:root {
  --bg: #f5f7fb;
  --bg-soft: #fbfcff;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-strong: #ffffff;
  --ink: #1a1f35;
  --muted: #55617d;
  --line: rgba(20, 34, 86, 0.12);
  --accent: #c98a00;
  --accent-deep: #0f2167;
  --accent-soft: rgba(201, 138, 0, 0.14);
  --hero-deep: #091337;
  --hero-mid: #0f2167;
  --hero-light: #1c3894;
  --shadow: 0 20px 60px rgba(11, 25, 72, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(201, 138, 0, 0.12), transparent 30%),
    radial-gradient(circle at bottom left, rgba(15, 33, 103, 0.08), transparent 28%),
    linear-gradient(180deg, #f6f8fc 0%, #fbfcff 48%, #f3f6fb 100%);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  line-height: 1.7;
}

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

p,
ul,
ol,
dl {
  margin: 0;
}

ul,
ol {
  padding-left: 1.2rem;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(247, 250, 255, 0.9);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-deep), #18348f);
  color: #fff9f4;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-text strong,
.hero h1,
.section-head h2,
.service-card h3,
.strength-grid h3,
.case-card h3,
.note-grid h3,
.company-grid h2,
.contact-section h2,
.panel-title,
.hero-panel h2,
.trust-grid strong,
.content-card h2,
.side-card h2,
.contact-card h3 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "MS PMincho", serif;
  font-weight: 700;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.78rem;
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(15, 33, 103, 0.16);
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-deep);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.96rem;
}

.site-nav a:hover,
.footer-links a:hover,
.service-card a:hover,
.back-link:hover {
  color: var(--accent-deep);
}

.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(15, 33, 103, 0.14);
  background: rgba(255, 255, 255, 0.8);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 82px 0 62px;
  color: #f6f8ff;
  background:
    radial-gradient(circle at top right, rgba(201, 138, 0, 0.32), transparent 22%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.08), transparent 24%),
    linear-gradient(135deg, var(--hero-deep) 0%, var(--hero-mid) 56%, var(--hero-light) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 38%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: 34px;
  align-items: start;
}

.eyebrow {
  color: #f0c65e;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 4.6vw, 4.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.lead {
  margin-top: 22px;
  font-size: 1.06rem;
  color: rgba(246, 248, 255, 0.8);
  max-width: 50rem;
}

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

.hero-tags span,
.tag,
.status {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.hero-tags span {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff7d8;
}

.hero-actions,
.contact-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, #c98a00, #f0b429);
  color: #142256;
  box-shadow: 0 12px 24px rgba(201, 138, 0, 0.24);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #f6f8ff;
}

.submit-button {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.hero-points {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  color: rgba(246, 248, 255, 0.76);
}

.hero-panel,
.service-card,
.case-card,
.note-grid article,
.contact-card,
.content-card,
.side-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 26px;
  border-radius: 28px;
}

.panel-title {
  font-size: 1.28rem;
  margin-bottom: 18px;
  color: var(--ink);
}

.signal-list {
  display: grid;
  gap: 16px;
}

.signal-list article {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.signal-list article:first-child {
  padding-top: 0;
  border-top: 0;
}

.signal-list span {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(201, 138, 0, 0.16);
  color: var(--accent-deep);
  font-weight: 700;
}

.signal-list h2 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  color: var(--ink);
}

.signal-list p,
.section-head p,
.service-card p,
.strength-grid p,
.case-card p,
.note-grid p,
.company-copy,
.contact-section p,
.flow-list span,
.content-card p,
.side-card p,
.form-intro,
.form-note,
.trust-grid p {
  color: var(--muted);
}

.trust-band {
  padding: 22px 0 10px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.trust-grid article {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(20, 34, 86, 0.08);
}

.trust-grid strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.02rem;
}

.section {
  padding: 84px 0;
}

.section.alt {
  background: rgba(245, 248, 255, 0.86);
  border-top: 1px solid rgba(20, 34, 86, 0.05);
  border-bottom: 1px solid rgba(20, 34, 86, 0.05);
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head.narrow {
  max-width: 760px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 3vw, 3rem);
  color: var(--ink);
}

.service-grid,
.case-grid,
.note-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.service-card {
  grid-column: span 4;
  padding: 24px;
  border-radius: 24px;
}

.service-card.featured {
  grid-column: span 6;
}

.service-card.compact {
  grid-column: span 4;
}

.muted-card {
  opacity: 0.92;
}

.status,
.tag {
  background: rgba(201, 138, 0, 0.14);
  color: #7f5700;
  margin-bottom: 14px;
}

.service-card h3,
.case-card h3,
.note-grid h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  color: var(--ink);
}

.service-card ul,
.contact-card ul,
.content-card ul,
.content-card ol,
.side-card ul {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  color: var(--muted);
}

.service-card a {
  display: inline-flex;
  margin-top: 18px;
  color: var(--accent-deep);
  font-weight: 700;
}

.service-footnote {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(15, 33, 103, 0.05);
  border: 1px solid rgba(15, 33, 103, 0.08);
}

.service-footnote p {
  color: var(--muted);
}

.service-footnote strong {
  color: var(--ink);
}

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

#strengths .section-head h2 {
  max-width: none;
  line-height: 1.24;
}

.strength-grid article {
  padding: 0 8px 0 0;
}

.strength-grid h3 {
  margin: 0 0 8px;
  font-size: 1.18rem;
  color: var(--ink);
}

.case-card,
.note-grid article {
  grid-column: span 4;
  padding: 22px;
  border-radius: 22px;
}

.signal-band {
  color: #fdf8f2;
  background:
    linear-gradient(135deg, rgba(9, 19, 55, 0.98), rgba(15, 33, 103, 0.98)),
    radial-gradient(circle at top right, rgba(201, 138, 0, 0.28), transparent 26%);
}

.signal-band .eyebrow,
.signal-band .flow-list span {
  color: rgba(253, 248, 242, 0.8);
}

.signal-band h2,
.signal-band strong {
  color: #fffdf9;
}

.signal-band-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 34px;
}

.flow-list {
  display: grid;
  gap: 18px;
  list-style: none;
  padding: 0;
  counter-reset: flow;
}

.flow-list li {
  position: relative;
  padding-left: 72px;
  min-height: 54px;
}

.flow-list li::before {
  counter-increment: flow;
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  color: #fffdf9;
  font-weight: 700;
}

.flow-list strong {
  display: block;
  margin-bottom: 6px;
}

.company-grid,
.contact-grid,
.subpage-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: start;
}

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

.company-table div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

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

.contact-section {
  padding-bottom: 96px;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  color: var(--muted);
}

.contact-card {
  padding: 24px;
  border-radius: 26px;
}

.contact-form-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 250, 255, 0.96));
}

.contact-card h3 {
  margin: 0 0 12px;
  font-size: 1.22rem;
  color: var(--ink);
}

.contact-form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.contact-mail-box {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 18px;
  border-radius: 16px;
  background: rgba(15, 33, 103, 0.05);
  border: 1px solid rgba(15, 33, 103, 0.08);
}

.contact-mail-box p {
  color: var(--muted);
}

.contact-mail-box strong,
.contact-mail-box a {
  color: var(--ink);
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form span {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ink);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(20, 34, 86, 0.16);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(15, 33, 103, 0.14);
  border-color: rgba(15, 33, 103, 0.28);
}

.compact-actions {
  margin-top: 18px;
}

.compact-actions .button.secondary {
  color: var(--ink);
  border-color: rgba(20, 34, 86, 0.12);
  background: rgba(255, 255, 255, 0.8);
}

.site-footer {
  padding: 28px 0 44px;
  border-top: 1px solid var(--line);
  background: #eef3fb;
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-wrap p {
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
}

.subpage-hero {
  padding: 82px 0 46px;
  background:
    radial-gradient(circle at top right, rgba(201, 138, 0, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(15, 33, 103, 0.06), rgba(247, 250, 255, 0.92));
  border-bottom: 1px solid rgba(20, 34, 86, 0.06);
}

.subpage-hero .hero-copy {
  max-width: 840px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 700;
}

.content-card,
.side-card {
  padding: 26px;
  border-radius: 26px;
}

.content-card h2,
.side-card h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
  color: var(--ink);
}

.content-stack {
  display: grid;
  gap: 22px;
}

.tag-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

@media (max-width: 980px) {
  .hero-grid,
  .signal-band-grid,
  .company-grid,
  .contact-grid,
  .subpage-layout,
  .strength-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .service-card.featured,
  .service-card.compact,
  .case-card,
  .note-grid article {
    grid-column: span 12;
  }

  .strength-grid article {
    padding-right: 0;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-wrap {
    flex-wrap: wrap;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding-top: 12px;
  }

  .site-nav.open {
    display: flex;
  }

  .hero {
    padding-top: 56px;
  }

  .section,
  .contact-section {
    padding: 68px 0;
  }

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

  .flow-list li {
    padding-left: 64px;
  }
}