Pure CSS 设计系统.

<main class="catalog"><header><p class="eyebrow">PURE CSS / LENDING DESK</p><h1>A small equipment catalog.</h1><p>Find a kit, select available items, and review the local selection.</p></header><div class="pure-g"><aside class="pure-u-1 pure-u-md-1-4"><div class="sidebar"><h2>Refine the list</h2><form class="pure-form pure-form-stacked" id="filters"><label for="query">Equipment name</label><input id="query" type="search" placeholder="Camera, recorder…"><label for="kind">Category</label><select id="kind"><option value="all">All categories</option><option>Camera</option><option>Audio</option><option>Lighting</option></select><label class="pure-checkbox"><input id="available" type="checkbox"> Available only</label><button class="pure-button" type="reset">Clear filters</button></form><div class="selection"><strong id="selected-count">0 items selected</strong><p>Selection is kept when a filter hides a row.</p><button id="clear-selection" class="pure-button" disabled>Clear selection</button></div></div></aside><section class="pure-u-1 pure-u-md-3-4"><div class="results"><p id="count" role="status"></p><div class="table-scroll" tabindex="0" role="region" aria-label="Equipment table, scroll horizontally on narrow screens"><table class="pure-table pure-table-horizontal"><caption>Studio lending kits — local sample records</caption><thead><tr><th scope="col">Select</th><th scope="col" aria-sort="ascending"><button id="sort" class="sort">Equipment ↑</button></th><th scope="col">Category</th><th scope="col">Availability</th></tr></thead><tbody id="rows"></tbody></table></div><p id="empty" hidden>No matching equipment. Clear the filters to see all six kits.</p><section class="summary" aria-labelledby="selection-title"><h2 id="selection-title">Selected for review</h2><ul id="selection-list"><li>No equipment selected.</li></ul><p>This is a browsing example. Selecting a kit does not reserve it.</p></section></div></section></div></main>

const data=[{id:'c1',name:'Compact camera kit',kind:'Camera',available:true},{id:'c2',name:'Cinema camera kit',kind:'Camera',available:false},{id:'a1',name:'Field recorder',kind:'Audio',available:true},{id:'a2',name:'Wireless microphone pair',kind:'Audio',available:true},{id:'l1',name:'Portable LED panel',kind:'Lighting',available:false},{id:'l2',name:'Softbox lighting kit',kind:'Lighting',available:true}];const selected=new Set();let ascending=true;const $=id=>document.getElementById(id);
function selection(){ $('selected-count').textContent=selected.size+(selected.size===1?' item selected':' items selected');$('clear-selection').disabled=!selected.size;const list=$('selection-list');list.replaceChildren();for(const x of data.filter(x=>selected.has(x.id))){const li=document.createElement('li');li.textContent=x.name;list.append(li);}if(!selected.size){const li=document.createElement('li');li.textContent='No equipment selected.';list.append(li);}}
function render(){const query=$('query').value.toLowerCase().trim();const visible=data.filter(x=>x.name.toLowerCase().includes(query)&&($('kind').value==='all'||x.kind===$('kind').value)&&(!$('available').checked||x.available)).sort((a,b)=>(ascending?1:-1)*a.name.localeCompare(b.name));$('count').textContent=visible.length+' of '+data.length+' kits shown';$('empty').hidden=visible.length!==0;$('rows').replaceChildren();for(const x of visible){const tr=document.createElement('tr');const choice=document.createElement('td');const input=document.createElement('input');input.type='checkbox';input.disabled=!x.available;input.checked=selected.has(x.id);input.setAttribute('aria-label','Select '+x.name);input.addEventListener('change',()=>{input.checked?selected.add(x.id):selected.delete(x.id);selection()});choice.append(input);tr.append(choice);for(const value of [x.name,x.kind,x.available?'Available':'On loan']){const td=document.createElement('td');td.textContent=value;tr.append(td);}$('rows').append(tr);}selection();}
$('filters').addEventListener('input',render);$('filters').addEventListener('submit',e=>e.preventDefault());$('filters').addEventListener('reset',()=>setTimeout(render,0));$('sort').addEventListener('click',()=>{ascending=!ascending;$('sort').textContent='Equipment '+(ascending?'↑':'↓');$('sort').parentElement.setAttribute('aria-sort',ascending?'ascending':'descending');render()});$('clear-selection').addEventListener('click',()=>{selected.clear();render()});render();

*{box-sizing:border-box}body{font:16px/1.5 Arial,Helvetica,sans-serif;color:#263238;background:#fff}.catalog{max-width:1120px;margin:auto;padding:32px 24px}h1{font-size:34px;line-height:1.15;letter-spacing:-.03em;margin:12px 0}h2{font-size:18px;line-height:1.3}.eyebrow{font-size:11px;letter-spacing:.12em;font-weight:700;color:#435c68}header{border-bottom:3px solid #263238;padding-bottom:24px;margin-bottom:24px}.pure-g [class*=pure-u]{font-family:Arial,Helvetica,sans-serif}.sidebar{padding-right:24px}.results{padding-left:24px;border-left:1px solid #d7dfe3}.pure-form input[type=search],.pure-form select{width:100%;max-width:100%}.pure-form label{margin-top:16px}.selection{border-top:1px solid #d7dfe3;margin-top:28px;padding-top:20px;font-size:14px}.table-scroll{overflow:auto}table{width:100%;min-width:540px}.pure-table caption{text-align:left;font-style:normal;color:#52616a}.sort{border:0;background:none;padding:0;color:inherit;text-align:left;font-weight:700;cursor:pointer}.summary{padding:16px 20px;background:#f3f6f7;margin-top:24px}.summary p{font-size:14px;color:#52616a}.pure-button:focus-visible,.sort:focus-visible,.table-scroll:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #0078e7;outline-offset:3px}#empty{padding:20px;border:1px dashed #83919a}@media(max-width:767px){.catalog{padding:24px 16px}h1{font-size:28px}.sidebar{padding:0}.results{padding:24px 0 0;border-left:0}.selection{margin-bottom:24px}}