/* ================================================
   ZETTA TECHNOLOGY - TOP PAGE STYLESHEET
   Brand: #990000 (Red) / Navy / White
   Design: Professional, Issue-Driven, Data Intelligence
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Noto+Serif+JP:wght@400;700&family=Rajdhani:wght@500;600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
  --brand-red: #990000;
  --brand-red-light: #cc0000;
  --brand-red-dark: #660000;
  --brand-navy: #0d1b3e;
  --brand-navy-mid: #152246;
  --brand-navy-light: #1e3160;
  --accent-cyan: #00c8e8;
  --accent-magenta: #c800b4;
  --accent-teal: #00b8a0;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-light: #8888aa;
  --bg-white: #ffffff;
  --bg-light: #f8f8fc;
  --bg-section: #f2f4fa;
  --border: #e0e4f0;
  --border-light: #f0f2f8;
  --font-ja: 'Noto Sans JP', sans-serif;
  --font-serif-ja: 'Noto Serif JP', serif;
  --font-en: 'Rajdhani', sans-serif;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-ja);
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- Utility ---- */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--brand-red); margin-bottom: 12px;
}
.section-tag::before {
  content: ''; display: block; width: 24px; height: 2px;
  background: var(--brand-red);
}
.section-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700; line-height: 1.4;
  color: var(--brand-navy);
  margin-bottom: 16px;
}
.section-lead {
  font-size: 16px; color: var(--text-secondary);
  line-height: 1.8; max-width: 640px;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius);
  font-family: var(--font-ja); font-size: 15px; font-weight: 700;
  cursor: pointer; border: 2px solid transparent;
  transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: var(--brand-red); color: #fff;
  border-color: var(--brand-red);
}
.btn-primary:hover {
  background: var(--brand-red-dark); border-color: var(--brand-red-dark);
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(153,0,0,0.3);
}
.btn-outline {
  background: transparent; color: var(--brand-navy);
  border-color: var(--brand-navy);
}
.btn-outline:hover {
  background: var(--brand-navy); color: #fff;
  transform: translateY(-2px);
}
.btn-outline-white {
  background: transparent; color: #fff; border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15); border-color: #fff;
}
.btn svg { flex-shrink: 0; }


/* ================================================
   HERO SECTION
   ================================================ */
.hero {
  min-height: 100vh;
  background: var(--brand-navy);
  position: relative; overflow: hidden;
  display: flex; align-items: center;
  padding: 100px 0 60px;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,200,232,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-orb-1 {
  position: absolute; width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(153,0,0,0.3) 0%, transparent 70%);
  top: -100px; right: -100px; pointer-events: none;
}
.hero-orb-2 {
  position: absolute; width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,200,232,0.15) 0%, transparent 70%);
  bottom: 0; left: 10%; pointer-events: none;
}
.hero-content {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 100px;
  border: 1px solid rgba(0,200,232,0.4);
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--accent-cyan);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease both;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px;
  background: var(--accent-cyan); border-radius: 50%;
}
.hero-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(28px, 4.5vw, 52px);
  font-weight: 700; line-height: 1.5;
  color: #fff; margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.1s ease both;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-magenta) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 16px; color: rgba(255,255,255,0.65);
  line-height: 1.9; margin-bottom: 40px;
  animation: fadeInUp 0.8s 0.2s ease both;
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: 12px;
  animation: fadeInUp 0.8s 0.3s ease both;
}
.hero-visual {
  position: relative; z-index: 1;
  animation: fadeInRight 1s 0.2s ease both;
}
.hero-card-main {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px; backdrop-filter: blur(12px);
}
.hero-card-title {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.15em; color: var(--accent-cyan); margin-bottom: 20px;
}
.hero-cycle {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; margin-bottom: 20px;
}
.hero-cycle-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 16px;
  transition: var(--transition);
}
.hero-cycle-item:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(0,200,232,0.3);
}
.hero-cycle-num {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  color: var(--accent-cyan); opacity: 0.7; margin-bottom: 4px;
}
.hero-cycle-name {
  font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 4px;
}
.hero-cycle-desc {
  font-size: 11px; color: rgba(255,255,255,0.5); line-height: 1.6;
}
.hero-stats {
  display: flex; gap: 24px;
  padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat { text-align: center; flex: 1; }
.hero-stat-num {
  font-family: var(--font-en); font-size: 28px; font-weight: 700;
  color: #fff; line-height: 1;
}
.hero-stat-num span {
  font-size: 14px; color: var(--accent-cyan); margin-left: 2px;
}
.hero-stat-label {
  font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 4px;
}
.hero-scroll {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.4); font-size: 11px; font-family: var(--font-en);
  letter-spacing: 0.1em;
  animation: fadeIn 1s 1s ease both;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollDown 1.5s ease-in-out infinite;
}

/* ================================================
   VALUE PROPOSITION (アンチテーゼ)
   ================================================ */
.value-prop {
  padding: 100px 0;
  background: var(--bg-light);
  position: relative; overflow: hidden;
}
.value-prop-header {
  text-align: center; margin-bottom: 64px;
}
.compare-grid {
  display: grid; grid-template-columns: 1fr auto 1fr;
  gap: 0; align-items: stretch;
  max-width: 960px; margin: 0 auto;
}
.compare-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
  position: relative;
}
.compare-card.old {
  border-color: #ddd; opacity: 0.85;
}
.compare-card.new {
  border: 2px solid var(--brand-red);
  box-shadow: 0 8px 40px rgba(153,0,0,0.12);
}
.compare-label {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; margin-bottom: 20px; display: block;
}
.compare-card.old .compare-label { color: var(--text-light); }
.compare-card.new .compare-label { color: var(--brand-red); }
.compare-title {
  font-size: 18px; font-weight: 700; margin-bottom: 24px;
  color: var(--brand-navy);
}
.compare-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--border-light);
  font-size: 14px;
}
.compare-item:last-child { border-bottom: none; }
.compare-icon {
  width: 20px; height: 20px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.compare-icon.bad {
  background: #ffeee; color: #999;
  border: 1px solid #ddd; font-size: 12px;
}
.compare-icon.good {
  background: var(--brand-red); color: #fff;
  font-size: 11px; font-weight: 700;
}
.compare-divider {
  display: flex; align-items: center; justify-content: center;
  padding: 0 24px;
}
.compare-vs {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--brand-navy);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-size: 14px; font-weight: 700;
  color: #fff; flex-shrink: 0;
}
.value-tagline {
  text-align: center; margin-top: 56px;
  font-size: 20px; font-weight: 700; color: var(--brand-navy);
}
.value-tagline strong { color: var(--brand-red); }

/* ================================================
   SOLUTION FINDER (イシュー・ドリブン)
   ================================================ */
.solution-finder {
  padding: 100px 0;
  background: var(--brand-navy);
  position: relative; overflow: hidden;
}
.solution-finder::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(0,200,232,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.solution-finder .section-title { color: #fff; }
.solution-finder .section-lead { color: rgba(255,255,255,0.6); }
.solution-header { margin-bottom: 56px; position: relative; z-index: 1; }
.solution-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; position: relative; z-index: 1;
}
.solution-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); padding: 36px;
  cursor: pointer; transition: var(--transition);
  position: relative; overflow: hidden;
}
.solution-card::before {
  content: ''; position: absolute;
  inset: 0; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand-red) 0%, rgba(153,0,0,0) 60%);
  opacity: 0; transition: var(--transition);
}
.solution-card:hover {
  border-color: rgba(153,0,0,0.6);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}
.solution-card:hover::before { opacity: 0.08; }
.solution-icon {
  width: 52px; height: 52px;
  background: rgba(255,255,255,0.08); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 22px;
  transition: var(--transition);
}
.solution-card:hover .solution-icon {
  background: rgba(153,0,0,0.3);
}
.solution-sector {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--accent-cyan); margin-bottom: 8px;
}
.solution-name {
  font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px;
}
.solution-pains {
  display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px;
}
.solution-pain {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.6;
}
.pain-marker {
  color: var(--accent-cyan); flex-shrink: 0; margin-top: 2px;
  font-size: 12px;
}
.solution-link {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700; color: var(--brand-red);
  transition: var(--transition);
}
.solution-card:hover .solution-link {
  gap: 10px; color: #ff3333;
}

/* ================================================
   AI-ADAM CYCLE
   ================================================ */
.ai-cycle {
  padding: 100px 0; background: #fff;
}
.ai-cycle-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.cycle-visual {
  position: relative; aspect-ratio: 1;
  max-width: 460px;
}
.cycle-ring {
  width: 100%; height: 100%; position: relative;
}
.cycle-ring svg { width: 100%; height: 100%; }
.cycle-steps {
  display: flex; flex-direction: column; gap: 20px;
}
.cycle-step {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 20px 24px; border-radius: var(--radius);
  border: 1px solid var(--border); background: #fff;
  transition: var(--transition); cursor: pointer;
}
.cycle-step:hover, .cycle-step.active {
  border-color: var(--brand-red);
  box-shadow: var(--shadow-md);
  background: rgba(153,0,0,0.02);
}
.cycle-step-num {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--bg-section); color: var(--text-light);
  font-family: var(--font-en); font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: var(--transition);
}
.cycle-step:hover .cycle-step-num, .cycle-step.active .cycle-step-num {
  background: var(--brand-red); color: #fff;
}
.cycle-step-content { flex: 1; }
.cycle-step-name {
  font-size: 15px; font-weight: 700; color: var(--brand-navy);
  margin-bottom: 4px;
}
.cycle-step-desc {
  font-size: 13px; color: var(--text-secondary); line-height: 1.6;
}
.cycle-badges {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px;
}
.cycle-badge {
  padding: 6px 14px; border-radius: 100px;
  background: var(--bg-section); border: 1px solid var(--border);
  font-size: 12px; font-weight: 700; color: var(--text-secondary);
}

/* ================================================
   TRUST / 40年の実績
   ================================================ */
.trust {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--brand-navy) 0%, var(--brand-navy-light) 100%);
  position: relative; overflow: hidden;
}
.trust-bg-text {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-en); font-size: 200px; font-weight: 700;
  color: rgba(255,255,255,0.02); white-space: nowrap;
  pointer-events: none; letter-spacing: -0.05em;
}
.trust-header {
  text-align: center; margin-bottom: 64px; position: relative; z-index: 1;
}
.trust-header .section-title { color: #fff; }
.trust-header .section-lead { color: rgba(255,255,255,0.6); margin: 0 auto; }
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; position: relative; z-index: 1;
  margin-bottom: 56px;
}
.trust-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); padding: 28px;
  text-align: center; transition: var(--transition);
}
.trust-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(153,0,0,0.4);
  transform: translateY(-4px);
}
.trust-card-num {
  font-family: var(--font-en); font-size: 48px; font-weight: 700;
  color: #fff; line-height: 1; margin-bottom: 4px;
}
.trust-card-num span {
  font-size: 22px; color: var(--brand-red); margin-left: 2px;
}
.trust-card-label {
  font-size: 13px; color: rgba(255,255,255,0.6);
}
.trust-logos {
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: center; position: relative; z-index: 1;
}
.trust-logo-item {
  padding: 12px 24px; border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.75);
  transition: var(--transition);
}
.trust-logo-item:hover {
  background: rgba(255,255,255,0.12); color: #fff;
}
.trust-certs {
  display: flex; justify-content: center; gap: 16px;
  margin-top: 40px; position: relative; z-index: 1;
}
.trust-cert {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.7);
}
.cert-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-cyan); flex-shrink: 0;
}

/* ================================================
   DATA GAKUJUKU (データ活用塾)
   ================================================ */
.gakujuku {
  padding: 100px 0; background: var(--bg-section);
}
.gakujuku-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.gakujuku-stages {
  display: flex; flex-direction: column; gap: 16px;
}
.gakujuku-stage {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 24px; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border); transition: var(--transition);
}
.gakujuku-stage:hover {
  border-color: var(--brand-red); box-shadow: var(--shadow-md);
}
.stage-icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.stage-icon.entry { background: rgba(0,200,232,0.1); }
.stage-icon.practice { background: rgba(153,0,0,0.1); }
.stage-icon.mastery { background: rgba(13,27,62,0.1); }
.stage-level {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; margin-bottom: 4px;
}
.stage-level.entry { color: var(--accent-teal); }
.stage-level.practice { color: var(--brand-red); }
.stage-level.mastery { color: var(--brand-navy); }
.stage-name {
  font-size: 16px; font-weight: 700; color: var(--brand-navy);
  margin-bottom: 6px;
}
.stage-desc {
  font-size: 13px; color: var(--text-secondary); line-height: 1.6;
}

/* ================================================
   NEWS / TOPICS
   ================================================ */
.news {
  padding: 80px 0; background: #fff;
}
.news-inner {
  display: grid; grid-template-columns: 260px 1fr;
  gap: 64px; align-items: start;
}
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-item {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 20px 0; border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.news-item:hover { padding-left: 8px; }
.news-meta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.news-date {
  font-family: var(--font-en); font-size: 13px; color: var(--text-light);
  white-space: nowrap;
}
.news-cat {
  padding: 2px 10px; border-radius: 100px;
  font-size: 11px; font-weight: 700; white-space: nowrap;
}
.news-cat.product { background: rgba(153,0,0,0.1); color: var(--brand-red); }
.news-cat.solution { background: rgba(0,200,232,0.1); color: #0088aa; }
.news-cat.info { background: var(--bg-section); color: var(--text-secondary); }
.news-title {
  font-size: 14px; color: var(--text-primary); line-height: 1.6;
  transition: var(--transition);
}
.news-item:hover .news-title { color: var(--brand-red); }

/* ================================================
   CTA BANNER
   ================================================ */
.cta-banner {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--brand-red-dark) 0%, var(--brand-red) 100%);
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(255,255,255,0.08), transparent 60%);
}
.cta-banner-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; position: relative; z-index: 1;
}
.cta-banner-text {}
.cta-banner-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(22px, 3vw, 32px); font-weight: 700;
  color: #fff; line-height: 1.5; margin-bottom: 12px;
}
.cta-banner-desc { font-size: 15px; color: rgba(255,255,255,0.75); }
.cta-banner-actions { display: flex; gap: 12px; flex-shrink: 0; }

/* ================================================
   ANIMATIONS
   ================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(28px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scrollDown {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(1.4); opacity: 0.5; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Scroll reveal */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-divider { padding: 16px 0; }
  .compare-vs { width: 40px; height: 40px; }
  .solution-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-nav-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 88px 0 60px; }
  .solution-grid { grid-template-columns: 1fr; }
  .ai-cycle-inner { grid-template-columns: 1fr; }
  .gakujuku-inner { grid-template-columns: 1fr; }
  .news-inner { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .cta-banner-actions { justify-content: center; flex-wrap: wrap; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-nav-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-stats { gap: 16px; }
  .trust-certs { flex-wrap: wrap; justify-content: center; }
}

/* Mobile menu */
.mobile-menu {
  display: none; position: fixed;
  top: 68px; left: 0; right: 0; bottom: 0;
  background: #fff; z-index: 999;
  padding: 24px; overflow-y: auto;
}
.mobile-menu.open { display: block; }
.mobile-nav-list { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav-link {
  display: block; padding: 14px 16px;
  font-size: 16px; font-weight: 500; color: var(--text-primary);
  border-radius: var(--radius); transition: var(--transition);
  border-bottom: 1px solid var(--border-light);
}
.mobile-nav-link:hover { background: var(--bg-section); color: var(--brand-red); }
.mobile-cta {
  margin-top: 24px;
  display: flex; flex-direction: column; gap: 12px;
}


/* ================================================
   AI-ADAM CYCLE DETAIL PAGE ? ADDITIONAL STYLES
   ================================================ */

/* ---- Page Hero (Concept Header) ---- */
.page-hero {
  min-height: 72vh;
  background: var(--brand-navy);
  display: flex; align-items: center;
  padding: 120px 0 80px;
  position: relative; overflow: hidden;
}
.page-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,200,232,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-hero-orb {
  position: absolute; border-radius: 50%;
  pointer-events: none;
}
.page-hero-orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(153,0,0,0.25) 0%, transparent 65%);
  top: -200px; right: -200px;
}
.page-hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,200,232,0.12) 0%, transparent 65%);
  bottom: -100px; left: 5%;
}
.page-hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.page-hero-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,0.4);
  margin-bottom: 24px; font-family: var(--font-en);
  letter-spacing: 0.05em;
}
.page-hero-breadcrumb a { color: rgba(255,255,255,0.4); transition: var(--transition); }
.page-hero-breadcrumb a:hover { color: var(--accent-cyan); }
.page-hero-breadcrumb span { color: rgba(255,255,255,0.2); }
.page-hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 100px;
  border: 1px solid rgba(0,200,232,0.35);
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--accent-cyan);
  margin-bottom: 20px;
}
.page-hero-eyebrow::before {
  content: ''; width: 6px; height: 6px;
  background: var(--accent-cyan); border-radius: 50%;
  animation: pulse 1.8s ease-in-out infinite;
}
.page-hero-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(26px, 3.8vw, 46px);
  font-weight: 700; line-height: 1.55;
  color: #fff; margin-bottom: 20px;
  animation: fadeInUp 0.8s ease both;
}
.page-hero-title strong {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero-lead {
  font-size: 15px; line-height: 1.9;
  color: rgba(255,255,255,0.65); margin-bottom: 36px;
  animation: fadeInUp 0.8s 0.15s ease both;
}
.page-hero-compare {
  display: grid; grid-template-columns: 1fr 40px 1fr;
  gap: 0; align-items: center;
  animation: fadeInUp 0.8s 0.2s ease both;
}
.hero-compare-card {
  padding: 20px; border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
}
.hero-compare-card.old-way { opacity: 0.7; }
.hero-compare-card.new-way {
  border-color: rgba(153,0,0,0.5);
  background: rgba(153,0,0,0.08);
}
.hero-compare-label {
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; margin-bottom: 10px;
}
.hero-compare-card.old-way .hero-compare-label { color: rgba(255,255,255,0.35); }
.hero-compare-card.new-way .hero-compare-label { color: var(--brand-red); }
.hero-compare-title {
  font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.hero-compare-list { display: flex; flex-direction: column; gap: 7px; }
.hero-compare-item {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,0.55); line-height: 1.5;
}
.hero-compare-item .ci-icon { flex-shrink: 0; margin-top: 1px; font-size: 11px; }
.hero-compare-item.neg .ci-icon { color: rgba(255,255,255,0.3); }
.hero-compare-item.pos .ci-icon { color: var(--accent-cyan); }
.hero-compare-item.pos { color: rgba(255,255,255,0.8); }
.hero-compare-vs {
  display: flex; align-items: center; justify-content: center;
}
.compare-vs-badge {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--brand-red); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
}

/* ---- Sticky Nav (Section TOC) ---- */
.sticky-toc {
  position: sticky; top: 68px; z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.sticky-toc-inner {
  display: flex; align-items: center; gap: 4px;
  height: 52px; overflow-x: auto;
  scrollbar-width: none;
}
.sticky-toc-inner::-webkit-scrollbar { display: none; }
.toc-item {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 100px;
  font-size: 13px; font-weight: 500;
  color: var(--text-secondary); white-space: nowrap;
  cursor: pointer; transition: var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
}
.toc-item:hover { color: var(--brand-red); background: rgba(153,0,0,0.05); }
.toc-item.active {
  color: var(--brand-red); background: rgba(153,0,0,0.06);
  border-color: rgba(153,0,0,0.2);
}
.toc-item-num {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--bg-section); border: 1px solid var(--border);
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: var(--transition);
}
.toc-item.active .toc-item-num {
  background: var(--brand-red); color: #fff; border-color: var(--brand-red);
}

/* ---- Section: Data to Wisdom Pyramid ---- */
.wisdom-section {
  padding: 100px 0; background: var(--bg-light);
}
.wisdom-section-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.wisdom-pyramid { position: relative; }
.pyramid-svg { width: 100%; max-width: 460px; margin: 0 auto; display: block; }
.wisdom-layers {
  display: flex; flex-direction: column; gap: 16px;
}
.wisdom-layer {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 20px 24px; border-radius: var(--radius);
  border: 1px solid var(--border); background: #fff;
  transition: var(--transition); cursor: pointer;
  position: relative; overflow: hidden;
}
.wisdom-layer::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; border-radius: 3px 0 0 3px;
  transition: var(--transition);
}
.wisdom-layer.data::before { background: #64748b; }
.wisdom-layer.info::before { background: var(--accent-teal); }
.wisdom-layer.knowledge::before { background: #7c3aed; }
.wisdom-layer.wisdom-lv::before { background: var(--brand-red); }
.wisdom-layer:hover, .wisdom-layer.active {
  box-shadow: var(--shadow-md); border-color: transparent;
}
.wisdom-layer.data:hover, .wisdom-layer.data.active { border-color: #64748b; background: rgba(100,116,139,0.04); }
.wisdom-layer.info:hover, .wisdom-layer.info.active { border-color: var(--accent-teal); background: rgba(0,184,160,0.04); }
.wisdom-layer.knowledge:hover, .wisdom-layer.knowledge.active { border-color: #7c3aed; background: rgba(124,58,237,0.04); }
.wisdom-layer.wisdom-lv:hover, .wisdom-layer.wisdom-lv.active { border-color: var(--brand-red); background: rgba(153,0,0,0.04); }
.wisdom-layer-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.wisdom-layer.data .wisdom-layer-icon { background: rgba(100,116,139,0.1); }
.wisdom-layer.info .wisdom-layer-icon { background: rgba(0,184,160,0.1); }
.wisdom-layer.knowledge .wisdom-layer-icon { background: rgba(124,58,237,0.1); }
.wisdom-layer.wisdom-lv .wisdom-layer-icon { background: rgba(153,0,0,0.1); }
.wisdom-layer-label {
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.12em; margin-bottom: 3px;
}
.wisdom-layer.data .wisdom-layer-label { color: #64748b; }
.wisdom-layer.info .wisdom-layer-label { color: var(--accent-teal); }
.wisdom-layer.knowledge .wisdom-layer-label { color: #7c3aed; }
.wisdom-layer.wisdom-lv .wisdom-layer-label { color: var(--brand-red); }
.wisdom-layer-name { font-size: 15px; font-weight: 700; color: var(--brand-navy); margin-bottom: 4px; }
.wisdom-layer-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.wisdom-engine {
  display: flex; align-items: center; gap: 8px;
  margin-top: 6px; font-size: 12px;
}
.engine-badge {
  padding: 2px 8px; border-radius: 4px;
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.05em;
}
.engine-badge.zadam { background: rgba(0,184,160,0.15); color: var(--accent-teal); }
.engine-badge.ai { background: rgba(124,58,237,0.15); color: #7c3aed; }
.engine-badge.human { background: rgba(153,0,0,0.15); color: var(--brand-red); }

/* ---- Section: 5 Steps Detail ---- */
.steps-section {
  padding: 100px 0; background: #fff;
}
.steps-header { text-align: center; margin-bottom: 64px; }
.steps-header .section-lead { margin: 0 auto; }
.steps-flow {
  display: flex; flex-direction: column; gap: 0;
  max-width: 900px; margin: 0 auto;
}
.step-row {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 0; align-items: stretch;
  position: relative;
}
.step-spine {
  display: flex; flex-direction: column; align-items: center;
  position: relative;
}
.step-dot {
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; z-index: 1;
  font-family: var(--font-en); font-size: 14px; font-weight: 700;
  border: 2px solid;
  transition: var(--transition);
}
.step-dot.s1 { background: rgba(153,0,0,0.08); border-color: var(--brand-red); color: var(--brand-red); }
.step-dot.s2 { background: rgba(200,0,80,0.08); border-color: #c80050; color: #c80050; }
.step-dot.s3 { background: rgba(80,0,200,0.08); border-color: #5000c8; color: #5000c8; }
.step-dot.s4 { background: rgba(0,96,200,0.08); border-color: #0060c8; color: #0060c8; }
.step-dot.s5 { background: rgba(0,128,96,0.08); border-color: #008060; color: #008060; }
.step-line {
  width: 2px; flex: 1; min-height: 32px;
  background: linear-gradient(to bottom, var(--border), var(--border-light));
  margin: 4px 0;
}
.step-row:last-child .step-line { display: none; }
.step-body {
  padding: 0 0 48px 32px;
}
.step-row:last-child .step-body { padding-bottom: 0; }
.step-header-row {
  display: flex; align-items: center; gap: 12px;
  padding-top: 12px; margin-bottom: 16px;
}
.step-num-label {
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--text-light);
}
.step-who {
  display: flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 100px;
  font-size: 11px; font-weight: 700;
  background: var(--bg-section); border: 1px solid var(--border);
  color: var(--text-secondary);
}
.step-who-dot { width: 6px; height: 6px; border-radius: 50%; }
.step-name {
  font-family: var(--font-serif-ja);
  font-size: 22px; font-weight: 700; color: var(--brand-navy);
  margin-bottom: 12px;
}
.step-desc {
  font-size: 15px; color: var(--text-secondary);
  line-height: 1.85; margin-bottom: 20px; max-width: 100%;
}
.step-detail-card {
  background: var(--bg-section); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.step-detail-item { display: flex; gap: 12px; align-items: flex-start; }
.step-detail-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: #fff; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; flex-shrink: 0;
}
.step-detail-label { font-size: 12px; font-weight: 700; color: var(--brand-navy); margin-bottom: 2px; }
.step-detail-text { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }
.step-highlight {
  margin-top: 16px; padding: 14px 18px;
  background: var(--brand-navy); border-radius: var(--radius);
  font-size: 13px; font-weight: 700; color: #fff;
  display: flex; align-items: center; gap: 10px;
}
.step-highlight svg { flex-shrink: 0; }

/* ---- Section: Architecture (MCP Bridge) ---- */
.arch-section {
  padding: 100px 0;
  background: var(--brand-navy);
  position: relative; overflow: hidden;
}
.arch-section::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,200,232,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.arch-section .section-title { color: #fff; }
.arch-section .section-lead { color: rgba(255,255,255,0.6); }
.arch-header { margin-bottom: 56px; position: relative; z-index: 1; }
.arch-diagram {
  display: grid; grid-template-columns: 1fr 120px 1fr;
  gap: 0; align-items: center;
  max-width: 900px; margin: 0 auto 48px;
  position: relative; z-index: 1;
}
.arch-block {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg); padding: 28px;
}
.arch-block.onprem { border-color: rgba(0,200,232,0.3); }
.arch-block.cloud { border-color: rgba(153,0,0,0.3); }
.arch-block-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 4px;
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; margin-bottom: 14px;
}
.arch-block.onprem .arch-block-badge { background: rgba(0,200,232,0.15); color: var(--accent-cyan); }
.arch-block.cloud .arch-block-badge { background: rgba(153,0,0,0.2); color: #ff6666; }
.arch-block-title { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.arch-block-items { display: flex; flex-direction: column; gap: 8px; }
.arch-block-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: rgba(255,255,255,0.65);
}
.abi { width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0; }
.abi.cyan { background: var(--accent-cyan); }
.abi.red { background: var(--brand-red); }
.arch-bridge {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 8px;
}
.arch-bridge-label {
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.08em; color: rgba(255,255,255,0.4);
  writing-mode: vertical-lr; text-orientation: mixed;
}
.arch-bridge-pipe {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 16px 8px;
}
.arch-bridge-flow {
  display: flex; flex-direction: column; gap: 6px; align-items: center;
}
.bridge-packet {
  width: 36px; height: 18px; border-radius: 4px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  position: relative; display: flex; align-items: center; justify-content: center;
}
.bridge-packet span {
  font-size: 8px; font-family: var(--font-en); font-weight: 700;
  color: rgba(255,255,255,0.5);
}
.arch-bridge-arrow {
  color: rgba(255,255,255,0.3); font-size: 16px;
}
.arch-benefits {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; position: relative; z-index: 1;
}
.arch-benefit {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius); padding: 24px;
  text-align: center;
}
.arch-benefit-icon { font-size: 28px; margin-bottom: 10px; }
.arch-benefit-title {
  font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 6px;
}
.arch-benefit-desc { font-size: 12px; color: rgba(255,255,255,0.55); line-height: 1.65; }

/* ---- Section: Use Cases ---- */
.usecase-section {
  padding: 100px 0; background: var(--bg-section);
}
.usecase-tabs {
  display: flex; gap: 0; margin-bottom: 48px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: #fff; width: fit-content;
}
.usecase-tab {
  padding: 12px 28px; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: var(--transition); border: none;
  background: transparent; border-radius: calc(var(--radius) - 1px);
  color: var(--text-secondary);
}
.usecase-tab.active {
  background: var(--brand-red); color: #fff;
}
.usecase-panel { display: none; }
.usecase-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.usecase-story { }
.usecase-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 4px;
  font-size: 11px; font-weight: 700;
  background: rgba(153,0,0,0.1); color: var(--brand-red);
  margin-bottom: 16px;
}
.usecase-title { font-family: var(--font-serif-ja); font-size: 22px; font-weight: 700; color: var(--brand-navy); margin-bottom: 16px; line-height: 1.5; }
.usecase-persona {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 20px;
}
.persona-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-section); display: flex; align-items: center;
  justify-content: center; font-size: 18px; flex-shrink: 0;
}
.persona-name { font-size: 13px; font-weight: 700; color: var(--brand-navy); }
.persona-pain {
  font-size: 12px; color: var(--text-secondary);
  border-left: 2px solid var(--brand-red); padding-left: 8px; margin-top: 4px;
}
.usecase-flow { display: flex; flex-direction: column; gap: 12px; }
.uf-step {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 16px; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: var(--transition);
}
.uf-step:hover { border-color: var(--brand-red); box-shadow: var(--shadow-sm); }
.uf-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--brand-red); color: #fff;
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.uf-content { flex: 1; }
.uf-label { font-size: 11px; font-weight: 700; color: var(--text-light); margin-bottom: 2px; }
.uf-text { font-size: 13px; color: var(--text-primary); line-height: 1.6; }
.uf-result {
  margin-top: 12px; padding: 12px 16px;
  background: rgba(153,0,0,0.06); border: 1px solid rgba(153,0,0,0.15);
  border-radius: var(--radius); font-size: 13px; font-weight: 700;
  color: var(--brand-red); display: flex; align-items: center; gap: 8px;
}
.usecase-metrics {
  display: flex; flex-direction: column; gap: 16px;
}
.metric-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  transition: var(--transition);
}
.metric-card:hover { box-shadow: var(--shadow-md); }
.metric-card-title {
  font-size: 13px; font-weight: 700; color: var(--text-secondary); margin-bottom: 12px;
}
.metric-value {
  font-family: var(--font-en); font-size: 40px; font-weight: 700;
  color: var(--brand-navy); line-height: 1;
}
.metric-value span { font-size: 18px; color: var(--brand-red); margin-left: 2px; }
.metric-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.metric-bar {
  margin-top: 12px; height: 6px; background: var(--bg-section);
  border-radius: 3px; overflow: hidden;
}
.metric-bar-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--brand-red), var(--brand-red-light));
}

/* ---- Section: Integration / Co-existence ---- */
.integration-section {
  padding: 100px 0; background: #fff;
}
.integration-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.integration-features { display: flex; flex-direction: column; gap: 20px; }
.integration-feature {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 24px; border: 1px solid var(--border);
  border-radius: var(--radius); background: #fff;
  transition: var(--transition);
}
.integration-feature:hover {
  border-color: var(--brand-red); box-shadow: var(--shadow-md);
  background: rgba(153,0,0,0.015);
}
.if-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--bg-section); display: flex; align-items: center;
  justify-content: center; font-size: 22px; flex-shrink: 0;
  transition: var(--transition);
}
.integration-feature:hover .if-icon { background: rgba(153,0,0,0.1); }
.if-title { font-size: 15px; font-weight: 700; color: var(--brand-navy); margin-bottom: 6px; }
.if-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.65; }
.integration-visual { position: relative; }
.integration-diagram {
  background: var(--brand-navy); border-radius: var(--radius-lg);
  padding: 32px;
}
.int-flow-label {
  font-family: var(--font-en); font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; color: rgba(255,255,255,0.4); margin-bottom: 20px;
}
.int-flow {
  display: flex; flex-direction: column; gap: 4px;
}
.int-flow-row {
  display: flex; align-items: center; gap: 8px; padding: 4px 0;
}
.int-node {
  padding: 8px 14px; border-radius: var(--radius);
  font-size: 12px; font-weight: 700; flex-shrink: 0;
}
.int-node.input { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8); border: 1px solid rgba(255,255,255,0.1); }
.int-node.engine { background: var(--brand-red); color: #fff; }
.int-node.output { background: rgba(0,200,232,0.15); color: var(--accent-cyan); border: 1px solid rgba(0,200,232,0.2); }
.int-arrow { color: rgba(255,255,255,0.3); font-size: 14px; flex-shrink: 0; }
.int-flow-divider { height: 1px; background: rgba(255,255,255,0.06); margin: 8px 0; }
.int-badge-row {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px;
}
.int-badge {
  padding: 5px 12px; border-radius: 4px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  font-size: 11px; font-weight: 700; color: rgba(255,255,255,0.6);
}

/* ---- Section: CTA (Page Bottom) ---- */
.page-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--brand-navy) 0%, var(--brand-navy-light) 100%);
  position: relative; overflow: hidden;
}
.page-cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 40%, rgba(153,0,0,0.2), transparent 60%);
}
.page-cta-inner {
  position: relative; z-index: 1; text-align: center;
}
.page-cta-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700; color: #fff; margin-bottom: 16px;
  line-height: 1.5;
}
.page-cta-desc {
  font-size: 16px; color: rgba(255,255,255,0.65);
  line-height: 1.8; margin-bottom: 48px; max-width: 560px; margin-left: auto; margin-right: auto;
}
.page-cta-actions {
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: center;
}
.page-cta .btn {
  padding: 16px 32px; font-size: 15px;
}

/* ---- Responsive additions ---- */
@media (max-width: 1024px) {
  .page-hero-inner { grid-template-columns: 1fr; }
  .wisdom-section-inner { grid-template-columns: 1fr; }
  .usecase-panel.active { grid-template-columns: 1fr; }
  .arch-diagram { grid-template-columns: 1fr; }
  .arch-bridge { flex-direction: row; }
  .arch-bridge-label { writing-mode: horizontal-tb; }
  .integration-inner { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .step-detail-card { grid-template-columns: 1fr; }
  .arch-benefits { grid-template-columns: 1fr 1fr; }
  .page-hero-compare { grid-template-columns: 1fr; }
  .hero-compare-vs { display: none; }
}