html,body,a{ 
	width:100%;
	height:100%;
	margin: 0;
	background:#f0f0f0;
	text-decoration: none;
}
/* ---- particles.js container ---- */

#particles-js{
  width: 100%;
  height: 100%;
  background-color: #f0f0f0;
  background-image: url('');
  background-size: cover;
  background-position: 50% 50%;
  background-repeat: no-repeat;
}


/* ----  gushici box  ---- */

.box{
	width:100%;
	height:100px;
	top:calc(50% - 60px);
	position:fixed;
}
.box>h1{
	color:#333;
	margin:0 auto;
	font-size:1.5em;
	text-align:center;
}
.box>span{
	display:block;
	text-align:center;
	font-size:1em;
	margin-top:20px;
	color:#777;
}


@media screen and (max-width: 450px) {
.box>h1{font-size: 1.1em;}
.box>span{font-size: 0.7em;}
}

@media screen and (min-width: 768px) {
.box>h1{font-size: 2.2em;}
.box>span{font-size: 1.3em;}
}

@media screen and (min-width: 1024px) {
.box>h1{font-size: 3em;}
.box>span{font-size: 2em;}
}



/*------  menu  ------*/
.float-btn-group {
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  position: fixed;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

.btn-float {
  width: 50px;
  height: 50px;
  line-height: 50px;
  display: inline-block;
  font-size: 18px;
  background: rgba(255, 143, 143, 0.2);
  text-align: center;
  position: relative;
  -webkit-transition: 0.3s;
  transition: 0.3s;
  border-radius: 50%;
  cursor: pointer;
}
.btn-float:hover {
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15), 0 4px 15px rgba(0, 0, 0, 0.13);
}

.btn-toggle *{
  transition: .25s ease-in-out;
  box-sizing: border-box;
}


.btn-toggle span {
  display: block;
  background: #566973;
  border-radius: 2px;
}

.btn-toggle .hamburger {
  position: absolute;
  height: 100%;
  width: 100%;
}
.btn-toggle .hamburger span {
  width: 30px;
  height: 2px;
  position: relative;
  top: 12px;
  left: 10px;
  margin: 5px 0;
}
.btn-toggle .hamburger span:nth-child(1) {
  transition-delay: .5s;
}
.btn-toggle .hamburger span:nth-child(2) {
  transition-delay: .625s;
}
.btn-toggle .hamburger span:nth-child(3) {
  transition-delay: .75s;
}
.btn-toggle .cross {
  position: absolute;
  height: 100%;
  width: 100%;
  transform: rotate(45deg);
}
.btn-toggle .cross span:nth-child(1) {
  height: 0%;
  width: 2px;
  position: absolute;
  top: 15%;
  left: 50%;
  transition-delay: 0s;
}
.btn-toggle .cross span:nth-child(2) {
  width: 0%;
  height: 2px;
  position: absolute;
  left: 15%;
  top: 50%;
  transition-delay: .25s;
}


.float-btn-group.open .hamburger span {
  width: 0%;
}
.float-btn-group.open .hamburger span:nth-child(1) {
  transition-delay: 0s;
}
.float-btn-group.open .hamburger span:nth-child(2) {
  transition-delay: .125s;
}
.float-btn-group.open .hamburger span:nth-child(3) {
  transition-delay: .25s;
}
.float-btn-group.open .cross span:nth-child(1) {
  height: 70%;
  transition-delay: .625s;
}
.float-btn-group.open .cross span:nth-child(2) {
  width: 70%;
  transition-delay: .375s;
}

/* ----  icon  ---- */

.float-btn-group .btn-list {
  position: absolute;
  right: 0;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}





 .float-btn-group .btn-list .btn-float {
  position: absolute;
  right: 0;
  top: 0;
  opacity: 0;
  -ms-transform: scale(0, 0);
  -webkit-transform: scale(0, 0);
  transform: scale(0, 0);
}
 .float-btn-group .btn-list .btn-float:nth-child(1) {
  -moz-transition: 0.2s 0.3s;
  -o-transition: 0.2s 0.3s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.3s;
  -webkit-transition: 0.2s 0.3s;
          transition: 0.2s 0.3s;
}
 .float-btn-group .btn-list .btn-float:nth-child(2) {
  -moz-transition: 0.2s 0.5s;
  -o-transition: 0.2s 0.5s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.5s;
  -webkit-transition: 0.2s 0.5s;
          transition: 0.2s 0.5s;
}
 .float-btn-group .btn-list .btn-float:nth-child(3) {
  -moz-transition: 0.2s 0.7s;
  -o-transition: 0.2s 0.7s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.7s;
  -webkit-transition: 0.2s 0.7s;
          transition: 0.2s 0.7s;
}
 .float-btn-group .btn-list .btn-float:nth-child(4) {
  -moz-transition: 0.2s 0.92s;
  -o-transition: 0.2s 0.92s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.92s;
  -webkit-transition: 0.2s 0.92s;
          transition: 0.2s 0.92s;
}
.float-btn-group .btn-list .btn-float:nth-child(5) {
  -moz-transition: 0.2s 1.2s;
  -o-transition: 0.2s 1.2s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 1.2s;
  -webkit-transition: 0.2s 1.2s;
          transition: 0.2s 1.2s;
}
.float-btn-group .btn-list .btn-float:nth-child(6) {
  -moz-transition: 0.2s 1.4s;
  -o-transition: 0.2s 1.2s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 1.4s;
  -webkit-transition: 0.2s 1.4s;
          transition: 0.2s 1.4s;
}
 .float-btn-group.open .btn-list .btn-float {
  opacity: 1;
  -ms-transform: scale(0.9, 0.9);
  -webkit-transform: scale(0.9, 0.9);
  transform: scale(0.9, 0.9);
}
 .float-btn-group.open .btn-list .btn-float:nth-child(1) {
  top: -385px;
  -moz-transition: 0.2s 1.3s;
  -o-transition: 0.2s 1.3s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 1.3s;
  -webkit-transition: 0.2s 1.3s;
          transition: 0.2s 1.3s;
}
 .float-btn-group.open .btn-list .btn-float:nth-child(2) {
  top: -330px;
  -moz-transition: 0.2s 1.1s;
  -o-transition: 0.2s 1.1s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 1.1s;
  -webkit-transition: 0.2s 1.1s;
          transition: 0.2s 1.1s;
}
 .float-btn-group.open .btn-list .btn-float:nth-child(3) {
  top: -275px;
  -moz-transition: 0.2s 0.9s;
  -o-transition: 0.2s 0.9s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.9s;
  -webkit-transition: 0.2s 0.9s;
          transition: 0.2s 0.9s;
}
 .float-btn-group.open .btn-list .btn-float:nth-child(4) {
  top: -220px;
  -moz-transition: 0.2s 0.7s;
  -o-transition: 0.2s 0.7s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.7s;
  -webkit-transition: 0.2s 0.7s;
          transition: 0.2s 0.7s;
}
.float-btn-group.open .btn-list .btn-float:nth-child(5) {
  top: -165px;
  -moz-transition: 0.2s 0.5s;
  -o-transition: 0.2s 0.5s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.5s;
  -webkit-transition: 0.2s 0.5s;
          transition: 0.2s 0.5s;
}
.float-btn-group.open .btn-list .btn-float:nth-child(6) {
  top: -110px;
  -moz-transition: 0.2s 0.3s;
  -o-transition: 0.2s 0.3s;
  -webkit-transition: 0.2s;
  -webkit-transition-delay: 0.3s;
  -webkit-transition: 0.2s 0.3s;
          transition: 0.2s 0.3s;
}