/* ============================================
   株式会社Info Hub — Corporate Site
   Modern, minimal, animation-rich
   ============================================ */

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

:root {
  --primary: #0a1628;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59,130,246,.15);
  --surface: #f8fafc;
  --surface-2: #f1f5f9;
  --text: #1e293b;
  --text-muted: #64748b;
  --white: #ffffff;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,.08), 0 24px 48px rgba(0,0,0,.06);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --font: 'Inter', 'Noto Sans JP', -apple-system, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease-out, transform .6s ease-out;
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- HEADER ---------- */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 12px rgba(0,0,0,.04);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo-img { height: 32px; }
.header-nav { display: flex; gap: 32px; }
.nav-link {
  font-size: .875rem; font-weight: 500; color: var(--text-muted);
  position: relative; transition: var(--transition);
  letter-spacing: .02em;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }

/* Hamburger */
.hamburger { display: none; background: none; border: none; cursor: pointer; width: 28px; height: 20px; position: relative; z-index: 1001; }
.hamburger span {
  display: block; width: 100%; height: 2px; background: var(--text);
  position: absolute; left: 0; transition: var(--transition);
}
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }
.hamburger.active span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
  background: var(--primary);
}
.hero-bg {
  position: absolute; inset: 0;
}
.hero-gradient {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(59,130,246,.2), transparent),
    radial-gradient(ellipse 60% 80% at 80% 20%, rgba(99,102,241,.15), transparent),
    radial-gradient(ellipse 50% 50% at 50% 80%, rgba(14,165,233,.1), transparent);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-particles {
  position: absolute; inset: 0; pointer-events: none;
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  padding: 120px 0 80px;
}
.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 100px;
  color: var(--accent-light);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .1em;
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--white);
  margin-bottom: 24px;
}
.hero-line { display: block; }
.hero-accent {
  background: linear-gradient(135deg, var(--accent-light), #818cf8, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.6);
  line-height: 1.8;
  margin-bottom: 48px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: .95rem; font-weight: 600;
  transition: var(--transition);
  cursor: pointer; border: none;
  letter-spacing: .02em;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(59,130,246,.3);
}
.btn-primary:hover {
  background: #2563eb;
  box-shadow: 0 8px 24px rgba(59,130,246,.4);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,.25);
}
.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.4);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, var(--accent-light), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: .3; transform: scaleY(.6); }
}

/* ---------- SECTIONS ---------- */
.section { padding: 120px 0; }
.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 56px;
  line-height: 1.3;
}

/* ---------- ABOUT ---------- */
.about-text {
  max-width: 880px;
  margin: 0 auto;
}
.about-lead {
  font-size: 1.15rem;
  line-height: 2;
  margin-bottom: 20px;
}
.about-text p { color: var(--text-muted); line-height: 1.9; }
.about-text p strong { color: var(--accent); }

/* ---------- SERVICES ---------- */
.services { background: var(--surface); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), #818cf8);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.service-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-glow);
  border-radius: 12px;
  margin-bottom: 24px;
}
.service-icon svg { width: 24px; height: 24px; color: var(--accent); }
.service-title {
  font-size: 1.2rem; font-weight: 700;
  margin-bottom: 12px;
}
.service-desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.service-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .85rem; font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}
.service-link svg { width: 16px; height: 16px; transition: var(--transition); }
.service-link:hover { gap: 10px; }

/* ---------- NEWS ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  display: block;
}
.news-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.news-meta {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.news-date {
  font-size: .8rem;
  color: var(--text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.news-tag {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 100px;
}
.news-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 12px;
}
.news-excerpt {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.news-more {
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent);
}

/* ---------- PRODUCTS ---------- */
.products { background: var(--primary); color: var(--white); }
.products .section-label { color: var(--accent-light); }
.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 24px;
  padding: 56px;
}
.product-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent-light);
  border: 1px solid rgba(96,165,250,.3);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.product-name {
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 8px;
}
.product-tagline {
  font-size: 1rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 20px;
  line-height: 1.7;
}
.product-desc {
  font-size: .9rem;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
  margin-bottom: 32px;
}
.product-img {
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.approach-item {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}
.approach-item:hover {
  border-color: var(--accent-light);
  background: rgba(96,165,250,.08);
  transform: translateY(-4px);
}
.approach-item svg {
  width: 36px; height: 36px;
  color: var(--accent-light);
}
.approach-item span {
  font-size: .9rem;
  font-weight: 600;
  color: var(--white);
}

/* ---------- COMPANY ---------- */
.company { background: var(--surface); }

/* CEO Profile */
.ceo-profile {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  margin-bottom: 40px;
}
.ceo-image-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.ceo-image-wrap::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,.1), transparent);
  pointer-events: none;
}
.ceo-image {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius);
}
.ceo-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.ceo-name {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.4;
}
.ceo-name-en {
  font-size: .85rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 12px;
}
.ceo-title {
  font-size: .8rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.ceo-bio {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 20px;
}
.ceo-quote {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.8;
  padding: 20px 24px;
  border-left: 3px solid var(--accent);
  background: var(--accent-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0;
  font-style: normal;
}
.ceo-mission {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-top: 20px;
  padding: 20px 24px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.company-table-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
}
.company-table { width: 100%; border-collapse: collapse; }
.company-table th,
.company-table td {
  padding: 20px 28px;
  font-size: .95rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.company-table tr:last-child th,
.company-table tr:last-child td { border-bottom: none; }
.company-table th {
  width: 160px;
  font-weight: 600;
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
  vertical-align: top;
}
.company-table td { color: var(--text-muted); }
.company-list li {
  padding: 4px 0;
  position: relative;
  padding-left: 16px;
}
.company-list li::before {
  content: '';
  position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* Map placeholder */
.map-link { display: block; text-decoration: none; }
.map-placeholder {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  color: var(--text-muted);
  font-size: .95rem; font-weight: 500;
  transition: var(--transition);
}
.map-placeholder:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}
.map-placeholder svg { flex-shrink: 0; }

/* ---------- CONTACT ---------- */
.contact-intro {
  font-size: 1rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: -32px;
  margin-bottom: 48px;
}
.contact-form {
  max-width: 720px;
  margin: 0 auto;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.required { color: #ef4444; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: .95rem;
  color: var(--text);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}
.form-group textarea { resize: vertical; }
.form-group select { cursor: pointer; }

.form-privacy {
  margin-bottom: 28px;
}
.checkbox-label {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; font-size: .9rem; color: var(--text-muted);
}
.checkbox-label input { display: none; }
.checkbox-custom {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-radius: 4px;
  transition: var(--transition);
  flex-shrink: 0;
  position: relative;
}
.checkbox-label input:checked + .checkbox-custom {
  background: var(--accent);
  border-color: var(--accent);
}
.checkbox-label input:checked + .checkbox-custom::after {
  content: '';
  position: absolute; top: 3px; left: 6px;
  width: 5px; height: 9px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  padding: 18px;
  font-size: 1rem;
}
.form-success {
  display: none;
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  padding: 60px 0;
}
.form-success.show { display: block; }
.success-icon { margin-bottom: 20px; }
.success-icon svg {
  width: 64px; height: 64px;
  color: #22c55e;
  margin: 0 auto;
}
.form-success h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.form-success p {
  color: var(--text-muted);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,.6);
  padding: 64px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 48px;
}
.footer-logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: .02em;
}
.footer-tagline { font-size: .9rem; line-height: 1.7; }
.company-url { color: var(--accent); transition: var(--transition); }
.company-url:hover { text-decoration: underline; }
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: .85rem;
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px;
  text-align: center;
  font-size: .8rem;
  color: rgba(255,255,255,.3);
}

/* ---------- EXTRA ANIMATIONS ---------- */

/* Staggered reveal for children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s ease-out, transform .5s ease-out;
}
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: .1s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: .2s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: .3s; }
.reveal-stagger.visible > * {
  opacity: 1;
  transform: none;
}

/* Gradient text shimmer on hero */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.hero-accent {
  background: linear-gradient(90deg, var(--accent-light), #818cf8, #38bdf8, var(--accent-light));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

/* Floating badge */
@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.hero-badge { animation: badgeFloat 4s ease-in-out infinite; }

/* Pulse glow on CTA button */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 16px rgba(59,130,246,.3); }
  50% { box-shadow: 0 4px 32px rgba(59,130,246,.5), 0 0 0 8px rgba(59,130,246,.08); }
}
.hero-actions .btn-primary { animation: pulseGlow 3s ease-in-out infinite; }

/* Service card icon spin on hover */
.service-card:hover .service-icon svg {
  animation: iconBounce .5s ease;
}
@keyframes iconBounce {
  0% { transform: scale(1); }
  40% { transform: scale(1.3) rotate(-8deg); }
  70% { transform: scale(.9) rotate(4deg); }
  100% { transform: scale(1) rotate(0); }
}

/* News card slide arrow on hover */
.news-card:hover .news-more {
  letter-spacing: .04em;
}

/* Product image float */
@keyframes productFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.product-visual {
  animation: productFloat 5s ease-in-out infinite;
}

/* CEO quote fade-in left */
.ceo-quote {
  position: relative;
  overflow: hidden;
}
.ceo-quote::after {
  content: '';
  position: absolute; top: 0; left: 0; width: 3px; height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--accent-light));
  animation: quoteLine 2s ease-out;
}
@keyframes quoteLine {
  from { transform: scaleY(0); transform-origin: top; }
  to { transform: scaleY(1); transform-origin: top; }
}

/* Form input focus glow animation */
@keyframes inputGlow {
  0% { box-shadow: 0 0 0 0 rgba(59,130,246,.3); }
  100% { box-shadow: 0 0 0 4px rgba(59,130,246,.15); }
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  animation: inputGlow .3s ease forwards;
}

/* Section label typing effect */
.section-label {
  position: relative;
  display: inline-block;
}
.section-label::after {
  content: '';
  position: absolute; right: -8px; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Smooth gradient shift on hero background */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.hero-gradient {
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
}

/* Nav link active indicator */
.nav-link.active { color: var(--accent); }
.nav-link.active::after { width: 100%; }

/* Footer link hover slide */
.footer-col a {
  position: relative;
  padding-left: 0;
}
.footer-col a::before {
  content: '';
  position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
  width: 0; height: 2px;
  background: var(--accent-light);
  transition: width .3s ease;
}
.footer-col a:hover { padding-left: 16px; }
.footer-col a:hover::before { width: 12px; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .product-card { grid-template-columns: 1fr; gap: 40px; padding: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .ceo-profile { grid-template-columns: 200px 1fr; gap: 32px; padding: 36px; }
}

@media (max-width: 768px) {
  .header-nav {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100vh;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .header-nav.open {
    opacity: 1;
    pointer-events: all;
  }
  .header-nav .nav-link { font-size: 1.2rem; color: var(--text); }
  .hamburger { display: block; }

  .section { padding: 80px 0; }
  .section-title { margin-bottom: 40px; }
  .services-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .company-table th { width: 100px; padding: 16px; font-size: .85rem; }
  .company-table td { padding: 16px; font-size: .85rem; }
  .product-card { padding: 32px 24px; }
  .ceo-profile { grid-template-columns: 1fr; padding: 28px; }
  .ceo-image { max-width: 200px; margin: 0 auto; }
  .sp-only { display: inline; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .footer-links { grid-template-columns: 1fr; }
}

.sp-only { display: none; }
@media (max-width: 768px) {
  .sp-only { display: inline; }
}