body{
    font-family:  Helvetica Neue, Helvetica, Arial, sans-serif;
}
.index-box{
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}
.index-bg{
  height: 100%;
  width: 100%;
  max-width: none;
  right: 50%;
  position: absolute;
  display: none;
  transition: 0.5s ease-in;
  /* opacity: 0.7; */
}
.index-logo{
  position: absolute;
  top: 35%;
  right: 50%;
  margin-right: -132.5px;
  margin-top: -37.5px;
  z-index: 20;
}
.logo-sc {
  width: 170px;
  height: 170px;
  position: absolute;
  top: 35%;
  right: 50%;
  margin-right: -85px;
  margin-top: -85px;
  background-color: #eb6100;
  z-index: 10;
  border-radius: 100%;
  animation: scale 3s ease-in-out infinite;
}
.logo-bc {
  width: 275px;
  height: 275px;
  position: absolute;
  top: 35%;
  right: 50%;
  margin-right: -137.5px;
  margin-top: -137.5px;
  background-color: rgba(235, 97, 0, 0.55);
  border-radius: 100%;
  animation: scale2 3s ease-in-out infinite;
  animation-direction:alternate;
}
@keyframes scale {
   0% {transform: scale(0.9);}
   25%{transform: scale(1);}
   50%{transform: scale(1.2);}
   100%{transform: scale(0.9);}
}
@keyframes scale2 {
   0% {transform: scale(0.9);}
   25%{transform: scale(1.2);}
   50%{transform: scale(1);}
   100%{transform: scale(0.9);}
}
.float-box{
  position: absolute;
  z-index: 30;
}
.float-c{
  position: relative;
  width: 80px;
  height: 80px;
  float: left;
  transition: ease-in 0.2s;
}
.float-box:hover .float-c{
  transform: scale(0.8);
}
.float-sc{
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 1);
  border-radius: 100%;
  position: absolute;
  top: 50%;
  right: 50%;
  margin-right: -25px;
  margin-top: -25px;
}
.float-bc{
  width: 80px;
  height: 80px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 100%;
  position: absolute;
  top: 50%;
  right: 50%;
  margin-right: -40px;
  margin-top: -40px;
}
.float-box h4{
  color: white;
  float: left;
  margin:0 10px;
  line-height: 80px;
  font-size: 20px;
  font-weight: normal;
}
.a{
  bottom: 35%;
  left: 18%;
}
.a:hover .float-sc{
  animation: scale3 2s ease-in-out infinite;
}
.a:hover .float-bc{
  animation: scale4 2s ease-in-out infinite;
}
@keyframes scale3 {
   0% {transform: scale(0.9);}
   25%{transform: scale(1.1);}
   50%{transform: scale(1);}
   100%{transform: scale(0.9);}
}
@keyframes scale4 {
   0% {transform: scale(1);}
   25%{transform: scale(0.9);}
   50%{transform: scale(1.1);}
   100%{transform: scale(1);}
}
.c{
  bottom:45%;
  left: 70%;
}
.c:hover .float-sc{
  animation: scale4 2s ease-in-out infinite;
}
.c:hover .float-bc{
  animation: scale3 2s ease-in-out infinite;
}
.b{
  bottom: 15%;
  left: 45%;
}
.b:hover .float-sc{
  animation: scale2 2s ease-in-out infinite;
}
.b:hover .float-bc{
  animation: scale1 2s ease-in-out infinite;
}
.index-nav{
  width: 70%;
  margin: 0 auto;
  height: 100px;
  position: absolute;
  top: 0;
  right: 0;
  z-index: 30;
}
.index-nav ul{
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
  height: 100%;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.index-nav li{
  float: left;
  text-align: center;
  font-size: 16px;
  line-height: 100px;
  transition: 0.2s ease-in;
  height: 100%;
  width: 13%;
}
.index-nav li a{
  padding: 10%;
  color: white;
  transition: 0.2s ease-out;
  font-size: 14px;
  width: fit-content;
}
.index-nav li:hover a{
  border-bottom: 3px solid #eb6100;
  padding: 15%;
  color: #eb6100;
  font-size:16px;
  font-weight: bold;
}