.c-page-hd::before {
  background-image: url(../images/topics/txt_hd.png);
}

@media (width <= 768px) {
  .c-page-hd::before {
    animation: hd-sp calc(13 * 5s) linear infinite;
  }
}
@media (769px <= width) {
  .c-page-hd::before {
    animation: hd-pc calc(13 * 5s) linear infinite;
  }
}
@keyframes hd-sp {
  0% {
    background-position-x: 0;
  }
  100% {
    background-position-x: -350px;
  }
}
@keyframes hd-pc {
  0% {
    background-position-x: 0;
  }
  100% {
    background-position-x: -769px;
  }
}
/* =========================================================
topics
========================================================= */
/*------------------------------------------
recent
------------------------------------------*/
.topics-recent {
  position: relative;
}

@media (width <= 768px) {
  .topics-recent {
    padding-top: 30px;
  }
}
@media (769px <= width) {
  .topics-recent {
    padding-top: 65px;
  }
}
.topics-recent .c-sec01__in {
  position: relative;
}

@media (width <= 768px) {
  .topics-recent__head {
    text-align: center;
  }
}
@media (769px <= width <= 1024px) {
  .topics-recent__head {
    text-align: center;
  }
}
@media (1025px <= width) {
  .topics-recent__head {
    text-align: right;
    position: absolute;
    top: -5px;
    right: calc(50% + (max(36.89vw, 395px) / 2) + 5.27vw);
  }
}
.topics-recent__head .ja {
  color: #2187FF;
  line-height: 1;
  letter-spacing: 0.12em;
}

@media (width <= 768px) {
  .topics-recent__head .ja {
    font-size: 18px;
  }
}
@media (769px <= width) {
  .topics-recent__head .ja {
    font-size: 24px;
  }
}
.topics-recent__head .en {
  font-family: "Lato", sans-serif;
  font-size: 14px;
  line-height: 1;
  font-weight: 500;
}

@media (width <= 768px) {
  .topics-recent__head .en {
    margin: 5px auto 0;
  }
}
@media (769px <= width) {
  .topics-recent__head .en {
    margin: 10px auto 0;
  }
}
.topics-recent__list {
  overflow: visible;
}

@media (width <= 768px) {
  .topics-recent__list {
    width: 295px;
    margin: 25px auto 0;
  }
}
@media (769px <= width) {
  .topics-recent__list {
    width: 395px;
  }
}
@media (769px <= width <= 1024px) {
  .topics-recent__list {
    margin: 50px auto;
  }
}
@media (1025px <= width) {
  .topics-recent__list {
    margin: 0 auto;
  }
}
@media (width <= 768px) {
  .topics-recent__list.swiper-initialized {
    width: 78.66vw;
  }
}
@media (769px <= width) {
  .topics-recent__list.swiper-initialized {
    width: max(36.89vw, 395px);
  }
}
.topics-recent__list .swiper-wrapper {
  align-items: flex-end;
}

.topics-recent__list .swiper-slide.swiper-slide-active {
  padding: 0;
  transition: padding 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (width <= 768px) {
  .topics-recent__list .swiper-slide.swiper-slide-prev {
    padding-right: 5.33vw;
  }
}
@media (769px <= width) {
  .topics-recent__list .swiper-slide.swiper-slide-prev {
    padding-right: 5.27vw;
  }
}
@media (width <= 768px) {
  .topics-recent__list .swiper-slide.swiper-slide-next {
    padding-left: 5.33vw;
  }
}
@media (769px <= width) {
  .topics-recent__list .swiper-slide.swiper-slide-next {
    padding-left: 5.27vw;
  }
}
.topics-recent__list [class*=swiper-button-] {
  position: absolute;
  bottom: auto;
  left: auto;
  right: auto;
  top: 50%;
  transform: translateY(-50%);
}

@media (width <= 768px) {
  .topics-recent__list .swiper-button-prev {
    left: -30px;
  }
}
@media (769px <= width) {
  .topics-recent__list .swiper-button-prev {
    right: calc(100% + 1.17vw);
  }
}
@media (width <= 768px) {
  .topics-recent__list .swiper-button-next {
    right: -30px;
  }
}
@media (769px <= width) {
  .topics-recent__list .swiper-button-next {
    left: calc(100% + 1.17vw);
  }
}
@media (769px <= width) {
  .topics-recent__list .c-card02__detail {
    padding: 12px 30px 30px;
  }
}
@media (width <= 768px) {
  .topics-recent__list .c-card02__date {
    font-size: 13px;
  }
}
@media (769px <= width) {
  .topics-recent__list .c-card02__date {
    font-size: 14px;
  }
}
.topics-recent__list .c-card02__txt01 {
  height: 5.5em;
  overflow: hidden;
  display: -webkit-box;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

@media (width <= 768px) {
  .topics-recent__list .c-card02__txt01 {
    font-size: 14px;
  }
}
@media (769px <= width) {
  .topics-recent__list .c-card02__txt01 {
    font-size: 18px;
  }
}
@media (width <= 768px) {
  .topics-recent__list .c-card02.swiper-slide-active .c-new {
    width: 54px;
  }
}
/*------------------------------------------
list
------------------------------------------*/
@media (width <= 768px) {
  .topics-list {
    padding-top: 35px;
  }
}
@media (769px <= width) {
  .topics-list {
    padding-top: 80px;
  }
}
.topics-list__nav {
  margin: 0 auto;
}

.topics-list__nav .list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

@media (width <= 768px) {
  .topics-list__nav .list {
    gap: 8px;
  }
}
@media (769px <= width) {
  .topics-list__nav .list {
    gap: 13px;
  }
}
@media (width <= 768px) {
  .topics-list__nav .c-btn01 {
    width: calc((100% - 8px) / 2);
  }
}
@media (769px <= width) {
  .topics-list__nav .c-btn01 {
    width: calc((100% - (20px * 3)) / 4);
  }
}
@media (width <= 768px) {
  .topics-list__nav .c-btn01 a {
    height: 40px;
  }
}
@media (769px <= width) {
  .topics-list__nav .c-btn01 a {
    height: 60px;
  }
}
.topics-list__nav .c-btn01.is-current a {
  background: #2187FF;
  color: #fff;
  pointer-events: none;
}

@media (width <= 768px) {
  .topics-list .c-col2-3 {
    margin: 30px auto 0;
  }
}
@media (769px <= width) {
  .topics-list .c-col2-3 {
    margin: 60px auto 0;
  }
}
@media (width <= 768px) {
  .topics-list .c-card01 .c-new {
    width: 40px;
    top: -3px;
    left: -3px;
  }
}
@media (width <= 768px) {
  .topics-list .c-card01 .c-new:before {
    margin: 0 0 0 0.2em;
  }
}
@media (width <= 768px) {
  .topics-list .c-pager {
    margin: 30px auto 0;
  }
}
@media (769px <= width) {
  .topics-list .c-pager {
    margin: 60px auto 0;
  }
}
/* =========================================================
topics detail
========================================================= */
@media (width <= 768px) {
  .topics-detail {
    padding-top: 30px;
  }
}
@media (769px <= width) {
  .topics-detail {
    padding-top: 60px;
  }
}
@media (769px <= width) {
  .topics-detail .c-sec01__in {
    width: 63.25vw;
  }
}
.topics-detail__date {
  font-family: "Lato", sans-serif;
  color: #A2A2A2;
  line-height: 1;
  letter-spacing: 0;
}

@media (width <= 768px) {
  .topics-detail__date {
    font-size: 13px;
  }
}
@media (769px <= width) {
  .topics-detail__date {
    font-size: 16px;
  }
}
@media (width <= 768px) {
  .topics-detail__ttl {
    margin: 15px auto 0;
    font-size: 15px;
    line-height: 1.73;
  }
}
@media (769px <= width) {
  .topics-detail__ttl {
    margin: 20px auto 0;
    font-size: 26px;
    line-height: 1.92;
  }
}
@media (width <= 768px) {
  .topics-detail__article {
    margin: 25px auto 0;
    font-size: 12px;
    line-height: 2;
  }
}
@media (769px <= width) {
  .topics-detail__article {
    margin: 40px auto 0;
    font-size: 16px;
    line-height: 1.87;
  }
}
@media (width <= 768px) {
  .topics-detail .c-btn01 {
    width: 183px;
    margin: 30px auto 0;
  }
}
@media (769px <= width) {
  .topics-detail .c-btn01 {
    width: 276px;
    margin: 60px auto 0;
  }
}