/* Template 9 — sgn- signal / dark cyan */
:root {
  --sgn-bg: #0a0f1a;
  --sgn-panel: #111827;
  --sgn-cyan: #22d3ee;
  --sgn-electric: #67e8f9;
  --sgn-ink: #e2e8f0;
  --sgn-muted: #94a3b8;
  --sgn-line: rgba(34, 211, 238, 0.28);
  --sgn-shell: min(1120px, calc(100% - 2.5rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.c1lbopihqcnsgn-body {
  margin: 0;
  background: var(--sgn-bg);
  color: var(--sgn-ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.c1lbopihqcnsgn-body a {
  color: inherit;
  text-decoration: none;
}

.c1lbopihqcnsgn-body img {
  display: block;
  max-width: 100%;
  height: auto;
}

.c1lbopihqcnsgn-shell {
  width: var(--sgn-shell);
  margin-inline: auto;
}

.c1lbopihqcnsgn-kicker {
  margin: 0 0 0.55rem;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sgn-cyan);
}

.c1lbopihqcnsgn-blockhead {
  max-width: 40rem;
  margin-bottom: 2.25rem;
}

.c1lbopihqcnsgn-blockhead--center {
  text-align: center;
  margin-inline: auto;
}

.c1lbopihqcnsgn-blockhead h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.55rem, 2.6vw, 2.1rem);
  font-weight: 650;
  letter-spacing: 0.02em;
}

.c1lbopihqcnsgn-blockhead p {
  margin: 0;
  color: var(--sgn-muted);
}

/* Header */
.c1lbopihqcnsgn-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 15, 26, 0.92);
  border-bottom: 1px solid var(--sgn-line);
  backdrop-filter: blur(10px);
}

.c1lbopihqcnsgn-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1rem;
}

.c1lbopihqcnsgn-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.c1lbopihqcnsgn-logo__pulse {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--sgn-cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55);
  animation: sgn-pulse 2.2s ease-out infinite;
}

@keyframes sgn-pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

.c1lbopihqcnsgn-menu-btn {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--sgn-line);
  background: var(--sgn-panel);
  cursor: pointer;
}

.c1lbopihqcnsgn-menu-btn span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 4px auto;
  background: var(--sgn-electric);
}

.c1lbopihqcnsgn-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.c1lbopihqcnsgn-nav ul {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.c1lbopihqcnsgn-nav a {
  font-size: 0.92rem;
  color: var(--sgn-muted);
  transition: color 0.2s ease;
}

.c1lbopihqcnsgn-nav a:hover {
  color: var(--sgn-electric);
}

.c1lbopihqcnsgn-chip {
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--sgn-cyan);
  color: var(--sgn-cyan) !important;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.8rem;
}

/* Hero */
.c1lbopihqcnsgn-hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 80% 20%, rgba(34, 211, 238, 0.12), transparent 60%),
    linear-gradient(180deg, #0a0f1a 0%, #0d1524 100%);
}

.c1lbopihqcnsgn-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.c1lbopihqcnsgn-hero__line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--sgn-cyan), transparent);
  opacity: 0.45;
}

.c1lbopihqcnsgn-hero__line--h {
  top: 28%;
  left: 0;
  right: 0;
  height: 1px;
  animation: sgn-scan 6s linear infinite;
}

.c1lbopihqcnsgn-hero__line--v {
  top: 0;
  bottom: 0;
  left: 62%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--sgn-electric), transparent);
}

.c1lbopihqcnsgn-hero__line--d {
  top: 55%;
  left: 8%;
  width: 35%;
  height: 1px;
  transform: rotate(-8deg);
  opacity: 0.3;
}

@keyframes sgn-scan {
  0% { transform: translateY(0); opacity: 0.2; }
  50% { opacity: 0.55; }
  100% { transform: translateY(40px); opacity: 0.2; }
}

.c1lbopihqcnsgn-hero__layout {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.c1lbopihqcnsgn-hero__copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: 0.03em;
}

.c1lbopihqcnsgn-hero__lead {
  margin: 0 0 1.5rem;
  color: var(--sgn-muted);
  font-size: 1.05rem;
  max-width: 34rem;
}

.c1lbopihqcnsgn-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.c1lbopihqcnsgn-hero__meta {
  margin: 0;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
  color: var(--sgn-cyan);
}

.c1lbopihqcnsgn-hero__meta code {
  color: var(--sgn-electric);
}

.c1lbopihqcnsgn-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--sgn-line);
  background: var(--sgn-panel);
  overflow: hidden;
}

.c1lbopihqcnsgn-hero__visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.c1lbopihqcnsgn-hero__badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  margin: 0;
  padding: 0.35rem 0.7rem;
  background: rgba(10, 15, 26, 0.85);
  border: 1px solid var(--sgn-cyan);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.72rem;
  color: var(--sgn-electric);
}

/* Buttons */
.c1lbopihqcnsgn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.c1lbopihqcnsgn-btn--cyan {
  background: var(--sgn-cyan);
  color: #041018;
}

.c1lbopihqcnsgn-btn--cyan:hover {
  background: var(--sgn-electric);
}

.c1lbopihqcnsgn-btn--ghost {
  border-color: var(--sgn-line);
  color: var(--sgn-electric);
  background: transparent;
}

.c1lbopihqcnsgn-btn--ghost:hover {
  border-color: var(--sgn-cyan);
  background: rgba(34, 211, 238, 0.08);
}

.c1lbopihqcnsgn-btn--bright {
  background: #ecfeff;
  color: #083344;
  font-weight: 700;
}

.c1lbopihqcnsgn-btn--bright:hover {
  background: #fff;
}

/* Stats dashboard */
.c1lbopihqcnsgn-stats {
  padding: 1.5rem 0 3rem;
}

.c1lbopihqcnsgn-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--sgn-line);
  border: 1px solid var(--sgn-line);
}

.c1lbopihqcnsgn-stat {
  background: var(--sgn-panel);
  padding: 1.35rem 1.2rem;
  display: grid;
  gap: 0.35rem;
}

.c1lbopihqcnsgn-stat__label {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--sgn-muted);
  text-transform: uppercase;
}

.c1lbopihqcnsgn-stat__num {
  font-size: clamp(1.6rem, 2.8vw, 2.15rem);
  font-weight: 700;
  color: var(--sgn-electric);
  letter-spacing: 0.02em;
}

.c1lbopihqcnsgn-stat__hint {
  font-size: 0.82rem;
  color: var(--sgn-muted);
}

/* Feature rows */
.c1lbopihqcnsgn-feats {
  padding: 1rem 0 2rem;
}

.c1lbopihqcnsgn-feats > .c1lbopihqcnsgn-shell {
  margin-bottom: 1.5rem;
}

.c1lbopihqcnsgn-row {
  padding: 2.25rem 0;
}

.c1lbopihqcnsgn-row--a {
  background: #0c1322;
}

.c1lbopihqcnsgn-row--b {
  background: #0e1729;
}

.c1lbopihqcnsgn-row__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.c1lbopihqcnsgn-row__inner--flip {
  direction: rtl;
}

.c1lbopihqcnsgn-row__inner--flip > * {
  direction: ltr;
}

.c1lbopihqcnsgn-row__text h3 {
  margin: 0 0 0.65rem;
  font-size: 1.35rem;
}

.c1lbopihqcnsgn-row__text p {
  margin: 0;
  color: var(--sgn-muted);
  max-width: 34rem;
}

.c1lbopihqcnsgn-row__panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  min-height: 7rem;
  padding: 1.25rem;
  border: 1px dashed var(--sgn-line);
  background: rgba(17, 24, 39, 0.7);
}

.c1lbopihqcnsgn-row__panel span {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--sgn-line);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
  color: var(--sgn-cyan);
}

.c1lbopihqcnsgn-row__panel--bars {
  align-items: flex-end;
  gap: 0.7rem;
}

.c1lbopihqcnsgn-row__panel--bars i {
  display: block;
  width: 1.35rem;
  height: var(--h);
  background: linear-gradient(180deg, var(--sgn-electric), var(--sgn-cyan));
  opacity: 0.85;
}

.c1lbopihqcnsgn-row__panel--log {
  flex-direction: column;
  justify-content: center;
  gap: 0.45rem;
}

.c1lbopihqcnsgn-row__panel--log code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.82rem;
  color: var(--sgn-electric);
}

/* Live feed */
.c1lbopihqcnsgn-feed {
  padding: 3.5rem 0;
}

.c1lbopihqcnsgn-feed__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--sgn-line);
  background: var(--sgn-panel);
}

.c1lbopihqcnsgn-feed__list li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1.1rem 1.2rem;
  border-bottom: 1px solid rgba(34, 211, 238, 0.12);
}

.c1lbopihqcnsgn-feed__list li:last-child {
  border-bottom: 0;
}

.c1lbopihqcnsgn-feed__pulse {
  width: 0.55rem;
  height: 0.55rem;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--sgn-cyan);
  box-shadow: 0 0 8px var(--sgn-cyan);
}

.c1lbopihqcnsgn-feed__list strong {
  display: block;
  margin-bottom: 0.2rem;
}

.c1lbopihqcnsgn-feed__list p {
  margin: 0;
  color: var(--sgn-muted);
  font-size: 0.92rem;
}

.c1lbopihqcnsgn-feed__list time {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.75rem;
  color: var(--sgn-cyan);
}

/* Ring process */
.c1lbopihqcnsgn-ring {
  padding: 3.5rem 0 4rem;
  background:
    radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.08), transparent 55%),
    var(--sgn-bg);
}

.c1lbopihqcnsgn-ring__track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.c1lbopihqcnsgn-ring__node {
  text-align: center;
  padding: 0.5rem;
}

.c1lbopihqcnsgn-ring__circle {
  display: grid;
  place-items: center;
  width: 5.5rem;
  height: 5.5rem;
  margin: 0 auto 1rem;
  border-radius: 50%;
  border: 2px solid var(--sgn-cyan);
  box-shadow: inset 0 0 0 6px rgba(10, 15, 26, 0.95), 0 0 18px rgba(34, 211, 238, 0.18);
  font-family: Consolas, "Courier New", monospace;
  font-size: 1.1rem;
  color: var(--sgn-electric);
  background: var(--sgn-panel);
}

.c1lbopihqcnsgn-ring__node h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.c1lbopihqcnsgn-ring__node p {
  margin: 0;
  color: var(--sgn-muted);
  font-size: 0.88rem;
}

/* FAQ */
.c1lbopihqcnsgn-faq {
  padding: 3rem 0;
}

.c1lbopihqcnsgn-faq__stack {
  display: grid;
  gap: 0.75rem;
}

.c1lbopihqcnsgn-faq__item {
  border: 1px solid var(--sgn-line);
  background: var(--sgn-panel);
  padding: 0.2rem 1rem 0.85rem;
}

.c1lbopihqcnsgn-faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 0.9rem 0 0.45rem;
  font-weight: 600;
}

.c1lbopihqcnsgn-faq__item summary::-webkit-details-marker {
  display: none;
}

.c1lbopihqcnsgn-faq__item p {
  margin: 0;
  color: var(--sgn-muted);
  font-size: 0.95rem;
}

/* Bright CTA */
.c1lbopihqcnsgn-go {
  padding: 1rem 0 4rem;
}

.c1lbopihqcnsgn-go__panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2.25rem 2rem;
  background: linear-gradient(120deg, #22d3ee 0%, #a5f3fc 48%, #ecfeff 100%);
  color: #082f49;
}

.c1lbopihqcnsgn-go__panel .c1lbopihqcnsgn-kicker {
  color: #0e7490;
}

.c1lbopihqcnsgn-go__panel h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
}

.c1lbopihqcnsgn-go__panel p {
  margin: 0;
  max-width: 34rem;
}

/* Footer */
.c1lbopihqcnsgn-foot {
  border-top: 1px solid var(--sgn-line);
  padding: 2.75rem 0 1.5rem;
  background: #070b14;
}

.c1lbopihqcnsgn-foot__grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.c1lbopihqcnsgn-logo--foot {
  margin-bottom: 0.75rem;
}

.c1lbopihqcnsgn-foot p {
  margin: 0;
  color: var(--sgn-muted);
  font-size: 0.92rem;
}

.c1lbopihqcnsgn-foot h3 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: var(--sgn-electric);
}

.c1lbopihqcnsgn-foot ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.c1lbopihqcnsgn-foot li + li {
  margin-top: 0.4rem;
}

.c1lbopihqcnsgn-foot a {
  color: var(--sgn-muted);
}

.c1lbopihqcnsgn-foot a:hover {
  color: var(--sgn-cyan);
}

.c1lbopihqcnsgn-foot__links {
  padding-top: 1.25rem;
  border-top: 1px solid rgba(34, 211, 238, 0.12);
  margin-bottom: 1.25rem;
}

.c1lbopihqcnsgn-foot__links h3 {
  margin-bottom: 0.65rem;
}

.c1lbopihqcnsgn-flink {
  color: var(--sgn-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.c1lbopihqcnsgn-foot__copy {
  color: var(--sgn-muted);
  font-size: 0.82rem;
}

/* Responsive */
@media (max-width: 960px) {
  .c1lbopihqcnsgn-hero__layout,
  .c1lbopihqcnsgn-row__inner,
  .c1lbopihqcnsgn-row__inner--flip,
  .c1lbopihqcnsgn-stats__grid,
  .c1lbopihqcnsgn-ring__track,
  .c1lbopihqcnsgn-foot__grid {
    grid-template-columns: 1fr 1fr;
    direction: ltr;
  }

  .c1lbopihqcnsgn-stats__grid {
    grid-template-columns: 1fr 1fr;
  }

  .c1lbopihqcnsgn-ring__track {
    grid-template-columns: 1fr 1fr;
  }

  .c1lbopihqcnsgn-go__panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .c1lbopihqcnsgn-menu-btn {
    display: inline-block;
  }

  .c1lbopihqcnsgn-nav {
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    background: #0b1220;
    border-bottom: 1px solid var(--sgn-line);
  }

  .c1lbopihqcnsgn-nav--open {
    display: flex;
  }

  .c1lbopihqcnsgn-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .c1lbopihqcnsgn-nav li a,
  .c1lbopihqcnsgn-chip {
    display: block;
    padding: 0.75rem 0;
  }

  .c1lbopihqcnsgn-hero {
    padding-top: 3rem;
  }

  .c1lbopihqcnsgn-hero__layout,
  .c1lbopihqcnsgn-row__inner,
  .c1lbopihqcnsgn-stats__grid,
  .c1lbopihqcnsgn-ring__track,
  .c1lbopihqcnsgn-foot__grid,
  .c1lbopihqcnsgn-feed__list li {
    grid-template-columns: 1fr;
  }

  .c1lbopihqcnsgn-feed__list time {
    justify-self: start;
  }

  .c1lbopihqcnsgn-topbar {
    position: relative;
  }

  .c1lbopihqcnsgn-topbar__inner {
    position: relative;
  }
}