.main-menu-btn {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 70px;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}
/* hamburger icon */
.main-menu-btn-icon, .main-menu-btn-icon:before, .main-menu-btn-icon:after {
  position: absolute;
  top: 34px;
  right: 15px;
  height: 2px;
  width: 30px;
  background: #2d2d2d;
  -webkit-transition: all 0.25s;
  transition: all 0.25s;
}
.main-menu-btn-icon:before {
  content: '';
  top: -.7em;
  right: 0;
  width: 30px;
}
.main-menu-btn-icon:after {
  content: '';
  top: .7em;
  right: 0;
  width: 30px;
}
/* x icon */
#main-menu-state:checked ~ .main-menu-btn .main-menu-btn-icon {
  height: 0;
  background: transparent;
}
#main-menu-state:checked ~ .main-menu-btn .main-menu-btn-icon:before {
  top: 0;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  width: 32px;
}
#main-menu-state:checked ~ .main-menu-btn .main-menu-btn-icon:after {
  top: 0;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  width: 32px;
}
/* hide menu state checkbox (keep it visible to screen readers) */
#main-menu-state {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  overflow: hidden;
  clip: rect(1px,1px,1px,1px);
}  
/* hide the menu in mobile view */
#main-menu-state:not(:checked) ~ #main-menu {
  display: none;
}
#main-menu-state:checked ~ #main-menu {
  display: block;
  margin-top: -5px;
  padding-top: 1.2em;
  border-top: 1px solid #d6d6d6
}
/*追加*/
.main-menu-btn-open {
  display: inline-block;
  position: absolute;
  top: 40px;
  right: -webkit-calc(50% - 27.5px);
  right: calc(50% - 27.5px);
  width: 55px;
  vertical-align: top;
  text-decoration: none;
  overflow: hidden;
  text-align: center;
}
.main-menu-btn-close {
  display: none;
}
/* x icon */
#main-menu-state:checked ~ .main-menu-btn .main-menu-btn-open {
  display: none;
}
#main-menu-state:checked ~ .main-menu-btn .main-menu-btn-close {
  display: inline-block;
  position: absolute;
  top: 40px;
  right: -webkit-calc(50% - 27.5px);
  right: calc(50% - 27.5px);
  width: 55px;
  vertical-align: top;
  text-decoration: none;
  overflow: hidden;
  text-align: center;
}

@media (min-width: 769px) {
  /* hide the button in desktop view */
  .main-menu-btn {
      display: none;
  }
  /* always show the menu in desktop view */
  #main-menu-state:not(:checked) ~ #main-menu {
    display: block;
  }
}


@media (max-width: 768px) {
.sm{position:relative;z-index:990;}
.sm,.sm ul,.sm li{display:block;list-style:none;margin:0;padding:0;line-height:normal;direction:ltr;text-align:left;-webkit-tap-highlight-color:rgba(0,0,0,0);}

.sm-rtl,.sm-rtl ul,.sm-rtl li{text-align:left;}
.sm>li>h1,.sm>li>h2,.sm>li>h3,.sm>li>h4,.sm>li>h5,.sm>li>h6{margin:0;padding:0;}
.sm ul{display:none;}
.sm li,.sm a{position:relative;}
.sm a,.sm label{display:block;}
.sm a.disabled,.sm label.disabled{cursor:not-allowed;}
.sm:after{content:"";display:block;height:0;font:0px/0 serif;clear:both;visibility:hidden;overflow:hidden;}
.sm,.sm *,.sm *:before,.sm *:after{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;}

.sm li {
    color: #2d2d2d;
    font-size: 18px;
    text-align: center
}
.sm-clean {
	width: 100%;
}
.sm-clean a, .sm-clean a:hover, .sm-clean a:focus, .sm-clean a:active,
.sm-clean label, .sm-clean label:hover, .sm-clean label:focus, .sm-clean label:active{
  padding: .8em;
  /* make room for the toggle button (sub indicator) */
  color: #2d2d2d;
  text-decoration: none;
}
.sm-clean a.current {
  color: #d23600;
}
.sm-clean a.disabled {
  color: #bbbbbb;
}
.sm-clean a span.sub-arrow {
  position: absolute;
  top: 50%;
  margin-top: -17px;
  left: auto;
  right: 4px;
  width: 34px;
  height: 34px;
  overflow: hidden;
  font: bold 16px/34px monospace !important;
  text-align: center;
  text-shadow: none;
  background: rgba(255, 255, 255, 0.5);
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  border-radius: 5px;
  text-indent: 0;
}
.sm-clean a.highlighted span.sub-arrow:before {
  display: block;
  content: '-';
}
.sm-clean > li:first-child > a, .sm-clean > li:first-child > :not(ul) a {
  -webkit-border-radius: 5px 5px 0 0;
  -moz-border-radius: 5px 5px 0 0;
  -ms-border-radius: 5px 5px 0 0;
  -o-border-radius: 5px 5px 0 0;
  border-radius: 5px 5px 0 0;
}
.sm-clean > li:last-child > a, .sm-clean > li:last-child > *:not(ul) a, .sm-clean > li:last-child > ul,
.sm-clean > li:last-child > ul > li:last-child > a, .sm-clean > li:last-child > ul > li:last-child > *:not(ul) a, .sm-clean > li:last-child > ul > li:last-child > ul,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul {
  -webkit-border-radius: 0 0 5px 5px;
  -moz-border-radius: 0 0 5px 5px;
  -ms-border-radius: 0 0 5px 5px;
  -o-border-radius: 0 0 5px 5px;
  border-radius: 0 0 5px 5px;
}
.sm-clean > li:last-child > a.highlighted, .sm-clean > li:last-child > *:not(ul) a.highlighted,
.sm-clean > li:last-child > ul > li:last-child > a.highlighted, .sm-clean > li:last-child > ul > li:last-child > *:not(ul) a.highlighted,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > a.highlighted, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a.highlighted,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > a.highlighted, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a.highlighted,
.sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > a.highlighted, .sm-clean > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > ul > li:last-child > *:not(ul) a.highlighted {
  -webkit-border-radius: 0;
  -moz-border-radius: 0;
  -ms-border-radius: 0;
  -o-border-radius: 0;
  border-radius: 0;
}
.sm-clean li > ul > li:last-child {
  border-bottom: 0;
}
.sm-clean ul {
  background: rgba(162, 162, 162, 0.1);
}
.sm-clean ul a, .sm-clean ul a:hover, .sm-clean ul a:focus, .sm-clean ul a:active {
  font-size: 12px;
  border-left: 8px solid transparent;
}
.sm-clean ul ul a,
.sm-clean ul ul a:hover,
.sm-clean ul ul a:focus,
.sm-clean ul ul a:active {
  border-left: 16px solid transparent;
}
.sm-clean ul ul ul a,
.sm-clean ul ul ul a:hover,
.sm-clean ul ul ul a:focus,
.sm-clean ul ul ul a:active {
  border-left: 24px solid transparent;
}
.sm-clean ul ul ul ul a,
.sm-clean ul ul ul ul a:hover,
.sm-clean ul ul ul ul a:focus,
.sm-clean ul ul ul ul a:active {
  border-left: 32px solid transparent;
}
.sm-clean ul ul ul ul ul a,
.sm-clean ul ul ul ul ul a:hover,
.sm-clean ul ul ul ul ul a:focus,
.sm-clean ul ul ul ul ul a:active {
  border-left: 40px solid transparent;
}



}