@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,700,800');
@import url('https://fonts.googleapis.com/css?family=Lobster');
html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}
body {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.6rem;
  font-weight: 400;
}
h1 {
  margin-bottom: 0.5em;
  font-size: 3.6rem;
}
p {
  margin-bottom: 0.5em;
  font-size: 1.6rem;
  line-height: 1.6;
}
.button {
  display: inline-block;
  margin-top: 20px;
  padding: 8px 25px;
  border-radius: 4px;
}
.button-primary {
  position: relative;
  background-color: #c0ca33;
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
  transition: color 0.3s ease-in;
  z-index: 1;
}
.button-primary:hover {
  color: #c0ca33;
  text-decoration: none;
}
.button-primary::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  top: 0;
  background-color: #fff;
  border-radius: 4px;
  opacity: 0;
  -webkit-transform: scaleX(0.8);
  -ms-transform: scaleX(0.8);
  transform: scaleX(0.8);
  transition: all 0.3s ease-in;
  z-index: -1;
}
.button-primary:hover::after {
  opacity: 1;
  -webkit-transform: scaleX(1);
  -ms-transform: scaleX(1);
  transform: scaleX(1);
}
.overlay::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  top: 0;
  /* background-color: rgba(0, 0, 0, .3); */
}
.header-area {
  position: relative;
  height: 100vh;
  /* background: #5bc0de;
   */
  background: url(../img/background.jpg);
  background-attachment: fixed;
  background-position: center center;
  background-repeat: no-repear;
  background-size: cover;
}
.banner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  height: 100%;
  color: #fff;
  text-align: center;
  z-index: 1;
}
.banner h1 {
  font-weight: 800;
}
.banner p {
  font-weight: 700;
}
.banner .container .containertext{
  position: relative;
}
.banner .container .downdiv{
  position: absolute;
  z-index: 9999;
  top: 82%;
  left: 50%;
  margin-left: -25px;
}
.navbar {
  position: absolute;
  left: 0;
  top: 0;
  padding: 0;
  width: 100%;
  transition: background 0.6s ease-in;
  z-index: 99999;
}
.navbar .navbar-brand {
  font-family: 'Lobster', cursive;
  font-size: 2.5rem;
}
.navbar .navbar-toggler {
  position: relative;
  height: 50px;
  width: 50px;
  border: none;
  cursor: pointer;
  outline: none;
}
.navbar .navbar-toggler .menu-icon-bar {
  position: absolute;
  left: 15px;
  right: 15px;
  height: 2px;
  background-color: #fff;
  opacity: 0;
  -webkit-transform: translateY(-1px);
  -ms-transform: translateY(-1px);
  transform: translateY(-1px);
  transition: all 0.3s ease-in;
}
.navbar .navbar-toggler .menu-icon-bar:first-child {
  opacity: 1;
  -webkit-transform: translateY(-1px) rotate(45deg);
  -ms-sform: translateY(-1px) rotate(45deg);
  transform: translateY(-1px) rotate(45deg);
}
.navbar .navbar-toggler .menu-icon-bar:last-child {
  opacity: 1;
  -webkit-transform: translateY(-1px) rotate(135deg);
  -ms-sform: translateY(-1px) rotate(135deg);
  transform: translateY(-1px) rotate(135deg);
}
.navbar .navbar-toggler.collapsed .menu-icon-bar {
  opacity: 1;
}
.navbar .navbar-toggler.collapsed .menu-icon-bar:first-child {
  -webkit-transform: translateY(-7px) rotate(0);
  -ms-sform: translateY(-7px) rotate(0);
  transform: translateY(-7px) rotate(0);
}
.navbar .navbar-toggler.collapsed .menu-icon-bar:last-child {
  -webkit-transform: translateY(5px) rotate(0);
  -ms-sform: translateY(5px) rotate(0);
  transform: translateY(5px) rotate(0);
}
.navbar-dark .navbar-nav .nav-link {
  position: relative;
  color: #fff;
  font-size: 1.6rem;
}
.navbar-dark .navbar-nav .nav-link:focus, .navbar-dark .navbar-nav .nav-link:hover {
  color: #fff;
}
.navbar .dropdown-menu {
  padding: 0;
  background-color: rgba(0, 0, 0, .9);
}
.navbar .dropdown-menu .dropdown-item {
  position: relative;
  padding: 10px 20px;
  color: #fff;
  font-size: 1.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  transition: color 0.2s ease-in;
}
.navbar .dropdown-menu .dropdown-item:last-child {
  border-bottom: none;
}
.navbar .dropdown-menu .dropdown-item:hover {
  background: transparent;
  color: #c0ca33;
}
.navbar .dropdown-menu .dropdown-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  top: 0;
  width: 5px;
  background-color: #c0ca33;
  opacity: 0;
  transition: opacity 0.2s ease-in;
}
.navbar .dropdown-menu .dropdown-item:hover::before {
  opacity: 1;
}
.navbar.fixed-top {
  position: fixed;
  -webkit-animation: navbar-animation 0.6s;
  animation: navbar-animation 0.6s;
  background-color: rgba(0, 0, 0, .9);
}
.navbar.fixed-top.navbar-dark .navbar-nav .nav-link.active {
  color: #c0ca33;
}
.navbar.fixed-top.navbar-dark .navbar-nav .nav-link::after {
  background-color: #c0ca33;
}
@media screen and (max-width: 768px) {
  .navbar-brand {
    margin-left: 20px;
  }
  .navbar-nav {
    padding: 0 20px;
    background-color: rgba(0, 0, 0, .9);
  }
  .navbar.fixed-top .navbar-nav {
    background: transparent;
  }
}
@media screen and (min-width: 767px) {
  .banner {
    padding: 0 150px;
  }
  .banner h1 {
    font-size: 5rem;
  }
  .banner p {
    font-size: 2rem;
  }
  .navbar-dark .navbar-nav .nav-link {
    padding: 23px 15px;
  }
  .navbar-dark .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 15px;
    left: 30%;
    right: 30%;
    height: 1px;
    background-color: #fff;
    -webkit-transform: scaleX(0);
    -ms-transform: scaleX(0);
    transform: scaleX(0);
    transition: transform 0.1s ease-in;
  }
  .navbar-dark .navbar-nav .nav-link:hover::after {
    -webkit-transform: scaleX(1);
    -ms-transform: scaleX(1);
    transform: scaleX(1);
  }
  .dropdown-menu {
    min-width: 200px;
    -webkit-animation: dropdown-animation 0.3s;
    animation: dropdown-animation 0.3s;
    -webkit-transform-origin: top;
    -ms-transform-origin: top;
    transform-origin: top;
  }
}
@-webkit-keyframes navbar-animation {
  0% {
    opacity: 0;
    -webkit-transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    transform: translateY(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
  }
}
@keyframes navbar-animation {
  0% {
    opacity: 0;
    -webkit-transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    transform: translateY(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
  }
}
@-webkit-keyframes dropdown-animation {
  0% {
    -webkit-transform: scaleY(0);
    -ms-transform: scaleY(0);
    transform: scaleY(0);
  }
  75% {
    -webkit-transform: scaleY(1.1);
    -ms-transform: scaleY(1.1);
    transform: scaleY(1.1);
  }
  100% {
    -webkit-transform: scaleY(1);
    -ms-transform: scaleY(1);
    transform: scaleY(1);
  }
}
@keyframes dropdown-animation {
  0% {
    -webkit-transform: scaleY(0);
    -ms-transform: scaleY(0);
    transform: scaleY(0);
  }
  75% {
    -webkit-transform: scaleY(1.1);
    -ms-transform: scaleY(1.1);
    transform: scaleY(1.1);
  }
  100% {
    -webkit-transform: scaleY(1);
    -ms-transform: scaleY(1);
    transform: scaleY(1);
  }
}

/*提示箭头*/
@-moz-keyframes myMove {
  0% {padding-top:30px;}
  100% {padding-top:50px;}
}
@-webkit-keyframes myMove {
  0% {padding-top:30px;}
  100% {padding-top:50px;}
}
@-o-keyframes myMove {
  0% {padding-top:30px;}
  100% {padding-top:50px;}
}
@keyframes myMove {
  0% {padding-top:30px;}
  100% {padding-top:50px;}
}
#down {
  -moz-animation: myMove 1s linear infinite alternate;
  -webkit-animation: myMove 1s linear infinite alternate;
  -o-animation: myMove 1s linear infinite alternate;
  animation: myMove 1s linear infinite alternate;
}

/*导航栏图片*/
.lianxiwomeng{
  width: 94px;
  height: 70px;
}
.code{
  height: 100%;
  width: 100%;
  margin-left: -203px;
}
.wechatjpg{
  height: 260px;
  width: 500px;
}
.hide{
  transition: all 0.8s ease-in;
  transform-origin: 250px -30px;
  transform: scale(0) translate(0%, -20%);
}
.show{
  display: block;
}