/* LINE・Chatwork 固定ボタン */
#sib-line-chatwork-buttons {
  position: fixed;
  bottom: 100px;
  right: 20px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
 
#sib-line-chatwork-buttons.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}
 
.sib-fixed-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 12px;
  text-decoration: none !important;
  box-shadow: 0 3px 10px rgba(0,0,0,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
 
.sib-fixed-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.3);
}
 
/* LINE: 公式SVGがすでに緑背景込み */
.sib-fixed-btn-line {
  background-color: transparent;
  overflow: hidden;
  padding: 0;
}
 
/* Chatwork: 白背景＋公式縦型カラーロゴ */
.sib-fixed-btn-chatwork {
  background-color: #fff;
  padding: 8px;
  width: 64px;
  height: 64px;
}
 
.sib-fixed-btn-icon {
  width: 100%;
  height: 100%;
  flex-shrink: 0;
}
 
.sib-fixed-btn-chatwork .sib-fixed-btn-icon {
  width: 100%;
  height: auto;
}
 
@media (max-width: 768px) {
  #sib-line-chatwork-buttons {
    display: none;
  }
}