html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

img {
  width: 100%;
}

header {
  background: url(../images/bg1.png) no-repeat center top/contain;
  width: 100%;
  height: auto;
  position: relative;
}

.sec00 {
  position: relative;
  top: -7vw;
}

header {
  width: 100%;
  height: auto;
}

.sp03 {
  width: 90%;
  margin: 0 auto;
}

.btn {
  margin: 0 auto;
  height: auto;
  position: relative;
}
.btn img {
  width: 95%;
  height: auto;
  position: relative;
}

.sec01 {
  width: 100%;
  height: auto;
  position: relative;
  top: -2vw;
}

a {
  text-align: center;
}

.btn {
  width: 100%;
}

.arrow {
  text-align: center;
  margin-bottom: 1%;
}
.arrow img {
  height: auto;
}

.area_btn_1 {
  text-align: center;
}

.area_btn_2 {
  text-align: right;
}

.tomoko {
  width: 50% !important;
  margin-right: 3%;
}