@media (min-width: 768px) { 
  .hamburger {
    display: none;
  }
  #mobile-menu {
    display: none;
  }

  /* 繧ｵ繧､繝峨ヰ繝ｼ繝｡繝九Η繝ｼ縺ｮ繧ｹ繧ｿ繧､繝ｫ */
  .sidebar-menu ul.menu-list,
  .sidebar-menu ul.sub-menu,
  .subnav ul.menu-list,
  .subnav ul.sub-menu {
    list-style-type: none;
    padding-left: 0;
  }

  .sidebar-menu ul.sub-menu,
  .subnav ul.sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding-left: 15px;
  }

  .sidebar-menu ul.sub-menu.show,
  .subnav ul.sub-menu.show {
    max-height: 1400px; /* 繧ｵ繝悶Γ繝九Η繝ｼ縺ｮ譛€螟ｧ鬮倥＆繧定ｪｿ謨ｴ */
  }


  .sidebar-menu li.has-children > a.open::after,
  .subnav li.has-children > a.open::after {
    transform: rotate(180deg);
  }

  .sidebar-menu li.current-menu-ancestor > a,
  .sidebar-menu li.current-menu-item > a,
  .subnav li.current-menu-ancestor > a,
  .subnav li.current-menu-item > a {
    font-weight: bold;
  }
}

@media (max-width: 768px) {
  #topbar {
    display: none;
  }
  
  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 35px;
    height: 35px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    box-sizing: border-box;
  }

  .hamburger span {
    width: 35px;
    height: 4px;
    background-color: #6e6e6e;
    border-radius: 2px;
    transition: all 0.3s linear;
  }

  #mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 65%;
    height: 100vh;
    background-color: #373E46;
    transition: right 0.3s ease-in-out;
    z-index: 1000;
    overflow-y: auto;
    padding: 20px;
  }

  #mobile-menu #close-button {
    font-size: 22px;
    color: white;
    font-weight: bold;
    width: fit-content;
  }

  #mobile-menu.show {
    right: 0;
  }

  #mobilenav {
    display: flex;
    flex-direction: column;
  }

  #mobilenav ul.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
  }

  #mobilenav ul.menu-list > li {
    margin-bottom: 0;
    position: relative;
    transition: margin-bottom 0.3s ease-out;
  }

  #mobilenav ul.menu-list > li > a,
  #mobilenav ul.sub-menu > li > a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    display: block;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }

  .sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding-left: 15px;
  }

  #mobilenav li.expanded > .sub-menu {
    max-height: 1400px;
  }

  #mobilenav li.has-children > a::after {
    content: '\25BC';
    margin-left: 5px;
    font-size: 12px;
    transition: transform 0.3s ease-out;
  }

  #mobilenav li.has-children.expanded > a::after {
    transform: rotate(180deg);
  }

  #mobile-search {
    margin-top: 5px;
  }

  #mobile-search input[type="text"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
  }

  #mobile-search input[type="submit"] {
    width: 55px;
    padding: 10px;
    background-color: #4a4a4a;
    color: #fff;
    border: none;
    cursor: pointer;
  }
  
  #mobilenav ul.sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding-left: 15px;
  }

  #mobilenav ul.sub-menu.show {
    max-height: 1400px; /* 繧ｵ繝悶Γ繝九Η繝ｼ縺ｮ譛€螟ｧ鬮倥＆繧定ｪｿ謨ｴ */
  }

  #mobilenav ul.sub-menu > li > a {
    padding-left: 30px;
    font-size: 16px;
  }

  #mobilenav li.has-children > a::after {
    content: '\25BC';
    float: right;
    transition: transform 0.3s ease;
    margin-left: 10px;
  }

  #mobilenav li.has-children > a.open::after {
    transform: rotate(180deg);
  }

  #mobilenav ul.sub-menu li.has-children > a::after {
    content: '\25BC';
    float: right;
    transition: transform 0.3s ease;
    margin-left: 10px;
  }

  #mobilenav ul.sub-menu li.has-children > a.open::after {
    transform: rotate(180deg);
  }

  #mobilenav ul.sub-menu ul.sub-menu > li > a {
    padding-left: 45px;
  }
  
  #mobilenav ul.menu-list,
  #mobilenav ul.sub-menu {
    list-style-type: none;
    padding-left: 0;
  }

  #mobilenav li.current-menu-ancestor > a,
  #mobilenav li.current-menu-item > a {
    font-weight: bold;
  }
}