:root {
  --ink: #14213d;
  --muted: #5f6c7b;
  --line: #dbe4ea;
  --paper: #f7fafb;
  --white: #ffffff;
  --teal: #0f766e;
  --teal-dark: #0b4f4a;
  --blue: #2563eb;
  --amber: #c27a16;
  --shadow: 0 24px 60px rgba(20, 33, 61, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Noto Sans JP",
    "Yu Gothic",
    "Hiragino Kaku Gothic ProN",
    Meiryo,
    system-ui,
    sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(247, 250, 251, 0.92);
  border-bottom: 1px solid rgba(219, 228, 234, 0.85);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 220px;
}

.brand span {
  display: grid;
  line-height: 1.15;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #344054;
  font-size: 0.9rem;
}

.nav a {
  text-decoration: none;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.98fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(48px, 7vw, 96px) clamp(18px, 6vw, 80px) 42px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(37, 99, 235, 0.05) 42%, rgba(194, 122, 22, 0.08)),
    var(--paper);
}

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

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 12.5em;
  font-size: 4.85rem;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 14px;
  font-size: 2.7rem;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

.lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: #3f4d5a;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid var(--teal);
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  color: var(--white);
  background: var(--teal);
}

.button.secondary {
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.72);
}

.hero-visual {
  display: grid;
  place-items: center;
}

.hero-visual img {
  width: min(100%, 640px);
  height: auto;
  filter: drop-shadow(0 32px 34px rgba(20, 33, 61, 0.18));
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0 clamp(18px, 6vw, 80px);
  background: var(--line);
  border: 1px solid var(--line);
}

.trust-strip div {
  display: grid;
  gap: 4px;
  padding: 20px;
  background: var(--white);
}

.trust-strip strong {
  font-size: 0.78rem;
  color: var(--muted);
}

.section {
  padding: clamp(58px, 8vw, 112px) clamp(18px, 6vw, 80px);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading p,
.split p,
.english-section p,
.privacy-section p,
.contact-section p {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.service-card,
.aws-grid article,
.capability-grid article,
.project-card,
.contact-panel {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(20, 33, 61, 0.05);
}

.service-card p,
.aws-grid p,
.capability-grid p,
.project-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: var(--white);
  background: var(--ink);
  border-radius: 50%;
  font-size: 0.82rem;
  font-weight: 800;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(24px, 5vw, 64px);
  background: var(--white);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 16px 18px;
  border-left: 4px solid var(--teal);
  background: #eef7f6;
  color: #243242;
}

.aws-section {
  background: #eef4fb;
}

.microsoft-section {
  background: #f7fafb;
}

.solutions-section {
  background: #eef7f6;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.solution-grid article {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(20, 33, 61, 0.05);
}

.solution-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.capability-grid article {
  border-top: 4px solid var(--blue);
}

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

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-card {
  display: grid;
  align-content: start;
  min-height: 248px;
}

.project-tag {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 14px;
  padding: 4px 10px;
  color: #7c4a03;
  background: #fff4d8;
  border: 1px solid #f3d391;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
}

.cases-section {
  background: #f8fafc;
}

.case-list {
  display: grid;
  gap: 14px;
}

.case-item {
  display: grid;
  grid-template-columns: minmax(240px, 0.34fr) minmax(0, 0.66fr);
  gap: 22px;
  align-items: start;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.case-item p {
  margin: 0;
  color: var(--muted);
}

.case-label {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
}

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

.roadmap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.roadmap article {
  min-height: 210px;
  padding: 24px;
  background: linear-gradient(180deg, #ffffff, #eef4fb);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.roadmap span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

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

.process-section {
  background: #eef4fb;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.process-grid article {
  display: grid;
  gap: 10px;
  min-height: 128px;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.process-grid strong {
  color: var(--amber);
  font-size: 0.9rem;
}

.process-grid span {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.45;
}

.aws-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.company-table {
  display: grid;
  border: 1px solid var(--line);
  border-bottom: 0;
}

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

.company-table dt,
.company-table dd {
  margin: 0;
  padding: 16px 18px;
}

.company-table dt {
  color: #334155;
  background: #f1f5f9;
  font-weight: 800;
}

.company-table dd {
  background: var(--white);
}

.english-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: 32px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 440px);
  gap: 32px;
  background: linear-gradient(135deg, var(--ink), #173b55);
  color: var(--white);
}

.contact-section .eyebrow,
.contact-section p {
  color: #c9f0ea;
}

.contact-panel {
  color: var(--ink);
  box-shadow: var(--shadow);
}

.mail-link {
  display: block;
  margin-bottom: 8px;
  color: var(--teal-dark);
  font-size: 1.35rem;
  font-weight: 800;
  text-decoration: none;
}

.phone-link {
  display: block;
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 800;
  text-decoration: none;
}

.note {
  margin-bottom: 0;
  font-size: 0.9rem;
}

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

.privacy-section h2 {
  font-size: 1.55rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(18px, 6vw, 80px);
  color: #cbd5e1;
  background: #0f172a;
  font-size: 0.9rem;
}

.site-footer a {
  color: #e2e8f0;
  text-decoration: none;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero,
  .split,
  .english-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .service-grid,
  .solution-grid,
  .capability-grid,
  .project-grid,
  .roadmap,
  .process-grid,
  .aws-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  .hero {
    padding-top: 34px;
  }

  .nav {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .trust-strip,
  .service-grid,
  .solution-grid,
  .capability-grid,
  .project-grid,
  .roadmap,
  .process-grid,
  .aws-grid {
    grid-template-columns: 1fr;
  }

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

  .company-table dt,
  .company-table dd {
    padding: 12px 14px;
  }

  .site-footer {
    flex-direction: column;
  }
}