* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang TC", "Noto Sans TC", sans-serif;
  background: #EAF2FB;
  color: #2A3B4D;
  min-height: 100vh;
  padding: calc(env(safe-area-inset-top, 0px) + 20px) 16px calc(env(safe-area-inset-bottom, 0px) + 24px);
}
.container {
  max-width: 480px;
  margin: 0 auto;
}
h1 {
  font-size: 20px;
  color: #3B7DBF;
  text-align: center;
  margin-bottom: 16px;
}
.card {
  background: #fff;
  border-radius: 16px;
  padding: 24px 20px;
  box-shadow: 0 2px 8px rgba(59, 125, 191, 0.12);
  margin-bottom: 16px;
}
.state {
  text-align: center;
  padding: 32px 20px;
  font-size: 15px;
  color: #6B7C8F;
  line-height: 1.6;
}
.state.error {
  color: #C0392B;
}
.state .error-code {
  display: inline-block;
  margin-top: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  background: #FDECEA;
  border-radius: 8px;
  padding: 4px 10px;
}
.hidden {
  display: none;
}
.btn {
  display: block;
  width: 100%;
  border: none;
  border-radius: 12px;
  background: #3B7DBF;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 14px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  font-family: inherit;
}
.btn:disabled {
  background: #A9C3DD;
}
.btn.secondary {
  background: #fff;
  color: #3B7DBF;
  border: 1.5px solid #3B7DBF;
}
.note {
  font-size: 13px;
  color: #6B7C8F;
  text-align: center;
  line-height: 1.6;
  margin-top: 12px;
}
.ticket-banner {
  background: #EAF7EF;
  border-radius: 12px;
  padding: 14px;
  text-align: center;
  font-size: 14px;
  color: #21774A;
  line-height: 1.7;
  margin-top: 16px;
}
.ticket-banner .serial {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 700;
  font-size: 16px;
}