@charset "UTF-8";
body {
  font-family: YuGothic, "Yu Gothic", sans-serif;
  color: #0F1A45;
  font-weight: bold;
}

header#masthead {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 35px 0;
  z-index: 999;
  background-color: transparent;
  color: #fff;
  transition: background-color 0.25s ease, color 0.25s ease;
}
@media (max-width: 870px) {
  header#masthead {
    padding: 15px 0;
  }
}
header#masthead.is-scrolled {
  background-color: #0F1A45;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
header#masthead .header-container {
  max-width: 1100px;
  width: 100%;
  padding: 0 30px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (max-width: 870px) {
  header#masthead .header-container {
    padding: 0 20px;
  }
}
header#masthead .header-container .hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 35px;
  height: 9px;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  z-index: 1001;
  transition: opacity 0.2s;
}
header#masthead .header-container .hamburger-btn:hover {
  opacity: 0.85;
}
header#masthead .header-container .hamburger-btn .hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center center;
}
header#masthead .header-container .hamburger-btn[aria-expanded=true] .hamburger-line:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}
header#masthead .header-container .hamburger-btn[aria-expanded=true] .hamburger-line:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}
header#masthead .header-container .nav-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
}
header#masthead .header-container .nav-overlay {
  display: none;
}
header#masthead .header-container #site-navigation ul#primary-menu {
  display: flex;
  gap: 20px;
}
header#masthead .header-container #site-navigation ul#primary-menu li {
  color: white;
}
header#masthead .header-container #site-navigation ul#primary-menu li a {
  color: inherit;
  transition: 0.3s;
}
header#masthead .header-container #site-navigation ul#primary-menu li a:hover {
  opacity: 0.8;
}
header#masthead .header-container .header-cta a {
  padding: 17px 80px 16px 50px;
  background-color: white;
  border-radius: 30px;
  position: relative;
  color: #0F1A45;
  transition: 0.3s;
}
header#masthead .header-container .header-cta a:hover {
  opacity: 0.8;
}
header#masthead .header-container .header-cta a:hover::after {
  transform: translate(-65%, -50%) rotate(-135deg);
}
header#masthead .header-container .header-cta a::before {
  position: absolute;
  content: "";
  width: 43px;
  aspect-ratio: 1/1;
  background-color: #0F1A45;
  border-radius: 50%;
  top: 5.5px;
  right: 8px;
}
header#masthead .header-container .header-cta a::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 20px;
  width: 10px;
  height: 10px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: translate(-55%, -50%) rotate(-135deg);
  transition: 0.3s;
}

/* スマホサイズ（870px以下）でハンバーガーメニュー */
@media (max-width: 870px) {
  header#masthead .header-container .hamburger-btn {
    display: flex;
  }
  header#masthead .header-container .nav-wrap {
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100%;
    background-color: #0F1A45;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 100px 24px 24px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
  }
  header#masthead .header-container .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
  }
  header#masthead .header-container #site-navigation {
    width: 100%;
  }
  header#masthead .header-container #site-navigation ul#primary-menu {
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
  }
  header#masthead .header-container #site-navigation ul#primary-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }
  header#masthead .header-container #site-navigation ul#primary-menu li a {
    display: block;
    padding: 14px 0;
    font-size: 16px;
  }
  header#masthead .header-container .header-cta {
    margin-top: 16px;
  }
  header#masthead .header-container .header-cta a {
    display: block;
    text-align: center;
    padding: 16px 24px;
  }
  body.is-menu-open header#masthead .header-container .nav-overlay {
    opacity: 1;
    visibility: visible;
  }
  body.is-menu-open header#masthead .header-container .nav-wrap {
    transform: translateX(0);
  }
}
.center {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 0 10px;
}
@media (max-width: 870px) {
  .center {
    padding: 0 20px;
  }
}

.btn-wrap {
  text-align: right;
}

a.btn {
  position: relative;
  line-height: 1;
  background-color: #0F1A45;
  color: white;
  border-radius: 30px;
  padding: 18px 80px 18px 40px;
}
a.btn:hover {
  opacity: 0.8;
}
a.btn:hover::after {
  transform: translate(-65%, -50%) rotate(-135deg);
}
a.btn::before {
  content: "";
  position: absolute;
  width: 44px;
  aspect-ratio: 1/1;
  background-color: #fff;
  border-radius: 50%;
  right: 8px;
  top: 6px;
}
a.btn::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 20px;
  width: 10px;
  height: 10px;
  border-left: 2px solid #0F1A45;
  border-bottom: 2px solid #0F1A45;
  transform: translate(-55%, -50%) rotate(-135deg);
  transition: 0.3s;
}

footer {
  position: relative;
  background-image: url(../../img/master/bg-line.png);
  background-size: 100%;
  background-position: top center;
  background-repeat: repeat;
  padding: 240px 0 70px;
  margin-top: 150px;
}
@media (max-width: 870px) {
  footer {
    padding-top: 50px;
  }
}
footer::before {
  content: "";
  position: absolute;
  display: block;
  width: 100%;
  left: 0;
  background-image: url(../../img/master/bg.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  aspect-ratio: 320/39;
  bottom: 100%;
}
footer .footer-cta {
  background-color: #fff;
  border-radius: 20px;
  padding: 70px 60px;
  margin-bottom: 70px;
}
@media (max-width: 870px) {
  footer .footer-cta {
    padding: 50px 30px 40px;
    margin-bottom: 35px;
  }
}
footer .footer-cta .wrap {
  display: flex;
  justify-content: space-between;
}
@media (max-width: 870px) {
  footer .footer-cta .wrap {
    flex-direction: column;
    gap: 20px;
  }
}
footer .footer-cta .wrap .title {
  position: relative;
}
footer .footer-cta .wrap .title::before {
  content: "";
  display: block;
  width: 100%;
  max-width: 450px;
  background: url(../../img/master/contact.png) no-repeat left top;
  background-size: contain;
  aspect-ratio: 459/72;
  position: absolute;
  z-index: 1;
  top: -34px;
  left: -24px;
}
@media (max-width: 870px) {
  footer .footer-cta .wrap .title::before {
    top: -24px;
    left: -17px;
    max-width: 266px;
  }
}
footer .footer-cta .wrap .title h2 {
  position: relative;
  z-index: 2;
  font-size: 40px;
  line-height: 1.4;
}
@media (max-width: 870px) {
  footer .footer-cta .wrap .title h2 {
    font-size: 23px;
  }
}
footer .footer-cta .wrap .content ul {
  margin-bottom: 10px;
}
footer .footer-cta .wrap .content ul li {
  font-size: 18px;
  line-height: 1.8;
}
@media (max-width: 870px) {
  footer .footer-cta .wrap .content ul li {
    font-size: 14px;
  }
}
footer .footer-cta .wrap .content p {
  font-size: 22px;
  line-height: 1.6;
}
@media (max-width: 870px) {
  footer .footer-cta .wrap .content p {
    font-size: 20px;
  }
}
footer .footer-cta .btn-wrap {
  text-align: center;
  margin-top: 80px;
}
@media (max-width: 870px) {
  footer .footer-cta .btn-wrap {
    margin-top: 50px;
  }
}
footer .footer-cta .btn-wrap a.btn {
  border-radius: 60px;
  padding: 26px 133px 27px 97px;
  font-size: 24px;
  background-color: #0a0a0a;
}
@media (max-width: 870px) {
  footer .footer-cta .btn-wrap a.btn {
    padding: 16px 80px 16px 50px;
    font-size: 18px;
  }
}
footer .footer-cta .btn-wrap a.btn:hover {
  opacity: 0.8;
}
footer .footer-cta .btn-wrap a.btn:hover::after {
  transform: translate(-92%, -50%) rotate(-135deg);
}
@media (max-width: 870px) {
  footer .footer-cta .btn-wrap a.btn:hover::after {
    transform: translate(-46%, -50%) rotate(-135deg);
  }
}
footer .footer-cta .btn-wrap a.btn::before {
  width: 67px;
  right: 10px;
  top: 8px;
}
@media (max-width: 870px) {
  footer .footer-cta .btn-wrap a.btn::before {
    width: 46px;
    right: 7px;
    top: 4px;
  }
}
footer .footer-cta .btn-wrap a.btn::after {
  width: 18px;
  height: 18px;
  transform: translate(-82%, -50%) rotate(-135deg);
}
@media (max-width: 870px) {
  footer .footer-cta .btn-wrap a.btn::after {
    width: 14px;
    height: 14px;
    transform: translate(-36%, -50%) rotate(-135deg);
  }
}
footer .logo {
  width: 270px;
  margin: 0 auto;
  margin-bottom: 60px;
}
@media (max-width: 870px) {
  footer .logo {
    width: 140px;
    margin-bottom: 35px;
  }
}
footer .logo img {
  width: 100%;
}
footer .footer-bottom {
  border-top: solid 1px #fff;
  color: white;
  padding-top: 70px;
}
@media (max-width: 870px) {
  footer .footer-bottom {
    border: none;
    padding: 0;
  }
}
footer .footer-bottom .wrap {
  display: flex;
  justify-content: space-between;
  align-items: end;
}
@media (max-width: 870px) {
  footer .footer-bottom .wrap {
    flex-direction: column-reverse;
    align-items: center;
  }
}
footer .footer-bottom .wrap .left .sns-icons {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 870px) {
  footer .footer-bottom .wrap .left .sns-icons {
    justify-content: center;
  }
}
@media (max-width: 870px) {
  footer .footer-bottom .wrap .left nav {
    text-align: center;
  }
}
footer .footer-bottom .wrap .left nav ul li {
  font-size: 12px;
  margin-bottom: 9px;
}
footer .footer-bottom .wrap .left small {
  font-size: 15px;
}
@media (max-width: 870px) {
  footer .footer-bottom .wrap .right {
    width: 100%;
    padding-bottom: 25px;
    margin-bottom: 30px;
    border-bottom: solid 1px white;
  }
}
footer .footer-bottom .wrap .right nav ul li {
  font-size: 15px;
}
footer .footer-bottom .wrap .right nav ul li:not(:last-child) {
  margin-bottom: 9px;
}

section.under-header {
  background-image: url(../../img/under/header-president.png);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: top center;
  padding: 200px 0 110px;
  color: white;
}
@media (max-width: 870px) {
  section.under-header {
    padding: 120px 0 54px;
  }
}
section.under-header .center {
  padding: 0 20px;
}
section.under-header .page-title {
  font-size: 64px;
  margin-bottom: 8px;
  padding-bottom: 5px;
  position: relative;
  width: fit-content;
}
@media (max-width: 870px) {
  section.under-header .page-title {
    font-size: 36px;
  }
}
section.under-header .page-title::before {
  position: absolute;
  content: "";
  left: -100vw;
  bottom: 0;
  height: 1px;
  right: 0;
  background-color: white;
}
section.under-header .en-title {
  font-size: 24px;
  font-weight: 700;
  font-family: Avenir;
  margin-bottom: 0;
}
@media (max-width: 870px) {
  section.under-header .en-title {
    font-size: 18px;
  }
}

ul.ceo-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px 15px;
}
@media (max-width: 870px) {
  ul.ceo-list {
    grid-template-columns: repeat(1, 1fr);
  }
}
ul.ceo-list li .img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 370/405;
}
ul.ceo-list li .img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
ul.ceo-list li .img::before {
  content: "";
  position: absolute;
  width: 110%;
  aspect-ratio: 360/90;
  border-top: solid 1px #ccc;
  background: #EAEBEF;
  transform-origin: center;
  transform: translateX(-50%) rotate(-12.5deg);
  bottom: -11%;
  left: 50%;
}
ul.ceo-list li .text {
  text-align: right;
}
ul.ceo-list li .text .name {
  font-size: 32px;
}
ul.ceo-list li .text .company {
  font-size: 16px;
  margin-bottom: 8px;
}
ul.ceo-list li .text .tags {
  display: flex;
  justify-content: end;
  gap: 10px;
}
ul.ceo-list li .text .tags .tag {
  background-color: #0F1A45;
  border-radius: 20px;
  padding: 5px 20px;
  color: white;
  font-size: 15px;
}

section.post-header {
  background-image: url(../../img/master/bg-none.png);
  background-size: cover;
  background-position: top center;
  background-repeat: no-repeat;
  padding: 160px 0 110px;
}
@media (max-width: 870px) {
  section.post-header {
    padding: 100px 0 70px;
  }
}
section.post-header .center {
  color: white;
  text-align: center;
}
section.post-header .center .page-title {
  font-size: 64px;
  margin-bottom: 8px;
  padding-bottom: 5px;
  position: relative;
}
@media (max-width: 870px) {
  section.post-header .center .page-title {
    font-size: 32px;
    margin-bottom: 0;
    padding-bottom: 0;
  }
}
section.post-header .center .en-title {
  font-size: 24px;
  font-weight: 700;
  font-family: Avenir;
  margin-bottom: 0;
}
@media (max-width: 870px) {
  section.post-header .center .en-title {
    font-size: 16px;
  }
}

@media (max-width: 870px) {
  .site-branding {
    width: 121px;
  }
}