.kuuge-support-widget {
  position: fixed;
  z-index: 60;
  right: calc(24px + env(safe-area-inset-right, 0px));
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 52px;
  max-width: calc(100vw - 48px);
  padding: 12px 20px;
  color: #fff;
  background: #246bfd;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 999px;
  box-shadow: 0 8px 26px rgba(36, 107, 253, .25), 0 2px 6px rgba(15, 23, 42, .12);
  font: 700 14px/1.4 "Noto Sans SC", "DM Sans", "Segoe UI", sans-serif;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background .18s ease, box-shadow .18s ease, transform .18s ease;
}

.kuuge-support-widget:visited { color: #fff; }
.kuuge-support-widget svg {
  display: block;
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kuuge-support-widget:focus-visible {
  outline: 3px solid #152d61;
  outline-offset: 4px;
}
@media (hover: hover) {
  .kuuge-support-widget:hover {
    color: #fff;
    background: #1854cf;
    box-shadow: 0 10px 30px rgba(36, 107, 253, .32);
    transform: translateY(-2px);
  }
}
@media (max-width: 640px) {
  .kuuge-support-widget {
    right: calc(16px + env(safe-area-inset-right, 0px));
    bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    min-height: 48px;
    padding: 11px 16px;
    gap: 7px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .kuuge-support-widget { transition: none; }
  .kuuge-support-widget:hover { transform: none; }
}
@media print {
  .kuuge-support-widget { display: none; }
}