:root{
  --bg:#0b0f17;
  --card:#111827;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --line:rgba(255,255,255,.10);
  --accent:#60a5fa;
  --accent2:#34d399;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
  --max: 1060px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% -10%, rgba(96,165,250,.25), transparent 50%),
              radial-gradient(900px 500px at 80% 0%, rgba(52,211,153,.18), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max); margin:0 auto; padding:22px 18px 64px}
.topbar{
  position:sticky; top:0; z-index:30;
  backdrop-filter: blur(12px);
  background: rgba(11,15,23,.70);
  border-bottom: 1px solid var(--line);
}
.topbar .inner{
  max-width:var(--max);
  margin:0 auto;
  padding:12px 18px;
  display:flex;
  gap:14px;
  align-items:center;
  justify-content:space-between;
}
.brand{display:flex; flex-direction:column; gap:2px}
.brand strong{font-size:15px; letter-spacing:.2px}
.brand span{font-size:12px; color:var(--muted)}
nav{display:flex; gap:1px; flex-wrap:wrap; justify-content:flex-end}
nav a{
  padding:8px 10px;
  border:1px solid transparent;
  border-radius:999px;
  color:var(--text);
  font-size:13px;
  opacity:.92;
}
nav a:hover{border-color:var(--line); text-decoration:none; opacity:1}
header.hero{
  margin-top:22px;
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:18px;
  align-items:stretch;
}
@media (max-width: 900px){
  header.hero{grid-template-columns:1fr}
}
.card{
  background: rgba(17,24,39,.85);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-left{padding:18px 18px 16px}
.hero-left h1{margin:0 0 6px; font-size:22px; letter-spacing:.2px}
.hero-left .affil{color:var(--muted); margin:0 0 16px}
.pillrow{display:flex; gap:10px; flex-wrap:wrap; margin:10px 0 0}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text);
  opacity:.95;
}
.pill small{color:var(--muted); font-size:12px}
.hero-right{padding:18px}
.photo{
<!  width:100%; >
  display: inline-block;
<!  aspect-ratio: 4/5; >
  border-radius: 14px;
<!  border: 1px dashed rgba(255,255,255,.25); >
<!  display:flex; >
  align-items:center;
  justify-content:center;
  color: var(--muted);
  background: rgba(255,255,255,.03);
  overflow:hidden;
}
.photo img{
  width:90%; 
  height:auto; 
  display: block;
<!  object-fit:cover; >
}
.note{margin-top:12px; font-size:12px; color:var(--muted)}
section{
  margin-top:22px;
  scroll-margin-top: 90px;
}
section .card{padding:18px 18px 16px}
section h2{margin:0 0 10px; font-size:20px}
.grid2{display:grid; grid-template-columns:1fr 1fr; gap:14px}
@media (max-width: 900px){.grid2{grid-template-columns:1fr}}
.list{margin:10px 0 0; padding-left:18px}
.list li{margin:6px 0}
.muted{color:var(--muted)}
.kpi{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
  margin-top:14px;
}
@media (max-width: 900px){.kpi{grid-template-columns:1fr}}
.kpi .box{
  border:1px solid var(--line);
  border-radius: 14px;
  padding:12px 12px 10px;
  background: rgba(255,255,255,.03);
}
.kpi .box strong{display:block; font-size:13px}
.kpi .box span{display:block; color:var(--muted); font-size:12px; margin-top:4px}
.course{
  border:1px solid var(--line);
  border-radius: 14px;
  padding:12px 12px 10px;
  background: rgba(255,255,255,.03);
  margin-top:10px;
}
.course h3{margin:0 0 6px; font-size:16px}
.meta{display:flex; gap:14px; flex-wrap:wrap; color:var(--muted); font-size:12px}
.meta b{color:var(--text); font-weight:600}
footer{
  margin-top:26px;
  padding-top:16px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  background: rgba(96,165,250,.12);
  border: 1px solid rgba(96,165,250,.25);
  color: var(--text);
  font-size: 12px;
  margin-top:10px;
  width: fit-content;
}
.badge i{
  width:8px; height:8px; border-radius:999px; display:inline-block; background: var(--accent);
}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}
.hero-right{
  padding:10px;
  display:flex;
}
.photo {
  width: 100%;
  height: auto;
  display: flex;              /* 핵심 */
  align-items: center;        /* 세로 중앙 */
  justify-content: center;    /* 가로 중앙 */
  background-color: rgba(17,24,39,.85); /* 페이지 배경과 동일하게 */  
/* aspect-ratio: 1.5 / 1; */
}
.photo img {
  width: 90%;
  height: auto;
  display: block;
}.