展览说明响应式字阶
在展览说明场景中完成响应式字阶：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>展览说明响应式字阶</title>
<style>
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.type-scale-workbench{display:grid;grid-template-columns:minmax(220px,.55fr) minmax(0,1.45fr);gap:18px}.type-scale-controls{display:grid;align-content:start;gap:18px}.type-scale-controls label{display:grid;grid-template-columns:1fr auto;gap:9px;font-weight:800}.type-scale-controls input,.type-scale-controls select{grid-column:1/-1;width:100%}.type-scale-preview{display:grid;align-content:center;gap:10px;min-height:420px;padding:clamp(24px,6vw,72px);overflow:hidden;border:1px solid var(--line);background:var(--paper)}.type-scale-preview>*{margin:0}.type-scale-preview>span{color:var(--accent);font:800 12px/1 ui-monospace,monospace;letter-spacing:.18em}.type-scale-preview p{max-width:58ch;line-height:1.7}@media(max-width:720px){.type-scale-workbench{grid-template-columns:1fr}.type-scale-preview{min-height:340px}}.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="playful" data-composition="gallery-frame">
<main class="page">
<header class="mast"><div><span class="eyebrow">playful / 响应式字阶 / INTERMEDIATE</span><h1>展览说明响应式字阶</h1><p class="intro">在展览说明场景中完成响应式字阶：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">展览说明</span></header>
<figure class="composition-gallery"><section class="demo" aria-label="展览说明响应式字阶交互区域"><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 · 简明说明</label><label><input type="radio" name="workflowChannel" value="B">B · 学术说明</label></fieldset><label>阅读时长权重<input id="workflowCompareWeight" type="range" min="10" max="90" value="50"><output id="workflowCompareWeightValue">50 分钟</output></label><label><input id="workflowCompareFreeze" type="checkbox">冻结当前版本</label><button id="workflowCompareCapture" class="action primary" type="button">采样并保存说明</button><ol id="workflowCompareShelf" aria-label="版本采样记录"></ol></form><section class="compare-stage"><header><span class="eyebrow">展览说明 COMPARE</span><h2>说明版本双版本对照</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:typography-text-type-scale --><div class="type-scale-workbench"><aside class="type-scale-controls panel"><span class="eyebrow">TYPE SCALE</span><h2>响应式字阶</h2><label>正文字号 <input id="scaleBase" type="range" min="14" max="22" value="17" data-core-bridge="typography-text-type-scale"><output id="scaleBaseValue">17px</output></label><label>字阶比例 <select id="scaleRatio"><option value="1.2">小三度 · 1.20</option><option value="1.25" selected>大三度 · 1.25</option><option value="1.333">纯四度 · 1.333</option></select></label></aside><article class="type-scale-preview" aria-label="展览说明字阶预览"><span>展览说明</span><h1 data-scale-level="4">清晰层级让内容自然展开</h1><h2 data-scale-level="3">章节标题连接上下文</h2><h3 data-scale-level="2">小标题帮助快速扫描</h3><p data-scale-level="0">正文保持舒适的阅读密度，并随基础字号同步变化。</p><small data-scale-level="-1">注释文字仍然清楚可辨。</small></article></div><!-- 11DZ_CORE_END --></section></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>展览说明 / GALLERY 03</strong></figcaption></figure>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
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const scaleBase=document.querySelector('#scaleBase');const scaleRatio=document.querySelector('#scaleRatio');const scaleNodes=[...document.querySelectorAll('[data-scale-level]')];function renderTypeScale(){const base=Number(scaleBase.value);const ratio=Number(scaleRatio.value);scaleNodes.forEach(node=>{const level=Number(node.dataset.scaleLevel);node.style.fontSize=(base*Math.pow(ratio,level)).toFixed(2)+'px';});document.querySelector('#scaleBaseValue').textContent=base+'px';announce('正文字号 '+base+' 像素，字阶比例 '+ratio);}scaleBase.addEventListener('input',renderTypeScale);scaleRatio.addEventListener('change',renderTypeScale);renderTypeScale();
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workflowBridgeReset();
</script>
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