.tiktok_loading_container{
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  z-index: 2000;
  background: #000;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s, visibility 0s 0.5s;
}
.tiktok_loading_container.move{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.tiktok_loading_wrapper{
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: auto;
}

:root{
  --aqua:#00f2ea;
  --pink:#ff0050;
  --scale:1.2;
  --x:15px;
}

.loader{
  display: flex;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s, visibility 0s 0.25s;
}
.loader.hide{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.circle{
  height: 1rem;
  width: 1rem;
  border-radius: 0;
}
.left-circle{
  background: var(--pink);
  z-index: 1;
  animation: left-c 1s infinite;
}
.right-circle{
  z-index: 2;
  background: var(--aqua);
  animation: right-c 1s infinite;
}

@keyframes left-c{
  0%   { z-index:1; transform:scale(1) translateX(-10px); }
  49%  { z-index:1; transform:scale(var(--scale)) translateX(var(--x)); }
  51%  { z-index:3; transform:scale(var(--scale)) translateX(var(--x)); }
  99%  { z-index:3; transform:scale(1) translateX(-10px); }
}
@keyframes right-c{
  0%   { z-index:2; transform:scale(var(--scale)) translateX(0); }
  49%  { z-index:2; transform:scale(1) translateX(-25px); }
  51%  { z-index:2; transform:scale(1) translateX(-25px); }
  99%  { z-index:2; transform:scale(var(--scale)) translateX(0); }
}

#tiktok_logo{
  position: fixed;           /* 戻す：flex レイアウトから外してセンタリングを維持 */
  opacity: 0;
  visibility: hidden;
  transform: translateY(100%);
  max-width: 450px;
  pointer-events: none;      /* 常にクリック貫通（visible でも阻害しない） */
  transition: opacity 0.7s, transform 0.7s;
}
#tiktok_logo.move{
  opacity: 1;
  visibility: visible;       /* 戻す：ベースの hidden を上書きして表示 */
  transform: translateY(0);
  /* transition はベース側に移動済み */
}
@media (max-width: 500px){
  #tiktok_logo{
    width: 80%;
    max-width: 350px;
  }
}