:root {
  --ink: #1f2528;
  --muted: #66716f;
  --line: #d7dce0;
  --paper: #ffffff;
  --soft: #f5f6f4;
  --white: #ffffff;
  --teal: #276f72;
  --teal-dark: #174f55;
  --amber: #9a7a3d;
  --graphite: #263238;
  --shadow: 0 12px 36px rgba(31, 37, 40, 0.1);
  --radius: 8px;
  --radius-sm: 6px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "Noto Sans JP", "Hiragino Sans", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  column-gap: clamp(40px, 6vw, 86px);
  row-gap: 12px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand strong {
  font-size: 17px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 22px;
  color: #35413d;
  font-size: 13px;
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--teal);
}

.nav-links a.active {
  color: var(--teal-dark);
  font-weight: 800;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0;
  background: #ffffff;
}

.lang-switch button {
  min-width: 62px;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
}

.lang-switch button.active {
  color: var(--white);
  background: var(--graphite);
}

.hero {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 112px clamp(22px, 5vw, 72px) 64px;
  isolation: isolate;
}

.page-main {
  padding-top: 78px;
}

.page-hero {
  padding: 82px clamp(22px, 5vw, 72px) 58px;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  margin: 12px 0 18px;
  max-width: 980px;
}

.page-hero p {
  max-width: 780px;
  color: var(--muted);
  font-size: 18px;
}

.page-split {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(320px, 0.7fr);
  gap: clamp(34px, 6vw, 88px);
  align-items: start;
}

.text-panel {
  display: grid;
  gap: 18px;
}

.text-panel h2,
.detail-panel h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.16;
}

.text-panel p,
.detail-panel p {
  color: var(--muted);
  font-size: 17px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.detail-card {
  padding: 28px;
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: var(--radius);
}

.detail-card h2,
.detail-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.25;
}

.detail-card p {
  color: var(--muted);
}

.plain-list,
.check-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.plain-list li,
.check-list li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  color: #3d4945;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  background: var(--teal);
  border-radius: 50%;
  vertical-align: middle;
}

.business-list {
  margin: 0;
  padding-left: 1.2em;
  color: #3d4945;
}

.business-list li {
  margin: 10px 0;
}

.contact-panel {
  padding: 34px;
  background: var(--graphite);
  color: var(--white);
  border-radius: var(--radius);
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-panel .primary-button {
  margin-top: 18px;
  background: #d9a04a;
  color: #17201f;
  box-shadow: none;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  z-index: -3;
}

.hero-overlay {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(245, 246, 244, 0.98) 0%, rgba(245, 246, 244, 0.88) 42%, rgba(245, 246, 244, 0.36) 76%),
    linear-gradient(0deg, rgba(245, 246, 244, 0.96) 0%, rgba(245, 246, 244, 0) 30%);
}

.hero-content {
  max-width: 760px;
}

.eyebrow,
.section-label {
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(38px, 5.1vw, 66px);
  line-height: 1.12;
  letter-spacing: 0;
  max-width: 720px;
}

.hero-copy {
  max-width: 680px;
  color: #394541;
  font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-weight: 800;
}

.primary-button {
  color: var(--white);
  background: var(--teal-dark);
  box-shadow: 0 10px 26px rgba(21, 83, 79, 0.24);
}

.secondary-button {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.section-pad {
  padding: 78px clamp(22px, 5vw, 72px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 0.72fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: start;
  margin-top: 18px;
}

.intro h2,
.section-heading h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

.intro p,
.contact p {
  color: var(--muted);
  font-size: 17px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 28px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-grid article {
  min-height: 238px;
  padding: 30px;
  background: #ffffff;
  border-radius: var(--radius-sm);
}

.service-grid span {
  color: var(--amber);
  font-weight: 900;
}

.service-grid h3 {
  margin: 30px 0 12px;
  font-size: 22px;
}

.service-grid p,
.strength-list p,
.solution-grid p,
.process-steps p,
.delivery p,
.faq-grid p {
  color: var(--muted);
  margin-bottom: 0;
}

.solutions {
  background: #ffffff;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.solution-grid article {
  min-height: 246px;
  padding: 28px;
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: var(--radius);
}

.solution-grid h3,
.faq-grid h3 {
  margin-bottom: 14px;
  font-size: 21px;
  line-height: 1.28;
}

.process {
  background: var(--soft);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.process-steps div {
  min-height: 250px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.process-steps span {
  display: block;
  margin-bottom: 34px;
  color: var(--amber);
  font-weight: 900;
}

.process-steps strong {
  display: block;
  margin-bottom: 12px;
  font-size: 22px;
}

.strengths {
  background: #ffffff;
}

.strength-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.strength-list div {
  padding: 28px;
  border-left: 4px solid var(--teal);
  background: #ffffff;
  border-radius: var(--radius);
}

.strength-list strong {
  display: block;
  margin-bottom: 12px;
  font-size: 22px;
}

.delivery {
  background: var(--graphite);
  color: var(--white);
}

.delivery .section-label {
  color: #80d3c8;
}

.delivery-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: clamp(34px, 6vw, 88px);
  align-items: start;
}

.delivery h2 {
  margin: 12px 0 18px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.16;
}

.delivery p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
}

.delivery-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(255, 255, 255, 0.18);
}

.delivery-list li {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
  border-radius: var(--radius-sm);
}

.faq {
  background: #ffffff;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.faq-grid article {
  padding: 28px;
  background: #ffffff;
  border-radius: var(--radius-sm);
}

.company {
  background: var(--soft);
}

.company-table {
  margin: 0;
  border-top: 1px solid var(--line);
}

.company-table div {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.company-table dt {
  color: var(--muted);
  font-weight: 800;
}

.company-table dd {
  margin: 0;
  font-weight: 700;
}

[data-i18n="addressValue"] {
  white-space: pre-line;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  margin: clamp(22px, 5vw, 72px);
  padding: clamp(30px, 5vw, 52px);
  color: var(--white);
  background: var(--graphite);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact .section-label {
  color: #80d3c8;
}

.contact p {
  max-width: 720px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.74);
}

.contact .primary-button {
  white-space: nowrap;
  background: #d9a04a;
  color: #17201f;
  box-shadow: none;
}

.site-footer {
  padding: 54px clamp(22px, 5vw, 72px) 26px;
  color: var(--muted);
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 420px) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
}

.footer-brand strong {
  display: block;
  color: var(--ink);
  font-size: 20px;
}

.footer-brand small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.footer-brand p {
  max-width: 420px;
  margin: 18px 0 0;
  color: var(--muted);
}

.footer-right {
  display: grid;
  grid-template-columns: max-content max-content;
  gap: clamp(28px, 3.4vw, 56px);
  align-items: start;
  justify-self: end;
  margin-left: auto;
}

.footer-heading {
  display: block;
  margin-bottom: 14px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.footer-nav,
.footer-info {
  display: grid;
  gap: 14px;
  align-content: start;
  align-self: start;
  margin: 0;
}

.footer-nav a {
  color: var(--muted);
}

.footer-nav a:hover {
  color: var(--teal-dark);
}

.footer-info div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
}

.footer-info dt {
  color: #87918f;
}

.footer-info dd {
  margin: 0;
}

.footer-bottom {
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #87918f;
  font-size: 13px;
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .intro-grid,
  .contact,
  .delivery-layout,
  .page-split {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .strength-list,
  .solution-grid,
  .process-steps,
  .faq-grid,
  .detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: sticky;
    padding: 12px 16px;
    gap: 10px;
  }

  .brand small {
    display: none;
  }

  .brand strong {
    font-size: 15px;
  }

  .lang-switch button {
    min-width: 52px;
    padding: 6px 9px;
  }

  .hero {
    min-height: 700px;
    padding: 78px 20px 54px;
  }

  .page-main {
    padding-top: 0;
  }

  .page-hero {
    padding: 56px 20px 48px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(247, 245, 239, 0.98) 0%, rgba(247, 245, 239, 0.9) 58%, rgba(247, 245, 239, 0.45) 100%);
  }

  .hero-actions {
    flex-direction: column;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .section-pad {
    padding: 58px 20px;
  }

  .section-heading {
    display: block;
  }

  .section-heading h2 {
    margin-top: 8px;
  }

  .service-grid,
  .strength-list,
  .solution-grid,
  .process-steps,
  .faq-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .service-grid article,
  .solution-grid article,
  .process-steps div {
    min-height: 220px;
    padding: 24px;
  }

  .process-steps span {
    margin-bottom: 24px;
  }

  .company-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .contact {
    margin: 20px;
    padding: 28px 22px;
  }

  .site-footer {
    padding: 42px 20px 24px;
  }

  .footer-info div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}