:root {
  --bg: #ffffff;
  --bg-alt: #f6f9fc;
  --bg-dark: #0f172a;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #4b5563;
  --border: #dbe3ec;
  --accent: #0f5ea8;
  --accent-2: #0ea5e9;
  --shadow: 0 12px 36px rgba(15, 23, 42, 0.08);
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.container {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid rgba(219, 227, 236, 0.9);
}
.nav-wrap {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.brand-logo {
  width: 183px;
  height: auto;
  object-fit: contain;
}
.brand-text { min-width: 0; }
.brand-title { font-weight: 800; font-size: 1rem; letter-spacing: -0.02em; }
.brand-subtitle { color: #64748b; font-size: 0.76rem; }
.nav { display: flex; gap: 28px; }
.nav a, .footer-links a {
  font-size: 0.95rem;
  color: #475569;
  transition: color 0.2s ease;
}
.nav a:hover, .footer-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 18px;
  padding: 14px 22px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.small { padding: 11px 16px; border-radius: 14px; }
.btn-primary {
  background: var(--text);
  color: white;
  box-shadow: var(--shadow);
}
.btn-primary:hover { background: #1c2a43; }
.btn-secondary {
  background: white;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: #f8fafc; }

.hero-section {
  background:
    radial-gradient(circle at top right, rgba(14,165,233,0.15), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, #ffffff 72%);
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  padding: 78px 0 88px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 10px 14px;
  background: #eff8ff;
  border: 1px solid #bae6fd;
  color: #0369a1;
  font-size: 0.9rem;
  font-weight: 600;
}
.hero-copy h1 {
  margin: 18px 0 18px;
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}
.hero-copy h1 strong {
  display: block;
  margin-top: 10px;
  color: var(--accent);
}
.hero-text, .section-text, .footer-text { color: var(--muted); }
.hero-text { max-width: 760px; font-size: 1.08rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-points, .hero-stats { display: grid; gap: 12px; margin-top: 22px; }
.hero-points { max-width: 760px; }
.hero-point {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 14px 16px; border: 1px solid var(--border); border-radius: 20px; background: white;
  box-shadow: var(--shadow);
}
.hero-point-icon {
  width: 22px; height: 22px; border-radius: 999px; background: #e0f2fe; color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 800;
}
.hero-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.hero-stat, .stat-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: white;
  box-shadow: var(--shadow);
}
.hero-stat strong, .stat-card strong { display: block; font-size: 1.6rem; font-weight: 800; letter-spacing: -0.03em; }
.hero-stat span, .stat-card span { color: #64748b; font-size: 0.9rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-panel { overflow: hidden; }
.hero-product-image-wrap {
  position: relative;
  min-height: 300px;
  background: linear-gradient(135deg, #0f172a 0%, #0b4a7f 50%, #0891b2 100%);
}
.hero-product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.96;
}
.hero-product-overlay {
  position: absolute;
  left: 24px;
  top: 24px;
  max-width: 520px;
  color: white;
  text-shadow: 0 2px 18px rgba(0,0,0,0.25);
}
.hero-product-overlay h3 {
  margin: 12px 0 10px;
  font-size: 2rem;
  line-height: 1.05;
}
.hero-product-overlay p { margin: 0; color: rgba(255,255,255,0.88); font-size: 0.95rem; }
.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.16);
  color: white;
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(10px);
}
.chip-muted {
  background: #f8fafc;
  color: var(--text);
  border: 1px solid var(--border);
}
.category-grid {
  padding: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.category-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 18px;
  background: white;
}
.category-card h4 { margin: 8px 0 6px; font-size: 1.06rem; }
.category-card p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.icon-badge {
  width: 46px; height: 46px; border-radius: 16px;
  background: #e0f2fe; color: var(--accent); font-size: 1.35rem;
  display: inline-flex; align-items: center; justify-content: center;
}

.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: white; }
.section h2 { margin: 0 0 14px; font-size: clamp(2rem, 3.4vw, 3rem); line-height: 1.08; letter-spacing: -0.04em; }
.section-heading { max-width: 850px; margin-bottom: 32px; }
.eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.bright { color: rgba(255,255,255,0.88); }
.two-col {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 36px;
  align-items: start;
}
.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.mini-grid .category-card { box-shadow: var(--shadow); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.product-card {
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.product-card:hover { transform: translateY(-2px); }
.product-card.active { border-color: var(--accent-2); box-shadow: 0 18px 36px rgba(14, 165, 233, 0.14); }
.product-card-image {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: contain;
  background: linear-gradient(180deg, #f8fbff, #f0f7fb);
  padding: 18px;
}
.product-card-body { padding: 22px; }
.product-card-body h3 { margin: 8px 0 10px; font-size: 1.2rem; line-height: 1.15; }
.product-card-body p { margin: 0 0 14px; color: var(--muted); font-size: 0.95rem; }
.card-link { color: var(--text); font-weight: 700; font-size: 0.94rem; }

.product-detail {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
  padding: 22px;
}
.product-detail-media {
  border-radius: 24px;
  background: linear-gradient(180deg, #f8fbff, #f0f7fb);
  border: 1px solid var(--border);
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 26px;
}
.product-detail-media img {
  width: 100%; height: 100%; max-height: 440px; object-fit: contain;
}
.product-detail-body h3 {
  margin: 10px 0 10px;
  font-size: 2rem;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.detail-note { font-size: 0.92rem; color: #64748b; }
.detail-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.feature-box {
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 18px;
  background: white;
}
.feature-title {
  font-weight: 800;
  margin-bottom: 12px;
}
.feature-box ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.feature-box li { color: var(--muted); position: relative; padding-left: 22px; }
.feature-box li::before {
  content: "✓";
  position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-list span {
  border: 1px solid var(--border); background: #f8fafc; border-radius: 999px; padding: 10px 14px; color: #334155; font-size: 0.92rem;
}
.detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

.industry-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.industry-card {
  padding: 22px;
  border-radius: 26px;
  border: 1px solid var(--border);
  background: white;
  box-shadow: var(--shadow);
}
.industry-card h3 { margin: 12px 0 8px; font-size: 1.16rem; }
.industry-card p { margin: 0; color: var(--muted); }

.about-grid { align-items: start; }
.about-cards { display: grid; gap: 16px; }
.about-card {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  background: rgba(255,255,255,0.06);
  padding: 22px;
  color: rgba(255,255,255,0.86);
}
.about-card-title { font-weight: 800; margin-bottom: 8px; color: white; }
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.about-stats .stat-card { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.12); color: white; box-shadow: none; }
.about-stats .stat-card span { color: rgba(255,255,255,0.66); }

.contact-grid {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 24px;
}
.contact-card { padding: 22px; margin-top: 18px; }
.contact-line { margin-bottom: 10px; color: #334155; }
.contact-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.inquiry-form { padding: 22px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
label { display: block; }
label span {
  display: block; margin-bottom: 8px; font-weight: 600; color: #334155;
}
input, textarea {
  width: 100%; border-radius: 18px; border: 1px solid var(--border); padding: 14px 16px; outline: none; background: white;
}
input:focus, textarea:focus { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.10); }
.inquiry-form > label { margin-top: 16px; }
.form-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }

.site-footer {
  border-top: 1px solid var(--border);
  background: white;
  padding: 30px 0 38px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr 0.8fr;
  gap: 24px;
  align-items: start;
}
.footer-brand { display: flex; gap: 14px; align-items: center; }
.footer-logo { width: 150px; object-fit: contain; }
.footer-links { display: grid; gap: 10px; }
.footer-contact { display: grid; gap: 10px; color: #475569; }

@media (max-width: 1080px) {
  .hero-grid, .two-col, .contact-grid, .product-detail, .footer-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .desktop-nav { display: none; }
  .nav-wrap { flex-wrap: wrap; padding: 14px 0; }
  .brand { width: 100%; }
  .brand-logo { width: 140px; }
  .hero-grid { padding: 50px 0 56px; }
  .hero-stats, .industry-grid, .product-grid, .mini-grid, .category-grid, .detail-columns, .form-grid, .about-stats { grid-template-columns: 1fr; }
  .hero-product-overlay { position: static; padding: 22px; color: white; }
  .hero-product-image-wrap { min-height: auto; }
  .hero-product-image { height: 280px; object-fit: contain; padding: 24px; }
  .category-grid { padding-top: 0; }
  .product-detail { padding: 18px; }
  .product-detail-media { min-height: 260px; }
}