/* 按钮波纹效果样式 */
.btn-primary, .btn-secondary {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* 通知系统样式 */
.feedback-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 15px 20px;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  z-index: 10000;
  min-width: 300px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.feedback-notification.show {
  transform: translateX(0);
}

.feedback-notification.success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.feedback-notification.error {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.feedback-notification::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  animation: notificationProgress 5s linear;
}

@keyframes notificationProgress {
  from { width: 100%; }
  to { width: 0%; }
}

/* FAQ 动态样式 */
.faq-item.active .faq-answer {
  max-height: none !important;
}

.faq-item .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}