:root {
  --white: #ffffff;
  --bg: #f4f7f6;
  --surface: #eef2f1;
  --slate: #1e293b;
  --slate-dark: #0f172a;
  --teal: #0d9488;
  --teal-dark: #0f766e;
  --teal-light: #14b8a6;
  --teal-soft: rgba(13, 148, 136, 0.08);
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #d1ddd9;
  --serif: 'IBM Plex Serif', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(15, 23, 42, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
  background: linear-gradient(145deg, var(--teal-light) 0%, var(--teal-dark) 100%);
  border-radius: 8px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.logo-sub {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--teal);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--slate);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

.hero {
  padding: 120px 0 80px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}

.hero-copy h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--slate);
  margin-bottom: 20px;
}

.hero-copy h1 em {
  font-style: italic;
  color: var(--teal-dark);
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--teal-dark);
  transform: translateY(-1px);
}

.btn-outline {
  color: var(--slate);
  border: 1.5px solid var(--border);
  background: var(--white);
}

.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.hero-dual {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.dual-item {
  flex: 1;
  min-width: 200px;
  padding: 16px 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  border-radius: 4px;
}

.dual-tag {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 6px;
}

.dual-item strong {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate);
}

.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  background: linear-gradient(145deg, var(--slate) 0%, #134e4a 100%);
  border-radius: 12px;
  overflow: hidden;
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}

.globe-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  z-index: 1;
}

.globe-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(20, 184, 166, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.ring-1 { width: 100%; height: 100%; }
.ring-2 { width: 72%; height: 72%; border-color: rgba(20, 184, 166, 0.5); }
.ring-3 { width: 44%; height: 44%; border-style: dashed; }

.globe-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  background: var(--teal-light);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 24px rgba(20, 184, 166, 0.6);
}

.region-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
  list-style: none;
}

.region-tags li {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.section {
  padding: 96px 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.section-tag.light {
  color: var(--teal-light);
}

.section-head {
  margin-bottom: 48px;
}

.section-head.center {
  text-align: center;
}

.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.625rem, 3vw, 2.125rem);
  font-weight: 600;
  color: var(--slate);
}

.about {
  background: var(--white);
}

.about-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}

.about-meta h2 {
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--slate);
}

.about-quote {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-style: italic;
  line-height: 1.5;
  color: var(--teal-dark);
  border-left: 3px solid var(--teal);
  padding-left: 24px;
  margin-bottom: 24px;
}

.about-content p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.85;
}

.about-content strong {
  color: var(--slate);
  font-weight: 600;
}

.business {
  background: var(--surface);
}

.biz-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.biz-card {
  padding: 36px 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: box-shadow 0.3s;
}

.biz-card:hover {
  box-shadow: 0 8px 32px rgba(13, 148, 136, 0.1);
}

.biz-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.biz-index {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--teal);
}

.biz-header h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--slate);
}

.biz-card > p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.biz-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.biz-points li {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding: 14px 16px;
  background: var(--teal-soft);
  border-radius: 4px;
}

.biz-points strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--slate);
  margin-bottom: 4px;
}

.advantages {
  background: var(--white);
}

.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.adv-item {
  padding: 36px 28px;
  border-right: 1px solid var(--border);
  transition: background 0.25s;
}

.adv-item:last-child {
  border-right: none;
}

.adv-item:hover {
  background: var(--teal-soft);
}

.adv-num {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--teal);
  opacity: 0.5;
  margin-bottom: 16px;
}

.adv-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate);
  margin-bottom: 10px;
}

.adv-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.vision {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--slate-dark) 0%, #134e4a 100%);
  text-align: center;
}

.vision-inner {
  max-width: 680px;
}

.vision blockquote {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.55;
  color: var(--white);
  margin: 16px 0 28px;
}

.vision-brand {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal-light);
}

.footer {
  padding: 28px 0;
  background: var(--slate-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.footer-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}

.footer-inner p {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .biz-cards {
    grid-template-columns: 1fr;
  }

  .adv-grid {
    grid-template-columns: 1fr;
  }

  .adv-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .adv-item:last-child {
    border-bottom: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-visual {
    min-height: 280px;
  }

  .section {
    padding: 72px 0;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}