/* ============================================================
   SEES Co., Ltd. — Corporate Website
   Main Stylesheet
   ============================================================ */

/* 1. Custom Properties */
:root {
  --navy-950: #070F1F;
  --navy-900: #0A1628;
  --navy-800: #0D1E38;
  --navy-700: #102447;
  --navy-600: #163060;
  --navy-text: #1A2B4A;
  --brand-blue: #0052CC;
  --brand-blue-hover: #0047B3;
  --brand-cyan: #0099CC;
  --white: #FFFFFF;
  --neutral-50:  #F9FAFB;
  --neutral-100: #F3F4F6;
  --neutral-200: #E5E7EB;
  --neutral-300: #D1D5DB;
  --neutral-400: #9CA3AF;
  --neutral-500: #6B7280;
  --neutral-600: #4B5563;
  --neutral-700: #374151;
  --neutral-800: #1F2937;
  --neutral-900: #111827;

  --font-main: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', system-ui, sans-serif;
  --container-max: 1280px;
  --header-height: 72px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 200ms ease;
}

/* 2. Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-main);
  font-size: clamp(1.125rem, 1.2vw, 1.25rem);
  line-height: 1.8;
  color: var(--navy-text);
  background: var(--white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  --neutral-600: var(--navy-text);
  --neutral-700: var(--navy-text);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }
address { font-style: normal; }

/* Focus styles for accessibility */
:focus-visible {
  outline: 3px solid var(--brand-cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Screen-reader only */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2.25rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.625rem, 2.2vw, 2rem); }
h4 { font-size: clamp(1.25rem, 1.6vw, 1.5rem); }

p { font-size: clamp(1.125rem, 1.2vw, 1.25rem); color: var(--navy-text); }

.eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--neutral-500);
}

/* 4. Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.section {
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
}

.section--white { background: var(--white); }
.section--gray  { background: var(--white); }

.section + .section { border-top: 1px solid var(--neutral-100); }

main { flex: 1; padding-top: var(--header-height); }

/* Grid utilities */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* Flex utilities */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

.text-center { text-align: center; }
.mt-auto { margin-top: auto; }

/* 5. Header & Navigation */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid var(--neutral-200);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.nav-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  line-height: 1;
}
.nav-logo-img {
  height: 40px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--navy-text);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav-link:hover { color: var(--brand-blue); background: rgba(0,82,204,0.07); }
.nav-link.active { color: var(--brand-blue); background: rgba(0,82,204,0.1); }

.nav-link--cta {
  background: var(--brand-blue);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  margin-left: 0.5rem;
  transition: background var(--transition), transform var(--transition);
}
.nav-link--cta:hover { background: var(--brand-blue-hover); transform: translateY(-1px); }

.nav-lang {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border-left: 1px solid var(--neutral-200);
  padding-left: 1rem;
  margin-left: 0.5rem;
}

.lang-btn {
  font-size: 0.8125rem;
  color: var(--neutral-500);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: color var(--transition);
}
.lang-btn:hover, .lang-btn.active { color: var(--brand-blue); }
.lang-sep { color: var(--neutral-300); font-size: 0.75rem; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--navy-text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu overlay */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height); left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 999;
  overflow-y: auto;
  padding: 2rem clamp(1.25rem, 4vw, 3rem);
  border-top: 1px solid var(--neutral-200);
}
.nav-mobile.open { display: block; }

.nav-mobile-link {
  display: block;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--navy-text);
  padding: 1rem 0;
  border-bottom: 1px solid var(--neutral-100);
  transition: color var(--transition);
}
.nav-mobile-link:hover { color: var(--brand-blue); }
.nav-mobile-link.active { color: var(--brand-blue); }

.nav-mobile-cta {
  display: block;
  margin-top: 1.5rem;
  background: var(--brand-blue);
  color: var(--white);
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 1.0625rem;
  font-weight: 600;
}

.nav-mobile-lang {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--neutral-200);
}
.nav-mobile-lang a {
  font-size: 0.9375rem;
  color: var(--neutral-500);
}
.nav-mobile-lang a.active { color: var(--brand-blue); }

/* 6. Footer */
.site-footer {
  background: #1a1a1a;
  color: var(--neutral-300);
  margin-top: auto;
  --neutral-600: #4B5563;
  --neutral-700: #374151;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 2.25rem;
  padding: 4rem 0;
}

.footer-logo-main {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--white);
}
.footer-logo-sub {
  font-size: 0.8125rem;
  color: var(--neutral-400);
  margin-top: 4px;
}

.footer-address {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-address-item {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.footer-address-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--neutral-500);
}

.footer-license {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--neutral-500);
}

.footer-col-heading {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.25rem;
  letter-spacing: 0.03em;
}

.footer-col-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col-links a {
  font-size: 0.9375rem;
  color: var(--neutral-400);
  transition: color var(--transition);
}
.footer-col-links a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 1.75rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-copyright { font-size: 0.875rem; color: var(--neutral-500); }
.footer-lang { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; color: var(--neutral-500); }
.footer-lang a { color: var(--neutral-400); padding: 0.25rem 0.5rem; border-radius: 4px; transition: color var(--transition); }
.footer-lang a:hover { color: var(--white); }

/* 7. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: clamp(1rem, 1.1vw, 1.0625rem);
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  min-height: 52px;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--brand-blue);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0,82,204,0.35);
}
.btn-primary:hover {
  background: var(--brand-blue-hover);
  box-shadow: 0 6px 20px rgba(0,82,204,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--brand-blue);
  border: 2px solid var(--brand-blue);
}
.btn-outline:hover { background: rgba(0,82,204,0.07); border-color: var(--brand-blue); }

.cta-strip .btn-outline {
  color: var(--brand-blue);
  border-color: var(--brand-blue);
}
.cta-strip .btn-outline:hover { background: rgba(0,82,204,0.07); border-color: var(--brand-blue); }

.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; }

/* 8. Cards */
.card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.card--link {
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.card--link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,82,204,0.3);
}

.card-icon {
  width: 56px; height: 56px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 1.25rem;
  color: var(--navy-text);
}
.card-icon svg { width: 28px; height: 28px; }

.card-tag {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--neutral-500);
  letter-spacing: 0.05em;
}

.card-title {
  font-size: clamp(1.625rem, 2vw, 1.875rem);
  font-weight: 700;
  color: var(--navy-text);
  margin: 0.5rem 0 0.75rem;
  line-height: 1.4;
}

.card-body {
  font-size: clamp(1.125rem, 1.2vw, 1.25rem);
  color: var(--navy-text);
  line-height: 1.75;
  flex: 1;
}

.card-link-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--brand-blue);
  margin-top: 1.25rem;
}
.card-link-row svg { width: 16px; height: 16px; transition: transform var(--transition); }
.card--link:hover .card-link-row svg { transform: translateX(4px); }

/* 9. Hero */
.hero {
  position: relative;
  background: var(--white);
  overflow: hidden;
  padding: clamp(5rem, 10vw, 8.5rem) 0 clamp(4.5rem, 9vw, 7.5rem);
  border-bottom: 1px solid var(--neutral-100);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
}
.hero-glow--cyan {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,153,204,0.06) 0%, transparent 70%);
  top: -100px; right: -150px;
}
.hero-glow--blue {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,82,204,0.05) 0%, transparent 70%);
  bottom: -80px; left: -100px;
}

.grid-pattern {
  background-image:
    linear-gradient(rgba(26,43,74,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,43,74,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-content { position: relative; z-index: 1; }

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--neutral-500);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1.15;
  letter-spacing: -0.025em;
  white-space: pre-line;
  max-width: 840px;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 1.3vw, 1.25rem);
  color: var(--navy-text);
  line-height: 1.85;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

/* 10. Section elements */
.section-heading {
  font-size: clamp(2.25rem, 3.5vw, 3rem);
  color: var(--navy-text);
  margin-bottom: 1rem;
}

.section-lead {
  font-size: clamp(1.125rem, 1.3vw, 1.25rem);
  color: var(--navy-text);
  line-height: 1.8;
  max-width: 640px;
}

.section-sub {
  font-size: clamp(1.125rem, 1.3vw, 1.25rem);
  color: var(--navy-text);
  line-height: 1.8;
}

.section-header { margin-bottom: 3.5rem; }
.section-header--center { text-align: center; }
.section-header--center .section-lead,
.section-header--center .section-sub { margin: 0 auto; max-width: 680px; }

/* Numbered badge */
.num-badge {
  width: 32px; height: 32px;
  background: var(--neutral-200);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.num-badge span { font-size: 0.75rem; font-weight: 700; color: var(--navy-text); }

/* Feature list */
.feature-list { display: flex; flex-direction: column; gap: 0.75rem; }
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1rem;
  color: var(--neutral-700);
  line-height: 1.65;
}
.feature-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(0,82,204,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
}
.feature-check svg { width: 12px; height: 12px; color: var(--brand-blue); }

/* 11. Forms */
.form { display: flex; flex-direction: column; gap: 1.5rem; }

.form-group { display: flex; flex-direction: column; gap: 0.5rem; }

.form-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy-text);
}

.form-required {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--white);
  background: var(--brand-blue);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 6px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  font-size: 1rem;
  color: var(--neutral-800);
  background: var(--white);
  border: 1.5px solid var(--neutral-300);
  border-radius: 8px;
  padding: 0.875rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--neutral-400); }
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(0,82,204,0.12);
  outline: none;
}
.form-input.error, .form-textarea.error, .form-select.error {
  border-color: #DC2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.1);
}

.form-textarea { min-height: 140px; resize: vertical; line-height: 1.7; }

.form-select-wrap { position: relative; }
.form-select-wrap::after {
  content: '';
  position: absolute;
  right: 1rem; top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--neutral-500);
  pointer-events: none;
}

.form-error {
  font-size: 0.875rem;
  color: #DC2626;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  display: none;
}
.form-error.visible { display: flex; }

.form-checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.form-checkbox { width: 18px; height: 18px; accent-color: var(--brand-blue); margin-top: 2px; flex-shrink: 0; cursor: pointer; }
.form-checkbox-label { font-size: 0.9375rem; color: var(--neutral-600); cursor: pointer; line-height: 1.6; }
.form-checkbox-label a { color: var(--brand-blue); text-decoration: underline; }

.form-submit {
  align-self: flex-start;
  background: var(--brand-blue);
  color: var(--white);
  border: none;
  font-size: 1.0625rem;
  font-weight: 600;
  padding: 1rem 2.5rem;
  border-radius: 8px;
  min-height: 52px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(0,82,204,0.3);
}
.form-submit:hover { background: var(--brand-blue-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,82,204,0.4); }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Form result messages */
.form-result { display: none; border-radius: var(--radius); padding: 1.5rem 2rem; margin-top: 1rem; }
.form-result.visible { display: block; }
.form-result--success { background: #F0FDF4; border: 1px solid #BBF7D0; }
.form-result--success h3 { color: #166534; font-size: 1.125rem; }
.form-result--success p { color: #15803D; margin-top: 0.5rem; }
.form-result--error { background: #FEF2F2; border: 1px solid #FECACA; }
.form-result--error h3 { color: #991B1B; font-size: 1.125rem; }
.form-result--error p { color: #B91C1C; margin-top: 0.5rem; }

/* 12. FAQ */
.faq-list { display: flex; flex-direction: column; gap: 1rem; max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 1.75rem;
  background: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--neutral-50); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.open .faq-answer { max-height: 500px; }

/* 14. Page-specific components */

/* Product article */
.product-article {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.product-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.product-title {
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  color: var(--navy-text);
  margin: 0.25rem 0 0.5rem;
}
.product-subtitle { font-size: 1rem; color: var(--neutral-500); font-weight: 500; }
.product-body {
  font-size: clamp(1.125rem, 1.2vw, 1.25rem);
  color: var(--neutral-700);
  line-height: 1.85;
  margin-top: 1rem;
}

.product-features-heading {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--navy-text);
  margin-bottom: 1rem;
}

/* Layer diagram */
.layer-diagram { display: flex; flex-direction: column; gap: 0.75rem; }
.layer-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}
.layer-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-blue);
  min-width: 100px;
  flex-shrink: 0;
}
.layer-sep { width: 1px; height: 24px; background: var(--neutral-200); flex-shrink: 0; }
.layer-items { font-size: 0.9375rem; color: var(--neutral-700); }

/* Tech architecture box */
.tech-arch {
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2.5rem;
}
.tech-arch-row {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  margin-bottom: 0.75rem;
}
.tech-arch-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--neutral-500);
  margin-bottom: 0.25rem;
}
.tech-arch-items { font-size: 1.0625rem; color: var(--navy-text); }
.tech-arch-highlight {
  background: rgba(0,82,204,0.15);
  border-color: rgba(0,82,204,0.35);
}
.tech-arch-highlight .tech-arch-label { font-size: 0.9375rem; color: var(--navy-text); font-weight: 700; }
.tech-arch-highlight .tech-arch-items { font-size: 0.875rem; color: var(--neutral-400); margin-top: 0.25rem; }

/* CTA strip */
.cta-strip {
  background: var(--neutral-100);
  border-top: 1px solid var(--neutral-200);
  padding: clamp(3.5rem, 6vw, 5rem) 0;
  text-align: center;
}
.cta-strip h2 {
  font-size: clamp(1.625rem, 2.75vw, 2.25rem);
  color: var(--navy-text);
  margin-bottom: 1rem;
  white-space: pre-line;
  line-height: 1.4;
}
.cta-strip p {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--neutral-600);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

/* Officers grid */
.officer-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.officer-avatar {
  width: 64px; height: 64px;
  background: var(--neutral-200);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}
.officer-avatar svg { width: 30px; height: 30px; color: var(--navy-text); }
.officer-title { font-size: 0.875rem; color: var(--neutral-500); font-weight: 500; line-height: 1.4; margin-bottom: 0.375rem; }
.officer-name { font-size: clamp(1rem, 1.2vw, 1.125rem); font-weight: 700; color: var(--navy-text); }

/* Company overview table */
.overview-table { background: var(--white); border: 1px solid var(--neutral-200); border-radius: var(--radius); overflow: hidden; max-width: 720px; }
.overview-row {
  display: flex;
  align-items: flex-start;
  padding: 1.125rem 2rem;
  border-bottom: 1px solid var(--neutral-100);
}
.overview-row:last-child { border-bottom: none; }
.overview-row:nth-child(even) { background: var(--neutral-50); }
.overview-key {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy-text);
  min-width: 160px;
  flex-shrink: 0;
  padding-right: 1rem;
}
.overview-val {
  font-size: 0.9375rem;
  color: var(--neutral-700);
  line-height: 1.7;
  white-space: pre-line;
}

/* Contact office info */
.office-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2rem;
}
.office-card-title { font-size: 1.125rem; font-weight: 700; color: var(--navy-text); margin-bottom: 1.5rem; }
.office-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.office-info-item:last-child { margin-bottom: 0; }
.office-info-icon { width: 20px; height: 20px; color: var(--brand-blue); flex-shrink: 0; margin-top: 2px; }
.office-info-label { font-size: 0.9375rem; font-weight: 600; color: var(--navy-text); margin-bottom: 0.125rem; }
.office-info-val { font-size: 0.9375rem; color: var(--neutral-600); white-space: pre-line; line-height: 1.6; }

/* Mission cards */
.mission-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2.25rem;
  color: var(--navy-text);
  box-shadow: var(--shadow);
}
.mission-card-icon {
  width: 48px; height: 48px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.mission-card-icon svg { width: 24px; height: 24px; color: var(--navy-text); }
.mission-card h3 { font-size: clamp(1.0625rem, 1.3vw, 1.25rem); color: var(--navy-text); margin-bottom: 0.75rem; }
.mission-card p { font-size: 1rem; color: var(--neutral-600); line-height: 1.75; }

/* ============================================================
   15. Responsive
   ============================================================ */

@media (max-width: 1023px) {
  .nav-links, .nav-lang { display: none; }
  .nav-hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-grid > *:first-child { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  :root { --header-height: 64px; }

  h1 { font-size: clamp(1.875rem, 6vw, 2.5rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 2rem); }

  .hero { padding: clamp(4rem, 10vw, 5.5rem) 0 clamp(3.5rem, 8vw, 4.5rem); }
  .hero-glow--cyan { width: 300px; height: 300px; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .overview-row { flex-direction: column; gap: 0.25rem; }
  .overview-key { min-width: auto; }

  .product-article { padding: 1.5rem; }
  .product-article .grid-2 { grid-template-columns: 1fr; }

  .btn-group { flex-direction: column; align-items: flex-start; }
  .btn-group .btn { width: 100%; justify-content: center; }

  .form-submit { width: 100%; justify-content: center; }

  .cta-strip h2 { white-space: normal; }
}

@media (max-width: 479px) {
  .card { padding: 1.5rem; }
  .section { padding: clamp(3rem, 8vw, 4rem) 0; }
  .officer-card { padding: 1.5rem; }
}

/* ============================================================
   16. Animations & Transitions
   ============================================================ */

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   17. Utility
   ============================================================ */
.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px; width: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
}

.max-w-3xl { max-width: 768px; }
.max-w-2xl { max-width: 640px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.text-white { color: var(--white); }
.text-cyan { color: var(--neutral-600); }
.text-blue { color: var(--brand-blue); }
.text-muted { color: var(--neutral-500); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* ============================================================
   18. Page Hero (inner pages)
   ============================================================ */
.page-hero {
  background: var(--white);
  border-bottom: 1px solid var(--neutral-100);
  padding: clamp(3.5rem, 7vw, 6rem) 0 clamp(3rem, 6vw, 5rem);
  position: relative;
}

.page-hero-title {
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1.125rem;
  white-space: pre-line;
}

.page-hero-subtitle {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--navy-text);
  line-height: 1.85;
  max-width: 640px;
}

/* ============================================================
   19. Two-column layout
   ============================================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 767px) {
  .two-col { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ============================================================
   21. Layer diagram (data-security page)
   ============================================================ */
.layer-diagram { display: flex; flex-direction: column; gap: 1rem; }

.layer-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow);
}

.layer-item--cloud  { border-left: 4px solid var(--neutral-400); }
.layer-item--gateway{ border-left: 4px solid var(--neutral-500); }
.layer-item--comm   { border-left: 4px solid var(--neutral-600); }
.layer-item--chip   { border-left: 4px solid var(--navy-text); }

.layer-badge {
  background: var(--neutral-200);
  color: var(--navy-text);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  white-space: nowrap;
  margin-top: 3px;
}

.layer-content h3 {
  font-size: clamp(1.0625rem, 1.3vw, 1.125rem);
  color: var(--navy-text);
  margin-bottom: 0.375rem;
}

.layer-content p {
  font-size: 0.9375rem;
  color: var(--neutral-600);
  margin-bottom: 0.75rem;
  line-height: 1.65;
}

.layer-content ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.layer-content ul li {
  font-size: 0.8125rem;
  background: var(--neutral-100);
  color: var(--neutral-600);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--neutral-200);
}

/* ============================================================
   22. Use-case cards
   ============================================================ */
.usecase-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow);
}

.usecase-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--neutral-200);
  line-height: 1;
  flex-shrink: 0;
  min-width: 2.5rem;
}

.usecase-content h3 {
  font-size: clamp(1.0625rem, 1.3vw, 1.125rem);
  color: var(--navy-text);
  margin-bottom: 0.5rem;
}

.usecase-content p {
  font-size: 0.9375rem;
  color: var(--neutral-600);
  line-height: 1.75;
}

/* ============================================================
   23. Officers grid
   ============================================================ */
.officers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.officer-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.officer-role {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--brand-blue);
  background: rgba(0,82,204,0.07);
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.875rem;
}

.officer-name {
  font-size: clamp(1.0625rem, 1.3vw, 1.125rem);
  font-weight: 700;
  color: var(--navy-text);
  margin-bottom: 0.25rem;
}

.officer-name-en {
  font-size: 0.875rem;
  color: var(--neutral-400);
}

@media (max-width: 1023px) {
  .officers-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 479px) {
  .officers-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   24. Overview table (uses <table> element)
   ============================================================ */
.overview-table table {
  width: 100%;
  border-collapse: collapse;
}

.overview-table th,
.overview-table td {
  padding: 1.125rem 1.75rem;
  text-align: left;
  border-bottom: 1px solid var(--neutral-100);
  vertical-align: top;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.overview-table th {
  font-weight: 600;
  color: var(--navy-text);
  white-space: nowrap;
  min-width: 160px;
  width: 220px;
  background: var(--neutral-50);
}

.overview-table td {
  color: var(--neutral-700);
}

.overview-table tr:last-child th,
.overview-table tr:last-child td {
  border-bottom: none;
}

.overview-table a {
  color: var(--brand-blue);
  text-decoration: underline;
}

@media (max-width: 600px) {
  .overview-table th,
  .overview-table td {
    display: block;
    width: 100%;
  }
  .overview-table th {
    padding-bottom: 0.25rem;
    border-bottom: none;
    min-width: auto;
  }
  .overview-table td {
    padding-top: 0.25rem;
  }
}

/* ============================================================
   25. Contact page layout
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info-icon {
  width: 40px; height: 40px;
  background: rgba(0,82,204,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--brand-blue);
}

.contact-info-icon svg { width: 20px; height: 20px; }

.contact-info-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.contact-info-value {
  font-size: 0.9375rem;
  color: var(--neutral-700);
  line-height: 1.65;
}

.contact-info-value a {
  color: var(--brand-blue);
  transition: color var(--transition);
}

.contact-note {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: var(--neutral-50);
  border-radius: var(--radius);
  border: 1px solid var(--neutral-200);
  font-size: 0.9375rem;
  color: var(--neutral-600);
  line-height: 1.7;
}

.contact-form-wrap {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group--checkbox {
  gap: 0.625rem;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--neutral-600);
  cursor: pointer;
  line-height: 1.6;
}

.form-checkbox-label input[type="checkbox"] {
  width: 18px; height: 18px;
  flex-shrink: 0;
  accent-color: var(--brand-blue);
  margin-top: 2px;
  cursor: pointer;
}

.form-checkbox-label a {
  color: var(--brand-blue);
  text-decoration: underline;
}

.form-submit-wrap {
  padding-top: 0.5rem;
}

/* Override form-result to match new class names */
.form-result {
  display: none;
  border-radius: var(--radius);
  padding: 2rem;
  margin-top: 1rem;
  text-align: center;
}
.form-result.visible { display: block; }

.form-result svg {
  width: 48px; height: 48px;
  margin: 0 auto 1rem;
}

.form-result h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.form-result--ok {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
}
.form-result--ok svg { color: #16A34A; }
.form-result--ok h3 { color: #166534; }
.form-result--ok p  { color: #15803D; font-size: 1rem; }

.form-result--error {
  background: #FEF2F2;
  border: 1px solid #FECACA;
}
.form-result--error svg { color: #DC2626; }
.form-result--error h3 { color: #991B1B; }
.form-result--error p  { color: #B91C1C; font-size: 1rem; }
.form-result--error a  { color: var(--brand-blue); }

@media (max-width: 1023px) {
  .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ============================================================
   26. Legal content pages
   ============================================================ */
.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-date {
  font-size: 0.9375rem;
  color: var(--neutral-500);
  margin-bottom: 2.5rem;
  padding: 1rem 1.5rem;
  background: var(--neutral-50);
  border-radius: var(--radius-sm);
  border: 1px solid var(--neutral-200);
}

.legal-content h2 {
  font-size: clamp(1.125rem, 1.5vw, 1.375rem);
  color: var(--navy-text);
  margin-top: 2.5rem;
  margin-bottom: 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--neutral-100);
}

.legal-content p {
  font-size: clamp(0.9375rem, 1.05vw, 1rem);
  color: var(--neutral-700);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content ul li {
  font-size: clamp(0.9375rem, 1.05vw, 1rem);
  color: var(--neutral-700);
  line-height: 1.9;
  margin-bottom: 0.375rem;
}

.legal-content a {
  color: var(--brand-blue);
  text-decoration: underline;
}

/* ============================================================
   27. News page
   ============================================================ */
.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 3rem;
}

.filter-btn {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--neutral-600);
  background: var(--white);
  border: 1.5px solid var(--neutral-200);
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.filter-btn:hover {
  color: var(--brand-blue);
  border-color: var(--brand-blue);
  background: rgba(0,82,204,0.04);
}

.filter-btn.active {
  background: var(--brand-blue);
  color: var(--white);
  border-color: var(--brand-blue);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.news-item {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.news-item:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,82,204,0.2);
}

.news-item-header {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 0.75rem;
}

.news-date {
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.news-category {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  background: rgba(0,82,204,0.08);
  color: var(--brand-blue);
}

.news-category--press    { background: rgba(0,153,204,0.1); color: #0369A1; }
.news-category--product  { background: rgba(0,82,204,0.1);  color: var(--brand-blue); }
.news-category--event    { background: rgba(79,70,229,0.1); color: #4338CA; }
.news-category--partner  { background: rgba(5,150,105,0.1); color: #065F46; }
.news-category--corporate{ background: rgba(107,114,128,0.1); color: var(--neutral-600); }

.news-title {
  font-size: clamp(1.0625rem, 1.3vw, 1.125rem);
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1.5;
  margin-bottom: 0.625rem;
}

.news-title a {
  color: inherit;
  transition: color var(--transition);
}
.news-title a:hover { color: var(--brand-blue); }

.news-excerpt {
  font-size: 0.9375rem;
  color: var(--neutral-600);
  line-height: 1.75;
}

.news-loading,
.news-empty {
  text-align: center;
  padding: 4rem 2rem;
  font-size: 1rem;
  color: var(--neutral-400);
}

/* ============================================================
   28. FAQ icon variant (used in inner pages)
   ============================================================ */
.faq-question {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  text-align: left;
  padding: 1.5rem 1.75rem;
  background: none;
  cursor: pointer;
}

.faq-question span {
  font-size: clamp(1rem, 1.1vw, 1.0625rem);
  font-weight: 700;
  color: var(--navy-text);
  flex: 1;
  line-height: 1.6;
}

.faq-icon {
  width: 22px; height: 22px;
  color: var(--neutral-400);
  flex-shrink: 0;
  transition: transform 0.3s;
  margin-top: 1px;
}

.faq-item.open .faq-icon { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer { max-height: 600px; }

.faq-answer p {
  padding: 0 1.75rem 1.5rem;
  font-size: clamp(0.9375rem, 1vw, 1rem);
  color: var(--neutral-700);
  line-height: 1.85;
}

/* ============================================================
   29. Responsive additions for inner page components
   ============================================================ */
@media (max-width: 1023px) {
  .layer-item { grid-template-columns: auto 1fr; }
}

@media (max-width: 767px) {
  .usecase-card { grid-template-columns: auto 1fr; }
  .page-hero-title { white-space: normal; }
  .layer-item { grid-template-columns: 1fr; }
  .layer-badge { display: inline-block; margin-bottom: 0.75rem; }
  .news-item { padding: 1.25rem 1.5rem; }
  .contact-form-wrap { padding: 1.5rem; }
}

/* Investor triangle: stack base pillars on mobile */
@media (max-width: 600px) {
  [style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
}

/* ============================================================
   30. Page images
   ============================================================ */
.page-img-full {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: var(--radius);
  display: block;
  margin: 0 auto 2.5rem;
}

.page-img-hero {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
  margin: 2rem 0 0;
}

.page-img-section {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  margin: 1.5rem 0;
}

.card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
  margin-bottom: 1.25rem;
}

.figure-img {
  width: 100%;
  max-width: 780px;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  margin: 1.5rem auto;
  border: 1px solid var(--neutral-200);
}

.figure-caption {
  text-align: center;
  font-size: 0.875rem;
  color: var(--neutral-500);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ============================================================
   31. Story content (investor page)
   ============================================================ */
.story-content { max-width: 840px; }
.story-heading {
  font-size: clamp(1.375rem, 1.8vw, 1.625rem);
  color: var(--navy-text);
  margin: 2.5rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--neutral-200);
}
.story-heading:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.story-body {
  font-size: clamp(1.0625rem, 1.2vw, 1.125rem);
  color: var(--navy-text);
  line-height: 1.9;
  margin-bottom: 1.25rem;
}
.story-author {
  font-size: 1rem;
  color: var(--neutral-500);
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--neutral-200);
}
.story-figure { margin: 2rem 0; }

/* ============================================================
   2026 REDESIGN — New Components
   ============================================================ */

/* ── Dropdown Navigation ── */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
  display: flex; align-items: center; gap: 0.3rem;
  background: none; border: none;
  padding: 0.5rem 0.75rem;
  font: inherit; font-size: 0.9375rem; font-weight: 500;
  color: var(--navy-text); cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap; line-height: 1.4;
}
.nav-dropdown-trigger svg { width: 13px; height: 13px; flex-shrink: 0; transition: transform 0.2s ease; }
.nav-dropdown:hover .nav-dropdown-trigger,
.nav-dropdown.open .nav-dropdown-trigger { color: var(--brand-blue); background: rgba(0,82,204,0.07); }
.nav-dropdown:hover .nav-dropdown-trigger svg,
.nav-dropdown.open .nav-dropdown-trigger svg { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute; top: calc(100% + 6px); left: 0;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 0.5rem;
  min-width: 210px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown-item {
  display: block; padding: 0.6rem 1rem;
  font-size: 0.875rem; color: var(--navy-text); text-decoration: none;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-dropdown-item:hover { color: var(--brand-blue); background: rgba(0,82,204,0.07); }
.nav-dropdown-item.active { color: var(--brand-blue); background: rgba(0,82,204,0.1); font-weight: 600; }

/* Mobile nav groups */
.nav-mobile-group { border-bottom: 1px solid var(--neutral-100); }
.nav-mobile-group-trigger {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 0.875rem 0;
  background: none; border: none; font: inherit;
  font-size: 0.9375rem; font-weight: 600; color: var(--navy-text); cursor: pointer;
}
.nav-mobile-group-trigger svg { width: 16px; height: 16px; color: var(--neutral-400); transition: transform 0.2s ease; }
.nav-mobile-group-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-mobile-submenu { overflow: hidden; max-height: 0; transition: max-height 0.28s ease; }
.nav-mobile-submenu.open { max-height: 600px; }
.nav-mobile-submenu-item {
  display: block; padding: 0.6rem 0 0.6rem 1rem;
  font-size: 0.875rem; color: var(--neutral-600); text-decoration: none;
  border-bottom: 1px solid var(--neutral-50);
  transition: color var(--transition);
}
.nav-mobile-submenu-item:hover { color: var(--brand-blue); }
.nav-mobile-submenu-item.active { color: var(--brand-blue); font-weight: 600; }

/* ── Hero 3-CTA layout ── */
.hero-cta-group { display: flex; flex-wrap: wrap; gap: 0.875rem; margin-top: 2.5rem; }
.hero-stat-strip {
  display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3rem;
  padding-top: 2.5rem; border-top: 1px solid var(--neutral-100);
}
.hero-stat-item { text-align: left; }
.hero-stat-number { font-size: clamp(1.625rem, 3vw, 2.25rem); font-weight: 800; color: var(--navy-text); line-height: 1; }
.hero-stat-label { font-size: 0.8125rem; color: var(--neutral-500); margin-top: 0.25rem; }

/* ── Challenge Section (dark) ── */
.challenge-section {
  background: var(--neutral-100);
  border-top: 1px solid var(--neutral-200);
  border-bottom: 1px solid var(--neutral-200);
  padding: clamp(4rem, 8vw, 7rem) 0;
}
.challenge-heading { color: var(--navy-text); }
.challenge-lead { color: var(--neutral-600); }
.challenge-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
@media (max-width: 768px) { .challenge-grid { grid-template-columns: 1fr; } }
.challenge-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 2rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.challenge-card:hover { box-shadow: var(--shadow-lg); border-color: var(--neutral-400); }
.challenge-card-tag {
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--neutral-500); margin-bottom: 0.875rem;
}
.challenge-card-title {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem); font-weight: 700;
  color: var(--navy-text); margin-bottom: 1.25rem; line-height: 1.4;
}
.challenge-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.625rem; }
.challenge-list li {
  display: flex; align-items: flex-start; gap: 0.625rem;
  font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.6;
}
.challenge-list li::before {
  content: ''; flex-shrink: 0; width: 5px; height: 5px;
  background: var(--neutral-400); border-radius: 50%; margin-top: 0.6em;
}

/* ── Solution Pillars ── */
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
@media (max-width: 768px) { .pillar-grid { grid-template-columns: 1fr; } }
.pillar-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 2.5rem 2rem; text-align: center;
  box-shadow: var(--shadow); display: flex; flex-direction: column; align-items: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none; color: inherit;
}
.pillar-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,82,204,0.25); }
.pillar-icon {
  width: 68px; height: 68px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 18px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: var(--navy-text);
}
.pillar-icon svg { width: 32px; height: 32px; }
.pillar-tag {
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--neutral-500); margin-bottom: 0.5rem;
}
.pillar-title {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem); font-weight: 700;
  color: var(--navy-text); margin-bottom: 1.25rem; line-height: 1.35;
}
.pillar-features {
  list-style: none; padding: 0; text-align: left; width: 100%;
  display: flex; flex-direction: column; gap: 0.5rem; flex: 1;
}
.pillar-features li {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.9375rem; color: var(--neutral-600);
}
.pillar-features li::before {
  content: '✓'; color: var(--brand-blue); font-weight: 700; font-size: 0.8125rem; flex-shrink: 0;
}
.pillar-cta {
  display: inline-flex; align-items: center; gap: 0.375rem; margin-top: 1.5rem;
  font-size: 0.875rem; font-weight: 600; color: var(--brand-blue); text-decoration: none;
}
.pillar-cta svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.pillar-card:hover .pillar-cta svg { transform: translateX(3px); }

/* ── Industry Cards ── */
.industry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (min-width: 1024px) { .industry-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 540px) { .industry-grid { grid-template-columns: 1fr; } }
.industry-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 1.75rem;
  box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 1rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none; color: inherit;
}
.industry-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,82,204,0.2); }
.industry-icon {
  width: 52px; height: 52px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy-text);
  margin-bottom: 0.25rem;
}
.industry-icon svg { width: 28px; height: 28px; }
.industry-tag { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brand-blue); }
.industry-title { font-size: clamp(1.0625rem, 1.5vw, 1.25rem); font-weight: 700; color: var(--navy-text); line-height: 1.4; }
.industry-divider { height: 1px; background: var(--neutral-100); }
.industry-label { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--neutral-400); margin-bottom: 0.375rem; }
.industry-tags { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.industry-chip {
  font-size: 0.75rem; padding: 0.2rem 0.6rem; border-radius: 999px; font-weight: 500;
}
.industry-chip--problem { background: rgba(239,68,68,0.09); color: #dc2626; }
.industry-chip--solution { background: rgba(0,82,204,0.09); color: var(--brand-blue); }
.industry-read-more { display: flex; align-items: center; gap: 0.375rem; font-size: 0.875rem; font-weight: 600; color: var(--brand-blue); margin-top: auto; }
.industry-read-more svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.industry-card:hover .industry-read-more svg { transform: translateX(3px); }

/* ── Stats Strip ── */
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (min-width: 768px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 1.75rem 1.5rem; text-align: center; box-shadow: var(--shadow);
}
.stat-number { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; color: var(--navy-text); line-height: 1; }
.stat-suffix { font-size: 1.25rem; font-weight: 700; }
.stat-label { font-size: 0.8125rem; color: var(--neutral-500); line-height: 1.5; margin-top: 0.5rem; }
.stat-source { font-size: 0.6875rem; color: var(--neutral-400); margin-top: 0.25rem; }

/* ── Comparison Table ── */
.compare-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); border: 1px solid var(--neutral-200); }
.compare-table { width: 100%; border-collapse: collapse; background: var(--white); min-width: 560px; }
.compare-table th, .compare-table td { padding: 0.875rem 1rem; text-align: center; border-bottom: 1px solid var(--neutral-100); font-size: 0.9375rem; }
.compare-table thead th { background: var(--navy-text); color: #fff; font-weight: 700; font-size: 0.875rem; }
.compare-table thead th:first-child { text-align: left; background: var(--neutral-800); }
.compare-table td:first-child { text-align: left; font-weight: 600; color: var(--navy-text); background: var(--neutral-50); }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover td { background: rgba(0,82,204,0.03); }
.compare-table tbody tr:hover td:first-child { background: rgba(0,82,204,0.05); }
.cmp-good { color: var(--navy-text); font-weight: 700; font-size: 1.1rem; }
.cmp-partial { color: #d97706; font-weight: 700; }
.cmp-none { color: #dc2626; font-weight: 700; }
.cmp-sees { background: rgba(0,82,204,0.06) !important; }

/* ── Market Size ── */
.market-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (min-width: 768px) { .market-grid { grid-template-columns: repeat(5, 1fr); } }
@media (max-width: 480px) { .market-grid { grid-template-columns: 1fr; } }
.market-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 1.5rem; text-align: center; box-shadow: var(--shadow);
}
.market-card--highlight {
  border: 2px solid var(--brand-blue);
  box-shadow: 0 2px 16px rgba(0, 82, 204, 0.1);
}
.market-card--highlight .market-name { color: var(--brand-blue); }
.market-name { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--neutral-500); margin-bottom: 0.75rem; }
.market-size { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: var(--navy-text); line-height: 1; }
.market-cagr { font-size: 0.8125rem; color: var(--neutral-600); font-weight: 600; margin-top: 0.25rem; }
.market-year { font-size: 0.6875rem; color: var(--neutral-400); margin-top: 0.2rem; }

/* ── Business Model ── */
.biz-model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 768px) { .biz-model-grid { grid-template-columns: 1fr; } }
.biz-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow);
}
.biz-type { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--neutral-500); margin-bottom: 0.5rem; }
.biz-title { font-size: clamp(1.25rem, 1.8vw, 1.5rem); font-weight: 700; color: var(--navy-text); margin-bottom: 0.75rem; }
.biz-desc { font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.7; margin-bottom: 1.25rem; }
.biz-items { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.biz-items li { font-size: 0.875rem; color: var(--neutral-600); padding-left: 1.25rem; position: relative; }
.biz-items li::before { content: '→'; position: absolute; left: 0; color: var(--neutral-500); font-weight: 600; }

/* ── Patent Portfolio ── */
.patent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 900px) { .patent-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .patent-grid { grid-template-columns: 1fr; } }
.patent-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 0.75rem;
}
.patent-status-badge {
  display: inline-flex; align-items: center; gap: 0.375rem;
  font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem; border-radius: 999px; width: fit-content;
}
.patent-status-badge--granted { background: var(--neutral-100); color: var(--neutral-700); border: 1px solid var(--neutral-300); }
.patent-status-badge--pending { background: var(--neutral-100); color: var(--neutral-600); border: 1px solid var(--neutral-300); }
.patent-status-badge--international { background: var(--neutral-100); color: var(--neutral-600); border: 1px solid var(--neutral-300); }
.patent-name { font-size: 1rem; font-weight: 700; color: var(--navy-text); line-height: 1.4; }
.patent-desc { font-size: 0.875rem; color: var(--neutral-500); line-height: 1.65; }

/* ── Case Studies ── */
.case-study-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 900px) { .case-study-grid { grid-template-columns: 1fr; } }
.case-study-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); display: flex; flex-direction: column;
}
.case-study-head {
  background: var(--neutral-100);
  border-bottom: 1px solid var(--neutral-200);
  padding: 1.75rem;
}
.case-study-industry {
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--neutral-500); margin-bottom: 0.5rem;
}
.case-study-title { font-size: clamp(1.0625rem, 1.5vw, 1.25rem); font-weight: 700; color: var(--navy-text); line-height: 1.4; }
.case-study-body { padding: 1.75rem; display: flex; flex-direction: column; gap: 1.25rem; flex: 1; }
.before-after { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.ba-item { padding: 1rem; border-radius: var(--radius-sm); }
.ba-before { background: var(--neutral-50); border: 1px solid var(--neutral-300); }
.ba-after  { background: var(--white); border: 1px solid var(--neutral-200); }
.ba-label { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.ba-before .ba-label { color: var(--neutral-600); }
.ba-after  .ba-label { color: var(--navy-text); }
.ba-text { font-size: 0.875rem; color: var(--navy-text); line-height: 1.55; font-weight: 500; }
.case-study-tech { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.tech-chip {
  font-size: 0.75rem; padding: 0.2rem 0.6rem;
  background: var(--neutral-200); color: var(--neutral-700);
  border-radius: 999px; font-weight: 500;
}

/* ── Products Grid ── */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 900px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .product-grid { grid-template-columns: 1fr; } }
.product-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none; color: inherit;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card-thumb {
  aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--neutral-100);
  display: flex; align-items: center; justify-content: center; color: var(--neutral-400);
}
.product-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-card-thumb svg { width: 48px; height: 48px; opacity: 0.5; }
.product-card-body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; gap: 0.5rem; }
.product-card-cat { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--neutral-500); }
.product-card-title { font-size: clamp(1rem, 1.4vw, 1.125rem); font-weight: 700; color: var(--navy-text); line-height: 1.4; }
.product-card-desc { font-size: 0.875rem; color: var(--neutral-500); line-height: 1.65; flex: 1; }
.product-card-uses { display: flex; flex-wrap: wrap; gap: 0.375rem; margin-top: 0.5rem; }
.product-chip { font-size: 0.75rem; padding: 0.2rem 0.6rem; background: var(--neutral-200); color: var(--neutral-700); border-radius: 999px; font-weight: 500; }
.product-card-link-row { display: flex; align-items: center; gap: 0.375rem; font-size: 0.875rem; font-weight: 600; color: var(--brand-blue); margin-top: 0.75rem; }
.product-card-link-row svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.product-card:hover .product-card-link-row svg { transform: translateX(3px); }

/* ── Contact CTA Trio ── */
.cta-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 768px) { .cta-trio { grid-template-columns: 1fr; } }
.cta-type-card {
  background: var(--white); border: 2px solid var(--neutral-200);
  border-radius: var(--radius); padding: 2.5rem 2rem;
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none; color: inherit;
}
.cta-type-card:hover { border-color: var(--brand-blue); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.cta-type-icon {
  width: 68px; height: 68px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--navy-text);
}
.cta-type-icon svg { width: 28px; height: 28px; }
.cta-type-title { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 700; color: var(--navy-text); }
.cta-type-desc { font-size: 0.9375rem; color: var(--neutral-500); line-height: 1.7; }
.cta-type-btn {
  margin-top: 0.5rem; padding: 0.75rem 2rem;
  background: var(--brand-blue); color: #fff;
  border-radius: 999px; font-size: 0.9375rem; font-weight: 600;
  transition: background var(--transition);
}
.cta-type-card:hover .cta-type-btn { background: var(--brand-blue-hover); }

/* ── News Filter ── */
.news-filter { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2.5rem; }
.news-cat-btn {
  padding: 0.4rem 1.125rem; border: 1px solid var(--neutral-300); border-radius: 999px;
  background: var(--white); font-size: 0.875rem; font-weight: 500; color: var(--neutral-500);
  cursor: pointer; transition: all var(--transition);
}
.news-cat-btn:hover { border-color: var(--brand-blue); color: var(--brand-blue); }
.news-cat-btn.active { background: var(--brand-blue); border-color: var(--brand-blue); color: #fff; }

/* ── Why Now strip ── */
.why-now-strip {
  background: var(--neutral-50);
  border-top: 1px solid var(--neutral-200);
  border-bottom: 1px solid var(--neutral-200);
  padding: clamp(4rem, 8vw, 7rem) 0;
}
.why-now-strip::before { display: none; }
.why-now-strip > * { position: relative; z-index: 1; }
.why-now-heading { color: var(--navy-text); }
.why-now-lead { color: var(--neutral-600); }

/* ── Solution page hero accent ── */
.solution-industry-hero { border-left: 4px solid var(--neutral-300); padding-left: 1.25rem; margin-bottom: 2rem; }
.solution-industry-hero h1 { color: var(--navy-text); }

/* ── Feature check list ── */
.feature-check { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.875rem; }
.feature-check li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  font-size: clamp(1rem, 1.2vw, 1.0625rem); color: var(--navy-text); line-height: 1.65;
}
.feature-check li svg { flex-shrink: 0; width: 20px; height: 20px; color: var(--navy-text); margin-top: 0.15em; }

/* ── Tech stack visual ── */
.tech-flow {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0; justify-content: center;
}
.tech-flow-item {
  display: flex; align-items: center; gap: 0;
}
.tech-flow-box {
  padding: 0.6rem 1.25rem; border-radius: 8px; font-size: 0.875rem; font-weight: 600;
  color: #fff; text-align: center;
}
.tech-flow-box--ai { background: var(--navy-text); }
.tech-flow-box--cell { background: #374151; }
.tech-flow-box--hash { background: #4B5563; }
.tech-flow-box--puf { background: #6B7280; }
.tech-flow-box--sensor { background: #374151; }
.tech-flow-box--device { background: var(--navy-text); }
.tech-flow-arrow { padding: 0 0.5rem; color: var(--neutral-400); font-size: 1.25rem; font-weight: 300; }

/* ── Investor Why-Now bullets ── */
.why-now-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (max-width: 640px) { .why-now-cards { grid-template-columns: 1fr; } }
.why-now-card {
  background: var(--white); border: 1px solid var(--neutral-200);
  border-radius: var(--radius); padding: 1.75rem; box-shadow: var(--shadow);
}
.why-now-card-number {
  font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--neutral-400); margin-bottom: 0.5rem;
}
.why-now-card-title { font-size: clamp(1.0625rem, 1.5vw, 1.25rem); font-weight: 700; color: var(--navy-text); margin-bottom: 0.75rem; line-height: 1.4; }
.why-now-card-desc { font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.7; }

/* ── Solutions overview ── */
.solutions-overview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 768px) { .solutions-overview-grid { grid-template-columns: 1fr; } }

/* ── Challenge card body (solutions pages) ── */
.challenge-card-body { font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.7; }

/* ── Pillar card title/body (solutions pages) ── */
.pillar-card-title { font-size: clamp(1.125rem, 1.6vw, 1.375rem); font-weight: 700; color: var(--navy-text); margin-bottom: 0.875rem; line-height: 1.4; }
.pillar-card-body { font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.7; }

/* ── form-check (contact page) ── */
.form-check { display: flex; align-items: flex-start; gap: 0.625rem; cursor: pointer; font-size: 0.9375rem; color: var(--neutral-600); line-height: 1.6; }
.form-check input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--brand-blue); margin-top: 0.15em; flex-shrink: 0; cursor: pointer; }
.form-check a { color: var(--brand-blue); text-decoration: underline; }

/* ── why-now-strip ── */
.why-now-strip { background: var(--neutral-50); border-top: 1px solid var(--neutral-200); border-bottom: 1px solid var(--neutral-200); padding: var(--section-gap) 0; }

/* ============================================================
   Problem Cards (しかし format)
   ============================================================ */
.problem-section { background: var(--white); padding: var(--section-gap) 0; }

.problem-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media (max-width: 900px) { .problem-card-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }

.problem-card {
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 1.25rem;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: box-shadow 0.2s;
}
.problem-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }

.problem-card-icon {
  width: 56px;
  height: 56px;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--navy-text);
}
.problem-card-icon svg { width: 28px; height: 28px; }

.problem-card-category {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neutral-500);
  margin-bottom: 0.75rem;
}

.problem-card-robot {
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1.6;
  margin: 0;
}

.problem-card-however-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1rem 0;
  width: 100%;
  position: relative;
}
.problem-card-however-wrap::before,
.problem-card-however-wrap::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--neutral-300);
}
.problem-card-however-wrap::before { margin-right: 0.75rem; }
.problem-card-however-wrap::after  { margin-left: 0.75rem; }

.problem-card-however {
  font-size: clamp(0.875rem, 1.2vw, 1rem);
  font-weight: 700;
  color: var(--neutral-400);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.problem-card-question {
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  font-weight: 700;
  color: var(--brand-blue);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.problem-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-blue);
  text-decoration: none;
  margin-top: auto;
}
.problem-card-link:hover { text-decoration: underline; }
.problem-card-link svg { width: 16px; height: 16px; }

/* ============================================================
   Ecosystem Positioning (NVIDIA / ATOM / Sees)
   ============================================================ */
.position-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .position-grid { grid-template-columns: 1fr; max-width: 380px; }
}

.position-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: 1.25rem;
  padding: 2.25rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.position-card--sees {
  border: 2px solid var(--brand-blue);
  box-shadow: 0 4px 32px rgba(0, 82, 204, 0.12);
  position: relative;
}

.position-card-icon {
  width: 56px;
  height: 56px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy-text);
  margin-bottom: 1rem;
}
.position-card-icon svg { width: 26px; height: 26px; }

.position-card-company {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 900;
  color: var(--navy-text);
  margin-bottom: 0.375rem;
}

.position-card-role {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--neutral-500);
  margin-bottom: 0.75rem;
}

.position-card-desc {
  font-size: 0.875rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

.position-card-badge {
  margin-top: 1rem;
  background: var(--brand-blue);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.875rem;
  border-radius: 999px;
}

.position-plus {
  font-size: 1.75rem;
  font-weight: 300;
  color: var(--neutral-300);
  padding: 0 1.25rem;
  text-align: center;
}

@media (max-width: 768px) {
  .position-plus { padding: 0.75rem 0; }
}

/* ============================================================
   Partner Target Grid
   ============================================================ */
.partner-target-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) { .partner-target-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .partner-target-grid { grid-template-columns: 1fr; } }

.partner-target-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow 0.2s;
}
.partner-target-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.07); }

.partner-target-icon {
  width: 48px;
  height: 48px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy-text);
  margin-bottom: 1rem;
}
.partner-target-icon svg { width: 24px; height: 24px; }

.partner-target-card h3 {
  font-size: clamp(0.9375rem, 1.3vw, 1.0625rem);
  font-weight: 700;
  color: var(--navy-text);
  margin-bottom: 0.625rem;
  line-height: 1.4;
}

.partner-target-card p {
  font-size: 0.9rem;
  color: var(--neutral-600);
  line-height: 1.7;
  margin: 0;
}

/* ============================================================
   Pillar card static (non-link variant for industry pages)
   ============================================================ */
.pillar-card--static {
  cursor: default;
  text-decoration: none;
}
.pillar-card--static:hover { box-shadow: var(--shadow); transform: none; }

/* ── Breadcrumb link ── */
.breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: var(--neutral-500);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb-link:hover { color: var(--navy-text); }
.why-now-heading { color: var(--navy-text); }

/* ============================================================
   AIEO Summary Block（AI検索最適化用）
   ============================================================ */
.aieo-summary { max-width: 800px; }

.aieo-summary-body {
  margin: 1.25rem 0 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.aieo-summary-body p {
  font-size: clamp(0.9375rem, 1.2vw, 1.0625rem);
  color: var(--neutral-700);
  line-height: 1.85;
}

.aieo-summary-body strong {
  color: var(--navy-text);
  font-weight: 700;
}

.aieo-summary-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.aieo-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--neutral-600);
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 999px;
  padding: 0.25rem 0.875rem;
  white-space: nowrap;
}