html, body, .content {
  margin: 0;
  /* height: 100%;
  width: 100%; */
}
html, body{

  height: 100%;
  
  }
  
  *{
  
  -webkit-overflow-scrolling: touch;
  
  }
body{
  font-family: PingFang SC;
  background: #000;
  /* height: calc(var(--vh) * 100); */
 width: 100%
}
:root {
  --vh: 1vh;
}

.credit, .github {
  position: fixed;
  z-index: 1000;
  color: #555;
}

.credit a, .github a {
  color: #555;
  text-decoration: none;
}

.credit a:hover, .github a:hover {
  color: #FFF;
  text-shadow: 0 0 8px #6BFF38;
  transition: all 0.2s ease-out;
}

.credit {
  top: 10px;
  left: 10px;
}

.github {
  top: 10px;
  right: 10px;
}

.help {
  position: fixed;
  z-index: 1000;
  color: #6BFF38;
  text-align: center;
  bottom: 60px;
  width: 100%;
  font-size: 30px;
}

/* .blink {
  background-color: #6BFF38;
  position: relative;
  display: inline-block;
  width: 4px;
  top: 8px;
  height: 33px;
  margin-left: 15px;
  animation: 0.8s blink infinite;
} */
.page2 img{
  width: 1.05rem;
  height: 1.05rem;
}
.btok_b{
  position: fixed;
  z-index: 10;
  top: 35%;
  left: .8rem;

}
.b{
  display: none;
  position: fixed;
  top: 35%;
  z-index: 11;
  left: .8rem;
  
}
.btok_t{
  position: fixed;
  z-index: 10;
  top: 35%;
  left: 2.4rem;

}
.t{
  display: none;
  position: fixed;
  top: 35%;
  z-index: 11;
  left:2.4rem;
  
}
.btok_o{
  position: fixed;
  z-index: 10;
  top: 35%;
  left: 4rem;

}
.o{
  display: none;
  position: fixed;
  top: 35%;
  z-index: 11;
  left: 4rem;
  
}
.btok_k{
  position: fixed;
  z-index: 10;
  top: 35%;
  left: 5.6rem;

}
.k{
  display: none;
  position: fixed;
  top: 35%;
  z-index: 11;
  left: 5.6rem;
  
}

.animb{
  display: block;
  animation:b 3s ease;
}
.animt{
  display: block;
  animation:t 3s ease;
}
.animo{
  display: block;
  animation:o 3s ease;
}
.animk{
  display: block;
  animation:k 3s ease-in-out  ;
}
@keyframes b
{
	0%   {left:.2rem; top:1000px;}
	50% { left:.5rem; top:50px;}
  85%   {left:.8rem; top:35%;transform:scale(1);}
  90%   {left:.8rem; top:35%;transform:scale(1.5);}
	100% { left:.8rem; top:35%;}
}
@keyframes t
{
	0%   {left:.5rem; top:1000px;transform:scale(1);}
	50%   { left:1.2rem; top:50px;}
  85%   {left:2.4rem; top:35%;transform:scale(1);}
  90%   {left:2.4rem; top:35%;transform:scale(1.5);}
	100% {left:2.4rem; top:35%;transform:scale(1); }
}
@keyframes o
{
	0%   {left:2rem; top:1000px;}
	50% { left:3rem; top:50px;}
  85%   {left:4rem; top:35%;transform:scale(1);}
  90%   {left:4rem; top:35%;transform:scale(1.5);}
	100% { left:4rem; top:35%; transform:scale(1);}
}
@keyframes k
{
	0%   {left:4rem; top:1000px;}
	50% { left:5rem; top:50px;}
  85%   {left:5.6rem; top:35%;transform:scale(1);}
  90%   {left:5.6rem; top:35%;transform:scale(1.5);}
	100% { left:5.6rem; top:35%;transform:scale(1);}
}
@keyframes blink {
  0% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}


.doc-btn {
  position: absolute;
  bottom: 0.2rem;
  right: 0.3rem;
  z-index: 10;
}
.doc-btn a {
  display: block;
  width: 80px;
  height: 25px;
  line-height: 25px;
  border-radius: 25px;
  text-align: center;
  background: linear-gradient(-90deg, #FF9900, #FFBD00);
  font-family: PingFang SC;
  font-weight: 500;
  font-size: 14px;
  color: #FFFFFF;
}

.hidden {
  display: none !important;
}