지역 증분 실험

<div class="geo"><div class="head">MATCHED REGIONS <b id="phase">PRE-PERIOD</b></div><div class="regions"><div class="region"><span>REGION A · MEDIA ON</span><div class="bar" id="a"></div><strong id="av">80</strong></div><div class="region"><span>REGION B · CONTROL</span><div class="bar ctrl" id="b"></div><strong id="bv">78</strong></div></div><div class="note" id="note">SIMILAR BEFORE TEST</div></div>

.geo{width:min(86%,590px);font:850 clamp(10px,max(2vmin,1vw),14px)/1.2 sans-serif}.head{display:flex;justify-content:space-between;border-bottom:2px solid var(--fg);padding-bottom:8px}.head b{color:var(--accent)}.regions{display:grid;gap:clamp(10px,3vmin,24px);margin:clamp(14px,4vmin,28px) 0}.region{display:grid;grid-template-columns:clamp(74px,18vmin,125px) 1fr clamp(22px,6vmin,40px);align-items:center;gap:8px}.region span{font-size:clamp(10px,max(1.6vmin,1vw),12px)}.bar{width:70%;height:clamp(18px,5vmin,34px);background:var(--accent);transition:width .75s}.bar.ctrl{background:var(--accent-2)}.region strong{text-align:right}.note{border-top:1px solid var(--line);padding-top:8px;color:var(--muted);letter-spacing:.08em;font-size:clamp(10px,max(1.7vmin,1vw),12px)}

let after=false;function draw(){document.querySelector('#phase').textContent=after?'AFTER MEDIA':'PRE-PERIOD';document.querySelector('#a').style.width=after?'93%':'70%';document.querySelector('#b').style.width=after?'73%':'68%';document.querySelector('#av').textContent=after?'112':'80';document.querySelector('#bv').textContent=after?'84':'78';document.querySelector('#note').textContent=after?'A MOVES ABOVE CONTROL':'SIMILAR BEFORE TEST'}draw();setInterval(()=>{after=!after;draw()},1800);