.fc-gray {
  color: #666666;
}

.indent1 {
  padding-left: 1em;
  text-indent: -1em;
}

/*
 * layout
 */
.l-box {
  padding: 3rem;
}
@media (max-width:767px) {
  .l-box {
    padding: 3em 3vw;
  }
}
.l-box--800 {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/*
 * font-size
 */
.fs13 {
  font-size: 1.3rem;
}
.fs14 {
  font-size: 1.4rem;
}
.fs18 {
  font-size: 1.8rem;
}
.fs28 {
  font-size: 2.8rem;
}
.fs36 {
  font-size: 3.6rem;
}
@media (max-width:767px) {
  .fs14,
  .sp-fs14 {
    font-size: 3.6vw;
  }
  .sp-fs15 {
    font-size: 3.8vw !important;
  }
  .sp-sf16 {
    font-size: 4.1vw;
  }
  .fs18,
  .sp-fs18 {
    font-size: 4.5vw;
  }
}

/*
 * margin
*/
.mt1 {
  margin-top: 1rem;
}
.mt2 {
  margin-top: 2rem;
}
.mt3 {
  margin-top: 3rem;
}
@media screen and (max-width:979px) {
  .tb-ml3 {
    margin-left: 3rem;
  }
  .tb-mr3 {
    margin-right: 3rem;
  }
  .tb-mt3 {
    margin-top: 3rem;
  }
}

/*
 * padding
 */
.pb3 {
  padding-bottom: 3rem;
}
.pl1 {
  padding-left: 1em;
}
.pl2 {
  padding-left: 2em;
}
.pl3 {
  padding-left: 3em;
}
.pr1 {
  padding-right: 1em;
}
.pr2 {
  padding-right: 2em;
}
.pr3 {
  padding-right: 3em;
}
.pt3 {
  padding-top: 3rem;
}
.pt4 {
  padding-top: 4rem;
}
@media screen and (max-width:979px) {
  .tb-pr3 {
    padding-right: 3rem;
  }
}
@media (max-width:767px) {
  .sp-pt0 {
    padding-top: 0;
  }
}

/*
 * text-align
 */
.center {
  text-align: center;
}
.left {
  text-align: left;
}
.right {
  text-align: right;
}

/*
 * vertical-align
 */
.img-va-middle img {
  vertical-align: middle;
}

/*
 * flex > align-items
 */
.flex-ai-center {
  align-items: center;
}

@media screen and (max-width:767px) {
  .pc-only {
    display: none;
  }
}