/* =============================================================
   Cor-an Holdings — Brand Guidelines v3.1 準拠
   Sumi on Paper / Water-Clear Design Language
   ============================================================= */

/* ── CSS Variables (Brand Palette) ─────────────────────────── */
:root {
  /* Core Palette — 8色限定 */
  --color-cream:      #F5F4F0;   /* Soft Cream — 背景・土台 */
  --color-paper:      #FAFAF8;   /* Paper White — カード・コンテンツ面 */
  --color-sumi-deep:  #1A1A1A;   /* 深墨 — 主見出し・ロゴ */
  --color-sumi-mid:   #2B2B2B;   /* 中墨 — 副見出し・強調 */
  --color-sumi-light: #4A4A4A;   /* 淡墨 — 本文 */
  --color-mist:       #666666;   /* 霧 — キャプション・補足 */
  --color-whisper:    #999999;   /* 囁き — placeholder・無効 */
  --color-fine-line:  #E8E8E5;   /* 細線 — 罫線・区切り */

  /* Overlay on dark BG */
  --color-sumi-inv:   #F0EFEb;   /* 墨系背景上のテキスト */
  --color-mist-inv:   rgba(240,239,235,0.55);

  /* Typography */
  --ff-ja-serif:  'Noto Serif JP', 'Yu Mincho', 'YuMincho', serif;
  --ff-en-serif:  'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --ff-sans:      'Noto Sans JP', sans-serif;

  /* Spacing rhythm */
  --space-xs:   8px;
  --space-sm:   16px;
  --space-md:   32px;
  --space-lg:   64px;
  --space-xl:   96px;
  --space-2xl:  140px;

  /* Line-height */
  --lh-body:    1.9;
  --lh-heading: 1.4;

  /* Layout */
  --container-w: 1120px;
  --container-narrow: 720px;
  --nav-h: 68px;

  /* Shadows — 最小限 */
  --shadow-card: 0 2px 16px rgba(0,0,0,0.04);
  --shadow-lift: 0 4px 28px rgba(0,0,0,0.07);

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-ja-serif);
  font-weight: 400;
  color: var(--color-sumi-light);
  background: var(--color-cream);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.section {
  padding: var(--space-2xl) 0;
}
.section-md { padding: var(--space-xl) 0; }

/* Background layers — 紙の二層構造 */
.bg-cream  { background: var(--color-cream); }
.bg-paper  { background: var(--color-paper); }
.bg-sumi   { background: var(--color-sumi-deep); color: var(--color-sumi-inv); }
.bg-sumi-mid { background: var(--color-sumi-mid); color: var(--color-sumi-inv); }

/* ── Typography Scale ───────────────────────────────────────── */

/* Display — 大見出し */
.t-display {
  font-family: var(--ff-ja-serif);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: 0.06em;
  color: var(--color-sumi-deep);
}
/* H1 */
.t-h1 {
  font-family: var(--ff-ja-serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  line-height: var(--lh-heading);
  letter-spacing: 0.05em;
  color: var(--color-sumi-deep);
}
/* H2 */
.t-h2 {
  font-family: var(--ff-ja-serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: var(--lh-heading);
  color: var(--color-sumi-mid);
}
/* H3 */
.t-h3 {
  font-family: var(--ff-ja-serif);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--color-sumi-mid);
}
/* Section label — 小見出しラベル */
.t-label {
  font-family: var(--ff-en-serif);
  font-size: 0.68rem;
  font-style: italic;
  letter-spacing: 0.22em;
  color: var(--color-whisper);
  text-transform: uppercase;
}
/* Body */
.t-body {
  font-size: 0.96rem;
  line-height: var(--lh-body);
  color: var(--color-sumi-light);
}
/* Caption */
.t-caption {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--color-mist);
}
/* English italic accent */
.t-en {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.9em;
  color: var(--color-mist);
}
/* Inverse text (on sumi background) */
.t-inv       { color: var(--color-sumi-inv); }
.t-inv-mist  { color: var(--color-mist-inv); }

/* ── Section Header Block ───────────────────────────────────── */
.sec-head {
  margin-bottom: var(--space-lg);
}
.sec-head .t-label { margin-bottom: var(--space-sm); display: block; }
.sec-head .t-h1,
.sec-head .t-h2 { margin-bottom: var(--space-sm); }
.sec-head p { max-width: 560px; }

/* ── Navigation ─────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 900;
  transition: background 0.5s var(--ease), border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(250, 250, 248, 0.96);
  border-bottom-color: var(--color-fine-line);
  backdrop-filter: blur(10px);
}

.nav-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}
.logo-main {
  font-family: var(--ff-en-serif);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--color-paper);
  transition: color 0.5s;
}
.logo-sub {
  font-family: var(--ff-en-serif);
  font-size: 0.5rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(250,250,248,0.55);
  transition: color 0.5s;
  font-style: italic;
}
#navbar.scrolled .logo-main { color: var(--color-sumi-deep); }
#navbar.scrolled .logo-sub  { color: var(--color-whisper); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-family: var(--ff-en-serif);
  font-size: 0.72rem;
  font-style: italic;
  letter-spacing: 0.14em;
  color: rgba(250,250,248,0.75);
  transition: color 0.3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--color-paper);
  transform: scaleX(0);
  transition: transform 0.35s var(--ease);
  transform-origin: left;
}
.nav-links a:hover { color: var(--color-paper); }
.nav-links a:hover::after { transform: scaleX(1); }
#navbar.scrolled .nav-links a       { color: var(--color-mist); }
#navbar.scrolled .nav-links a::after { background: var(--color-sumi-deep); }
#navbar.scrolled .nav-links a:hover { color: var(--color-sumi-deep); }
#navbar.scrolled .nav-links a.nav-active { color: var(--color-sumi-deep); }
#navbar.scrolled .nav-links a.nav-active::after { transform: scaleX(1); }

.nav-links a.nav-contact {
  border: 1px solid rgba(250,250,248,0.3);
  padding: 7px 20px;
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}
.nav-links a.nav-contact:hover {
  background: rgba(250,250,248,0.1);
  border-color: rgba(250,250,248,0.7);
}
#navbar.scrolled .nav-links a.nav-contact {
  border-color: var(--color-fine-line);
  color: var(--color-sumi-mid) !important;
}
#navbar.scrolled .nav-links a.nav-contact:hover {
  background: var(--color-sumi-deep);
  color: var(--color-paper) !important;
  border-color: var(--color-sumi-deep);
}
#navbar.scrolled .nav-links a.nav-contact::after { display: none; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-hamburger span {
  width: 22px; height: 1px;
  background: var(--color-paper);
  transition: background 0.5s, transform 0.3s, opacity 0.3s;
  display: block;
}
#navbar.scrolled .nav-hamburger span { background: var(--color-sumi-deep); }
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--color-sumi-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Ripple — 水の波紋 */
.hero-ripples {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.rpl {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(250,250,248,0.06);
  animation: rplExpand 9s ease-out infinite;
}
.rpl-1 { width: 120px; height: 120px; animation-delay: 0s; }
.rpl-2 { width: 120px; height: 120px; animation-delay: 2.25s; }
.rpl-3 { width: 120px; height: 120px; animation-delay: 4.5s; }
.rpl-4 { width: 120px; height: 120px; animation-delay: 6.75s; }

@keyframes rplExpand {
  0%   { transform: scale(1);  opacity: 0.7; }
  100% { transform: scale(14); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--space-md);
  max-width: 820px;
}
.hero-kana {
  display: block;
  font-family: var(--ff-ja-serif);
  font-size: clamp(2.6rem, 6.5vw, 5.5rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--color-paper);
  line-height: 1.5;
  margin-bottom: 8px;
}
.hero-kana-en {
  display: block;
  font-family: var(--ff-en-serif);
  font-size: clamp(0.75rem, 1.5vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--color-paper);
  opacity: 0.38;
  margin-bottom: 20px;
}
/* 英語表示時はhero-kana-enを非表示 */
[data-lang="en"] .hero-kana-en { display: none; }
.hero-en {
  display: block;
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: rgba(250,250,248,0.45);
  margin-bottom: var(--space-lg);
}
.hero-eyebrow {
  display: block;
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(250,250,248,0.35);
  margin-bottom: var(--space-md);
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 36px;
  border: 1px solid rgba(250,250,248,0.25);
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: rgba(250,250,248,0.7);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}
.hero-cta:hover {
  border-color: rgba(250,250,248,0.6);
  color: var(--color-paper);
  background: rgba(250,250,248,0.05);
}
.hero-cta i { font-size: 0.7rem; transition: transform 0.3s; }
.hero-cta:hover i { transform: translateX(4px); }

.hero-scroll {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 1;
}
.hero-scroll span {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: rgba(250,250,248,0.3);
  text-transform: uppercase;
}
.scroll-bar {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, rgba(250,250,248,0.25), transparent);
  animation: scrollAnim 2.4s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50%       { opacity: 0.8; transform: scaleY(1); transform-origin: top; }
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
  width: 1px;
  height: 48px;
  background: var(--color-fine-line);
  margin: 0 auto var(--space-lg);
}
.divider-h {
  height: 1px;
  background: var(--color-fine-line);
  margin: var(--space-lg) 0;
}

/* ── Card — 紙の二層構造 ─────────────────────────────────────── */
.card {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
}
.card:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

/* ── Message Section ────────────────────────────────────────── */
.msg-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}
.msg-quote {
  font-family: var(--ff-ja-serif);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--color-sumi-mid);
  padding-left: var(--space-md);
  border-left: 1px solid var(--color-fine-line);
  margin-bottom: var(--space-md);
}
.msg-body p {
  font-size: 0.95rem;
  line-height: var(--lh-body);
  color: var(--color-sumi-light);
  margin-bottom: var(--space-sm);
}
.msg-sig {
  padding-top: var(--space-md);
  margin-top: var(--space-md);
  border-top: 1px solid var(--color-fine-line);
}
.sig-name {
  font-family: var(--ff-ja-serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--color-sumi-deep);
  display: block;
  margin-bottom: 4px;
}
.sig-role { font-size: 0.75rem; color: var(--color-mist); line-height: 1.6; display: block; }

.philo-stack { display: flex; flex-direction: column; gap: var(--space-sm); }
.philo-card {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-md) 28px;
  box-shadow: var(--shadow-card);
}
.philo-card .t-label { display: block; margin-bottom: 10px; }
.philo-card .philo-jp {
  font-family: var(--ff-ja-serif);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--color-sumi-mid);
  line-height: 1.75;
  margin-bottom: 6px;
}
.philo-card .philo-en {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.82rem;
  color: var(--color-mist);
  line-height: 1.6;
}

/* ── Principles ─────────────────────────────────────────────── */
.principles-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-fine-line);
}
.principle-block {
  background: var(--color-paper);
  padding: var(--space-lg) var(--space-md);
  transition: background 0.3s;
}
.principle-block:hover { background: var(--color-cream); }
.pr-roman {
  font-family: var(--ff-en-serif);
  font-size: 2.2rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-fine-line);
  margin-bottom: var(--space-sm);
  display: block;
  line-height: 1;
}
.principle-block h3 {
  font-family: var(--ff-ja-serif);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-sumi-mid);
  margin-bottom: 6px;
}
.principle-block .t-en { display: block; margin-bottom: 16px; }
.principle-block p {
  font-size: 0.88rem;
  color: var(--color-mist);
  line-height: 1.8;
}

/* ── Four Ripples Grid ──────────────────────────────────────── */
.ripples-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-fine-line);
}
.ripple-tile {
  background: var(--color-paper);
  padding: var(--space-lg) var(--space-md);
  display: block;
  transition: background 0.35s var(--ease);
  position: relative;
}
.ripple-tile:hover { background: var(--color-cream); }
.ripple-tile .rt-index {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-whisper);
  margin-bottom: var(--space-sm);
  display: block;
}
.ripple-tile h3 {
  font-family: var(--ff-ja-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-sumi-deep);
  margin-bottom: 4px;
}
.ripple-tile .rt-en {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.75rem;
  color: var(--color-whisper);
  display: block;
  margin-bottom: var(--space-sm);
}
.ripple-tile p {
  font-size: 0.84rem;
  color: var(--color-mist);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}
.rt-arrow {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.7rem;
  color: var(--color-whisper);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s, gap 0.3s;
}
.ripple-tile:hover .rt-arrow {
  color: var(--color-sumi-mid);
  gap: 12px;
}

/* Ripple accent lines — 波紋の色 */
.rt-1 { border-top: 2px solid #4A7455; }
.rt-2 { border-top: 2px solid #4A6A82; }
.rt-3 { border-top: 2px solid #8A6A3A; }
.rt-4 { border-top: 2px solid #6A5078; }

/* ── Numbers / Stats ─────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(250,250,248,0.08);
}
.stat-block {
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}
.stat-num {
  font-family: var(--ff-en-serif);
  font-size: 3.2rem;
  font-weight: 300;
  color: var(--color-paper);
  line-height: 1;
  margin-bottom: 10px;
  display: block;
}
.stat-num sup {
  font-size: 1.2rem;
  vertical-align: super;
}
.stat-label {
  font-size: 0.72rem;
  color: rgba(250,250,248,0.4);
  letter-spacing: 0.1em;
  line-height: 1.5;
}

/* ── CTA Band ─────────────────────────────────────────────────── */
.cta-band {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
}
.cta-band .t-h1 { margin-bottom: var(--space-sm); }
.cta-band p { color: var(--color-mist); margin-bottom: var(--space-lg); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 44px;
  border: 1px solid var(--color-sumi-deep);
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  color: var(--color-sumi-deep);
  transition: background 0.3s, color 0.3s;
}
.btn-outline:hover {
  background: var(--color-sumi-deep);
  color: var(--color-paper);
}
.btn-outline i { font-size: 0.72rem; transition: transform 0.3s; }
.btn-outline:hover i { transform: translateX(4px); }

/* ── Page Hero ──────────────────────────────────────────────── */
.pg-hero {
  background: var(--color-sumi-deep);
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}
.pg-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(74,116,85,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.pg-hero-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative; z-index: 1;
}
.pg-hero .t-label { color: rgba(250,250,248,0.3); display: block; margin-bottom: var(--space-sm); }
.pg-hero .t-h1 { color: var(--color-paper); margin-bottom: 12px; }
.pg-hero .t-en  { color: rgba(250,250,248,0.35); font-size: 0.95rem; display: block; margin-top: 6px; }

/* ── Intro block ─────────────────────────────────────────────── */
.intro-block {
  max-width: 680px;
  margin-bottom: var(--space-xl);
}
.intro-block p {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-sumi-light);
  margin-bottom: var(--space-sm);
}

/* ── Group Structure ─────────────────────────────────────────── */
.struct-hub {
  text-align: center;
  margin-bottom: var(--space-md);
}
.hub-box {
  display: inline-block;
  background: var(--color-sumi-deep);
  color: var(--color-paper);
  padding: 24px 56px;
  position: relative;
  text-align: left;
}
.hub-box::after {
  content: '';
  position: absolute;
  bottom: -32px; left: 50%;
  transform: translateX(-50%);
  width: 1px; height: 32px;
  background: var(--color-fine-line);
}
.hub-label {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: rgba(250,250,248,0.35);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}
.hub-name {
  font-family: var(--ff-en-serif);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 4px;
}
.hub-desc { font-size: 0.72rem; color: rgba(250,250,248,0.4); }

.struct-branches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  border-top: 1px solid var(--color-fine-line);
  padding-top: var(--space-md);
}
.branch-box {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: 20px var(--space-sm);
  text-align: center;
  box-shadow: var(--shadow-card);
}
.branch-box.b1 { border-top: 2px solid #4A7455; }
.branch-box.b2 { border-top: 2px solid #4A6A82; }
.branch-box.b3 { border-top: 2px solid #8A6A3A; }
.branch-box.b4 { border-top: 2px solid #6A5078; }
.branch-num { font-family: var(--ff-ja-serif); font-size: 0.65rem; color: var(--color-whisper); display: block; margin-bottom: 6px; }
.branch-name { font-size: 0.78rem; font-weight: 500; color: var(--color-sumi-mid); display: block; margin-bottom: 4px; }
.branch-theme { font-family: var(--ff-en-serif); font-style: italic; font-size: 0.7rem; color: var(--color-whisper); }

/* ── Ripple Sections (Group page) ───────────────────────────── */
.rpls-section { padding: var(--space-xl) 0; }
.rpls-head { margin-bottom: var(--space-lg); }
.rpls-badge {
  display: inline-block;
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  padding: 4px 14px;
  border: 1px solid var(--color-fine-line);
  color: var(--color-mist);
  margin-bottom: var(--space-sm);
}
.rpls-title {
  font-family: var(--ff-ja-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 300;
  color: var(--color-sumi-deep);
  margin-bottom: 4px;
}
.rpls-title-en {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-mist);
}
.rpls-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-xl);
  align-items: start;
}
.company-entry {
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-fine-line);
}
.company-entry:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
.company-entry h3 {
  font-family: var(--ff-en-serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--color-sumi-mid);
  margin-bottom: 4px;
}
.company-meta { font-size: 0.72rem; color: var(--color-whisper); margin-bottom: 12px; display: block; }
.company-entry p { font-size: 0.9rem; line-height: 1.85; color: var(--color-mist); }
.company-category {
  display: inline-block;
  font-family: var(--ff-ja-sans);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-whisper);
  border: 1px solid var(--color-fine-line);
  padding: 2px 8px;
  margin-left: 10px;
  vertical-align: middle;
  position: relative;
  top: -1px;
}

.tag-list { display: flex; flex-direction: column; gap: 6px; padding-top: 4px; }
.tag-item {
  display: block;
  font-size: 0.7rem;
  color: var(--color-mist);
  border: 1px solid var(--color-fine-line);
  padding: 5px 12px;
  background: var(--color-paper);
  letter-spacing: 0.04em;
}

.future-five {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-md);
}
.ff-item {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: 28px var(--space-sm) 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.ff-item:hover {
  border-color: rgba(106,80,120,0.25);
  box-shadow: 0 4px 20px rgba(106,80,120,0.07);
}
.ff-svg {
  width: 40px;
  height: 40px;
  display: block;
  transition: opacity 0.3s var(--ease);
}
.ff-item:hover .ff-svg { opacity: 0.75; }
.ff-item i { font-size: 1.3rem; color: #6A5078; }
.ff-item span { font-size: 0.8rem; color: var(--color-sumi-light); letter-spacing: 0.05em; }

/* ── Technology Pillars ─────────────────────────────────────── */
.pillar-rows { display: flex; flex-direction: column; }
.pillar-row {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-fine-line);
  align-items: start;
}
.pillar-row:last-child { border-bottom: none; }
.pl-num {
  font-family: var(--ff-ja-serif);
  font-size: 0.9rem;
  color: var(--color-whisper);
  padding-top: 4px;
  letter-spacing: 0.05em;
}
.pl-body h3 {
  font-family: var(--ff-ja-serif);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--color-sumi-mid);
  margin-bottom: 4px;
}
.pl-body .t-en { display: block; margin-bottom: 14px; }
.pl-body p { font-size: 0.9rem; line-height: 1.85; color: var(--color-mist); margin-bottom: 14px; }
.pl-ip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  color: var(--color-mist);
  border: 1px solid var(--color-fine-line);
  padding: 5px 12px;
}
.pl-ip i { font-size: 0.65rem; }

.protocol-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-fine-line);
  margin-top: var(--space-sm);
}
.pr-step {
  background: var(--color-paper);
  padding: 18px 16px;
  text-align: center;
}
.pr-step .pr-n { font-size: 0.6rem; color: var(--color-whisper); display: block; margin-bottom: 4px; }
.pr-step .pr-name {
  font-family: var(--ff-en-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-sumi-mid);
  display: block;
  margin-bottom: 4px;
}
.pr-step .pr-desc { font-size: 0.68rem; color: var(--color-whisper); }

/* ── IP Grid (dark bg) ──────────────────────────────────────── */
.ip-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(250,250,248,0.06);
}
.ip-cell {
  padding: var(--space-lg) var(--space-md);
  transition: background 0.3s;
}
.ip-cell:hover { background: rgba(250,250,248,0.04); }
.ip-type {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: rgba(250,250,248,0.3);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.ip-cell h3 {
  font-family: var(--ff-en-serif);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--color-paper);
  margin-bottom: 12px;
}
.ip-cell p { font-size: 0.85rem; color: rgba(250,250,248,0.38); line-height: 1.75; }

/* ── R&D Grid ────────────────────────────────────────────────── */
.rd-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.rd-cell {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  box-shadow: var(--shadow-card);
}
.rd-cell i { font-size: 1.6rem; color: var(--color-whisper); margin-bottom: 14px; display: block; }
.rd-cell h4 { font-size: 0.85rem; color: var(--color-sumi-mid); margin-bottom: 8px; }
.rd-cell p { font-size: 0.78rem; color: var(--color-mist); line-height: 1.65; }

.partner-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}
.partner-cell {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  box-shadow: var(--shadow-card);
}
.partner-cell i { font-size: 1.8rem; color: var(--color-whisper); margin-bottom: 12px; display: block; }
.partner-cell .pc-name { font-size: 0.88rem; font-weight: 500; color: var(--color-sumi-mid); display: block; margin-bottom: 4px; }
.partner-cell .pc-sub  { font-size: 0.72rem; color: var(--color-mist); }

/* ── Impact — Implementation pillars ───────────────────────── */
.impl-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.impl-cell {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-lg) var(--space-md);
  box-shadow: var(--shadow-card);
}
.impl-num {
  font-family: var(--ff-ja-serif);
  font-size: 0.8rem;
  color: var(--color-whisper);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  display: block;
}
.impl-cell h3 {
  font-family: var(--ff-en-serif);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--color-sumi-mid);
  margin-bottom: 6px;
}
.impl-cell .t-en { display: block; margin-bottom: 16px; }
.impl-cell p { font-size: 0.9rem; line-height: 1.85; color: var(--color-mist); margin-bottom: var(--space-md); }
.impl-kpi {
  display: flex;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-fine-line);
}
.kpi-item .kpi-n {
  font-family: var(--ff-en-serif);
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-sumi-deep);
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}
.kpi-item .kpi-l { font-size: 0.7rem; color: var(--color-mist); }

.fragile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-sm);
}
.fragile-tag {
  font-size: 0.72rem;
  color: var(--color-mist);
  border: 1px solid var(--color-fine-line);
  padding: 4px 12px;
  background: var(--color-cream);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fragile-tag i { font-size: 0.65rem; color: var(--color-whisper); }

/* ── Awards ─────────────────────────────────────────────────── */
.award-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(250,250,248,0.06);
}
.award-cell {
  padding: var(--space-lg) var(--space-md);
  transition: background 0.3s;
}
.award-cell:hover { background: rgba(250,250,248,0.04); }
.award-cell i { font-size: 1.6rem; color: rgba(250,250,248,0.18); margin-bottom: 18px; display: block; }
.award-cell h3 {
  font-family: var(--ff-en-serif);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-paper);
  margin-bottom: 8px;
}
.award-cell .award-meta { font-size: 0.68rem; color: rgba(250,250,248,0.28); margin-bottom: 10px; display: block; }
.award-cell p { font-size: 0.82rem; color: rgba(250,250,248,0.38); line-height: 1.7; }

/* ── Timeline ───────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 100px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 64px; top: 6px; bottom: 0;
  width: 1px;
  background: var(--color-fine-line);
}
.tl-row {
  position: relative;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-lg);
  margin-left: -100px;
  margin-bottom: var(--space-lg);
  align-items: start;
}
.tl-row::before {
  content: '';
  position: absolute;
  left: 61px; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-fine-line);
  border: 1px solid var(--color-paper);
}
.tl-year {
  font-family: var(--ff-en-serif);
  font-size: 1.45rem;
  font-weight: 300;
  color: var(--color-whisper);
  text-align: right;
  padding-top: 2px;
}
.tl-body h4 {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-sumi-mid);
  margin-bottom: 6px;
}
.tl-body p { font-size: 0.84rem; color: var(--color-mist); line-height: 1.7; }

/* ── Company Profile ─────────────────────────────────────────── */
.profile-tbl {
  width: 100%;
  max-width: 640px;
  border-collapse: collapse;
}
.profile-tbl th, .profile-tbl td {
  padding: 16px var(--space-sm);
  border-bottom: 1px solid var(--color-fine-line);
  text-align: left;
  vertical-align: top;
}
.profile-tbl th {
  width: 160px;
  font-size: 0.72rem;
  color: var(--color-whisper);
  font-weight: 400;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.profile-tbl td { font-size: 0.92rem; color: var(--color-sumi-light); }
.td-sub { font-size: 0.72rem; color: var(--color-mist); display: block; margin-top: 3px; }

/* ── Group Table ─────────────────────────────────────────────── */
.gtbl-wrap { overflow-x: auto; }
.gtbl {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
.gtbl th {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
  text-align: left;
  padding: 12px var(--space-sm);
  border-bottom: 2px solid var(--color-fine-line);
  color: var(--color-whisper);
}
.gtbl td {
  padding: 14px var(--space-sm);
  border-bottom: 1px solid var(--color-fine-line);
  font-size: 0.88rem;
  vertical-align: middle;
}
.gtbl tr:last-child td { border-bottom: none; }
.gtbl td[rowspan] {
  border-bottom: 1px solid var(--color-fine-line);
  vertical-align: middle;
}
.gt-badge {
  display: inline-block;
  font-size: 0.62rem;
  padding: 2px 8px;
  border: 1px solid var(--color-fine-line);
  color: var(--color-mist);
}
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
}
.status-dot::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
}
.s-active::before  { background: #4A7455; }
.s-growing::before { background: #4A6A82; }
.s-future::before  { background: #999999; }

/* ── Leader Card ─────────────────────────────────────────────── */
.leader-wrap {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: var(--space-lg);
  align-items: start;
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-lg) var(--space-md);
  box-shadow: var(--shadow-card);
}
.leader-av {
  width: 96px; height: 96px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--color-fine-line);
  flex-shrink: 0;
  background: var(--color-cream);
}
.leader-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.leader-av i { font-size: 3rem; color: var(--color-fine-line); }
.leader-name {
  font-family: var(--ff-ja-serif);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-sumi-deep);
  display: block; margin-bottom: 2px;
}
.leader-name-en {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--color-mist);
  display: block; margin-bottom: 10px;
}
.leader-role {
  font-size: 0.72rem;
  color: var(--color-whisper);
  line-height: 1.6;
  display: block;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--color-fine-line);
}
.leader-bio { font-size: 0.9rem; color: var(--color-mist); line-height: 1.85; }

/* ── Partners ─────────────────────────────────────────────────── */
.partner-blocks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}
.pb-cell {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
}
.pb-cell h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-sumi-mid);
  margin-bottom: 10px;
}
.pb-cell h4 i { font-size: 0.85rem; color: var(--color-whisper); }
.pb-cell p { font-size: 0.85rem; color: var(--color-mist); line-height: 1.75; }

/* ── News ───────────────────────────────────────────────────── */
.news-filter-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}
.filt-btn {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  padding: 6px 18px;
  border: 1px solid var(--color-fine-line);
  color: var(--color-whisper);
  background: var(--color-paper);
  transition: all 0.25s;
  cursor: pointer;
}
.filt-btn.active, .filt-btn:hover {
  background: var(--color-sumi-deep);
  color: var(--color-paper);
  border-color: var(--color-sumi-deep);
}
.news-list { display: flex; flex-direction: column; }
.n-item {
  display: grid;
  grid-template-columns: 140px 80px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-fine-line);
  align-items: baseline;
  transition: padding 0.2s, background 0.2s;
}
.n-item:first-child { border-top: 1px solid var(--color-fine-line); }
.n-date {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--color-whisper);
}
.n-cat {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--color-mist);
  border: 1px solid var(--color-fine-line);
  padding: 3px 8px;
  display: inline-block;
  white-space: nowrap;
}
.n-text h3 {
  font-family: var(--ff-ja-serif);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-sumi-mid);
  margin-bottom: 6px;
  line-height: 1.55;
  transition: color 0.25s;
}
.n-item:hover .n-text h3 { color: var(--color-sumi-deep); }
.n-text p { font-size: 0.82rem; color: var(--color-mist); line-height: 1.65; }
.news-loading { padding: var(--space-xl) 0; text-align: center; color: var(--color-whisper); font-style: italic; font-family: var(--ff-en-serif); }

/* ── Contact Form ───────────────────────────────────────────── */
.contact-lead {
  max-width: 560px;
  margin-bottom: var(--space-xl);
}
.contact-lead p {
  font-size: 0.95rem;
  line-height: var(--lh-body);
  color: var(--color-mist);
  margin-bottom: 8px;
}
.contact-lead .t-en { display: block; margin-top: 4px; font-size: 0.85rem; }

.form-grid { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-whisper);
  font-family: var(--ff-en-serif);
  font-style: italic;
}
.req { color: var(--color-mist); }
.form-field input,
.form-field select,
.form-field textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-fine-line);
  background: var(--color-paper);
  font-family: var(--ff-ja-serif);
  font-size: 0.9rem;
  color: var(--color-sumi-light);
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  -webkit-appearance: none;
  border-radius: 0;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-sumi-light);
  box-shadow: 0 0 0 3px rgba(74,74,74,0.06);
}
.form-field textarea { resize: vertical; min-height: 136px; }
.form-field select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7' viewBox='0 0 10 7'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999999' fill='none' stroke-width='1.2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.form-actions { padding-top: var(--space-xs); }
.btn-submit {
  padding: 14px 44px;
  background: var(--color-sumi-deep);
  color: var(--color-paper);
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}
.btn-submit:hover { background: var(--color-sumi-mid); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.form-msg {
  margin-top: var(--space-sm);
  font-size: 0.84rem;
  padding: 12px 16px;
  display: none;
}
.form-msg.ok {
  display: block;
  background: rgba(74,116,85,0.07);
  border: 1px solid rgba(74,116,85,0.2);
  color: #4A7455;
}
.form-msg.err {
  display: block;
  background: rgba(160,60,60,0.07);
  border: 1px solid rgba(160,60,60,0.18);
  color: #9A4040;
}

.contact-meta {
  padding-top: var(--space-xl);
  margin-top: var(--space-xl);
  border-top: 1px solid var(--color-fine-line);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.cm-item { display: flex; align-items: flex-start; gap: 16px; }
.cm-item i { color: var(--color-whisper); font-size: 0.9rem; padding-top: 3px; width: 18px; }
.cm-item h4 { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-whisper); margin-bottom: 4px; font-family: var(--ff-en-serif); font-style: italic; }
.cm-item p { font-size: 0.9rem; color: var(--color-sumi-light); line-height: 1.6; }

/* ── Footer ─────────────────────────────────────────────────── */
#footer {
  background: var(--color-sumi-deep);
  color: var(--color-sumi-inv);
}
.footer-body {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
}
.footer-logo-img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  margin-bottom: 12px;
  opacity: 0.9;
}
.footer-brand-name {
  font-family: var(--ff-en-serif);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-paper);
  display: block;
  margin-bottom: 12px;
}
.footer-tagline {
  font-family: var(--ff-ja-serif);
  font-size: 0.85rem;
  line-height: 1.9;
  color: rgba(250,250,248,0.3);
}
.footer-tagline em {
  font-family: var(--ff-en-serif);
  font-style: italic;
  display: block;
  margin-top: 4px;
  font-size: 0.8rem;
}
.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.fnav-col h4 {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(250,250,248,0.25);
  margin-bottom: 18px;
}
.fnav-col ul { display: flex; flex-direction: column; gap: 10px; }
.fnav-col a, .fnav-col span {
  font-size: 0.8rem;
  color: rgba(250,250,248,0.35);
  transition: color 0.25s;
}
.fnav-col a:hover { color: rgba(250,250,248,0.75); }
.footer-foot {
  border-top: 1px solid rgba(250,250,248,0.06);
  max-width: var(--container-w);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-foot p { font-size: 0.68rem; color: rgba(250,250,248,0.2); }

/* ── Holding Field Diagram (Group page) ──────────────────────── */
.holding-diagram {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  box-shadow: var(--shadow-card);
  padding: var(--space-lg) var(--space-md);
  margin-bottom: var(--space-lg);
}
.hd-label-top {
  text-align: center;
  margin-bottom: var(--space-md);
}
.hd-label-top .t-label { display: block; margin-bottom: 8px; }
.hd-sub {
  font-family: var(--ff-en-serif);
  font-style: italic;
  font-size: 0.82rem;
  color: var(--color-mist);
}
.hd-svg-wrap {
  max-width: 700px;
  margin: 0 auto;
}
.hd-svg {
  width: 100%;
  height: auto;
  display: block;
}

.hd-img-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.hd-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ── Global Map Infographic (Impact page) ───────────────────── */
.global-map-wrap {
  background: var(--color-paper);
  border: 1px solid var(--color-fine-line);
  box-shadow: var(--shadow-card);
  padding: var(--space-lg) var(--space-md);
  margin-bottom: var(--space-xl);
}
.gmap-header {
  margin-bottom: var(--space-md);
}
.gmap-header .t-label { display: block; }
.gmap-svg-outer {
  width: 100%;
  overflow: hidden;
}
.gmap-svg {
  width: 100%;
  height: auto;
  display: block;
}

.gmap-img-outer {
  width: 100%;
}
.gmap-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ── Fade-in ─────────────────────────────────────────────────── */
.fi {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.fi.in { opacity: 1; transform: none; }
.fi-d1 { transition-delay: 0.1s; }
.fi-d2 { transition-delay: 0.2s; }
.fi-d3 { transition-delay: 0.3s; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .ripples-row      { grid-template-columns: repeat(2, 1fr); }
  .stats-row        { grid-template-columns: repeat(2, 1fr); }
  .award-grid       { grid-template-columns: repeat(2, 1fr); }
  .future-five      { grid-template-columns: repeat(3, 1fr); }
  .msg-wrap         { grid-template-columns: 1fr; gap: var(--space-lg); }
  .philo-stack      { display: grid; grid-template-columns: 1fr 1fr; }
  .principles-row   { grid-template-columns: 1fr; }
  .struct-branches  { grid-template-columns: repeat(2, 1fr); }
  .rd-grid          { grid-template-columns: repeat(2, 1fr); }
  .partner-row      { grid-template-columns: 1fr 1fr; }
  .rpls-grid        { grid-template-columns: 1fr; }
  .tag-list         { flex-direction: row; flex-wrap: wrap; }
  .tag-item         { display: inline-block; }
}

@media (max-width: 768px) {
  :root { --space-2xl: 80px; --space-xl: 56px; }

  /* Nav mobile */
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: var(--color-sumi-deep);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    z-index: 899;
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    font-size: 1.1rem !important;
    color: rgba(250,250,248,0.65) !important;
  }
  .nav-links a:hover { color: var(--color-paper) !important; }
  .nav-links a.nav-contact { border-color: rgba(250,250,248,0.2) !important; color: rgba(250,250,248,0.65) !important; }
  .nav-hamburger { display: flex; }

  .ripples-row      { grid-template-columns: 1fr; }
  .stats-row        { grid-template-columns: repeat(2, 1fr); }
  .award-grid       { grid-template-columns: 1fr; }
  .future-five      { grid-template-columns: repeat(2, 1fr); }
  .impl-grid        { grid-template-columns: 1fr; }
  .ip-grid          { grid-template-columns: 1fr; }
  .rd-grid          { grid-template-columns: 1fr 1fr; }
  .partner-row      { grid-template-columns: 1fr; }
  .partner-blocks   { grid-template-columns: 1fr; }
  .leader-wrap      { grid-template-columns: 1fr; }
  .pillar-row       { grid-template-columns: 1fr; gap: var(--space-sm); }
  .protocol-row     { grid-template-columns: repeat(2, 1fr); }
  .n-item           { grid-template-columns: 1fr; gap: 6px; }
  .form-row2        { grid-template-columns: 1fr; }
  .footer-body      { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-nav       { grid-template-columns: repeat(2, 1fr); }
  .footer-foot      { flex-direction: column; gap: 8px; text-align: center; }
  .timeline         { padding-left: 60px; }
  .tl-row           { grid-template-columns: 55px 1fr; margin-left: -60px; gap: var(--space-md); }
  .tl-row::before   { left: 41px; }
  .timeline::before { left: 44px; }
  .struct-branches  { grid-template-columns: 1fr 1fr; }
  .hub-box          { padding: 20px 32px; }
}

@media (max-width: 480px) {
  .container, .container-narrow { padding: 0 var(--space-sm); }
  .rd-grid { grid-template-columns: 1fr; }
  .future-five { grid-template-columns: repeat(2, 1fr); }
  .footer-nav { grid-template-columns: 1fr; }
  .philo-stack { display: flex; flex-direction: column; }
}

/* ── Language Toggle Button ────────────────────────────────── */
.lang-btn {
  font-family:    var(--ff-en-serif);
  font-style:     italic;
  font-size:      0.65rem;
  letter-spacing: 0.2em;
  padding:        5px 14px;
  border:         1px solid rgba(250, 250, 248, 0.3);
  color:          rgba(250, 250, 248, 0.6);
  cursor:         pointer;
  background:     none;
  transition:     border-color 0.3s var(--ease), color 0.3s var(--ease);
  margin-left:    8px;
  vertical-align: middle;
  line-height:    1;
}

/* スクロール後（明背景）*/
#navbar.scrolled .lang-btn {
  border-color: var(--color-fine-line);
  color:        var(--color-mist);
}

/* ホバー：透明背景 */
.lang-btn:hover {
  color:        var(--color-paper);
  border-color: rgba(250, 250, 248, 0.7);
}

/* ホバー：明背景 */
#navbar.scrolled .lang-btn:hover {
  color:        var(--color-sumi-deep);
  border-color: var(--color-sumi-deep);
}

/* モバイル */
@media (max-width: 768px) {
  .lang-btn {
    font-size:   0.6rem;
    padding:     4px 10px;
    margin-left: 6px;
  }
}

/* =============================================================
   IR Page
   ============================================================= */
.ir-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.ir-kpi-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-md) var(--space-sm);
  border: 1px solid var(--color-fine-line);
  background: var(--color-paper);
}
.ir-kpi-n {
  font-family: var(--ff-en-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300;
  color: var(--color-sumi-deep);
  line-height: 1;
}
.ir-kpi-l {
  margin-top: var(--space-xs);
  font-size: 0.72rem;
  color: var(--color-mist);
  letter-spacing: 0.08em;
  text-align: center;
}
.ir-biz-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.ir-biz-cell {
  padding: var(--space-md);
  border: 1px solid var(--color-fine-line);
  background: var(--color-cream);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.ir-biz-num {
  font-family: var(--ff-en-serif);
  font-size: 0.8rem;
  color: var(--color-whisper);
  letter-spacing: 0.15em;
}
.ir-biz-cell h3 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-sumi-deep);
  margin: 0;
}
.ir-biz-cell p {
  font-size: 0.82rem;
  color: var(--color-sumi-light);
  line-height: 1.7;
  flex: 1;
}
.ir-biz-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--color-sumi-deep);
  color: var(--color-sumi-deep);
  align-self: flex-start;
}
.ir-biz-tag--grow { border-color: #5a8a5a; color: #5a8a5a; }
.ir-biz-tag--dev  { border-color: #6A5078; color: #6A5078; }
.ir-biz-tag--plan { border-color: var(--color-whisper); color: var(--color-whisper); }

.ir-ip-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}
.ir-ip-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-fine-line);
  align-items: baseline;
}
.ir-ip-type {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-mist);
}
.ir-ip-item p {
  font-size: 0.88rem;
  color: var(--color-sumi-light);
  margin: 0;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .ir-kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .ir-biz-grid { grid-template-columns: 1fr; }
  .ir-ip-item  { grid-template-columns: 1fr; gap: var(--space-xs); }
}

/* =============================================================
   Careers Page
   ============================================================= */
.ca-values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.ca-val-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-md) var(--space-sm);
  border: 1px solid var(--color-fine-line);
  background: var(--color-cream);
  gap: var(--space-sm);
}
.ca-val-icon {
  width: 48px;
  height: 48px;
  color: var(--color-sumi-light);
  opacity: 0.7;
}
.ca-val-icon svg { width: 100%; height: 100%; }
.ca-val-cell h3 {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-sumi-deep);
  margin: 0;
}
.ca-val-cell p {
  font-size: 0.8rem;
  color: var(--color-sumi-light);
  line-height: 1.7;
  margin: 0;
}

.ca-roles-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-md);
}
.ca-role-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-fine-line);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.ca-role-head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.ca-role-tag {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  background: var(--color-sumi-deep);
  color: var(--color-paper);
}
.ca-role-type {
  font-size: 0.72rem;
  color: var(--color-mist);
  letter-spacing: 0.05em;
}
.ca-role-item h3 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-sumi-deep);
  margin: 0;
}
.ca-role-item p {
  font-size: 0.85rem;
  color: var(--color-sumi-light);
  line-height: 1.75;
  margin: 0;
}

@media (max-width: 768px) {
  .ca-values-grid { grid-template-columns: repeat(2, 1fr); }
}