:root {
  --bg: #07111f;
  --bg-soft: #0b1c31;
  --panel: rgba(10, 24, 42, 0.78);
  --panel-strong: rgba(13, 29, 49, 0.94);
  --line: rgba(121, 186, 255, 0.18);
  --text: #e8f1ff;
  --muted: #94a9c8;
  --accent: #48d6ff;
  --accent-strong: #7fffd4;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius: 24px;
  --container: min(1120px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(72, 214, 255, 0.22), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(127, 255, 212, 0.16), transparent 22%),
    linear-gradient(180deg, #09101b 0%, #07111f 45%, #050b13 100%);
  font-family: "Noto Sans SC", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 92%);
  pointer-events: none;
}

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-shell {
  position: relative;
  overflow: clip;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(4, 10, 18, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(72, 214, 255, 0.24), rgba(127, 255, 212, 0.16));
  border: 1px solid rgba(127, 255, 212, 0.24);
  font-family: "Outfit", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong,
.site-nav a,
.button,
.info-card h3,
.advantage-item h3,
.timeline-item h3,
.contact-panel h2 {
  font-family: "Outfit", "Noto Sans SC", sans-serif;
}

.brand-text small {
  color: var(--muted);
  letter-spacing: 0.18em;
  font-size: 0.7rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

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

.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--text) !important;
  border: 1px solid rgba(72, 214, 255, 0.4);
  background: rgba(72, 214, 255, 0.08);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: var(--text);
}

.hero {
  padding: 72px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 40px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  font-family: "Outfit", "Noto Sans SC", sans-serif;
  line-height: 1.06;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.3rem);
  max-width: 12ch;
}

.hero-text,
.intro-copy p,
.info-card p,
.advantage-item p,
.timeline-item p,
.contact-panel p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 60ch;
  margin: 22px 0 0;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 144px;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), #28a6ff);
  color: #03111f;
}

.button-secondary {
  border: 1px solid rgba(121, 186, 255, 0.28);
  background: rgba(255, 255, 255, 0.02);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 42px 0 0;
}

.hero-metrics div,
.signal-card,
.info-card,
.advantage-item,
.timeline-item,
.contact-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-metrics div {
  padding: 18px;
  border-radius: 18px;
}

.hero-metrics dt {
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-metrics dd {
  margin: 10px 0 0;
  font-weight: 600;
}

.hero-panel {
  position: relative;
}

.signal-card {
  position: relative;
  padding: 28px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(12, 31, 52, 0.95), rgba(7, 17, 31, 0.95)),
    var(--panel-strong);
}

.signal-title {
  margin: 0 0 18px;
  color: var(--muted);
}

.signal-item {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.signal-item span {
  color: var(--accent);
  font-family: "Outfit", sans-serif;
  letter-spacing: 0.08em;
}

.signal-item strong {
  max-width: 12ch;
  text-align: right;
}

.signal-graph {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  gap: 14px;
  height: 180px;
  margin-top: 28px;
}

.signal-graph i {
  display: block;
  border-radius: 18px 18px 0 0;
  background: linear-gradient(180deg, rgba(127, 255, 212, 0.92), rgba(72, 214, 255, 0.26));
}

.signal-graph i:nth-child(1) { height: 48%; }
.signal-graph i:nth-child(2) { height: 72%; }
.signal-graph i:nth-child(3) { height: 64%; }
.signal-graph i:nth-child(4) { height: 92%; }

.floating-note {
  position: absolute;
  right: -18px;
  bottom: 26px;
  max-width: 220px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(5, 14, 25, 0.88);
  border: 1px solid rgba(127, 255, 212, 0.18);
}

.floating-note span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.section {
  padding: 64px 0;
}

.section-grid,
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: start;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  max-width: 12ch;
}

.intro-copy {
  display: grid;
  gap: 10px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.info-card,
.advantage-item,
.timeline-item {
  padding: 24px;
  border-radius: 22px;
}

.card-index {
  display: inline-block;
  color: var(--accent);
  font-family: "Outfit", sans-serif;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.timeline-item span {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  margin-bottom: 14px;
  background: rgba(72, 214, 255, 0.1);
  color: var(--accent-strong);
  font-family: "Outfit", sans-serif;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 24px;
  align-items: center;
  padding: 34px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(72, 214, 255, 0.18), transparent 28%),
    var(--panel-strong);
}

.contact-panel h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.12;
  max-width: 16ch;
}

.site-footer {
  padding: 0 0 32px;
}

.site-records {
  padding: 0 0 32px;
}

.site-records__inner {
  display: flex;
  justify-content: center;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background: rgba(5, 14, 25, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.footer-brand,
.footer-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.beian-link--police {
  white-space: nowrap;
}

.beian-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  border-radius: 4px;
}

.beian-link:hover,
.beian-link:focus-visible {
  color: var(--accent-strong);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-delay {
  transition-delay: 0.12s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

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

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .split-layout,
  .contact-panel,
  .timeline {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .advantage-list,
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border-radius: 20px;
    background: rgba(6, 14, 24, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-block;
  }

  .floating-note {
    right: 14px;
    bottom: 14px;
  }

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

  .footer-meta {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .hero {
    padding-top: 40px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.4rem);
  }

  .section {
    padding: 48px 0;
  }

  .card-grid,
  .advantage-list,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-text small {
    letter-spacing: 0.12em;
  }

  .signal-item {
    flex-direction: column;
  }

  .signal-item strong {
    text-align: left;
  }

  .contact-panel {
    padding: 26px;
  }
}