@charset "UTF-8";
/* CSS Document */
/*============
nav
=============*/
nav {
  display: block;
  position: fixed;
  top: 0;
  left: -300px;
  bottom: 0;
  width: 300px;
  background: #f4b4cc;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transition: .5s;
  z-index: 3;
}
.open nav {
  left: 0;
}
nav .inner {
  padding: 25px;
}
nav .inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
nav .inner ul li {
  position: relative;
  margin: 0;
  border-bottom: 1px solid #333;
  line-height: 2.0rem;
}
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: #e4e4e4;
}
@media screen and (max-width: 767px) {
  nav {
    left: -240px;
    width: 240px;
  }
}
/*============
@keyframes
=============*/
@keyframes equalizer01 {
  0% {
    width: 70%;
  }
  10% {
    width: 50%;
  }
  20% {
    width: 100%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 50%;
  }
  50% {
    width: 70%;
  }
  60% {
    width: 50%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 100%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 70%;
  }
}
@keyframes equalizer02 {
  0% {
    width: 30%;
  }
  10% {
    width: 20%;
  }
  20% {
    width: 40%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 20%;
  }
  50% {
    width: 30%;
  }
  60% {
    width: 20%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 40%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 30%;
  }
}
/*============
.toggle_btn
=============*/
.toggle_btn {
  display: block;
  position: fixed;
  top: 30px;
  left: 30px;
  width: 60px;
  height: 30px;
  transform: translate(0, 0);
  transition: all .5s;
  cursor: pointer;
  z-index: 3;
  background-color: #fff;
}
.open .toggle_btn {
  left: 330px;
}
.toggle_btn span {
  display: block;
  position: absolute;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: #666;
  transition: all .5s;
}
.toggle_btn span:nth-child(1) {
  top: 5px;
  width: 60px;
  animation: equalizer01 7000ms infinite;
}
.toggle_btn span:nth-child(2) {
  top: 15px;
  width: 30px;
  animation: equalizer02 5000ms infinite;
  animation-delay: 0.33s;
}
.toggle_btn span:nth-child(3) {
  top: 25px;
  width: 20px;
  animation: equalizer02 5000ms infinite;
}
.open .toggle_btn span {
  background-color: #666;
  width: 30px;
}
.open .toggle_btn span:nth-child(1) {
  transform: translate(0, 10px) rotate(-45deg);
  animation: unset;
}
.open .toggle_btn span:nth-child(2) {
  opacity: 0;
  animation: unset;
}
.open .toggle_btn span:nth-child(3) {
  transform: translate(0, -10px) rotate(45deg);
  animation: unset;
}
@media screen and (max-width: 767px) {
  .open .toggle_btn {
    left: 260px;
  }
}
/*============
#mask
=============*/
#mask {
  display: none;
}
.open #mask {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: .8;
  z-index: 2;
  cursor: pointer;
  transition: all .5s;
}