:root {
  color-scheme: dark;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #E1E1E4;
  background: #202123;
  line-height: 1.7;
}
* { box-sizing: border-box; }
body { margin: 0; }
main {
  min-height: 100vh;
  min-height: 100svh;
  max-width: 760px;
  margin: auto;
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.logo { width: 160px; max-width: 100%; height: auto; }
.brand { margin: 20px 0 12px; font-size: 24px; font-weight: 700; }
h1 { margin: 0 0 20px; font-size: clamp(24px, 4vw, 36px); line-height: 1.4; word-break: keep-all; }
p { margin: 0; overflow-wrap: anywhere; }
.intro { font-size: 17px; }
.notice { margin-top: 12px; color: #B8B8BE; font-size: 15px; }