:root {
  color-scheme: dark;
  --ink: #eef7f4;
  --muted: #a7b7b3;
  --faint: #6f817d;
  --line: rgba(190, 228, 220, 0.16);
  --panel: rgba(10, 28, 38, 0.76);
  --panel-solid: #0b1f29;
  --field: #061119;
  --field-alt: #0c1a18;
  --cyan: #55e5d6;
  --green: #8eeeaa;
  --gold: #e7c16b;
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  font-family:
    Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(10, 28, 40, 0.94), rgba(3, 10, 15, 0.96) 34%),
    var(--field);
  color: var(--ink);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(85, 229, 214, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 229, 214, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, black, transparent 78%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image: radial-gradient(rgba(255, 255, 255, 0.8) 0.6px, transparent 0.7px);
  background-size: 4px 4px;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid transparent;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    backdrop-filter 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(5, 15, 22, 0.82);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(85, 229, 214, 0.38);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(85, 229, 214, 0.2), rgba(231, 193, 107, 0.16)),
    rgba(6, 17, 25, 0.88);
  color: var(--white);
  font-weight: 800;
  box-shadow: 0 0 32px rgba(85, 229, 214, 0.18);
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand strong {
  font-size: 16px;
  letter-spacing: 0;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: rgba(238, 247, 244, 0.76);
  font-size: 14px;
}

.desktop-nav a {
  position: relative;
  padding: 12px 0;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 23, 33, 0.82);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.mobile-nav {
  position: fixed;
  top: 76px;
  right: 14px;
  left: 14px;
  z-index: 19;
  display: none;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(6, 17, 25, 0.96);
  box-shadow: var(--shadow);
}

.mobile-nav a {
  display: block;
  padding: 14px 12px;
  color: var(--muted);
}

.hero {
  position: relative;
  display: grid;
  min-height: min(760px, 88svh);
  overflow: hidden;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.08) contrast(1.05);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3, 10, 15, 0.98), rgba(3, 10, 15, 0.75) 44%, rgba(3, 10, 15, 0.2)),
    linear-gradient(180deg, rgba(3, 10, 15, 0.14), rgba(3, 10, 15, 0.92));
}

.hero-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 148px 0 72px;
  align-self: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(44px, 8vw, 92px);
  line-height: 0.98;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  max-width: 660px;
  margin: 28px 0 0;
  color: rgba(238, 247, 244, 0.78);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.75;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-action {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: #031016;
}

.secondary-action {
  border: 1px solid rgba(238, 247, 244, 0.24);
  background: rgba(238, 247, 244, 0.06);
  color: var(--ink);
}

.hero-facts {
  display: grid;
  max-width: 760px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 52px 0 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.hero-facts div {
  min-width: 0;
  padding: 18px;
  background: rgba(6, 17, 25, 0.72);
}

.hero-facts dt {
  color: var(--faint);
  font-size: 12px;
}

.hero-facts dd {
  margin: 8px 0 0;
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 20, 29, 0.92);
}

.signal-band span {
  padding: 22px 14px;
  border-right: 1px solid var(--line);
  color: rgba(238, 247, 244, 0.72);
  font-size: 14px;
  text-align: center;
}

.signal-band span:last-child {
  border-right: 0;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(78px, 10vw, 124px) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-head.split {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.8fr);
  gap: 48px;
  align-items: end;
}

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

.section-head p:not(.eyebrow),
.about-copy p,
.contact-inner p {
  color: rgba(238, 247, 244, 0.72);
  font-size: 17px;
  line-height: 1.82;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--line);
}

.capability {
  min-height: 300px;
  padding: 30px;
  background:
    linear-gradient(180deg, rgba(12, 32, 42, 0.9), rgba(8, 23, 31, 0.9)),
    var(--panel-solid);
}

.capability-code {
  display: inline-block;
  margin-bottom: 76px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.capability h3,
.service-card h3 {
  margin: 0 0 14px;
  font-size: 22px;
}

.capability p,
.service-card p {
  margin: 0;
  color: rgba(238, 247, 244, 0.68);
  line-height: 1.78;
}

.services-section {
  width: 100%;
  padding-right: max(20px, calc((100vw - 1180px) / 2));
  padding-left: max(20px, calc((100vw - 1180px) / 2));
  background:
    linear-gradient(135deg, rgba(8, 29, 42, 0.9), rgba(9, 28, 23, 0.9)),
    var(--field-alt);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  min-height: 272px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(238, 247, 244, 0.055);
}

.service-card span {
  display: inline-block;
  margin-bottom: 56px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.about-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.72fr);
  gap: 52px;
  align-items: start;
}

.about-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(231, 193, 107, 0.08), transparent 36%),
    rgba(8, 23, 31, 0.86);
  box-shadow: var(--shadow);
}

.about-panel dl {
  margin: 0;
}

.about-panel div {
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.about-panel div:last-child {
  border-bottom: 0;
}

.about-panel dt {
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
}

.about-panel dd {
  margin: 8px 0 0;
  color: var(--ink);
  line-height: 1.68;
}

.contact-section {
  width: 100%;
  padding-right: max(20px, calc((100vw - 1180px) / 2));
  padding-left: max(20px, calc((100vw - 1180px) / 2));
  background: #061015;
}

.contact-inner {
  max-width: 880px;
}

.contact-lines {
  display: grid;
  gap: 12px;
  margin-top: 32px;
  color: rgba(238, 247, 244, 0.76);
}

.contact-lines span {
  display: block;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  background: rgba(238, 247, 244, 0.055);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  justify-content: space-between;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 13px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

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

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .mobile-nav.is-open {
    display: block;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding-top: 130px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(3, 10, 15, 0.98), rgba(3, 10, 15, 0.86)),
      linear-gradient(180deg, rgba(3, 10, 15, 0.12), rgba(3, 10, 15, 0.94));
  }

  .hero-facts,
  .capability-grid,
  .section-head.split,
  .about-section {
    grid-template-columns: 1fr;
  }

  .capability-code,
  .service-card span {
    margin-bottom: 34px;
  }

  .service-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header {
    height: 68px;
    padding: 0 16px;
  }

  .brand small {
    display: none;
  }

  .mobile-nav {
    top: 68px;
  }

  .hero-inner {
    width: auto;
    max-width: calc(100vw - 28px);
    margin-right: 14px;
    margin-left: 14px;
    padding: 112px 0 46px;
  }

  .hero h1 {
    font-size: clamp(40px, 13vw, 54px);
    line-height: 1.08;
  }

  .hero-actions a {
    width: 100%;
  }

  .hero-copy {
    max-width: 100%;
    font-size: 16px;
    word-break: break-all;
  }

  .hero-facts {
    margin-top: 38px;
  }

  .hero-facts div {
    padding: 16px;
  }

  .signal-band {
    grid-template-columns: 1fr;
    width: 100vw;
    max-width: 100vw;
  }

  .signal-band span {
    border-right: 0;
  }

  .section,
  .services-section,
  .contact-section {
    width: 100%;
    padding-right: 16px;
    padding-left: 16px;
  }

  .service-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}