article h1 {
  background: rgba(0, 0, 0, 0) linear-gradient(transparent 60%, #ffffbc 0%) repeat scroll 0 0;
  font-size: 33px;
  padding-bottom: 10px;
  margin: 45px 20px 15px;
  text-align: center;
  letter-spacing: 3px;
  line-height: 1.6;
}
article h2 {
  line-height: 1.6;
  font-size: 25px;
  text-align: center;
  margin: 15px 0 30px;
  border: none;
}
article h3 {
  line-height: 1.6;
  margin: 30px 0 20px;
}
article h4 {
  line-height: 1.6;
  margin: 40px 0 10px 50px;
  padding-left: 10px;
  border-left: solid 10px #6DC00B;
}
article h5 {
  line-height: 1.6;
  margin: 0 30px 10px;
}
article h6 {
  line-height: 1.6;
  text-align: center;
  margin: 20px 0;
}
article p {
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 15px;
}
article .center {
  text-align: center;
  color: #6DC00B;
}
article .wk_r {
  margin: 20px 145px;
  padding: 10px 30px;
  border: solid 2px #6DC00B;
  border-radius: 10px;
  height: 190px;
}
article .wk_r h3 {
  line-height: 1.6;
  display: inline-block;
  margin: 15px 0 10px 10px;
}
article .wk_r p {
  margin-right: 20px;
}
article .wk_r .jigyouimg_r {
  float: right;
  margin: 5px 0 5px 15px;
}
article .wk_l {
  margin: 20px 145px;
  padding: 10px 30px;
  border: solid 2px #6DC00B;
  border-radius: 10px;
  height: 190px;
}
article .wk_l h3 {
  line-height: 1.6;
  display: inline-block;
  margin: 15px 10px 10px 0;
}
article .wk_l p {
  margin-left: 20px;
}
article .wk_l .jigyouimg_l {
  float: left;
  margin: 5px 15px 5px 0;
}

.wk_r ~ h4 {
  margin-top: 70px;
}

.qa {
  margin: 0 0 70px 80px;
}
.qa .q {
  color: #505050;
  line-height: 1.6;
  margin-bottom: 0;
  padding: 0;
}
.qa .a {
  color: #f00;
  line-height: 1.6;
  margin: 0 0 10px 60px;
  padding: 0;
}

.otetudai {
  padding: 0 20px 20px;
  border: solid 1px #6DC00B;
}
.otetudai hr {
  width: 92%;
  margin: 0 auto 10px;
}
.otetudai .book {
  margin-bottom: 10px;
}
.otetudai .book::after {
  content: "";
  display: block;
  clear: both;
}
.otetudai .book ~ .book {
  margin-top: 20px;
}
.otetudai h4 {
  border: none;
  background-color: #6DC00B;
  color: #fff;
  text-align: center;
  margin: 15px 0 30px;
  padding: 10px;
}
.otetudai p {
  margin: 5px 10px 5px 30px;
}
.otetudai .oteimg {
  float: right;
  margin: 0 30px 5px 20px;
}
.otetudai .hoka {
  background: #F5F2F2;
  margin: 20px 10px 0;
  padding: 10px;
}
.otetudai .hoka p {
  margin: 5px 10px 5px;
}

@media only screen and (min-width: 1080px) {
  .sp {
    display: none;
  }
}
@media only screen and (max-width: 1079px) {
  .pc {
    display: none;
  }

  .sp {
    text-align: left;
  }
}
@media only screen and (max-width: 720px) {
  article h1 {
    margin: 20px 0;
    font-size: 25px;
  }
}
@media only screen and (max-width: 599px) {
  article {
    margin: 0 10px;
  }
  article h1 {
    margin: 20px 0;
    font-size: 17px;
  }
  article h2 {
    padding-bottom: 10px;
    font-size: 20px;
    margin: 30px 0 20px;
    border-bottom: solid 1px #6DC00B;
  }
  article h3 {
    padding-bottom: 10px;
    margin: 30px 0 20px;
  }
  article h4 {
    margin: 40px 0 10px 5px;
  }
  article p {
    font-size: 16px;
    line-height: 1.6;
    margin: 0 0 15px;
  }
  article .wk_r {
    margin: 20px 5px;
    padding: 10px 10px;
    border: solid 2px #6DC00B;
    border-radius: 10px;
    height: auto;
  }
  article .wk_r h3 {
    line-height: 1.6;
    display: inline-block;
    margin: 5px 0 0 10px;
  }
  article .wk_r p {
    margin: 0 5px 0;
  }
  article .wk_r .jigyouimg_r {
    float: right;
    margin: 5px 0 3px 10px;
  }
  article .wk_l {
    margin: 20px 5px;
    padding: 10px 10px;
    border: solid 2px #6DC00B;
    border-radius: 10px;
    height: auto;
  }
  article .wk_l h3 {
    line-height: 1.6;
    display: inline-block;
    margin: 5px 10px 0 0;
  }
  article .wk_l p {
    margin: 0 5px 0;
  }
  article .wk_l .jigyouimg_l {
    float: left;
    margin: 5px 10px 3px 0;
  }
  article .wk_r ~ h4 {
    margin-top: 40px;
  }
  article .qa {
    margin: 20px 5px 50px;
  }
  article .qa .q {
    color: #505050;
    line-height: 1.6;
    margin-bottom: 5px;
    padding: 0;
    text-indent: 0;
  }
  article .qa .a {
    color: #f00;
    line-height: 1.6;
    margin: 0 0 25px 0;
    padding: 0;
    text-indent: 0;
  }
  article h6 {
    text-align: left;
  }

  .otetudai {
    padding: 0 5px 10px;
    border: solid 1px #6DC00B;
  }
  .otetudai hr {
    width: 96%;
    margin: 0 auto 10px;
  }
  .otetudai h4 {
    border: none;
    background-color: #6DC00B;
    color: #fff;
    text-align: center;
    margin: 15px 0;
    padding: 10px;
  }
  .otetudai .book {
    margin-bottom: 10px;
  }
  .otetudai .book::after {
    content: "";
    display: block;
    clear: both;
  }
  .otetudai .book h5 {
    line-height: 1.6;
    margin: 0 10px 10px;
    word-break: break-all;
  }
  .otetudai .book p {
    margin: 5px 10px 5px 10px;
  }
  .otetudai .book .oteimg {
    float: right;
    margin: 0 5px 5px 10px;
  }
  .otetudai .book .hoka {
    background: #F5F2F2;
    margin: 20px 5px 0;
    padding: 10px;
  }
  .otetudai .book .hoka p {
    margin: 5px;
  }
}
@media only screen and (max-width: 470px) {
  article h1 {
    margin: 20px 0 10px;
    font-size: 15px;
  }
  article h3 {
    font-size: 17px;
  }
}
@media only screen and (max-width: 344px) {
  article h1 {
    margin: 20px 0 10px;
    font-size: 13px;
  }
}