:root {
  --ink: #0b1722;
  --navy: #07131f;
  --navy-2: #0b1f30;
  --navy-3: #102b40;
  --paper: #f5f8fa;
  --white: #ffffff;
  --muted: #617180;
  --line: rgba(12, 31, 46, 0.14);
  --line-dark: rgba(255, 255, 255, 0.15);
  --cyan: #40d6ff;
  --cyan-2: #00a8db;
  --amber: #f4b951;
  --max: 1180px;
  --shadow: 0 22px 70px rgba(5, 17, 28, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--navy);
  background: var(--white);
  border-radius: 4px;
  transform: translateY(-150%);
}

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

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled,
.site-header.menu-open {
  background: rgba(7, 19, 31, 0.92);
  border-bottom-color: var(--line-dark);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), 1320px);
  min-height: 82px;
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1;
  clip-path: polygon(50% 0, 92% 18%, 84% 76%, 50% 100%, 16% 76%, 8% 18%);
  background: rgba(9, 33, 51, 0.64);
}

.brand-copy {
  display: grid;
  gap: 0;
  line-height: 1.2;
}

.brand-copy strong {
  font-size: 16px;
  letter-spacing: 0.12em;
}

.brand-copy small {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  width: 46px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line-dark);
  color: var(--white);
  background: transparent;
}

.menu-button span {
  display: block;
  width: 100%;
  height: 1px;
  margin: 5px 0;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  position: relative;
  display: flex;
  min-height: 780px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

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

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(3, 14, 24, 0.97) 0%, rgba(4, 20, 33, 0.88) 32%, rgba(5, 24, 39, 0.3) 67%, rgba(5, 18, 30, 0.46) 100%),
    linear-gradient(0deg, rgba(3, 13, 22, 0.7), transparent 48%);
}

.hero-grid {
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(90deg, #000, transparent 62%);
}

.hero-content {
  position: relative;
  z-index: 2;
  align-self: center;
  padding-top: 74px;
  padding-bottom: 96px;
}

.eyebrow,
.kicker {
  margin: 0 0 22px;
  color: var(--cyan-2);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  line-height: 1.4;
}

.eyebrow {
  color: var(--cyan);
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(48px, 6.5vw, 92px);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.13;
  text-wrap: balance;
}

.hero-lead {
  max-width: 720px;
  margin: 34px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  min-height: 52px;
  padding: 12px 24px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--navy);
  background: var(--cyan);
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(6, 20, 32, 0.3);
}

.hero-status {
  position: absolute;
  right: 4vw;
  bottom: 0;
  z-index: 3;
  display: grid;
  width: min(340px, 34vw);
  padding: 24px 28px;
  border-top: 2px solid var(--cyan);
  background: rgba(5, 19, 31, 0.88);
  backdrop-filter: blur(16px);
}

.hero-status span {
  color: var(--cyan);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.hero-status strong {
  margin-top: 5px;
  font-size: 18px;
  letter-spacing: 0.04em;
}

.hero-status small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.trust-rail {
  color: var(--white);
  background: var(--navy-2);
  border-top: 1px solid var(--line-dark);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-grid span {
  padding: 22px 18px;
  border-right: 1px solid var(--line-dark);
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-align: center;
}

.trust-grid span:first-child {
  border-left: 1px solid var(--line-dark);
}

.section {
  padding: 120px 0;
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 80px;
  align-items: end;
}

.section-intro .kicker {
  grid-column: 1 / -1;
  margin-bottom: -42px;
}

.section h2 {
  margin: 0;
  font-size: clamp(34px, 4.6vw, 62px);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.28;
}

.section-intro > p:last-child,
.section-heading > p,
.amami-copy > p:not(.kicker),
.policy-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 2;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 86px;
  background: var(--line);
  border: 1px solid var(--line);
}

.mission-card {
  min-height: 330px;
  padding: 42px 36px;
  background: var(--white);
}

.card-number {
  color: var(--cyan-2);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.mission-card h3 {
  margin: 72px 0 18px;
  font-size: 27px;
  line-height: 1.3;
}

.mission-card p {
  margin: 0;
  color: var(--muted);
}

.section-amami {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 90% 10%, rgba(25, 130, 176, 0.24), transparent 34%),
    var(--navy);
}

.section-amami::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.22;
  background-image: linear-gradient(90deg, transparent 49.8%, rgba(255, 255, 255, 0.06) 50%, transparent 50.2%);
  background-size: 120px 100%;
}

.amami-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(430px, 1.08fr);
  gap: 90px;
  align-items: center;
}

.kicker-cyan {
  color: var(--cyan);
}

.amami-copy > p:not(.kicker) {
  color: rgba(255, 255, 255, 0.68);
}

.amami-copy h2 {
  margin-bottom: 38px;
}

.amami-copy p + p {
  margin-top: 20px;
}

.signal-panel {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(11, 37, 57, 0.64);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(18px);
}

.signal-topline {
  display: flex;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line-dark);
  color: rgba(255, 255, 255, 0.55);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.signal-state {
  color: var(--cyan);
}

.signal-state i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}

.signal-map {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 390px;
  overflow: hidden;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
}

.signal-map::before,
.signal-map::after {
  position: absolute;
  width: 300px;
  height: 300px;
  content: "";
  border: 1px solid rgba(64, 214, 255, 0.16);
  border-radius: 50%;
}

.signal-map::after {
  width: 220px;
  height: 220px;
}

.signal-core {
  position: relative;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 154px;
  height: 154px;
  border: 1px solid rgba(64, 214, 255, 0.72);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29, 137, 180, 0.46), rgba(7, 25, 39, 0.92) 66%);
  box-shadow: 0 0 60px rgba(64, 214, 255, 0.22);
}

.signal-core small {
  font-size: 8px;
  letter-spacing: 0.14em;
}

.signal-core strong {
  margin-top: -38px;
  font-size: 26px;
  letter-spacing: 0.08em;
}

.signal-node {
  position: absolute;
  z-index: 4;
  width: 13px;
  height: 13px;
  border: 2px solid var(--navy);
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 20px var(--cyan);
}

.node-a { top: 21%; left: 18%; }
.node-b { top: 24%; right: 16%; }
.node-c { right: 18%; bottom: 20%; }
.node-d { bottom: 17%; left: 20%; }

.signal-line {
  position: absolute;
  z-index: 2;
  width: 30%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(64, 214, 255, 0.8));
  transform-origin: left center;
}

.line-a { top: 31%; left: 22%; transform: rotate(20deg); }
.line-b { top: 39%; left: 51%; transform: rotate(-28deg); }
.line-c { top: 64%; left: 31%; transform: rotate(-18deg); }

.signal-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--line-dark);
}

.signal-metrics div {
  padding: 20px;
  border-right: 1px solid var(--line-dark);
}

.signal-metrics div:last-child {
  border-right: 0;
}

.signal-metrics dt {
  color: var(--cyan);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.signal-metrics dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  line-height: 1.6;
}

.section-solutions {
  background: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 0.55fr);
  gap: 70px;
  align-items: end;
}

.section-heading h2 {
  font-size: clamp(34px, 4vw, 54px);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
  margin-top: 74px;
}

.solution-card {
  grid-column: span 4;
  min-height: 300px;
  padding: 32px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.solution-card:nth-child(4),
.solution-card:nth-child(5) {
  grid-column: span 6;
}

.solution-featured {
  color: var(--white);
  background: var(--navy-2);
  border-color: var(--navy-2);
}

.solution-tag {
  color: var(--cyan-2);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.solution-featured .solution-tag {
  color: var(--cyan);
}

.solution-card h3 {
  margin: 58px 0 16px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.solution-card p {
  margin: 0;
  color: var(--muted);
}

.solution-featured p,
.solution-featured li {
  color: rgba(255, 255, 255, 0.68);
}

.solution-card ul {
  margin: 22px 0 0;
  padding-left: 20px;
}

.solution-card li {
  margin-top: 6px;
  font-size: 14px;
}

.event-strip {
  padding: 50px 0;
  color: var(--white);
  background: linear-gradient(100deg, #0b2b42, #081823 72%);
}

.event-inner {
  display: grid;
  grid-template-columns: 170px 1fr 150px;
  gap: 42px;
  align-items: center;
}

.event-date {
  display: grid;
  padding-right: 36px;
  border-right: 1px solid var(--line-dark);
}

.event-date strong {
  font-size: 42px;
  line-height: 1;
}

.event-date span {
  margin-top: 8px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.event-copy .kicker {
  margin-bottom: 7px;
}

.event-copy h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.35;
}

.event-copy p:last-child {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
}

.event-place {
  color: rgba(255, 255, 255, 0.34);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.5;
  text-align: right;
}

.section-policy {
  background: #e9f0f4;
}

.policy-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(400px, 1.1fr);
  gap: 90px;
}

.policy-layout h2 {
  font-size: clamp(34px, 4vw, 52px);
}

.policy-copy {
  padding-left: 38px;
  border-left: 2px solid var(--cyan-2);
}

.policy-copy p + p {
  margin-top: 22px;
}

.section-company {
  color: var(--white);
  background: var(--navy);
}

.company-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(420px, 1.3fr);
  gap: 100px;
  align-items: start;
}

.company-title h2 {
  font-size: clamp(42px, 5vw, 66px);
}

.company-en {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

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

.company-table div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-dark);
}

.company-table dt {
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
  font-weight: 700;
}

.company-table dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 15px;
}

.site-footer {
  padding: 46px 0;
  color: var(--white);
  background: #040b12;
  border-top: 1px solid var(--line-dark);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand div {
  display: grid;
}

.footer-brand strong {
  font-size: 15px;
  letter-spacing: 0.1em;
}

.footer-brand small,
.footer-meta {
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
}

.footer-meta {
  text-align: right;
}

.footer-meta p {
  margin: 3px 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms ease, transform 500ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

@media (max-width: 960px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 82px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 8px 24px 24px;
    background: rgba(7, 19, 31, 0.97);
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-130%);
    visibility: hidden;
    transition: transform 180ms ease, visibility 180ms ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    visibility: visible;
  }

  .site-nav a {
    padding: 16px 4px;
    border-bottom: 1px solid var(--line-dark);
  }

  .menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .hero {
    min-height: 720px;
  }

  .hero-image {
    object-position: 64% center;
  }

  .hero-shade {
    background: linear-gradient(90deg, rgba(3, 14, 24, 0.95), rgba(3, 16, 27, 0.68) 70%, rgba(3, 16, 27, 0.55));
  }

  .hero-status {
    right: 24px;
    width: min(340px, calc(100% - 48px));
  }

  .section-intro,
  .section-heading,
  .amami-layout,
  .policy-layout,
  .company-layout {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .section-intro .kicker {
    margin-bottom: -20px;
  }

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

  .mission-card {
    min-height: auto;
  }

  .mission-card h3 {
    margin-top: 38px;
  }

  .amami-layout {
    gap: 70px;
  }

  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-card,
  .solution-card:nth-child(4),
  .solution-card:nth-child(5) {
    grid-column: auto;
  }

  .solution-featured {
    grid-row: span 2;
  }

  .event-inner {
    grid-template-columns: 150px 1fr;
  }

  .event-place {
    display: none;
  }

  .policy-copy {
    padding-left: 26px;
  }
}

@media (max-width: 660px) {
  .container,
  .header-inner {
    width: min(calc(100% - 32px), var(--max));
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .brand-copy small {
    display: none;
  }

  .site-nav {
    top: 72px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-content {
    padding-top: 110px;
    padding-bottom: 190px;
  }

  .hero h1 {
    font-size: clamp(44px, 13vw, 66px);
  }

  .desktop-break {
    display: none;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 320px;
  }

  .hero-status {
    right: 16px;
    bottom: 16px;
    left: 16px;
    width: auto;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-grid span {
    padding: 18px 8px;
    border-bottom: 1px solid var(--line-dark);
    font-size: 11px;
  }

  .section {
    padding: 86px 0;
  }

  .section h2 {
    font-size: clamp(32px, 9vw, 46px);
  }

  .section-intro > p:last-child,
  .section-heading > p,
  .amami-copy > p:not(.kicker),
  .policy-copy p {
    font-size: 16px;
  }

  .mission-grid,
  .solutions-grid {
    margin-top: 54px;
  }

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

  .solution-featured {
    grid-row: auto;
  }

  .solution-card {
    min-height: 260px;
  }

  .signal-map {
    min-height: 330px;
  }

  .signal-metrics {
    grid-template-columns: 1fr;
  }

  .signal-metrics div {
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .event-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .event-date {
    padding-right: 0;
    padding-bottom: 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .policy-copy {
    padding-left: 20px;
  }

  .company-table div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .footer-inner {
    display: grid;
  }

  .footer-meta {
    text-align: left;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}