:root {
  color-scheme: dark;
  --bg: #050507;
  --bg-soft: #0d0f14;
  --panel: rgba(17, 20, 28, 0.66);
  --panel-strong: rgba(22, 26, 34, 0.78);
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.24);
  --text: #f4f7fb;
  --muted: #aab3c2;
  --quiet: #707b8f;
  --cyan: #70e1ff;
  --mint: #91f7c7;
  --amber: #ffd38a;
  --rose: #ff89b5;
  --violet: #b8a3ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.46);
  --radius: 8px;
  --max: 1180px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(112, 225, 255, 0.12), transparent 28rem),
    radial-gradient(circle at 84% 12%, rgba(145, 247, 199, 0.09), transparent 30rem),
    radial-gradient(circle at 72% 74%, rgba(255, 137, 181, 0.08), transparent 27rem),
    linear-gradient(180deg, #050507 0%, #07090d 46%, #050507 100%);
  line-height: 1.65;
}

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

button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

::selection {
  color: #041014;
  background: var(--cyan);
}

#wafer-canvas {
  position: fixed;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 4px 4px, 6px 6px;
  mix-blend-mode: screen;
}

.cursor-glow {
  position: fixed;
  left: var(--cursor-x, 50%);
  top: var(--cursor-y, 28%);
  z-index: -1;
  width: 36rem;
  height: 36rem;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0.22;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(112, 225, 255, 0.46), rgba(145, 247, 199, 0.12) 38%, transparent 68%);
  filter: blur(24px);
}

.glass {
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px) saturate(140%);
}

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: flex;
  width: min(calc(100% - 32px), var(--max));
  height: 58px;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  border-radius: var(--radius);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  font-size: 0.96rem;
  font-weight: 720;
  white-space: nowrap;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 7px;
  background:
    linear-gradient(90deg, transparent 46%, rgba(255, 255, 255, 0.5) 47%, transparent 51%),
    linear-gradient(0deg, transparent 43%, rgba(255, 255, 255, 0.38) 44%, transparent 50%),
    linear-gradient(135deg, rgba(112, 225, 255, 0.82), rgba(145, 247, 199, 0.28));
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.1), 0 0 24px rgba(112, 225, 255, 0.24);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-header nav a {
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 180ms ease, background-color 180ms ease;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

main {
  position: relative;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 124px 0 96px;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 24px;
  left: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.24), transparent);
}

.hero-orbit {
  position: absolute;
  top: 18%;
  right: -7%;
  width: 440px;
  height: 440px;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  opacity: 0.6;
  transform: rotateX(64deg) rotateZ(-18deg);
}

.hero-orbit::before,
.hero-orbit::after {
  position: absolute;
  inset: 12%;
  content: "";
  border: 1px solid rgba(112, 225, 255, 0.2);
  border-radius: inherit;
}

.hero-orbit::after {
  inset: 28%;
  border-color: rgba(255, 211, 138, 0.22);
}

.hero-content {
  position: relative;
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.04;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: 5.8rem;
  font-weight: 780;
}

h2 {
  font-size: 2.72rem;
  font-weight: 760;
}

h3 {
  font-size: 1.22rem;
  font-weight: 720;
}

.hero-copy {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-weight: 720;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button.primary {
  color: #031016;
  border-color: rgba(112, 225, 255, 0.7);
  background: linear-gradient(135deg, var(--cyan), var(--mint));
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero-panel {
  align-self: end;
  padding: 18px;
  border-radius: var(--radius);
}

.hero-panel > div {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-panel > div:last-child {
  border-bottom: 0;
}

.metric {
  color: var(--text);
  font-size: 2.2rem;
  font-weight: 780;
  line-height: 1;
}

.label {
  color: var(--muted);
  font-size: 0.9rem;
}

.section {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 92px 0;
}

.section-heading {
  display: grid;
  max-width: 760px;
  gap: 15px;
  margin-bottom: 32px;
}

.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.flow-shell {
  overflow: hidden;
  border-radius: var(--radius);
}

.flow-track {
  display: grid;
  grid-template-columns: repeat(7, minmax(116px, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.flow-node {
  position: relative;
  min-height: 124px;
  padding: 18px 14px;
  border: 0;
  color: var(--muted);
  background: rgba(5, 5, 7, 0.58);
  cursor: pointer;
  text-align: left;
}

.flow-node::before {
  position: absolute;
  top: 18px;
  right: 14px;
  width: 9px;
  height: 9px;
  content: "";
  border-radius: 50%;
  background: var(--node-color);
  box-shadow: 0 0 18px var(--node-color);
}

.flow-node span {
  display: block;
}

.flow-node .step {
  color: var(--quiet);
  font-size: 0.72rem;
  font-weight: 740;
}

.flow-node .name {
  margin-top: 22px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 760;
}

.flow-node .hint {
  margin-top: 8px;
  font-size: 0.82rem;
  line-height: 1.45;
}

.flow-node:hover,
.flow-node:focus-visible,
.flow-node.is-active {
  z-index: 1;
  color: var(--text);
  outline: none;
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--node-color) 28%, transparent), transparent 56%),
    rgba(20, 24, 33, 0.9);
}

.flow-node.is-active {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--node-color) 50%, rgba(255, 255, 255, 0.14));
}

.flow-detail {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 26px;
  padding: 28px;
  background: rgba(5, 5, 7, 0.44);
}

.flow-summary {
  display: grid;
  align-content: start;
  gap: 18px;
}

.flow-summary p {
  margin: 0;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 3px 10px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.78rem;
}

.flow-articles {
  display: grid;
  gap: 12px;
}

.article-link {
  position: relative;
  width: 100%;
  min-height: 76px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--text);
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(112, 225, 255, 0.16), transparent 42%),
    rgba(255, 255, 255, 0.045);
  cursor: pointer;
  text-align: left;
  transition: border-color 180ms ease, transform 180ms ease, background-color 180ms ease;
}

.article-link:hover,
.article-link:focus-visible {
  border-color: rgba(112, 225, 255, 0.42);
  outline: none;
  transform: translateY(-2px);
}

.article-link strong,
.article-link small {
  display: block;
}

.article-link small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.project-rail {
  display: grid;
  grid-auto-columns: minmax(284px, 380px);
  grid-auto-flow: column;
  gap: 16px;
  overflow-x: auto;
  padding: 2px 4px 22px;
  scroll-snap-type: x proximity;
  scrollbar-color: rgba(255, 255, 255, 0.32) rgba(255, 255, 255, 0.08);
}

.project-card {
  position: relative;
  min-height: 316px;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 24%, transparent), transparent 48%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    rgba(10, 12, 18, 0.72);
  scroll-snap-align: start;
  transition: transform 200ms ease, border-color 200ms ease;
  backdrop-filter: blur(18px);
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--accent) 58%, rgba(255, 255, 255, 0.16));
  transform: translateY(-4px);
}

.project-card::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 42%, transparent), transparent),
    linear-gradient(0deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  opacity: 0.18;
  transform: translateX(-38%);
}

.project-card .kicker {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
}

.project-card h3 {
  margin-top: 54px;
  font-size: 1.45rem;
}

.project-card p {
  margin: 16px 0 0;
  color: var(--muted);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.reader-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 220px;
  gap: 16px;
  align-items: start;
}

.article-list,
.toc {
  position: sticky;
  top: 92px;
  max-height: calc(100svh - 112px);
  overflow: auto;
  border-radius: var(--radius);
  padding: 12px;
}

.article-list button,
.toc a {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  text-align: left;
}

.article-list button {
  min-height: 54px;
  padding: 10px 12px;
  cursor: pointer;
}

.article-list button:hover,
.article-list button:focus-visible,
.article-list button.is-active,
.toc a:hover,
.toc a:focus-visible {
  color: var(--text);
  outline: none;
  background: rgba(255, 255, 255, 0.07);
}

.article-list strong {
  display: block;
  font-size: 0.88rem;
}

.article-list span {
  display: block;
  margin-top: 3px;
  color: var(--quiet);
  font-size: 0.75rem;
}

.article-view {
  min-height: 680px;
  border-radius: var(--radius);
  padding: 42px;
}

.article-view header {
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.article-view .stage-label {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
}

.article-view h2 {
  margin-top: 10px;
  font-size: 2.32rem;
}

.article-view .lede {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.markdown {
  color: #dce4ef;
  font-size: 1.02rem;
}

.markdown h2,
.markdown h3 {
  scroll-margin-top: 110px;
}

.markdown h2 {
  margin-top: 38px;
  font-size: 1.64rem;
}

.markdown h3 {
  margin-top: 28px;
  font-size: 1.18rem;
}

.markdown p,
.markdown ul,
.markdown ol,
.markdown blockquote,
.markdown pre {
  margin: 18px 0 0;
}

.markdown ul,
.markdown ol {
  padding-left: 1.2rem;
}

.markdown li + li {
  margin-top: 8px;
}

.markdown code {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 0.08rem 0.34rem;
  color: var(--mint);
  background: rgba(255, 255, 255, 0.06);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.markdown pre {
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(2, 5, 8, 0.78);
}

.markdown pre code {
  border: 0;
  padding: 0;
  color: #d7f9ff;
  background: transparent;
}

.markdown blockquote {
  border-left: 3px solid var(--amber);
  padding: 10px 0 10px 16px;
  color: var(--muted);
  background: rgba(255, 211, 138, 0.06);
}

.toc {
  padding: 14px;
}

.toc-title {
  margin: 2px 0 12px;
  color: var(--quiet);
  font-size: 0.76rem;
  font-weight: 780;
  text-transform: uppercase;
}

.toc a {
  min-height: 34px;
  padding: 7px 9px;
  font-size: 0.82rem;
}

.toc a.depth-3 {
  padding-left: 20px;
  color: var(--quiet);
}

.signal-section {
  padding-bottom: 120px;
}

.signal-card {
  display: grid;
  gap: 16px;
  justify-items: start;
  max-width: 760px;
  border-radius: var(--radius);
  padding: 32px;
}

.signal-card p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .cursor-glow,
  #wafer-canvas {
    display: none;
  }
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    width: min(100%, 680px);
  }

  .flow-track {
    grid-template-columns: repeat(4, minmax(132px, 1fr));
  }

  .reader-layout {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .toc {
    position: static;
    grid-column: 1 / -1;
    max-height: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    height: auto;
    min-height: 56px;
    align-items: flex-start;
    padding: 12px;
    flex-direction: column;
    gap: 10px;
  }

  .site-header nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .site-header nav a {
    padding: 7px 4px;
    text-align: center;
    font-size: 0.78rem;
  }

  .hero {
    width: min(calc(100% - 24px), var(--max));
    min-height: auto;
    padding: 152px 0 72px;
  }

  h1 {
    font-size: 3.2rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-panel > div {
    grid-template-columns: 72px 1fr;
  }

  .section {
    width: min(calc(100% - 24px), var(--max));
    padding: 66px 0;
  }

  .flow-track {
    grid-template-columns: 1fr;
  }

  .flow-node {
    min-height: 92px;
  }

  .flow-node .name {
    margin-top: 10px;
  }

  .flow-detail {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .project-rail {
    grid-auto-columns: minmax(260px, 86vw);
  }

  .reader-layout {
    grid-template-columns: 1fr;
  }

  .article-list,
  .toc {
    position: static;
    max-height: none;
  }

  .article-view {
    min-height: auto;
    padding: 24px 18px;
  }

  .article-view h2 {
    font-size: 1.7rem;
  }
}