城市杂志流体标题排版
在城市杂志场景中完成流体标题排版：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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<title>城市杂志流体标题排版</title>
<style>
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.panel{padding:18px;border:2px solid var(--line);border-radius:26px;box-shadow:0 12px 0 color-mix(in srgb,var(--secondary) 35%,transparent)}.row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.stack{display:grid;gap:12px}.action{padding:12px 20px;border:2px solid var(--ink);border-radius:14px;background:var(--paper);box-shadow:0 5px 0 var(--ink);font-weight:800}.action:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}.action.primary,.action.is-active{color:var(--paper);background:var(--accent)}.status{text-align:center;min-height:26px;margin-top:18px}.metric{text-align:center;font-size:clamp(34px,8vw,70px);font-weight:900}.muted{text-align:center;opacity:.7}.meter{height:14px;padding:2px;border:2px solid var(--ink);border-radius:999px}.meter>i{display:block;height:100%;border-radius:inherit;background:var(--secondary)}.chip{padding:7px 11px;border-radius:12px;background:color-mix(in srgb,var(--accent) 12%,transparent)}
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.fluid-type-lab{display:grid;grid-template-columns:minmax(230px,.62fr) minmax(0,1.38fr);gap:18px}.fluid-controls{display:grid;align-content:start;gap:15px}.fluid-controls label{display:grid;grid-template-columns:1fr auto;gap:8px;font-weight:800}.fluid-controls input{grid-column:1/-1;width:100%}.fluid-controls code{padding:12px;overflow:auto;border:1px dashed var(--line);border-radius:9px}.fluid-frame{display:flex;align-items:stretch;overflow:auto;padding:14px;border:1px solid var(--line);background:color-mix(in srgb,var(--secondary) 12%,transparent)}#fluidPreview{width:100%;min-width:280px;max-width:100%;padding:clamp(24px,5vw,64px);background:var(--paper)}#fluidPreview span{color:var(--accent);font-weight:900}#fluidPreview h3{max-width:15ch;margin:.25em 0;line-height:.96}#fluidPreview p{max-width:52ch;line-height:1.7}@media(max-width:720px){.fluid-type-lab{grid-template-columns:1fr}}.workflow-session{display:grid;gap:14px}.session-command{display:grid;grid-template-columns:1fr auto minmax(170px,.45fr) auto;gap:16px;align-items:end;padding:18px;border-block:4px double var(--ink)}.session-command h2{margin:.2em 0}.session-command output{font:900 clamp(28px,5vw,54px)/1 ui-monospace,monospace}.session-command label{display:grid;grid-template-columns:1fr auto;gap:7px;font-size:12px}.session-command input{grid-column:1/-1;width:100%}#workflowSessionProgress{height:12px;overflow:hidden;border-radius:2px;background:var(--line)}#workflowSessionProgress i{display:block;width:0;height:100%;background:var(--accent)}.session-stage{min-width:0;transition:filter .25s,transform .25s}.session-stage[data-session-phase="running"]{transform:translateY(-3px)}.session-stage[data-session-phase="paused"]{filter:grayscale(.65)}.session-stage[data-session-phase="complete"]{filter:contrast(.78);opacity:.72}.session-log{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start}.session-log ol{display:flex;flex-wrap:wrap;gap:7px;padding:0;margin:0;list-style:none}.session-log li{padding:5px 8px;border:1px solid var(--line);font-size:12px}@media(max-width:900px){.session-stage{order:-1}.session-command{grid-template-columns:1fr auto}.session-command label{grid-column:1/-1}.session-log{grid-template-columns:1fr}}
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<body data-aesthetic="monochrome" data-composition="studio">
<main class="page">
<header class="mast"><div><span class="eyebrow">monochrome / 流体标题排版 / BEGINNER</span><h1>城市杂志流体标题排版</h1><p class="intro">在城市杂志场景中完成流体标题排版：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">城市杂志</span></header>
<div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="城市杂志流体标题排版交互区域"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">城市杂志 SESSION</span><h2>杂志截稿计时台</h2></div><output id="workflowSessionClock">00:45</output><label>回合时长<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>秒</span></label><button id="workflowSessionToggle" class="action primary" type="button">开始校稿</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="杂志截稿进度" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:typography-text-fluid-headline --><div class="fluid-type-lab"><div class="fluid-controls panel"><span class="eyebrow">FLUID HEADLINE</span><h2>流体标题排版</h2><label>最小字号 <input id="fluidMin" type="range" min="24" max="44" value="30" data-core-bridge="typography-text-fluid-headline"><output id="fluidMinValue">30px</output></label><label>最大字号 <input id="fluidMax" type="range" min="54" max="104" value="82"><output id="fluidMaxValue">82px</output></label><label>模拟视口 <input id="fluidViewport" type="range" min="320" max="1440" step="10" value="980"><output id="fluidViewportValue">980px</output></label><code id="fluidFormula">clamp(30px, 6vw, 82px)</code></div><div class="fluid-frame"><article id="fluidPreview" aria-label="模拟视口宽度 980 像素"><span>城市杂志</span><h3>标题随空间呼吸，而不是突然跳级。</h3><p>拖动模拟视口，观察字号在上下限之间连续变化。</p></article></div></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 个交互检查点</strong><ol id="workflowSessionLaps" aria-label="回合记录"></ol></footer></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:typography-text-fluid-headline */
const fluidMin=document.querySelector('#fluidMin');const fluidMax=document.querySelector('#fluidMax');const fluidViewport=document.querySelector('#fluidViewport');const fluidPreview=document.querySelector('#fluidPreview');function renderFluidType(){let min=Number(fluidMin.value);let max=Math.max(min+10,Number(fluidMax.value));if(max!==Number(fluidMax.value))fluidMax.value=max;const width=Number(fluidViewport.value);const progress=(width-320)/(1440-320);const size=min+(max-min)*Math.max(0,Math.min(1,progress));fluidPreview.style.width=Math.min(width,fluidPreview.parentElement.clientWidth)+'px';fluidPreview.querySelector('h3').style.fontSize=size.toFixed(1)+'px';fluidPreview.setAttribute('aria-label','模拟视口宽度 '+width+' 像素，标题字号 '+size.toFixed(1)+' 像素');document.querySelector('#fluidMinValue').textContent=min+'px';document.querySelector('#fluidMaxValue').textContent=max+'px';document.querySelector('#fluidViewportValue').textContent=width+'px';document.querySelector('#fluidFormula').textContent='clamp('+min+'px, 6vw, '+max+'px)';announce('模拟 '+width+' 像素视口，标题 '+size.toFixed(1)+' 像素');}[fluidMin,fluidMax,fluidViewport].forEach(input=>input.addEventListener('input',renderFluidType));renderFluidType();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"typography-text-fluid-headline","selector":"[data-core-bridge=\"typography-text-fluid-headline\"]","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 workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' 个交互检查点';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'重新开始':'继续回合';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'杂志截稿回合完成':'回合已暂停');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='暂停回合';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('杂志截稿回合已开始 · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('键盘操作');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('核心操作 · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
</script>
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