:root {
  --brand-navy: #0e1f36;
  --brand-ink: #172b4d;
  --brand-charcoal: #2e3a47;
  --brand-muted: #5b6675;
  --brand-accent: #7ac6a8;
  --brand-gold: #d9bf77;
  --brand-sky: #e4f1ff;
  --surface: #f7f9fc;
  --card: #ffffff;
  --border: #d7e2f0;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-lg: 0 28px 60px rgba(14, 31, 54, 0.18);
  --shadow-md: 0 14px 32px rgba(23, 43, 77, 0.12);
  --shadow-sm: 0 6px 18px rgba(23, 43, 77, 0.08);
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1.25rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --max-width: 1100px;
  --transition: 0.18s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans", "PingFang HK", "PingFang SC", "Noto Sans CJK HK", "Noto Sans CJK SC", "Noto Sans KR", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--brand-charcoal);
  background: linear-gradient(180deg, #f3f7ff 0%, #ffffff 55%);
  line-height: 1.65;
  min-height: 100vh;
}

a {
  color: var(--brand-navy);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover,
a:focus {
  color: var(--brand-accent);
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.navbar {
  padding: var(--spacing-sm) 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
  margin-left: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #ffffff;
}

.navbar-nav .nav-link.active {
  color: #ffffff;
  border-color: var(--brand-accent);
}

.header {
  background: radial-gradient(120% 140% at 10% -20%, rgba(122, 198, 168, 0.18) 0%, rgba(8, 18, 32, 0.8) 38%, #040d18 100%);
  color: #ffffff;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.header .container {
  position: relative;
  z-index: 1;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 1.5rem;
}

.lang-switch button {
  appearance: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.lang-switch button:hover,
.lang-switch button:focus {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.32);
}

.lang-switch button[aria-current="true"] {
  background: rgba(122, 198, 168, 0.26);
  color: #ffffff;
  border-color: rgba(122, 198, 168, 0.5);
}

main {
  padding-bottom: var(--spacing-xl);
}

section {
  padding: clamp(3rem, 6vw, 4.75rem) 0;
}

.section-header {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(122, 198, 168, 0.16);
  color: var(--brand-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

.section-title {
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 800;
  color: var(--brand-navy);
  margin: 0.85rem 0 0.75rem;
}

.section-lead {
  max-width: 680px;
  color: var(--brand-muted);
  font-size: 1rem;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: clamp(2rem, 4vw, 3.25rem);
  padding-top: clamp(5rem, 8vw, 6.5rem);
}

.hero-copy {
  position: relative;
}

.hero-eyebrow {
  font-weight: 700;
  color: var(--brand-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero-title {
  margin: 1rem 0 0.85rem;
  font-size: clamp(2.1rem, 4vw + 1rem, 3rem);
  font-weight: 800;
  color: var(--brand-navy);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.hero-lead {
  color: var(--brand-muted);
  font-size: 1.05rem;
  max-width: 560px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.4rem;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-accent), #4ca989);
  color: #062b27;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: rgba(8, 26, 52, 0.08);
  color: var(--brand-navy);
  border: 1px solid rgba(14, 31, 54, 0.12);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(14, 31, 54, 0.08);
  color: var(--brand-navy);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1.75rem;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(23, 43, 77, 0.08);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.stat-card strong {
  display: block;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--brand-navy);
}

.stat-card span {
  color: var(--brand-muted);
  font-size: 0.9rem;
}

.illustration {
  position: relative;
  padding: 2rem;
}

.illustration::before {
  content: "";
  position: absolute;
  inset: 10%;
  background: radial-gradient(circle at 30% 20%, rgba(122, 198, 168, 0.25), transparent 65%);
  border-radius: 50%;
  filter: blur(0);
}

.illustration img {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  display: block;
  filter: drop-shadow(var(--shadow-md));
  border-radius: var(--radius-lg);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  border: 1px solid rgba(14, 31, 54, 0.08);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  height: 100%;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card h5 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--brand-navy);
  font-weight: 700;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.card p {
  margin: 0;
  color: var(--brand-muted);
  font-size: 0.95rem;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.bullet-list {
  padding-left: 1.2rem;
  margin: 0;
  color: var(--brand-muted);
  font-size: 0.95rem;
  display: grid;
  gap: 0.35rem;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(8, 47, 89, 0.08);
  color: var(--brand-ink);
  margin-right: 0.4rem;
  margin-bottom: 0.4rem;
}

.process {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.25rem;
}

.process-step {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr;
  gap: 1.25rem;
  align-items: start;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(23, 43, 77, 0.08);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-sm);
}

.process-step strong {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-accent);
}

.process-step h6 {
  margin: 0.45rem 0;
  font-size: 1.05rem;
  color: var(--brand-navy);
}

.process-step p {
  margin: 0;
  color: var(--brand-muted);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.portfolio-card {
  background: linear-gradient(135deg, rgba(122, 198, 168, 0.18), rgba(14, 31, 54, 0.05));
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  border: 1px solid rgba(14, 31, 54, 0.08);
  display: grid;
  gap: 0.65rem;
}

.portfolio-card h6 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--brand-navy);
  font-weight: 700;
}

.portfolio-card p {
  margin: 0;
  color: var(--brand-muted);
  font-size: 0.92rem;
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.leader-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(23, 43, 77, 0.08);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.leader-card img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(122, 198, 168, 0.18);
  padding: 0.35rem;
}

.leader-card h5 {
  margin: 0;
  color: var(--brand-navy);
  font-weight: 700;
}

.leader-role {
  font-size: 0.9rem;
  color: var(--brand-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.leader-card p {
  margin: 0.6rem 0 0;
  color: var(--brand-muted);
  font-size: 0.92rem;
}

.contact-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.contact-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(23, 43, 77, 0.08);
  box-shadow: var(--shadow-md);
}

.contact-card p {
  color: var(--brand-muted);
  margin-bottom: 1rem;
}

.contact-items {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.35rem;
  color: var(--brand-navy);
  font-weight: 600;
}

.contact-items span {
  display: block;
  color: var(--brand-muted);
  font-weight: 500;
}

.form-control {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid rgba(23, 43, 77, 0.16);
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: #ffffff;
}

.form-control:focus {
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 4px rgba(122, 198, 168, 0.18);
  outline: none;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-ink);
  margin-bottom: 0.35rem;
}

.footer {
  background: linear-gradient(160deg, #040d18 0%, rgba(8, 26, 52, 0.94) 55%, #0e1f36 100%);
  color: rgba(255, 255, 255, 0.76);
  padding: clamp(2.5rem, 4vw, 3.5rem) 0;
  margin-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer h5 {
  color: #ffffff;
  font-weight: 700;
  margin-top: 0;
}

.footer a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.footer small {
  display: block;
  margin-top: 0.35rem;
  color: rgba(255, 255, 255, 0.58);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: flex-end;
}

.footer-nav a {
  font-size: 0.88rem;
}

.notice {
  font-size: 0.85rem;
  color: var(--brand-muted);
  margin-top: 1.25rem;
}

@media (max-width: 991px) {
  .navbar-nav {
    background: rgba(4, 13, 24, 0.95);
    padding: 1rem;
    border-radius: var(--radius-md);
  }

  .navbar-nav .nav-link {
    margin-left: 0;
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
  }

  .lang-switch {
    margin-left: 0;
    margin-top: 0.75rem;
  }

  .process-step {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575px) {
  .hero-title {
    font-size: clamp(1.85rem, 8vw, 2.35rem);
  }

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

  .card-grid,
  .portfolio-grid,
  .leadership-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }
}