.valid&&end.validity.valid&&start.value&&end.value&&end.value>=start.value}function draw(){let days=['M','T','W','T','F','S','S'].map(d=>'<span>'+d+'</span>').join('')+'<span></span>';for(let i=1;i<=30;i++){let iso='2027-06-'+String(i).padStart(2,'0'),range=valid()&&iso>=start.value&&iso<=end.value,edge=range&&(iso===start.value||iso===end.value);days+='<span class="'+(edge?'endpoint':range?'in-range':'')+'">'+i+'</span>'}document.querySelector('#calendar').innerHTML=days;document.querySelector('#range-caption').textContent=valid()?start.value+' to '+end.value:'Choose a valid range to highlight it.'}function changed(){result.textContent='';error.textContent='';start.removeAttribute('aria-invalid');end.removeAttribute('aria-invalid');draw()}[start,end].forEach(el=>el.oninput=changed);document.querySelector('form').onsubmit=e=>{e.preventDefault();let bad;if(!start.value||!start.validity.valid){error.textContent='Choose a departure date in June 2027.';bad=start}else if(!end.value||!end.validity.valid){error.textContent='Choose a return date in June 2027.';bad=end}else if(end.value<start.value){error.textContent='Return must be on or after departure.';bad=end}if(bad){bad.setAttribute('aria-invalid','true');bad.focus();result.textContent='';return}const days=(Date.parse(end.value+'T00:00:00Z')-Date.parse(start.value+'T00:00:00Z'))/86400000+1;result.textContent=days+' calendar '+(days===1?'day':'days')+', including departure and return. Local draft: '+start.value+' to '+end.value+'. No policy created.'};draw();</script></html>

<!doctype html><html lang="en"><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
<title>Date range draft</title>
<link rel="stylesheet" href="https://cdn.duetds.com/api/css/5.1.4/lib/duet.min.css">
<script type="module" src="https://cdn.duetds.com/api/components/10.7.0/lib/duet/duet.esm.js"></script>
<style>main{max-width:680px;margin:auto;padding:28px}.range{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:576px){.range{grid-template-columns:1fr}}</style>
<main><h1>Choose a travel period</h1><p>Demonstration only. No insurance is quoted or purchased.</p><div class="range">
<duet-date-picker id="start" label="Departure" required expand value="2027-06-10" min="2027-06-01" max="2027-06-30"></duet-date-picker>
<duet-date-picker id="end" label="Return" required expand value="2027-06-17" min="2027-06-01" max="2027-06-30"></duet-date-picker></div>
<duet-button id="prepare" variation="primary">Prepare date range</duet-button>
<p id="result" role="status"></p></main><script type="module">
await customElements.whenDefined('duet-date-picker');
const start=document.querySelector('#start'),end=document.querySelector('#end'),result=document.querySelector('#result');
function error(picker){const v=picker.validity;if(!picker.value)return 'Choose a date.';if(v&&!v.valid)return 'Choose a valid date in June 2027.';return '';}
function validate(){start.error=error(start);end.error=error(end);if(!start.error&&!end.error&&end.value<start.value)end.error='Return must be on or after departure.';return !start.error&&!end.error;}
[start,end].forEach(p=>p.addEventListener('duetChange',()=>{result.textContent='';validate()}));
document.querySelector('#prepare').addEventListener('click',async()=>{if(!validate()){await(start.error?start:end).setFocus();return;}const a=Date.parse(start.value+'T00:00:00Z'),b=Date.parse(end.value+'T00:00:00Z');result.textContent=`Local range: ${start.value} to ${end.value}, ${(b-a)/86400000+1} calendar days inclusive. No policy created.`;});
</script></html>