@media (min-width: 768px) {

  .font-size-1 {
    font-size: 1.25em;
  }
  .font-size-2 {
    font-size: 1.5em;
  }
  .font-size-3 {
    font-size: 2em;
  }
  .font-size-4 {
    font-size: 3em;
  }

  /*
  * header
  */
  header.header-shadow {  
    box-shadow: 0 5px 10px rgba(0,0,0,.1);
  }  
  header .navbar { 
    padding: 0;
    height: 97px; 
  }
  header .navbar-brand img {
    height: 42px;
  }
  header .navbar-collapse {
    margin: 0;    
    max-height: unset;
    overflow: visible;
    align-self: flex-end;
  }

  header .navbar .nav-item {
    position: relative;
    border-top: 0
  }
  header .navbar .nav-link {
    position: relative;
    font-size: 1rem;
    white-space: nowrap;
  }
  .navbar-expand-md .navbar-nav .nav-item {    
    padding: 0 1rem;
  }

  header .navbar .nav-item ul {
    position: absolute;
    z-index: 1;
    box-shadow: 0 0 10px rgb(0,0,0,.2);
  }
  header .navbar .nav-item:hover>ul {
    display: block;
  }
  header .navbar .nav-item ul li.has-children>.nav-link {
    padding-right: calc(1.125rem + .5em);
  }
  header .navbar .nav-item ul li.has-children>.nav-link::after {
    content: '\f285';
    display: inline-block;
    position: absolute;
    right: .25rem;
    font-size: .5em;
    line-height: 1.5rem;
    font-family: bootstrap-icons !important;
    font-style: normal;
    font-weight: normal !important;
    font-variant: normal;
    text-transform: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  header .navbar .nav-item ul li + li {
    border-top: 1px solid #eee;
  }
  header .navbar-nav>.nav-item>ul {  
    left: 0;    
    min-width: 100%;
  }
  header .navbar-nav>.nav-item>ul ul {
    top: 0;
    left: 100%;
  }

  header .navbar .nav-lang {
    position: absolute;
    top: 6px;
    right: 0;
    margin-bottom: 0;
    padding: 0;
    transition: top .5s;
    background-color: transparent;
  }
  header .navbar .nav-lang li {
    float: left;
  }
  header .navbar .nav-lang li a {
    padding: 0 .5rem;
    font-size: .875rem;
    text-decoration: none;
  }


  /*
  * main
  */
  main {
    padding-top: 97px;
  }
  #slideHome .carousel-caption {
    left: 0;
    right: 0;
    top: 25%;
  }
  
  #slideHome .carousel-caption h2 {
    font-size: 2.5rem;
  }

  main .home-video-banner {
    height: 75vh;
  }
  main .home-video-banner .caption {
    font-size: 4rem;
  }
  
  main .home-about h2 {
    font-size: 32px;
  }
  main .home-about p {
    font-size: 15px;
  }
  
  main .home-achievement h2 {
    font-size: 32px;
  }
  main .home-achievement p {
    font-size: 15px;
  }

  main .home-service h2 {
    font-size: 32px;
  }
  main .home-service p {
    font-size: 15px;
  }

  main .btn-home {
    font-size: 18px;
    line-height: 26px;
  }

  .modal-common .modal-body {
    padding: 42px 70px;
  }

  .home-stock-index ul>li {
    font-size: .875rem;
  }

  /*
  * footer
  */
  footer .site-map {
    column-count: unset;
    column-gap: unset;
    display: -ms-flexbox;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
  }  
  footer .site-map>li {
    break-inside: unset;
    margin-right: 2rem;
  }
}

@media (min-width: 992px) {
  header .navbar .nav-link {
    font-size: inherit;
  }
  .navbar-expand-md .navbar-nav .nav-item {    
    padding-left: 1.75rem;
    padding-right: 1.75rem;
  }  
  header .navbar .nav-item ul li.has-children>.nav-link {
    padding-right: calc(1.75rem + .5em);
  }

  footer .title-link {
    font-size: 20px;
  }

  footer .contact-list li {
    font-size: 16px;
  }
  footer .contact-list li i {
    width: 16px;
    height: 16px;
  }
}

@media (min-width: 1010px) {
  .container {
    max-width: 1010px;
  }

  main .home-about h2 {
    font-size: 44px;
  }  
  
  main .home-achievement h2 {
    font-size: 44px;
  }   
  main .home-achievement p {
    font-size: 20px;
  }

  main .home-service h2 {
    font-size: 44px;
  }    
  main .home-service p {
    font-size: 20px;
  }

}