.support-float {
  position: fixed;
  right: 24px;
  bottom: 96px;
  z-index: 1000;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 56px;
  padding: 14px 10px;
  border-radius: 28px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(180deg, #fb7607 0%, #e54d00 100%);
  box-shadow:
    0 10px 28px rgba(251, 118, 7, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.18) inset;
  transition:
    transform 220ms cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

.support-float::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(251, 118, 7, 0.35), rgba(229, 77, 0, 0.35));
  z-index: -1;
  opacity: 0.75;
  animation: supportFloatPulse 2.8s ease-out infinite;
}

.support-float:hover {
  transform: translateY(-2px);
  box-shadow:
    0 14px 32px rgba(251, 118, 7, 0.36),
    0 0 0 1px rgba(255, 255, 255, 0.22) inset;
}

.support-float:active {
  transform: translateY(0) scale(0.98);
}

.support-float-icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.support-float-icon svg {
  width: 24px;
  height: 24px;
  display: block;
}

.support-float-text {
  writing-mode: vertical-rl;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1;
}

@keyframes supportFloatPulse {
  0% {
    transform: scale(1);
    opacity: 0.75;
  }
  70% {
    transform: scale(1.12);
    opacity: 0;
  }
  100% {
    transform: scale(1.12);
    opacity: 0;
  }
}

@media (max-width: 767px) {
  .support-float {
    right: 16px;
    bottom: 72px;
    width: 52px;
    padding: 12px 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .support-float::before {
    animation: none;
  }

  .support-float {
    transition: none;
  }
}