:root {
  --navy: #153f70;
  --navy-dark: #123c6a;
  --navy-text: #173d6a;
  --blue-pale: #e5edf7;
  --orange: #ff7100;
  --footer: #6c7b8e;
  --serif: "Noto Serif JP", "Yu Mincho", "YuMincho", serif;
  --sans: "Noto Serif JP", "Yu Mincho", "YuMincho", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 1280px;
  color: var(--navy-text);
  background: #fff;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
h1,
h2,
dl,
dd {
  margin: 0;
}

.container {
  width: 1200px;
  margin-inline: auto;
}

.site-header {
  height: 80px;
  background: #fff;
  box-shadow: 0 2px 8px rgb(17 45 76 / 16%);
  position: relative;
  z-index: 10;
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  width: 166px;
}

.site-logo img {
  width: 166px;
  height: 64px;
  object-fit: contain;
}

.header-contact {
  align-self: stretch;
  width: 190px;
  margin-right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: #fff;
  background: var(--orange);
  font-size: 15px;
  letter-spacing: .1rem;
  transition: filter .2s ease;
}

.header-contact:hover,
.contact-button:hover {
  filter: brightness(.92);
}

.button-arrow {
  width: 42px;
  aspect-ratio: 90 / 16;
  display: inline-block;
  flex: 0 0 auto;
  background: url("../images/btn-arrow.webp") center / 100% 100% no-repeat;
}

.header-contact .button-arrow {
  width: 26px;
}

.hero {
  min-height: 528px;
  color: #fff;
  background: #234f86 url("../images/fv-bg.webp") center / cover no-repeat;
}

.hero__inner {
  padding-top: 132px;
}

.hero__lead {
  font-size: 33.05px;
  letter-spacing: .14em;
  line-height: 1.5;
}

.hero h1 {
  margin-top: 3px;
  font-size: 65.35px;
  font-weight: 500;
  letter-spacing: .16em;
  line-height: 1.45;
}

.hero__line {
  display: block;
  position: relative;
  width: 66px;
  height: 1px;
  left: -25px;
  margin-top: 31px;
  background: rgb(255 255 255 / 76%);
}

.hero__company {
  margin-top: 37px;
  font-size: 20px;
  letter-spacing: .16em;
}

.section-light {
  background: linear-gradient(to bottom, #e9eef4, #d9e3f2);
}

.business {
  padding: 136px 0 128px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading__en {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Montserrat", sans-serif;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: .1rem;
}

.section-heading__en span {
  width: 12px;
  height: 14px;
  background: currentColor;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.section-heading h2 {
  margin-top: 17px;
  font-size: 40px;
  font-weight: 500;
  letter-spacing: .24rem;
  line-height: 1.35;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 54px;
  margin-top: 54px;
}

.business-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
}

.business-card picture {
  display: block;
}

.business-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 572 / 331;
  object-fit: cover;
}

.business-card p {
  position: absolute;
  z-index: 1;
  inset: 105px 0 auto;
  padding: 25px 39px 25px;
  display: flex;
  align-items: center;
  color: #fff;
  background: rgb(15 57 103 / 90%);
  font-size: 22px;
  line-height: 1.656;
  letter-spacing: .1rem;
}

.project-card {
  min-height: 271px;
  margin-top: 120px;
  padding: 28px 60px 30px;
  display: grid;
  grid-template-columns: 523px 1fr;
  align-items: center;
  gap: 88px;
  border: 2px solid #2b5683;
  background: linear-gradient(to bottom right, #ffffff, #dfe4ec);
}

.project-card__visual {
  width: 523px;
  height: auto;
}

.project-card__description {
  font-size: 22px;
  line-height: 1.85;
  letter-spacing: .18em;
}

.profile {
  min-height: 760px;
  color: #fff;
  background-color: var(--navy-dark);
  background-image: url("../images/profile-img.webp");
  background-position: calc(50% + 516px) center;
  background-size: auto 520px;
  background-repeat: no-repeat;
}

.profile__inner {
  padding-top: 134px;
}

.profile__visual {
  display: none;
}

.section-heading--white {
  color: #fff;
}

.profile-table {
  width: 784px;
  margin-top: 32px;
  color: #263d5c;
}

.profile-row {
  min-height: 90px;
  display: grid;
  grid-template-columns: 255px 1fr;
  margin-bottom: 4px;
  background: #fff;
}

.profile-row dt,
.profile-row dd {
  padding: 14px 24px;
  display: flex;
  justify-content: center;
  flex-direction: column;
  font-size: 18.5px;
  line-height: 1.4;
}

.profile-row dt {
  align-items: center;
  min-height: 100px;
  color: #143967;
  background: #cbd5e7;
  font-weight: 600;
  letter-spacing: .08em;
}

.profile-row:last-child {
  min-height: 82px;
}

.profile-row:last-child dt {
  min-height: 82px;
}

.profile-row dd {
  padding-left: 24px;
  color: #111111;
  font-weight: 500;
  letter-spacing: .03em;
}

.profile-row dd span {
  font-family: var(--sans);
  font-size: 19.7px;
}

.profile-row dd small {
  margin-top: 2px;
  color: #555555;
  font-size: 14.3px;
}

.contact {
  min-height: 355px;
  background: #fff url("../images/contact-bg.webp") center / cover no-repeat;
}

.contact__inner {
  min-height: 355px;
  display: grid;
  grid-template-columns: 1fr 532px;
  align-items: center;
  gap: 100px;
}

.contact-button {
  position: relative;
  min-height: 68px;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: #fff;
  background: var(--orange);
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .1rem;
  transition: filter .2s ease;
}

.contact-button .button-arrow {
  position: absolute;
  top: 50%;
  right: 35px;
  transform: translateY(-50%);
}

.footer-info {
  height: 191px;
  display: flex;
  align-items: center;
  background: #143966;
  color: #fff;
}

.footer-info__inner {
  width: 1200px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-info a {
  font-size: 12px;
  color: #fff;
}

.footer-info img {
  width: 156px;
  height: 51px;
}

.site-footer {
  min-height: 102px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--footer);
  font-family: var(--serif);
  font-size: 17.2px;
  font-weight: 400;
  letter-spacing: .02em;
}

.sp-only {
  display: none;
}

@media screen and (max-width: 750px) {
  html {
    font-size: 2.1333vw; /* 750pxのとき16px */
  }
}

@media screen and (max-width: 768px) {
  body {
    min-width: 0;
    font-size: 1rem;
  }

  .container {
    width: 100%;
    padding-inline: 1.95rem;
  }

  .site-header {
    height: 6.25rem;
    box-shadow: 0 0.125rem 0.5rem rgb(17 45 76 / 16%);
  }

  .site-header__inner {
    padding-right: 0;
    padding-left: 1.8rem;
  }

  .site-logo,
  .site-logo img {
    width: 10.0625rem;
    height: auto;
  }

  .site-logo {
    flex-shrink: 0;
  }

  .header-contact {
    flex-shrink: 0;
    width: 18.8rem;
    min-width: 0;
    padding-inline: 0.45rem;
    gap: 1rem;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: .1rem;
    white-space: nowrap;
  }

  .button-arrow {
    width: 2.625rem;
    aspect-ratio: 70 / 10;
    background-image: url("../images/btn-arrow-sp.webp");
  }

  .header-contact .button-arrow {
    width: 1.9375rem;
  }

  .hero {
    min-height: 0;
    padding-bottom: 5.6rem;
    background-image: url("../images/fv-bg-sp.webp");
    background-position: center top;
  }

  .hero__inner {
    padding-top: 5.55rem;
  }

  .hero__lead {
    font-size: 2.5rem;
  }

  .hero h1 {
    margin-top: 0.9rem;
    font-size: 4.5rem;
    line-height: 1.25;
  }

  .hero__line {
    width: 4.125rem;
    left: -1.95rem;
    margin-top: 2.75rem;
  }

  .hero__company {
    margin-top: 2.55rem;
    font-size: 1.875rem;
  }

  .business {
    padding: 5.2rem 0 6.2rem;
  }

  .section-heading {
    margin-bottom: 0;
  }

  .section-heading__en {
    gap: 0.9375rem;
    font-size: 2rem;
    letter-spacing: .18rem;
  }

  .section-heading__en span {
    width: 1.5rem;
    height: 1.75rem;
  }

  .section-heading h2 {
    margin-top: 0.7rem;
    font-size: 3.125rem;
    letter-spacing: .06rem;
  }

  .business-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 3.25rem;
    margin-top: 4.35rem;
  }

  .business-card {
    width: min(100%, 43.125rem);
  }

  .business-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 690 / 500;
  }

  br.sp-only {
    display: inline;
  }

  .business-card p {
    inset: auto 0;
    top: 31.5%;
    padding: 2.5rem 3rem 2.6rem;
    font-size: 2.125rem;
    line-height: 3.1875rem;
    letter-spacing: .22rem;
  }

  .business-card:nth-child(2) p {
    top: 26.5%;
  }

  .project-card {
    width: min(100%, 43.125rem);
    min-height: 0;
    margin-top: 4.5rem;
    border-width: 0.125rem;
    margin-inline: auto;
    padding: 3.05rem 1.5625rem 2.5rem;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 2.15rem;
    text-align: center;
  }

  .project-card__visual {
    width: min(100%, 36.875rem);
  }

  .project-card__description {
    justify-self: stretch;
    width: 100%;
    padding-left: 1.4375rem;
    font-size: 2rem;
    font-weight: 600;
    line-height: 3rem;
    letter-spacing: .24rem;
    text-align: left;
  }

  .profile {
    position: relative;
    min-height: 0;
    background-image: none;
    overflow: hidden;
  }

  .profile__visual {
    display: block;
    position: absolute;
    left: 0;
    bottom: 5.7rem;
    z-index: 0;
    width: 100%;
  }

  .profile__visual img {
    display: block;
    width: 100%;
    height: auto;
  }

  .profile__inner {
    position: relative;
    z-index: 1;
    padding-top: 5.55rem;
    padding-bottom: 16.4rem;
  }

  .profile-table {
    width: 100%;
    margin-top: 4.15rem;
  }

  .profile-row,
  .profile-row:last-child {
    min-height: 0;
    margin-bottom: 0.5rem;
    grid-template-columns: 11.0625rem 1fr;
  }

  .profile-row dt,
  .profile-row:last-child dt {
    min-height: 0;
  }

  .profile-row dt,
  .profile-row dd {
    padding: 1.6rem 0.55rem;
    font-size: 1.75rem;
    line-height: 1.925rem;
    gap: 0.5625rem;
  }

  .profile-row dd {
    padding-left: 1.7rem;
  }

  .profile-row:nth-child(2) dd {
    line-height: 2.425rem;
  }

  .profile-row:nth-child(3) dt,
  .profile-row:nth-child(3) dd {
    line-height: 2.5rem;
  }

  .profile-row dd span {
    font-size: 1.525rem;
  }

  .profile-row dd small {
    display: block;
    margin-top: 0.125rem;
    font-size: 1.4rem;
    line-height: 1.5;
    letter-spacing: 0;
  }

  .contact {
    min-height: 0;
    background-image: url("../images/contact-bg-sp.webp");
  }

  .contact__inner {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 2.75rem;
    padding-block: 6.35rem;
  }

  .container.contact__inner {
    padding-top: 11.375rem;
  }

  .contact-button {
    width: 100%;
    min-height: 4.95rem;
    padding-inline: 3rem;
    font-size: 1.875rem;
  }

  .contact-button .button-arrow {
    right: 7.65rem;
  }

  .footer-info {
    height: 11.9375rem;
  }

  .footer-info__inner {
    width: 43.125rem;
  }

  .footer-info a {
    font-size: 1.375rem;
  }

  .footer-info img {
    width: 13.5625rem;
    height: 4.375rem;
  }

  .site-footer {
    min-height: 3.75rem;
    padding: 2.4rem 1rem 2.7rem;
    font-size: 1.34rem;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}