익숙한 지역 신뢰

<div class="local"><div class="sender" id="sender">UNKNOWN SENDER</div><div class="wire"></div><div class="people"><i>BLOCK A</i><i>BLOCK B</i><i>BLOCK C</i></div><div class="caption" id="localCaption">WHO IS BEHIND THIS MESSAGE?</div></div>

@media(min-width:700px){body>div{transform:scale(1.45)}}.local{width:min(86%,530px);font:800 clamp(10px,max(1.7vmin,1vw),14px)/1.1 sans-serif;text-align:center}.sender{display:inline-block;min-width:52%;padding:clamp(10px,3vmin,22px);border:2px dashed var(--muted);background:var(--surface);transition:.4s}.local.known .sender{border:2px solid var(--accent);box-shadow:5px 5px 0 var(--accent-2)}.wire{width:75%;height:clamp(24px,9vmin,60px);margin:auto;border:2px solid var(--line);border-top:0;transition:border-color .4s}.local.known .wire{border-color:var(--accent)}.people{display:flex;justify-content:space-between;gap:7px}.people i{flex:1;padding:clamp(6px,2vmin,13px) 2px;background:var(--surface);border:1px solid var(--line);font-style:normal;font-size:clamp(10px,max(1.4vmin,1vw),12px)}.caption{margin-top:clamp(10px,3vmin,20px);color:var(--accent);letter-spacing:.06em}

const board=document.querySelector('.local');const sender=document.querySelector('#sender');const caption=document.querySelector('#localCaption');function flip(){const known=board.classList.toggle('known');sender.textContent=known?'LOCAL TEAM / VERIFIED ADDRESS':'UNKNOWN SENDER';caption.textContent=known?'IDENTITY + SERVICE AREA VISIBLE':'WHO IS BEHIND THIS MESSAGE?'}setTimeout(flip,450);setInterval(flip,2600);