/* =========================
   テキスト折り返し
========================= */
.break-text {
  overflow-wrap: break-word;
  white-space: normal;
}

/* =========================
   Back to Top
========================= */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 55px;
  height: 55px;
  background: var(--btn-bg);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 6px 12px rgba(0,0,0,0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 15px rgba(0,0,0,0.3);
}

.back-to-top::before {
  content: "";
  width: 16px;
  height: 16px;
  border-bottom: 3px solid var(--btn-icon);
  border-right: 3px solid var(--btn-icon);
  transform: rotate(-135deg);
  display: block;
}


#menu {
  position: fixed;
  top: 0;
  right: -395px;
  width: 350px;
  height: 100%;
  background: #222222cc;
  transition: 0.3s;
  z-index:1000;

  padding-left:25px;

  /* 追加 */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  /* ぼかし線 */
  box-shadow: -13px -1px 10px rgb(114 255 215 / 15%);
}
#menu.open {
  right: 0;
}

#menuBtn {
  position: fixed;
  top: 20px;
  right: 20px;

  z-index: 1000;

  width: 50px;
  height: 50px;

  border: none;
  border-radius: 8px;
  background: #333;
  color: #fff;
  font-size: 24px;
  cursor: pointer;

  background: rgba(51,51,51,0.8);
  backdrop-filter: blur(4px);
}

#menuBtn:hover {
  opacity: 0.8;
}