:root {
  --color-white: #fff;
  --color-black: #121115;
  --color-red: #48070c;
  --color-blue: #041336;
  --color-purple: #910781;
  --color-gray: #d2d4cf;
}

.l-wrap {
  overflow: hidden;
}

.l-menu__list-item a::after {
  content: none;
}

.l-in_head {
  height: 35rem;
  position: relative;
  z-index: 1;
  background: url(../img/bg/bg_ftr.jpg) repeat center center;
  background-size: 596px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-bottom: 20px;
}
@media screen and (max-width: 767px) {
  .l-in_head {
    background-size: 349px;
    height: 17.5rem;
    padding-bottom: 10px;
  }
}
.l-in_head::after {
  content: "";
  width: 100%;
  padding-top: 20px;
  position: absolute;
  bottom: 0;
  left: 0;
  background: url(../img/line_stripe.jpg) repeat-x center 0;
  background-size: 1200px;
  transform: scaleX(-1);
}
@media screen and (min-width: 768px) {
  .l-in_head::after {
    animation: line_deco_pc 30s linear infinite forwards;
  }
}
@media screen and (max-width: 767px) {
  .l-in_head::after {
    padding-top: 10px;
    background-size: 600px;
    animation: line_deco_sp 30s linear infinite forwards;
  }
}
.l-in_head__ttl {
  width: 42rem;
  margin: 0 auto;
}
@media screen and (max-width: 767px) {
  .l-in_head__ttl {
    width: 50%;
    background-size: 349px;
  }
}

.l-content {
  background-color: var(--color-black);
}
.l-content::after {
  content: "";
  width: 100%;
  padding-top: 20px;
  position: absolute;
  bottom: 0;
  left: 0;
  background: url(../img/line_stripe.jpg) repeat-x center 0;
  background-size: 1200px;
}
@media screen and (min-width: 768px) {
  .l-content::after {
    animation: line_deco_pc 30s linear infinite forwards;
  }
}
@media screen and (max-width: 767px) {
  .l-content::after {
    padding-top: 10px;
    background-size: 600px;
    animation: line_deco_sp 30s linear infinite forwards;
  }
}

.l-back {
  text-align: center;
  margin-top: 2.2rem;
}
@media screen and (max-width: 767px) {
  .l-back {
    margin-top: 0rem;
  }
}
.l-back__inner {
  display: inline-block;
  vertical-align: baseline;
  position: relative;
  color: var(--color-white);
  font-family: "Inter", sans-serif;
  font-weight: 300;
  text-decoration: none;
  font-size: 1.8rem;
  letter-spacing: 0.2rem;
  padding-bottom: 2px;
}
@media screen and (max-width: 767px) {
  .l-back__inner {
    padding-bottom: 4px;
    font-size: 1.4rem;
  }
}
@media (hover: hover) {
  .l-back__inner:hover::before {
    transform: scaleX(0);
  }
}
.l-back__inner::before {
  content: "";
  width: 100%;
  height: 1px;
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: var(--color-white);
  transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.p-topics_detail {
  position: relative;
  margin: 0 auto;
  width: 90%;
  max-width: 1200px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  padding-bottom: 6rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail {
    padding-bottom: 4rem;
  }
}
.p-topics_detail__head {
  padding: 6rem 3.8rem 2.3rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail__head {
    padding: 4.1rem 3.8rem 1.9rem;
  }
}
.p-topics_detail__head-ttl {
  width: 23rem;
  opacity: 0;
  transform: translateX(-30px);
}
.is-load .p-topics_detail__head-ttl {
  opacity: 1;
  transform: translateX(0);
  transition: transform 1.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 1s cubic-bezier(0.25, 1, 0.5, 1);
}
@media screen and (max-width: 767px) {
  .p-topics_detail__head-ttl {
    width: 14rem;
    margin: 0 auto;
  }
}
.p-topics_detail__content {
  opacity: 0;
  transform: translateY(30px);
}
.is-load .p-topics_detail__content {
  opacity: 1;
  transform: translateY(0);
  transition: transform 1.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.p-topics_detail_article__head {
  line-height: 1.5;
  position: relative;
  padding: 3.4rem 3.8rem 3.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head {
    padding: 1.6rem 2rem 1.9rem;
  }
}
.p-topics_detail_article__head-deco {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.p-topics_detail_article__head-deco-item {
  width: 1.2rem;
  height: 1.2rem;
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-deco-item {
    width: 0.8rem;
    height: 0.8rem;
  }
}
.p-topics_detail_article__head-deco-item:nth-child(1) {
  top: 1rem;
  left: 1rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-deco-item:nth-child(1) {
    top: 0.4rem;
    left: 0.4rem;
  }
}
.p-topics_detail_article__head-deco-item:nth-child(2) {
  top: 1rem;
  right: 1rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-deco-item:nth-child(2) {
    top: 0.4rem;
    right: 0.4rem;
  }
}
.p-topics_detail_article__head-deco-item:nth-child(3) {
  bottom: 1rem;
  left: 1rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-deco-item:nth-child(3) {
    bottom: 0.4rem;
    left: 0.4rem;
  }
}
.p-topics_detail_article__head-deco-item:nth-child(4) {
  bottom: 1rem;
  right: 1rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-deco-item:nth-child(4) {
    bottom: 0.4rem;
    right: 0.4rem;
  }
}
.p-topics_detail_article__head-label {
  font-family: "Inter", sans-serif;
  font-weight: 300;
  font-size: 1.5rem;
  letter-spacing: 0.05rem;
  margin-bottom: 0.5rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-label {
    font-size: 1.1rem;
  }
}
.p-topics_detail_article__head-ttl {
  font-size: 2.5rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-ttl {
    font-size: 1.6rem;
  }
}
.p-topics_detail_article__head-sub {
  font-size: 1.8rem;
  margin-top: 0.8rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__head-sub {
    font-size: 1.3rem;
  }
}
.p-topics_detail_article__content {
  padding: 3.4rem 3.8rem 3.6rem;
  line-height: 1.7;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content {
    padding: 4rem 2rem 3.6rem;
    font-size: 1.25rem;
    line-height: 1.65;
  }
}
@media screen and (min-width: 768px) {
  .p-topics_detail_article__content figure {
    max-width: 800px;
  }
}
.p-topics_detail_article__content h3 {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 2rem;
  border-bottom: 1px solid var(--color-white);
  padding-bottom: 4px;
  margin-bottom: 2.3rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    padding-bottom: 6px;
  }
}
.p-topics_detail_article__content h4 {
  font-weight: 400;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-block;
  vertical-align: baseline;
  padding: 0 0.9rem;
  font-size: 1.7rem;
  letter-spacing: 0.15rem;
  margin-bottom: 1.5rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content h4 {
    letter-spacing: 0.1rem;
    font-size: 1.3rem;
    padding-bottom: 2px;
    margin-bottom: 0.8rem;
  }
}
.p-topics_detail_article__content h5 {
  font-weight: 400;
  position: relative;
  font-size: 1.8rem;
  padding-left: 2.8rem;
  margin-bottom: 0.6rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content h5 {
    padding-left: 1.5rem;
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
  }
}
.p-topics_detail_article__content h5::before {
  content: "";
  width: 0.8rem;
  height: 0.8rem;
  position: absolute;
  top: 1.2rem;
  left: 0.2rem;
  background-color: var(--color-white);
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content h5::before {
    width: 0.6rem;
    height: 0.6rem;
    top: 0.8rem;
    left: 0.1rem;
  }
}
.p-topics_detail_article__content .is-red {
  color: #fc0130;
}
.p-topics_detail_article__content a {
  color: #116af2;
}
@media (hover: hover) {
  .p-topics_detail_article__content a:hover {
    text-decoration: none;
  }
}
.p-topics_detail_article__content span, .p-topics_detail_article__content strong {
  vertical-align: baseline;
}
.p-topics_detail_article__content iframe {
  width: 100% !important;
  height: auto !important;
}
@media screen and (min-width: 768px) {
  .p-topics_detail_article__content iframe {
    aspect-ratio: 16/9;
  }
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__content iframe {
    height: 51.73vw !important;
  }
}
.p-topics_detail_article__blockarea-item + .p-topics_detail_article__blockarea-item {
  margin-top: 1rem;
}
.p-topics_detail_article__blockarea p {
  padding-left: 3rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__blockarea p {
    padding-left: 1.5rem;
  }
}
.p-topics_detail_article__btnlist {
  display: flex;
  margin: 5.6rem auto 0;
  width: 74rem;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__btnlist {
    display: block;
    width: 86%;
    margin: 3.8rem auto 0;
  }
}
.p-topics_detail_article__btnlist-item {
  width: 48.5%;
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__btnlist-item {
    width: 100%;
  }
}
@media screen and (min-width: 768px) {
  .p-topics_detail_article__btnlist-item + .p-topics_detail_article__btnlist-item {
    margin-left: 3%;
  }
}
@media screen and (max-width: 767px) {
  .p-topics_detail_article__btnlist-item + .p-topics_detail_article__btnlist-item {
    margin-top: 1.5rem;
  }
}