* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --cmcc-blue: #0085D0;
  --cmcc-dark-blue: #005AA0;
  --cmcc-light-blue: #E5F2FB;
  --cmcc-orange: #FF6B00;
  --cmcc-red: #E60012;
  --text-primary: #333333;
  --text-secondary: #666666;
  --bg-light: #F5F5F5;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
  background: linear-gradient(135deg, var(--cmcc-light-blue) 0%, #FFFFFF 100%);
  min-height: 100vh;
  color: var(--text-primary);
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cmcc-blue) 0%, var(--cmcc-dark-blue) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 133, 208, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 133, 208, 0.4);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--cmcc-blue);
  border: 2px solid var(--cmcc-blue);
}

.btn-secondary:hover {
  background: var(--cmcc-light-blue);
}

.btn-danger {
  background: var(--cmcc-red);
  color: #FFFFFF;
}

.btn-danger:hover {
  background: #C40010;
}

.btn-small {
  padding: 8px 16px;
  font-size: 14px;
}

.card {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 24px;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: #FFFFFF;
  border-radius: 16px;
  padding: 32px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-icon {
  font-size: 80px;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 28px;
  color: var(--cmcc-dark-blue);
  margin-bottom: 8px;
}

.modal-prize {
  font-size: 32px;
  font-weight: bold;
  color: var(--cmcc-orange);
  margin-bottom: 24px;
}

.modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}