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G18 · 一笔绘制与计数器

累计增长（一条线+一个大数）的 Glance 真实参考实现。示例结论为“上半年收入，一笔画出”，副标题已经把图例、单位或时间口径写在图旁：累计年度经常性收入 · 曲线绘制的同时数字递增 · 点击重播

技术档案

项目 约定
数据形状 累计增长（一条线+一个大数）
场合 短视频/汇报开场
读者时间 动画
渲染引擎 ECharts
交互与动效 滚入视野初始化，点击图表重播；保留原 gallery 的 tooltip 与动画
示例来源行 DRAW-IN + COUNTER · MONO-FANCY4 · FINANCE

实现与使用边界

  • 页面直接复用 gallery 中 “H1 revenue, drawn in one stroke” 的卡片结构和同名渲染块，没有按截图重新绘制。
  • 标题、副标题、图形、来源行四件套保持原样；数据编码、比例关系、灰阶和动画节奏由原实现决定。
  • 使用时只替换数据与文案，并保持“累计增长（一条线+一个大数）”这一数据契约；若数据本体改变，应回到总目录重新选型。
  • 颜色限于 Mono 灰阶，面积编码继续使用平方根换算；柱长、位置与角度编码不得断轴或视觉夸大。

模板来源：Lieflat Charts G18 Draw-in + Counter，真实骨架取自 templates/glance-gallery.html 的 “H1 revenue, drawn in one stroke” 卡片与对应渲染块。

g18-draw-in-plus-counter.html —— 自包含单页源码 
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<title>Lieflat Charts — G18 一笔绘制与计数器</title>
<script src="https://cdn.jsdelivr.net/npm/chart.js@4"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@6/dist/echarts.min.js"></script>
<link rel="stylesheet" href="../../../../vendor/fonts/fonts.css">
<style>
  :root{--bg:#F0EFEB;--dark:#1C1C1A;--ink:#1C1C1A;--muted:#8F8E88;--faint:#C6C5BF;--grid:#DEDDD6}
  *{margin:0;padding:0;box-sizing:border-box}
  body{background:var(--bg);font-family:'Inter',sans-serif;color:var(--ink);padding:40px;-webkit-font-smoothing:antialiased}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:1400px;margin:0 auto}
  .card{background:var(--bg);border-radius:24px;padding:28px 28px 20px}
  .card.dark{background:var(--dark);color:#F0EFEB}
  .card.dark .sub{color:#8F8E88}
  .card.dark .src{color:#55554F}
  h2{font-weight:700;font-size:16.5px;letter-spacing:-.02em;margin-bottom:3px}
  .sub{font-size:11.5px;color:var(--muted);margin-bottom:14px}
  .src{font-size:9.5px;color:var(--faint);margin-top:10px;letter-spacing:.08em;font-weight:500}
  .ch{height:320px}
  .wrap{position:relative;height:320px}
  svg text{font-family:'Inter',sans-serif}
  .pop{transform-box:fill-box;transform-origin:center;animation:pop .5s cubic-bezier(.2,.7,.3,1.3) both}
  @keyframes pop{from{transform:scale(0)}to{transform:none}}

  .pagehead{max-width:1400px;margin:0 auto 26px;padding:0 4px}
  .pagehead h1{font-size:22px;letter-spacing:-.02em;font-weight:800}
  .pagehead p{font-size:12px;color:#8F8E88;margin-top:5px;line-height:1.7}
  .pagehead .badge{margin:0 2px}
  .badge{display:inline-block;font-size:9px;font-weight:700;letter-spacing:.08em;
    padding:3px 10px;border-radius:99px;margin-bottom:10px}
  .badge.del{background:#1C1C1A;color:#F0EFEB}
  .badge.pick{border:1.5px solid #1C1C1A;color:#1C1C1A}
  .badge.pair{border:1px dashed #B0AFA9;color:#8F8E88}
  .card.dark .badge.del{background:#F0EFEB;color:#1C1C1A}
  .card.dark .badge.pick{border-color:#F0EFEB;color:#F0EFEB}
  .card.dark .badge.pair{border-color:#55554F;color:#8F8E88}

  html,body{min-height:100%;margin:0}
  body{display:grid;place-items:center;padding:28px}
  .pagehead{display:none}
  .grid2{display:block;width:min(100%,920px);max-width:920px;margin:0 auto}
  .card,.card.wide{display:block;width:100%;min-height:520px;padding:38px 42px 24px}
  .card .split{grid-template-columns:minmax(190px,250px) 1fr}
  .wiki-code{display:inline-block;margin-bottom:12px;padding:4px 11px;border:1px dashed #B0AFA9;border-radius:99px;color:#8F8E88;font-size:10px;font-weight:700;letter-spacing:.08em}
  .card.dark .wiki-code{border-color:#55554F}
  @media(max-width:620px){
    body{padding:10px}
    .card,.card.wide{min-height:500px;padding:26px 18px 20px}
    .card .split{display:block}
    .card .note,.card .legend{display:none}
  }
</style>

</head>
<body>
<main class="grid2">
<div class="card">
    <span class="wiki-code">GLANCE 快读型 · G18</span>
    <h2>上半年收入，一笔画出</h2>
    <div class="sub">累计年度经常性收入 · 曲线绘制的同时数字递增 · 点击重播</div>
    <div class="ch" id="stroke"></div>
    <div class="src">DRAW-IN + COUNTER · MONO-FANCY4 · FINANCE</div>
  </div>
</main>
<script>
// ── shared Mono tokens ──
const INK='#1C1C1A',PAPER='#F0EFEB',MUTED='#8F8E88',GRID='#DEDDD6';
const L=['#1C1C1A','#4A4944','#6A6963','#8F8E88','#B0AFA9','#C6C5BF'];
const LAD=['#1C1C1A','#4A4944','#8F8E88','#B0AFA9','#D8D7D1'];
const tipLight={backgroundColor:INK,borderWidth:0,textStyle:{color:PAPER,fontFamily:'Inter',fontSize:12},padding:[10,14]};
const tipDark={backgroundColor:PAPER,borderWidth:0,textStyle:{color:INK,fontFamily:'Inter',fontSize:12},padding:[10,14]};
const rnd=(i,k)=>((i*73856093)^(k*19349663))%1000/1000; // deterministic

// ── unified reveal: every chart waits to be scrolled into view; click replays.
//    fn charts manage their own timers via keep(); they're cleared on replay.
const timers={};
const obsReveal=(id,fn)=>{
  const el=document.getElementById(id);
  const go=()=>{(timers[id]||[]).forEach(clearInterval);timers[id]=[];fn(el)};
  const io=new IntersectionObserver(es=>{
    if(es[0].isIntersecting){go();io.disconnect()}
  },{threshold:.35});
  io.observe(el);
  el.style.cursor='pointer';
  el.addEventListener('click',go);
};
const keep=(id,t)=>{(timers[id]=timers[id]||[]).push(t)};
const eReveal=(id,opt)=>obsReveal(id,el=>{
  const g=echarts.getInstanceByDom(el)||echarts.init(el);
  g.clear();g.setOption(opt);
});
const cjs={};
const cReveal=(id,mkCfg)=>obsReveal(id,el=>{
  cjs[id]?.destroy();
  cjs[id]=new Chart(el,mkCfg());
});

Chart.defaults.color=MUTED;
Chart.defaults.font.family='Inter';
Chart.defaults.font.size=10.5;
Chart.defaults.borderColor=GRID;
Chart.defaults.plugins.legend.display=false;
Chart.defaults.plugins.tooltip.backgroundColor=INK;
Chart.defaults.plugins.tooltip.titleColor='#F0EFEB';
Chart.defaults.plugins.tooltip.bodyColor='#A5A49E';
Chart.defaults.plugins.tooltip.padding=12;
Chart.defaults.plugins.tooltip.cornerRadius=12;
Chart.defaults.plugins.tooltip.displayColors=false;

// ════ mono-fancy4 · 3: draw-in + counter ════
(()=>{
const days=Array.from({length:180},(_,i)=>i);
const daily=days.map(i=>14+10*Math.sin(i/29)+i*.12+rnd(i+1,3)*6);
const cum=[];daily.reduce((a,b,i)=>(cum[i]=a+b,cum[i]),0);
const TOTAL=cum[cum.length-1];
const DUR=2600;
let gen=0; // replay guard: only the latest counter loop may write
obsReveal('stroke',el=>{
  const g=echarts.getInstanceByDom(el)||echarts.init(el);
  g.clear();
  gen++;const my=gen;
  g.setOption({
    animationDuration:DUR,animationEasing:'cubicOut',
    tooltip:{show:false},
    grid:{left:14,right:20,top:64,bottom:24},
    xAxis:{type:'category',data:days,boundaryGap:false,
      axisLine:{show:false},axisTick:{show:false},splitLine:{show:false},
      axisLabel:{color:'#C6C5BF',fontFamily:'Inter',fontSize:9,fontWeight:600,
        interval:29,formatter:i=>['JAN','FEB','MAR','APR','MAY','JUN'][Math.floor(i/30)]||''}},
    yAxis:{show:false,max:TOTAL*1.06},
    series:[{
      type:'line',data:cum.map(x=>Math.round(x)),smooth:.2,symbol:'none',
      lineStyle:{color:INK,width:2.6},
      areaStyle:{color:{type:'linear',x:0,y:0,x2:0,y2:1,
        colorStops:[{offset:0,color:'rgba(28,28,26,.14)'},{offset:1,color:'rgba(28,28,26,0)'}]}},
    }],
  });
  const t0=performance.now();
  const tick=()=>{
    if(my!==gen)return;
    const p=Math.min(1,(performance.now()-t0)/DUR);
    const eased=1-Math.pow(1-p,3);
    const val=(TOTAL*eased/1000).toFixed(2);
    g.setOption({graphic:[{id:'kpi',type:'group',left:16,top:8,children:[
      {type:'text',style:{text:'$'+val+'M',font:'800 32px Inter',fill:INK}},
      {type:'text',style:{text:'ARR · H1 2026',y:38,font:'600 10px Inter',fill:'#8F8E88'}},
    ]}]});
    if(p<1)requestAnimationFrame(tick);
  };
  requestAnimationFrame(tick);
});
})();

addEventListener('resize',()=>{
  ['rose','forest','circular','tree','rainfall','morph','negbar','force','wave',
   'custompie','singleaxis','jitter','race','stream','stroke']
    .forEach(id=>echarts.getInstanceByDom(document.getElementById(id))?.resize());
});
</script>
</body>
</html>