* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: #0b1a33;
  background: radial-gradient(1200px 600px at 10% 10%, #f0f6ff, #e9eef7 40%, #e6ebf4 60%, #e2e8f0);
}

.page {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-items: center;
  justify-items: center;
  padding: 32px 20px;
}

.hero {
  text-align: center;
  margin-bottom: 24px;
}

.title {
  margin: 0 0 8px;
  font-weight: 800;
  letter-spacing: 0.06em;
  font-size: clamp(24px, 4vw, 36px);
}

.subtitle {
  margin: 0;
  color: #4a5c78;
  font-size: 14px;
}

.actions {
  width: min(560px, 92vw);
  background: #ffffffcc;
  backdrop-filter: blur(6px);
  border: 1px solid #e3ebf5;
  border-radius: 18px;
  box-shadow: 0 12px 36px rgba(2, 41, 89, 0.12);
  padding: 22px;
  display: grid;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: #fff;
  transition: transform 0.06s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  will-change: transform;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover { background: linear-gradient(90deg, #1d4ed8, #336fe6); }

.btn-wechat {
  background: linear-gradient(90deg, #16a34a, #22c55e);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}
.btn-wechat:hover { background: linear-gradient(90deg, #15803d, #16a34a); }

.btn-outline {
  background: #fff;
  color: #1f2a44;
  border-color: #d7e1ee;
}
.btn-outline:hover {
  border-color: #b7c7dd;
  background: #f9fbff;
  color: #0b1a33;
}

.footer {
  text-align: center;
  margin-top: 28px;
  color: #52627a;
  font-size: 12px;
}

.footer p { margin: 6px 0; }