夜花园万花筒图案
在夜花园场景中完成万花筒图案：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：
<!doctype html>
<html lang="zh-Hans" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>夜花园万花筒图案</title>
<style>
:root { --ink:#ecf7f3; --paper:#071310; --accent:#e05263; --secondary:#79b7c7; --line:color-mix(in srgb, var(--ink) 18%, transparent); --shadow:0 24px 60px color-mix(in srgb, var(--ink) 16%, transparent); color-scheme:light; }
* { box-sizing:border-box; }
html { min-width:320px; background:var(--paper); }
body { min-height:100vh; margin:0; overflow-x:hidden; color:var(--ink); font-family:ui-monospace,"SFMono-Regular",Consolas,monospace; background:linear-gradient(color-mix(in srgb,var(--secondary) 5%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--secondary) 5%,transparent) 1px,transparent 1px),var(--paper);background-size:24px 24px; }
button,input,select,textarea { color:inherit; font:inherit; }
button,[role="button"],input,select,textarea { accent-color:var(--accent); }
button { cursor:pointer; }
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
[hidden] { display:none !important; }
@media (max-width:700px) { .mast h1 { line-height:1.08 !important; letter-spacing:-.035em !important; overflow-wrap:anywhere; } }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; } }
.page{width:min(1080px,calc(100% - 30px));margin:auto;padding:48px 0}.eyebrow{color:var(--secondary);font:700 12px/1.3 ui-monospace,monospace}.eyebrow::before{content:"> ";color:var(--accent)}.mast{display:grid;grid-template-columns:1fr auto;border:1px solid var(--secondary);padding:18px;gap:24px;align-items:center;margin-bottom:16px}.mast h1{font-family:ui-monospace,"SFMono-Regular",monospace;font-weight:700;font-size:clamp(34px,7vw,72px);letter-spacing:-.055em;margin:12px 0;line-height:1.05}.intro{margin:0;color:color-mix(in srgb,var(--ink) 72%,transparent);font:400 14px/1.7 ui-monospace,monospace}.scenario{padding:7px 10px;border:1px dashed var(--secondary);font:700 11px/1 ui-monospace,monospace}.demo{border-color:var(--secondary);border-radius:8px;box-shadow:0 0 50px color-mix(in srgb,var(--secondary) 15%,transparent);position:relative;min-height:390px;padding:26px;background:color-mix(in srgb,var(--paper) 94%,#000)}@media(max-width:700px){.page{width:calc(100% - 18px);padding:20px 0}.mast{grid-template-columns:1fr}.demo{padding:14px}}
.panel{padding:20px;border:1px solid color-mix(in srgb,var(--accent) 50%,transparent);border-radius:18px;background:color-mix(in srgb,var(--paper) 88%,transparent);box-shadow:inset 0 0 24px color-mix(in srgb,var(--accent) 7%,transparent)}.stack{display:grid;gap:16px}.row{display:flex;flex-wrap:wrap;gap:9px}.action{padding:11px 16px;border:1px solid var(--accent);border-radius:6px;color:var(--accent);background:transparent;box-shadow:0 0 14px color-mix(in srgb,var(--accent) 10%,transparent)}.action.primary,.action.is-active{color:var(--paper);background:var(--accent)}.status{min-height:24px;color:var(--secondary);text-shadow:0 0 10px currentColor}.metric{font-size:clamp(30px,7vw,64px);font-weight:900;text-shadow:0 0 18px color-mix(in srgb,var(--accent) 40%,transparent)}.muted{opacity:.7}.chip{padding:6px 9px;border:1px solid var(--secondary);border-radius:4px}.meter{height:7px;background:color-mix(in srgb,var(--accent) 15%,transparent)}.meter>i{display:block;height:100%;box-shadow:0 0 12px var(--accent);background:var(--accent)}
.composition-split{display:grid;grid-template-columns:150px minmax(0,1fr);gap:18px;align-items:start}.split-note{position:sticky;top:20px;display:grid;gap:14px;padding:18px 12px;border-block:3px double var(--accent);font-size:13px;line-height:1.65}.split-note b{font:900 12px/1 ui-monospace,monospace;letter-spacing:.12em}.split-note span{writing-mode:vertical-rl;min-height:120px;color:color-mix(in srgb,var(--ink) 60%,transparent)}.composition-split .demo{min-width:0}@media(max-width:900px){.composition-split{grid-template-columns:1fr}.split-note{position:static;grid-template-columns:auto 1fr}.split-note span{writing-mode:horizontal-tb;min-height:0}}
.kaleidoscope-lab{display:grid;grid-template-columns:minmax(300px,1fr) minmax(220px,.55fr);gap:16px;align-items:stretch}.kaleidoscope-lab canvas{width:100%;max-height:520px;aspect-ratio:1;border:1px solid var(--line);border-radius:50%;background:#100b24;touch-action:none}.kaleidoscope-controls{display:grid;align-content:center;gap:17px}.kaleidoscope-controls label{display:grid;grid-template-columns:1fr auto;gap:8px;font-weight:800}.kaleidoscope-controls input{grid-column:1/-1}@media(max-width:740px){.kaleidoscope-lab{grid-template-columns:1fr}.kaleidoscope-lab canvas{max-height:none}}.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}}
</style>
</head>
<body data-aesthetic="terminal" data-composition="split-note">
<main class="page">
<header class="mast"><div><span class="eyebrow">terminal / 万花筒图案 / BEGINNER</span><h1>夜花园万花筒图案</h1><p class="intro">在夜花园场景中完成万花筒图案：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">夜花园</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>掌握万花筒图案的语义结构、响应式编排、键盘操作与状态同步。</span></aside><section class="demo" aria-label="夜花园万花筒图案交互区域"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">夜花园 SESSION</span><h2>花园观测计时台</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">开始观测</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="花园观测进度" 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:creative-effects-kaleidoscope --><div class="kaleidoscope-lab"><canvas id="kaleidoscopeCanvas" width="720" height="720" tabindex="0" aria-label="夜花园互动万花筒；移动指针或使用左右方向键旋转图案" aria-describedby="kaleidoscopeHelp">当前浏览器不支持 Canvas。</canvas><aside class="kaleidoscope-controls panel"><span class="eyebrow">KALEIDOSCOPE</span><h2>万花筒图案</h2><p id="kaleidoscopeHelp" class="muted">多个镜像扇区共享同一组图形，形成严格对称。移动指针改变旋转角。</p><label>镜像扇区 <input id="kaleidoscopeSegments" type="range" min="4" max="16" step="2" value="10" data-core-bridge="creative-effects-kaleidoscope"><output id="kaleidoscopeSegmentsValue">10</output></label><label>图形密度 <input id="kaleidoscopeDensity" type="range" min="3" max="12" value="7"><output id="kaleidoscopeDensityValue">7</output></label><button id="kaleidoscopeSpin" class="action" type="button" aria-pressed="false">自动旋转</button></aside></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:creative-effects-kaleidoscope */
const kaleidoscopeCanvas=document.querySelector('#kaleidoscopeCanvas');const kaleidoscopeContext=kaleidoscopeCanvas.getContext('2d');const kaleidoscopeSegments=document.querySelector('#kaleidoscopeSegments');const kaleidoscopeDensity=document.querySelector('#kaleidoscopeDensity');const kaleidoscopeReduced=matchMedia('(prefers-reduced-motion: reduce)').matches;let kaleidoscopeAngle=0;let kaleidoscopeSpinning=false;let kaleidoscopeFrame=0;function sizeKaleidoscope(){const rect=kaleidoscopeCanvas.getBoundingClientRect();const side=Math.max(300,Math.min(rect.width,rect.height||rect.width));const ratio=Math.min(2,devicePixelRatio||1);kaleidoscopeCanvas.width=Math.round(side*ratio);kaleidoscopeCanvas.height=Math.round(side*ratio);kaleidoscopeContext.setTransform(ratio,0,0,ratio,0,0);drawKaleidoscope();}function drawKaleidoscope(){const side=kaleidoscopeCanvas.width/Math.min(2,devicePixelRatio||1);const center=side/2;const segments=Number(kaleidoscopeSegments.value);const density=Number(kaleidoscopeDensity.value);kaleidoscopeContext.fillStyle='#100b24';kaleidoscopeContext.fillRect(0,0,side,side);for(let segment=0;segment<segments;segment+=1){for(let mirror=0;mirror<2;mirror+=1){kaleidoscopeContext.save();kaleidoscopeContext.translate(center,center);kaleidoscopeContext.rotate(kaleidoscopeAngle+segment*Math.PI*2/segments);kaleidoscopeContext.scale(1,mirror?-1:1);for(let index=0;index<density;index+=1){const radius=36+index*(center-54)/density;const size=8+(index*7)%24;kaleidoscopeContext.beginPath();kaleidoscopeContext.fillStyle=['#22d3ee','#f472b6','#fde047','#a78bfa'][index%4]+'bb';kaleidoscopeContext.arc(radius,Math.sin(index*1.7)*radius*.18,size,0,Math.PI*2);kaleidoscopeContext.fill();kaleidoscopeContext.rotate(.045);}kaleidoscopeContext.restore();}}if(kaleidoscopeSpinning&&!kaleidoscopeReduced){kaleidoscopeAngle+=.004;cancelAnimationFrame(kaleidoscopeFrame);kaleidoscopeFrame=requestAnimationFrame(drawKaleidoscope);}}kaleidoscopeCanvas.addEventListener('pointermove',event=>{const rect=kaleidoscopeCanvas.getBoundingClientRect();kaleidoscopeAngle=(event.clientX-rect.left)/rect.width*Math.PI*2;drawKaleidoscope();});kaleidoscopeCanvas.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight'].includes(event.key))return;event.preventDefault();kaleidoscopeAngle+=event.key==='ArrowRight'?.12:-.12;drawKaleidoscope();announce('万花筒旋转角度已调整');});[kaleidoscopeSegments,kaleidoscopeDensity].forEach(input=>input.addEventListener('input',()=>{document.querySelector('#kaleidoscopeSegmentsValue').textContent=kaleidoscopeSegments.value;document.querySelector('#kaleidoscopeDensityValue').textContent=kaleidoscopeDensity.value;drawKaleidoscope();announce('万花筒 '+kaleidoscopeSegments.value+' 个扇区，密度 '+kaleidoscopeDensity.value);}));document.querySelector('#kaleidoscopeSpin').addEventListener('click',event=>{kaleidoscopeSpinning=!kaleidoscopeSpinning;event.currentTarget.textContent=kaleidoscopeSpinning?'停止旋转':'自动旋转';event.currentTarget.setAttribute('aria-pressed',String(kaleidoscopeSpinning));cancelAnimationFrame(kaleidoscopeFrame);drawKaleidoscope();announce(kaleidoscopeSpinning?'万花筒开始自动旋转':'万花筒已停止旋转');});addEventListener('resize',sizeKaleidoscope,{passive:true});sizeKaleidoscope();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"creative-effects-kaleidoscope","selector":"[data-core-bridge=\"creative-effects-kaleidoscope\"]","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?'花园观测回合完成':'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('花园观测回合已开始 · '+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>
</body>
</html>