/* 공통 — 채널 테마 CSS 로 덮어쓰기 */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Malgun Gothic", sans-serif;
  line-height: 1.5;
  color: #0e1f1e;
  background: #f1f3f0;
}
.err { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.err__box { max-width: 420px; text-align: center; }
.channel-preview { max-width: 430px; margin: 0 auto; padding: 24px 18px 48px; }
.channel-preview__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: #ffc24b;
  color: #1a1200;
  margin-bottom: 12px;
}
.channel-preview h1 { font-size: 1.35rem; margin: 0 0 8px; }
.channel-preview p { color: #41524f; font-size: 0.95rem; margin: 0 0 16px; }
.channel-preview code { font-size: 0.85rem; word-break: break-all; }