.pc {
  display: block !important;
}
.sp {
  display: none !important;
}

/*notes*/
header {
  border-bottom: 1px solid #f0f0f0;
  padding: 1em 0;
  text-align: center;
}

/*notes*/
section {
  margin: auto;
  max-width: 475px;
  padding: 33px 0 0;
}
h2 {
  font-size: 2.3rem;
  margin: 1em 0 .5em;
}
.b1__wrap {
  align-items: center;
  display: flex;
  margin-bottom: 2em;
}
.b1__wrap p {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-left: .5em;
}
.b1__wrap p span {
  font-size: 1.0rem;
  font-weight: 400;
}
.b1__wrap img:last-child {
  margin-left: auto;
  width: 65%;
}
.t1 span {
  color: #ef0000;
  font-weight: 700;
}
.book {
  display: block;
  margin: 1em auto;
}
.b2__wrap {
  position: relative;
  background: #fafafa;
  border: 1px solid #ededed;
  border-radius: 2px;
  font-weight: 700;
  margin-top: 1.5em;
  padding: 1em 3.5em;
}
.b2__wrap img {
  position: absolute;
  top: 1.4em;
  left: 1.5em;
}
.t2 {
  padding: 1.5em 0 0;
}
.t2 span {
  background: linear-gradient(transparent 70%, #fff600 0%);
  font-weight: 700;
}
ul {
  background: #fafafa;
  border: 1px solid #ededed;
  border-radius: 2px;
  margin: 1.5em 0;
  padding: 1em;
}
ul li {
  position: relative;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: .7em;
  padding: 0 0 0 3em;
}
ul li::before {
  position: absolute;
  content: "";
  background: 100% / 100% url(../img/check-mark.png) no-repeat;
  width: 15px;
  height: 15px;
  top: .2em;
  left: 1em;
}
ul li:last-child {
  margin-bottom: 0;
}
.button {
  display: block;
  margin: 3em auto 4em;
}
h3 {
  font-size: 2.0rem;
  margin: 0 0 .5em;
  text-align: center;
}
.syukunami {
  display: block;
  margin: 1.5em auto;
}

/*notes*/
footer {
  font-size: 1.0rem;
  text-align: center;
}
footer a {
  background: #f7f3e7;
  display: block;
  padding: 1em 0;
}
footer p {
  background: #000;
  color: #fff;
  font-weight: 700;
  padding: 1em 0;
}

@media screen and (max-width:720px){
.pc {
  display: none !important;
}
.sp {
  display: block !important;
}
.contents {
  padding: 0 5%;
}
}

.iframe-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

h4 {
    line-height: 2;
    font-size: 17px;
    font-weight: 700;
    color: #141414;
    background-color: #f9f9f9;
    padding: 15px 31px;
    border-left: 4px solid #141414;
    margin: 25px 0;
}

ul#2 { padding: 0.5em 0.5em 0.5em 2em;/*ボックス内の余白*/}

li#2 { line-height: 1.5; /*文の行高*/
  padding: 0.5em 0; /*前後の文との余白*/}