:root {
  --bg: #05080f;
  --bg-2: #08111c;
  --panel: rgba(10, 22, 38, 0.72);
  --line: rgba(94, 234, 212, 0.16);
  --line-strong: rgba(56, 189, 248, 0.35);
  --cyan: #5eead4;
  --sky: #38bdf8;
  --text: #e8f3ff;
  --muted: #8aa0b8;
  --dim: #5d738c;
  --white: #ffffff;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --max: 1180px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --num: Bahnschrift, "DIN Alternate", "Segoe UI", "PingFang SC", sans-serif;
  --header-h: 76px;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px + env(safe-area-inset-top, 0px));
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  color-scheme: dark;
}
#entity { scroll-margin-top: calc(var(--header-h) + 20px); padding-top: 56px; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(56, 189, 248, 0.14), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(94, 234, 212, 0.08), transparent 50%),
    linear-gradient(rgba(56, 189, 248, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
}
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 8, 15, 0.2) 70%, var(--bg) 100%);
}

.site-header, main, .site-footer { position: relative; z-index: 1; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(5, 8, 15, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: env(safe-area-inset-top, 0px);
}
.site-header.is-scrolled { box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25); }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 20px;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  min-width: 0;
}
.brand-mark { height: 32px; width: auto; object-fit: contain; flex-shrink: 0; }
.brand-name { height: 24px; width: auto; max-width: min(168px, 46vw); object-fit: contain; }
span.brand-name {
  height: auto;
  max-width: none;
  font-size: 18px;
  white-space: nowrap;
}
.brand-name span { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--muted);
  font-size: 14px;
  position: relative;
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-links a.active::after,
.nav-links a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--sky));
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, #14b8a6, #0ea5e9);
  color: #04202a !important;
  font-weight: 700;
  font-size: 13px;
}
.nav-cta::after { display: none !important; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  place-items: center;
  gap: 5px;
  flex-direction: column;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
body.nav-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  background: rgba(0, 0, 0, 0.48);
  z-index: 30;
}
body.nav-open { overflow: hidden; }
body.nav-open .nav-overlay { display: block; }

.hero {
  padding: 72px 0 40px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(94, 234, 212, 0.06);
}
.kicker i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: 0.02em; }
h1 { font-size: clamp(36px, 5vw, 62px); margin: 18px 0 16px; }
h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--cyan), var(--sky));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { color: var(--muted); font-size: 16px; max-width: 640px; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}
.btn-primary {
  background: linear-gradient(90deg, #14b8a6, #0ea5e9);
  color: #04202a;
}
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.hero-tags span {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 8px;
}

.hero-visual {
  position: relative;
  min-height: 460px;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.12), transparent 55%), rgba(8, 17, 28, 0.9);
  box-shadow: var(--shadow);
}
.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#netCanvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.18; mix-blend-mode: screen; pointer-events: none; }
.visual-card {
  position: absolute;
  z-index: 2;
  backdrop-filter: blur(12px);
  background: rgba(7, 17, 31, 0.72);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  min-width: 160px;
}
.visual-card b { display: block; font-family: var(--num); font-size: 22px; color: var(--cyan); }
.visual-card span { color: var(--muted); font-size: 12px; }
.vc-1 { top: 28px; left: 24px; }
.vc-2 { right: 24px; top: 42%; }
.vc-3 { left: 18%; bottom: 28px; }

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  padding: 8px 0 64px;
}
.stat {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 16px;
  background: linear-gradient(180deg, rgba(94, 234, 212, 0.06), transparent);
}
.stat strong {
  display: block;
  font-family: var(--num);
  font-size: 30px;
  color: var(--white);
}
.stat span { color: var(--muted); font-size: 13px; }

.section { padding: 28px 0 84px; }
.section-head { margin-bottom: 32px; }
.section-head p { color: var(--muted); max-width: 680px; }
.en {
  color: var(--cyan);
  letter-spacing: 0.24em;
  font-size: 11px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
h2 { font-size: clamp(26px, 3vw, 36px); }

.cards-3, .cards-2, .matrix, .industries { display: grid; gap: 16px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: 1.1fr 0.9fr; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.card-media {
  width: calc(100% + 56px);
  max-width: none;
  height: 148px;
  object-fit: cover;
  margin: -28px -28px 18px;
  border-bottom: 1px solid var(--line);
}
.engine-photo, .page-hero-photo {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 16px;
  margin: 0 0 18px;
  border: 1px solid var(--line);
}
.page-hero-photo { height: 280px; margin-top: 24px; border-radius: 22px; }
.card::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  right: -40px;
  top: -40px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18), transparent 70%);
}
.card h3 { font-size: 22px; margin-bottom: 10px; }
.card p { color: var(--muted); margin: 0; }
.icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  background: rgba(94, 234, 212, 0.08);
  color: var(--cyan);
  font-family: var(--num);
  font-weight: 700;
}

.engine {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
  align-items: stretch;
}
.engine-copy, .engine-board {
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 36px;
  background: rgba(8, 17, 28, 0.8);
}
.engine-copy li { color: var(--muted); margin: 10px 0; }
.engine-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.cell {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
}
.cell b { display: block; color: var(--cyan); font-family: var(--num); font-size: 20px; }

.matrix { grid-template-columns: repeat(5, 1fr); }
.matrix-item {
  text-align: center;
  padding: 24px 12px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.08), transparent);
}
.matrix-item .n {
  width: 42px;
  height: 42px;
  margin: 0 auto 12px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  font-family: var(--num);
}
.matrix-item h3 { font-size: 16px; margin-bottom: 8px; }
.matrix-item p { color: var(--muted); font-size: 13px; margin: 0; }

.industries { grid-template-columns: repeat(3, 1fr); }
.industry {
  min-height: 220px;
  padding: 28px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(5, 8, 15, 0.1), rgba(5, 8, 15, 0.72)),
    radial-gradient(circle at 80% 20%, rgba(94, 234, 212, 0.2), transparent 40%);
}
.industry h3 { margin: 48px 0 8px; }
.industry p { color: var(--muted); margin: 0; }

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.tl {
  border-left: 2px solid var(--line-strong);
  padding: 4px 0 4px 16px;
}
.tl b { color: var(--cyan); font-family: var(--num); }

.cta-band {
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  background:
    radial-gradient(500px 160px at 90% 20%, rgba(56, 189, 248, 0.18), transparent),
    rgba(8, 17, 28, 0.85);
}
.cta-band .btn { flex-shrink: 0; }

.page-hero {
  padding: 56px 0 24px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.page-hero h1 { font-size: clamp(32px, 4vw, 48px); }
.prose {
  color: var(--muted);
  max-width: 820px;
}
.prose h2, .prose h3 { color: var(--text); margin: 32px 0 10px; }
.prose p, .prose li { margin: 0 0 12px; }
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 40px;
}
.info-table th, .info-table td {
  border: 1px solid var(--line);
  padding: 14px 16px;
  text-align: left;
}
.info-table th { width: 180px; color: var(--muted); font-weight: 500; background: rgba(255,255,255,0.02); }

.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 20px; }
.contact-card, form {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px;
  background: rgba(8, 17, 28, 0.8);
}
form label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
form input, form textarea, form select {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 14px;
}
form textarea { min-height: 120px; resize: vertical; }
.form-note { color: var(--dim); font-size: 12px; margin-top: 10px; }
.form-success { color: var(--cyan); display: none; margin-top: 12px; }

.site-footer {
  margin-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: #04070d;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px;
  padding: 48px 0 28px;
}
.footer-grid h4 { margin: 0 0 14px; font-size: 14px; }
.footer-grid a, .footer-grid p {
  color: var(--muted);
  font-size: 13px;
  display: block;
  margin: 8px 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.contact-card p { overflow-wrap: anywhere; word-break: break-word; }
.beian {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 18px 0 28px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}
.beian a { color: var(--muted); }
.beian .police {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 8px;
}
.beian svg { width: 16px; height: 16px; }
.beian img { height: 16px; width: auto; display: inline-block; }

.notice {
  margin: 16px 0 0;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  color: var(--dim);
  font-size: 12px;
}

@media (max-width: 1100px) {
  .matrix { grid-template-columns: repeat(3, 1fr); }
  .stat strong { font-size: 26px; }
}

@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .hero, .engine, .cards-2, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(6, 1fr); }
  .stats .stat:nth-child(-n+2) { grid-column: span 3; }
  .stats .stat:nth-child(n+3) { grid-column: span 2; }
  .matrix, .industries, .timeline, .cards-3 { grid-template-columns: 1fr 1fr; }
  .cards-3 > :last-child:nth-child(odd),
  .industries > :last-child:nth-child(odd),
  .matrix > :last-child:nth-child(odd) { grid-column: 1 / -1; }
  .menu-toggle { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
    left: 0;
    right: 0;
    background: rgba(5, 8, 15, 0.98);
    padding: 12px 20px calc(20px + env(safe-area-inset-bottom, 0px));
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    z-index: 60;
    max-height: calc(100dvh - var(--header-h) - env(safe-area-inset-top, 0px));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: flex;
    align-items: center;
    min-height: 48px;
    font-size: 16px;
    padding: 0 8px;
    border-radius: 12px;
  }
  .nav-links a:hover,
  .nav-links a.active { background: rgba(94, 234, 212, 0.08); }
  .nav-links a.active::after,
  .nav-links a:hover::after { display: none; }
  .nav-cta {
    width: 100%;
    margin-top: 8px;
    min-height: 48px;
  }
  .hero { padding: 40px 0 28px; gap: 24px; align-items: stretch; }
  .hero-visual { min-height: 320px; height: 320px; }
  .visual-card { min-width: 132px; padding: 10px 12px; }
  .visual-card b { font-size: 18px; }
  .cta-band {
    flex-direction: column;
    align-items: stretch;
    padding: 28px;
  }
  .cta-band .btn { width: 100%; }
  .engine-copy, .engine-board { padding: 24px; }
  .engine-board { grid-template-columns: 1fr 1fr; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
    padding: 36px 0 20px;
  }
  .footer-grid > div:first-child,
  .footer-grid > div:last-child { grid-column: 1 / -1; }
  .page-hero { padding: 36px 0 20px; }
  .page-hero-photo { height: 200px; }
  .section { padding: 24px 0 56px; }
}

@media (max-width: 640px) {
  :root { --header-h: 60px; }
  .stats,
  .matrix,
  .industries,
  .timeline,
  .cards-3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats .stat,
  .stats .stat:nth-child(-n+2),
  .stats .stat:nth-child(n+3) { grid-column: auto; }
  .stats .stat:last-child { grid-column: 1 / -1; }
  .container { width: min(var(--max), calc(100% - 24px)); }
  .hero { padding: 28px 0 20px; align-items: stretch; }
  h1 { font-size: clamp(28px, 8.4vw, 40px); margin: 14px 0 12px; }
  .lead { font-size: 15px; }
  .hero-actions { flex-direction: column; gap: 10px; margin-top: 22px; }
  .hero-actions .btn { width: 100%; }
  .hero-tags { margin-top: 18px; }
  .hero-visual { display: none; }
  .hero-actions .btn,
  .cta-band .btn,
  form .btn { border-radius: 14px; }
  .stats { padding-bottom: 36px; }
  .stat { padding: 16px 14px; border-radius: 14px; }
  .stat strong { font-size: 24px; }
  .card { padding: 20px; border-radius: 18px; }
  .card-media {
    width: calc(100% + 40px);
    height: 128px;
    margin: -20px -20px 16px;
  }
  .card h3 { font-size: 20px; }
  .engine-copy, .engine-board {
    padding: 20px;
    border-radius: 20px;
  }
  .engine-photo { height: 140px; }
  .matrix-item { padding: 18px 14px; }
  .industry { min-height: 0; padding: 20px; }
  .industry h3 { margin: 20px 0 8px; }
  .cta-band { padding: 22px; border-radius: 20px; }
  .page-hero h1 { font-size: clamp(26px, 8vw, 36px); }
  .page-hero-photo { height: 160px; border-radius: 16px; margin-top: 16px; }
  .contact-card, form { padding: 20px; border-radius: 18px; }
  form input, form textarea, form select { font-size: 16px; }
  form .btn { width: 100%; }
  .info-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .info-table th { width: 120px; }
  .info-table th, .info-table td { padding: 12px; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
    padding: 28px 0 16px;
  }
  .footer-grid > div:first-child,
  .footer-grid > div:last-child { grid-column: 1 / -1; }
  .beian { padding: 16px 0 calc(20px + env(safe-area-inset-bottom, 0px)); }
  .beian .police { display: inline-flex; margin: 6px 10px; }
  .kicker { letter-spacing: 0.14em; font-size: 11px; }
}

@media (max-width: 360px) {
  .hero-tags span { font-size: 11px; }
  .kicker { letter-spacing: 0.1em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}