:root {
  color-scheme: light;
  --ink: #07111f;
  --text: #172033;
  --muted: #667085;
  --line: #d9e2ec;
  --paper: #ffffff;
  --soft: #f4f7fb;
  --mist: #eef5f6;
  --wash: #f8fbfd;
  --blue: #1d5fd1;
  --teal: #0f9f9a;
  --red: #b34040;
  --gold: #a87932;
  --radius: 8px;
  --max: 1280px;
  --shadow: 0 20px 60px rgba(7, 17, 31, .08);
  --font: Inter, "Segoe UI", "Noto Sans JP", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font);
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
img { display: block; max-width: 100%; }

.shell {
  width: min(var(--max), calc(100vw - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid rgba(217, 226, 236, .9);
  backdrop-filter: blur(16px);
}
.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-mark {
  width: 39px;
  height: 39px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
  font-size: 13px;
  flex: 0 0 auto;
}
.brand strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.1;
  white-space: nowrap;
}
.brand span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  white-space: nowrap;
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  color: #344054;
  font-size: 14px;
  font-weight: 760;
  white-space: nowrap;
  padding: 27px 0 25px;
  border-bottom: 2px solid transparent;
}
.nav a:hover, .nav a.active {
  color: var(--blue);
  border-bottom-color: currentColor;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}
.lang button {
  min-width: 38px;
  min-height: 30px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #475467;
  font-size: 12px;
  font-weight: 850;
}
.lang button.active {
  background: var(--ink);
  color: #fff;
}
.menu-toggle { display: none; }
.header-cta,
.button-primary,
.button-secondary,
.text-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 850;
  white-space: nowrap;
}
.header-cta, .button-primary {
  padding: 0 18px;
  background: var(--ink);
  color: #fff;
}
.button-secondary {
  padding: 0 18px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}
.text-link {
  min-height: auto;
  color: var(--blue);
  justify-content: flex-start;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.05) 1px, transparent 1px),
    radial-gradient(circle at 78% 18%, rgba(15,159,154,.18), transparent 30%),
    linear-gradient(120deg, #07111f 0%, #0b2532 100%);
  background-size: 48px 48px, 48px 48px, auto, auto;
  color: #fff;
}
.hero-inner {
  min-height: min(690px, calc(100svh - 74px));
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(360px, .72fr);
  align-items: center;
  gap: 56px;
  padding: 84px 0 74px;
}
.hero-copy {
  max-width: 720px;
  display: grid;
  gap: 24px;
}
.eyebrow {
  width: max-content;
  max-width: 100%;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.78);
  font-size: 12px;
  font-weight: 850;
}
.hero h1 {
  color: #fff;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
  max-width: 720px;
}
.hero p {
  color: rgba(255,255,255,.8);
  font-size: 18px;
  line-height: 1.8;
  max-width: 650px;
}
html[data-lang="ja"] .hero h1 {
  font-size: clamp(38px, 4.35vw, 58px);
  line-height: 1.15;
  max-width: 700px;
}
html[data-lang="ja"] .hero p {
  max-width: 620px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero .button-secondary {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-color: rgba(255,255,255,.25);
}
.hero-visual {
  color: var(--text);
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(217,226,236,.75);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.visual-top {
  min-height: 56px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.visual-top strong { color: var(--ink); font-size: 14px; }
.visual-top span { color: var(--muted); font-size: 12px; }
.business-map {
  padding: 22px;
  display: grid;
  gap: 12px;
}
.map-row {
  min-height: 74px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
  background: var(--wash);
}
.map-index {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
  font-size: 13px;
}
.map-row:nth-child(2) .map-index { background: var(--teal); }
.map-row:nth-child(3) .map-index { background: var(--gold); }
.map-row:nth-child(4) .map-index { background: var(--red); }
.map-row h3 { color: var(--ink); font-size: 16px; }
.map-row p { color: var(--muted); font-size: 13px; line-height: 1.55; }

.section {
  padding: 96px 0;
  background: #fff;
}
.section.alt { background: var(--soft); }
.section.mist { background: var(--mist); }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 48px;
  align-items: end;
  margin-bottom: 38px;
}
.section-head.compact { grid-template-columns: 1fr; max-width: 780px; }
.kicker {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 12px;
}
.section h2,
.page-hero h1 {
  color: var(--ink);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}
.section-head p,
.page-hero p,
.lead {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.feature-card,
.news-card,
.info-panel,
.contact-card,
.download-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 34px rgba(7, 17, 31, .04);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.feature-card:hover,
.news-card:hover,
.info-panel:hover,
.contact-card:hover,
.download-row:hover {
  border-color: rgba(29, 95, 209, .22);
  box-shadow: 0 18px 46px rgba(7, 17, 31, .07);
  transform: translateY(-2px);
}
.feature-card {
  min-height: 238px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.card-index {
  width: 38px;
  height: 30px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  background: rgba(29,95,209,.09);
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}
.feature-card h3,
.news-card h3,
.info-panel h3,
.contact-card h3 {
  color: var(--ink);
  font-size: 20px;
  line-height: 1.35;
}
.feature-card p,
.news-card p,
.info-panel p,
.contact-card p {
  color: var(--muted);
  line-height: 1.72;
  font-size: 14px;
}
.card-actions { margin-top: auto; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .8fr);
  gap: 42px;
  align-items: center;
}
.split.reverse { grid-template-columns: minmax(300px, .8fr) minmax(0, 1.05fr); }
.copy-block {
  display: grid;
  gap: 18px;
}
.copy-block h2 {
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.18;
}
.copy-block p {
  color: var(--muted);
  line-height: 1.85;
}
.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.metric {
  min-height: 112px;
  padding: 22px;
  border-right: 1px solid var(--line);
}
.metric:last-child { border-right: 0; }
.metric strong {
  display: block;
  color: var(--ink);
  font-size: 26px;
  line-height: 1.1;
}
.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.tech-panel {
  min-height: 360px;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(29,95,209,.13), transparent 42%),
    linear-gradient(315deg, rgba(15,159,154,.12), transparent 42%),
    #ffffff;
  display: grid;
  align-content: center;
  gap: 14px;
}
.tech-line {
  min-height: 54px;
  border: 1px solid rgba(217,226,236,.9);
  border-radius: var(--radius);
  background: rgba(255,255,255,.82);
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: 14px;
  padding: 0 16px;
}
.tech-line span { color: var(--blue); font-size: 12px; font-weight: 900; }
.tech-line strong { color: var(--ink); font-size: 15px; }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.news-card {
  min-height: 185px;
  padding: 24px;
  display: grid;
  gap: 14px;
}
.news-date { color: var(--blue); font-size: 12px; font-weight: 900; }

.page-hero {
  background:
    linear-gradient(90deg, rgba(29,95,209,.045) 1px, transparent 1px),
    linear-gradient(120deg, rgba(29,95,209,.07), transparent 38%),
    linear-gradient(180deg, #f8fbfd, #ffffff);
  background-size: 42px 42px, auto, auto;
  border-bottom: 1px solid var(--line);
}
.page-hero-inner {
  min-height: 250px;
  padding: 56px 0;
  display: grid;
  align-content: center;
  gap: 18px;
  max-width: 840px;
}
.breadcrumb {
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}
.breadcrumb a { color: var(--blue); }

.two-column {
  display: grid;
  grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}
.business-section {
  padding-top: 64px;
}
.business-layout {
  align-items: start;
  gap: 34px;
}
.side-nav {
  position: sticky;
  top: 98px;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #f8fbfd);
  box-shadow: 0 18px 48px rgba(7, 17, 31, .055);
}
.side-nav a {
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: #344054;
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 800;
}
.side-nav a:hover {
  color: var(--blue);
  border-color: rgba(29, 95, 209, .36);
}
.side-nav a:focus-visible {
  outline: 3px solid rgba(29, 95, 209, .22);
  outline-offset: 2px;
}
.side-summary {
  margin-top: 8px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  display: grid;
  gap: 10px;
}
.side-summary span {
  color: rgba(255,255,255,.66);
  font-size: 12px;
  font-weight: 850;
}
.side-summary strong {
  font-size: 24px;
  line-height: 1.1;
}
.side-summary p {
  color: rgba(255,255,255,.7);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}
.content-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.info-panel {
  min-height: 268px;
  padding: 24px;
  display: grid;
  align-content: start;
  gap: 16px;
}
.info-panel:first-child {
  border-top: 3px solid var(--blue);
}
.info-panel .kicker {
  width: 38px;
  height: 30px;
  margin-bottom: 2px;
  border-radius: 999px;
  background: rgba(29,95,209,.1);
  display: inline-grid;
  place-items: center;
}
.business-layout .info-panel:last-child {
  grid-column: 1 / -1;
  min-height: 220px;
}
.info-panel ul {
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  color: var(--muted);
  line-height: 1.62;
  display: grid;
  gap: 6px;
}
.info-panel li {
  position: relative;
  padding-left: 18px;
}
.info-panel li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--blue);
  position: absolute;
  left: 0;
  top: .68em;
}

.product-shot {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.product-shot img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.shot-caption {
  padding: 16px 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.company-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.company-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 18px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}
.company-row:last-child { border-bottom: 0; }
.company-row span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}
.company-row strong {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.65;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.contact-card {
  min-height: 190px;
  padding: 24px;
  display: grid;
  gap: 12px;
  align-content: start;
}
.contact-card a { color: var(--blue); font-weight: 850; overflow-wrap: anywhere; }
.contact-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 26px;
  display: grid;
  gap: 16px;
  box-shadow: 0 14px 42px rgba(7, 17, 31, .05);
}
.contact-split {
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  align-items: start;
}
.contact-panel-head {
  display: grid;
  gap: 10px;
}
.contact-panel-head h3 {
  color: var(--ink);
  font-size: 24px;
  line-height: 1.35;
}
.contact-panel-head p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.mail-actions {
  display: grid;
  gap: 10px;
}
.mail-action {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: minmax(120px, .72fr) minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  background: #fff;
}
.mail-action:hover {
  border-color: rgba(29, 95, 209, .38);
  background: #f8fbfd;
}
.mail-action span {
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
}
.mail-action strong {
  min-width: 0;
  color: var(--blue);
  font-size: 14px;
  overflow-wrap: anywhere;
}
.mail-action em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 850;
  white-space: nowrap;
}
.contact-note {
  padding: 16px;
  border-radius: var(--radius);
  background: var(--soft);
  display: grid;
  gap: 6px;
}
.contact-note strong {
  color: var(--ink);
  font-size: 13px;
}
.contact-note p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}
.download-list { display: grid; gap: 12px; }
.download-row {
  padding: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
}
.download-row strong { color: var(--ink); }
.download-row span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
.empty-state {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: #fff;
}

.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.72);
}
.footer-inner {
  min-height: 150px;
  padding: 34px 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}
.footer-brand strong { display: block; color: #fff; font-size: 18px; }
.footer-brand span { display: block; margin-top: 8px; color: rgba(255,255,255,.62); font-size: 13px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-end;
}
.footer-links a { font-size: 13px; font-weight: 800; }

@media (max-width: 980px) {
  .header-inner { min-height: 68px; }
  .nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    display: none;
    padding: 14px 24px 24px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    grid-template-columns: 1fr;
    gap: 0;
  }
  .nav.open { display: grid; }
  .nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0;
    border-bottom: 1px solid var(--line);
  }
  .menu-toggle {
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    display: grid;
    place-items: center;
    color: var(--ink);
    font-size: 0;
    font-weight: 900;
    position: relative;
  }
  .menu-toggle::before,
  .menu-toggle::after {
    content: "";
    width: 16px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    position: absolute;
    left: 10px;
  }
  .menu-toggle::before { top: 13px; box-shadow: 0 5px 0 currentColor; }
  .menu-toggle::after { top: 23px; }
  .header-cta { display: none; }
  .hero { background: #07111f; }
  .hero-inner,
  .split,
  .split.reverse,
  .contact-split,
  .two-column {
    grid-template-columns: 1fr;
  }
  .hero-inner { gap: 34px; padding: 62px 0; }
  .section-head,
  .feature-grid,
  .content-stack,
  .news-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .side-nav {
    position: static;
    padding: 14px;
  }
  .business-layout .info-panel:last-child {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 28px, var(--max)); }
  .brand span { display: none; }
  .brand strong { font-size: 16px; }
  .header-actions { gap: 8px; }
  .lang button { min-width: 34px; }
  .hero h1 { font-size: 39px; }
  .hero p { font-size: 16px; }
  .section { padding: 72px 0; }
  .feature-card { min-height: 0; }
  .metric-strip { grid-template-columns: 1fr; }
  .metric { border-right: 0; border-bottom: 1px solid var(--line); }
  .metric:last-child { border-bottom: 0; }
  .tech-line { grid-template-columns: 1fr; padding: 14px; gap: 6px; }
  .company-row { grid-template-columns: 1fr; gap: 6px; padding: 16px; }
  .download-row { grid-template-columns: 1fr; }
  .mail-action { grid-template-columns: 1fr; gap: 6px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}