旅行计划双值区间控制
在旅行计划场景中完成双值区间控制：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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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>旅行计划双值区间控制</title>
<style>
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button,input,select,textarea { color:inherit; font:inherit; }
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.panel{padding:26px;border:1px solid var(--line);border-radius:2px;background:var(--paper)}.stack{display:grid;gap:28px}.row{display:flex;gap:20px;flex-wrap:wrap}.action{padding:9px 2px;border:0;border-bottom:2px solid var(--line);background:transparent}.action.primary,.action.is-active{border-color:var(--accent);color:var(--accent)}.muted{font-size:14px;line-height:1.9}.status{min-height:20px;margin-top:28px;font-size:13px}.metric{font-size:clamp(40px,9vw,88px);font-weight:500;letter-spacing:-.06em}.meter{height:2px;background:var(--line)}.meter>i{display:block;height:100%;background:var(--accent)}.chip{font-size:11px;letter-spacing:.12em;text-transform:uppercase}
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.dual-range-demo{display:grid;gap:24px;max-width:820px;margin:auto;padding:clamp(24px,5vw,54px);border:1px solid var(--line);border-radius:30px;background:var(--paper)}.dual-range-demo h2{margin:.2em 0;font-size:clamp(32px,6vw,64px)}.dual-range-readout{display:flex;justify-content:center;gap:18px;align-items:center}.dual-range-readout output{display:grid;min-width:96px;height:72px;place-items:center;border:2px solid var(--ink);border-radius:16px;font-size:30px;font-weight:900}.dual-track{position:relative;height:34px;background:linear-gradient(90deg,var(--line) var(--from),var(--accent) var(--from) var(--to),var(--line) var(--to));border-radius:999px}.dual-track input{position:absolute;inset:0;width:100%;margin:0;pointer-events:none;background:transparent;appearance:none}.dual-track input::-webkit-slider-thumb{width:28px;height:28px;border:4px solid var(--paper);border-radius:50%;background:var(--ink);box-shadow:0 0 0 2px var(--ink);appearance:none;pointer-events:auto}.dual-track input::-moz-range-thumb{width:22px;height:22px;border:4px solid var(--paper);border-radius:50%;background:var(--ink);pointer-events:auto}.dual-scale{display:flex;justify-content:space-between;font:700 12px/1 ui-monospace,monospace}.dual-range-demo .action{justify-self:start}.workflow-compare{display:grid;grid-template-columns:minmax(230px,.55fr) minmax(0,1.45fr);gap:18px}.compare-stage{display:grid;gap:12px;min-width:0}.compare-stage>header{display:flex;justify-content:space-between;gap:16px;align-items:end}.compare-stage h2{margin:.2em 0}.compare-core{--compare-split:50%;min-width:0;padding:14px;clip-path:inset(0 calc(100% - var(--compare-split)) 0 0);outline:1px dashed var(--accent);outline-offset:-8px;transition:clip-path .25s,filter .25s}.compare-core[data-compare-channel="B"]{filter:hue-rotate(32deg) saturate(1.15)}.compare-controls{display:grid;align-content:start;gap:16px;padding:20px;border:1px solid var(--line);border-radius:24px 4px 24px 4px;background:var(--paper)}.compare-controls fieldset,.compare-controls>label{display:grid;gap:8px}.compare-controls input[type="range"]{width:100%}#workflowCompareShelf{display:grid;gap:6px;padding:0;margin:0;list-style:none}#workflowCompareShelf li{display:grid;grid-template-columns:auto 1fr auto;gap:8px;padding:9px;border-top:1px solid var(--line);font-size:12px}@media(max-width:900px){.workflow-compare{grid-template-columns:1fr}.compare-stage{order:-1}.compare-core{clip-path:none;border-left:8px solid var(--accent)}}
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<body data-aesthetic="magazine" data-composition="control-deck">
<main class="page">
<header class="mast"><div><span class="eyebrow">magazine / 双值区间控制 / INTERMEDIATE</span><h1>旅行计划双值区间控制</h1><p class="intro">在旅行计划场景中完成双值区间控制：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">旅行计划</span></header>
<div class="composition-deck"><div class="deck-bar"><span>CONTROL DECK · 04</span><span>双值区间控制</span><span class="deck-lights" aria-hidden="true"><i></i><i></i><i></i></span></div><section class="demo" aria-label="旅行计划双值区间控制交互区域"><div class="workflow-compare"><form id="workflowCompareControls" class="compare-controls"><fieldset><legend>对照通道</legend><label><input type="radio" name="workflowChannel" value="A" checked>A · 省时路线</label><label><input type="radio" name="workflowChannel" value="B">B · 均衡路线</label></fieldset><label>行程预算权重<input id="workflowCompareWeight" type="range" min="10" max="90" value="50"><output id="workflowCompareWeightValue">50 元</output></label><label><input id="workflowCompareFreeze" type="checkbox">冻结当前版本</label><button id="workflowCompareCapture" class="action primary" type="button">采样并保存路线</button><ol id="workflowCompareShelf" aria-label="版本采样记录"></ol></form><section class="compare-stage"><header><span class="eyebrow">旅行计划 COMPARE</span><h2>旅行路线双版本对照</h2><output id="workflowCompareLive">A 版本等待采样</output></header><section id="workflowCore" class="workflow-core compare-core" data-compare-channel="A" style="--compare-split:50%"><!-- 11DZ_CORE_START:controls-selectors-dual-range --><section class="dual-range-demo"><header><span class="eyebrow">DUAL RANGE</span><h2>旅行计划区间</h2><p>两个滑块共同定义最小值和最大值，交叉时自动保持顺序。</p></header><div class="dual-range-readout"><output id="dualMinimum">20</output><span>至</span><output id="dualMaximum">78</output></div><div id="dualTrack" class="dual-track" style="--from:20%;--to:78%"><input id="rangeMinimum" type="range" min="0" max="100" value="20" aria-label="区间最小值" data-core-bridge="controls-selectors-dual-range"><input id="rangeMaximum" type="range" min="0" max="100" value="78" aria-label="区间最大值"></div><div class="dual-scale"><span>0</span><span>50</span><span>100</span></div><button id="dualReset" class="action" type="button">重置区间</button></section><!-- 11DZ_CORE_END --></section></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:controls-selectors-dual-range */
const rangeMinimum=document.querySelector('#rangeMinimum');const rangeMaximum=document.querySelector('#rangeMaximum');const dualTrack=document.querySelector('#dualTrack');function renderDual(changed){let minimum=Number(rangeMinimum.value);let maximum=Number(rangeMaximum.value);if(minimum>maximum){if(changed===rangeMinimum)maximum=minimum;else minimum=maximum;rangeMinimum.value=String(minimum);rangeMaximum.value=String(maximum);}document.querySelector('#dualMinimum').textContent=minimum;document.querySelector('#dualMaximum').textContent=maximum;dualTrack.style.setProperty('--from',minimum+'%');dualTrack.style.setProperty('--to',maximum+'%');rangeMinimum.setAttribute('aria-valuetext','最小值 '+minimum);rangeMaximum.setAttribute('aria-valuetext','最大值 '+maximum);announce('当前区间 '+minimum+' 至 '+maximum);}rangeMinimum.addEventListener('input',()=>renderDual(rangeMinimum));rangeMaximum.addEventListener('input',()=>renderDual(rangeMaximum));document.querySelector('#dualReset').addEventListener('click',()=>{rangeMinimum.value='20';rangeMaximum.value='78';renderDual();});renderDual();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"controls-selectors-dual-range","selector":"[data-core-bridge=\"controls-selectors-dual-range\"]","mode":"range","key":"ArrowRight"};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+' · 核心版本 '+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.addEventListener("input",workflowBridgeScheduleCommit);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();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowCompareCore=document.querySelector('#workflowCore');const workflowCompareWeight=document.querySelector('#workflowCompareWeight');const workflowCompareState={channel:'A',weight:50,frozen:false,snapshots:[]};function workflowCompareFingerprint(){const controls=[...workflowCompareCore.querySelectorAll('input,select,textarea')];const outputs=[...workflowCompareCore.querySelectorAll('output,[role="status"],strong')].map(node=>node.textContent.trim()).filter(Boolean);return {controlValues:controls.map(control=>control.type==='checkbox'||control.type==='radio'?control.checked:control.value),summary:outputs.slice(0,4).join(' / '),nodes:workflowCompareCore.querySelectorAll('*').length};}function workflowCompareDrive(){workflowCompareCore.dataset.compareChannel=workflowCompareState.channel;workflowCompareCore.style.setProperty('--compare-split',workflowCompareState.weight+'%');document.querySelector('#workflowCompareWeightValue').textContent=workflowCompareState.weight+' 元';document.querySelector('#workflowCompareLive').textContent=workflowCompareState.channel+' 版本 · '+workflowCompareState.weight+' 元'+(workflowCompareState.frozen?' · 已冻结':'');announce('旅行路线正在查看 '+workflowCompareState.channel+' 版本');}function workflowCompareCapture(source){const bridge=workflowBridgeActivate();const snapshot={...workflowCompareFingerprint(),channel:workflowCompareState.channel,weight:workflowCompareState.weight,source,bridge:bridge.summary};workflowCompareState.snapshots.push(snapshot);const item=document.createElement('li');item.innerHTML='<b>'+snapshot.channel+'</b><span>'+(snapshot.summary||snapshot.bridge)+'</span><small>'+snapshot.weight+' 元 · '+snapshot.bridge+'</small>';document.querySelector('#workflowCompareShelf').prepend(item);announce('已采样 '+snapshot.channel+' 版本并保存路线 · '+bridge.summary);}document.querySelectorAll('[name="workflowChannel"]').forEach(input=>input.addEventListener('change',()=>{workflowCompareState.channel=input.value;workflowCompareDrive();}));workflowCompareWeight.addEventListener('input',()=>{workflowCompareState.weight=Number(workflowCompareWeight.value);workflowCompareDrive();});document.querySelector('#workflowCompareFreeze').addEventListener('change',event=>{workflowCompareState.frozen=event.currentTarget.checked;workflowCompareDrive();});document.querySelector('#workflowCompareCapture').addEventListener('click',()=>workflowCompareCapture('按钮采样'));workflowCompareCore.addEventListener('dblclick',()=>workflowCompareCapture('主视图双击'));workflowCompareDrive();
workflowBridgeReset();
</script>
</body>
</html>