:root {
  --ink: #111316;
  --muted: #5e6673;
  --line: #dfe4ea;
  --paper: #f7f8f5;
  --white: #ffffff;
  --green: #0f6b55;
  --teal: #0b8a8f;
  --gold: #b8861b;
  --coral: #c95f45;
  --night: #15181d;
  --shadow: 0 24px 70px rgba(21, 24, 29, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  padding: 0 clamp(18px, 4vw, 56px);
  color: var(--white);
  transition: background 180ms ease, color 180ms ease, border 180ms ease;
}

.site-header[data-elevated="true"] {
  color: var(--ink);
  background: rgba(247, 248, 245, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 196px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--white);
  background: var(--ink);
  font-weight: 900;
}

.brand strong {
  display: block;
  font-size: 18px;
  line-height: 1;
  letter-spacing: 0;
}

.brand small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: currentColor;
  opacity: 0.72;
}

.desktop-nav {
  display: flex;
  gap: clamp(18px, 3vw, 36px);
  font-size: 14px;
  font-weight: 700;
}

.desktop-nav a {
  opacity: 0.82;
}

.desktop-nav a:hover {
  opacity: 1;
}

.lang-switch {
  width: 52px;
  height: 36px;
  border: 1px solid currentColor;
  color: currentColor;
  background: transparent;
  font-weight: 800;
  cursor: pointer;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
}

.hero-shade {
  background: linear-gradient(90deg, rgba(6, 8, 11, 0.86), rgba(6, 8, 11, 0.48) 52%, rgba(6, 8, 11, 0.28));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 132px 0 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-weight: 900;
}

.primary-action {
  color: var(--white);
  background: var(--green);
}

.secondary-action {
  border: 1px solid rgba(255, 255, 255, 0.54);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(820px, 100%);
  margin: 56px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(8, 11, 14, 0.44);
}

.metric-strip div {
  padding: 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
}

.metric-strip div:last-child {
  border-right: 0;
}

.metric-strip dt {
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 900;
}

.metric-strip dd {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.section {
  padding: clamp(68px, 9vw, 118px) clamp(18px, 4vw, 56px);
}

.section-heading {
  width: min(1180px, 100%);
  margin: 0 auto 34px;
}

.section-heading h2,
.platform-copy h2,
.contact-band h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.intro-band {
  background: var(--paper);
}

.solution-grid,
.delivery-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.solution-card {
  min-height: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 16px 36px rgba(30, 35, 42, 0.06);
}

.card-index {
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
}

.solution-card h3,
.delivery-grid h3 {
  margin: 28px 0 14px;
  font-size: 24px;
}

.solution-card p,
.delivery-grid p,
.platform-copy p,
.capability-list span {
  color: var(--muted);
  line-height: 1.75;
}

.platform-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
  background: var(--night);
  color: var(--white);
}

.platform-copy {
  width: min(540px, 100%);
  justify-self: end;
}

.platform-copy p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.capability-list {
  display: grid;
  gap: 12px;
  width: min(620px, 100%);
}

.capability-list div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 22px;
  border-left: 4px solid var(--teal);
  background: rgba(255, 255, 255, 0.08);
}

.capability-list b {
  font-size: 18px;
}

.capability-list span {
  color: rgba(255, 255, 255, 0.7);
}

.delivery-band {
  background: #eef3f0;
}

.delivery-grid article {
  padding: 26px;
  border-top: 5px solid var(--green);
  background: var(--white);
}

.contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(54px, 8vw, 92px) clamp(18px, 4vw, 56px);
  color: var(--white);
  background: var(--green);
}

.contact-band > div {
  width: min(760px, 100%);
}

.contact-band .eyebrow {
  color: rgba(255, 255, 255, 0.76);
}

.mail-link {
  flex: 0 0 auto;
  padding: 18px 22px;
  color: var(--green);
  background: var(--white);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 900;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 24px 18px;
  color: rgba(255, 255, 255, 0.72);
  background: #090b0e;
  font-size: 14px;
}

@media (max-width: 860px) {
  .site-header {
    height: 64px;
  }

  .desktop-nav {
    display: none;
  }

  .brand {
    min-width: 0;
  }

  .hero {
    min-height: 860px;
  }

  .hero-shade {
    background: rgba(6, 8, 11, 0.68);
  }

  .metric-strip,
  .solution-grid,
  .delivery-grid,
  .platform-band {
    grid-template-columns: 1fr;
  }

  .metric-strip div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  }

  .metric-strip div:last-child {
    border-bottom: 0;
  }

  .platform-copy {
    justify-self: start;
  }

  .capability-list div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contact-band {
    display: block;
  }

  .mail-link {
    display: inline-flex;
    margin-top: 24px;
    max-width: 100%;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 520px) {
  .brand strong {
    font-size: 15px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 820px;
  }

  .hero-content {
    padding-bottom: 36px;
  }

  .solution-card {
    min-height: auto;
  }
}