html {
  font-family: "IBM Plex Sans JP", sans-serif;
  font-size: 10px;
}

body {
  font-size: 1.6rem;
  line-height: 1.8;
  color: #2D2D31;
}

.bold {
  font-weight: 600;
}

.inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
@media screen and (max-width: 768px) {
  .inner {
    padding: 0 3%;
  }
}

img {
  max-width: 100%;
}

.inner {
  width: 100%;
  max-width: 850px;
  margin: 0 auto;
}

header {
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding: 20px 60px;
}
@media screen and (max-width: 768px) {
  header {
    padding: 15px 3%;
  }
}

footer {
  text-align: center;
  background: #FF9045;
  color: #fff;
  font-weight: bold;
  padding: 30px 3%;
}

.sp {
  display: none;
}

@media screen and (max-width: 768px) {
  .pc {
    display: none;
  }
  .sp {
    display: block;
  }
}
.scrollTop {
  display: block;
  position: fixed;
  width: 75px;
  height: 75px;
  bottom: 50px;
  right: 50px;
  background: url(../img/to_top.svg) no-repeat;
  background-size: cover;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: 300ms ease-in-out;
  transition: 300ms ease-in-out;
  -webkit-transform: scale(-0.5);
          transform: scale(-0.5);
}
.scrollTop.show {
  opacity: 1;
  -webkit-transform: scale(1);
          transform: scale(1);
  pointer-events: all;
}
@media screen and (max-width: 768px) {
  .scrollTop {
    width: 50px;
    height: 50px;
    bottom: 4%;
    right: 4%;
  }
}