/* =========================================
  Common
========================================= */
html {
  font-family: "Zen Kaku Gothic New", "Noto Sans Japanese", "游ゴシック", YuGothic, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  font-size: 0.521vw;
  /* 1920px時に 1rem = 10px */
  scroll-padding: 18rem;
  scroll-behavior: smooth;
}

.library {
  padding-top: 10rem;
  font-family: "Noto Sans JP", sans-serif;
  color: #202020;
  line-height: normal;
}

.library * {
  box-sizing: border-box;
}

.library img {
  max-width: 100%;
  height: auto;
  display: block;
}

.library p.com_txt {
  font-size: 1.6em;
}

.library .com_flex {
  display: flex;
  justify-content: center;
}

.library .pc_only {
  display: block;
}

.library .sp_only {
  display: none;
}

@media screen and (max-width: 750px) {
  html {
    font-size: 2.666vw;
    scroll-padding: 12rem;
  }

  @supports (-webkit-touch-callout: none) {
    html {
      scroll-padding: 9rem;
    }
  }

  .library {
    padding-top: 9.7rem;
  }

  .library .com_flex {
    flex-direction: column;
  }

  .library .pc_only {
    display: none;
  }

  .library .sp_only {
    display: block;
  }
}


.library h2 {
  color: #00507E;
  text-align: center;
  font-family: Afacad;
  font-size: 10.8rem;
  font-style: normal;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.756rem;
  margin-bottom: 8rem;
}

.library h2 span {
  display: block;
  color: #202020;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 2.2rem;
  letter-spacing: 0.638rem;
}

@media screen and (max-width: 750px) {
  .library h2 {
    font-size: 4.2rem;
    letter-spacing: 0.294rem;
    text-transform: uppercase;
    margin-bottom: 4.8rem;
  }

  .library h2 span {
    font-size: 1.2rem;
    letter-spacing: 0.348rem;
    padding-top: .5rem;
  }
}


/* =========================================
  header
========================================= */
.library .header {
  background-color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  box-shadow: 0 4px 20px 0 rgba(228, 228, 228, 0.25);
}

.library .header_inner {
  display: flex;
  width: 95%;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 1.5rem 0;
}

.library .header_logo {
  width: 19.4rem;
}

.library .header_logo img {
  width: 100%;
  height: 100%;
}

.library .header_inner_left {
  align-items: center;
  gap: 7rem;
}

.library .header_inner_left .header_course {
  font-size: 2.6rem;
  letter-spacing: 0.26rem;
}

.library .header_inner_left .header_course span {
  display: block;
  font-size: 1.4rem;
  letter-spacing: 0.168rem;
}

.library .header_inner_right {
  font-size: 2rem;
  gap: 5.6rem;
  align-items: center;
}

.library .header_inner_right .header_link_wrap {
  align-items: center;
  gap: 5.6rem;
  letter-spacing: 0.2rem;
}

.library .header_inner_right .header_link_wrap a::before {
  content: "";
  display: inline-block;
  background-color: #25619C;
  width: 1.2rem;
  height: 1.2rem;
  margin-right: 1.6rem;
  border-radius: 50rem;
  transition: transform .3s;
  transform: scale(1);
}

.library .header_inner_right .header_link_wrap a:hover::before {
  transform: scale(1.4);
}

.library .header_inner_right .header_btn {
  position: relative;
  display: block;
  color: #fff;
  font-size: 2.2rem;
  letter-spacing: 0.44rem;
  font-weight: 600;
  background-color: #DE9D1D;
  border-radius: 0.4rem;
  padding: 2rem 6.7rem 2rem 4.5rem;
}

.library .header_inner_right .header_btn svg {
  position: absolute;
  top: 50%;
  right: 3rem;
  width: 1.5rem;
  transform: translateY(-50%) translateX(0);
  transition: transform .3s;
  margin-top: .15rem;
}

.library .header_inner_right .header_btn:hover svg {
  transform: translateY(-50%) translateX(1rem);
}

@media screen and (max-width: 750px) {
  .library .header_inner {
    width: 90%;
  }

  .library .header_logo {
    width: 12.6rem;
  }

  .header_inner.com_flex {
    flex-direction: row;
    padding: 1.3rem 0;
  }

  .library .header_inner_left {
    align-items: start;
    gap: .7rem;
  }

  .library .header_inner_left .header_course {
    font-size: 1.25rem;
  }

  .library .header_inner_left .header_course span {
    font-size: .67rem;
  }

  .library .header_inner_right {
    font-size: 1.1rem;
    flex-direction: column-reverse;
    gap: .9rem;
  }

  .library .header_inner_right .com_flex {
    flex-direction: row;
    gap: 2rem;
  }

  .library .header_inner_right .header_link_wrap a::before {
    width: .6rem;
    height: .6rem;
    gap: .85rem;
    margin-right: .8rem;
  }

  .library .header_inner_right .header_btn {
    font-size: 1.4rem;
    letter-spacing: .2rem;
    padding: 1.3rem 2.8rem 1.3rem 1.5rem;
    max-width: 10.8rem;
    max-height: 4.7rem;
  }

  .library .header_inner_right .header_btn svg {
    right: 1.25rem;
    width: 1.2rem;
  }

  .library .header_inner_right .header_btn:hover svg {
    transform: translateY(-50%) translateX(0);
  }
}



/* =========================================
  fv
========================================= */
.library .fv img {
  width: 100%;
}



/* =========================================
  anchor
========================================= */
.library .anchor {
  background-color: #F9F9F9;
  padding-top: 6rem;
}

.library .anchor .com_flex {
  gap: 2.8rem;
  align-items: center;
}

.library .anchor li {
  width: 35rem;
  transition: .3s;
}

.library .anchor li:hover {
  opacity: .8;
}

.library .anchor li img {
  width: 100%;
}

@media screen and (max-width: 750px) {
  .library .anchor {
    padding: 4.8rem 0 2rem;
  }

  .library .anchor .com_flex {
    gap: 1.6rem;
  }

  .library .anchor li {
    width: 30.5rem;
  }
}



/* =========================================
  overview
========================================= */
.library .overview {
  background-color: #F9F9F9;
  text-align: center;
  padding: 16rem 0;
  background-image: url("../image/overview_bg_img.png");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}


.library .overview h1 {
  font-size: 6.4rem;
  font-weight: 600;
  line-height: 10rem;
  letter-spacing: 1.92rem;
  margin-bottom: 7.7rem;
}

.library .overview p {
  font-size: 2rem;
  font-weight: 500;
  line-height: 5.1rem;
  letter-spacing: 0.62rem;
}

@media screen and (max-width: 750px) {
  .library .overview {
    padding: 5rem 0 8rem;
    background-size: 120%;
  }

  .library .overview h1 {
    font-size: 2.6rem;
    line-height: 3.4597rem;
    letter-spacing: 0.78rem;
    margin-bottom: 4rem;
  }

  .library .overview p {
    font-size: 1.3rem;
    line-height: 3.2rem;
    letter-spacing: 0.403rem;
  }
}



/* =========================================
  reasons
========================================= */
.library .reasons {
  background-color: #EEF0F0;
  padding: 13rem 0 22rem;
}

/* reasons_point*/
.library .reasons_point {
  position: relative;
  width: 145rem;
  margin: auto;
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.70);
  box-shadow: 0 0 27.188px 0 rgba(159, 159, 159, 0.35);
  padding: 7rem 0 7.5rem;
}

.library .reasons_point.point02,
.library .reasons_point.point03,
.library .reasons_point.point04 {
  padding-top: 6rem;
}

.library .reasons_point:not(:last-child) {
  margin-bottom: 8rem;
}

.reasons_point::before {
  content: "";
  display: block;
  background-size: contain;
  background-repeat: no-repeat;
  position: absolute;
}

.reasons_point.point01::before {
  background-image: url("../image/reasons_point01_ttl@2x.png");
  width: 19.3rem;
  height: 17.5rem;
  top: -3.5rem;
  left: 6.5rem;
}

.reasons_point.point02::before {
  background-image: url("../image/reasons_point02_ttl@2x.png");
  width: 24rem;
  height: 17.8rem;
  top: -4rem;
  right: 4rem;
}

.reasons_point.point03::before {
  background-image: url("../image/reasons_point03_ttl@2x.png");
  width: 23rem;
  height: 18rem;
  top: -3.8rem;
  left: 5rem;
}

.reasons_point.point04::before {
  background-image: url("../image/reasons_point04_ttl@2x.png");
  width: 25rem;
  height: 17.9rem;
  top: -3.5rem;
  right: 4rem;
}

.library .reasons_point>.com_flex {
  margin-bottom: 10rem;
  justify-content: end;
}

.library .point01.reasons_point>.com_flex {
  gap: 6rem;
}

.library .point02.reasons_point>.com_flex,
.library .point04.reasons_point>.com_flex {
  gap: 12rem;
}

.library .point03.reasons_point>.com_flex {
  gap: 8.6rem;
}

.library .reasons_point.point02 .com_flex:nth-child(1),
.library .reasons_point.point04 .com_flex:nth-child(1) {
  justify-content: start;
}

.library .reasons_point_ttl h3 {
  color: #00507E;
  font-size: 4.8rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.48rem;
  margin-top: 2.5rem;
  margin-bottom: 4rem;
}

.library .reasons_point_ttl h3 span {
  display: block;
  color: #8898A2;
  font-family: Afacad;
  font-size: 3.2rem;
  letter-spacing: 0.32rem;
  padding-bottom: 1.5rem;
  line-height: 1;
}

.library .reasons_point_ttl p {
  color: #1E1E1E;
  font-size: 1.7rem;
  line-height: 3.4rem;
  letter-spacing: 0.425rem;
  width: 59rem;
}

.library .point02 .reasons_point_ttl p,
.library .point03 .reasons_point_ttl p {
  width: 56rem;
}

.library .reasons_point_ttl p span {
  color: #DE9D1D;
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 3.4rem;
  letter-spacing: 0.425rem;
}

.library .reasons_point_ttl_img {
  width: 64.6rem;
}

.library .point02 .reasons_point_ttl_img02 {
  position: absolute;
  width: 46.6rem;
  right: 21.5rem;
  bottom: 2.5rem;
}

/* reasons_point_contents */
.library .reasons_point_contents {
  width: 114rem;
  margin: auto;
}

.library .reasons_point_contents img {
  width: 100%;
}

.library .point04 .reasons_point_contents {
  width: 84rem;
}

.library .reasons_point_contents h4 {
  text-align: center;
  color: #00507E;
  font-size: 2.8rem;
  font-weight: 600;
  line-height: 6rem;
  letter-spacing: 0.28rem;
  margin: 6rem auto 3.5rem;
}

.library .point04 .reasons_point_contents h4 {
  margin: 0 auto;
}

.library .reasons_point_contents .com_flex {
  gap: 4rem;
}

.library .point03 .reasons_point_contents .com_flex {
  gap: 2.2rem;
}

.library .reasons_point_contents .com_flex>div {
  width: 55rem;
}

.reasons_point_contents_txt_wrap {
  border-left: solid .3rem #00507E;
  margin-top: 2.7rem;
  margin-left: 1rem;
  padding-left: 3rem;
}

.library .reasons_point_contents_txt_wrap h5 {
  font-size: 2.1rem;
  font-weight: 600;
  line-height: 6rem;
  letter-spacing: 0.21rem;
}

.library .reasons_point_contents_txt_wrap p {
  font-size: 1.7rem;
  font-weight: 400;
  line-height: 2.8rem;
  letter-spacing: 0.425rem;
}

@media screen and (max-width: 750px) {
  .library .reasons {
    padding: 4rem 0 6.43rem;
  }

  /* reasons_point*/
  .library .reasons_point {
    padding: 4rem 0 5.2rem;
    width: 33.5em;
  }

  .library .reasons_point:not(:last-child) {
    margin-bottom: 5rem;
  }

  .library .reasons_point.point02,
  .library .reasons_point.point03,
  .library .reasons_point.point04 {
    padding-top: 3.6rem;
  }

  .reasons_point.point01::before {
    width: 7.5rem;
    height: 7rem;
    top: -1rem;
    left: 2rem;
  }

  .reasons_point.point02::before {
    width: 9.5rem;
    height: 7rem;
    top: -1.5rem;
    right: 1.58rem;
  }

  .reasons_point.point03::before {
    width: 9.2rem;
    height: 7rem;
    top: -1.5rem;
    left: 2rem;
  }

  .reasons_point.point04::before {
    width: 10rem;
    height: 7rem;
    top: -1.5rem;
    right: 1rem;
  }

  .library .reasons_point>.com_flex {
    gap: 3.2rem;
    margin-bottom: 6rem;
  }

  .library .point03.reasons_point>.com_flex {
    gap: 5rem;
  }

  .library .reasons_point.point02 .com_flex:nth-child(1) {
    gap: 12rem;
    flex-direction: column-reverse;
    margin-bottom: 0;
  }

  .library .reasons_point.point04 .com_flex:nth-child(1) {
    gap: 4rem;
    flex-direction: column-reverse;
    margin-bottom: 5rem;
  }

  .library .point02 .reasons_point_ttl_img02 {
    left: 3rem;
    bottom: 27.6rem;
    width: 18rem;
  }

  .library .reasons_point_ttl,
  .library .point02 .reasons_point_ttl {
    padding: 0 2.7rem;
  }

  .library .reasons_point_ttl h3 {
    font-size: 2rem;
    letter-spacing: 0.2rem;
    margin-top: 0;
    margin-bottom: 1.6rem;
  }

  .library .point03 .reasons_point_ttl h3 {
    margin-top: 0;
  }

  .library .reasons_point.point01 .com_flex:nth-child(1) .reasons_point_ttl h3:nth-child(1) {
    margin-left: .6rem;
  }

  .library .reasons_point_ttl h3 span {
    font-size: 1.6rem;
    letter-spacing: 0.16rem;
    padding-bottom: .8rem;
  }

  .library .reasons_point_ttl p {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    width: 100%;
  }

  .library .point02 .reasons_point_ttl p,
  .library .point03 .reasons_point_ttl p {
    width: 100%;
  }

  .library .reasons_point_ttl p span {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
  }

  .library .reasons_point_ttl_img {
    width: 30rem;
    position: relative;
    margin-left: auto;
  }

  .library .point02 .reasons_point_ttl_img,
  .library .point04 .reasons_point_ttl_img {
    margin-left: initial;
  }

  /* reasons_point_contents */
  .library .reasons_point_contents {
    width: 28rem;
  }

  .library .point04 .reasons_point_contents {
    width: 31rem;
  }

  .library .reasons_point_contents h4 {
    font-size: 1.7rem;
    line-height: 2.3438rem;
    letter-spacing: 0.17rem;
    margin: 5rem auto 2.5rem;
  }

  .library .reasons_point_contents .com_flex {
    gap: 3.4rem;
  }

  .library .point01.reasons_point>.com_flex {
    gap: 4rem;
  }

  .library .reasons_point_contents .com_flex>div {
    width: 28rem;
  }

  .library .point03 .reasons_point_contents .com_flex {
    gap: 2.5rem;
  }

  .reasons_point_contents_txt_wrap {
    margin-top: 1.2rem;
    padding-left: 1.6rem;
  }

  .library .reasons_point_contents_txt_wrap h5 {
    font-size: 1.4rem;
    line-height: 2.8rem;
    letter-spacing: 0.14rem;
    padding-bottom: .5rem;
  }

  .library .reasons_point_contents_txt_wrap p {
    font-size: 1.3rem;
    line-height: 2.2rem;
    letter-spacing: 0.325rem;
  }
}



/* =========================================
  campaign
========================================= */
.library .campaign {
  background-color: #00507E;
  padding: 5.95rem 0 5.5rem;
}

.library .campaign img {
  width: 76rem;
  margin: auto;
}

.library .campaign_detail {
  color: white;
  border-radius: 8px;
  max-width: 104.5rem;
  margin: 3rem auto 0;
}

.library .campaign_box {
  display: flex;
  gap: 5.4rem;
  margin-bottom: 0;
}

.library .campaign_title {
  width: 16rem;
  font-size: 1.8rem;
  line-height: 2.7rem;
  letter-spacing: 0.09rem;
  font-weight: 700;
}

.library .campaign_content {
  font-size: 1.6rem;
  line-height: 2.7rem;
  letter-spacing: 0.08rem;
}

.library .note {
  font-size: 13px;
  margin-top: .3rem;
  line-height: 2.1rem;
}

.library .divider {
  background: rgba(255, 255, 255, 0.40);
  height: 1px;
  margin: 1.6rem 0;
}

.library .campaign_detail ul {
  list-style: none;
  padding-left: 0;
  margin-top: 2.4rem;
}

.library .campaign_detail li {
  font-size: 1.4rem;
  line-height: 2.4rem;
  letter-spacing: 0.252rem;
  margin-bottom: 8px;
  padding-left: 1em;
  position: relative;
}

.library .campaign_detail li:before {
  content: "•";
  position: absolute;
  left: 0;
}

.library .campaign_detail a {
  color: white;
  text-decoration: underline;
}

.library .campaign_detail a:hover {
  opacity: 0.8;
}

@media screen and (max-width: 750px) {
  .library .campaign {
    padding: 4.8rem 0;
  }

  .library .campaign img {
    width: 33.5rem;
  }

  .library .campaign_detail {
    width: 33.6rem;
    margin: 5.3rem auto 0;
  }

  .library .campaign_box {
    flex-direction: column;
    gap: 1.6rem;
  }

  .library .campaign_title {
    font-size: 1.6rem;
    line-height: 0.8681rem;
    letter-spacing: 0.08rem;
  }

  .library .campaign_content {
    font-size: 1.3rem;
    line-height: 1.9rem;
    letter-spacing: 0.065rem;
  }

  .library .note {
    font-size: 1rem;
    line-height: 1.1rem;
    letter-spacing: 0.05rem;
  }

  .library .divider {
    margin: 2.4rem 0;
  }

  .library .campaign_detail li {
    font-size: 1rem;
    line-height: 1.6101rem;
    letter-spacing: 0.1rem;
  }
}


/* =========================================
  course
========================================= */
.library .bg_color {
  background-color: #E5E8EF;
}

.library .course {
  background-image: url("../image/course_bg_pc@2x.png.jpg");
  background-size: 100%, 100%;
  background-position: top, top;
  background-repeat: no-repeat;
  padding: 16rem 0 0;
}

.library .course_top {
  color: #fff;
  gap: 21rem;
  align-items: center;
}

.library .course_top h2,
.library .course_top h2 span {
  color: #fff;
}

.library .course_top h2 span {
  text-align: left;
  padding-top: .3rem;
}

.library .course_top h3 {
  font-size: 3.6rem;
  font-weight: 600;
  line-height: 5.1rem;
  letter-spacing: 0.72rem;
  margin-bottom: 3rem;
}

.library .course_top p {
  font-size: 1.7rem;
  font-weight: 500;
  line-height: 3.6rem;
  letter-spacing: 0.306rem;
  width: 68.6rem;
}

@media screen and (max-width: 750px) {
  .library .course {
    background-image: url("../image/course_bg_sp@2x.png.jpg");
    padding: 4.5rem 0 0;
  }

  .library .course_top {
    flex-direction: column;
    align-items: start;
    gap: 3.3rem;
    width: 31rem;
    margin: auto;
  }

  .library .course_top h2 {
    margin-bottom: 0;
  }

  .library .course_top h2 span {
    font-size: 1.2rem;
    letter-spacing: 0.348rem;
    padding-top: .5rem;
  }

  .library .course_top h3 {
    font-size: 2rem;
    line-height: 3.2rem;
    letter-spacing: 0.2rem;
    padding-left: 1rem;
  }

  .library .course_top p {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    width: 100%;
    padding-left: 1rem;
  }
}

/* librarian */
.library .librarian {
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.50);
  backdrop-filter: blur(1.5rem);
  width: 145rem;
  margin: 13rem auto 13.5rem;
  padding: 7.6rem 22rem 6.8rem;
}

.library .librarian h4 {
  color: #00507E;
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: 0.87rem;
  text-align: center;
  margin-bottom: 4.7rem;
}

.library .librarian h4 span {
  display: block;
  color: #8898A2;
  font-family: Afacad;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.36rem;
  padding-top: 1rem;
}

.library .librarian p {
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 4.3rem;
  letter-spacing: 0.324rem;
  text-align: center;
}

.library .librarian_field {
  margin-top: 9.5rem;
}

.library .librarian_field img {
  margin: auto;
  width: 103.8rem;
}

@media screen and (max-width: 750px) {
  .library .librarian {
    width: 33.5rem;
    margin: 4.8rem auto;
    padding: 4rem 2.8rem;
  }

  .library .librarian h4 {
    font-size: 1.7rem;
    line-height: 2.2rem;
    letter-spacing: 0.34rem;
    margin-bottom: 2.5rem;
  }

  .library .librarian h4 span {
    font-size: 1.2rem;
    line-height: 1.8rem;
    letter-spacing: 0.216rem;
    padding-top: .5rem;
  }

  .library .librarian p {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    text-align: left;
  }

  .library .librarian_field {
    margin-top: 4.8rem;
  }

  .library .librarian_field img {
    margin: auto;
    width: 23.6rem;
  }
}


/* students */
.library .students {
  background-color: #fff;
  border-top: solid .2rem #00507E;
  border-bottom: solid .2rem #00507E;
  width: 130rem;
  margin: auto;
}

.library .students .students_header {
  position: relative;
  color: #00507E;
  font-size: 3.7674rem;
  font-weight: 600;
  letter-spacing: 1.0926rem;
  text-align: center;
  cursor: pointer;
  padding: 3rem 10rem 4rem;
}

.library .students .accordion_icon {
  position: absolute;
  top: 50%;
  right: 2.17rem;
  transform: translateY(-50%);
  width: 4.6rem;
  height: 4.6rem;
  background-color: #00507E;
  border: .2rem solid #fff;
  border-radius: 50%;
}

.library .students .accordion_icon::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.5rem;
  height: .2rem;
  background: #fff;
  transform: translate(-50%, -50%);
}

.library .students .accordion_icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: .2rem;
  height: 1.5rem;
  background: #fff;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease;
}

.library .students.is-open .accordion_icon {
  background-color: #fff;
  border: .2rem solid #0b5ea8;
}

.library .students.is-open .accordion_icon::before {
  border: .2rem solid #0b5ea8;
}

.library .students.is-open .accordion_icon::after {
  opacity: 0;
}

.library .students .students_contents {
  overflow: hidden;
  max-height: 0;
}

.library .students.is-open .students_contents {
  max-height: 100%;
}

.library .students .students_contents img {
  width: 100%;
  margin: 3.6rem auto 8.3rem;
  padding: 0 8rem;
}

.library .students .students_contents p {
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 6rem;
  letter-spacing: 0.24rem;
  margin: auto;
  width: fit-content;
  padding-bottom: 4.3rem;
}

.library .students .students_contents p span {
  display: block;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 4.1217rem;
  letter-spacing: 0.14rem;
  text-align: right;
}

@media screen and (max-width: 750px) {
  .library .students {
    width: 30.5rem;
  }

  .library .students .students_header {
    font-size: 1.7rem;
    letter-spacing: 0.34rem;
    padding: 1.8rem 1.2rem;
  }

  .library .students .accordion_icon {
    width: 2.7rem;
    height: 2.7rem;
  }

  .library .students .accordion_icon::before {
    width: .9rem;
    height: .1rem;
  }

  .library .students .accordion_icon::after {
    width: .1rem;
    height: .9rem;
  }

  .library .students .students_contents img {
    margin: 1.7rem auto 2.6rem;
    padding: 0 1.2rem;
  }

  .library .students .students_contents p {
    text-align: center;
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.13rem;
    padding-bottom: 3.2rem;
  }

  .library .students .students_contents p span {
    font-size: 1rem;
    line-height: 1.6101rem;
    letter-spacing: 0.1rem;
  }
}



/* =========================================
  flow
========================================= */
.library .flow {
  padding: 14rem 0 13.6rem;
  position: relative;
}

.library .flow h2 {
  margin-bottom: 7rem;
}

.library .flow .flow_video {
  position: relative;
  display: block;
  width: 80rem;
  margin: auto;
  z-index: 5;
}

.library .flow .flow_video img {
  width: 100%;
}

.library .flow .header_btn {
  position: relative;
  display: block;
  color: #fff;
  font-size: 2.94rem;
  letter-spacing: 0.44rem;
  font-weight: 600;
  background-color: #DE9D1D;
  border-radius: 0.4rem;
  margin: 7rem auto 0;
  padding: 2rem 4.5rem 2rem;
  width: 54rem;
  text-align: center;
}

.library .flow .header_btn svg {
  position: absolute;
  top: 50%;
  right: 3rem;
  width: 1.8rem;
  transform: translateY(-50%) translateX(0);
  transition: transform .3s;
  margin-top: .15rem;
}

.library .flow .header_btn:hover svg {
  transform: translateY(-50%) translateX(1rem);
}

.library .flow .item_wrap img {
  position: absolute;
  width: 17.8rem;
}

.library .flow .item_wrap .imte01 {
  top: 2rem;
  right: 16.5rem;
}

.library .flow .item_wrap .imte02 {
  top: 42rem;
  left: 11rem;
}

.library .flow .item_wrap .imte03 {
  top: 88rem;
  right: 17.5rem;
}


@media screen and (max-width: 750px) {
  .library .flow {
    padding: 4.8rem 0;
  }

  .library .flow .flow_video {
    width: 100%;
  }

  .library .flow h2 {
    margin-bottom: 3rem;
  }

  .library .flow .header_btn {
    font-size: 1.5rem;
    letter-spacing: 0.15rem;
    width: 26.3rem;
    padding: 1.4rem 4rem 1.4rem 3.8rem;
    margin-top: 3rem;
  }

  .library .flow .header_btn svg {
    right: 1.5rem;
    width: 1.3rem;
  }


  .library .flow .item_wrap img {
    width: 7rem;
  }

  .library .flow .item_wrap .imte01 {
    top: 1rem;
    right: 0;
  }

  .library .flow .item_wrap .imte02 {
    top: 7.5rem;
    left: 0;
  }

  .library .flow .item_wrap .imte03 {
    top: 29rem;
    right: 0;
  }
}



/* =========================================
  learning_style
========================================= */
.library .learning_style {
  border-radius: 1.6rem;
  background: linear-gradient(180deg, #0E5A85 0%, #B4E4E8 100%);
  box-shadow: 0 4px 28px 0 rgba(0, 0, 0, 0.11);
  padding: 10rem 14rem;
  width: 145rem;
  margin: auto;
}

.library .learning_style h2,
.library .learning_style h2 span {
  color: #fff;
}

.library .learning_style h2 span {
  padding-top: 1rem;
}

.library .learning_style .learning_style_inner {
  border-radius: 0.72rem;
  background: #E2EEF2;
  padding: 4.4rem 5rem 2.8rem;
}

.library .learning_style .com_flex {
  gap: 3.5rem;
  font-weight: 600;
}

.library .learning_style .left_item img {
  width: 53.4rem;
}

.library .learning_style .left_item .name {
  font-size: 3.115rem;
  line-height: 4.1389rem;
  letter-spacing: 0.1869rem;
  margin-top: 2rem;
}

.library .learning_style .left_item .name span {
  font-size: 1.7rem;
  line-height: 4rem;
  letter-spacing: 0.1rem;
}

.library .learning_style .left_item .graduation {
  font-size: 2.301rem;
  line-height: 3.0574rem;
  letter-spacing: 0.1381rem;
}

.library .learning_style .left_item .graduation span {
  font-size: 1.812rem;
  line-height: 3.072rem;
  letter-spacing: 0.1087rem;
  padding-left: 1rem;
}


.library .learning_style .right_item p {
  font-size: 1.7rem;
  font-weight: 400;
  line-height: 2.8rem;
  letter-spacing: 0.187rem;
  width: 49rem;
  margin-bottom: 3.7rem;
}

.library .learning_style .right_item img {
  width: 49rem;
}

@media screen and (max-width: 768px) {
  .library .learning_style {
    border-radius: 0.6rem;
    background: linear-gradient(180deg, #0E5A85 0%, #B4E4E8 100%);
    box-shadow: 0 0.781px 5.469px 0 rgba(0, 0, 0, 0.11);
    padding: 3.2rem 1.5rem 1.5rem;
    width: 33.5rem;
  }

  .library .learning_style h2 {
    line-height: 3.3rem;
    margin-bottom: 2.7rem;
  }

  .library .learning_style h2 span {
    line-height: 1;
  }

  .library .learning_style .learning_style_inner {
    border-radius: 0.6rem;
    padding: 2rem 2.7rem 2.4rem;
  }

  .library .learning_style .com_flex {
    gap: 1.8rem;
  }

  .library .learning_style .left_item img {
    width: 25rem;
  }

  .library .learning_style .left_item .name {
    font-size: 1.5rem;
    line-height: 2.0136rem;
    letter-spacing: 0.09rem;
  }

  .library .learning_style .left_item .name span {
    font-size: 0.9rem;
    line-height: 2.0136rem;
    letter-spacing: 0.054rem;
  }

  .library .learning_style .left_item .graduation {
    font-size: 1.1rem;
    line-height: 1.4874rem;
    letter-spacing: 0.066rem;
  }

  .library .learning_style .left_item .graduation span {
    font-size: 0.9rem;
    line-height: 1.4945rem;
    letter-spacing: 0.054rem;
  }

  .library .learning_style .right_item p {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.221rem;
    width: 25rem;
    margin-bottom: 1.6rem;
  }

  .library .learning_style .right_item img {
    width: 25.1rem;
  }
}

/* =========================================
  support
========================================= */
.library .support {
  padding-top: 13.6rem;
  padding-bottom: 30rem;
}

.library .support h2 {
  margin-bottom: 7rem;
}

.library .support h2 span {
  display: block;
  color: #202020;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 2.2rem;
  letter-spacing: 0.638rem;
}

.library .support_group {
  display: grid;
  padding: 0;
  margin: 0 auto;
  justify-content: center;
  gap: 2rem;
}

.library .support_group {
  padding-top: 7.2rem;
  grid-template-columns: repeat(2, 70.7rem);
}

.library .support_group li {
  width: 70.7rem;
  background: #fff;
  background: rgba(255, 255, 255, 0.50);
  border-radius: 0.8rem;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.library .support_txt {
  height: 100%;
}

.library .support_txt h3 {
  color: var(--main, #00507E);
  font-family: "Noto Sans JP";
  font-size: 3rem;
  font-style: normal;
  font-weight: 600;
  line-height: normal;
  letter-spacing: 0.87rem;
}

.library .support_txt p {
  color: #000;
  font-size: 1.7rem;
  line-height: 2.8rem;
  letter-spacing: 0.425rem;
  width: 41rem;
}

.library .support_content_01 {
  padding: 4.8rem 7rem 4rem 6rem;
  gap: 5rem;
}

.library .support_content_02 {
  padding: 4.8rem 5.2rem 5.4rem 7.5rem;
  gap: 6.5rem;
}

.library .support_content_03 {
  padding: 4.8rem 5.2rem 6.8rem 5rem;
  gap: 4.8rem;
}

.library .support_content_04 {
  padding: 4.8rem 5.2rem 5.4rem 5.7rem;
  gap: 5rem;
}

.library .support_content_01 .support_txt h3,
.library .support_content_03 .support_txt h3 {
  padding-bottom: 3rem;
}

.library .support_content_02 .support_txt h3,
.library .support_content_04 .support_txt h3 {
  padding-bottom: 1.7rem;
}

.library .support_content_01 img {
  width: 11.6384rem;
  height: 16.4252rem;
}

.library .support_content_02 img {
  width: 10.4831rem;
  height: 9.1179rem;
}

.library .support_content_03 img {
  width: 14.1327rem;
  height: 12.6619rem;
}

.library .support_content_04 img {
  width: 13.9025rem;
  height: 8.9402rem;
}

.library .support_txt h3 {
  color: #00507E;
  font-family: "Noto Sans JP";
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: 0.87rem;
}

@media screen and (max-width: 768px) {
  .library .support {
    padding-top: 6rem;
    padding-bottom: 15rem;
  }

  .library .support h2 {
    font-size: 4.2rem;
    letter-spacing: 0.294rem;
    margin-bottom: 0;
  }

  .library .support h2 span {
    font-size: 1.2rem;
    letter-spacing: 0.348rem;
  }

  .library .support_group {
    grid-template-columns: 1fr;
    gap: 1.6rem;
    padding-top: 3.2rem;
  }

  .library .support_group li {
    width: 33.5rem;
    margin: 0 auto;
    flex-direction: column;
    gap: 3rem;
    border-radius: 0.6rem;
  }

  .library .support_content_01 {
    padding: 3.2rem 2.8rem 2.8rem;
  }

  .library .support_content_02 {
    padding: 3.2rem 2.8rem 3.28rem;
  }

  .library .support_content_03 {
    padding: 3.2rem 2.8rem;
  }

  .library .support_content_04 {
    padding: 3.2rem 2.8rem;
  }

  .library .support_content_01 img {
    width: 6.6999rem;
    height: 9.4556rem;
  }

  .library .support_content_02 img {
    width: 6.5771rem;
    height: 5.7209rem;
  }

  .library .support_content_03 img {
    width: 8.6242rem;
    height: 7.7269rem;
  }

  .library .support_content_04 img {
    width: 8.3135rem;
    height: 5.3462rem;
  }

  .library .support_txt h3 {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 0.464rem;
  }

  .library .support_content_01 .support_txt h3,
  .library .support_content_03 .support_txt h3,
  .library .support_content_02 .support_txt h3,
  .library .support_content_04 .support_txt h3 {
    padding-bottom: 2rem;
  }

  .library .support_txt p {
    color: #202020;
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    width: 27.8rem;
  }
}



/* =========================================
  interview
========================================= */
.library .interview {
  background-image: url("../image/interview_bg.png");
  background-size: 100% auto;
  background-repeat: no-repeat;
  padding-top: 30rem;
  margin-top: -42rem;
}

.library .interview p {
  color: #000;
  text-align: center;
  font-family: "Noto Sans JP";
  font-size: 1.8rem;
  font-style: normal;
  font-weight: 400;
  line-height: 3.6rem;
  letter-spacing: 0.324rem;
  margin: 7.2rem 0;
}

.library .interview_group {
  display: flex;
  justify-content: center;
  gap: 3.2rem;
  padding-bottom: 44rem;
}

.library .interview_content {
  box-shadow: 0 4px 28px 0 rgba(0, 0, 0, 0.11);
  border-radius: 1.6rem;
  width: 41.2rem;
  flex-shrink: 0;
}

.library .interview_content img {
  border-radius: 1.6rem;
  width: 100%;
  display: block;
}

@media screen and (max-width: 768px) {
  .library .interview {
    padding-top: 9rem;
    margin-top: -18.5rem;
  }

  .library .interview h2 {
    font-size: 4.2rem;
    letter-spacing: 0.294rem;
    margin-bottom: 3rem;
  }

  .library .interview h2 span {
    font-size: 1.2rem;
    letter-spacing: 0.348rem;
  }

  .library .interview p {
    text-align: left;
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    margin: 3.2rem 3.5rem 4.2rem 3.7rem;
  }

  .library .interview_group {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 5.6rem;
    gap: 1.6rem;
    /* scroll-snap-type: x mandatory; */
  }

  /* Chrome, Safariでスクロールバーを非表示にする*/
  .library .interview_group::-webkit-scrollbar {
    display: none;
  }

  .library .interview_content {
    width: 26.3rem;
  }

  .library .interview_content:nth-child(1) {
    margin-left: 2rem;
  }

  .library .interview_content:nth-child(3) {
    margin-right: 2rem;
  }
}

/* =========================================
  case_study
========================================= */
.library .case_study {
  margin-top: -22rem;
}

.library .case_study h2 {
  text-transform: uppercase;
  margin: 0 0 5rem 30.9rem;
  text-align: initial;
}

.library .case_study h2 span {
  display: block;
  color: #202020;
  font-family: "Noto Sans JP";
  font-size: 2.2rem;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.638rem;
}

.library .case_container {
  background-image: url("../image/case_study_bg.png");
  background-size: 100% auto;
  background-repeat: no-repeat;
  margin-top: -15rem;
  padding-bottom: 18rem;
}

.library .case_lead {
  color: #FFF;
  font-family: "Noto Sans JP";
  font-size: 1.8rem;
  font-style: normal;
  font-weight: 400;
  line-height: 3.6rem;
  letter-spacing: 0.324rem;
  padding: 28rem 0 6.2rem 43rem;
}

.library .case_group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7rem;
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
  max-width: 106.7rem;
  margin: 0 auto;
}

.library .case_item {
  position: relative;
  cursor: pointer;
  line-height: 0;
  transition: transform 0.3s ease;
}

.library .case_item:hover {
  transform: translateY(-5px);
}

.library .case_img {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 2rem;
}

.library .case_open_btn {
  position: absolute;
  bottom: -1rem;
  right: 0rem;
  width: 10.2rem;
  height: 10.2rem;
  z-index: 1;
}

/* --- モーダル（ポップアップ） --- */
.library .modal_overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.library .modal_overlay.is-open {
  display: flex;
}

.modal_wrapper {
  position: relative;
}

.library .modal_container {
  max-width: 123rem;
  border-radius: .8rem;
  max-height: 85vh;
  overflow-y: auto;
  background-color: #fff;
  box-shadow: 0 4px 28px 0 rgba(0, 0, 0, 0.11);
}

.library .modal_group {
  background: white;
  width: 100%;
  position: relative;
  z-index: 2;
  padding: 0 16rem;
}

.library .modal_container img {
  width: 100%;
}

.library .close_modal_top {
  position: absolute;
  top: -3.5rem;
  right: -3.5rem;
  width: 10rem;
  height: 10rem;
  border: none;
  background: none;
  padding: 0;
  z-index: 10;
  filter: drop-shadow(0 6.996px 30px rgba(0, 0, 0, 0.30));
  cursor: pointer;
}

.library .modal_content .faq_question {
  background: #fff;
  padding: 3rem 11rem 3rem 3rem;
  border-radius: 0.8rem;
  box-shadow: 0 4px 28px 0 rgba(0, 0, 0, 0.11);
  display: flex;
  align-items: center;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.library .question_txt_small {
  color: #202020;
  font-family: "Noto Sans JP";
  font-size: 1.6rem;
  font-style: normal;
  font-weight: 700;
  line-height: 2.8rem;
  letter-spacing: 0.288rem;
}

.library .modal_content .answer_content {
  padding: 4rem 11rem 3rem 3rem;
  display: flex;
  align-items: flex-start;
  min-height: 10rem;
}

.library .modal_content_bottom {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin: 0 auto;
  justify-content: center;
  padding: 6rem;
  cursor: pointer;
  width: fit-content;
}

.library .modal_content_bottom img {
  width: 2rem;
}

.library .modal_content_bottom p {
  color: #202020;
  font-family: Afacad;
  font-size: 2rem;
  font-style: normal;
  font-weight: 500;
  line-height: normal;
  letter-spacing: 0.2rem;
}

@media (max-width: 768px) {
  .library .case_study {
    margin-top: 0;
  }

  .library .case_study h2 {
    font-size: 4.2rem;
    line-height: 4rem;
    letter-spacing: 0.348rem;
    margin: 0 0 0 2rem;
  }

  .library .case_study h2 span {
    font-size: 1.2rem;
    letter-spacing: 0.348rem;
    line-height: 1rem;
  }

  .library .case_container {
    background-image: url("../image/case_study_bg_sp@2x.jpg");
    background-size: 100% auto;
    background-repeat: no-repeat;
    margin-top: -7.5rem;
    padding-bottom: 7rem;
  }

  .library .case_lead {
    font-size: 1.3rem;
    line-height: 2.4rem;
    letter-spacing: 0.325rem;
    padding: 13rem 4rem 4rem 4rem;
  }

  .library .case_group {
    gap: 1rem;
    width: 100%;
    max-width: 30.5rem;
  }

  .library .modal_group {
    padding: 0;
  }

  .library .modal_container {
    max-width: 35rem;
  }

  .library .modal_content {
    padding: 2rem;
  }

  .library .modal_overlay {
    padding: 1.3rem;
  }

  .library .close_modal_top {
    top: -1rem;
    right: -0.5rem;
    width: 4rem;
    height: 4rem;
  }

  .library .modal_content .faq_question {
    padding: 2.4rem 4rem 2.4rem 1.5rem;
    box-shadow: 0 1.154px 8.077px 0 rgba(0, 0, 0, 0.11);
    border-radius: 0.6rem;
  }

  .library .question_txt_small {
    font-size: 1.2rem;
    line-height: initial;
  }

  .library .modal_content .faq_container {
    margin: 0;
  }

  .library .modal_content_bottom {
    padding: 2.7rem
  }

  .library .modal_content_bottom p {
    font-size: 1.8rem;
    letter-spacing: 0.18rem;
  }
}



/* =========================================
  faq
========================================= */
.library .faq {
  padding-top: 18rem;
}

.library .faq h2 {
  font-size: 3.6rem;
}

.library .faq_container {
  max-width: 130rem;
  margin: 4rem auto 0;
}

.library .faq_item {
  margin-bottom: 3.2rem;
}

.library .faq .faq_question {
  background: #fff;
  padding: 3rem 4rem 3rem 6rem;
  border-radius: 0.8rem;
  box-shadow: 0 4px 28px 0 rgba(0, 0, 0, 0.11);
  display: flex;
  align-items: center;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.library .faq_number {
  flex-shrink: 0;
  color: #00507E;
  font-family: Montserrat;
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: 0.32rem;
}

.library .faq_char {
  color: #00507E;
  font-family: Montserrat;
  font-size: 4.2rem;
  font-weight: 700;
  letter-spacing: 0.42rem;
}

.library .question_text {
  color: #202020;
  font-family: "Noto Sans JP";
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 3.4rem;
  letter-spacing: 0.396rem;
  flex-grow: 1;
  margin-left: 4rem;
}

.library .faq_question::after {
  content: "";
  position: absolute;
  right: 3.2rem;
  width: 2.4rem;
  height: 2.4rem;
  background-image: url("../image/faq_open.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.library .faq_question.open::after {
  background-image: url("../image/faq_close.png");
  background-size: contain;
  height: .4rem;
  top: 50%;
  transform: translateY(-50%);
}

.library .faq_answer {
  max-height: 0;
  overflow: hidden;
  background-color: #E4F1F6;
  border-radius: 0 0 0.8rem 0.8rem;
  margin-top: -.8rem;
}

.library .answer_content {
  padding: 3rem 4rem 3rem 6rem;
  display: flex;
  align-items: start;
  min-height: 10rem;
}

.library .answer_content .faq_number {
  line-height: 1;
  opacity: .3;
}

.library .answer_content .faq_number,
.library .answer_content .faq_char {
  color: #6F8393;
}

.library .answer_text {
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 2.8rem;
  letter-spacing: 0.324rem;
  margin-left: 4rem;
  margin-top: 1rem;
}

@media screen and (max-width: 750px) {
  .library .faq {
    padding-top: 5.6rem;
  }

  .library .faq h2 {
    font-size: 2rem;
  }

  .library .faq_title {
    font-size: 2em;
  }

  .library .faq_container {
    max-width: 33.5rem;
    margin: 4rem 2rem 0;
  }

  .library .faq_item {
    margin-bottom: 2.2rem;
  }

  .library .faq_number {
    font-size: 1.6rem;
    letter-spacing: 0.16rem;
  }

  .library .faq_char {
    font-size: 1.9rem;
    letter-spacing: 0.19rem;
  }

  .library .faq .faq_question {
    padding: 2.3rem 5rem 2.3rem 1.5rem;
    border-radius: 0.6rem;
    box-shadow: 0 1.154px 8.077px 0 rgba(0, 0, 0, 0.11);
  }

  .library .question_text {
    font-size: 1.4rem;
    line-height: 1.7rem;
    letter-spacing: 0.252rem;
    flex-grow: 1;
    margin-left: 2rem;
  }

  .library .faq_question::after {
    width: 1.2rem;
    height: 1.2rem;
    right: 2.2rem;
  }

  .library .answer_content,
  .library .modal_content .answer_content {
    padding: 2.3rem 4rem 2.3rem 1.5rem;
  }

  .library .answer_text {
    font-size: 1.3rem;
    line-height: 2.09rem;
    letter-spacing: 0.234rem;
    margin-left: 2rem;
    margin-top: 0;
  }
}


/* =========================================
cta
========================================= */
.library .cta_wrap {
  padding: 12rem 0;
}

.library .cta_wrap.last {
  padding: 11rem 0;
}

.library .cta_wrap01 {
  background-color: #EEF0F0;
}

.library .cta_wrap .cta_title {
  color: #DE9D1D;
  text-align: center;
  font-family: "Noto Sans JP";
  font-size: 4.8944rem;
  font-weight: 800;
  line-height: 4.5rem;
  letter-spacing: 0.3426rem;
  margin-bottom: 1.6rem;
}

.library .cta_wrap .cta_sub {
  color: #1E1E1E;
  text-align: center;
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 4.5rem;
}

.library .cta_wrap .cta_btn {
  display: block;
  width: 118.1rem;
  margin: 0 auto;
  padding-top: 2rem;
}

@media screen and (max-width: 750px) {
  .library .cta_wrap {
    padding: 6.4rem 0;
  }

  .library .cta_wrap.last {
    padding: 4rem 0 6.4rem;
  }

  .library .cta_wrap .cta_title {
    font-size: 2.3rem;
    line-height: 2.5rem;
    letter-spacing: 0.161rem;
    margin-bottom: .5rem;
  }

  .library .cta_wrap .cta_sub {
    font-size: 1.4rem;
    line-height: 2.5rem;
  }

  .library .cta_wrap .cta_btn {
    width: 33.5rem;
    padding-top: 1.2rem;
  }
}


/* =========================================
fixed_btn
========================================= */
.library .fixed_btn {
  position: fixed;
  z-index: 10;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity .4s ease, transform .4s ease;
}

/* image */
.library .fixed_btn_img {
  position: relative;
  width: 20.1rem;
  margin: -1.3rem auto 0;
}

.library .fixed_btn_item {
  position: absolute;
  width: 4.35rem;
  top: -1rem;
  right: -1rem;
}

/* multiply-bg */
.library .multiply-bg {
  position: fixed;
  border-radius: 1rem;
  background-color: #25619C;
  box-shadow: 7px 7px 13px 0 rgba(0, 0, 0, 0.21);
  mix-blend-mode: multiply;
  z-index: 9;

  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity .4s ease, transform .4s ease;
}

.library .fixed_btn,
.library .multiply-bg {
  width: 24.7rem;
  height: 11.8rem;
  right: 3rem;
  bottom: 3rem;
}

/* 表示非表示 */
.fixed_btn.is-show,
.multiply-bg.is-show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.fixed_btn.is-hide,
.multiply-bg.is-hide {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

@media screen and (max-width: 750px) {
  .library .fixed_btn {
    width: 9.4rem;
    right: 0;
  }

  .library .fixed_btn_img {
    width: 6.2rem;
    margin: 0 auto;
    top: 2rem;
  }

  .library .fixed_btn_item {
    width: 3rem;
    top: -.5rem;
    right: -.8rem;
  }

  .library .multiply-bg {
    border-radius: .5rem;
  }

  .library .fixed_btn,
  .library .multiply-bg {
    right: 1.5rem;
    bottom: 1rem;
    width: 10.7rem;
    height: 5.7rem;
  }
}


/* =========================================
  copyright
========================================= */
.library .copyright {
  color: #000;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.13rem;
  text-align: center;
  padding-bottom: 2.2rem;
}

@media screen and (max-width: 750px) {
  .library .copyright {
    font-size: 0.9rem;
    letter-spacing: 0.09rem;
  }
}