.topnav {
  background: rgba(40, 42, 44, 0.6);
}
.head-container #pc-topnav {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 999;
}
.head-container #pc-topnav .menu-pc {
  width: 100%;
  float: left;
}
.head-container #pc-topnav .menu-pc ul {
  float: left;
  padding: 0;
}
.head-container #pc-topnav .menu-pc ul li {
  -webkit-transition: all 0.6s;
  transition: 0.6s;
  float: left;
  cursor: pointer;
  user-select: none;
}
.head-container #pc-topnav .menu-pc ul li a {
  -webkit-transition: all 0.4s;
  transition: 0.4s;
  padding: 7px 14px;
  font-size: 15px;
  color: #fff;
  display: block;
}
.head-container #pc-topnav .menu-pc ul li:hover {
  background-color: #eeeeee;
  color: #000;
}
.head-container #pc-topnav .menu-pc ul li:hover a {
  color: #000;
}
.head-container #mobile-topnav {
  background: rgba(22, 23, 26, 0.9);
  display: none;
  -webkit-transition: all 0.6s;
  transition: 0.6s;
  position: fixed;
  width: 100%;
  top: 0;
  font-size: 25px;
  z-index: 999;
  text-align: center;
  color: #fff;
  height: 60px;
}
.head-container #mobile-topnav p {
  line-height: 60px;
}
.head-container #mobile-topnav .nav-toggle {
  width: 45px;
  height: 45px;
  text-align: center;
  vertical-align: middle;
  z-index: 100000;
  color: #fff;
  position: fixed;
  top: 11px;
  right: 5px;
}
.menu-mobile {
  position: fixed;
  top: 60px;
  z-index: 888;
  -webkit-transition: all 0.3s;
  transition: 0.3s;
  right: -240px;
  width: 240px;
  height: 100%;
  background: rgba(42, 42, 42, 0.9);
  padding: 20px;
}
.menu-mobile ul a {
  line-height: 3;
  color: rgba(255, 255, 255, 0.55);
}
.scrollUp {
  -webkit-transition: all 0.4s;
  transition: 0.4s;
  top: 0 !important;
}
.scrollDown {
  -webkit-transition: all 0.4s;
  transition: 0.4s;
  top: -41px !important;
}
.toolsUp {
  -webkit-transition: all 0.6s;
  transition: 0.6s;
  bottom: 60px;
}
.toolsDown {
  -webkit-transition: all 0.6s;
  transition: 0.6s;
  bottom: 20px;
}
.backTopUp {
  -webkit-transition: all 0.5s;
  transition: 0.5s;
  bottom: 20px;
}
.backTopDown {
  -webkit-transition: all 0.4s;
  transition: 0.4s;
  bottom: -50px;
}
.tools {
  position: fixed;
  right: 20px;
  z-index: 99;
}
.tool {
  background-color: #848484;
  opacity: 0.7;
  cursor: pointer;
  color: #fcfcfc;
  margin-top: 10px;
}
.backTop {
  position: fixed;
  right: 20px;
  z-index: 99;
}
.tool:hover {
  opacity: 0.9;
}
.tool-logo {
  text-align: center;
  width: 30px;
  height: 30px;
  display: table-cell;
  vertical-align: middle;
  color: #fff;
  font-size: 15px;
}
.social {
  margin: 20px auto;
}
.social span {
  font-size: 40px;
  color: #8a9fab;
}