:root {
  --blue: #044ab3;
  --blue-strong: #023b91;
  --blue-soft: #eef5ff;
  --ink: #121826;
  --ink-soft: #465160;
  --line: rgba(4, 74, 179, 0.16);
  --white: #ffffff;
  --mist: #f6f8fb;
  --teal: #18a999;
  --amber: #d89b2b;
  --rose: #d85a73;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.blog-shell {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
  line-height: 1.5;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  background: var(--blue);
  color: var(--white);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  padding: 16px 28px;
  color: var(--white);
  transition: background-color 260ms var(--ease-out), color 260ms var(--ease-out), border-color 260ms var(--ease-out);
}

.site-header.is-solid {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(18, 24, 38, 0.08);
  color: var(--blue);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  font-weight: 700;
}

.brand-mark {
  width: 12px;
  height: 12px;
  background: currentColor;
  animation: markPulse 1.6s ease-in-out infinite;
}

.brand-text {
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 650;
}

.nav a {
  opacity: 0.88;
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
}

.nav a:hover,
.nav a:focus-visible {
  opacity: 1;
  transform: translateY(-1px);
}

.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}

.icon-button,
.menu-toggle {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  border-radius: 4px;
  background: transparent;
  color: currentColor;
  cursor: pointer;
}

.menu-toggle {
  display: none;
}

.menu-toggle span {
  width: 18px;
  height: 1px;
  margin: 3px 0;
  background: currentColor;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 148px;
  min-height: 44px;
  gap: 14px;
  padding: 4px 4px 4px 14px;
  border: 0;
  border-radius: 4px;
  background: var(--white);
  color: var(--blue);
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

.button-blue {
  background: var(--blue);
  color: var(--white);
}

.button-ghost {
  border: 1px solid currentColor;
  background: transparent;
  color: currentColor;
}

.arrow-box {
  position: relative;
  display: block;
  width: 36px;
  height: 36px;
  overflow: hidden;
  border-radius: 3px;
  background: rgba(4, 74, 179, 0.08);
}

.button-blue .arrow-box {
  background: rgba(255, 255, 255, 0.14);
}

.arrow-box::before,
.arrow-box::after,
.card-arrow::before,
.card-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 14px;
  background: currentColor;
  clip-path: polygon(18% 0, 100% 0, 100% 82%, 82% 82%, 82% 31%, 13% 100%, 0 87%, 69% 18%, 18% 18%);
  transform: translate(-50%, -50%);
  transition: transform 420ms var(--ease-out), opacity 420ms var(--ease-out);
}

.arrow-box::after,
.card-arrow::after {
  transform: translate(-28px, 14px);
  opacity: 0;
}

.button:hover .arrow-box::before,
.story-card:hover .card-arrow::before,
.track-card:hover .card-arrow::before,
.resource-card:hover .card-arrow::before {
  transform: translate(18px, -28px);
  opacity: 0;
}

.button:hover .arrow-box::after,
.story-card:hover .card-arrow::after,
.track-card:hover .card-arrow::after,
.resource-card:hover .card-arrow::after {
  transform: translate(-50%, -50%);
  opacity: 1;
}

.mobile-panel {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 32px;
  padding: 92px 24px 24px;
  background: var(--white);
  color: var(--blue);
  transform: translateX(100%);
  transition: transform 420ms var(--ease-out);
}

.mobile-panel.open {
  transform: translateX(0);
}

.mobile-panel nav {
  display: grid;
  align-content: start;
  gap: 18px;
  font-size: 42px;
  line-height: 1;
}

.mobile-panel p {
  margin: 0;
  max-width: 560px;
  color: var(--ink-soft);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--blue);
  color: var(--white);
}

.network-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 44px;
  min-height: 100vh;
  padding: 120px 28px 34px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  max-width: 980px;
}

.eyebrow {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.68);
  font-family: "Fragment Mono", Consolas, "Courier New", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow.blue {
  color: rgba(4, 74, 179, 0.68);
}

.hero h1,
.page-hero h1,
.section-heading h2,
.article-header h1 {
  margin: 0;
  font-weight: 520;
  letter-spacing: 0;
  line-height: 0.98;
}

.hero h1 {
  max-width: 840px;
  font-size: 104px;
}

.hero-summary {
  display: grid;
  grid-template-columns: minmax(0, 560px) auto;
  align-items: end;
  gap: 28px;
  margin-top: 34px;
}

.hero-summary p,
.section-copy,
.page-hero p,
.article-header p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 20px;
  font-weight: 540;
  line-height: 1.38;
}

.hero-console {
  align-self: end;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  overflow: hidden;
}

.console-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.72);
  font-family: "Fragment Mono", Consolas, "Courier New", monospace;
  font-size: 12px;
}

.console-list {
  display: grid;
}

.console-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.console-item:last-child {
  border-bottom: 0;
}

.console-item span:first-child {
  color: rgba(255, 255, 255, 0.58);
  font-family: "Fragment Mono", Consolas, "Courier New", monospace;
  font-size: 12px;
}

.console-item strong {
  display: block;
  margin-bottom: 5px;
  font-size: 15px;
}

.console-item small {
  color: rgba(255, 255, 255, 0.64);
  line-height: 1.45;
}

.section {
  padding: 96px 28px;
}

.section-blue {
  background: var(--blue);
  color: var(--white);
}

.section-white {
  background: var(--white);
  color: var(--blue);
}

.section-mist {
  background: var(--mist);
  color: var(--ink);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 42px;
}

.section-heading h2,
.page-hero h1 {
  max-width: 760px;
  font-size: 72px;
}

.section-white .section-copy,
.section-mist .section-copy,
.page-hero.light p {
  color: rgba(4, 74, 179, 0.68);
}

.story-grid,
.track-grid,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

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

.story-card,
.track-card,
.resource-card,
.metric-card,
.article-panel {
  border-radius: 6px;
  overflow: hidden;
}

.story-card,
.track-card,
.resource-card {
  display: flex;
  flex-direction: column;
  min-height: 420px;
  background: var(--white);
  color: var(--blue);
}

.story-card.dark,
.track-card.dark {
  background: var(--blue);
  color: var(--white);
}

.story-media {
  position: relative;
  min-height: 210px;
  background: var(--blue-soft);
  overflow: hidden;
}

.story-media img {
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.05);
  transition: transform 700ms var(--ease-out), filter 700ms var(--ease-out);
}

.story-card:hover img {
  transform: scale(1.035);
  filter: saturate(1) contrast(1.08);
}

.abstract-visual {
  position: relative;
  min-height: 210px;
  background: var(--blue);
  overflow: hidden;
}

.abstract-visual::before,
.abstract-visual::after {
  content: "";
  position: absolute;
  inset: 22%;
  border: 1px solid rgba(255, 255, 255, 0.52);
  transition: transform 700ms var(--ease-out), opacity 700ms var(--ease-out);
}

.abstract-visual::after {
  inset: 38%;
  opacity: 0.5;
}

.visual-grid {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    var(--blue);
  background-size: 34px 34px;
}

.visual-dots {
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.88) 0 1px, transparent 2px),
    linear-gradient(135deg, var(--blue), var(--ink));
  background-size: 28px 28px, auto;
}

.visual-lines {
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.2) 0 1px, transparent 1px 18px),
    var(--blue-strong);
}

.track-card:hover .abstract-visual::before {
  transform: scale(1.08) rotate(7deg);
}

.track-card:hover .abstract-visual::after {
  transform: scale(0.9) rotate(-7deg);
  opacity: 0.82;
}

.card-body {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.card-kicker,
.article-meta,
.tag-chip {
  font-family: "Fragment Mono", Consolas, "Courier New", monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card-kicker {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(4, 74, 179, 0.66);
}

.dark .card-kicker {
  color: rgba(255, 255, 255, 0.66);
}

.card-arrow {
  position: relative;
  width: 34px;
  height: 34px;
  overflow: hidden;
}

.card-body h3 {
  margin: 0;
  font-size: 28px;
  font-weight: 540;
  line-height: 1.08;
}

.card-body p {
  margin: 0;
  color: rgba(4, 74, 179, 0.68);
  line-height: 1.58;
}

.dark .card-body p {
  color: rgba(255, 255, 255, 0.7);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  min-height: 160px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--white);
}

.metric-card strong {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 42px;
  font-weight: 520;
  line-height: 1;
}

.metric-card span {
  color: var(--ink-soft);
}

.page-hero {
  display: grid;
  align-items: end;
  min-height: 62vh;
  padding: 120px 28px 56px;
  background: var(--blue);
  color: var(--white);
}

.page-hero.light {
  min-height: 48vh;
  background: var(--white);
  color: var(--blue);
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 520px);
  gap: 42px;
  align-items: end;
}

.content-list {
  display: grid;
  gap: 14px;
}

.list-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.list-row h3 {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 28px;
  font-weight: 540;
  line-height: 1.12;
}

.list-row p {
  margin: 0;
  color: var(--ink-soft);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
  color: var(--blue);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(240px, 320px);
  gap: 54px;
  align-items: start;
}

.article-header {
  padding: 120px 28px 56px;
  background: var(--blue);
  color: var(--white);
}

.article-header h1 {
  max-width: 920px;
  margin: 20px 0 24px;
  font-size: 76px;
}

.article-body {
  padding: 74px 28px;
}

.article-content {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.85;
}

.article-content h2 {
  margin: 48px 0 14px;
  color: var(--blue);
  font-size: 34px;
  font-weight: 560;
  line-height: 1.16;
}

.article-content p,
.article-content li {
  color: var(--ink-soft);
}

.article-content ul {
  padding-left: 20px;
}

.article-panel {
  position: sticky;
  top: 92px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--blue-soft);
}

.article-panel h3 {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 18px;
}

.article-panel a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid rgba(4, 74, 179, 0.12);
  color: var(--ink-soft);
}

.search-panel {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  padding: 92px 28px 28px;
  background: rgba(4, 74, 179, 0.96);
  color: var(--white);
}

.search-panel.open {
  display: block;
}

.search-box {
  display: grid;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.search-row input {
  width: 100%;
  min-height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 0 16px;
  outline: none;
}

.search-row input::placeholder {
  color: rgba(255, 255, 255, 0.66);
}

.search-results {
  display: grid;
  gap: 10px;
}

.search-result {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.search-result strong {
  display: block;
  margin-bottom: 8px;
}

.search-result p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.cta {
  position: relative;
  display: grid;
  min-height: 560px;
  place-items: center;
  overflow: hidden;
  background: var(--white);
  color: var(--blue);
}

.cta-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.cta-lines path {
  fill: none;
  stroke: rgba(4, 74, 179, 0.28);
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cta-lines .pulse {
  stroke: var(--teal);
  stroke-width: 1.5;
  stroke-dasharray: 54 820;
  animation: routePulse 4.8s linear infinite;
}

.cta-content {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: start;
  gap: 22px;
  width: min(720px, calc(100% - 56px));
}

.cta h2 {
  margin: 0;
  font-size: 64px;
  font-weight: 540;
  line-height: 1;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 28px;
  background: var(--blue);
  color: rgba(255, 255, 255, 0.68);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

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

@keyframes markPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

@keyframes routePulse {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -874;
  }
}

@media (max-width: 1180px) {
  .hero-inner,
  .page-hero-inner,
  .section-grid,
  .section-heading,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 82px;
  }

  .story-grid,
  .track-grid,
  .track-grid.four,
  .resource-grid,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding: 14px 18px;
    background: var(--blue);
    color: var(--white);
  }

  .nav,
  .header-actions .button {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
  }

  .hero-inner,
  .section,
  .page-hero,
  .article-header,
  .article-body {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-inner {
    padding-top: 96px;
  }

  .hero h1 {
    font-size: 54px;
  }

  .section-heading h2,
  .page-hero h1,
  .article-header h1,
  .cta h2 {
    font-size: 42px;
  }

  .hero-summary,
  .story-grid,
  .track-grid,
  .track-grid.four,
  .resource-grid,
  .metric-grid,
  .list-row,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .console-item {
    grid-template-columns: 1fr;
  }

  .story-card,
  .track-card,
  .resource-card {
    min-height: auto;
  }

  .mobile-panel nav {
    font-size: 34px;
  }

  .search-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}