/* Toast 提示框 */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: rgba(255, 255, 255, 0.95);
  padding: 14px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: var(--z-index-toast);
  opacity: 0;
  transition: transform var(--transition-base) ease, opacity var(--transition-base) ease;
  backdrop-filter: blur(10px);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.success {
  background: rgba(246, 255, 237, 0.95);
  border: 1px solid #b7eb8f;
  color: #389e0d;
}

.toast.error {
  background: rgba(255, 242, 240, 0.95);
  border: 1px solid #ffccc7;
  color: var(--color-error);
}

.toast i {
  font-size: 18px;
}