:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3fb;
  --text: #101217;
  --muted: #5b6472;
  --line: #d8dfea;
  --accent: #0b66ff;
  --accent-deep: #0050cf;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow-soft: 0 12px 40px rgba(15, 32, 56, 0.08);
  --font-ui: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-ui);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  font-feature-settings: "kern" 1, "liga" 1;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 12% 8%, rgba(11, 102, 255, 0.2), transparent 40%),
    radial-gradient(circle at 88% 14%, rgba(122, 174, 255, 0.28), transparent 36%),
    linear-gradient(180deg, #fbfcff 0%, #f2f5fb 48%, #eef3fb 100%);
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(247, 249, 253, 0.78);
  border-bottom: 1px solid rgba(216, 223, 234, 0.7);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 18px;
}

.brand {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  display: block;
  width: clamp(68px, 9vw, 100px);
  height: auto;
  border-radius: 10px;
  opacity: 0.9;
  filter: saturate(0.88) contrast(1.05);
  box-shadow: 0 2px 10px rgba(17, 28, 42, 0.08);
}

.brand-text-wrap {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
}

.brand-title {
  font-size: clamp(1.2rem, 1.9vw, 1.78rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: #172233;
  line-height: 1.08;
}

.brand-tagline {
  font-size: clamp(0.54rem, 0.7vw, 0.68rem);
  font-weight: 600;
  color: #77849a;
  letter-spacing: 0.11em;
  line-height: 1.2;
  max-width: 420px;
  text-transform: uppercase;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
}

.lang-switch select {
  appearance: none;
  background: transparent;
  border: 0;
  color: #1f2f46;
  font: inherit;
  font-weight: 700;
  font-size: 0.82rem;
  padding-right: 8px;
  outline: none;
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-toggle {
  display: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: #263141;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
}

.hero {
  padding: 80px 0 58px;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #4e77bd;
  font-weight: 700;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(2rem, 4.6vw, 4rem);
  letter-spacing: -0.034em;
  line-height: 1.04;
  margin: 0;
  max-width: 860px;
}

.hero-copy {
  max-width: 720px;
  color: #576273;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  margin: 20px 0 0;
}

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

.hero-media-grid {
  margin-top: 28px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.hero-media {
  margin: 0;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid #cfdae8;
  background: #dfe7f4;
  box-shadow: var(--shadow-soft);
}

.hero-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.hero-media-large {
  min-height: 320px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  box-shadow: 0 8px 18px rgba(11, 102, 255, 0.24);
}

.btn-secondary {
  color: #1f2f46;
  background: var(--surface);
  border: 1px solid var(--line);
}

.hero-panel {
  margin-top: 34px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(239, 245, 255, 0.95));
  border: 1px solid #d4dff0;
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  max-width: 560px;
  box-shadow: var(--shadow-soft);
}

.hero-panel-label {
  margin: 0;
  color: #3f6aac;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.hero-panel-title {
  margin: 8px 0 0;
  font-size: 1.24rem;
  font-weight: 800;
}

.hero-panel-text {
  margin: 6px 0 0;
  color: var(--muted);
}

.section {
  padding: 44px 0;
}

.section-head h2,
.vision-wrap h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3.2vw, 2.75rem);
  letter-spacing: -0.03em;
}

.product-card {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 92px 1fr minmax(240px, 0.9fr);
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.product-meta {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0f6eff, #0048c1);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.15rem;
}

.product-content h3 {
  margin: 2px 0 10px;
  font-size: 1.5rem;
}

.product-content p {
  margin: 0;
  color: var(--muted);
}

.product-image-wrap {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid #d2dceb;
  min-height: 220px;
  align-self: stretch;
}

.product-image-wrap img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.feature-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.feature-list li {
  position: relative;
  padding-left: 22px;
  color: #2f3a49;
  font-weight: 600;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(140deg, #1f82ff, #0051cd);
}

.cap-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 20px;
}

.cap-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.cap-card h3 {
  margin: 0;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.cap-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

.vision-wrap {
  background: linear-gradient(165deg, #0e1724, #1a2940 60%, #233a5d);
  color: #ebf2ff;
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 48px);
  box-shadow: 0 18px 40px rgba(11, 20, 35, 0.24);
}

.vision-wrap .eyebrow {
  color: #9dc4ff;
}

.vision-wrap p {
  margin: 14px 0 0;
  color: #c8d8ef;
  max-width: 820px;
}

.site-footer {
  border-top: 1px solid rgba(216, 223, 234, 0.9);
  margin-top: 20px;
}

.footer-content {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
}

.footer-title {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.footer-copy {
  margin: 6px 0 0;
  color: #637286;
}

.footer-link {
  color: #0d5ddb;
  text-decoration: none;
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .hero-media-large {
    min-height: 220px;
  }

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

  .product-card {
    grid-template-columns: 1fr;
  }

  .product-image-wrap {
    min-height: 200px;
  }
}

@media (max-width: 760px) {
  .brand {
    gap: 7px;
  }

  .brand-logo {
    width: clamp(72px, 24vw, 96px);
  }

  .brand-title {
    font-size: 0.88rem;
  }

  .brand-tagline {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: 4vw;
    width: min(240px, 78vw);
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    padding-top: 62px;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}