/*============
nav
=============*/
nav {
  display: block;
  position: fixed;
  top: 0;
  right: -300px;
  bottom: 0;
  width: 300px;
  background: #FFFFFF;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transition: all .5s;
  z-index: 999999;
  opacity: 0;
}
.open nav {
  right: 0;
  opacity: 1;
}
nav .inner {
  padding: 25px;
  padding-top: 70px;
}
nav .inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
nav .inner ul li {
  position: relative;
  margin: 0;
  border-bottom: 1px solid #333;
}
nav .inner ul li a {
  display: block;
  color: #333;
  font-size: 14px;
  padding: 1em;
  text-decoration: none;
  transition-duration: 0.2s;
}
nav .inner ul li a:hover {
  background: #d5cfc8;
}
@media screen and (max-width: 767px) {
  nav {
    right: -220px;
    width: 220px;
  }
  .linkartists{
    padding-left:0px;
  }
  .linkname,
  .linkseparate {
    display: none !important;
  }
}
/*============
.toggle_btn
=============*/
.toggle_btn {
  display: block;
  position: fixed; /* center vertically inside .hero */
  top: 35px;
  right: 18px;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  padding-left: 10px;
  padding-right: 10px;
  transition: all .5s;
  cursor: pointer;
  z-index: 999999999999999999999;
}
.toggle_btn span {
  display: block;
  position: fixed;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: #000000; /* changed: default (top of page) should be white */
  border-radius: 4px;
  transition: all .5s;
}

/* is-darkクラスが付いたら黒にする */
.toggle_btn.is-dark span {
  background-color: #000000;
}

.toggle_btn span:nth-child(1) {
  top: 4px;
}
.toggle_btn span:nth-child(2) {
  top: 14px;
}
.toggle_btn span:nth-child(3) {
  bottom: 4px;
}
.open .toggle_btn span {
  background-color: #000000;
}
.open .toggle_btn span:nth-child(1) {
  -webkit-transform: translateY(10px) rotate(-315deg);
  transform: translateY(10px) rotate(-315deg);
}
.open .toggle_btn span:nth-child(2) {
  opacity: 0;
}
.open .toggle_btn span:nth-child(3) {
  -webkit-transform: translateY(-10px) rotate(315deg);
  transform: translateY(-10px) rotate(315deg);
}
/*============
#mask
=============*/
#mask {
  display: none;
  transition: all .5s;
}
.open #mask {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: .8;
  z-index: 7000;
  cursor: pointer;
}