:root {
  --bg: #fff5f7;
  --ink: #3a2a2e;
  --muted: #8a6f76;
  --accent: #e85d75;
  --card: rgba(255, 255, 255, 0.78);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #ffe0e8 0%, transparent 55%),
    radial-gradient(900px 500px at 110% 10%, #ffd6c9 0%, transparent 50%),
    var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px 24px;
}

.card {
  width: min(36rem, 100%);
  background: var(--card);
  border: 1px solid rgba(232, 93, 117, 0.12);
  border-radius: 24px;
  padding: 48px 36px 40px;
  box-shadow: 0 18px 50px rgba(180, 90, 110, 0.12);
  text-align: center;
}

.brand {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 650;
  letter-spacing: 0.12em;
}

.tagline {
  margin: 12px 0 0;
  font-size: 1.05rem;
  color: var(--accent);
}

.lead {
  margin: 28px 0 0;
  line-height: 1.75;
  color: var(--muted);
}

.hint {
  margin: 28px 0 0;
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
}

footer {
  margin-top: 36px;
  font-size: 13px;
}

footer a {
  color: #8b7a7e;
  text-decoration: none;
}

footer a:hover {
  color: var(--accent);
  text-decoration: underline;
}