@charset "UTF-8";
/*色設定*/
/*フォント*/
/*単色カラー設定*/
.blue {
  color: #3969ca;
}

.yellow {
  color: #e29934;
}

.red {
  color: #d63434;
}

.orange {
  color: #ff6636;
}

.bGreen {
  color: #008ea0;
}

/*単色カラー設定：塗り*/
li[class$=_base] {
  padding: 6px 12px 8px 12px;
  border: 0;
  border-radius: 0;
  color: #fff;
  font-size: 0.87em;
}

.blue_base {
  background-color: #3969ca;
}

.yellow_base {
  background-color: #e29934;
}

.red_base {
  background-color: #d63434;
}

.orange_base {
  background-color: #ff6636;
}

.bGreen_base {
  background-color: #008ea0;
}

@media (min-width: 482px) {
  #learnnatureBlock .on_sp {
    display: none;
  }
}
#learnnatureBlock .bgGray {
  background: rgba(242, 245, 248, 0.6);
}
#learnnatureBlock .secTtl01 {
  display: block;
  margin-bottom: 1.5em;
  color: #405c78;
  font-weight: 500;
  font-size: 1.6em;
  letter-spacing: 1px;
  text-align: center;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl01 {
    margin-bottom: 0.5em;
    font-size: 1.4em;
  }
}
#learnnatureBlock .secTtl01.big {
  font-size: 2em;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl01.big {
    font-size: 1.5em;
  }
}
#learnnatureBlock .secTtl02 {
  position: relative;
  margin: 0 0 1.4em 0;
  padding: 0 0 0.4em 1em;
  color: #008ea0;
  font-size: 1.47em;
  letter-spacing: 2px;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl02 {
    margin: 0 0 0.5em 0;
    font-size: 1.25em;
  }
}
#learnnatureBlock .secTtl02:before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: #19a78e;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl02:before {
    top: 5px;
  }
}
#learnnatureBlock .secTtl02:after {
  content: "";
  position: absolute;
  top: 20px;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: #008ea0;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl02:after {
    top: 17px;
  }
}
#learnnatureBlock .secTtl04 {
  margin-bottom: 1em;
  padding-bottom: 0.5em;
  border-bottom: 2px dotted #d1dce6;
  color: #405c78;
  font-weight: 600;
  font-size: 1.25em;
  line-height: 1.75;
  letter-spacing: 1px;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl04 {
    margin-bottom: 0.5em;
    font-size: 1.1em;
  }
}
#learnnatureBlock .secTtl05 {
  margin-bottom: 1em;
  color: #405c78;
  font-weight: 600;
  font-size: 1.25em;
  line-height: 1.75;
  letter-spacing: 1px;
}
@media (max-width: 481px) {
  #learnnatureBlock .secTtl05 {
    margin-bottom: 0.5em;
    font-size: 1.1em;
  }
}
#learnnatureBlock p,
#learnnatureBlock li {
  line-height: 2;
  letter-spacing: 1px;
}
#learnnatureBlock ol > li {
  list-style: decimal;
  margin-left: 1.5em;
}
#learnnatureBlock ul:has(.w50p), #learnnatureBlock ul:has(.w33p) {
  margin: 0 -20px;
}
@media (max-width: 750px) {
  #learnnatureBlock ul:has(.w50p), #learnnatureBlock ul:has(.w33p) {
    flex-direction: column;
    align-items: center;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock ul:has(.w50p), #learnnatureBlock ul:has(.w33p) {
    margin: 0 auto;
  }
}
#learnnatureBlock [class*=ar] {
  overflow: hidden;
}
#learnnatureBlock [class*=ar] img {
  height: 100%;
  object-fit: cover;
}
#learnnatureBlock .ar3_2 {
  aspect-ratio: 3/2;
}
#learnnatureBlock .ar2_3 {
  aspect-ratio: 2/3;
}
#learnnatureBlock .ar4_3 {
  aspect-ratio: 4/3;
}
#learnnatureBlock .ar1_1 {
  aspect-ratio: 1/1;
}
#learnnatureBlock .contain img {
  object-fit: contain;
}
#learnnatureBlock .w50p,
#learnnatureBlock .w33p {
  padding: 20px;
}
@media (max-width: 750px) {
  #learnnatureBlock .w50p,
  #learnnatureBlock .w33p {
    padding: 20px 0;
  }
}
#learnnatureBlock .w50p {
  width: 50%;
}
@media (max-width: 750px) {
  #learnnatureBlock .w50p {
    width: 100%;
    max-width: 480px;
  }
}
#learnnatureBlock .w33p {
  width: 33.3333333333%;
}
#learnnatureBlock .card {
  display: flex;
  flex-direction: column;
  align-items: center;
}
#learnnatureBlock .cardImg {
  margin-bottom: 1.5em;
}
@media (max-width: 481px) {
  #learnnatureBlock .cardImg {
    margin-bottom: 0.5em;
  }
}
#learnnatureBlock .media {
  display: flex;
  align-items: flex-start;
}
@media (max-width: 750px) {
  #learnnatureBlock .media {
    flex-direction: column;
    align-items: center;
  }
  #learnnatureBlock .media .viewDetail p {
    margin: 0 auto;
  }
}
#learnnatureBlock .mediaImg {
  width: 33.3333333333%;
}
@media (max-width: 750px) {
  #learnnatureBlock .mediaImg {
    width: 100%;
    max-width: 480px;
    margin-bottom: 30px;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .mediaImg {
    margin-bottom: 15px;
  }
}
#learnnatureBlock .mediaTx {
  width: calc(66.6666666667% - 40px);
}
@media (max-width: 750px) {
  #learnnatureBlock .mediaTx {
    width: 100%;
    max-width: 480px;
  }
}
#learnnatureBlock .mw450 {
  max-width: 450px;
}
#learnnatureBlock .viewDetail {
  margin-top: 30px;
}
@media (max-width: 481px) {
  #learnnatureBlock .viewDetail {
    margin-top: 20px;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .viewDetail:has(br.on_sp) p {
    height: auto;
  }
  #learnnatureBlock .viewDetail:has(br.on_sp) a {
    padding: 1em 5em 1em 2em !important;
    line-height: 1.75;
    text-align: left;
  }
}
#learnnatureBlock .viewDetail p {
  height: 64px;
}
#learnnatureBlock a[target=_blank]:before {
  content: "\f08e";
  position: absolute;
  top: 50%;
  right: 30px;
  transform: translateY(-50%);
  font-weight: 900;
  font-size: 1em;
  font-family: "Font Awesome 5 Pro";
}
@media (max-width: 481px) {
  #learnnatureBlock a[target=_blank]:before {
    right: 15px;
  }
}
#learnnatureBlock .btnBlc {
  justify-content: center;
  align-items: center;
  padding: 2em;
  background: #f2f5f8;
}
@media (max-width: 961px) {
  #learnnatureBlock .btnBlc {
    flex-direction: column;
    padding: 2em 0;
  }
}
#learnnatureBlock .btnBlc > p {
  padding: 0 2em;
}
#learnnatureBlock .btnBlc .viewDetail {
  margin: 0 0 0 30px;
}
@media (max-width: 961px) {
  #learnnatureBlock .btnBlc .viewDetail {
    margin: 20px 0 0;
  }
}
#learnnatureBlock .btnBlc .viewDetail p {
  max-width: none;
}
#learnnatureBlock .btnBlc .viewDetail a {
  padding: 0 2em;
}
#learnnatureBlock .btnBlc .viewDetail a[target=_blank] {
  padding: 0 5em 0 2em;
}
#learnnatureBlock .mt1_5e {
  margin-top: 1.5em;
}
#learnnatureBlock .mb1_5e {
  margin-bottom: 1.5em;
}
#learnnatureBlock .tar {
  display: block;
  text-align: right;
}
#learnnatureBlock .tar.small {
  line-height: 1.75;
}
@media (max-width: 961px) {
  #learnnatureBlock .tar.small {
    text-align: left;
  }
}
#learnnatureBlock .small {
  font-size: 0.9em;
}
#learnnatureBlock .gray {
  color: rgba(0, 0, 0, 0.6);
}
#learnnatureBlock .checkMark > * {
  position: relative;
  padding-left: 1.5em;
}
#learnnatureBlock .fa-check {
  position: absolute;
  top: 9px;
  left: 0;
  margin-right: 5px;
  color: #008ea0;
}
#learnnatureBlock .fa-arrow-circle-right {
  position: relative;
  top: 2px;
}
@media (max-width: 961px) {
  #learnnatureBlock .inner {
    padding: 3em 4%;
  }
}
#learnnatureBlock .inner:has(.blc02_04), #learnnatureBlock .inner:has(.blc04_01), #learnnatureBlock .inner:has(.blc04_05), #learnnatureBlock .inner:has(.blc05), #learnnatureBlock .inner:has(.blc06), #learnnatureBlock .inner:has(.blc07) {
  padding-top: 0;
}
#learnnatureBlock .intro {
  padding-bottom: 0;
}
#learnnatureBlock .blc01_01 .cardImg {
  position: relative;
}
#learnnatureBlock .blc01_01 h3 {
  position: absolute;
  bottom: 0;
  left: 0;
  padding: 0.5em 1em;
  background-image: linear-gradient(320deg, #008ea0, #19a78e 60%);
  color: #fff;
  font-size: 1.6em;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc01_01 h3 {
    padding: 0.25em 0.75em;
    font-size: 1.2em;
  }
}
#learnnatureBlock .blc01_02 {
  margin-top: 5em;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc01_02 {
    margin-top: 3em;
  }
}
#learnnatureBlock .blc01_02 .flexbox {
  justify-content: space-between;
  margin: 0 0 40px 0;
}
#learnnatureBlock .blc01_02 .card {
  width: calc(50% - 20px);
  margin-top: 40px;
  padding: 40px;
}
@media (max-width: 961px) {
  #learnnatureBlock .blc01_02 .card {
    width: 100%;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .blc01_02 .card {
    margin-top: 30px;
    padding: 20px;
  }
}
#learnnatureBlock .blc01_02 .cardImg {
  width: 100%;
  max-width: 270px;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc01_02 .cardImg {
    max-width: 210px;
  }
}
#learnnatureBlock .blc02 .media {
  justify-content: space-between;
  margin-bottom: 50px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(64, 92, 120, 0.25);
}
#learnnatureBlock .blc02 .media:nth-child(even) {
  flex-direction: row-reverse;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc02 .media:nth-child(even) {
    flex-direction: column;
  }
}
#learnnatureBlock .blc02 .media:last-child {
  margin-bottom: 0;
}
#learnnatureBlock .blc02_03 {
  margin-top: 6em;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc02_03 {
    margin-top: 3em;
  }
}
#learnnatureBlock .blc02_04 section {
  margin-bottom: 3em;
  padding-bottom: 4em;
  border-bottom: 1px solid rgba(64, 92, 120, 0.25);
}
#learnnatureBlock .blc02_04 h4 {
  margin-bottom: 3em;
  text-align: center;
}
#learnnatureBlock .blc02_04 h4 span {
  display: inline-block;
  padding-bottom: 0.25em;
  border-bottom: 3px solid #405c78;
  color: #405c78;
  font-weight: 600;
  font-size: 1.5em;
  letter-spacing: 1px;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc02_04 h4 span {
    font-size: 1.2em;
  }
}
#learnnatureBlock .blc02_04 .mainImg img {
  max-width: 720px;
  margin: 0 auto 2.5em;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc02_04 .mainImg img {
    max-width: 480px;
  }
}
#learnnatureBlock .blc02_04 .desc {
  margin-bottom: 1.5em;
}
#learnnatureBlock .blc02_04 .imgs {
  justify-content: center;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc02_04 .imgs {
    flex-direction: row;
    margin: 0 -5px;
  }
  #learnnatureBlock .blc02_04 .imgs .w33p {
    padding: 5px;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .blc02_04 .imgs {
    margin-bottom: 30px;
  }
  #learnnatureBlock .blc02_04 .imgs .w33p {
    width: 50%;
  }
}
#learnnatureBlock .blc02_04 .imgs img {
  background: #f2f5f8;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc03 .w50p {
    margin-top: 20px;
    padding: 0;
  }
}
#learnnatureBlock .blc03 .tx {
  margin-top: 20px;
  padding: 30px;
  border-top: 1px solid rgba(64, 92, 120, 0.25);
  border-bottom: 1px solid rgba(64, 92, 120, 0.25);
}
@media (max-width: 750px) {
  #learnnatureBlock .blc03 .tx {
    margin-top: 30px;
    padding: 15px;
  }
}
#learnnatureBlock .blc03 span {
  text-align: right;
}
#learnnatureBlock .blc04 .inner > section + section {
  margin-top: 3em;
}
#learnnatureBlock .blc04 ol > li + li {
  margin-top: 1em;
}
#learnnatureBlock .blc04 dt {
  color: #008ea0;
  font-weight: 600;
  font-size: 1.1em;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc04 dt {
    font-size: 1em;
  }
}
#learnnatureBlock .blc04_03 {
  margin-bottom: 30px;
}
#learnnatureBlock .blc04_03 .em {
  margin-bottom: 1em;
  color: #008ea0;
  font-weight: 600;
}
#learnnatureBlock .blc04_03 li {
  list-style: disc;
  margin-left: 1.5em;
}
#learnnatureBlock .blc04_05 .bgGray {
  padding: 4em;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc04_05 .bgGray {
    padding: 1em;
  }
}
@media (max-width: 750px) {
  #learnnatureBlock .blc04_05 section {
    max-width: 480px;
    margin: 0 auto;
  }
  #learnnatureBlock .blc04_05 section + section .secTtl05 {
    margin-top: 4em !important;
  }
}
@media (max-width: 750px) and (max-width: 481px) {
  #learnnatureBlock .blc04_05 section + section .secTtl05 {
    margin-top: 3em !important;
  }
}
#learnnatureBlock .blc04_05 section + section {
  margin-top: 2em;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc04_05 .media {
    flex-direction: column-reverse;
  }
}
#learnnatureBlock .blc04_05 .mediaTx {
  margin-right: 40px;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc04_05 .mediaTx {
    margin-right: 0;
  }
}
@media (max-width: 750px) {
  #learnnatureBlock .blc04_05 .mediaImg {
    max-width: 210px;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .blc04_05 .mediaImg {
    margin-bottom: 25px;
  }
}
@media (max-width: 750px) {
  #learnnatureBlock .blc04_05 .viewDetail p {
    margin: 0 auto;
  }
}
#learnnatureBlock .blc05 .inner {
  padding-bottom: 0;
}
#learnnatureBlock .blc05 p a {
  color: #008ea0;
  text-decoration: underline;
}
#learnnatureBlock .blc05 p a:hover {
  text-decoration: none;
}
#learnnatureBlock .blc05 .imgs {
  margin-top: 20px;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc05 li {
    width: 100%;
    max-width: 480px;
  }
}
@media (max-width: 481px) {
  #learnnatureBlock .blc05 li {
    padding: 10px 0;
  }
}
#learnnatureBlock .blc05 li a {
  display: block;
  height: 100%;
  padding: 15px;
}
#learnnatureBlock .blc05 li a:hover {
  background: rgba(64, 92, 120, 0.1);
}
#learnnatureBlock .blc05 h3 {
  margin-top: 15px;
  color: #405c78;
  font-weight: 600;
}
#learnnatureBlock .blc06 .inner {
  padding-bottom: 0;
}
#learnnatureBlock .blc06 .btnBlc {
  justify-content: flex-start;
}
#learnnatureBlock .blc07 .btnBlc .viewDetail {
  min-width: 350px;
}
@media (max-width: 481px) {
  #learnnatureBlock .blc07 .btnBlc .viewDetail {
    min-width: 0;
  }
}
#learnnatureBlock .blc08 ul {
  margin: 0 -5px;
}
@media (max-width: 750px) {
  #learnnatureBlock .blc08 ul {
    flex-direction: column;
    align-items: center;
  }
}
#learnnatureBlock .blc08 li {
  width: 33.3333333333%;
  padding: 8px 5px;
}
@media (max-width: 1150px) {
  #learnnatureBlock .blc08 li {
    width: 50%;
  }
}
@media (max-width: 750px) {
  #learnnatureBlock .blc08 li {
    width: 100%;
    max-width: 390px;
  }
}
#learnnatureBlock .blc08 li p {
  max-width: none;
}
#learnnatureBlock .blc08 a {
  padding-left: 30px;
  text-align: left;
}
@media (max-width: 1150px) {
  #learnnatureBlock .blc08 a {
    padding-left: 20px;
  }
}
#learnnatureBlock .blc08 a::before {
  right: 20px;
}/*# sourceMappingURL=learnnature.css.map */