:root {
  --bg: #0e1830;
  --bg-soft: #142347;
  --bg-deep: #091120;
  --primary: #29499d;
  --primary-strong: #3759b5;
  --accent: #91a8df;
  --text: #101a2e;
  --text-soft: #5f6d89;
  --line: rgba(28, 54, 112, 0.12);
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(10, 23, 48, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  background: #f6f8fc;
  line-height: 1.75;
}

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

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

button {
  font: inherit;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(9, 17, 32, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--white);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 14px;
  height: 42px;
  border-radius: 999px;
  background: linear-gradient(180deg, #4566cb 0%, #29499d 100%);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.95rem;
  transition: color 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--white);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
  border-radius: 999px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(70, 103, 204, 0.2), transparent 32%),
    radial-gradient(circle at 80% 30%, rgba(42, 74, 159, 0.25), transparent 28%),
    linear-gradient(180deg, #101a31 0%, #0a1223 100%);
  color: var(--white);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.03) 25%, transparent 25%) -40px 0 / 80px 80px,
    linear-gradient(225deg, rgba(255, 255, 255, 0.03) 25%, transparent 25%) -40px 0 / 80px 80px,
    linear-gradient(315deg, rgba(255, 255, 255, 0.03) 25%, transparent 25%) 0 0 / 80px 80px,
    linear-gradient(45deg, rgba(255, 255, 255, 0.03) 25%, transparent 25%) 0 0 / 80px 80px;
  opacity: 0.55;
}

.hero-overlay {
  position: absolute;
  inset: auto -10% -35% auto;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(93, 121, 205, 0.24), rgba(93, 121, 205, 0));
  filter: blur(18px);
}

.hero-inner {
  position: relative;
  padding: 128px 0 96px;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 28px;
  padding: 118px 0 92px;
  align-items: start;
}

.hero-copy-column {
  max-width: 760px;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before,
.section-kicker-dark::before {
  content: "";
  width: 14px;
  height: 40px;
  border-radius: 999px;
  background: linear-gradient(180deg, #4b6fd5 0%, #29499d 100%);
}

.section-kicker {
  color: var(--primary);
}

.section-kicker-dark {
  color: rgba(255, 255, 255, 0.88);
}

.hero h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero h1 span {
  display: block;
  color: #dbe5ff;
}

.hero-copy {
  max-width: 720px;
  margin: 28px 0 0;
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.78);
}

.hero-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.88rem;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition:
    transform 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease,
    color 0.25s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, #4063c6 0%, #29499d 100%);
  color: var(--white);
  box-shadow: 0 16px 40px rgba(41, 73, 157, 0.35);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.24);
  color: var(--white);
}

.button-full {
  width: 100%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
  grid-column: 1 / -1;
}

.hero-stats article,
.summary-card,
.pillar-card,
.asset-card,
.timeline-step,
.contact-card,
.scale-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
}

.hero-visual-card,
.overview-panel,
.quote-panel,
.advantage-visual,
.office-panel,
.metric-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.hero-visual-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 26px 60px rgba(4, 11, 24, 0.28);
}

.hero-visual-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
}

.hero-visual-body {
  padding: 22px 22px 24px;
}

.visual-label,
.panel-tag,
.metric-label {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-label,
.metric-label {
  color: #90a7e5;
}

.hero-visual-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.mini-list,
.compact-list,
.asset-points {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.mini-list li,
.compact-list li,
.asset-points li {
  position: relative;
  padding-left: 18px;
}

.mini-list li + li,
.compact-list li + li,
.asset-points li + li {
  margin-top: 10px;
}

.mini-list li::before,
.compact-list li::before,
.asset-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  transform: translateY(-50%);
}

.mini-list li {
  color: rgba(255, 255, 255, 0.76);
}

.hero-stats article {
  padding: 24px;
}

.hero-stats strong {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.hero-stats span {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.96rem;
}

.section {
  position: relative;
  padding: 104px 0;
}

.section-light {
  background: #f7f9fd;
}

.section-pattern {
  background:
    linear-gradient(135deg, rgba(38, 74, 162, 0.03) 25%, transparent 25%) -52px 0 / 104px 104px,
    linear-gradient(225deg, rgba(38, 74, 162, 0.03) 25%, transparent 25%) -52px 0 / 104px 104px,
    linear-gradient(315deg, rgba(38, 74, 162, 0.03) 25%, transparent 25%) 0 0 / 104px 104px,
    linear-gradient(45deg, rgba(38, 74, 162, 0.03) 25%, transparent 25%) 0 0 / 104px 104px,
    #ffffff;
}

.section-dark {
  background:
    radial-gradient(circle at 15% 15%, rgba(66, 99, 198, 0.24), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--white);
}

.section-heading {
  max-width: 860px;
  margin-bottom: 44px;
}

.section-heading h2,
.split-layout h2,
.contact-layout h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.section-heading p,
.text-stack p,
.lead {
  margin: 18px 0 0;
  font-size: 1rem;
  color: var(--text-soft);
}

.section-dark .lead,
.section-dark .text-stack p {
  color: rgba(255, 255, 255, 0.78);
}

.summary-grid,
.pillars,
.asset-grid {
  display: grid;
  gap: 22px;
}

.summary-grid,
.pillars,
.asset-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card,
.pillar-card,
.asset-card,
.timeline-step {
  padding: 28px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.overview-layout,
.pillar-layout,
.advantage-layout,
.company-layout {
  display: grid;
  gap: 24px;
}

.overview-layout {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: stretch;
}

.overview-layout .summary-grid {
  grid-template-columns: 1fr;
}

.overview-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(220px, 0.75fr);
  gap: 24px;
  align-items: center;
  padding: 28px;
  background: linear-gradient(135deg, #ffffff 0%, #f4f7ff 100%);
  box-shadow: var(--shadow);
}

.overview-panel img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  border-radius: 20px;
}

.overview-copy h3 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

.panel-tag {
  color: var(--primary);
}

.summary-card-compact {
  min-height: 100%;
}

.summary-number {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.compact-list {
  color: var(--text-soft);
}

.compact-list-tight {
  margin-top: 12px;
}

.pillar-layout {
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  align-items: stretch;
}

.quote-panel {
  display: grid;
  gap: 20px;
  align-content: start;
  padding: 24px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.quote-panel img,
.advantage-visual img,
.office-panel img {
  width: 100%;
  border-radius: 18px;
  object-fit: cover;
}

.quote-panel img {
  aspect-ratio: 16 / 10;
}

.summary-card h3,
.pillar-card h3,
.asset-card h3,
.timeline-step h3,
.contact-card h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
  line-height: 1.35;
}

.summary-card p,
.pillar-card p,
.asset-card p,
.timeline-step p {
  margin: 0;
  color: var(--text-soft);
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  margin-bottom: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4063c6 0%, #29499d 100%);
  color: var(--white);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.vision-quote {
  margin: 0;
  padding: 28px 32px;
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(41, 73, 157, 0.07);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.5;
}

.asset-card {
  position: relative;
  overflow: hidden;
}

.asset-card::after {
  content: "";
  position: absolute;
  inset: auto -20px -30px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(41, 73, 157, 0.18), rgba(41, 73, 157, 0));
}

.asset-figure {
  width: 100%;
  margin: -6px 0 18px;
  border-radius: 18px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.asset-points {
  color: var(--text-soft);
}

.asset-label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(41, 73, 157, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
}

.split-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 36px;
  align-items: start;
}

.section-heading-dark p {
  color: rgba(255, 255, 255, 0.76);
}

.scale-panel {
  padding: 32px;
  background: rgba(255, 255, 255, 0.06);
}

.scale-panel strong {
  display: block;
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.scale-panel span {
  display: block;
  margin-top: 12px;
  font-size: 1rem;
  color: #d3defb;
}

.scale-panel p {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

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

.timeline-step {
  position: relative;
  padding-top: 70px;
}

.timeline-step::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 28px;
  right: 28px;
  height: 1px;
  background: rgba(41, 73, 157, 0.18);
}

.step-number {
  position: absolute;
  top: 0;
  left: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 8px solid #eef3ff;
  border-radius: 50%;
  background: var(--white);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 800;
}

.text-stack {
  display: grid;
  gap: 10px;
}

.advantage-layout {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: stretch;
}

.advantage-visual {
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.advantage-visual img {
  aspect-ratio: 16 / 10;
}

.metric-stack {
  display: grid;
  gap: 18px;
}

.metric-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
}

.metric-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.75rem;
  line-height: 1.15;
  color: var(--white);
}

.metric-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
}

.info-table {
  display: grid;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.company-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: start;
}

.info-row {
  display: grid;
  grid-template-columns: minmax(150px, 220px) minmax(0, 1fr);
  gap: 24px;
  padding: 24px 28px;
}

.info-row + .info-row {
  border-top: 1px solid var(--line);
}

.info-row span {
  color: var(--text-soft);
  font-weight: 700;
}

.info-row strong {
  font-weight: 500;
}

.info-row a {
  color: var(--primary);
  font-weight: 700;
}

.office-panel {
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.office-panel img {
  aspect-ratio: 16 / 10;
}

.office-panel-body {
  padding: 24px;
}

.office-panel-body h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.office-panel-body p {
  margin: 0;
  color: var(--text-soft);
}

.contact-card {
  padding: 30px;
  background: rgba(255, 255, 255, 0.08);
}

.mail-link {
  display: inline-block;
  margin: 8px 0 16px;
  font-size: clamp(1.2rem, 3vw, 1.65rem);
  font-weight: 800;
  color: #dbe5ff;
  word-break: break-all;
}

.contact-card p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.76);
}

.site-footer {
  background: #07101f;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.88);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

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

@media (max-width: 1080px) {
  .summary-grid,
  .pillars,
  .asset-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .overview-layout,
  .overview-panel,
  .pillar-layout,
  .advantage-layout,
  .company-layout,
  .split-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 20px;
    left: 20px;
    display: grid;
    gap: 4px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(9, 17, 32, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity 0.25s ease,
      transform 0.25s ease,
      visibility 0.25s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 10px 12px;
    border-radius: 12px;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: rgba(255, 255, 255, 0.08);
  }

  .hero-inner {
    padding: 110px 0 88px;
  }

  .hero-stats,
  .summary-grid,
  .pillars,
  .asset-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding: 104px 0 84px;
  }

  .hero-visual-card {
    order: 3;
  }

  .hero-stats {
    order: 4;
    margin-top: 20px;
  }

  .section {
    padding: 88px 0;
  }

  .info-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .header-inner {
    min-height: 74px;
  }

  .brand-text {
    font-size: 0.92rem;
  }

  .brand-mark {
    width: 12px;
    height: 34px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.5rem);
  }

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

  .hero-copy {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

  .vision-quote {
    padding: 24px;
    font-size: 1.2rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}