/* 右侧悬浮统一小按钮（与交流群 FAB 同款） */
.xu5-cf-fab,
.xu5-float-btn {
  position: fixed !important;
  right: 20px !important;
  width: 36px !important;
  height: 36px !important;
  min-width: 36px !important;
  min-height: 36px !important;
  max-width: 36px !important;
  max-height: 36px !important;
  padding: 0 !important;
  margin: 0 !important;
  background: rgba(255, 255, 255, 0.96) !important;
  border: 1px solid #e6e6e6 !important;
  border-radius: 50% !important;
  cursor: pointer !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  z-index: 9997 !important;
  color: #666 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
  box-sizing: border-box !important;
  overflow: hidden !important;
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, opacity .2s ease, visibility .2s ease !important;
}
.xu5-cf-fab:hover,
.xu5-float-btn:hover {
  color: #409eff !important;
  border-color: #a0cfff !important;
  box-shadow: 0 3px 10px rgba(64, 158, 255, 0.18) !important;
  transform: translateY(-1px) !important;
}
.xu5-cf-fab:active,
.xu5-float-btn:active {
  transform: translateY(0) !important;
}
.xu5-cf-fab svg,
.xu5-float-icon {
  width: 18px !important;
  height: 18px !important;
  min-width: 18px !important;
  min-height: 18px !important;
  max-width: 18px !important;
  max-height: 18px !important;
  color: inherit !important;
  flex-shrink: 0 !important;
  display: block !important;
}
#xu5-back-to-top-btn {
  bottom: 48px !important;
  opacity: 0 !important;
  visibility: hidden !important;
  transform: translateY(8px) !important;
  pointer-events: none !important;
}
#xu5-back-to-top-btn.xu5-btt-visible {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
  pointer-events: auto !important;
}

/* 打赏悬浮：主题蓝实心，与页内打赏同色系 */
#xu5-float-donation-btn {
  bottom: 92px !important;
  background: #409eff !important;
  border-color: #409eff !important;
  color: #fff !important;
  opacity: 1 !important;
  visibility: visible !important;
}
#xu5-float-donation-btn:hover {
  background: #337ecc !important;
  border-color: #337ecc !important;
  color: #fff !important;
  box-shadow: 0 3px 10px rgba(64, 158, 255, 0.22) !important;
}
.xu5-float-text {
  font-size: 15px !important;
  font-weight: 700 !important;
  color: #fff !important;
  line-height: 1 !important;
}

/* 有交流悬浮时抬高打赏 */
body.xu5-cf-n1 #xu5-float-donation-btn { bottom: 136px !important; }
body.xu5-cf-n2 #xu5-float-donation-btn { bottom: 180px !important; }

@media screen and (max-width: 768px) {
  .xu5-cf-fab,
  .xu5-float-btn {
    right: 15px !important;
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    min-height: 34px !important;
    max-width: 34px !important;
    max-height: 34px !important;
  }
  .xu5-cf-fab svg,
  .xu5-float-icon {
    width: 17px !important;
    height: 17px !important;
    min-width: 17px !important;
    min-height: 17px !important;
    max-width: 17px !important;
    max-height: 17px !important;
  }
  #xu5-back-to-top-btn { bottom: 40px !important; }
  #xu5-float-donation-btn { bottom: 81px !important; }
  body.xu5-cf-n1 #xu5-float-donation-btn { bottom: 122px !important; }
  body.xu5-cf-n2 #xu5-float-donation-btn { bottom: 163px !important; }
}
@media screen and (max-width: 480px) {
  .xu5-cf-fab,
  .xu5-float-btn {
    right: 10px !important;
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    min-height: 32px !important;
    max-width: 32px !important;
    max-height: 32px !important;
  }
  .xu5-cf-fab svg,
  .xu5-float-icon {
    width: 16px !important;
    height: 16px !important;
    min-width: 16px !important;
    min-height: 16px !important;
    max-width: 16px !important;
    max-height: 16px !important;
  }
  #xu5-back-to-top-btn { bottom: 30px !important; }
  #xu5-float-donation-btn { bottom: 68px !important; }
  body.xu5-cf-n1 #xu5-float-donation-btn { bottom: 106px !important; }
  body.xu5-cf-n2 #xu5-float-donation-btn { bottom: 144px !important; }
}