/* ============================================================
   笑顔咲く研究所 — Home (Organizational Intelligence Platform)
   ダークな AI SaaS / データドリブン経営の世界観。
   ※このファイルは index.html 専用。privacy / terms / ona-safety は
     従来の css/style.css を継続利用するため、ここでは独立して定義する。
============================================================ */
:root {
  /* Base — 濃紺 */
  --bg:        #0B1020;
  --bg-2:      #0d1429;
  --panel:     #121a35;
  --panel-2:   #0f1730;
  --surface:   rgba(255, 255, 255, .035);
  --surface-2: rgba(255, 255, 255, .06);

  /* Accent — AIブルー / エメラルド */
  --blue:      #4F8CFF;
  --blue-soft: #7BA9FF;
  --emerald:   #00D1B2;
  --emerald-soft: #4fe6cf;
  --violet:    #9B8CFF;

  /* Text */
  --text:      #E8EDFF;
  --text-mid:  #B7C2E0;
  --text-sub:  #8A97BC;
  --text-dim:  #5D6B92;

  /* Lines */
  --line:      rgba(255, 255, 255, .09);
  --line-soft: rgba(255, 255, 255, .055);

  /* Gradients */
  --grad-blue:    linear-gradient(135deg, #4F8CFF 0%, #00D1B2 100%);
  --grad-blue-2:  linear-gradient(135deg, #5C7CFF 0%, #4F8CFF 50%, #00D1B2 100%);
  --grad-text:    linear-gradient(100deg, #7BA9FF 0%, #00D1B2 100%);
  --glow-blue:    0 0 0 1px rgba(79,140,255,.4), 0 18px 50px rgba(79,140,255,.28);

  --font-base: 'Noto Sans JP', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius:    18px;
  --radius-lg: 26px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --t: .45s var(--ease);
}

* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
::selection { background: rgba(79,140,255,.35); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.pc-only { display: inline; }
.section { padding: 120px 0; position: relative; }

/* ---- Eyebrow / Section heads ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--blue-soft);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, var(--blue), transparent);
}
.sec-head { max-width: 720px; margin-bottom: 64px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .eyebrow::before { display: none; }
.sec-title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -.02em;
  margin: 18px 0 0;
}
.sec-desc {
  margin-top: 20px;
  color: var(--text-sub);
  font-size: 1rem;
  line-height: 1.95;
}
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  font-size: .95rem; font-weight: 700;
  transition: var(--t);
  white-space: nowrap;
  position: relative;
}
.btn-primary {
  background: var(--grad-blue);
  color: #06122b;
  box-shadow: 0 14px 38px rgba(79,140,255,.32);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 50px rgba(0,209,178,.4); color: #06122b; }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: var(--surface-2); border-color: rgba(79,140,255,.5); transform: translateY(-3px); }
.btn-arrow svg { transition: transform var(--t); }
.btn-arrow:hover svg { transform: translateX(4px); }

/* ============================================================
   Header
============================================================ */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11, 16, 32, .72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--t), border-color var(--t);
}
.header.scrolled { background: rgba(9, 13, 27, .9); border-color: var(--line); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 78px; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { height: 40px; width: auto; border-radius: 8px; }
.brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name .bn-en {
  font-family: var(--mono); font-size: .92rem; font-weight: 700;
  letter-spacing: .14em; color: var(--text);
}
.brand-name .bn-jp { font-size: .66rem; color: var(--text-sub); letter-spacing: .12em; }

.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 9px 15px; border-radius: 10px;
  font-size: .9rem; font-weight: 500; color: var(--text-mid);
  transition: var(--t);
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--surface); }
.nav-sep { width: 1px; height: 20px; background: var(--line); margin: 0 8px; }
.nav-lang {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 3px; border: 1px solid var(--line); border-radius: 999px;
}
.lang-btn {
  font-size: .7rem; font-weight: 700; letter-spacing: .06em;
  padding: 5px 11px; border-radius: 999px; color: var(--text-sub); transition: var(--t);
}
.lang-btn:hover { color: var(--text); }
.lang-btn.is-active { background: var(--blue); color: #06122b; }
.nav-cta {
  margin-left: 6px; padding: 10px 20px; border-radius: 999px;
  background: var(--grad-blue); color: #06122b !important; font-size: .88rem; font-weight: 700;
  transition: var(--t);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(79,140,255,.4); }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--t); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; opacity: .9;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60% 50% at 78% 8%,  rgba(79,140,255,.20), transparent 60%),
    radial-gradient(50% 45% at 12% 95%, rgba(0,209,178,.16), transparent 60%),
    radial-gradient(40% 40% at 50% 50%, rgba(155,140,255,.08), transparent 70%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
}
.hero-inner { position: relative; z-index: 2; max-width: 880px; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px 7px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: .78rem; font-weight: 600; color: var(--text-mid);
  margin-bottom: 30px; backdrop-filter: blur(8px);
}
.hero-pill .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--emerald);
  box-shadow: 0 0 0 0 rgba(0,209,178,.6); animation: ping 2.4s infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(0,209,178,.5); }
  70% { box-shadow: 0 0 0 8px rgba(0,209,178,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,209,178,0); }
}
.hero-pill .pill-en { font-family: var(--mono); letter-spacing: .12em; color: var(--blue-soft); }
.hero-title {
  font-size: clamp(2.4rem, 6.6vw, 4.6rem);
  font-weight: 900; line-height: 1.18; letter-spacing: -.03em;
  margin-bottom: 28px;
}
.hero-title .line2 { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead {
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  color: var(--text-mid); line-height: 1.95; max-width: 600px; margin-bottom: 40px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 10px; }
.trust-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: .8rem; font-weight: 600; color: var(--text-mid);
}
.trust-chip svg { width: 15px; height: 15px; color: var(--emerald); flex-shrink: 0; }

.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .62rem; letter-spacing: .2em; color: var(--text-dim);
}
.hero-scroll .bar { width: 1px; height: 40px; background: linear-gradient(var(--blue), transparent); animation: scrollDown 2s infinite; }
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   Logos / capability strip
============================================================ */
.capstrip { border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); background: var(--bg-2); }
.capstrip-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.cap {
  padding: 38px 28px; border-left: 1px solid var(--line-soft);
}
.cap:first-child { border-left: none; }
.cap-k { font-family: var(--mono); font-size: 1.05rem; font-weight: 700; color: var(--emerald); letter-spacing: .04em; }
.cap-l { margin-top: 8px; font-size: .85rem; color: var(--text-sub); line-height: 1.7; }

/* ============================================================
   Services — 4 pillars
============================================================ */
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.svc-card {
  position: relative; overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  transition: var(--t);
}
.svc-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(120% 80% at 0% 0%, rgba(79,140,255,.10), transparent 55%);
  opacity: 0; transition: var(--t); pointer-events: none;
}
.svc-card:hover { transform: translateY(-6px); border-color: rgba(79,140,255,.4); box-shadow: 0 24px 60px rgba(0,0,0,.45); }
.svc-card:hover::after { opacity: 1; }
.svc-top { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.svc-ic {
  width: 56px; height: 56px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--blue); font-size: 1.5rem;
}
.svc-ic svg { width: 28px; height: 28px; }
.svc-num { font-family: var(--mono); font-size: .72rem; color: var(--text-dim); letter-spacing: .1em; margin-left: auto; }
.svc-title { font-size: 1.22rem; font-weight: 800; margin-bottom: 10px; letter-spacing: -.01em; }
.svc-en { font-family: var(--mono); font-size: .72rem; font-weight: 600; color: var(--blue-soft); letter-spacing: .1em; display: block; margin-bottom: 4px; }
.svc-desc { font-size: .92rem; color: var(--text-sub); line-height: 1.85; margin-bottom: 18px; }
.svc-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.svc-tags span {
  font-family: var(--mono); font-size: .72rem; font-weight: 600;
  padding: 4px 11px; border-radius: 7px;
  background: var(--surface); border: 1px solid var(--line); color: var(--text-mid);
}

/* ============================================================
   Dashboard mockup
============================================================ */
.dash { background: var(--bg-2); border-top: 1px solid var(--line-soft); }
.dash-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.dash-points { margin-top: 30px; display: flex; flex-direction: column; gap: 16px; }
.dash-point { display: flex; gap: 14px; align-items: flex-start; }
.dash-point .pt-ic { width: 30px; height: 30px; flex-shrink: 0; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--line); display: grid; place-items: center; color: var(--emerald); }
.dash-point .pt-ic svg { width: 16px; height: 16px; }
.dash-point .pt-t { font-size: .95rem; font-weight: 700; color: var(--text); }
.dash-point .pt-d { font-size: .85rem; color: var(--text-sub); line-height: 1.7; }

/* Mock window */
.mock {
  position: relative;
  background: linear-gradient(180deg, #0e1631, #0b1226);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 40px 90px rgba(0,0,0,.55);
  overflow: hidden;
}
.mock::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(80% 60% at 80% 0%, rgba(79,140,255,.12), transparent 55%);
}
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 14px 18px; border-bottom: 1px solid var(--line-soft); }
.mock-bar i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.mock-bar i:nth-child(1) { background: #ff5f57; }
.mock-bar i:nth-child(2) { background: #febc2e; }
.mock-bar i:nth-child(3) { background: #28c840; }
.mock-bar .mb-title { margin-left: 10px; font-family: var(--mono); font-size: .72rem; color: var(--text-dim); letter-spacing: .08em; }
.mock-bar .mb-live { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-size: .68rem; color: var(--emerald); font-family: var(--mono); }
.mock-bar .mb-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--emerald); animation: ping 2s infinite; }
.mock-body { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1px; background: var(--line-soft); }
.mock-cell { background: var(--panel-2); padding: 20px; }
.mock-cell .mc-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.mock-cell .mc-label { font-size: .72rem; font-family: var(--mono); letter-spacing: .1em; color: var(--text-sub); text-transform: uppercase; }
.mock-cell .mc-badge { font-size: .64rem; font-family: var(--mono); padding: 2px 8px; border-radius: 6px; background: rgba(79,140,255,.14); color: var(--blue-soft); }

/* network mini graph (SVG) */
.net-svg { width: 100%; height: auto; display: block; }
.net-svg .edge { stroke: rgba(123,169,255,.4); stroke-width: 1.2; }
.net-svg .edge.hot { stroke: rgba(0,209,178,.7); stroke-width: 1.6; animation: edgePulse 3s ease-in-out infinite; }
@keyframes edgePulse { 0%,100% { opacity: .35; } 50% { opacity: 1; } }
.net-svg .node { fill: #7BA9FF; }
.net-svg .node.hub { fill: #00D1B2; }
.net-svg .node.iso { fill: #ff8e72; }
.net-svg .ring { fill: none; stroke: rgba(0,209,178,.5); stroke-width: 1; animation: ringPulse 3s ease-out infinite; }
@keyframes ringPulse { 0% { r: 5; opacity: .8; } 100% { r: 18; opacity: 0; } }

/* bars */
.bars { display: flex; align-items: flex-end; gap: 9px; height: 96px; }
.bars .bar { flex: 1; border-radius: 6px 6px 0 0; background: linear-gradient(180deg, var(--blue), rgba(79,140,255,.2)); position: relative; animation: growBar 1.2s var(--ease) both; }
.bars .bar.up { background: linear-gradient(180deg, var(--emerald), rgba(0,209,178,.2)); }
@keyframes growBar { from { transform: scaleY(.2); transform-origin: bottom; opacity: .3; } to { transform: scaleY(1); opacity: 1; } }
.mc-foot { margin-top: 12px; display: flex; justify-content: space-between; font-family: var(--mono); font-size: .66rem; color: var(--text-dim); }

/* risk gauge rows */
.risk-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.risk-row:last-child { margin-bottom: 0; }
.risk-row .rk-name { font-size: .78rem; color: var(--text-mid); width: 64px; flex-shrink: 0; }
.risk-row .rk-track { flex: 1; height: 7px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.risk-row .rk-fill { height: 100%; border-radius: 999px; background: var(--grad-blue); animation: growBarX 1.2s var(--ease) both; }
.risk-row .rk-fill.warn { background: linear-gradient(90deg, #ffb020, #ff7a59); }
.risk-row .rk-fill.bad { background: linear-gradient(90deg, #ff7a59, #ff5470); }
@keyframes growBarX { from { transform: scaleX(.05); transform-origin: left; } to { transform: scaleX(1); } }
.risk-row .rk-val { font-family: var(--mono); font-size: .72rem; color: var(--text-sub); width: 38px; text-align: right; }

/* AI report card (full width row) */
.mock-ai { grid-column: 1 / -1; background: var(--panel-2); padding: 18px 20px; display: flex; gap: 14px; align-items: flex-start; border-top: 1px solid var(--line-soft); }
.mock-ai .ai-ic { width: 34px; height: 34px; flex-shrink: 0; border-radius: 9px; background: var(--grad-blue); display: grid; place-items: center; color: #06122b; font-size: 1rem; }
.mock-ai .ai-body p { font-size: .82rem; color: var(--text-mid); line-height: 1.7; }
.mock-ai .ai-body .ai-label { font-family: var(--mono); font-size: .64rem; letter-spacing: .12em; color: var(--blue-soft); text-transform: uppercase; margin-bottom: 4px; }
.mock-ai .ai-typed::after { content: "▍"; color: var(--emerald); animation: caret 1s step-end infinite; }
@keyframes caret { 50% { opacity: 0; } }

/* ============================================================
   Philosophy band
============================================================ */
.philo { position: relative; overflow: hidden; text-align: center; padding: 130px 0; }
.philo-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(50% 60% at 50% 0%, rgba(79,140,255,.16), transparent 60%),
    radial-gradient(40% 50% at 80% 100%, rgba(0,209,178,.12), transparent 60%);
}
.philo-inner { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.philo-title { font-size: clamp(1.7rem, 4.2vw, 2.8rem); font-weight: 900; line-height: 1.5; letter-spacing: -.02em; margin: 22px 0 24px; }
.philo-sub { font-size: clamp(.96rem, 1.5vw, 1.1rem); color: var(--text-mid); line-height: 2; max-width: 680px; margin: 0 auto 32px; }
.philo-sub strong { color: var(--emerald); font-weight: 700; }

/* ============================================================
   About — expertise
============================================================ */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.about-lead { font-size: 1.15rem; font-weight: 700; color: var(--text); line-height: 1.75; margin: 22px 0 18px; }
.about-body { color: var(--text-sub); font-size: .95rem; line-height: 1.9; margin-bottom: 14px; }
.cred-list { display: flex; flex-direction: column; gap: 16px; }
.cred {
  display: flex; gap: 18px; align-items: flex-start;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 26px; transition: var(--t);
}
.cred:hover { transform: translateY(-4px); border-color: rgba(79,140,255,.35); box-shadow: 0 20px 50px rgba(0,0,0,.4); }
.cred-ic { width: 50px; height: 50px; flex-shrink: 0; border-radius: 13px; display: grid; place-items: center; font-size: 1.5rem; background: var(--surface-2); border: 1px solid var(--line); }
.cred-t { font-size: 1rem; font-weight: 800; color: var(--text); margin-bottom: 7px; line-height: 1.5; }
.cred-d { font-size: .86rem; color: var(--text-sub); line-height: 1.8; }

/* ============================================================
   Tech stack
============================================================ */
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.tech-cat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; transition: var(--t); }
.tech-cat:hover { border-color: rgba(79,140,255,.35); transform: translateY(-4px); }
.tech-cat-h { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.tech-cat-h .tc-ic { font-size: 1.35rem; }
.tech-cat-h h3 { font-size: .98rem; font-weight: 700; }
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-tags span {
  font-family: var(--mono); font-size: .76rem; font-weight: 600;
  padding: 5px 13px; border-radius: 7px;
  background: var(--surface); border: 1px solid var(--line); color: var(--blue-soft);
  transition: var(--t);
}
.tech-tags span:hover { background: rgba(79,140,255,.14); border-color: rgba(79,140,255,.4); }

/* ============================================================
   Research
============================================================ */
.research { background: var(--bg-2); border-top: 1px solid var(--line-soft); }
.rsrch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rsrch-card {
  display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: var(--t); position: relative; overflow: hidden;
}
.rsrch-card:hover { transform: translateY(-6px); border-color: rgba(0,209,178,.4); box-shadow: 0 24px 60px rgba(0,0,0,.4); }
.rsrch-kind { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--emerald); margin-bottom: 14px; }
.rsrch-t { font-size: 1.08rem; font-weight: 800; line-height: 1.5; margin-bottom: 10px; }
.rsrch-d { font-size: .86rem; color: var(--text-sub); line-height: 1.8; flex: 1; margin-bottom: 18px; }
.rsrch-link { font-size: .85rem; font-weight: 700; color: var(--blue-soft); display: inline-flex; align-items: center; gap: 7px; transition: var(--t); }
.rsrch-link svg { transition: transform var(--t); }
.rsrch-card:hover .rsrch-link svg { transform: translateX(4px); }
.rsrch-soon { font-size: .8rem; font-weight: 700; color: var(--text-dim); display: inline-flex; align-items: center; gap: 8px; }
.rsrch-soon::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--text-dim); }

/* ============================================================
   CTA banner (pulse)
============================================================ */
.cta-band { padding: 100px 0; }
.cta-box {
  position: relative; overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(79,140,255,.3);
  background: linear-gradient(135deg, rgba(79,140,255,.14), rgba(0,209,178,.08));
  padding: 56px 52px;
  display: flex; align-items: center; justify-content: space-between; gap: 36px; flex-wrap: wrap;
}
.cta-box::before { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(0,209,178,.25), transparent 65%); pointer-events: none; }
.cta-box .cta-l { flex: 1; min-width: 300px; position: relative; z-index: 1; }
.cta-tag { display: inline-flex; gap: 8px; align-items: center; margin-bottom: 14px; }
.cta-tag span { font-family: var(--mono); font-size: .68rem; font-weight: 700; letter-spacing: .12em; padding: 4px 12px; border-radius: 999px; }
.cta-tag .t1 { background: var(--surface-2); border: 1px solid var(--line); color: var(--blue-soft); }
.cta-tag .t2 { background: var(--emerald); color: #06122b; }
.cta-box h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 900; margin-bottom: 12px; letter-spacing: -.01em; }
.cta-box p { color: var(--text-mid); font-size: .95rem; line-height: 1.85; max-width: 540px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ============================================================
   Contact
============================================================ */
.contact-wrap { max-width: 760px; margin: 0 auto; }
.contact-email {
  display: flex; align-items: center; justify-content: space-between; gap: 22px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 30px; margin-bottom: 24px;
}
.contact-email .ce-label { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; color: var(--blue-soft); margin-bottom: 4px; }
.contact-email .ce-lead { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.contact-email a.ce-mail { font-family: var(--mono); font-size: 1.05rem; font-weight: 700; color: var(--emerald); word-break: break-all; }
.contact-form { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.form-row .form-group { margin-bottom: 0; }
.form-label { font-size: .84rem; font-weight: 700; color: var(--text-mid); display: flex; align-items: center; gap: 8px; }
.required { font-size: .66rem; background: var(--blue); color: #06122b; padding: 2px 8px; border-radius: 999px; }
.form-input {
  width: 100%; padding: 13px 16px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: .95rem; font-family: var(--font-base); color: var(--text); transition: var(--t);
}
.form-input::placeholder { color: var(--text-dim); }
.form-input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(79,140,255,.18); background: var(--panel-2); }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%234F8CFF' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
.form-select option { background: var(--panel); color: var(--text); }
.form-textarea { min-height: 150px; resize: vertical; }
.form-submit { text-align: center; margin-top: 8px; }
.form-message { text-align: center; margin-top: 16px; font-size: .9rem; min-height: 24px; }
.form-message.success { color: var(--emerald); }
.form-message.error { color: #ff7a8a; }

/* ============================================================
   Footer
============================================================ */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); }
.footer-inner { display: grid; grid-template-columns: 300px 1fr; gap: 64px; padding: 72px 0; }
.footer-brand .fb-row { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-logo { height: 40px; border-radius: 8px; }
.footer-brand .fb-en { font-family: var(--mono); font-size: .92rem; font-weight: 700; letter-spacing: .14em; color: var(--text); }
.footer-brand .fb-jp { font-size: .66rem; color: var(--text-sub); letter-spacing: .1em; }
.footer-tagline { font-size: .86rem; color: var(--text-sub); line-height: 1.85; }
.footer-nav { display: flex; gap: 56px; justify-content: flex-end; flex-wrap: wrap; }
.footer-col-t { font-family: var(--mono); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mid); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: .88rem; color: var(--text-sub); transition: var(--t); }
.footer-col a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--line-soft); padding: 22px 0; text-align: center; }
.footer-legal { font-size: .8rem; margin-bottom: 8px; }
.footer-legal a { color: var(--text-sub); transition: var(--t); }
.footer-legal a:hover { color: var(--text); }
.footer-legal-sep { color: var(--text-dim); margin: 0 8px; }
.footer-copy { font-size: .76rem; color: var(--text-dim); }

/* ============================================================
   Scroll reveal
============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-canvas, .net-svg .ring, .net-svg .edge.hot, .bars .bar, .rk-fill { animation: none !important; }
}

/* ============================================================
   Responsive
============================================================ */
@media (max-width: 1024px) {
  .dash-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .rsrch-grid { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .nav {
    position: fixed; top: var(--nav-top, 78px); left: 0; right: 0;
    background: rgba(10, 14, 28, .98); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    padding: 10px 20px 24px;
    transform: translateY(-115%); opacity: 0; pointer-events: none;
    transition: var(--t); z-index: 99;
    max-height: calc(100vh - var(--nav-top, 78px)); overflow-y: auto;
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { padding: 15px 16px; font-size: 1rem; border-radius: 12px; }
  .nav-sep { display: none; }
  .nav-lang { align-self: center; margin: 12px 0; }
  .nav-cta { margin: 8px 0 0; text-align: center; padding: 15px; }
  .hamburger { display: flex; }
  .svc-grid, .tech-grid { grid-template-columns: 1fr; }
  .capstrip-inner { grid-template-columns: repeat(2, 1fr); }
  .cap:nth-child(odd) { border-left: none; }
  .cap:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
}
@media (max-width: 600px) {
  .section { padding: 84px 0; }
  .container { padding: 0 20px; }
  .hero { padding: 110px 0 70px; min-height: auto; }
  .mock-body { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-nav { justify-content: flex-start; gap: 36px; }
  .cta-box { padding: 38px 28px; }
  .hero-scroll { display: none; }
}