:root {
  --bg: #07080c;
  --surface: #0d1016;
  --surface-soft: rgba(16, 20, 29, 0.78);
  --surface-strong: #121722;
  --line: rgba(255, 255, 255, 0.08);
  --ink: #f4f7fb;
  --muted: #9aa4b2;
  --blue: #59a8ff;
  --blue-deep: #2d66d6;
  --green: #68d391;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --container: min(1220px, calc(100% - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Plus Jakarta Sans", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0 0, rgba(89, 168, 255, 0.18), transparent 24%),
    radial-gradient(circle at 100% 12%, rgba(45, 102, 214, 0.18), transparent 20%),
    linear-gradient(180deg, #05060a 0%, #0a0d13 100%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.28), transparent 78%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
.container { width: var(--container); margin: 0 auto; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 6, 10, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  width: var(--container);
  margin: 0 auto;
  min-height: 86px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font: 700 26px/1 "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #12315c, var(--blue-deep));
  box-shadow: 0 14px 34px rgba(45, 102, 214, 0.32);
}
.brand span:last-child { color: var(--blue); }
.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
  flex-wrap: wrap;
}
.nav a {
  padding: 10px 0;
  color: #a6aebb;
  font-size: 18px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav a:hover,
.nav a.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}
.page-shell {
  width: var(--container);
  margin: 0 auto;
  padding: 28px 0 80px;
}
.hero-grid,
.two-grid,
.three-grid,
.story-grid,
.proof-grid,
.blog-grid,
.bounty-grid,
.human-grid,
.feature-grid,
.detail-grid {
  display: grid;
  gap: 16px;
}
.hero-grid { grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); }
.two-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.story-grid { grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr); }
.proof-grid, .blog-grid, .bounty-grid, .human-grid, .feature-grid, .detail-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel,
.hero-panel,
.metric-panel,
.card,
.image-card,
.callout,
.article-card,
.bounty-card,
.human-card,
.detail-card {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.hero-panel,
.panel,
.callout { padding: 30px; }
.card,
.article-card,
.bounty-card,
.human-card,
.detail-card { padding: 22px; }
.image-card { overflow: hidden; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  font-weight: 800;
}
.hero-title {
  margin: 0;
  font: 700 clamp(42px, 7vw, 84px)/0.92 "Space Grotesk", "Plus Jakarta Sans", sans-serif;
  letter-spacing: -0.05em;
  max-width: 10ch;
}
.hero-copy,
.panel-copy,
.section-copy,
.card-copy,
.article-copy,
.bounty-copy,
.human-copy,
.detail-copy {
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.8;
}
.hero-actions,
.inline-actions,
.tags,
.stat-row,
.mini-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-actions,
.inline-actions { margin-top: 24px; }
.primary-btn,
.secondary-btn,
.ghost-chip,
.tag,
.status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 800;
}
.primary-btn {
  background: linear-gradient(135deg, #7ab7ff, var(--blue));
  color: #07101b;
}
.secondary-btn {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  border: 1px solid var(--line);
}
.ghost-chip,
.tag,
.status {
  min-height: auto;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.06);
  color: #d6deea;
  border: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 12px;
}
.section { margin-top: 18px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 20px;
}
.section-title {
  margin: 0;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 0.98;
  letter-spacing: -0.03em;
}
.metric-list,
.signal-list,
.api-list,
.detail-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.metric-item,
.signal-item,
.api-item,
.detail-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}
.metric-item:first-child,
.signal-item:first-child,
.api-item:first-child,
.detail-item:first-child { border-top: 0; padding-top: 0; }
.metric-item strong,
.signal-item strong,
.api-item strong,
.detail-item strong { font-size: 28px; white-space: nowrap; }
.metric-item span,
.signal-item span,
.api-item span,
.detail-item span { color: var(--muted); }
.image-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.image-copy { padding: 18px 20px 20px; }
.image-copy strong,
.article-card h3,
.bounty-card h3,
.human-card h3,
.detail-card h3 { margin: 0; font-size: 24px; }
.image-copy span,
.article-card p,
.bounty-card p,
.human-card p,
.detail-card p { display: block; margin-top: 10px; color: var(--muted); line-height: 1.75; }
.footer-note {
  margin-top: 26px;
  color: #7f8999;
  text-align: center;
  font-size: 14px;
}
.divider-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(104, 211, 145, 0.08);
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
@media (max-width: 1100px) {
  .hero-grid,
  .story-grid,
  .three-grid,
  .proof-grid,
  .blog-grid,
  .bounty-grid,
  .human-grid,
  .feature-grid,
  .detail-grid { grid-template-columns: 1fr; }
  .two-grid { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .topbar-inner { flex-wrap: wrap; padding: 14px 0; }
  .nav { order: 3; width: 100%; margin-left: 0; overflow-x: auto; }
}
@media (max-width: 640px) {
  .container,
  .topbar-inner,
  .page-shell { width: min(1220px, calc(100% - 24px)); }
  .page-shell { padding-top: 22px; }
  .hero-title,
  .section-title { max-width: none; }
  .metric-item,
  .signal-item,
  .api-item,
  .detail-item,
  .section-head { flex-direction: column; align-items: flex-start; }
}
.mini-note {
  margin: 14px 0 0;
  color: #7f8999;
  font-size: 13px;
}
.section-link {
  color: var(--blue);
  font-weight: 700;
}
.card-link {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  color: var(--blue);
  font-weight: 800;
}
.crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 14px;
}
.crumbs a { color: #c8d4e4; }
.hero-kicker {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.hero-kicker strong {
  display: block;
  font-size: 22px;
}
.hero-kicker span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}
.quote-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
}
.quote-card p {
  margin: 0;
  color: #dfe7f2;
  line-height: 1.8;
}
.quote-card span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}
.code-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #0a0e15;
  overflow: auto;
}
.code-card pre {
  margin: 0;
  color: #dfe7f2;
  font: 500 13px/1.8 Consolas, "SFMono-Regular", monospace;
}
.module-strip,
.process-grid,
.faq-grid,
.doc-grid,
.matrix-grid,
.stats-grid,
.signal-grid,
.resource-grid,
.coverage-grid {
  display: grid;
  gap: 16px;
}
.module-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.process-grid,
.faq-grid,
.doc-grid,
.matrix-grid,
.stats-grid,
.signal-grid,
.resource-grid,
.coverage-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.strip-card,
.process-card,
.faq-card,
.doc-card,
.matrix-card,
.resource-card,
.coverage-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,0.03);
}
.strip-card strong,
.process-card strong,
.faq-card strong,
.doc-card strong,
.matrix-card strong,
.resource-card strong,
.coverage-card strong {
  display: block;
  font-size: 24px;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
}
.strip-card span,
.process-card p,
.faq-card p,
.doc-card p,
.matrix-card p,
.resource-card p,
.coverage-card p {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.75;
}
.filter-bar,
.pill-row,
.meta-pills,
.checklist,
.link-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-chip,
.meta-chip,
.check-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: #d6deea;
  font-size: 13px;
  font-weight: 700;
}
.filter-chip.active {
  border-color: rgba(89,168,255,0.35);
  background: rgba(89,168,255,0.12);
  color: var(--blue);
}
.stack {
  display: grid;
  gap: 16px;
}
.split-panel {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}
.timeline {
  display: grid;
  gap: 14px;
}
.timeline-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}
.timeline-step {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(89,168,255,0.12);
  border: 1px solid rgba(89,168,255,0.24);
  color: var(--blue);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 800;
}
.timeline-copy strong {
  display: block;
  font-size: 20px;
  font-family: "Space Grotesk", sans-serif;
}
.timeline-copy span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}
.mini-head {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 800;
}
.note-panel {
  padding: 20px;
  border: 1px dashed rgba(255,255,255,0.12);
  border-radius: 22px;
  background: rgba(255,255,255,0.02);
}
.note-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}
@media (max-width: 1100px) {
  .module-strip,
  .process-grid,
  .faq-grid,
  .doc-grid,
  .matrix-grid,
  .stats-grid,
  .signal-grid,
  .resource-grid,
  .coverage-grid,
  .split-panel { grid-template-columns: 1fr; }
}
a.resource-card,
a.coverage-card,
a.strip-card,
a.doc-card,
a.matrix-card,
a.faq-card,
a.process-card,
a.human-card,
a.bounty-card,
a.article-card,
a.card {
  display: block;
}
.jump-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.jump-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: #d6deea;
  font-size: 13px;
  font-weight: 700;
}
.jump-link:hover {
  color: var(--blue);
  border-color: rgba(89,168,255,0.3);
  background: rgba(89,168,255,0.1);
}