보조 전환

<div class="assist"><div class="assist-line"><div class="assist-node" data-n="0">GUIDE</div><i></i><div class="assist-node" data-n="1">REVIEW</div><i></i><div class="assist-node active" data-n="2">SEARCH AD</div><i></i><div class="assist-node sale">SALE</div></div><div class="assist-note"><span id="assist-title">LAST CLICK VIEW</span><b id="assist-copy">Only the final ad is visible</b></div></div>

.assist{width:min(93%,800px);display:grid;gap:clamp(17px,5vmin,38px);font:800 clamp(10px,max(2vmin,1vw),16px)/1 sans-serif}.assist-line{display:flex;align-items:center}.assist-node{flex:1;min-width:0;padding:clamp(8px,2vmin,17px) 2px;text-align:center;border:2px solid var(--line);color:var(--muted);opacity:.55;transition:.4s}.assist-node.active{opacity:1;border-color:var(--accent);color:var(--fg);background:var(--accent-2)}.assist-node.sale{opacity:1;background:var(--fg);border-color:var(--fg);color:var(--bg)}.assist-line i{flex:0 0 3%;height:2px;background:var(--line)}.assist-note{display:grid;gap:7px;border-top:3px solid var(--accent);padding-top:clamp(8px,2vmin,16px)}.assist-note span{color:var(--accent)}.assist-note b{font-size:clamp(13px,3vmin,24px)}

const nodes=[...document.querySelectorAll('.assist-node[data-n]')];let expanded=false;function draw(){nodes.forEach((n,i)=>n.classList.toggle('active',expanded||i===2));document.getElementById('assist-title').textContent=expanded?'FULL PATH VIEW':'LAST CLICK VIEW';document.getElementById('assist-copy').textContent=expanded?'Guide + review assisted the decision':'Only the final ad is visible';expanded=!expanded}draw();setInterval(draw,2300);