:root {
  --paper: #f5f6f3;
  --ink: #23332b;
  --muted: #626e66;
  --brand: #0a6f37;
  --line: #dce2dc;
  --dark: #183b2c;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased
}

body.menu-open {
  overflow: hidden
}

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

button,
input,
textarea {
  font: inherit
}

button,
a,
input,
textarea {
  -webkit-tap-highlight-color: transparent
}

button {
  cursor: pointer
}

svg {
  display: block
}

::selection {
  background: #c6e7cf;
  color: var(--ink)
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 6px
}

.container {
  width: min(1280px, calc(100% - 112px));
  margin-inline: auto
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0
}

.skip-link {
  position: fixed;
  left: 20px;
  top: 12px;
  transform: translateY(-150%);
  z-index: 100;
  background: var(--ink);
  color: white;
  padding: 14px 20px
}

.skip-link:focus {
  transform: translateY(0)
}

.site-header {
  height: 94px;
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(250, 251, 248, .97);
  border-bottom: 1px solid #183c2920;
  backdrop-filter: blur(18px)
}

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

.brand {
  display: inline-flex;
  align-items: center
}

.brand-logo {
  display: block;
  width: 98px;
  height: auto
}

.site-footer .brand-logo {
  width: 132px
}

.site-nav {
  display: flex;
  gap: 36px;
  align-items: center
}

.nav-link {
  font-size: 12px;
  letter-spacing: .045em;
  position: relative;
  padding-block: 9px
}

.nav-link::after {
  content: "";
  height: 1px;
  background: var(--brand);
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  transition: width .2s
}

.nav-link:hover::after {
  width: 100%
}

.nav-contact {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 30px;
  background: var(--brand);
  color: white;
  padding: 16px 21px;
  transition: background .2s
}

.nav-contact:hover {
  background: var(--dark)
}

.arrow {
  width: 17px;
  height: 17px;
  flex-shrink: 0
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 12px;
  color: var(--ink)
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--dark);
  color: #fff
}

.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 56% 57%;
  filter: saturate(.72);
  z-index: -2
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(7, 27, 21, .91) 0%, rgba(7, 27, 21, .78) 32%, rgba(7, 27, 21, .32) 68%, rgba(7, 27, 21, .12) 100%), linear-gradient(0deg, rgba(7, 27, 21, .46), transparent 35%)
}

.hero-inner {
  position: relative;
  padding-top: 104px;
  padding-bottom: 37px;
  min-height: 730px;
  display: flex;
  flex-direction: column;
  justify-content: space-between
}

.hero h1 {
  margin: 0 0 29px;
  font-size: clamp(58px, 6.1vw, 92px);
  font-weight: 500;
  line-height: 1.13;
  letter-spacing: -.062em;
  max-width: 1030px
}

.hero h1 span {
  display: block
}

.hero h1 em {
  font-family: inherit;
  font-style: normal;
  color: #bce5c9;
  font-weight: 500;
  letter-spacing: -.062em
}

.hero-description {
  font-size: 14px;
  line-height: 2.1;
  letter-spacing: .055em;
  max-width: 640px;
  margin: 0;
  color: #f1f5f0
}

.hero-bottom {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-top: 72px
}

.scroll-link {
  display: inline-flex;
  gap: 16px;
  align-items: center;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .16em
}

.scroll-line {
  width: 28px;
  height: 39px;
  border: 1px solid #c6d7cb;
  border-radius: 20px;
  display: grid;
  place-items: center;
  transition: transform .2s
}

.scroll-link:hover .scroll-line {
  transform: translateY(4px)
}

.hero :focus-visible {
  outline-color: #bce5c9
}

.section {
  padding-block: 112px
}

.section-label {
  font-size: 10px;
  letter-spacing: .15em;
  font-weight: 500;
  display: flex;
  gap: 20px;
  align-items: baseline;
  line-height: 1.7
}

.section-number {
  color: var(--brand);
  font-family: var(--sans);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0
}

.about {
  background: white;
  border-top: 1px solid var(--line)
}

.about-grid,
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 2.55fr;
  gap: 48px
}

.section-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 500;
  line-height: 1.65;
  letter-spacing: .035em;
  margin: 0 0 30px
}

.accent {
  color: var(--brand)
}

.body-copy {
  font-size: 14px;
  line-height: 2.2;
  letter-spacing: .035em;
  margin: 0;
  color: #4f5e55
}

.about-copy {
  max-width: 805px
}

.section-heading {
  margin-bottom: 45px
}

.section-heading .section-label {
  margin: 0
}

.product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 410px;
  background: #edf2ed;
  position: relative;
  overflow: hidden
}

.product-content {
  padding: 49px 0 49px 48px;
  position: relative;
  z-index: 1
}

.service-kicker {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--brand)
}

.product h3 {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1.7;
  margin: 27px 0 20px
}

.product-name {
  display: block;
  font-size: 53px;
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -.055em;
  line-height: 1.2;
  margin-top: 3px
}

.product .body-copy {
  font-size: 13px;
  max-width: 445px
}

.text-link {
  font-size: 11px;
  letter-spacing: .045em;
  display: inline-flex;
  gap: 35px;
  align-items: center;
  border-bottom: 1px solid #9db9a5;
  padding-bottom: 10px;
  margin-top: 27px;
  transition: gap .2s
}

.text-link:hover {
  gap: 45px
}

.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 32px
}

.product-logo {
  display: block;
  width: 230px;
  max-width: 100%;
  height: auto;
  max-height: 310px;
  object-fit: contain
}

.solution-list {
  margin-top: 38px
}

.solution {
  display: grid;
  grid-template-columns: 75px minmax(230px, .95fr) minmax(0, 1.55fr);
  gap: 30px;
  padding: 45px 0;
  border-bottom: 1px solid var(--line)
}

.solution-index {
  font-family: var(--sans);
  font-size: 27px;
  font-weight: 500;
  color: #7f9e89;
  line-height: 1.2;
  padding-top: 27px
}

.solution h3 {
  font-size: 23px;
  line-height: 1.7;
  letter-spacing: .015em;
  font-weight: 500;
  margin: 12px 0 0
}

.solution .body-copy {
  font-size: 13px;
  line-height: 2.15
}

.profile {
  background: white;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line)
}

.profile-heading h2 {
  font-size: 31px;
  letter-spacing: .035em;
  font-weight: 500;
  margin: 24px 0 0
}

.profile-person {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
  gap: 25px
}

.person-name {
  font-size: 28px;
  letter-spacing: .12em;
  margin: 0;
  font-weight: 500
}

.person-en {
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--muted);
  margin: 9px 0 0
}

.person-title {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .08em;
  line-height: 1.9;
  text-align: right
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0
}

.timeline li {
  padding-top: 30px
}

.timeline .body-copy {
  font-size: 13px;
  line-height: 2.15
}

.contact {
  padding-block: 103px 109px;
  background: var(--dark);
  color: #f4f8f4
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 100px
}

.contact .section-number {
  color: #b4e6c3
}

.contact :focus-visible {
  outline-color: #b4e6c3
}

.contact h2 {
  font-family: var(--sans);
  font-size: clamp(54px, 5.5vw, 78px);
  font-weight: 500;
  letter-spacing: -.05em;
  line-height: 1.1;
  margin: 31px 0 17px
}

.contact-lead {
  font-size: 14px;
  letter-spacing: .06em;
  margin: 0;
  line-height: 2
}

.email-block {
  margin-top: 58px
}

.email-label {
  font-size: 10px;
  color: #c5dacb;
  letter-spacing: .13em;
  margin: 0 0 12px
}

.email-link {
  font-size: 21px;
  letter-spacing: .015em;
  border-bottom: 1px solid #7da88b;
  padding-bottom: 7px;
  display: inline-flex;
  gap: 25px;
  align-items: center
}

.email-link:hover {
  color: #b4e6c3
}

.contact-action {
  align-self: center;
  padding: 34px 0;
  border-top: 1px solid #799e84;
  border-bottom: 1px solid #799e84
}

.contact-action-label {
  margin: 0 0 21px;
  color: #c5dacb;
  font-size: 10px;
  letter-spacing: .14em
}

.contact-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 74px;
  padding: 23px 28px;
  background: var(--paper);
  color: var(--dark);
  font-size: 16px;
  letter-spacing: .045em;
  transition: background .2s
}

.contact-button:hover {
  background: #c6e7cf
}

.contact-button .arrow {
  transform: rotate(-45deg)
}

.contact-action-note {
  margin: 16px 0 0;
  font-size: 11px;
  line-height: 1.9;
  color: #c5dacb
}

@media(max-width:760px) {
  .contact-action {
    padding: 27px 0
  }

  .contact-button {
    min-height: 68px;
    padding: 21px 22px;
    font-size: 15px
  }

  .contact-action-note {
    font-size: 10px
  }
}

.site-footer {
  padding: 57px 0 24px
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 50px;
  padding-bottom: 45px
}

.footer-tagline {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  margin: 18px 0 0
}

.company {
  display: grid;
  grid-template-columns: auto auto;
  gap: 44px;
  font-size: 11px;
  letter-spacing: .035em;
  line-height: 2.1
}

.company h2 {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .13em;
  margin: 1px 0 0
}

.company p {
  margin: 0
}

.company-name {
  font-weight: 600;
  display: block;
  margin-bottom: 6px
}

.company address {
  font: inherit
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px
}

.copyright {
  font-size: 9px;
  color: var(--muted);
  letter-spacing: .08em;
  margin: 0
}

.back-top {
  font-size: 9px;
  letter-spacing: .12em;
  display: flex;
  align-items: center;
  gap: 15px
}

.back-top .arrow {
  transform: rotate(-90deg)
}

@media(min-width:1500px) {
  .hero-inner {
    min-height: 790px;
    padding-top: 118px
  }

  .hero-bottom {
    margin-top: 95px
  }
}

@media(max-width:1100px) {
  .container {
    width: calc(100% - 72px)
  }

  .site-nav {
    gap: 25px
  }

  .hero-inner {
    min-height: 690px;
    padding-top: 95px
  }

  .hero h1 {
    font-size: 7vw
  }

  .hero-description {
    max-width: 560px;
    font-size: 13px
  }

  .about-grid,
  .profile-grid {
    grid-template-columns: 1fr 2.7fr;
    gap: 35px
  }

  .product-content {
    padding-left: 35px
  }

  .solution {
    grid-template-columns: 48px .9fr 1.45fr;
    gap: 25px
  }

  .solution h3 {
    font-size: 21px
  }

  .contact-grid {
    gap: 65px
  }
}

@media(max-width:760px) {
  html {
    scroll-padding-top: 83px
  }

  .container {
    width: calc(100% - 44px)
  }

  .site-header {
    height: 76px
  }

  .site-header .brand-logo {
    width: 74px
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-right: -10px;
    font-size: 9px;
    letter-spacing: .09em
  }

  .menu-lines {
    width: 23px;
    height: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between
  }

  .menu-lines span {
    height: 1px;
    width: 100%;
    background: currentColor;
    transition: transform .2s
  }

  .menu-toggle[aria-expanded="true"] .menu-lines span:first-child {
    transform: translateY(7.5px) rotate(45deg)
  }

  .menu-toggle[aria-expanded="true"] .menu-lines span:last-child {
    transform: translateY(-7.5px) rotate(-45deg)
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 75px;
    left: 0;
    right: 0;
    max-height: calc(100svh - 75px);
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 20px 24px 30px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 25px 30px #183c2910
  }

  .site-nav.is-open {
    display: flex
  }

  .nav-link {
    padding: 20px 2px;
    border-bottom: 1px solid var(--line);
    font-size: 14px
  }

  .nav-link::after {
    display: none
  }

  .nav-contact {
    margin-top: 22px;
    padding: 18px 20px;
    justify-content: space-between
  }

  .hero-inner {
    padding-top: 64px;
    padding-bottom: 30px;
    min-height: 720px
  }

  .hero-photo {
    object-position: 58% 52%
  }

  .hero::after {
    background: linear-gradient(180deg, rgba(7, 27, 21, .88) 0%, rgba(7, 27, 21, .78) 38%, rgba(7, 27, 21, .26) 74%, rgba(7, 27, 21, .52) 100%)
  }

  .hero h1 {
    font-size: clamp(39px, 8.9vw, 66px);
    line-height: 1.19;
    letter-spacing: -.055em;
    margin: 0 0 26px
  }

  .hero h1 em {
    letter-spacing: -.055em
  }

  .hero-description {
    font-size: 13px;
    line-height: 2.05;
    letter-spacing: .025em;
    max-width: 390px
  }

  .desktop-break {
    display: none
  }

  .hero-bottom {
    margin-top: 96px
  }

  .scroll-link {
    font-size: 7px;
    gap: 9px;
    letter-spacing: .1em
  }

  .scroll-line {
    width: 24px;
    height: 33px
  }

  .section {
    padding-block: 68px
  }

  .about-grid,
  .profile-grid {
    grid-template-columns: 1fr;
    gap: 28px
  }

  .section-title {
    font-size: 25px;
    margin-bottom: 23px;
    letter-spacing: .01em;
    line-height: 1.7
  }

  .body-copy {
    font-size: 13px;
    line-height: 2.15;
    letter-spacing: .025em
  }

  .section-label {
    font-size: 9px;
    gap: 13px
  }

  .section-heading {
    margin-bottom: 29px
  }

  .product {
    grid-template-columns: 1fr;
    min-height: 0
  }

  .product-content {
    padding: 32px 26px 0
  }

  .product h3 {
    font-size: 15px;
    margin-top: 22px
  }

  .product-name {
    font-size: 48px;
    margin-top: 7px
  }

  .product .body-copy {
    font-size: 13px;
    line-height: 2.1
  }

  .text-link {
    font-size: 10px;
    margin-top: 22px;
    padding-bottom: 9px
  }

  .product-visual {
    padding: 31px 26px 35px
  }

  .product-logo {
    width: 190px;
    max-height: none
  }

  .solution-list {
    margin-top: 15px
  }

  .solution {
    grid-template-columns: 31px 1fr;
    gap: 0 15px;
    padding: 30px 0 32px
  }

  .solution-index {
    font-size: 23px;
    padding-top: 23px
  }

  .solution h3 {
    font-size: 21px;
    line-height: 1.65;
    margin-top: 9px
  }

  .solution .body-copy {
    grid-column: 2;
    font-size: 13px;
    line-height: 2.15;
    margin-top: 19px
  }

  .service-kicker {
    font-size: 8px
  }

  .profile-heading h2 {
    font-size: 27px;
    margin-top: 17px
  }

  .profile-grid {
    gap: 32px
  }

  .person-name {
    font-size: 25px
  }

  .person-en {
    font-size: 9px
  }

  .person-title {
    font-size: 9px
  }

  .timeline li {
    padding-top: 25px
  }

  .timeline .body-copy {
    font-size: 13px;
    line-height: 2.1
  }

  .contact {
    padding-block: 64px 48px
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px
  }

  .contact h2 {
    font-size: clamp(42px, 13vw, 64px);
    margin-top: 25px
  }

  .contact-lead {
    font-size: 13px
  }

  .email-block {
    margin-top: 30px
  }

  .email-link {
    font-size: 18px;
    gap: 25px
  }

  .email-label {
    font-size: 9px
  }

  .site-footer {
    padding-top: 39px
  }

  .footer-main {
    flex-direction: column;
    gap: 35px;
    padding-bottom: 32px
  }

  .footer-tagline {
    font-size: 15px;
    margin-top: 15px
  }

  .company {
    grid-template-columns: 75px 1fr;
    gap: 15px;
    font-size: 10px
  }

  .company h2 {
    font-size: 9px
  }

  .footer-bottom {
    padding-top: 21px
  }

  .copyright {
    font-size: 8px
  }

  .back-top {
    font-size: 8px;
    gap: 8px
  }
}

@media(max-width:360px) {
  .container {
    width: calc(100% - 36px)
  }

  .hero h1 {
    font-size: 35px
  }

  .person-title {
    font-size: 8px
  }

  .company {
    grid-template-columns: 62px 1fr;
    gap: 10px
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important
  }
}

/* Language controls stay visible when the mobile navigation is collapsed. */
.header-controls {
  display: flex;
  align-items: center;
  gap: 28px;
}
.language-switch {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: .07em;
  white-space: nowrap;
}
.language-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  min-height: 44px;
  padding: 0 2px;
  color: var(--muted);
}
.language-link:hover,
.language-link[aria-current="page"] {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 6px;
  text-decoration-thickness: 1px;
}
.language-link[aria-current="page"] {
  font-weight: 700;
}
.language-divider {
  color: #849187;
}
html[lang="en"] .hero-description {
  line-height: 1.9;
  letter-spacing: .015em;
}
html[lang="en"] .section-title {
  line-height: 1.35;
  letter-spacing: -.02em;
}
html[lang="en"] .body-copy {
  font-size: 14px;
  line-height: 1.95;
  letter-spacing: .005em;
}
html[lang="en"] .solution h3 {
  line-height: 1.5;
  letter-spacing: -.015em;
}
html[lang="en"] .person-name {
  font-size: clamp(22px, 2.4vw, 28px);
  letter-spacing: .01em;
}
html[lang="en"] .contact-lead {
  letter-spacing: .015em;
}
@media(max-width:1100px) {
  .header-controls { gap: 20px; }
}
@media(max-width:760px) {
  .header-controls { gap: 18px; }
}
@media(max-width:360px) {
  .header-controls { gap: 12px; }
  .language-switch { gap: 4px; }
}