Show the Pseudo Lab logo at the top of the hub and open with the team's name

The hero and the share image now carry the Pseudo Lab logo instead of the
'Pseudo-Lab | 인과추론팀 Causal-Lab' text line, and the lead starts with
'가짜연구소 인과추론팀은 2022년부터'. The logo is the white one the web book
already uses.

Author: jsshin2022

assets/css/hub.css

@@ -107,9 +107,7 @@ body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-a
 .banner::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 90% at 88% 20%, rgba(255, 255, 255, .16), transparent 60%); pointer-events: none; }
 .banner > * { position: relative; }
 .banner-kicker { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .82); margin-bottom: 14px; }
-.banner-kicker span:first-child { font-weight: 700; color: #fff; letter-spacing: -.01em; }
-.banner-kicker .sep { width: 1px; height: 14px; background: rgba(255, 255, 255, .35); }
-.banner-kicker b { color: #fff; }
+.banner-kicker img { display: block; height: 34px; width: auto; }
 .banner h1 { font-family: var(--f-display); font-weight: 800; font-size: clamp(36px, 4.6vw, 58px); line-height: 1.08; letter-spacing: -.03em; }
 .banner-lede { margin-top: 14px; font-size: 17px; color: rgba(255, 255, 255, .86); max-width: 36em; }
 .banner-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

assets/img/og-hub.png

@@ -50,9 +50,9 @@
     <div class="wrap">
       <div class="banner">
         <div class="banner-main">
-          <p class="banner-kicker"><span>Pseudo-Lab</span><span class="sep" aria-hidden="true"></span>인과추론팀 <b>Causal-Lab</b></p>
+          <p class="banner-kicker"><img src="assets/img/pseudolab-white.png" alt="가짜연구소 Pseudo Lab" width="140" height="34"></p>
           <h1 id="hero-title">Causal Inference Hub</h1>
-          <p class="banner-lede">2022년부터 함께 만든 인과추론과 온라인 실험 자료를 주제별로 찾고, Level 0–4 커리큘럼으로 따라갈 수 있게 엮었습니다.</p>
+          <p class="banner-lede">가짜연구소 인과추론팀은 2022년부터 인과추론과 온라인 실험 자료를 함께 만들어 왔습니다. 그 자료를 주제별로 찾고, Level 0–4 커리큘럼으로 따라갈 수 있게 엮었습니다.</p>
           <form class="hero-search" action="library.html" method="get" role="search"><input type="hidden" name="from" value="hero">
             <label class="hs-box">
               <span class="sr-only">자료실에서 주제, 방법, 용어로 찾기</span>