/* ================================================
   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: 880px;
}
.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; }

/* ================================================
   HEADER / NAVIGATION
   ================================================ */
.header {
  /*position: fixed;*/position:sticky; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex; align-items: center;
  height: 68px; gap: 32px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 40px; height: 40px; background: var(--brand-red);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
}
.logo-mark svg { fill: #fff; }
.logo-text-ja {
  font-family: var(--font-ja); font-weight: 700; font-size: 14px;
  color: var(--brand-navy); line-height: 1.3;
}
.logo-text-en {
  font-family: var(--font-en); font-size: 10px; font-weight: 600;
  letter-spacing: 0.08em; color: var(--text-light); display: block;
}
.nav {
  flex: 1; display: flex; align-items: center; justify-content: center;
}
.nav-list {
  display: flex; align-items: center; gap: 4px;
}
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px; border-radius: var(--radius);
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition); white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--brand-red); background: rgba(153,0,0,0.05);
}
.nav-link svg { transition: var(--transition); }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }
.dropdown {
  position: absolute;/* top: calc(100% + 8px);*/top:100%; left: 50%;
  transform: translateX(-50%);
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  min-width: 200px; padding: 8px 0;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: var(--transition);
}
.nav-item:hover .dropdown {
  opacity: 1; visibility: visible; pointer-events: all;
}
.dropdown-link {
  display: block; padding: 10px 20px;
  font-size: 13px; color: var(--text-secondary);
  transition: var(--transition);
}
.dropdown-link:hover {
  background: rgba(153,0,0,0.05); color: var(--brand-red);
  padding-left: 20px;
}
.header-cta {
  flex-shrink: 0; display: flex; align-items: center; gap: 12px;
}
.cta-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius);
  font-size: 13px; font-weight: 700;
  background: var(--brand-red); color: #fff;
  transition: var(--transition);
}
.cta-btn:hover {
  background: var(--brand-red-dark);
  box-shadow: 0 4px 16px rgba(153,0,0,0.35);
}
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px; border: none; background: none;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--brand-navy); border-radius: 2px;
  transition: var(--transition);
}

/* ================================================
   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: 1.09fr 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; }

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--brand-navy); color: rgba(255,255,255,0.65);
  padding: 64px 0 0;
}
.footer-top {
  display: grid; grid-template-columns: 280px 1fr;
  gap: 64px; padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand { }
.footer-logo {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.footer-logo-mark {
 /* width: 36px; height: 36px; background: var(--brand-red);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;*/
}
.footer-company { font-size: 14px; font-weight: 700; color: #fff; }
.footer-company small { display: block; font-size: 11px; color: rgba(255,255,255,0.4); font-weight: 400; margin-top: 2px; }
.footer-tagline { font-size: 13px; line-height: 1.7; margin-bottom: 20px; }
.footer-iso {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.footer-iso-badge {
  padding: 4px 12px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 11px; font-weight: 700; color: rgba(255,255,255,0.6);
}
.footer-nav-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.footer-nav-group h4 {
  font-size: 13px; font-weight: 700; color: #fff;
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-nav-list { display: flex; flex-direction: column; gap: 8px; }
.footer-nav-link {
  font-size: 12px; color: rgba(255,255,255,0.5); transition: var(--transition);
}
.footer-nav-link:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 12px; }
.footer-links { display: flex; gap: 20px; }
.footer-link { font-size: 12px; transition: var(--transition); }
.footer-link:hover { color: #fff; }



img {
  /* 画像の拡大・縮小時に滑らかにせず、エッジをくっきりさせる */
  /*image-rendering: -webkit-optimize-contrast; /* Safari用 */
  /*image-rendering: crisp-edges;*/
}

/* ================================================
   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;
}


/* -----------------------------------------------
   パンくずリスト（トップメニューデザインに合わせたスタイル）
----------------------------------------------- */

/* -----------------------------------------------
   パンくずリスト
   style.css の #plist 定義に合わせてコンテナ幅内に整列
----------------------------------------------- */
#plist {
    width: 100%;
    background-color: #f5f5f5;
    border-bottom: 1px solid var(--border, #e0e4f0);
    padding: 8px 0;
    box-sizing: border-box;
}

#plist .container {
    padding: 0 24px;
}

#plist ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    font-size: 13px;
}

#plist ol li {
    display: flex;
    align-items: center;
    color: #555;
}

#plist ol li + li::before {
    content: ">";
    margin: 0 6px;
    color: #aaa;
    font-size: 15px;
    line-height: 1;
}

#plist ol li a {
    color: var(--brand-red, #990000);
    text-decoration: none;
    transition: color 0.2s;
}

#plist ol li a:hover {
    color: var(--brand-red-dark, #660000);
    text-decoration: underline;
}

#plist ol li:last-child {
    color: var(--text-primary, #1a1a2e);
    font-weight: 700;
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
}
/* -----------------------------------------------
   ページヘッダー
----------------------------------------------- */
.page-hero {
    background: var(--brand-navy, #0d1b3e);
    padding: 56px 0 48px;
    position: relative;
    overflow: hidden;
}


.page-hero::before {
    content: '';
    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;
    pointer-events: none;
}

.page-hero .section-tag {
    color: var(--accent-cyan, #00c8e8);
    position: relative;
}

.page-hero .section-tag::before {
    background: var(--accent-cyan, #00c8e8);
}

.page-hero__title {
    font-family: var(--font-serif-ja, 'Noto Serif JP', serif);
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    color: #fff;
    margin: 0 0 16px;
    line-height: 1.4;
    position: relative;
}

.page-hero__lead {
    font-size: 15px;
    color: rgba(255,255,255,0.72);
    line-height: 1.8;
    max-width: 640px;
    position: relative;
}

/* ================================================
   HERO BACKGROUND PHOTO (追記: 実写背景 + オーバーレイ)
   既存の .hero / .hero-bg-grid / .hero-orb-1 / .hero-orb-2 の
   宣言は変更せず、新規レイヤーとして追記する。
   ================================================ */
.hero-bg-photo {
  position: absolute; top: 0; bottom: 0; right: 0; left: 26%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.5) 18%, #000 42%);
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.5) 18%, #000 42%);
}
.hero-bg-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 0% 28%;
  transform: scaleX(-1);
  filter: saturate(0.82) contrast(1.06) brightness(0.92);
}
.hero-bg-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg,
      rgba(13,27,62,0.94) 0%,
      rgba(13,27,62,0.88) 30%,
      rgba(13,27,62,0.62) 58%,
      rgba(13,27,62,0.40) 100%),
    linear-gradient(0deg,
      rgba(13,27,62,0.55) 0%,
      rgba(13,27,62,0.05) 30%,
      rgba(13,27,62,0.05) 70%,
      rgba(13,27,62,0.5) 100%);
}

/* グリッド/オーブは写真の上に乗る「アクセント」として、
   スクリーン合成にして光の質感に馴染ませる */
.hero-bg-grid {
  mix-blend-mode: screen;
}
.hero-orb-1,
.hero-orb-2 {
  mix-blend-mode: screen;
  opacity: 0.85;
}

/* 写真背景時の可読性を少し補強 */
.hero-title,
.hero-sub {
  text-shadow: 0 2px 16px rgba(13,27,62,0.5);
}

@media (max-width: 1024px) {
  /* hero-visual が非表示になり全幅テキストになるため、
     オーバーレイを均一に暗くして可読性を確保 */
  .hero-bg-overlay {
    background:
      linear-gradient(180deg,
        rgba(13,27,62,0.92) 0%,
        rgba(13,27,62,0.86) 50%,
        rgba(13,27,62,0.90) 100%);
  }
  /* 右寄せの余白が勿体無いので写真パネルを広げる */
  .hero-bg-photo {
    left: 8%;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.5) 10%, #000 30%);
    mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.5) 10%, #000 30%);
  }
}


/* ================================================
   HERO BACKGROUND PHOTO (追記: 実写背景 + オーバーレイ)
   事例・実績、企業情報、サポート、データ活用塾等の背景用
   ================================================ */

.page-hero-bg-photo {
  position: absolute; inset: 0;
  overflow: hidden;
  z-index: 0;
}
.page-hero-bg-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: var(--hero-photo-pos, 50% 50%);
  filter: saturate(0.82) contrast(1.06) brightness(0.92);
}
.page-hero-bg-overlay {
  position: absolute; inset: 0;
  z-index: 1;
  background: linear-gradient(100deg,
    rgba(13,27,62,0.93) 0%,
    rgba(13,27,62,0.85) 35%,
    rgba(13,27,62,0.55) 65%,
    rgba(13,27,62,0.35) 100%);
}
.page-hero .section-tag,
.page-hero__title,
.page-hero__lead {
  z-index: 2;
}
.page-hero__title,
.page-hero__lead {
  text-shadow: 0 2px 16px rgba(13,27,62,0.55);
}