/* ============================================================
   I'LL VISION — Premium Design System v2
   Navy #0A192F × Gold #FF6B35 × Sky #0EA5E9
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=Rajdhani:wght@500;600;700&family=Noto+Serif+JP:wght@400;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

/* ── CSS Variables ── */
:root {
  --navy:         #0A192F;
  --navy-mid:     #112240;
  --navy-light:   #1E3A5F;
  --accent:       #0EA5E9;
  --gold:         #FF6B35;
  --gold-light:   #FF8C5A;
  --gold-pale:    rgba(255,107,53,0.10);
  --gold-border:  rgba(255,107,53,0.28);
  --white:        #FFFFFF;
  --bg:           #F8F9FA;
  --bg-warm:      #FAF7F2;
  --bg-card:      #FFFFFF;
  --dark:         #0A192F;
  --dark-section: #112240;
  --dark-footer:  #060F1E;
  --text:         #0D1B2E;
  --text-muted:   #4A6080;
  --text-light:   #8BA3C7;
  --border:       #E2E8F0;
  --border-light: rgba(255,107,53,0.20);

  /* Legacy subpage compat */
  --ink:         #F8F9FA;
  --ink-2:       #FFFFFF;
  --ink-3:       #FFFFFF;
  --ink-4:       #F8F9FA;
  --off-white:   #0D1B2E;
  --muted:       #4A6080;
  --border-2:    #E2E8F0;

  --font-heading: 'Shippori Mincho', 'Noto Serif JP', serif;
  --font-serif:   'Noto Serif JP', serif;
  --font-body:    'Noto Sans JP', 'Inter', sans-serif;
  --font-display: 'Inter', 'Rajdhani', sans-serif;

  --nav-h:       72px;
  --section-gap: clamp(96px, 12vw, 160px);
  --container:   min(1200px, 92vw);
  --ease:        cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Container ── */
.container { width: var(--container); margin: 0 auto; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 8px;
  transition: background 0.25s var(--ease), transform 0.2s, box-shadow 0.25s;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.35);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 34px;
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.25s, color 0.25s, transform 0.2s;
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 8px;
  transition: background 0.25s, transform 0.2s, box-shadow 0.25s;
}
.btn-white:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255,107,53,0.38);
}

/* ── Section Label ── */
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

/* ── Section Title ── */
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 3.8vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

/* ── Gold Line ── */
.gold-line {
  width: 48px;
  height: 3px;
  background: var(--gold);
  margin: 20px 0 28px;
}

/* ── Reveal Animations ── */
.reveal,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}
.reveal           { transform: translateY(30px); }
.reveal-left      { transform: translateX(-36px); }
.reveal-right     { transform: translateX(36px); }
.reveal.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
  opacity: 1;
  transform: none;
}
.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }

/* ══════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.navbar.scrolled {
  box-shadow: 0 2px 24px rgba(0,0,0,0.07);
  border-color: var(--border);
}
.nav-inner {
  width: var(--container);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  gap: 2px;
}
.logo-ill {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
}
.logo-vision {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: 0.08em;
}
.logo-sub {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.logo { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; letter-spacing: 0.06em; }
.logo span { color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 2px;
  transition: color 0.2s;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--gold); }
.nav-cta-btn {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  padding: 10px 20px !important;
  background: var(--gold) !important;
  color: var(--white) !important;
  border-radius: 2px;
  font-weight: 700 !important;
  transition: background 0.25s, transform 0.2s !important;
}
.nav-cta-btn:hover {
  background: var(--gold-light) !important;
  transform: translateY(-1px);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 34px;
  padding: 4px;
  cursor: pointer;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.35s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Full-screen Mobile Menu ── */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: calc(var(--nav-h) + 20px) 40px 40px;
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.45s var(--ease-out), opacity 0.3s;
  z-index: 999;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 400px;
  border-top: 1px solid var(--border);
}
.mobile-menu-nav a {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 5vw, 1.6rem);
  font-weight: 700;
  color: var(--text);
  padding: 20px 0;
  letter-spacing: 0.03em;
  transition: color 0.2s;
  text-align: center;
  width: 100%;
  border-bottom: 1px solid var(--border);
  display: block;
}
.mobile-menu-nav a:hover { color: var(--gold); }
.mobile-menu-cta { color: var(--gold) !important; }
.mobile-menu-bottom {
  margin-top: 36px;
  text-align: center;
}
.mobile-menu-tel {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  transition: color 0.2s;
}
.mobile-menu-tel:hover { color: var(--gold); }
.mobile-menu-hours {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* ══════════════════════════════════════════
   HERO — Full-screen + Glassmorphism
══════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--navy);
}
/* Photo background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/generated/hero-premium.png'),
                    url('../img/solar-panel-hero.png');
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  opacity: 0.30;
  z-index: 0;
}
/* Navy diagonal band ╲ */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #0A0A0F;
  clip-path: polygon(0 55%, 100% 72%, 100% 92%, 0 75%);
  z-index: 2;
  pointer-events: none;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
/* Grid overlay removed */
.hero-grid-overlay { display: none; }
/* Orange diagonal accent band */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: #FF6B35;
  clip-path: polygon(0 75%, 100% 55%, 100% 72%, 0 92%);
  z-index: 2;
  pointer-events: none;
}
.hero-bg-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 3%;
  font-family: 'Inter', var(--font-display);
  font-size: clamp(8rem, 24vw, 32rem);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.06);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 4;
  letter-spacing: 0.02em;
  line-height: 1;
  will-change: transform;
}
.hero-content {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 60px) 20px 100px;
  width: 100%;
  will-change: transform, opacity;
}

/* ── Glassmorphism Card ── */
.hero-glass {
  position: relative;
  background: rgba(10, 25, 47, 0.55);
  backdrop-filter: blur(28px) saturate(1.4);
  -webkit-backdrop-filter: blur(28px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 16px;
  padding: clamp(40px, 6vw, 72px) clamp(40px, 6vw, 88px);
  max-width: 680px;
  width: 100%;
  text-align: center;
  box-shadow:
    0 32px 80px rgba(6,15,30,0.50),
    inset 0 1px 0 rgba(255,255,255,0.08);
}
.hero-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,107,53,0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
/* Ensure all card content sits above the ::before shimmer */
.hero-glass > * {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 32px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-family: 'Inter', sans-serif;
}
.hero-eyebrow::before,
.hero-eyebrow::after {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
  flex-shrink: 0;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3.2rem, 9.5vw, 7.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.0;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.05em;
}
.hero-line {
  display: block;
  white-space: nowrap;
}
.hero-x {
  color: var(--gold);
  font-style: normal;
  font-size: 0.55em;
  line-height: 1.2;
  display: block;
  letter-spacing: 0.05em;
  align-self: center;
}
.hero-sub {
  font-size: clamp(0.88rem, 1.5vw, 1rem);
  color: rgba(255,255,255,0.72);
  line-height: 2;
  margin-bottom: 48px;
  letter-spacing: 0.04em;
}
.hero-glass .btn-outline {
  color: rgba(255,255,255,0.82);
  border-color: rgba(255,255,255,0.32);
}
.hero-glass .btn-outline:hover {
  color: var(--gold);
  border-color: var(--gold);
}
.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.40);
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
}
.hero-scroll-line {
  width: 1px;
  height: 52px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  50.1%{ transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ══════════════════════════════════════════
   DIAGONAL BAND
══════════════════════════════════════════ */
.diagonal-band {
  height: 300px;
  background: linear-gradient(90deg, #E55520 0%, var(--gold) 35%, var(--gold-light) 70%, var(--gold) 100%);
  clip-path: polygon(0 0, 100% 44%, 100% 100%, 0 56%);
  position: relative;
  z-index: 2;
  overflow: hidden;
  /* Wipe-in: scaleX prevents any horizontal overflow */
  transform: scaleX(0);
  transform-origin: left center;
  opacity: 0;
  transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}
.diagonal-band.band-visible {
  transform: scaleX(1);
  opacity: 1;
}
.diagonal-band-reverse {
  clip-path: polygon(0 44%, 100% 0, 100% 56%, 0 100%);
}
.band-track {
  position: absolute;
  top: 50%;
  left: 0;
  display: flex;
  transform: translateY(-50%);
  width: max-content;
  animation: band-marquee 28s linear infinite;
}
.band-track-reverse { animation-direction: reverse; }
.band-track span {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.60);
  white-space: nowrap;
  text-transform: uppercase;
}
@keyframes band-marquee {
  from { transform: translateY(-50%) translateX(0); }
  to   { transform: translateY(-50%) translateX(-50%); }
}

/* mobile: shorter band */
@media (max-width: 768px) {
  .diagonal-band { height: 80px; }
}

/* ══════════════════════════════════════════
   PARALLAX DIVIDERS
══════════════════════════════════════════ */
.parallax-divider {
  height: 380px;
  background-attachment: scroll;
  background-size: cover;
  background-position: center 50%;
  position: relative;
  overflow: hidden;
}
.parallax-divider::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.28);
}
.parallax-divider-1 { background-image: url('../img/generated/parallax-intro.png'); }
.parallax-divider-2 { background-image: url('../img/generated/parallax-electrical.png'); }
.parallax-divider-3 { background-image: url('../img/generated/parallax-solar.png'); }
.parallax-divider-4 { background-image: url('../img/generated/parallax-city.png'); }
@media (max-width: 768px) {
  .parallax-divider { height: 240px; }
}

/* ══════════════════════════════════════════
   SECTION SHARED + WATERMARKS
══════════════════════════════════════════ */
.section {
  padding: var(--section-gap) 0;
  position: relative;
  overflow: hidden;
}
.section-services::before,
.section-about::before,
.section-flow::before,
.section-numbers::before {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(10rem, 26vw, 34rem);
  font-weight: 700;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  letter-spacing: 0.06em;
  line-height: 1;
}
/* ライト統一: ゴールド */
.section-services::before,
.section-flow::before,
.section-numbers::before,
.section-about::before {
  color: rgba(200, 146, 42, 0.07);
  -webkit-text-stroke: none;
}
.section-services::before { content: 'SERVICES'; left: 58%; }
.section-about::before    { content: 'ABOUT US'; left: 42%; }
.section-flow::before     { content: 'FLOW';     left: 60%; }
.section-numbers::before  { content: 'RECORD';   left: 50%; }
.section > .container { position: relative; z-index: 1; }

/* diagonal line decoration removed */

/* ══════════════════════════════════════════
   SERVICES
══════════════════════════════════════════ */
.section-services { background: var(--bg); }
.section-services .section-label { color: var(--gold); }
.section-services .section-title { color: var(--text); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
/* Asymmetric layout: card1 wide-left, card6 wide-right */
.services-grid .service-card:nth-child(1) { grid-column: span 2; }
.services-grid .service-card:nth-child(6) { grid-column: span 2; }

/* Wide cards: 16:9 photo, compact body */
.services-grid .service-card:nth-child(1) .service-card-img-wrap,
.services-grid .service-card:nth-child(6) .service-card-img-wrap {
  aspect-ratio: 16 / 7;
}
/* Narrow cards: 4:3 photo */
.services-grid .service-card:nth-child(2) .service-card-img-wrap,
.services-grid .service-card:nth-child(3) .service-card-img-wrap,
.services-grid .service-card:nth-child(4) .service-card-img-wrap,
.services-grid .service-card:nth-child(5) .service-card-img-wrap {
  aspect-ratio: 4 / 3;
}
.services-grid .service-card { min-height: 0; }

.service-card {
  background: var(--white);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 2px 16px rgba(10,25,47,0.06);
  transition: box-shadow 0.40s ease-in-out, transform 0.40s ease-in-out;
  position: relative;
}
.service-card:hover {
  box-shadow: 0 20px 56px rgba(10,25,47,0.14);
  transform: translateY(-6px);
  z-index: 2;
}
.service-card-img-wrap {
  overflow: hidden;
  aspect-ratio: 16/10;
  flex-shrink: 0;
}
.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s ease-in-out, filter 0.4s;
}
.service-card:hover .service-card-img {
  transform: scale(1.06);
  filter: brightness(1.04);
}
.service-card-body {
  padding: 24px 22px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--white);
}
.service-card-num {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-bottom: 10px;
  font-weight: 600;
}
.service-card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.4;
}
.service-card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.85;
  flex: 1;
}
.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--gold);
  margin-top: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, gap 0.2s;
}
.service-card:hover .service-card-link {
  border-color: var(--gold);
  gap: 10px;
}

/* ══════════════════════════════════════════
   NUMBERS
══════════════════════════════════════════ */
.section-numbers {
  background: var(--navy);
  border-top: none;
  border-bottom: none;
}
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  z-index: 1;
}
.number-item {
  padding: 64px 28px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.08);
  position: relative;
}
.number-item::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--gold);
  transition: width 0.5s var(--ease-out);
}
.number-item:hover::after { width: 36px; }
.number-item:last-child { border-right: none; }
.section-numbers .number-label { color: rgba(255,255,255,0.48); }
.number-val {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 4.8rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.number-val-text {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: 0.03em;
}
.number-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* ══════════════════════════════════════════
   ABOUT
══════════════════════════════════════════ */
.section-about { background: var(--white); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.about-tag {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.about-tag::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--gold);
}
.about-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 24px;
}
.about-heading span { color: var(--gold); }
.about-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 2.1;
}
.about-image-wrap {
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: 0 20px 64px rgba(0,0,0,0.12);
}
.about-image-wrap img {
  width: 100%;
  height: 115%;
  object-fit: cover;
  display: block;
  will-change: transform;
}

/* ══════════════════════════════════════════
   FLOW
══════════════════════════════════════════ */
.section-flow { background: var(--bg); }
.section-flow .section-label { color: var(--gold); }
.section-flow .section-title { color: var(--text); }
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  z-index: 1;
}
.flow-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,107,53,0.30) 20%, rgba(255,107,53,0.30) 80%, transparent);
  z-index: 0;
}
.flow-step {
  text-align: center;
  padding: 0 20px;
  position: relative;
}
.flow-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  letter-spacing: 0.05em;
  box-shadow: 0 6px 24px rgba(255,107,53,0.30);
  transition: transform 0.3s, box-shadow 0.3s;
}
.flow-step:hover .flow-step-num {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255,107,53,0.40);
}
.flow-step-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.flow-step-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ══════════════════════════════════════════
   CTA BANNER
══════════════════════════════════════════ */
.cta-banner {
  position: relative;
  background: var(--navy);
  padding: clamp(80px,10vw,140px) 0;
  text-align: center;
  overflow: hidden;
}
.cta-banner-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 70% at 15% 50%, rgba(14,165,233,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 55% 70% at 85% 50%, rgba(255,107,53,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.4;
}
.cta-sub {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 48px;
  letter-spacing: 0.05em;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.cta-tel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}
.cta-tel-label {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.1em;
}
.cta-tel-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.05em;
  transition: opacity 0.2s;
}
.cta-tel-num:hover { opacity: 0.85; }
.cta-tel-hours {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
}

/* Hero LINE button */
.btn-line-hero {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 15px 28px;
  background: #06C755;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 2px;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.2s;
}
.btn-line-hero:hover { opacity: 0.88; transform: translateY(-2px); }

/* LINE CTA button */
.btn-line-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: #06C755;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 2px;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.2s;
}
.btn-line-cta:hover { opacity: 0.88; transform: translateY(-2px); }

/* ══════════════════════════════════════════
   KNOWLEDGE — 電気のトリセツ
══════════════════════════════════════════ */
.section-knowledge { background: var(--white); }
.section-knowledge::before { content: 'KNOWLEDGE'; left: 52%; }

/* ── Accordion ── */
.knowledge-accordion {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(10,25,47,0.06);
}
.accordion-item {
  border-bottom: 1px solid var(--border);
}
.accordion-item:last-child { border-bottom: none; }

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 36px;
  background: var(--white);
  text-align: left;
  cursor: pointer;
  gap: 20px;
  transition: background 0.2s;
}
.accordion-trigger:hover { background: #FAFBFC; }
.accordion-item.open > .accordion-trigger { background: var(--white); }

.accordion-trigger-left {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  min-width: 0;
}
.accordion-icon-wrap {
  width: 52px;
  height: 52px;
  background: rgba(255,107,53,0.09);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  flex-shrink: 0;
  transition: background 0.2s;
}
.accordion-item.open .accordion-icon-wrap {
  background: var(--gold);
  color: var(--white);
}
.accordion-cat {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  font-family: 'Inter', var(--font-display);
  margin-bottom: 5px;
}
.accordion-h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.accordion-chevron {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--text-light);
  transition: transform 0.35s var(--ease), color 0.2s;
}
.accordion-item.open .accordion-chevron {
  transform: rotate(180deg);
  color: var(--gold);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease-out);
}
.accordion-item.open .accordion-body {
  max-height: 1400px;
}
.accordion-body-inner {
  padding: 8px 36px 36px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Legacy card-title (inside accordion body) */
.knowledge-card-head { display: none; }
.knowledge-card-title { display: none; }

/* 1. 基礎知識 */
.knowledge-formula {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #0E0E0E;
  padding: 20px;
  border-radius: 2px;
}
.knowledge-formula span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  line-height: 1;
}
.knowledge-formula small {
  font-size: 0.6rem;
  font-family: var(--font-body);
  letter-spacing: 0.08em;
  opacity: 0.7;
  font-weight: 400;
}
.kf-w { color: #FF8C5A; }
.kf-v { color: #7EC8E3; }
.kf-a { color: #F08080; }
.kf-eq { color: rgba(255,255,255,0.5); font-size: 1.6rem; }

.knowledge-note {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.knowledge-note strong { color: var(--text); }

.knowledge-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}
.knowledge-table th {
  background: #111;
  color: rgba(255,255,255,0.7);
  padding: 8px 10px;
  text-align: left;
  font-weight: 600;
  letter-spacing: 0.05em;
  font-size: 0.7rem;
}
.knowledge-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.knowledge-table tr:last-child td { border-bottom: none; }
.knowledge-table tr:nth-child(even) td { background: var(--bg); }
.knowledge-table td:not(:first-child) { color: var(--gold); font-weight: 600; font-family: var(--font-display); }

.knowledge-sub { margin-top: 4px; }
.knowledge-sub-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.knowledge-amp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.knowledge-amp-grid span {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.knowledge-amp-grid em {
  font-style: normal;
  color: var(--gold);
  font-weight: 700;
  font-size: 0.82rem;
}

/* 2. ブレーカー */
.knowledge-breaker-list { display: flex; flex-direction: column; gap: 10px; }
.kb-item {
  padding: 14px 16px;
  border-left: 3px solid var(--border);
  background: var(--bg);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.kb-item strong { color: var(--text); }
.kb-amp { border-color: #FF8C5A; }
.kb-safe { border-color: #7EC8E3; }
.kb-leak { border-color: #F08080; }
.kb-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 6px;
  background: #111;
  color: rgba(255,255,255,0.8);
}
.kb-amp .kb-badge { color: #FF8C5A; }
.kb-safe .kb-badge { color: #7EC8E3; }
.kb-leak .kb-badge { color: #F08080; }

.knowledge-cta-inline {
  background: rgba(255,107,53,0.06);
  border: 1px solid var(--gold-border);
  padding: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.knowledge-cta-inline strong { color: var(--text); }
.knowledge-cta-inline p { margin-bottom: 12px; }

.knowledge-line-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #06C755;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 2px;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.knowledge-line-btn:hover { opacity: 0.88; }

/* 3. 節約術 */
.knowledge-saving-list { display: flex; flex-direction: column; gap: 12px; }
.ks-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
}
.ks-highlight { border-color: var(--gold-border); background: rgba(255,107,53,0.04); }
.ks-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  flex-shrink: 0;
  min-width: 64px;
  text-align: center;
}
.ks-num small { font-size: 0.75rem; display: block; }
.ks-body { flex: 1; }
.ks-body strong { display: block; font-size: 0.88rem; color: var(--text); margin-bottom: 4px; }
.ks-body p { font-size: 0.78rem; color: var(--text-muted); line-height: 1.7; }
.ks-body em { font-style: normal; color: var(--gold); font-weight: 700; }

/* 4. 電気工事 */
.knowledge-work-list { display: flex; flex-direction: column; gap: 10px; }
.kw-item {
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.82rem;
}
.kw-item p { color: var(--text-muted); line-height: 1.7; margin-top: 4px; }
.kw-label {
  font-weight: 700;
  color: var(--text);
  font-size: 0.85rem;
  margin-right: 10px;
}
.kw-price {
  font-family: var(--font-display);
  color: var(--gold);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
}

/* knowledge watermark */
.section-knowledge::before {
  color: rgba(200, 146, 42, 0.06);
}

/* Responsive */
@media (max-width: 768px) {
  .accordion-trigger { padding: 20px 20px; gap: 12px; }
  .accordion-body-inner { padding: 8px 20px 28px; }
  .accordion-icon-wrap { width: 44px; height: 44px; }
}
@media (max-width: 600px) {
  .knowledge-formula span { font-size: 1.5rem; }
  .knowledge-amp-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Legacy CTA (subpages) */
.cta-banner-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.cta-banner-sub {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  background: #060F1E;
  color: rgba(255,255,255,0.65);
  padding: clamp(60px,8vw,100px) 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand .logo span { color: var(--gold); }
.footer-brand-desc {
  font-size: 0.82rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
}
.footer-info {
  font-size: 0.78rem;
  line-height: 2;
  color: rgba(255,255,255,0.4);
}
.footer-nav-group h4 {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-nav-group ul { list-style: none; }
.footer-nav-group li { margin-bottom: 10px; }
.footer-nav-group a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}
.footer-nav-group a:hover { color: var(--gold); }
.footer-nav { display: contents; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
}

/* ── Mobile Sticky Phone CTA ── */
.mobile-phone-cta {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 20px;
  width: 58px;
  height: 58px;
  background: var(--gold);
  color: var(--white);
  border-radius: 50%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  z-index: 98;
  box-shadow: 0 4px 20px rgba(255,107,53,0.40);
  transition: transform 0.2s, box-shadow 0.2s;
}
.mobile-phone-cta:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 28px rgba(255,107,53,0.50);
}

/* ══════════════════════════════════════════
   PAGE HERO (subpages)
══════════════════════════════════════════ */
.page-hero {
  position: relative;
  height: 380px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  margin-top: var(--nav-h);
}
.page-hero-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.60) 0%, rgba(0,0,0,0.18) 60%, transparent 100%);
  z-index: 1;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  width: var(--container);
  margin: 0 auto;
  padding-bottom: 48px;
  color: var(--white);
}
.page-hero-en {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 10px;
  font-weight: 600;
}
.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--white);
}
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.6); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span:not(:first-child)::before { content: '/'; margin-right: 8px; }

/* ══════════════════════════════════════════
   FEATURE CARDS (subpages)
══════════════════════════════════════════ */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 36px 28px;
  transition: box-shadow 0.3s, transform 0.3s;
}
.feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}
.feature-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gold-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-bottom: 20px;
}
.feature-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.feature-desc {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.9;
}

/* ══════════════════════════════════════════
   MERIT LIST (subpages)
══════════════════════════════════════════ */
.merit-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  list-style: none;
}
.merit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 20px 24px;
}
.merit-check {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}
.merit-text {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.7;
  padding-top: 4px;
}

/* Legacy compat */
#page-loader { display: none; }
#cursor-ring  { display: none; }
#cursor-dot   { display: none; }

/* ══════════════════════════════════════════
   RESPONSIVE — 1024px
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-nav { display: contents; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); gap: 48px 20px; }
  .flow-steps::before { display: none; }
  .about-inner { gap: 48px; }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .number-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .number-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.08); }
  .number-item:last-child { border-bottom: none; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — 768px (mobile)
══════════════════════════════════════════ */
@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
    --section-gap: clamp(60px, 8vw, 100px);
  }

  /* Nav */
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  /* Hero */
  .hero-title { font-size: clamp(2.4rem, 11vw, 4.5rem); }
  .hero-sub { font-size: 0.88rem; }
  .hero-glass {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: clamp(24px, 5vw, 48px) clamp(20px, 5vw, 48px);
    max-width: 100%;
  }
  .hero-glass::before { display: none; }
  .hero-title { align-items: flex-start; }
  .hero-bg-text { font-size: clamp(5rem, 22vw, 9rem); padding-right: 2%; }
  .hero-scroll { display: none; }

  /* Section watermarks — smaller on mobile */
  .section-services::before,
  .section-about::before,
  .section-flow::before,
  .section-numbers::before {
    font-size: clamp(5rem, 20vw, 12rem);
  }

  /* Services */
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid .service-card:nth-child(1),
  .services-grid .service-card:nth-child(6) { grid-column: span 2; }
  .services-grid .service-card:nth-child(1) .service-card-img-wrap,
  .services-grid .service-card:nth-child(6) .service-card-img-wrap { aspect-ratio: 16/9; }

  /* Numbers */
  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .number-item { padding: 40px 16px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .number-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.08); }
  .number-item:nth-last-child(-n+2) { border-bottom: none; }

  /* About */
  .about-inner { grid-template-columns: 1fr; gap: 36px; }
  .about-image-wrap { order: -1; aspect-ratio: 16/9; }

  /* Flow — vertical */
  .flow-steps { grid-template-columns: 1fr; gap: 0; }
  .flow-steps::before { display: none; }
  .flow-step {
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 0 0 36px 0;
    border-left: 2px solid rgba(255,107,53,0.25);
    margin-left: 40px;
    padding-left: 40px;
    position: relative;
  }
  .flow-step:last-child { border-left-color: transparent; }
  .flow-step-num {
    margin: 0;
    flex-shrink: 0;
    width: 60px; height: 60px;
    font-size: 1.2rem;
    position: absolute;
    left: -31px; top: 0;
  }
  .flow-step-body { flex: 1; padding-top: 6px; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { display: contents; }

  .feature-cards { grid-template-columns: 1fr; }
  .merit-list { grid-template-columns: 1fr; }

  .cta-actions { flex-direction: column; align-items: center; gap: 28px; }
  .cta-tel { align-items: center; }

  .mobile-phone-cta { display: flex; right: auto; left: 20px; }
  .page-hero { height: 280px; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — 480px
══════════════════════════════════════════ */
@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
  .services-grid .service-card:nth-child(1),
  .services-grid .service-card:nth-child(6) { grid-column: span 1; }
  .services-grid .service-card:nth-child(1) .service-card-img-wrap,
  .services-grid .service-card:nth-child(6) .service-card-img-wrap { aspect-ratio: 16/10; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline, .btn-white {
    width: 100%;
    justify-content: center;
    max-width: 300px;
  }
  .flow-step { margin-left: 28px; padding-left: 34px; }
  .flow-step-num { width: 56px; height: 56px; font-size: 1.1rem; left: -29px; }
}

/* ══════════════════════════════════════════
   AI CONSULTATION BANNER
══════════════════════════════════════════ */
.section-ai-consult {
  background: var(--navy);
  padding: clamp(64px, 9vw, 120px) 0;
  overflow: hidden;
  position: relative;
}
.section-ai-consult::before {
  content: 'AI';
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  font-size: clamp(120px, 20vw, 220px);
  font-family: var(--font-display);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.04);
  pointer-events: none;
  user-select: none;
}

.ai-consult-inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.ai-consult-img-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}
.ai-consult-img {
  width: 100%;
  display: block;
  object-fit: contain;
}

.ai-consult-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.ai-consult-heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 24px;
}
.ai-consult-heading span {
  color: var(--gold-light);
}
.ai-consult-desc {
  color: rgba(255,255,255,0.7);
  font-size: clamp(0.88rem, 1.2vw, 1rem);
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 480px;
}
.ai-consult-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(255,107,53,0.35);
}
.ai-consult-btn:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,107,53,0.45);
}
.ai-consult-note {
  margin-top: 16px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .ai-consult-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .ai-consult-img-wrap {
    max-width: 320px;
    margin: 0 auto;
  }
  .ai-consult-desc { margin-inline: auto; }
}

/* ══════════════════════════════════════════
   CHAT WIDGET — アイル君
══════════════════════════════════════════ */
.chat-widget {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
}

/* フローティングボタン */
.chat-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.35));
  transition: transform 0.25s var(--ease);
}
.chat-toggle:hover { transform: translateY(-3px) scale(1.04); }
.chat-toggle.open { filter: none; }

.chat-toggle-inner {
  position: relative;
  width: 64px;
  height: 64px;
}
.chat-toggle-img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--gold);
  display: block;
}
.chat-toggle-badge {
  background: var(--gold);
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* パネル */
.chat-panel {
  position: absolute;
  bottom: calc(100% + 16px);
  right: 0;
  width: 340px;
  background: var(--bg-card);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.18), 0 0 0 1px rgba(0,0,0,0.06);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 520px;

  /* closed state */
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.chat-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ヘッダー */
.chat-header {
  background: var(--navy);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.chat-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.chat-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gold);
}
.chat-name {
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
}
.chat-status {
  display: flex;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,0.55);
  font-size: 0.72rem;
}
.chat-status-dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  flex-shrink: 0;
  animation: chatPulse 2s infinite;
}
@keyframes chatPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.chat-close {
  background: rgba(255,255,255,0.12);
  border: none;
  border-radius: 6px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white);
  transition: background 0.15s;
  flex-shrink: 0;
}
.chat-close:hover { background: rgba(255,255,255,0.22); }

/* 免責 */
.chat-disclaimer {
  background: #FEF3C7;
  color: #92400E;
  font-size: 0.7rem;
  padding: 7px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  line-height: 1.4;
}

/* メッセージエリア */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.chat-msg {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.chat-msg-bot { flex-direction: row; }
.chat-msg-user { flex-direction: row-reverse; }

.chat-msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.chat-bubble {
  max-width: 76%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.875rem;
  line-height: 1.65;
  word-break: break-word;
}
.chat-msg-bot .chat-bubble {
  background: var(--bg);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.chat-msg-user .chat-bubble {
  background: var(--navy);
  color: var(--white);
  border-bottom-right-radius: 4px;
}

/* タイピングアニメーション */
.chat-typing .chat-bubble {
  padding: 12px 16px;
}
.chat-typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
  height: 16px;
}
.chat-typing-dots span {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typingBounce 1.2s infinite;
}
.chat-typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}

/* 入力エリア */
.chat-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  background: var(--white);
  flex-shrink: 0;
}
.chat-input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: 24px;
  padding: 9px 16px;
  font-size: 0.875rem;
  font-family: var(--font-body);
  outline: none;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.2s;
}
.chat-input:focus { border-color: var(--accent); }
.chat-send {
  width: 38px;
  height: 38px;
  background: var(--navy);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white);
  flex-shrink: 0;
  transition: background 0.15s, transform 0.15s;
}
.chat-send:hover { background: var(--navy-light); transform: scale(1.05); }
.chat-send:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

@media (max-width: 768px) {
  .chat-widget { bottom: 24px; right: 16px; }
  .chat-toggle-img { width: 56px; height: 56px; }
  .chat-toggle-inner { width: 56px; height: 56px; }
}
@media (max-width: 480px) {
  .chat-panel { width: calc(100vw - 32px); right: -16px; }
}

/* ============================================================
   TWO PILLARS — 二本柱セクション
   ============================================================ */

/* セクション共通 */
.section-pillars { padding-bottom: 0; }
.section-pillars .container { padding-bottom: 0; }

/* 左右分割コンテナ */
.pillars-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
  margin-top: 48px;
}

/* 各ピラー共通 */
.pillar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 56px;
  overflow: hidden;
}
.pillar__inner {
  position: relative;
  z-index: 1;
  max-width: 480px;
}

/* 電気系ピラー */
.pillar--electric {
  background: var(--navy);
  color: var(--white);
}
.pillar--electric::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(14,165,233,0.18) 0%, transparent 65%);
  pointer-events: none;
}

/* 塗装系ピラー */
.pillar--painting {
  background: #3D3530;
  color: var(--white);
}
.pillar--painting::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom right, rgba(255,107,53,0.22) 0%, transparent 65%);
  pointer-events: none;
}

/* ピラー内要素 */
.pillar__icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}
.pillar__heading {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}
.pillar__desc {
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(255,255,255,0.82);
  margin-bottom: 28px;
}
.pillar__list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pillar__list li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.pillar__list li a::before {
  content: '→';
  font-size: 0.8em;
  opacity: 0.6;
}
.pillar__list li a:hover { color: var(--white); }
.pillar--electric .pillar__list li a:hover { color: var(--accent); }
.pillar--painting .pillar__list li a:hover { color: var(--gold-light); }

.pillar__sub {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 32px;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  line-height: 1.6;
}

.pillar__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
}
.pillar--electric .pillar__cta {
  background: var(--accent);
  color: var(--white);
}
.pillar--painting .pillar__cta {
  background: var(--gold);
  color: var(--white);
}
.pillar__cta:hover { opacity: 0.88; transform: translateY(-2px); }

/* ============================================================
   PAINTING FEATURE — 塗装フィーチャーセクション
   ============================================================ */
.section-painting-feature {
  background: var(--bg-warm);
}
.painting-feature__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.painting-feature__img-wrap {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.painting-feature__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.painting-feature__img-wrap:hover .painting-feature__img {
  transform: scale(1.04);
}
.painting-feature__heading {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 20px;
}
.painting-feature__desc {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.painting-feature__sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(255,107,53,0.08);
  border-left: 3px solid var(--gold);
  padding: 10px 16px;
  border-radius: 0 4px 4px 0;
}

/* ============================================================
   レスポンシブ — 二本柱 & 塗装フィーチャー
   ============================================================ */
@media (max-width: 960px) {
  .pillars-split {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .pillar {
    padding: 56px 32px;
    min-height: 50vh;
  }
  .painting-feature__inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}
@media (max-width: 600px) {
  .pillar { padding: 48px 24px; }
  .pillar__heading { font-size: 1.6rem; }
}

/* ============================================================
   WORKS CATEGORY — 工事一覧カテゴリ区切り
   ============================================================ */
.works-category {
  margin-top: 64px;
}
.works-category:first-of-type {
  margin-top: 48px;
}
.works-category__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border);
}
.works-category__icon {
  font-size: 1.5rem;
  line-height: 1;
}
.works-category__title {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
}

/* 1〜2枚のときは最大2列に抑える */
.services-grid--half {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 600px) {
  .services-grid--half {
    grid-template-columns: 1fr;
  }
}