:root {
  --bg: #050914;
  --panel: rgba(10, 20, 40, 0.72);
  --panel-strong: rgba(13, 29, 57, 0.9);
  --line: rgba(126, 222, 255, 0.18);
  --line-strong: rgba(0, 245, 255, 0.52);
  --text: #f4f8ff;
  --muted: #a9bad4;
  --dim: #70839f;
  --cyan: #00f5ff;
  --blue: #4d7dff;
  --green: #5cffc6;
  --glow: 0 0 40px rgba(0, 245, 255, 0.22);
  --radius: 24px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 20% 15%, rgba(0, 245, 255, 0.12), transparent 32rem),
    radial-gradient(circle at 78% 20%, rgba(77, 125, 255, 0.16), transparent 28rem),
    linear-gradient(135deg, #030611 0%, #07111f 46%, #02040a 100%);
  color: var(--text);
  font-family:
    "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

#neural-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.5;
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 18px clamp(18px, 4vw, 58px);
  border-bottom: 1px solid rgba(126, 222, 255, 0.12);
  background: rgba(5, 9, 20, 0.76);
  backdrop-filter: blur(18px);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.2), rgba(77, 125, 255, 0.12));
  box-shadow: var(--glow);
  color: var(--cyan);
  font-weight: 900;
  font-size: 24px;
  overflow: hidden;
}

.brand-mark img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 10px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  letter-spacing: 0.08em;
}

.brand small {
  color: var(--dim);
  font-size: 10px;
  letter-spacing: 0.16em;
}

.main-nav {
  justify-self: end;
  display: flex;
  gap: 22px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.main-nav a {
  position: relative;
  transition: color 0.2s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--text);
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  width: 100%;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.header-cta,
.button.primary {
  border: 1px solid rgba(0, 245, 255, 0.72);
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.24), rgba(77, 125, 255, 0.18));
  box-shadow: var(--glow);
}

.button.ghost {
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 92px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: clamp(34px, 6vw, 78px);
  align-items: center;
  min-height: calc(100svh - 84px);
  padding-top: 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(46px, 8vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.06em;
}

h3 {
  margin-bottom: 12px;
  font-size: 24px;
  line-height: 1.18;
}

.hero-lead,
.section-copy p,
.section-heading p,
.cooperation-card p {
  color: var(--muted);
  font-size: 18px;
}

.hero-lead {
  max-width: 680px;
}

.hero-statement {
  display: inline-flex;
  margin: 6px 0 0;
  padding: 10px 14px;
  border: 1px solid rgba(92, 255, 198, 0.28);
  border-radius: 999px;
  color: var(--green);
  background: rgba(92, 255, 198, 0.06);
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-chips span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
}

.hero-visual {
  position: relative;
  min-height: 540px;
  border: 1px solid var(--line);
  border-radius: 40px;
  background:
    linear-gradient(rgba(126, 222, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 222, 255, 0.07) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, rgba(0, 245, 255, 0.22), transparent 18rem),
    rgba(5, 11, 24, 0.7);
  background-size:
    38px 38px,
    38px 38px,
    auto,
    auto;
  box-shadow: inset 0 0 80px rgba(0, 245, 255, 0.08), var(--glow);
  overflow: hidden;
}

.orbit {
  position: absolute;
  inset: 72px;
  border: 1px solid rgba(0, 245, 255, 0.24);
  border-radius: 50%;
  animation: spin 18s linear infinite;
}

.orbit-two {
  inset: 124px 78px;
  border-color: rgba(92, 255, 198, 0.18);
  transform: rotate(38deg);
  animation-duration: 24s;
  animation-direction: reverse;
}

.human-line {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 210px;
  height: 330px;
  top: 70px;
  filter: drop-shadow(0 0 24px rgba(0, 245, 255, 0.52));
}

.node,
.limb {
  position: absolute;
  display: block;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
}

.node {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
}

.head {
  left: 96px;
  top: 10px;
}

.chest {
  left: 96px;
  top: 88px;
}

.hip {
  left: 96px;
  top: 176px;
}

.limb {
  width: 4px;
  height: 112px;
  border-radius: 999px;
  transform-origin: top center;
}

.arm-left {
  left: 96px;
  top: 102px;
  transform: rotate(46deg);
}

.arm-right {
  left: 110px;
  top: 102px;
  transform: rotate(-46deg);
}

.leg-left {
  left: 98px;
  top: 190px;
  transform: rotate(26deg);
}

.leg-right {
  left: 108px;
  top: 190px;
  transform: rotate(-26deg);
}

.signal-card {
  position: absolute;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  background: rgba(8, 17, 34, 0.72);
  box-shadow: var(--glow);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.card-a {
  left: 38px;
  top: 94px;
}

.card-b {
  right: 44px;
  top: 190px;
}

.card-c {
  left: 82px;
  bottom: 86px;
}

.hero-path {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: -28px;
}

.hero-path a {
  position: relative;
  overflow: hidden;
  min-height: 128px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(0, 245, 255, 0.08), transparent),
    rgba(8, 17, 34, 0.62);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.hero-path a:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 245, 255, 0.56);
  background:
    linear-gradient(135deg, rgba(0, 245, 255, 0.14), rgba(77, 125, 255, 0.08)),
    rgba(8, 17, 34, 0.76);
}

.hero-path span {
  display: block;
  margin-bottom: 14px;
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: 0.14em;
}

.hero-path strong,
.hero-path small {
  display: block;
}

.hero-path strong {
  margin-bottom: 6px;
  font-size: 20px;
}

.hero-path small {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: 34px;
  align-items: stretch;
}

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

.mission-card,
.placeholder-panel,
.cooperation-card,
.values-panel,
.tech-card,
.scenario-card,
.product-card,
.contact-card,
.visual-card,
.article-card,
.brand-panel,
.architecture-card,
.brand-dna-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.mission-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 34px;
  min-height: 320px;
}

.mission-card span,
.contact-card span {
  color: var(--green);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mission-card strong {
  display: block;
  margin: 28px 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
}

.mission-card p,
.tech-card p,
.scenario-card p,
.product-card p,
.placeholder-panel p,
.site-footer p,
.contact-card small {
  color: var(--muted);
}

.card-grid {
  display: grid;
  gap: 18px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tech-card,
.scenario-card,
.product-card,
.contact-card {
  padding: 28px;
}

.tech-card {
  min-height: 270px;
}

.card-index {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: 0.16em;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.brand-dna-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 24px;
  padding: clamp(30px, 5vw, 58px);
  background:
    radial-gradient(circle at 10% 10%, rgba(0, 245, 255, 0.14), transparent 24rem),
    rgba(8, 17, 34, 0.82);
}

.brand-dna-panel p {
  color: var(--muted);
  font-size: 18px;
}

.dna-quote {
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.035);
}

.dna-quote span,
.architecture-card span {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.dna-quote strong {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.14;
}

.brand-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(220px, 0.62fr) minmax(220px, 0.62fr);
  gap: 18px;
}

.brand-panel {
  display: grid;
  align-content: space-between;
  gap: 22px;
  min-height: 320px;
  margin: 0;
  padding: 28px;
  overflow: hidden;
}

.brand-panel img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: auto;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
}

.full-logo img {
  width: min(620px, 100%);
}

.mark-logo img {
  width: min(260px, 86%);
}

.brand-panel figcaption {
  display: grid;
  gap: 6px;
}

.brand-panel figcaption strong {
  font-size: 22px;
}

.brand-panel figcaption span {
  color: var(--muted);
}

.qing-panel {
  align-content: center;
  text-align: center;
  background:
    radial-gradient(circle at 50% 25%, rgba(0, 245, 255, 0.16), transparent 14rem),
    var(--panel);
}

.qing-letter {
  display: grid;
  place-items: center;
  width: 150px;
  height: 150px;
  margin: 0 auto 10px;
  border: 1px solid var(--line-strong);
  border-radius: 36px;
  color: var(--cyan);
  font-size: 104px;
  font-weight: 950;
  line-height: 1;
  box-shadow: var(--glow);
}

.qing-panel strong,
.qing-panel span {
  display: block;
}

.qing-panel strong {
  margin-bottom: 10px;
  font-size: 28px;
  letter-spacing: 0.14em;
}

.qing-panel div span {
  color: var(--muted);
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.architecture-card {
  min-height: 210px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(0, 245, 255, 0.08), transparent),
    var(--panel);
}

.architecture-card h3 {
  margin-top: 30px;
}

.architecture-card p {
  color: var(--muted);
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.visual-card {
  overflow: hidden;
  margin: 0;
}

.visual-card img,
.article-card img {
  display: block;
  width: 100%;
  height: auto;
}

.visual-card figcaption {
  padding: 18px 20px 22px;
  color: var(--text);
  font-weight: 800;
}

.product-card.featured {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 430px;
  background:
    radial-gradient(circle at 80% 20%, rgba(0, 245, 255, 0.16), transparent 20rem),
    var(--panel-strong);
}

.tag {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--green);
  font-size: 12px;
}

.product-card ul {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.product-card li {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--muted);
}

.values-panel {
  padding: clamp(30px, 5vw, 58px);
  background:
    linear-gradient(135deg, rgba(0, 245, 255, 0.13), transparent),
    rgba(8, 17, 34, 0.82);
}

.value-lines {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.value-lines p {
  min-height: 150px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.value-lines strong {
  display: block;
  margin-bottom: 14px;
  color: var(--text);
  font-size: 20px;
}

.placeholder-panel {
  display: grid;
  place-content: center;
  min-height: 260px;
  padding: 28px;
  text-align: center;
}

.placeholder-panel span {
  font-size: 28px;
  font-weight: 800;
}

.article-grid {
  display: grid;
  gap: 18px;
}

.article-card {
  overflow: hidden;
}

.article-card span {
  display: inline-flex;
  margin: 20px 22px 10px;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--green);
  font-size: 12px;
}

.article-card h3,
.article-card p {
  margin-left: 22px;
  margin-right: 22px;
}

.article-card h3 {
  font-size: 20px;
}

.article-card p {
  margin-bottom: 24px;
  color: var(--muted);
}

.cooperation-card {
  padding: clamp(32px, 6vw, 70px);
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(92, 255, 198, 0.14), transparent 20rem),
    rgba(8, 17, 34, 0.82);
}

.cooperation-card p {
  max-width: 720px;
  margin: 0 auto 28px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.contact-card strong {
  display: block;
  margin-top: 14px;
  font-size: 18px;
}

.contact-card small {
  display: block;
  margin-top: 8px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 34px 0 44px;
  border-top: 1px solid var(--line);
}

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

.footer-brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 9px;
}

.mobile-quick-nav {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav-toggle {
    justify-self: end;
    display: grid;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
  }

  .nav-toggle span {
    height: 2px;
    background: var(--text);
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .site-header.nav-open .main-nav {
    grid-column: 1 / -1;
    display: grid;
    justify-self: stretch;
    gap: 12px;
    padding: 18px 0 4px;
  }

  .hero,
  .split,
  .brand-showcase,
  .brand-dna-panel {
    grid-template-columns: 1fr;
  }

  .hero-path {
    margin-top: 0;
  }

  .card-grid.three,
  .card-grid.four,
  .visual-grid,
  .contact-grid,
  .architecture-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  h1 {
    letter-spacing: -0.06em;
  }

  .hero-visual {
    min-height: 420px;
    border-radius: 28px;
  }

  .human-line {
    transform: scale(0.76);
  }

  .card-grid.three,
  .card-grid.four,
  .product-list,
  .visual-grid,
  .contact-grid,
  .architecture-grid,
  .value-lines,
  .hero-path {
    grid-template-columns: 1fr;
  }

  .product-card.featured {
    min-height: auto;
  }

  .site-footer {
    display: block;
    padding-bottom: 96px;
  }

  .mobile-quick-nav {
    position: sticky;
    bottom: 12px;
    z-index: 12;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    width: min(420px, calc(100% - 28px));
    margin: 0 auto 14px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(5, 9, 20, 0.86);
    backdrop-filter: blur(16px);
    box-shadow: 0 12px 44px rgba(0, 0, 0, 0.38);
  }

  .mobile-quick-nav a {
    display: grid;
    place-items: center;
    min-height: 42px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
  }

  .mobile-quick-nav a:focus,
  .mobile-quick-nav a:hover {
    color: var(--text);
    background: rgba(0, 245, 255, 0.12);
  }
}