/*============
nav
=============*/
.sp_header_container{
  display: none;

  @media screen and (max-width: 768px) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    padding: 10px 0;
    /* background: #ffffff; */
    /* box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); */
    z-index: 120;

    .logo_area{
      padding-top: 0.2rem;
      display: flex;
      align-items: center;
      z-index: 0;
    }

    img{
      width: 40svw;
      height: auto;
      margin-left: 20px;
    }
  }
}

nav {
  display: none;
  position: fixed;
  top: 0;
  left: -300px;
  bottom: 0;
  width: 300px;
  /* background: #1a92f4; */
  /* background-image: linear-gradient(174deg, #30cfd0, #330867); */
  background-image: url("/src/eyes_v3pages/image/bg_v3ad_background_blueGraph_pc.jpg");
  background-position: center top;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transition: all .5s;
  z-index: 110;
  opacity: 0;
}
.open nav {
  left: 0;
  opacity: 1;
}
nav .inner {
  padding: 5rem 1rem 1rem 1rem;
}
nav .inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
nav .inner ul li {
  position: relative;
  margin: 0;
  border-bottom: 1px solid #ffffff;
}
nav .inner ul li a {
  display: block;
  color: #ffffff;
  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: 768px) {
  nav {
    display: block;
    left: -70svw;
    width: 70svw;
  }
}

/*============
.toggle_btn
=============*/
.toggle_btn {
  display: none;
  /* position: fixed; */
  position: absolute;
  /* top: 30px; */
  right: 30px;
  width: 30px;
  height: 30px;
  transition: all .5s;
  cursor: pointer;
  z-index: 120;

   @media screen and (max-width: 768px) {
    display: block;
   }
}

.toggle_btn span {
  display: block;
  position: absolute;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: #333;
  border-radius: 4px;
  transition: all .5s;
}
.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: #fff;
}
.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: 100;
  cursor: pointer;
}
/*============
main
=============*/
main {
  padding: 50px;
}
main h1 {
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;
  text-align: center;
}
/*============
body
=============*/
body {
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;
}