@charset "UTF-8";
/* CSS Document */

/* デフォルト グーグルフォント */
@import url("https://fonts.googleapis.com/css?family=M+PLUS+1p|Noto+Sans+JP:400,500&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Inter:opsz@14..32&display=swap");
body {
  font-family: "M PLUS 1p", sans-serif;
  font-family: "Noto Sans JP", sans-serif;
  font-family: "Inter", sans-serif;
  font-size: 16px;
  color: #2c2c2c;
}

/*マウスオーバーで画像を白くする*/

.mat110px {
  margin-top: 110px;
}

/*flexコンテナ_水平垂直を中央詰め*/
.flexcontainer_cc {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/*flexコンテナ_両端詰め*/
.flexcontainer_sb {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

/*全体1024pxフィールド*/
.whole_field {
  width: 1024px;
}

.row:before,
.row:after {
  content: "";
  display: table;
}

.row:after {
  clear: both;
}

.col {
  width: 100%;
}

/* 文字 */

.font_weight {
  font-weight: 500;
}

.font_22px {
  font-size: 22px;
}

.font_24px {
  font-size: 24px;
}

/* margin */
.mb8px {
  margin-bottom: 8px;
}

.mb10px {
  margin-bottom: 10px;
}

.mb15px {
  margin-bottom: 15px;
}

.mb25px {
  margin-bottom: 25px;
}

.ml5px {
  margin-left: 5px;
}

.mr5px {
  margin-right: 5px;
}

.mr20px {
  margin-right: 20px;
}

/* 画像の基本 */
img {
  width: 100%;
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

/* サイトロゴ「BGMの研究・リサーチ」SVG */
.logo img {
  width: 90%;
}

/* header下の全体コンテンツ幅 */
.entire_box {
  max-width: 1024px;
  margin: 0 auto;
}

/*記事BOXの中央寄せ*/
.center_box {
  max-width: 50%;
  margin: 0 auto;
}

/*ボーダーラインのみ*/
.border_line_do {
  border-bottom: dotted 2px #22a4d2;
  padding-bottom: 10px;
  margin-bottom: 10px;
}

/*テキスト内の文字リンク*/

.all_articlelink img {
  display: inline-block;
  vertical-align: middle;
  width: 15px;
  height: 15px;
  margin-top: -3px;
}

.all_articlelink a {
  text-decoration: none;
  color: #007eb9;
  font-weight: 500;
}

@media (any-hover: hover) {
  .all_articlelink a:hover {
    text-decoration: underline;
    color: #007eb9;
    font-weight: 500;
  }
}

/*テキストの間多め*/
.txt_lineheight {
  line-height: 1.2em;
  letter-spacing: 1px;
}

@media screen and (max-width: 768px) {
  .mat110px {
    margin-top: 80px;
  }

  /*全体1024pxフィールド*/
  .whole_field {
    width: 100%;
  }

  .entire_box {
    max-width: 90%;
    margin: 0 auto;
  }

  /* サイトロゴ「BGMの研究・リサーチ」SVG */
  .logo img {
    width: 70%;
  }
}

/* ===========================================
 * 改修用　20240625
 * ======================================== */

/* body
--------------------------------------------*/
body.top {
  position: relative;
}

/* column
--------------------------------------------*/
.l-column--narrow {
  width: 800px;
  margin: 0 auto;
}

@media screen and (max-width: 768px) {
  .l-column--narrow {
    width: 100%;
  }

  .entire_box {
    max-width: 100%;
    margin: 0 auto;
    padding-right: 20px;
    padding-left: 20px;
  }
}

/* contents
--------------------------------------------*/
.l-lower-contents {
  padding-top: 140px;
}

@media screen and (max-width: 768px) {
  .l-lower-contents {
    padding-top: 90px;
  }
}

/* card
--------------------------------------------*/
.card-swiper {
  position: relative;
  overflow: hidden;
  padding-bottom: 90px;
}

.card-swiper .swiper-slide {
  width: 280px !important;
}

.card-swiper .swiper-horizontal > .swiper-scrollbar,
.swiper-scrollbar.swiper-scrollbar-horizontal {
  width: 840px !important;
  height: 2px !important;
  bottom: 30px !important;
}

.card-swiper .swiper-horizontal > .swiper-scrollbar,
.swiper-scrollbar.swiper-scrollbar-horizontal .swiper-scrollbar-drag {
  /* width: 415px !important; */
  background-color: #39bfde;
}

/* 矢印*/
.card-swiper .swiper-button-prev,
.card-swiper .swiper-button-next {
  height: 60px !important;
  width: 60px !important;
}

.card-swiper .swiper-button-prev {
  right: 75px !important;
  left: auto;
  top: auto !important;
  bottom: 0 !important;
}

.card-swiper .swiper-button-next {
  right: 0 !important;
  top: auto !important;
  bottom: 0 !important;
}

.card-swiper .swiper-button-prev:after,
.card-swiper .swiper-button-next:after {
  content: "" !important;
  background-repeat: no-repeat;
  background-size: contain;
  height: 60px;
  width: 60px;
  margin: auto;
}

.card-swiper .swiper-button-prev:after {
  background-image: url(./../image/icon_slider_arrow.svg);
  transform: rotate(-180deg);
}

.card-swiper .swiper-button-next:after {
  background-image: url(./../image/icon_slider_arrow.svg);
}

.c-card__item {
  text-decoration: none;
  grid-row: span 6;

  padding: 10px 20px 30px;
  background: #f8f8f8;
}

@media (any-hover: hover) {
  .c-card__item:hover {
    opacity: 0.6;
  }
}

.c-card__head {
  position: relative;
}

.c-card__head img {
  width: 40px;
}

.c-card__head p {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.cat-study .c-card__head p {
  color: #23a5d3;
}

.cat-research .c-card__head p {
  color: #51b33e;
}

.cat-column .c-card__head p {
  color: #ea4f4f;
}

.c-card__image {
  padding-top: 10px;
}

.c-card__image img {
  aspect-ratio: 280 / 150;
  object-fit: cover;
}

.c-card__ttl {
  padding-top: 24px;
  font-size: 20px;
  line-height: 1.5;
  color: #000;
  font-weight: bold;
}

.c-card__desc {
  margin-top: 20px;
  padding-top: 15px;
  font-size: 14px;
  line-height: 1.4;
  border-top: 1px solid #ccc;
  color: #000;
}

.c-card__date {
  display: flex;
  padding-top: 20px;
  justify-content: space-between;
  position: relative;
}

.c-card__date p {
  display: flex;
  align-items: center;
  justify-content: center;
}

.c-card__date p:nth-of-type(2) {
  position: relative;
  padding-left: 30px;
}

.c-card__date p:nth-of-type(2)::before {
  position: absolute;
  content: "／";
  left: 0;
  font-size: 13px;
  color: #9b9b9b;
}

.c-card__date span {
  font-size: 13px;
  color: #9b9b9b;
}

.c-card__date time {
  font-size: 13px;
  color: #9b9b9b;
}

.c-card__btn {
  position: relative;
  width: 150px;
  height: 36px;
  border: 1px solid #000;
  box-sizing: border-box;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  margin-top: 25px;
}

.c-card__btn span {
  font-size: 15px;
  font-family: "Inter", sans-serif;
  font-weight: 400;
  padding-bottom: 3px;
  color: #000;
}

.c-card__btn img {
  position: absolute;
  width: 12px;
  height: auto;
  top: 50%;
  right: 15px;
  transform: translateY(-50%);
}

@media screen and (max-width: 768px) {
  .card-swiper {
    /* padding-right: 20%; */
    padding-right: 25vw;
    padding-bottom: 55px;
  }

  .card-swiper .swiper-wrapper {
    width: 65.3vw !important;
  }

  .card-swiper .swiper-slide {
    /* max-width: calc((245 / 375) * 100%); */
    /* width: 100% !important; */
    width: 57.4vw !important;
  }

  .card-swiper .swiper-button-prev,
  .card-swiper .swiper-button-next {
    height: 40px !important;
    width: 40px !important;
  }

  .card-swiper .swiper-button-prev:after,
  .card-swiper .swiper-button-next:after {
    height: 40px;
    width: 40px;
  }

  .card-swiper .swiper-button-prev {
    right: 55px !important;
  }

  .card-swiper .swiper-horizontal > .swiper-scrollbar,
  .swiper-scrollbar.swiper-scrollbar-horizontal {
    width: 216px !important;
    bottom: 18px !important;
  }

  .card-swiper .swiper-horizontal > .swiper-scrollbar,
  .swiper-scrollbar.swiper-scrollbar-horizontal .swiper-scrollbar-drag {
    width: 36px !important;
  }

  .c-card__item {
    padding: 10px 15px 30px;
  }

  .c-card__head img {
    width: 30px;
  }

  .c-card__head p {
    font-size: 15px;
  }

  .c-card__image {
    padding-top: 15px;
  }

  .c-card__image img {
    aspect-ratio: 430 / 230;
  }

  .c-card__ttl {
    padding-top: 20px;
    font-size: 16px;
  }

  .c-card__desc {
    margin-top: 15px;
    font-size: 12px;
  }

  .c-card__date {
    padding-top: 15px;
    flex-direction: column;
    align-items: flex-start;
  }

  .c-card__date p:nth-of-type(2) {
    padding-left: 0;
  }

  .c-card__date p:nth-of-type(2)::before {
    display: none;
  }

  .c-card__date span {
    font-size: 11px;
  }

  .c-card__date time {
    font-size: 11px;
  }

  .c-card__btn span {
    font-size: 14px;
  }
}

/* ttl
--------------------------------------------*/
.c-ttl {
  display: flex;
  align-items: baseline;
  gap: 20px;
}

.c-ttl_wrap {
  display: inline-flex;
  flex-direction: column;
  gap: 13px;
}

.c-ttl_en {
  font-size: 46px;
  line-height: 1.45;
}

.c-ttl_ja {
  font-size: 18px;
}

.top-subttl {
  font-size: 14px;
  letter-spacing: 0;
}

.c-ttl__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-left: 20px;
}

.c-ttl__icon {
  width: 58px;
  height: 58px;
}

.c-ttl__icon img {
  width: 100%;
  height: auto;
}

.c-ttl__bottom {
  padding-top: 27px;
}

.c-ttl__desc {
  font-size: 20px;
}

.c-ttl_border {
  position: relative;
  padding-bottom: 0.5em;
  border-bottom: 4px solid #d9d9d9;
  font-size: 32px;
  margin-top: 5px;
  padding-bottom: 26px;
}

.c-ttl_border::after {
  position: absolute;
  content: " ";
  border-bottom: solid 4px #39bfde;
  bottom: -4px;
  width: 10%;
  display: block;
  left: 0;
}

@media screen and (max-width: 768px) {
  .c-ttl {
    gap: 10px;
  }

  .c-ttl_en {
    font-size: 25px;
    line-height: 1;
  }

  .c-ttl_ja {
    font-size: 12px;
  }

  .c-ttl__inner {
    padding-left: 0;
    gap: 10px;
  }

  .c-ttl__icon {
    width: 40px;
    height: 40px;
  }

  .c-ttl__bottom {
    padding-top: 20px;
  }

  .c-ttl__desc {
    font-size: 13px;
  }

  .top-subttl {
    font-size: 13px;
  }

  .top_info_conduct {
    position: absolute;
    top: 0;
    right: 0;
  }

  .top_info_conduct a {
    line-height: 2.4;
  }
}

/* flex
--------------------------------------------*/
.c-flex-top {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 20px;
}

.c-flex-txt {
  width: 600px;
}

@media screen and (max-width: 768px) {
  .c-flex-top {
    flex-direction: column;
    gap: 40px;
  }

  .c-flex-txt {
    width: 100%;
  }
}

/* img
--------------------------------------------*/
.img-logo-about {
  width: 180px;
}

.img-logo-about img {
  width: 100%;
  height: auto;
}

@media screen and (max-width: 768px) {
  .img-logo-about {
    width: 200px;
    margin: 0 auto;
  }
}

/* txt
--------------------------------------------*/
.c-txt-regular {
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0;
}

.c-txt-medium {
  font-size: 20px;
  line-height: 1.5;
  letter-spacing: 0;
}

.c-txt-large {
  font-size: 24px;
  line-height: 1.45;
  letter-spacing: 0;
}

@media screen and (max-width: 768px) {
  .c-txt-regular {
    font-size: 14px;
    line-height: 2.25;
  }

  .c-txt-medium {
    font-size: 18px;
    line-height: 2;
  }

  .c-txt-large {
    font-size: 20px;
  }
}

/* btn
--------------------------------------------*/
.c-btn-01__wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 64px;
}

.c-btn-01 {
  position: relative;
  text-decoration: none;
  border: 1px solid #000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 480px;
  height: 130px;
  border-radius: 8px;
  box-sizing: border-box;
}

@media (any-hover: hover) {
  .c-btn-01:hover {
    opacity: 0.6;
  }
}

.c-btn-01 p {
  display: flex;
  align-items: center;
  gap: 20px;
}

.c-btn-01 span {
  display: block;
  color: #000;
  letter-spacing: 0;
  line-height: 1.44;
}

.c-btn-01--en {
  font-size: 36px;
}

.c-btn-01--ja {
  font-size: 18px;
}

.c-btn-01__icon {
  position: absolute;
  width: 20px;
  height: auto;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.c-btn-02 {
  position: relative;
  /* width: 358px; */
  height: 60px;
  margin: 0 auto;
  /* display: flex; */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #000;
  border-radius: 30px;
  text-decoration: none;
  padding-inline: 58px;
}

@media (any-hover: hover) {
  .c-btn-02:hover {
    opacity: 0.6;
  }
}

.c-btn-02__txt {
  font-size: 15px;
  color: #000;
}

.c-btn-02__icon {
  position: absolute;
  width: 12px;
  height: auto;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
}

@media screen and (max-width: 768px) {
  .c-btn-01__wrapper {
    flex-direction: column;
    gap: 20px;
  }

  .c-btn-01 {
    width: 90%;
    height: 80px;
  }

  .c-btn-01 p {
    gap: 10px;
  }

  .c-btn-01--en {
    font-size: 28px;
  }

  .c-btn-01--ja {
    font-size: 14px;
  }

  .c-btn-01__icon {
    right: 15px;
    width: 16px;
  }

  .c-btn-02 {
    width: auto;
    height: 60px;
  }

  .c-btn-02__txt {
    font-size: 14px;
  }
}

/* text
--------------------------------------------*/
.u-ta-center {
  text-align: center;
}

/* border
--------------------------------------------*/
.c-border {
  border-top: 1px solid #d9d9d9;
}

/* padding
--------------------------------------------*/
/* pc */
@media screen and (min-width: 769px) {
  .u-pt-10-pc {
    padding-top: 10px;
  }

  .u-pt-40-pc {
    padding-top: 40px;
  }

  .u-pt-60-pc {
    padding-top: 60px;
  }

  .u-pt-100-pc {
    padding-top: 100px;
  }

  .u-pt-120-pc {
    padding-top: 120px;
  }
}

/* sp */
@media screen and (max-width: 768px) {
  .u-pt-20-sp {
    padding-top: 20px;
  }

  .u-pt-30-sp {
    padding-top: 30px;
  }

  .u-pt-40-sp {
    padding-top: 40px;
  }

  .u-pt-60-sp {
    padding-top: 60px;
  }

  .u-pt-100-sp {
    padding-top: 100px;
  }

  .u-pt-120-sp {
    padding-top: 120px;
  }
}

/* margin
--------------------------------------------*/
/* pc */
@media screen and (min-width: 769px) {
  .u-mt-50-pc {
    margin-top: 50px;
  }
}

/* sp */
@media screen and (max-width: 768px) {
  .u-mt-40-sp {
    margin-top: 40px;
  }
}

/* list
--------------------------------------------*/
.c-list-item {
  padding: 40px 0 34px;
  border-bottom: 1px dotted #39bfde;
  list-style: none;
}

.c-list-item__top {
  display: flex;
  align-items: center;
}

.c-list-item__date {
  font-size: 18px;
  color: #9b9b9b;
}

.c-list-item__ttl {
  font-size: 24px;
  line-height: 1.45;
  padding-left: 30px;
  margin-left: 30px;
  border-left: 1px solid #000;
}

.c-list-item__txt {
  padding-top: 13px;
  font-size: 16px;
  line-height: 1.875;
}

@media screen and (max-width: 768px) {
  .c-list-item {
    padding: 20px 0;
  }

  .c-list-item__top {
    flex-direction: column;
    align-items: flex-start;
  }

  .c-list-item__date {
    font-size: 12px;
  }

  .c-list-item__ttl {
    padding-top: 10px;
    font-size: 18px;
    padding-left: 0;
    margin-left: 0;
    border-left: none;
  }

  .c-list-item__txt {
    padding-top: 16px;
    font-size: 14px;
    line-height: 1.6;
  }
}

/* pagenation
--------------------------------------------*/
.pagenation-area {
  padding-top: 60px;
}

.pagenation-area ul {
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagenation-area ul li {
  margin: 0 18px;
  list-style: none;
}

.pagenation-area ul li:has(img) {
  margin: 0 13px;
}

.pagenation-area .pageNumber {
  /* width: 2.5rem;
  height: 2.5rem; */
  font-size: 24px;
  font-weight: 600;
  color: #39bfde;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  text-align: center;
  text-decoration: none;
}

.pagenation-area .pageNumber.curr {
  color: #000;
}

.pagenation-area .pagenation-area__arrow {
  display: block;
}

.pagenation-area .pagenation-area__arrow img {
  width: 100%;
  height: auto;
}

.pagenation-area .nextLink img {
  transform: rotate(-180deg);
}

@media (any-hover: hover) {
  .pagenation-area a:hover {
    opacity: 0.6;
    text-decoration: underline;
  }
}

@media screen and (max-width: 768px) {
  .pagenation-area {
    padding-top: 40px;
  }

  .pagenation-area .pageNumber {
    font-size: 18px;
  }

  .pagenation-area .pagenation-area__arrow {
    width: 12px;
    height: auto;
  }
}

/* article
--------------------------------------------*/
.l-article {
  padding-top: 95px;
}

.article-card {
  padding-top: 60px;
}

.article-card__wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

@media screen and (max-width: 768px) {
  .article-card__wrapper {
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
  }

  .l-article {
    padding-top: 120px;
  }
}