*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --off-white: #ffffff;
  --ink-blue: #1a1f2e;
  --gold: #b8964a;
  --text-muted: #6b7280;
  --border: rgba(26, 31, 46, 0.12);
  --border-light: rgba(255, 255, 255, 0.12);
}

body {
  background: var(--off-white);
  color: var(--ink-blue);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-text {
  font-family: 'Lexend Deca', sans-serif;
  font-size: 1.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #1f0acc;
}

.logo-sub {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.nav-back {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--ink-blue); }

/* ── Hero ── */
.hero {
  background: var(--ink-blue);
  padding-top: 68px;
  overflow: hidden;
}

.hero-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 100px 40px 100px;
}

.label-tag {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  border: 1px solid rgba(184,150,74,0.4);
  display: inline-block;
  padding: 4px 14px;
  margin-bottom: 40px;
}

.hero-catch {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.5;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  max-width: 760px;
}

.hero-sub {
  font-size: 0.95rem;
  line-height: 2;
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  margin-bottom: 48px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 14px 32px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn-cta:hover {
  background: var(--gold);
  color: #fff;
}

/* Hero内のボタンは白背景CTAと区別しない（goldのまま） */
.hero .btn-cta {
  color: var(--gold);
  border-color: var(--gold);
}
.hero .btn-cta:hover {
  background: var(--gold);
  color: #fff;
}

/* ── Section commons ── */
.section-light { background: var(--off-white); }
.section-dark  { background: var(--ink-blue); }

.section-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 100px 40px;
}

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 56px;
}
.section-dark .section-title {
  color: var(--off-white);
}

/* ── Issue List (課題提起) ── */
.issue-list {
  list-style: none;
  max-width: 760px;
}

.issue-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-blue);
}

.issue-item:first-child {
  border-top: 1px solid var(--border);
}

.issue-marker {
  font-family: 'Inter', sans-serif;
  color: var(--gold);
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── Process (プロセス) ── */
.process-lead {
  font-size: 0.95rem;
  line-height: 2.1;
  color: rgba(255,255,255,0.6);
  max-width: 760px;
  margin-bottom: 64px;
}

.process-list {
  display: flex;
  flex-direction: column;
  max-width: 760px;
}

.process-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 28px;
  align-items: stretch;
}

.process-num-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
}

.process-num {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--gold);
  width: 36px;
  height: 36px;
  border: 1px solid rgba(184,150,74,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
}

.process-connector {
  width: 1px;
  flex: 1;
  min-height: 40px;
  background: rgba(184,150,74,0.25);
  margin-top: 8px;
  margin-bottom: 8px;
}

.process-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 0 48px;
}

.process-item:last-child .process-body {
  padding-bottom: 8px;
}

.process-title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  color: rgba(255,255,255,0.92);
}

.process-desc {
  font-size: 0.875rem;
  line-height: 2;
  color: rgba(255,255,255,0.5);
}

.process-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.process-col {
  border: 1px solid rgba(184,150,74,0.25);
  padding: 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.process-col-title {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.process-col-desc {
  font-size: 0.82rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.45);
}

/* ── Value Proposition (分析して、終わりにしない) ── */
.value-body {
  max-width: 760px;
}

.value-lead {
  font-size: 0.95rem;
  line-height: 2.2;
  color: var(--ink-blue);
  opacity: 0.85;
  margin-bottom: 36px;
}

.value-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 40px;
}

.value-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  line-height: 1.8;
}

.value-item:first-child {
  border-top: 1px solid var(--border);
}

.value-marker {
  font-family: 'Inter', sans-serif;
  color: var(--gold);
  font-size: 1rem;
  flex-shrink: 0;
}

.value-item-title {
  font-weight: 500;
  color: var(--ink-blue);
}

.value-item-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.value-close {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--ink-blue);
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-style: italic;
  opacity: 0.8;
}

/* ── Case Card (支援実績・1枚) ── */
.case-single {
  border: 1px solid rgba(184,150,74,0.25);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 900px;
}

.case-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}

.case-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-num {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.case-industry {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  display: inline-block;
  padding: 3px 12px;
  line-height: 1.6;
}

.case-section-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  opacity: 0.8;
  margin-bottom: 8px;
  display: block;
}

.case-text {
  font-size: 0.88rem;
  line-height: 2;
  color: var(--ink-blue);
}

.case-text ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.case-text ul li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.case-text ul li::before {
  content: '—';
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.case-result {
  font-size: 0.88rem;
  line-height: 2;
  color: var(--ink-blue);
  border-left: 2px solid var(--gold);
  padding-left: 20px;
}

/* ── Reason List (選ばれる理由) ── */
.reason-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 760px;
}

.reason-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: baseline;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-light);
}

.reason-item:first-child {
  border-top: 1px solid var(--border-light);
}

.reason-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
}

.reason-desc {
  font-size: 0.875rem;
  line-height: 2;
  color: rgba(255,255,255,0.55);
}

/* ── Step Flow (支援の流れ) ── */
.step-list {
  display: flex;
  flex-direction: column;
  max-width: 720px;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.step-item:first-child {
  border-top: 1px solid var(--border);
}

.step-num {
  font-family: 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--gold);
  line-height: 1;
  padding-top: 4px;
}

.step-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink-blue);
}

.step-desc {
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--text-muted);
}

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  max-width: 760px;
}

.faq-item {
  padding: 32px 0;
  border-bottom: 1px solid var(--border-light);
}

.faq-item:first-child {
  border-top: 1px solid var(--border-light);
}

.faq-q {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
  align-items: baseline;
}

.faq-q::before {
  content: 'Q.';
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  flex-shrink: 0;
}

.faq-a {
  font-size: 0.88rem;
  line-height: 2;
  color: rgba(255,255,255,0.55);
  padding-left: 28px;
}

/* ── CTA Section ── */
.cta-section .section-inner {
  text-align: center;
}

.cta-title {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 400;
  color: var(--ink-blue);
  line-height: 1.8;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.cta-sub {
  font-size: 0.88rem;
  line-height: 2;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

/* ── Footer ── */
footer {
  background: #0f1218;
  color: rgba(250, 248, 244, 0.4);
  padding: 48px 40px;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: rgba(250, 248, 244, 0.5);
}

.footer-policy {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(250, 248, 244, 0.4);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-policy:hover { color: rgba(250, 248, 244, 0.8); }

.footer-copy {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(250, 248, 244, 0.4);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-inner { padding: 0 24px; }

  .hero-inner { padding: 72px 24px 80px; }
  .hero-catch { font-size: 1.8rem; }

  .section-inner { padding: 80px 24px; }

  .process-item {
    grid-template-columns: 44px 1fr;
    gap: 20px;
  }
  .process-body { padding-bottom: 36px; }
  .process-columns { grid-template-columns: 1fr; }

  .case-single { padding: 28px 24px; }
  .case-img-placeholder { max-width: 100%; }

  .reason-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
    padding: 40px 24px;
  }
}