:root {
  color-scheme: light;
  --navy: #0b132b;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #f1f5f9;
  --text: #111827;
  --muted: #64748b;
  --border: #e5e7eb;
  --border-strong: #cbd5e1;
  --max: 1180px;
  --radius: 8px;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  font-family:
    Inter, Manrope, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
h1,
h2,
h3 {
  margin-top: 0;
}

.page-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(229, 231, 235, 0.7);
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(18px);
}

.site-header.is-elevated {
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 180px;
}

.brand-symbol {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--blue);
  font-size: 18px;
  font-weight: 850;
  line-height: 1;
}

.brand-wordmark strong,
.brand-wordmark small {
  display: block;
  line-height: 1.05;
}

.brand-wordmark strong {
  color: var(--navy);
  font-size: 16px;
  font-weight: 850;
  letter-spacing: 0.02em;
}

.brand-wordmark small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #334155;
  font-size: 14px;
  font-weight: 650;
}

.site-nav a {
  padding: 8px 0;
}

.site-nav a:hover {
  color: var(--blue);
}

.language-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.language-switch button {
  min-width: 36px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.language-switch button.is-active {
  background: var(--navy);
  color: #fff;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.header-cta {
  min-height: 38px;
  padding: 0 14px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
}

.header-cta:hover,
.button-primary:hover {
  background: var(--blue-dark);
}

.hero {
  background:
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 440px;
  gap: 64px;
  align-items: center;
  padding: 104px 0 86px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  color: var(--navy);
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 880;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  color: var(--navy);
  font-size: clamp(30px, 4vw, 52px);
  font-weight: 850;
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  color: var(--navy);
  font-size: 19px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 0;
  color: #475569;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-size: 15px;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--blue);
  color: #fff;
}

.button-secondary {
  border-color: var(--border-strong);
  background: var(--surface);
  color: var(--navy);
}

.button-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.hero-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 22px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.panel-header strong {
  padding: 5px 9px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--blue);
  font-size: 12px;
}

.capability-stack {
  display: grid;
  gap: 0;
  padding: 8px 22px 22px;
}

.capability-stack div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.capability-stack div:last-child {
  border-bottom: 0;
}

.capability-stack span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.capability-stack strong {
  color: var(--navy);
  font-size: 16px;
}

.trust-strip {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.trust-grid div {
  padding: 26px 28px;
  border-right: 1px solid var(--border);
}

.trust-grid div:first-child {
  border-left: 1px solid var(--border);
}

.trust-grid strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 17px;
}

.trust-grid p,
.section-heading p,
.service-card p,
.product-row p,
.why-list p,
.cta-layout p {
  color: var(--muted);
}

.section {
  padding: 92px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.card-grid {
  display: grid;
  gap: 16px;
}

.service-grid {
  grid-template-columns: repeat(4, 1fr);
}

.service-card {
  min-height: 178px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.service-card h3 {
  margin-bottom: 10px;
}

.products-section,
.why-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.product-list {
  display: grid;
  gap: 12px;
}

.product-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.product-row > span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.product-row h3 {
  margin-bottom: 8px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.feature-grid div {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--navy);
  font-weight: 800;
}

.why-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}

.why-list {
  display: grid;
  gap: 14px;
}

.why-list div {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.why-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 18px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.process-list span {
  display: block;
  margin-bottom: 22px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.process-list strong {
  color: var(--navy);
  font-size: 17px;
}

.cta-section {
  padding: 76px 0;
  background: var(--navy);
  color: #fff;
}

.cta-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-layout .eyebrow,
.cta-layout h2 {
  color: #fff;
}

.cta-layout h2 {
  max-width: 680px;
  margin-bottom: 12px;
}

.cta-layout p {
  max-width: 700px;
  margin-bottom: 0;
  color: #cbd5e1;
  font-size: 17px;
}

.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border);
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding: 34px 0;
}

.footer-layout strong,
.footer-layout span {
  display: block;
}

.footer-layout strong {
  color: var(--navy);
  font-size: 20px;
  font-weight: 850;
}

.footer-layout span {
  color: var(--muted);
}

.footer-layout p {
  margin: 10px 0 0;
  color: var(--muted);
}

.footer-links {
  display: grid;
  gap: 8px;
  color: var(--muted);
  text-align: right;
}

.footer-links a:hover {
  color: var(--blue);
}

@media (max-width: 1060px) {
  .site-nav {
    display: none;
  }

  .hero-layout,
  .why-layout {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 640px;
  }

  .service-grid,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 28px, var(--max));
  }

  .site-header {
    height: auto;
    min-height: 68px;
    padding: 12px 14px;
  }

  .brand-mark {
    min-width: auto;
  }

  .brand-symbol {
    width: 34px;
    height: 34px;
  }

  .header-actions {
    gap: 8px;
  }

  .header-cta {
    display: none;
  }

  .hero-layout {
    gap: 34px;
    padding: 70px 0 58px;
  }

  h1 {
    font-size: clamp(38px, 12vw, 54px);
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions,
  .cta-layout,
  .footer-layout {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .trust-grid,
  .service-grid,
  .feature-grid,
  .process-list {
    grid-template-columns: 1fr;
  }

  .trust-grid div,
  .trust-grid div:first-child {
    border-right: 1px solid var(--border);
    border-left: 1px solid var(--border);
  }

  .section {
    padding: 66px 0;
  }

  .product-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .capability-stack div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-links {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}