.shoot_icon {
  width: 36px;
}

/* 開始按鈕（全寬且易點擊） */
#btnStart {
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f39800;
  font-size: clamp(20px, 4.5vw, 25px);
  border-radius: 130px;
  border: 0;
  color: #000000;
  cursor: pointer;
  transition: transform 0.06s ease, opacity 0.2s ease;
  touch-action: manipulation;
}
#btnStart:active {
  transform: scale(0.98);
}
#btnStart:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* 拍照中提示 */
.shooting {
  display: none;
  width: 100%;
  margin-top: 8px;
  font-size: clamp(18px, 4.8vw, 22px);
  font-weight: 700;
  text-align: center;
  color: #ffffff;
}
.shotting_icon {
  display: inline-block;
  width: 80px;
}
.shooting span {
  display: inline-block;
  width: 100%;
  margin-top: 10px;
}