.about_special-ps .sec-detail {
  max-width: 1100px;
}
.about_special-ps .sec-detail .box_txt {
  padding: 35px 40px;
  border: 1px solid #ccc;
  background: #f9f9f9;
}
.about_special-ps .sec-detail .box_txt .ta_r {
  display: block;
  text-align: right;
}
.about_special-ps .ps_links {
  max-width: 1100px;
  width: 100%;
  margin: 50px auto 0;
  padding-top: 47px;
  font-size: 1.6rem;
  line-height: 1.875;
  border-top: 1px solid #ccc;
}
.about_special-ps .ps_links a {
  text-decoration: underline;
  color: #1d3a5b;
}
.about_special-ps .ps_links a:hover {
  text-decoration: none;
}
@media screen and (max-width: 833px) {
  .about_special-ps .sec-detail .box_txt {
    padding: 18px 20px;
  }
  .about_special-ps .ps_links {
    margin: 40px auto 0;
    padding-top: 37px;
  }
}

.about_special .sec-psvol6 {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.about_special .sec-psvol6 .psvol6_ttl {
  text-align: center;
}
.about_special .sec-psvol6 .psvol6_copy {
  margin-top: 25px;
  font-size: 1.6rem;
  line-height: 1.875;
  text-align: center;
}
.about_special .sec-psvol6 .psvol6_txt {
  width: 100%;
  margin-top: 50px;
  font-size: 0;
  overflow-x: scroll;
}
.about_special .sec-psvol6 .psvol6_txt img {
  max-width: inherit;
  width: 100%;
  height: auto;
}
@media screen and (max-width: 833px) {
  .about_special .sec-psvol6 .psvol6_copy {
    margin-top: 15px;
  }
  .about_special .sec-psvol6 .psvol6_txt {
    margin-top: 35px;
  }
  .about_special .sec-psvol6 .psvol6_txt img {
    min-width: 580px;
  }
}
@media only screen and (max-width: 320px) {
  .about_special .sec-psvol6 .psvol6_txt img {
    min-width: 490px;
  }
}

.about_special .sec-psvol7 {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.about_special .sec-psvol7 + .sec-psvol7 {
  margin-top: 50px;
}
.about_special .sec-psvol7 .psvol7_ttl {
  margin-bottom: 40px;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: #fff;
  background-color: #003559;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  flex-wrap: wrap;
}
.about_special .sec-psvol7 .psvol7_ttl_i {
  display: inline-block;
  margin-right: 30px;
  padding: 19px 30px;
  background-color: #236486;
}
.about_special .sec-psvol7 .key_sentence_list {
  margin: -15px;
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
  flex-wrap: wrap;
}
.about_special .sec-psvol7 .key_sentence_itm {
  width: calc(50% - 30px);
  margin: 15px;
  padding: 30px;
  background-color: #f8f8f8;
  border: 1px solid #cbcbcb;
  border-radius: 6px;
}
.about_special .sec-psvol7 .key_sentence_txt {
  font-size: 1.6rem;
  line-height: 1.875;
}
.about_special .sec-psvol7 .key_sentence_ttl {
  font-size: 1.5rem;
  line-height: 1.875;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid #003559;
  text-align: right;
}
@media screen and (max-width: 833px) {
  .about_special .sec-psvol7 + .sec-psvol7 {
    margin-top: 40px;
  }
  .about_special .sec-psvol7 .psvol7_ttl {
    margin-bottom: 10px;
    font-size: 1.6rem;
  }
  .about_special .sec-psvol7 .psvol7_ttl_i {
    margin-right: 20px;
    padding: 10px 20px;
  }
  .about_special .sec-psvol7 .key_sentence_list {
    margin: 0;
  }
  .about_special .sec-psvol7 .key_sentence_itm {
    width: 100%;
    margin: 20px 0 0;
    padding: 20px;
    border-radius: 4px;
  }
  .about_special .sec-psvol7 .key_sentence_txt {
    font-size: 1.6rem;
    line-height: 1.6;
  }
  .about_special .sec-psvol7 .key_sentence_ttl {
    font-size: 1.5rem;
  }
}

.about_special .sec-psvol8 {
  width: 100%;
  max-width: 1100px;
  margin: 70px auto 80px; }
  .about_special .sec-psvol8 .psvol8_ttl {
    text-align: center;
    font-size: 4rem;
  }
  .about_special .sec-psvol8 .psvol8_txt {
    width: 100%;
    margin-top: 35px;
    font-size: 0;
    overflow-x: scroll;
  }
  .about_special .sec-psvol8 .psvol8_txt img {
    max-width: inherit;
    width: 100%;
    height: auto;
  }
@media screen and (max-width: 1200px) {
  .about_special .sec-psvol8 .psvol8_ttl {
    font-size: 3rem;
  }
}
@media screen and (max-width: 833px) {
  .about_special .sec-psvol8 {
    margin: 0 auto;
  }
  .about_special .sec-psvol8 .psvol8_ttl {
    font-size: 2.4rem;
  }
  .about_special .sec-psvol8 .psvol8_txt {
    margin-top: 35px;
  }
  .about_special .sec-psvol8 .psvol8_txt img {
    min-width: 580px;
  }
}
@media only screen and (max-width: 320px) {
  .about_special .sec-psvol8 .psvol8_txt img {
    min-width: 490px;
  }
}