/* ============================================================
   フレックス技研 コーポレートサイト
   style.css
   ============================================================ */

/* ── CSS変数 ── */
:root {
  --color-primary:    #1a56db;
  --color-primary-dark: #1340a8;
  --color-primary-light: #e8effd;
  --color-accent:     #2563eb;
  --color-dark:       #111827;
  --color-text:       #374151;
  --color-muted:      #6b7280;
  --color-border:     #e5e7eb;
  --color-bg:         #f9fafb;
  --color-white:      #ffffff;
  --color-gray-100:   #f3f4f6;
  --color-gray-200:   #e5e7eb;
  --color-gray-800:   #1f2937;

  --font-sans: 'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.12);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;

  --transition: 0.25s ease;

  --header-h: 68px;
  --container-w: 1100px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Utility ── */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,86,219,.35);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--color-white);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
}
.btn-large {
  padding: 15px 40px;
  font-size: 15px;
}

/* ── セクション共通 ── */
.section { padding: 88px 0; }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  max-width: 520px;
  margin: 0 auto;
}
.section-cta {
  text-align: center;
  margin-top: 48px;
}


/* ============================================================
   ヘッダー
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}

/* ロゴ */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.logo-main {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.04em;
}
.logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.14em;
  margin-top: 2px;
}

/* ナビ */
.site-nav { margin-left: auto; }
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.site-nav ul li a {
  display: block;
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.site-nav ul li a:hover,
.site-nav ul li a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.site-nav ul li a.nav-cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 8px 20px;
  margin-left: 6px;
}
.site-nav ul li a.nav-cta:hover {
  background: var(--color-primary-dark);
}

/* ハンバーガー */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ============================================================
   ヒーロー
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: var(--color-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #0a1628 0%, #0e2044 40%, #1a3a7a 70%, #0d1f4a 100%);
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 70% 50%, rgba(26,86,219,.18) 0%, transparent 70%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,.018) 60px,
      rgba(255,255,255,.018) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,.018) 60px,
      rgba(255,255,255,.018) 61px
    );
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: var(--container-w);
}
.hero-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(100,160,255,.8);
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(32px, 5.5vw, 58px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}
.hero-title span {
  font-size: clamp(24px, 4vw, 44px);
  color: rgba(255,255,255,.75);
}
.hero-desc {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,.75);
  line-height: 1.8;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* スクロール */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
  color: rgba(255,255,255,.45);
  font-size: 10px;
  letter-spacing: 0.14em;
}
.hero-scroll span {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,.45));
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}


/* ============================================================
   技術紹介
   ============================================================ */
.technology { background: var(--color-white); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tech-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px 28px;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}
.tech-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition), border-color var(--transition);
}
.tech-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(26,86,219,.25);
  transform: translateY(-4px);
}
.tech-icon {
  width: 72px;
  height: 72px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  padding: 14px;
}
.tech-icon svg { width: 100%; height: 100%; }
.tech-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.tech-card p {
  font-size: 13.5px;
  color: var(--color-muted);
  line-height: 1.8;
}


/* ============================================================
   対応分野
   ============================================================ */
.fields { background: var(--color-gray-100); }
.fields-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.field-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}
.field-item.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition);
}
.field-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.field-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary-light);
  line-height: 1;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--color-primary), #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.field-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.field-content p {
  font-size: 13.5px;
  color: var(--color-muted);
  line-height: 1.85;
}


/* ============================================================
   CTAセクション
   ============================================================ */
.cta-section { background: var(--color-dark); }
.cta-box {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  padding: 64px 40px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(26,86,219,.15), rgba(26,86,219,.05));
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,86,219,.2), transparent);
  pointer-events: none;
}
.cta-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(100,160,255,.8);
  margin-bottom: 18px;
}
.cta-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.35;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.cta-body {
  font-size: 15px;
  color: rgba(255,255,255,.72);
  line-height: 1.9;
  margin-bottom: 36px;
}
.cta-body strong {
  color: rgba(255,255,255,.92);
  font-weight: 700;
}
.cta-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 40px;
  align-items: center;
}
.cta-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.8);
}
.cta-feature-icon {
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: white;
  font-weight: 700;
  flex-shrink: 0;
}


/* ============================================================
   フッター
   ============================================================ */
.site-footer {
  background: #0d1117;
  color: rgba(255,255,255,.6);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 48px;
  padding-bottom: 48px;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-brand .logo-main { font-size: 16px; }
.footer-brand p {
  font-size: 12px;
  margin-top: 4px;
}
.footer-nav ul {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.footer-nav ul li a {
  display: block;
  padding: 5px 10px;
  font-size: 12.5px;
  color: rgba(255,255,255,.55);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.footer-nav ul li a:hover {
  color: var(--color-white);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 18px 0;
}
.footer-bottom p {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.3);
}


/* ============================================================
   アニメーション (transition delay for stagger)
   ============================================================ */
.tech-card:nth-child(2).visible { transition-delay: 0.1s; }
.tech-card:nth-child(3).visible { transition-delay: 0.2s; }
.tech-card:nth-child(4).visible { transition-delay: 0.3s; }
.field-item:nth-child(2).visible { transition-delay: 0.1s; }
.field-item:nth-child(3).visible { transition-delay: 0.2s; }


/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .fields-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }

  /* ヘッダー */
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 16px 24px 24px;
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 999;
  }
  .site-nav.open { transform: translateY(0); }
  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .site-nav ul li a {
    padding: 12px 16px;
    font-size: 15px;
  }
  .site-nav ul li a.nav-cta {
    margin-left: 0;
    margin-top: 8px;
    text-align: center;
  }

  /* ヒーロー */
  .hero-content { padding: 60px 24px; }
  .hero-actions { gap: 12px; }
  .hero-actions .btn { flex: 1; min-width: 140px; }

  /* グリッド */
  .tech-grid { grid-template-columns: 1fr; gap: 16px; }
  .fields-grid { grid-template-columns: 1fr; }

  /* CTA */
  .cta-box { padding: 40px 24px; }
  .cta-features { align-items: flex-start; padding: 0 8px; }

  /* フッター */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    padding-top: 36px;
    padding-bottom: 36px;
  }
  .footer-nav ul { gap: 2px; }
}

@media (max-width: 480px) {
  .btn { padding: 11px 20px; font-size: 13px; }
  .btn-large { padding: 13px 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}


/* ============================================================
   ページヒーロー（サブページ共通）
   ============================================================ */
.page-hero {
  position: relative;
  padding-top: var(--header-h);
  padding-bottom: 0;
  background: var(--color-dark);
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #0a1628 0%, #0e2044 50%, #0d1f4a 100%);
  z-index: 0;
}
.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 80% 50%, rgba(26,86,219,.14) 0%, transparent 70%),
    repeating-linear-gradient(
      0deg, transparent, transparent 60px,
      rgba(255,255,255,.016) 60px, rgba(255,255,255,.016) 61px
    ),
    repeating-linear-gradient(
      90deg, transparent, transparent 60px,
      rgba(255,255,255,.016) 60px, rgba(255,255,255,.016) 61px
    );
}
.page-hero-content {
  position: relative;
  z-index: 1;
  padding: 64px 24px 60px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.page-hero-title {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  line-height: 1.2;
}
.page-hero-desc {
  font-size: 15px;
  color: rgba(255,255,255,.65);
  line-height: 1.85;
}


/* ============================================================
   技術詳細セクション
   ============================================================ */
.tech-detail-section { background: var(--color-bg); }
.tech-detail-section .container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* カード */
.tech-detail-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.tech-detail-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.tech-detail-card:nth-child(2) { transition-delay: 0.08s; }
.tech-detail-card:nth-child(3) { transition-delay: 0.16s; }
.tech-detail-card:nth-child(4) { transition-delay: 0.24s; }
.tech-detail-card:nth-child(5) { transition-delay: 0.32s; }

/* カードヘッダー */
.tdc-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px 36px;
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-border);
}
.tdc-alt .tdc-header {
  background: var(--color-primary-light);
  border-bottom-color: rgba(26,86,219,.12);
}
.tdc-num {
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary), #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  min-width: 68px;
}
.tdc-icon {
  width: 80px;
  height: 80px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.tdc-alt .tdc-icon { background: var(--color-white); }
.tdc-icon svg { width: 100%; height: 100%; }
.tdc-title-block { flex: 1; }
.tdc-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}
.tdc-maker {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

/* カードボディ */
.tdc-body {
  padding: 32px 36px 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 40px;
  align-items: start;
}
.tdc-desc {
  grid-column: 1 / -1;
  font-size: 14.5px;
  color: var(--color-text);
  line-height: 1.9;
}
.tdc-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tdc-feature {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tdc-feat-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 2px;
  align-self: flex-start;
}
.tdc-feature p {
  font-size: 13.5px;
  color: var(--color-muted);
  line-height: 1.7;
  padding-left: 2px;
}
.tdc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
  padding-top: 4px;
}
.tdc-tags span {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-gray-100);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.tech-detail-card:hover { box-shadow: var(--shadow-md); }

/* ── レスポンシブ（技術ページ） ── */
@media (max-width: 768px) {
  .page-hero-content { padding: 48px 24px 44px; }

  .tdc-header {
    padding: 24px 20px;
    gap: 16px;
  }
  .tdc-num { font-size: 36px; min-width: 48px; }
  .tdc-icon { width: 60px; height: 60px; }

  .tdc-body {
    padding: 24px 20px 28px;
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .tdc-desc { grid-column: 1; }
}

@media (max-width: 480px) {
  .tdc-header { flex-wrap: wrap; }
  .tdc-num { font-size: 28px; min-width: auto; }
  .tdc-title-block { min-width: 0; }
}


/* ============================================================
   事例ページ
   ============================================================ */
.cases-section { background: var(--color-bg); }

/* 3カラムグリッド */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

/* カード */
.case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.case-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.case-card:nth-child(2).visible { transition-delay: 0.1s; }
.case-card:nth-child(3).visible { transition-delay: 0.2s; }
.case-card:hover { box-shadow: var(--shadow-lg); }

/* ── 写真エリア ── */
.case-photo {
  position: relative;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.case-photo--robot  { background: linear-gradient(135deg, #0e2044 0%, #1a3a7a 100%); }
.case-photo--mold   { background: linear-gradient(135deg, #0a1f3c 0%, #162d60 100%); }
.case-photo--feeder { background: linear-gradient(135deg, #0c2248 0%, #1d3f80 100%); }

/* グリッドライン背景 */
.case-photo::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg,  transparent, transparent 24px, rgba(255,255,255,.04) 24px, rgba(255,255,255,.04) 25px),
    repeating-linear-gradient(90deg, transparent, transparent 24px, rgba(255,255,255,.04) 24px, rgba(255,255,255,.04) 25px);
  pointer-events: none;
}
.case-photo-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 100%;
  justify-content: center;
}
.case-photo-svg {
  width: 80%;
  max-width: 260px;
  height: auto;
  display: block;
}
.case-photo-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,.35);
  position: absolute;
  bottom: 10px;
  right: 14px;
}

/* ── カードヘッダー帯 ── */
.case-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-border);
}
.case-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}
.case-cat {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 9px;
  border-radius: 20px;
  letter-spacing: 0.04em;
}

/* ── カードボディ ── */
.case-body {
  padding: 20px 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}
.case-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

/* ── 工程フロー ── */
.case-process {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px 14px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.case-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  line-height: 1.3;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  min-width: 46px;
}
.case-step--accent {
  background: var(--color-primary-light);
  border-color: rgba(26,86,219,.22);
  color: var(--color-primary);
}
.step-icon {
  font-size: 13px;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.7;
}
.case-arrow {
  font-size: 14px;
  color: var(--color-muted);
  flex-shrink: 0;
  font-weight: 400;
}

/* ── 説明文 ── */
.case-desc {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.85;
}

/* ── スペック一覧 ── */
.case-specs {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: auto;
}
.case-spec {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  font-size: 12.5px;
  border-bottom: 1px solid var(--color-border);
}
.case-spec:last-child { border-bottom: none; }
.spec-key {
  font-weight: 700;
  color: var(--color-muted);
  flex-shrink: 0;
  min-width: 68px;
  font-size: 11.5px;
  letter-spacing: 0.02em;
}
.spec-val {
  color: var(--color-text);
  font-size: 12.5px;
}

/* ── 画像エリア ── */
.case-img-wrap {
  position: relative;
  height: 210px;
  background: linear-gradient(135deg, #0e2044 0%, #1a3a7a 100%);
  overflow: hidden;
}
.case-img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.case-img-ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,.3);
  pointer-events: none;
}

/* ── 設備構成リスト ── */
.case-equip {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.case-equip li {
  font-size: 12px;
  color: var(--color-text);
  background: var(--color-gray-100);
  border: 1px solid var(--color-border);
  padding: 3px 10px;
  border-radius: 20px;
}

/* ── 動画（将来追加用） ── */
.case-video-wrap { margin-top: 4px; }
.case-video-wrap video {
  width: 100%;
  border-radius: var(--radius-md);
  display: block;
}

/* ── レスポンシブ（事例ページ） ── */
@media (max-width: 1024px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .cases-grid .case-card { max-width: none; }
}
@media (max-width: 768px) {
  .cases-grid { grid-template-columns: 1fr; }
  .case-img-wrap { height: 190px; }
  .case-photo { height: 180px; }
  .case-process { gap: 4px; padding: 10px 10px; }
  .case-step { min-width: 40px; padding: 5px 6px; font-size: 10px; }
}
@media (max-width: 480px) {
  .case-img-wrap { height: 170px; }
  .case-photo { height: 160px; }
  .case-body { padding: 16px 16px 22px; }
  .case-title { font-size: 17px; }
}


/* ============================================================
   相談ページ
   ============================================================ */

/* ── 相談内容チェックリスト ── */
.consult-topics-section { background: var(--color-white); }
.consult-topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.consult-topic-card {
  display: flex;
  gap: 20px;
  padding: 28px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}
.consult-topic-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition), border-color var(--transition);
}
.consult-topic-card:nth-child(2).visible { transition-delay: 0.08s; }
.consult-topic-card:nth-child(3).visible { transition-delay: 0.16s; }
.consult-topic-card:nth-child(4).visible { transition-delay: 0.24s; }
.consult-topic-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(26,86,219,.25);
}

.ctc-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}
.ctc-icon svg { width: 100%; height: 100%; }

.ctc-content { flex: 1; min-width: 0; }
.ctc-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
.ctc-content p {
  font-size: 13.5px;
  color: var(--color-muted);
  line-height: 1.85;
  margin-bottom: 14px;
}
.ctc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ctc-tags span {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}


/* ── 相談の流れ ── */
.consult-flow-section { background: var(--color-gray-100); }

.consult-flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}

/* ステップ */
.cf-step {
  flex: 1;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition);
}
.cf-step.visible {
  opacity: 1;
  transform: translateY(0);
}
.cf-step:nth-child(3).visible { transition-delay: 0.1s; }
.cf-step:nth-child(5).visible { transition-delay: 0.2s; }
.cf-step:nth-child(7).visible { transition-delay: 0.3s; }
.cf-step:hover { box-shadow: var(--shadow-md); }

.cf-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 3px 12px;
  border-radius: 20px;
  align-self: center;
}
.cf-icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  flex-shrink: 0;
}
.cf-icon svg { width: 100%; height: 100%; }
.cf-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.cf-body p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.85;
}

/* 矢印コネクター */
.cf-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  flex-shrink: 0;
}
.cf-arrow {
  font-size: 22px;
  color: var(--color-primary);
  opacity: 0.45;
  font-weight: 300;
}

/* 注記 */
.cf-note {
  margin-top: 28px;
  padding: 14px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}
.cf-note p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}


/* ── レスポンシブ（相談ページ） ── */
@media (max-width: 1024px) {
  .consult-flow {
    flex-direction: column;
    gap: 0;
  }
  .cf-step { flex-direction: row; text-align: left; gap: 20px; }
  .cf-num { align-self: flex-start; }
  .cf-connector {
    padding: 8px 0;
    justify-content: flex-start;
    padding-left: 52px;
  }
  .cf-arrow {
    display: block;
    transform: rotate(90deg);
    font-size: 20px;
  }
  .cf-icon { flex-shrink: 0; }
  .cf-body { flex: 1; }
}

@media (max-width: 768px) {
  .consult-topics-grid { grid-template-columns: 1fr; }
  .consult-topic-card { padding: 22px 20px; }

  .cf-step { padding: 20px; gap: 16px; }
  .cf-icon { width: 52px; height: 52px; }
}

@media (max-width: 480px) {
  .consult-topic-card { flex-direction: column; gap: 14px; }
  .ctc-icon { width: 40px; height: 40px; }

  .cf-step { flex-direction: column; text-align: center; }
  .cf-num { align-self: center; }
  .cf-connector { padding-left: 0; justify-content: center; }
}


/* ============================================================
   会社ページ
   ============================================================ */

/* ── 会社概要 ── */
.company-overview-section { background: var(--color-white); }
.company-intro {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 44px;
}

.company-overview-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
  opacity: 0;
  transform: translateY(20px);
}
.company-overview-wrap.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* 概要テーブルカード */
.company-overview-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.co-table { width: 100%; }
.co-row {
  display: flex;
  align-items: baseline;
  border-bottom: 1px solid var(--color-border);
}
.co-row:last-child { border-bottom: none; }
.co-row dt {
  width: 100px;
  flex-shrink: 0;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-primary);
  padding: 16px 18px;
  letter-spacing: 0.04em;
  align-self: stretch;
  display: flex;
  align-items: center;
}
.co-row dd {
  flex: 1;
  padding: 14px 20px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.co-biz-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.co-biz-list li {
  padding-left: 14px;
  position: relative;
  font-size: 13.5px;
  color: var(--color-text);
  line-height: 1.7;
}
.co-biz-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}

.co-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.co-tags span {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.04em;
}

/* 地図カード */
.company-map-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.map-placeholder {
  position: relative;
  height: 280px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8effd 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.map-grid {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg,  transparent, transparent 30px, rgba(26,86,219,.06) 30px, rgba(26,86,219,.06) 31px),
    repeating-linear-gradient(90deg, transparent, transparent 30px, rgba(26,86,219,.06) 30px, rgba(26,86,219,.06) 31px);
  pointer-events: none;
}
/* 道路風ライン */
.map-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg,   transparent 48%, rgba(255,255,255,.7) 48%, rgba(255,255,255,.7) 52%, transparent 52%),
    linear-gradient(90deg,  transparent 38%, rgba(255,255,255,.7) 38%, rgba(255,255,255,.7) 42%, transparent 42%),
    linear-gradient(0deg,   transparent 68%, rgba(255,255,255,.5) 68%, rgba(255,255,255,.5) 70%, transparent 70%),
    linear-gradient(90deg,  transparent 70%, rgba(255,255,255,.5) 70%, rgba(255,255,255,.5) 72%, transparent 72%);
}

.map-placeholder-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 20px;
}
.map-icon {
  width: 56px;
  height: 56px;
  filter: drop-shadow(0 2px 8px rgba(26,86,219,.25));
}
.map-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
}
.map-btn {
  margin-top: 4px;
  font-size: 13px;
  padding: 9px 20px;
}

.map-address-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--color-gray-100);
  border-top: 1px solid var(--color-border);
  font-size: 12.5px;
  color: var(--color-muted);
  font-weight: 500;
}


/* ── 沿革 ── */
.company-history-section { background: var(--color-gray-100); }

.history-timeline {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.history-item {
  display: flex;
  gap: 0;
  opacity: 0;
  transform: translateX(-16px);
}
.history-item.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.history-item:nth-child(2).visible { transition-delay: 0.12s; }
.history-item:nth-child(3).visible { transition-delay: 0.24s; }

.history-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 48px;
  padding-top: 6px;
}
.history-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
  flex-shrink: 0;
  z-index: 1;
}
.history-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, var(--color-primary), rgba(26,86,219,.15));
  margin-top: 4px;
  min-height: 40px;
}
.history-item:last-child .history-line { display: none; }

.history-content {
  flex: 1;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin-bottom: 20px;
  margin-left: 8px;
  position: relative;
}
/* 吹き出し矢印 */
.history-content::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 18px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-right: 8px solid var(--color-border);
}
.history-content::after {
  content: '';
  position: absolute;
  left: -6px;
  top: 19px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 7px solid var(--color-white);
}

.history-period {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.history-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.history-content > p {
  font-size: 13.5px;
  color: var(--color-muted);
  line-height: 1.85;
}


/* ── レスポンシブ（会社ページ） ── */
@media (max-width: 1024px) {
  .company-overview-wrap {
    grid-template-columns: 1fr;
  }
  .map-placeholder { height: 240px; }
}

@media (max-width: 768px) {
  .co-row dt {
    width: 80px;
    padding: 14px 12px;
    font-size: 12px;
  }
  .co-row dd { padding: 12px 16px; }

  .history-content { padding: 18px 18px; }
  .history-content h3 { font-size: 15px; }
}

@media (max-width: 480px) {
  .co-row { flex-direction: column; }
  .co-row dt {
    width: 100%;
    padding: 10px 16px;
    border-bottom: 1px solid rgba(255,255,255,.2);
  }
  .co-row dd { padding: 12px 16px; }
  .history-marker { width: 32px; }
  .history-content::before, .history-content::after { display: none; }
}


/* ── 対応技術・応用分野 ブロック ── */
.fields-block { margin-top: 44px; }
.fields-block-title {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: 20px;
}
.fields-grid--4 { grid-template-columns: repeat(4, 1fr); }
.fields-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}
.field-item:nth-child(4).visible { transition-delay: 0.3s; }
.field-item:nth-child(5).visible { transition-delay: 0.4s; }

@media (max-width: 1024px) {
  .fields-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .fields-block { margin-top: 32px; }
  .fields-grid--4 { grid-template-columns: 1fr; }
}