@charset "UTF-8";
/* ============================================================
   Human-Centric Intelligence LP — 本番実装用CSS
   Template: Human-Centric-Intelligence/Human-Centric-Intelligence.php
   Prefix: hci-
   Root Wrapper: #hci-root
   Theme: cocoon-child-master
   ============================================================ */

/* ============================================================
   CSS Variables
   ============================================================ */
#hci-root {
  --hci-bg-void:#05060f;
  --hci-bg-deep:#0a1128;
  --hci-bg-mid:#111a3a;
  --hci-ink-primary:#e8ecf5;
  --hci-ink-secondary:#a8b2c8;
  --hci-ink-muted:#6b7590;
  --hci-cyan:#00d9ff;
  --hci-cyan-soft:#4de8ff;
  --hci-warm:#ff6b6b;
  --hci-warm-soft:#ffb4b4;
  --hci-gold:#f4c430;
  --hci-violet:#a78bfa;
  --hci-gradient-flow:linear-gradient(135deg,#00d9ff 0%,#a78bfa 50%,#ff6b6b 100%);
  --hci-gradient-stellar:linear-gradient(180deg,rgba(0,217,255,0.15) 0%,rgba(10,17,40,0) 100%);
  --hci-border-glow:rgba(0,217,255,0.25);
  --hci-bg-card:rgba(255,255,255,0.03);
  --hci-card-border:rgba(255,255,255,0.08);
  --hci-shadow-cyan:0 0 40px rgba(0,217,255,0.15);
  --hci-shadow-warm:0 0 40px rgba(255,107,107,0.15);
  --hci-text:var(--hci-ink-primary);
  --hci-font-jp:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --hci-font-serif:"Noto Serif JP","Yu Mincho",serif;
  --hci-font-mono:"JetBrains Mono","SF Mono",Consolas,monospace;
}

/* ============================================================
   HTML / Body Base
   ============================================================ */
html.hci-html { scroll-behavior:smooth; scroll-padding-top:96px; }
@media (max-width: 768px) {
  html.hci-html { scroll-padding-top:72px; }
}
body.hci-body {
  font-family: var(--hci-font-jp, "Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif);
  background: #05060f !important;
  color: #e8ecf5;
  line-height: 1.85;
  overflow-x: hidden;
  font-feature-settings: "palt";
  letter-spacing: 0.02em;
  margin: 0;
  padding: 0;
}

/* ============================================================
   #hci-root Reset & Base
   ============================================================ */
:where(#hci-root, #hci-root *) {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
#hci-root {
  font-family: var(--hci-font-jp);
  color: var(--hci-ink-primary);
  line-height: 1.85;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

/* ============================================================
   ★★★ Cocoon リセット（仕様書 Section 5.8 / 5.9 / 5.12 準拠）★★★
   省略・要約・簡略化を一切許容しない完全リセット
   ============================================================ */

/* --- 5.8 テーブルストライプ完全リセット --- */
#hci-root .entry-content table tr,
#hci-root .entry-content table tr:nth-of-type(even),
#hci-root .entry-content table tr:nth-of-type(odd),
#hci-root table tr,
#hci-root table tr:nth-of-type(even),
#hci-root table tr:nth-of-type(odd) {
  background-color: var(--hci-bg-card) !important;
  color: var(--hci-text) !important;
}
#hci-root .entry-content table,
#hci-root table {
  background-color: transparent !important;
  border-collapse: collapse !important;
  width: 100% !important;
}
#hci-root .entry-content table th,
#hci-root .entry-content table td,
#hci-root table th,
#hci-root table td {
  background-color: transparent !important;
  color: var(--hci-text) !important;
  border-color: var(--hci-card-border) !important;
}

/* --- 5.9 中央配置 Flexbox ラッパー（margin:auto ではなく Flex） --- */
.hci-align-center-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 40px 0;
}

/* --- 5.12 リストマーカー干渉排除 --- */
#hci-root .entry-content ul,
#hci-root .entry-content ol,
#hci-root ul,
#hci-root ol {
  list-style: none !important;
  padding-left: 0 !important;
  margin-left: 0 !important;
}
#hci-root .entry-content li::before,
#hci-root .entry-content li::after,
#hci-root li::before,
#hci-root li::after {
  content: none !important;
}
#hci-root .entry-content li,
#hci-root li {
  background-image: none !important;
  padding-left: 0;
  list-style: none;
}

/* --- Cocoon 見出し・段落装飾の排除 --- */
:where(#hci-root .entry-content h1, #hci-root .entry-content h2, #hci-root .entry-content h3,
       #hci-root .entry-content h4, #hci-root .entry-content h5, #hci-root .entry-content h6,
       #hci-root h1, #hci-root h2, #hci-root h3,
       #hci-root h4, #hci-root h5, #hci-root h6) {
  background: none !important;
  border: none !important;
  padding: 0;
  margin: 0;
  color: inherit;
  font-weight: inherit;
}
:where(#hci-root .entry-content p, #hci-root p) {
  margin: 0;
}
:where(#hci-root .entry-content a, #hci-root a) {
  color: inherit;
  text-decoration: none;
}
:where(#hci-root .entry-content a, #hci-root a):not(.hci-cta-button) {
  background: none;
}
#hci-root .entry-content img,
#hci-root img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
  border: none;
  box-shadow: none;
}

/* ============================================================
   Background Cosmic Layers
   ============================================================ */
.hci-cosmos {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(0,217,255,0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 80% 30%, rgba(167,139,250,0.10) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 90%, rgba(255,107,107,0.08) 0%, transparent 50%),
    var(--hci-bg-void);
  pointer-events: none;
  will-change: transform;
}
.hci-cosmos::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 80% 20%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 30% 80%, rgba(255,255,255,0.3), transparent),
    radial-gradient(2px 2px at 90% 50%, rgba(0,217,255,0.4), transparent),
    radial-gradient(1px 1px at 10% 60%, rgba(167,139,250,0.4), transparent);
  background-size: 200% 200%;
  animation: hci-drift 60s linear infinite;
  opacity: 0.6;
}
@keyframes hci-drift {
  0%   { transform: translate(0,0); }
  100% { transform: translate(-50px,-30px); }
}

.hci-grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,217,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,217,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* ============================================================
   Hero Section
   ============================================================ */
.hci-hero {
  /* ★ フルブリード：親要素の幅制約に関係なく常にビューポート全幅で表示する */
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  box-sizing: border-box;

  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 8vw 80px;
  position: relative;
  overflow: hidden;
}
.hci-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
}
.hci-hero-content { min-width: 0; }
.hci-hero-visual {
  min-width: 0;
  position: relative;
}
.hci-hero-visual::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, rgba(0,217,255,0.18) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* ============================================================
   Hero Colophon（ブランド／Vol 表示：奥付風のプレタイトル）
   ============================================================ */
.hci-hero-colophon {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--hci-card-border);
  font-family: var(--hci-font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--hci-ink-secondary);
  text-transform: uppercase;
}
.hci-hero-brand {
  color: var(--hci-ink-primary);
  font-weight: 700;
}
.hci-hero-brand-sep {
  color: var(--hci-ink-muted);
  opacity: 0.7;
}
.hci-hero-brand-vol {
  color: var(--hci-cyan);
  font-weight: 700;
  position: relative;
  padding-left: 14px;
}
.hci-hero-brand-vol::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hci-cyan);
  box-shadow: 0 0 8px var(--hci-cyan);
  transform: translateY(-50%);
}

@media (max-width: 768px) {
  .hci-hero-colophon {
    font-size: 10.5px;
    letter-spacing: 0.22em;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 14px;
  }
  .hci-hero-brand-vol { padding-left: 12px; }
}

.hci-hero-tag {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--hci-cyan);
  margin-bottom: 32px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border: 1px solid var(--hci-border-glow);
  border-radius: 100px;
  background: rgba(0,217,255,0.05);
  width: fit-content;
  text-transform: uppercase;
}
.hci-hero-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--hci-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--hci-cyan);
  animation: hci-pulse 2s ease-in-out infinite;
}
@keyframes hci-pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: 0.5; transform: scale(1.3); }
}

.hci-hero-title {
  font-size: clamp(2.4rem, 4.2vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  /* 日本語禁則を強化し、単語途中で折れる事故を防ぐ */
  word-break: keep-all;
  overflow-wrap: normal;
  line-break: strict;
}
.hci-title-line {
  display: inline-block;
  /* PC表示では行内で折り返さず、必ず .hci-title-break の位置でのみ改行させる */
  white-space: nowrap;
}
.hci-title-break {
  display: block;
  width: 100%;
  height: 0;
  content: "";
}

.hci-hero-title-sub {
  display: block;
  font-size: 1rem;
  color: var(--hci-ink-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
}
.hci-accent {
  background: var(--hci-gradient-flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}
.hci-strike {
  position: relative;
  color: var(--hci-ink-muted);
}
.hci-strike::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 55%;
  height: 3px;
  background: var(--hci-warm);
  transform: rotate(-2deg);
}
.hci-hero-sub {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--hci-ink-secondary);
  line-height: 1.95;
  margin-bottom: 48px;
}
.hci-hero-sub em {
  color: var(--hci-cyan-soft);
  font-style: normal;
  border-bottom: 1px dashed var(--hci-cyan);
  padding-bottom: 2px;
}

.hci-hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: auto;
  gap: 24px 32px;
  padding-top: 32px;
  border-top: 1px solid var(--hci-card-border);
}
.hci-hero-meta .hci-meta-item {
  padding-right: 8px;
  border-left: 2px solid var(--hci-card-border);
  padding-left: 16px;
}

.hci-meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hci-meta-num {
  font-family: var(--hci-font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--hci-gradient-flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hci-meta-label {
  font-size: 10.5px;
  letter-spacing: 0.15em;
  color: var(--hci-ink-muted);
  text-transform: uppercase;
}

.hci-scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--hci-ink-muted);
  font-size: 10px;
  letter-spacing: 0.3em;
  animation: hci-float 3s ease-in-out infinite;
}
.hci-scroll-cue::after {
  content: "";
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--hci-cyan) 0%, transparent 100%);
}
@keyframes hci-float {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%     { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   Figure / Image Block（Hero & Chapter画像共通）
   ============================================================ */
.hci-figure {
  width: 100%;
  max-width: 1200px;
  margin: 40px auto;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--hci-card-border);
  background: linear-gradient(135deg, rgba(0,217,255,0.05) 0%, rgba(167,139,250,0.03) 100%);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4), 0 0 60px rgba(0,217,255,0.08);
}
.hci-figure-hero {
  max-width: 100%;
  margin: 0;
}
.hci-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.9s ease;
}
.hci-figure:hover img { transform: scale(1.02); }
.hci-figure-caption {
  padding: 14px 24px;
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--hci-ink-muted);
  text-align: center;
  text-transform: uppercase;
  background: rgba(5,6,15,0.6);
  border-top: 1px solid var(--hci-card-border);
}

/* ============================================================
   Section Base
   ============================================================ */
.hci-chapter {
  padding: 120px 8vw;
  position: relative;
  max-width: 1600px;
  margin: 0 auto;
}
.hci-chapter-head {
  margin-bottom: 80px;
  max-width: 1000px;
}
.hci-chapter-num {
  font-family: var(--hci-font-mono);
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--hci-cyan);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hci-chapter-num::before {
  content: "";
  display: block;
  width: 60px;
  height: 1px;
  background: var(--hci-cyan);
}
.hci-chapter-title {
  font-size: clamp(1.8rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hci-chapter-title-sub {
  font-size: 0.6em;
  color: var(--hci-ink-secondary);
  font-weight: 600;
}
.hci-highlight {
  background: linear-gradient(120deg, transparent 0%, transparent 60%, rgba(244,196,48,0.25) 60%, rgba(244,196,48,0.25) 95%, transparent 95%);
  padding: 0 4px;
}
.hci-chapter-lead {
  font-size: 1.1rem;
  color: var(--hci-ink-secondary);
  line-height: 2;
  max-width: 800px;
}
.hci-strong-cyan   { color: var(--hci-cyan-soft); font-weight: 700; }
.hci-strong-violet { color: var(--hci-violet);    font-weight: 700; }
.hci-strong-gold   { color: var(--hci-gold);      font-weight: 700; }
.hci-strong-warm   { color: var(--hci-warm-soft); font-weight: 700; }
.hci-strong-primary{ color: var(--hci-ink-primary); font-weight: 700; }

.hci-section-title {
  font-size: 1.5rem;
  margin: 60px 0 32px;
  font-weight: 800;
  color: var(--hci-ink-primary);
  line-height: 1.5;
}
.hci-mt-80 { margin-top: 80px; }
.hci-mark-cyan   { color: var(--hci-cyan); }
.hci-mark-gold   { color: var(--hci-gold); }
.hci-mark-violet { color: var(--hci-violet); }
.hci-mark-warm   { color: var(--hci-warm); }
.hci-lead-text {
  color: var(--hci-ink-secondary);
  line-height: 2;
  margin-bottom: 32px;
}

/* ============================================================
   Conclusion Card
   ============================================================ */
.hci-conclusion-card {
  background: linear-gradient(135deg, rgba(0,217,255,0.08) 0%, rgba(167,139,250,0.05) 100%);
  border: 1px solid rgba(0,217,255,0.2);
  border-radius: 24px;
  padding: 48px;
  margin: 48px 0;
  position: relative;
  overflow: hidden;
}
.hci-conclusion-card::before {
  content: "結論";
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--hci-font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--hci-cyan);
  padding: 4px 12px;
  border: 1px solid var(--hci-cyan);
  border-radius: 100px;
}
.hci-conclusion-card::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,217,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hci-conclusion-card p {
  font-size: 1.15rem;
  line-height: 2;
  color: var(--hci-ink-primary);
  position: relative;
  z-index: 1;
}
.hci-conclusion-card p strong {
  color: var(--hci-cyan-soft);
  font-weight: 700;
}

/* ============================================================
   Six Domains (Grid Cards)
   ============================================================ */
.hci-six-domains {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin: 60px 0;
}
/* CHAPTER1 の非再現性6ドメインだけ、PCで明示的に3×2固定 */
#hci-ch1 .hci-six-domains {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
/* CHAPTER2 の4事例(EX/01〜04)は、PCで2×2固定にする */
#hci-ch2 .hci-six-domains {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hci-domain-card {
  padding: 36px 28px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s, border-color 0.4s;
  cursor: default;
}
.hci-domain-card:hover {
  transform: translateY(-6px);
  border-color: var(--hci-cyan);
  box-shadow: var(--hci-shadow-cyan);
}
.hci-domain-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--hci-gradient-flow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s;
}
.hci-domain-card:hover::before { transform: scaleX(1); }
.hci-domain-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(0,217,255,0.1);
  border: 1px solid rgba(0,217,255,0.3);
  margin-bottom: 24px;
  font-size: 24px;
  color: var(--hci-cyan);
}
.hci-domain-card h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--hci-ink-primary);
}
.hci-domain-card p {
  font-size: 0.95rem;
  color: var(--hci-ink-secondary);
  line-height: 1.9;
}
.hci-domain-card .hci-domain-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-family: var(--hci-font-mono);
  font-size: 0.75rem;
  color: var(--hci-ink-muted);
  letter-spacing: 0.2em;
}

/* ============================================================
   Value Ladder
   ============================================================ */
.hci-value-ladder {
  margin: 60px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hci-ladder-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 32px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 16px;
  position: relative;
  transition: all 0.4s;
}
.hci-ladder-item:hover {
  border-color: var(--hci-gold);
  background: rgba(244,196,48,0.03);
  transform: translateX(8px);
}
.hci-ladder-number {
  font-family: var(--hci-font-mono);
  font-size: 3rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px var(--hci-cyan);
  line-height: 1;
  display: flex;
  align-items: center;
}
.hci-ladder-content h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--hci-ink-primary);
}
.hci-ladder-content p {
  color: var(--hci-ink-secondary);
  font-size: 0.95rem;
  line-height: 1.9;
}
.hci-ladder-content .hci-tag {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--hci-font-mono);
  font-size: 10px;
  padding: 4px 10px;
  background: rgba(0,217,255,0.1);
  border: 1px solid rgba(0,217,255,0.3);
  border-radius: 100px;
  color: var(--hci-cyan);
  letter-spacing: 0.15em;
}

/* ============================================================
   Stellar Metaphor
   ============================================================ */
.hci-stellar-metaphor {
  margin: 60px 0;
  padding: 48px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 20px;
}
.hci-stellar-metaphor h4 {
  text-align: center;
  font-size: 1.3rem;
  margin-bottom: 32px;
  font-weight: 700;
  color: var(--hci-ink-primary);
}
.hci-gradient-text {
  background: var(--hci-gradient-flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hci-stellar-system {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  position: relative;
}
.hci-stellar-node {
  padding: 24px 16px;
  text-align: center;
  background: rgba(167,139,250,0.06);
  border: 1px solid rgba(167,139,250,0.25);
  border-radius: 14px;
  position: relative;
  transition: all 0.3s;
  box-shadow: 0 0 18px rgba(167,139,250,0.08) inset;
}
.hci-stellar-node:hover {
  transform: translateY(-4px);
  background: rgba(167,139,250,0.12);
  box-shadow: 0 0 28px rgba(167,139,250,0.18);
}
.hci-stellar-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
  display: block;
  filter: drop-shadow(0 0 6px rgba(244,196,48,0.55));
}
.hci-stellar-label {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--hci-cyan-soft);
}
.hci-stellar-desc {
  font-size: 0.75rem;
  color: var(--hci-ink-muted);
  line-height: 1.6;
}

/* ============================================================
   Circuit Diagram (Chapter 2)
   ============================================================ */
.hci-circuit-wrapper {
  margin: 60px 0;
  padding: 60px;
  background: linear-gradient(135deg, rgba(10,17,40,0.6) 0%, rgba(17,26,58,0.6) 100%);
  border: 1px solid var(--hci-card-border);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}
.hci-circuit-title {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--hci-cyan);
  margin-bottom: 40px;
  text-align: center;
  text-transform: uppercase;
}
.hci-circuit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.hci-circuit-node {
  padding: 28px 20px;
  background: rgba(5,6,15,0.6);
  border: 1px solid var(--hci-border-glow);
  border-radius: 12px;
  text-align: center;
  position: relative;
  transition: all 0.4s;
}
.hci-circuit-node:hover {
  background: rgba(0,217,255,0.08);
  transform: scale(1.03);
  box-shadow: var(--hci-shadow-cyan);
}
.hci-node-label {
  font-family: var(--hci-font-mono);
  font-size: 10px;
  color: var(--hci-cyan);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}
.hci-node-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--hci-ink-primary);
}
.hci-node-desc {
  font-size: 0.85rem;
  color: var(--hci-ink-secondary);
  line-height: 1.7;
}
.hci-circuit-node::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -20px;
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, var(--hci-cyan) 0%, transparent 100%);
  opacity: 0.4;
}
.hci-circuit-node:last-child::after { display: none; }

/* ============================================================
   Split Compare (Chapter 3)
   ============================================================ */
.hci-split-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  margin: 60px 0;
  align-items: stretch;
}
.hci-split-side {
  padding: 48px 40px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 20px;
  position: relative;
}
.hci-split-side.hci-old {
  background: linear-gradient(135deg, rgba(255,107,107,0.05) 0%, transparent 100%);
  border-color: rgba(255,107,107,0.2);
}
.hci-split-side.hci-new {
  background: linear-gradient(135deg, rgba(0,217,255,0.05) 0%, transparent 100%);
  border-color: rgba(0,217,255,0.2);
}
.hci-split-label {
  font-family: var(--hci-font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  padding: 4px 12px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 16px;
}
.hci-split-side.hci-old .hci-split-label {
  color: var(--hci-warm);
  background: rgba(255,107,107,0.1);
  border: 1px solid rgba(255,107,107,0.3);
}
.hci-split-side.hci-new .hci-split-label {
  color: var(--hci-cyan);
  background: rgba(0,217,255,0.1);
  border: 1px solid rgba(0,217,255,0.3);
}
.hci-split-side h4 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.4;
  color: var(--hci-ink-primary);
}
.hci-split-side ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hci-split-side li {
  padding-left: 24px !important;
  position: relative;
  color: var(--hci-ink-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
/* Cocoon の ::before リセットを上書きして、独自マーカーを付ける */
#hci-root .hci-split-side.hci-old li::before {
  content: "×" !important;
  position: absolute;
  left: 0;
  top: 0;
  color: var(--hci-warm) !important;
  font-weight: 700;
}
#hci-root .hci-split-side.hci-new li::before {
  content: "→" !important;
  position: absolute;
  left: 0;
  top: 0;
  color: var(--hci-cyan) !important;
  font-weight: 700;
}
.hci-split-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  font-size: 2rem;
  color: var(--hci-gold);
}

/* ============================================================
   Evolution Stack (Chapter 3)
   ============================================================ */
.hci-evolution-stack {
  margin: 60px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hci-stack-layer {
  padding: 32px 40px;
  border-radius: 16px;
  position: relative;
  transition: transform 0.4s;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.hci-stack-layer:hover { transform: translateX(-8px); }
.hci-stack-layer.hci-l1 {
  background: linear-gradient(90deg, rgba(255,107,107,0.15) 0%, rgba(255,107,107,0.05) 100%);
  border-left: 3px solid var(--hci-warm);
  margin-left: 0;
}
.hci-stack-layer.hci-l2 {
  background: linear-gradient(90deg, rgba(244,196,48,0.15) 0%, rgba(244,196,48,0.05) 100%);
  border-left: 3px solid var(--hci-gold);
  margin-left: 5%;
}
.hci-stack-layer.hci-l3 {
  background: linear-gradient(90deg, rgba(167,139,250,0.15) 0%, rgba(167,139,250,0.05) 100%);
  border-left: 3px solid var(--hci-violet);
  margin-left: 10%;
}
.hci-stack-layer.hci-l4 {
  background: linear-gradient(90deg, rgba(0,217,255,0.15) 0%, rgba(0,217,255,0.05) 100%);
  border-left: 3px solid var(--hci-cyan);
  margin-left: 15%;
}
.hci-stack-info h5 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--hci-ink-primary);
}
.hci-stack-info p {
  font-size: 0.9rem;
  color: var(--hci-ink-secondary);
  line-height: 1.7;
}
.hci-stack-badge {
  font-family: var(--hci-font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0,0,0,0.3);
  white-space: nowrap;
}
.hci-stack-layer.hci-l1 .hci-stack-badge { color: var(--hci-warm);   border: 1px solid var(--hci-warm); }
.hci-stack-layer.hci-l2 .hci-stack-badge { color: var(--hci-gold);   border: 1px solid var(--hci-gold); }
.hci-stack-layer.hci-l3 .hci-stack-badge { color: var(--hci-violet); border: 1px solid var(--hci-violet); }
.hci-stack-layer.hci-l4 .hci-stack-badge { color: var(--hci-cyan);   border: 1px solid var(--hci-cyan); }

/* ============================================================
   Category Names
   ============================================================ */
.hci-category-names {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 40px 0;
}
.hci-category-item {
  padding: 24px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 12px;
  transition: all 0.3s;
}
.hci-category-item:hover {
  border-color: var(--hci-violet);
  background: rgba(167,139,250,0.05);
}
.hci-category-en {
  font-family: var(--hci-font-mono);
  font-size: 0.85rem;
  color: var(--hci-violet);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-weight: 600;
}
.hci-category-jp {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--hci-ink-primary);
}
.hci-category-note {
  font-size: 0.85rem;
  color: var(--hci-ink-secondary);
  line-height: 1.7;
}

/* ============================================================
   Matrix (Chapter 4)
   ============================================================ */
.hci-matrix-wrapper {
  margin: 60px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.hci-matrix-side {
  padding: 40px;
  border-radius: 20px;
  border: 1px solid var(--hci-card-border);
  background: var(--hci-bg-card);
  position: relative;
  overflow: hidden;
}
.hci-matrix-side.hci-large {
  border-color: rgba(0,217,255,0.3);
  background: linear-gradient(135deg, rgba(0,217,255,0.06) 0%, transparent 100%);
}
.hci-matrix-side.hci-small {
  border-color: rgba(255,107,107,0.3);
  background: linear-gradient(135deg, rgba(255,107,107,0.06) 0%, transparent 100%);
}
.hci-matrix-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hci-card-border);
}
.hci-matrix-side.hci-large .hci-matrix-header { border-color: rgba(0,217,255,0.2); }
.hci-matrix-side.hci-small .hci-matrix-header { border-color: rgba(255,107,107,0.2); }
.hci-matrix-title-block h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--hci-ink-primary);
}
.hci-matrix-sub {
  font-family: var(--hci-font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--hci-ink-muted);
  text-transform: uppercase;
}
.hci-matrix-side.hci-large .hci-matrix-sub { color: var(--hci-cyan); }
.hci-matrix-side.hci-small .hci-matrix-sub { color: var(--hci-warm); }
.hci-matrix-emoji { font-size: 2rem; opacity: 0.6; }
.hci-matrix-side h5 {
  font-size: 0.85rem;
  color: var(--hci-ink-muted);
  letter-spacing: 0.15em;
  margin: 24px 0 12px;
  text-transform: uppercase;
}
.hci-matrix-side ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hci-matrix-side li {
  padding: 14px 16px !important;
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--hci-ink-secondary);
  border-left: 2px solid transparent;
  transition: all 0.3s;
}
.hci-matrix-side.hci-large li { border-left-color: var(--hci-cyan); }
.hci-matrix-side.hci-small li { border-left-color: var(--hci-warm); }
.hci-matrix-side li:hover { background: rgba(0,0,0,0.4); padding-left: 20px !important; }
.hci-matrix-side li strong {
  color: var(--hci-ink-primary);
  display: block;
  margin-bottom: 4px;
}

/* ============================================================
   Reversal Insight
   ============================================================ */
.hci-reversal {
  margin: 80px 0 40px;
  padding: 60px 48px;
  background: linear-gradient(135deg, #1a1035 0%, #0a1128 100%);
  border: 1px solid var(--hci-gold);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}
.hci-reversal::before {
  content: "REVERSAL";
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--hci-font-mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--hci-gold);
  padding: 6px 14px;
  border: 1px solid var(--hci-gold);
  border-radius: 100px;
}
.hci-reversal-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  margin-bottom: 32px;
  line-height: 1.4;
  max-width: 900px;
  color: var(--hci-ink-primary);
}
.hci-reversal-sub {
  color: var(--hci-gold);
  font-size: 0.85em;
}
.hci-under {
  background: linear-gradient(120deg, transparent 0%, transparent 60%, rgba(244,196,48,0.3) 60%);
  padding: 2px 4px;
}
.hci-reversal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.hci-reversal-item {
  padding: 24px;
  background: rgba(244,196,48,0.05);
  border: 1px solid rgba(244,196,48,0.2);
  border-radius: 12px;
}
.hci-reversal-item h6 {
  font-size: 0.95rem;
  color: var(--hci-gold);
  margin-bottom: 8px;
  font-weight: 700;
}
.hci-reversal-item p {
  font-size: 0.88rem;
  color: var(--hci-ink-secondary);
  line-height: 1.7;
}

/* ============================================================
   Evidence Wall
   ============================================================ */
.hci-evidence-wall {
  margin: 80px 0;
  padding: 60px;
  background: linear-gradient(135deg, rgba(10,17,40,0.8) 0%, rgba(5,6,15,0.8) 100%);
  border-radius: 24px;
  border: 1px solid var(--hci-card-border);
}
.hci-evidence-header {
  text-align: center;
  margin-bottom: 48px;
}
.hci-eyebrow {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--hci-cyan);
  margin-bottom: 16px;
}
.hci-evidence-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--hci-ink-primary);
}
.hci-evidence-header p {
  color: var(--hci-ink-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 2;
}
.hci-evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}
.hci-evidence-card {
  padding: 28px;
  background: var(--hci-bg-card);
  border: 1px solid var(--hci-card-border);
  border-radius: 14px;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}
.hci-evidence-card:hover {
  border-color: var(--hci-cyan);
  transform: translateY(-4px);
  box-shadow: var(--hci-shadow-cyan);
}
.hci-evidence-source {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hci-card-border);
}
.hci-evidence-badge {
  font-family: var(--hci-font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(0,217,255,0.1);
  color: var(--hci-cyan);
  border: 1px solid rgba(0,217,255,0.3);
}
.hci-evidence-year {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  color: var(--hci-ink-muted);
}
.hci-evidence-card p {
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--hci-ink-secondary);
  flex: 1;
  margin-bottom: 16px;
}
.hci-evidence-card a {
  color: var(--hci-cyan);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--hci-font-mono);
  border-bottom: 1px dashed var(--hci-cyan);
  padding-bottom: 2px;
  display: inline-block;
  transition: all 0.3s;
  word-break: break-all;
}
.hci-evidence-card a:hover {
  color: var(--hci-cyan-soft);
  border-color: var(--hci-cyan-soft);
}

/* ============================================================
   Refined Box
   ============================================================ */
.hci-refined-box {
  margin: 60px 0;
  padding: 48px;
  background: linear-gradient(135deg, rgba(167,139,250,0.06) 0%, rgba(0,217,255,0.03) 100%);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: 20px;
}
.hci-refined-box h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--hci-violet);
}
.hci-refined-box > p {
  color: var(--hci-ink-secondary);
  margin-bottom: 32px;
  line-height: 2;
}
.hci-refined-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.hci-refined-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px;
  background: rgba(0,0,0,0.2);
  border-radius: 12px;
}
.hci-refined-from {
  color: var(--hci-ink-muted);
  font-size: 0.95rem;
  text-decoration: line-through;
  text-decoration-color: var(--hci-warm);
}
.hci-refined-to {
  color: var(--hci-cyan-soft);
  font-size: 1rem;
  font-weight: 600;
}
.hci-refined-arrow {
  color: var(--hci-gold);
  font-size: 1.5rem;
  text-align: center;
}

/* ============================================================
   Final Synthesis
   ============================================================ */
.hci-synthesis {
  padding: 120px 8vw;
  background:
    radial-gradient(ellipse at center, rgba(0,217,255,0.08) 0%, transparent 60%),
    linear-gradient(180deg, var(--hci-bg-void) 0%, #0a1128 50%, var(--hci-bg-void) 100%);
  position: relative;
  text-align: center;
  overflow: hidden;
}
.hci-synthesis::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 80px;
  background: linear-gradient(180deg, transparent, var(--hci-cyan));
}
.hci-synthesis-eyebrow {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--hci-cyan);
  margin-bottom: 24px;
}
.hci-synthesis-title {
  font-size: clamp(2rem, 4.5vw, 4rem);
  font-weight: 900;
  line-height: 1.3;
  margin: 0 auto 40px;
  max-width: 1200px;
  color: var(--hci-ink-primary);
}
.hci-gradient {
  background: var(--hci-gradient-flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hci-synthesis-body {
  max-width: 820px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 2.2;
  color: var(--hci-ink-secondary);
  text-align: left;
}
.hci-synthesis-body p { margin-bottom: 24px; }
.hci-synthesis-quote {
  font-family: var(--hci-font-serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--hci-gold);
  margin-top: 40px;
  text-align: center;
}
.hci-synthesis-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin: 60px auto 0;
  max-width: 1200px;
}
.hci-pillar {
  padding: 32px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--hci-card-border);
  border-radius: 16px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  text-align: center;
  transition: transform 0.4s, border-color 0.4s;
}
.hci-pillar:hover {
  transform: translateY(-4px);
  border-color: var(--hci-cyan);
}
.hci-pillar-num {
  font-family: var(--hci-font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--hci-gradient-flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 12px;
}
.hci-pillar h5 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--hci-ink-primary);
}
.hci-pillar p {
  font-size: 0.85rem;
  color: var(--hci-ink-muted);
  line-height: 1.8;
}

/* ============================================================
   CTA
   ============================================================ */
.hci-cta-wrapper {
  margin-top: 80px;
  padding-top: 60px;
  border-top: 1px solid var(--hci-card-border);
}
.hci-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 22px 48px;
  min-width: 320px;
  justify-content: center;
  font-family: var(--hci-font-jp);
  font-size: 1.05rem;
  font-weight: 800;
  color: #05060f !important;
  background: var(--hci-cyan);
  border: none;
  border-radius: 100px;
  text-decoration: none !important;
  letter-spacing: 0.05em;
  box-shadow: 0 20px 50px rgba(0,217,255,0.35), 0 0 30px rgba(0,217,255,0.25) inset;
  transition: transform 0.4s, box-shadow 0.4s, filter 0.4s;
  position: relative;
  overflow: hidden;
}
.hci-cta-button::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, transparent 60%);
  pointer-events: none;
}
.hci-cta-button:hover {
  transform: translateY(-4px);
  filter: brightness(1.08);
  box-shadow: 0 28px 60px rgba(0,217,255,0.5), 0 0 40px rgba(0,217,255,0.35) inset;
}
.hci-cta-arrow {
  font-size: 1.3rem;
  transition: transform 0.3s;
}
.hci-cta-button:hover .hci-cta-arrow { transform: translateX(6px); }
.hci-cta-subtext {
  margin-top: 20px;
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--hci-ink-muted);
  text-transform: uppercase;
}

/* ============================================================
   Local Footer
   ============================================================ */
.hci-local-footer {
  padding: 60px 8vw 40px;
  border-top: 1px solid var(--hci-card-border);
  background: var(--hci-bg-void);
  text-align: center;
}
.hci-footer-brand {
  font-family: var(--hci-font-mono);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--hci-cyan);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.hci-footer-tagline {
  font-family: var(--hci-font-serif);
  font-size: 1.1rem;
  color: var(--hci-ink-secondary);
  margin-bottom: 32px;
  font-style: italic;
}
.hci-footer-meta {
  font-size: 11px;
  color: var(--hci-ink-muted);
  letter-spacing: 0.1em;
  line-height: 2;
}

/* ============================================================
   Reveal Animation
   ============================================================ */
.hci-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.hci-reveal.hci-on {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .hci-reveal { opacity: 1; transform: none; transition: none; }
  .hci-cosmos::before { animation: none; }
  .hci-hero-tag::before { animation: none; }
  .hci-scroll-cue { animation: none; }
}

/* ============================================================
   Responsive — Tablet (max-width: 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .hci-chapter { padding: 100px 6vw; }
  .hci-hero { padding: 120px 6vw 80px; }
  .hci-hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hci-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
  }
  .hci-hero-meta .hci-meta-item {
    border-left: none;
    padding-left: 0;
    padding-right: 0;
  }
  .hci-conclusion-card { padding: 40px 32px; }
  .hci-circuit-wrapper { padding: 44px 32px; }
  .hci-evidence-wall { padding: 44px 32px; }
  .hci-refined-box { padding: 40px 32px; }
  .hci-reversal { padding: 48px 32px; }
  .hci-stellar-system { grid-template-columns: repeat(3, 1fr); }
  .hci-stellar-metaphor { padding: 40px 28px; }
  /* タブレットは現状挙動（2列）を維持 */
  .hci-six-domains {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  #hci-ch1 .hci-six-domains {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ============================================================
   Responsive — Mobile (max-width: 900px)
   ============================================================ */
@media (max-width: 900px) {
  .hci-matrix-wrapper { grid-template-columns: 1fr; }
  .hci-split-compare { grid-template-columns: 1fr; }
  .hci-split-arrow { transform: rotate(90deg); padding: 20px 0; }
  .hci-stellar-system { grid-template-columns: 1fr 1fr; }
  /* タブレット・モバイルでは、行内折り返しを許可して画面幅に追従させる */
  .hci-hero-title .hci-title-line {
    white-space: normal;
  }
}

/* ============================================================
   Responsive — Smartphone (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
  .hci-hero { padding: 100px 5vw 60px; min-height: auto; }
  .hci-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hci-hero-title { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hci-hero-sub { font-size: 0.95rem; line-height: 1.9; margin-bottom: 32px; }
  .hci-hero-meta { gap: 20px; padding-top: 28px; }
  .hci-meta-num { font-size: 1.5rem; }
  .hci-meta-label { font-size: 10px; }
  .hci-scroll-cue { display: none; }

  .hci-chapter { padding: 80px 5vw; }
  .hci-chapter-head { margin-bottom: 48px; }
  .hci-chapter-title { font-size: clamp(1.4rem, 6vw, 2rem); }
  .hci-chapter-lead { font-size: 1rem; line-height: 1.9; }

  .hci-conclusion-card { padding: 32px 24px; margin: 32px 0; }
  .hci-conclusion-card p { font-size: 1rem; line-height: 1.9; }

  .hci-six-domains { grid-template-columns: 1fr; gap: 16px; }
  .hci-domain-card { padding: 28px 22px; }

  .hci-value-ladder { gap: 12px; }
  .hci-ladder-item { grid-template-columns: 1fr; gap: 12px; padding: 24px; }
  .hci-ladder-number { font-size: 2.2rem; }

  .hci-circuit-wrapper { padding: 32px 20px; }
  .hci-circuit-grid { grid-template-columns: 1fr; gap: 14px; }
  .hci-circuit-node::after { display: none; }

  .hci-split-side { padding: 32px 24px; }

  .hci-stack-layer {
    grid-template-columns: 1fr;
    margin-left: 0 !important;
    padding: 24px 20px;
  }
  .hci-stack-badge { justify-self: start; }

  .hci-category-names { grid-template-columns: 1fr; }

  .hci-matrix-side { padding: 28px 22px; }

  .hci-reversal { padding: 40px 24px; }
  .hci-reversal-title { font-size: 1.25rem; }
  .hci-reversal-grid { grid-template-columns: 1fr; }

  .hci-evidence-wall { padding: 40px 20px; }
  .hci-evidence-grid { grid-template-columns: 1fr; }
  .hci-evidence-card { padding: 24px 20px; }

  .hci-refined-box { padding: 32px 22px; }
  .hci-refined-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 12px;
    padding: 20px;
  }
  .hci-refined-arrow { transform: rotate(90deg); }

  .hci-synthesis { padding: 80px 5vw; }
  .hci-synthesis-title { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .hci-synthesis-body { font-size: 1rem; line-height: 2; }
  .hci-synthesis-quote { font-size: 1.05rem; }
  .hci-synthesis-pillars { grid-template-columns: 1fr 1fr; gap: 14px; }
  .hci-pillar { padding: 24px 16px; }
  .hci-pillar-num { font-size: 2rem; }

  .hci-cta-button {
    min-width: unset;
    width: 100%;
    padding: 20px 24px;
    font-size: 0.98rem;
  }

  .hci-local-footer { padding: 48px 5vw 32px; }
  .hci-footer-tagline { font-size: 1rem; }

  .hci-stellar-metaphor { padding: 32px 20px; }
  .hci-stellar-system { grid-template-columns: 1fr 1fr; gap: 10px; }

  .hci-figure { margin: 28px auto; border-radius: 14px; }
  .hci-figure-caption { padding: 10px 16px; font-size: 10px; letter-spacing: 0.15em; }
  .hci-align-center-wrapper { margin: 28px 0; }
}

/* ============================================================
   Responsive — Small Smartphone (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hci-hero { padding: 90px 5vw 48px; }
  .hci-hero-title { font-size: 1.75rem; line-height: 1.25; }
  .hci-hero-sub { font-size: 0.92rem; }
  .hci-hero-meta { gap: 16px; }
  .hci-meta-num { font-size: 1.3rem; }
  .hci-synthesis-pillars { grid-template-columns: 1fr; }
  .hci-stellar-system { grid-template-columns: 1fr; }
  .hci-conclusion-card::before { top: 12px; right: 12px; font-size: 9px; }
  .hci-reversal::before { top: 12px; right: 12px; font-size: 9px; }
}