html {
  font-size: calc(100vw / 2048);
}
img {
  display: block;
}
.navbar {
  height: 144rem;
  background-color: #fff;
  padding: 0 45rem;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 999;
}
.navbar > .container{
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.navbar button.navbar-toggler{
  display: none;
}
.navbar .logo {
  display: block;
  margin-right: 20rem;
}
.navbar .logo img {
  height: 100rem;
}
.navbar #navbarSupportedContent,
.navbar #navbarSupportedContent > ul,
.navbar #navbarSupportedContent .navbar-nav {
  display: flex;
  flex-wrap: wrap;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item {
  padding: 30rem 45rem;
  text-align: center;
  position: relative;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item > a {
  font-size: 28rem;
  color: #8b8ba5;
  font-weight: bold;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item > a:hover,
.navbar #navbarSupportedContent .navbar-nav .nav-item > a.on {
  color: #000;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item ul,
.navbar #navbarSupportedContent .navbar-nav .nav-item .dropdown-menu {
  position: absolute;
  box-shadow: 0 0 20rem rgba(0, 0, 0, 0.2);
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 100%;
  background-color: #fff;
  padding: 20rem;
  box-sizing: border-box;
  display: none;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item .dropdown-menu li {
  text-align: center;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item .dropdown-menu li a {
  display: block;
  font-size: 24rem;
  padding: 20rem;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item .dropdown-menu li:hover {
  background-color: #8b8ba5;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item .dropdown-menu li:hover a {
  color: #fff;
}
.navbar #navbarSupportedContent .navbar-nav .nav-item:hover .dropdown-menu {
  display: block;
}
.main-container img {
  width: 100%;
}
.footer-container {
  background-color: #f9f9f9;
}
.footer-container img {
  width: 100%;
}
.footer-container .copyright {
  padding: 10px 0;
  font-size: 19rem;
  color: #000;
  text-align: center;
}
.to-up {
  position: fixed;
  width: 60rem;
  height: 60rem;
  background-color: #619eb3;
  right: 30rem;
  bottom: 5%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}