#header_area{
    background-image: url(../img/about_img1800.jpg);
    background-size: cover;
    background-position: center center;
    height: 100vh;
}

/********** #header_area **/
.header_title{
  margin-top: 160px;
}
.header_title::before{
  left: 50%;
  transform: translateX(-50%);
  /* margin-left: 94px; */
}

/***** scroll-guide
******************************/
.scroll {
  position: relative;
  width: 24px;
  height: 24px;
  left: 0;
  margin: 0 auto;
  /* transform: translateX(-50%); */
}
  
  .chevron {
    position: absolute;
    width: 28px;
    height: 8px;
    opacity: 0;
    transform: scale3d(0.5, 0.5, 0.5);
    animation: move 3s ease-out infinite;
  }
  
  .chevron:first-child {
    animation: move 3s ease-out 1s infinite;
  }
  
  .chevron:nth-child(2) {
    animation: move 3s ease-out 2s infinite;
  }
  
  .chevron:before,
  .chevron:after {
    content: ' ';
    position: absolute;
    top: 0;
    height: 100%;
    width: 51%;
    background: #fff;
  }
  
  .chevron:before {
    left: 0;
    transform: skew(0deg, 30deg);
  }
  
  .chevron:after {
    right: 0;
    width: 50%;
    transform: skew(0deg, -30deg);
  }
  
  @keyframes move {
    25% {
      opacity: 1;
  
    }
    33% {
      opacity: 1;
      transform: translateY(30px);
    }
    67% {
      opacity: 1;
      transform: translateY(40px);
    }
    100% {
      opacity: 0;
      transform: translateY(55px) scale3d(0.5, 0.5, 0.5);
    }
  }
  
  .scroll_txt {
    display: block;
    margin-top: 65px;
    margin-left: -30px;
    font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
    font-size: 12px;
    color: #fff;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: .25;
    animation: pulse 2s linear alternate infinite;
  }
  
  @keyframes pulse {
    to {
      opacity: 1;
    }
  }

/***** flow *****/
.flow_main-title{
  color: var(--mywhite);
  font-size: var(--titlesize);
  letter-spacing: 2px;
  line-height: 2;
  margin-bottom: 1rem;
  padding-left: 1rem;
  background: var(--mybrown);
}
.flow_title_note{
  color: var(--mywhite);
  letter-spacing: 2px;
  line-height: 2;
  margin-bottom: 1rem;
  padding-left: 1rem;
}
.flow_sub-title{
  color: var(--mywhite);
  font-size: var(--titlesize);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}
.flow_design{
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: 20px;
}

.flow_inner ul{
  padding: 0;
}

.flow_inner li{
  list-style-type: none;
}
.flow_inner dd{
  letter-spacing: 2px;
  line-height: 1.4;
}
.flow_item{
  color: var(--mywhite);
}
.flow_note{
  color: var(--mybrown);
}

.flow_inner {
  position: relative;
}

.flow_inner::before {
  content: "";
  width: 15px;
  height: 100%;
  background: #eee;
  margin-left: -129px;
  display: block;
  position: absolute;
  top: 0;
  left: 120px;
  border-radius: 20px;
}

.flow_inner > li {
  position: relative;
}

.flow_inner > li:not(:last-child) {
  margin-bottom: 60px;
}

.flow_inner > li .flow_icon {
  font-size: 0.8em;
  width: 2em;
  height: 2em;
  line-height: 2;
  text-align: center;
  font-weight: bold;
  border-radius: 100vh;
  color: #fff;
  background: var(--mybrown);
  display: inline-block;
  margin-right: 0.3em;
}

.flow_inner > li dl {
  padding-left: 70px;
  position: relative;
}

.flow_inner > li dl::before,
.flow_inner > li dl::after {
  content: "";
  display: block;
  position: absolute;
  top: 15px;
}

.flow_inner > li dl::before {
  width: 7px;
  height: 7px;
  margin-top: -3px;
  background: var(--mybrown);
  border-radius: 50%;
  left: -5px;
}

.flow_inner > li dl::after {
  width: 50px;
  border-bottom: 1px dashed #999;
  position: absolute;
  left: 5px;
}

.flow_inner > li dl dt {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--mybrown);
  margin-bottom: 0.5em;
  display: flex;
  align-items: center;
}

/************************ pc **/
/******************************/
@media (min-width:800px){
  #header_area{
    background-image: url(../img/about_img1800.jpg);
    background-size: cover;
    background-position: center center;
    height: 100vh;
}
/********** #header_area **/
.header_title::before{
  top: -30px;
  left: 0;
  margin-left: 24px;
  transform: translateX(0%);
}

/***** scroll-guide
******************************/
.scroll {
    position: relative;
    width: 24px;
    height: 24px;
    left: -594px;
    /* transform: translateX(-50%); */
  }

  
  .chevron {
    position: absolute;
    width: 28px;
    height: 8px;
    opacity: 0;
    transform: scale3d(0.5, 0.5, 0.5);
    animation: move 3s ease-out infinite;
  }
  
  .chevron:first-child {
    animation: move 3s ease-out 1s infinite;
  }
  
  .chevron:nth-child(2) {
    animation: move 3s ease-out 2s infinite;
  }
  
  .chevron:before,
  .chevron:after {
    content: ' ';
    position: absolute;
    top: 0;
    height: 100%;
    width: 51%;
    background: #fff;
  }
  
  .chevron:before {
    left: 0;
    transform: skew(0deg, 30deg);
  }
  
  .chevron:after {
    right: 0;
    width: 50%;
    transform: skew(0deg, -30deg);
  }
  
  @keyframes move {
    25% {
      opacity: 1;
  
    }
    33% {
      opacity: 1;
      transform: translateY(30px);
    }
    67% {
      opacity: 1;
      transform: translateY(40px);
    }
    100% {
      opacity: 0;
      transform: translateY(55px) scale3d(0.5, 0.5, 0.5);
    }
  }
  
  .scroll_txt {
    display: block;
    margin-top: 65px;
    margin-left: -30px;
    font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
    font-size: 12px;
    color: #fff;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: .25;
    animation: pulse 2s linear alternate infinite;
  }
  
  @keyframes pulse {
    to {
      opacity: 1;
    }
  }
}