:root {
  color-scheme: light;
  --ink: #18211f;
  --muted: #5f6b67;
  --soft: #eef2ee;
  --paper: #fbfcfa;
  --panel: #ffffff;
  --line: #dce3de;
  --teal: #126b5a;
  --teal-soft: #dceee8;
  --rust: #a95320;
  --rust-soft: #f2e3d8;
  --violet: #5547a8;
  --violet-soft: #e8e5f6;
  --amber: #946700;
  --amber-soft: #f4ecd7;
  --code-bg: #14211e;
  --code-ink: #eff8f4;
  --shadow: 0 14px 38px rgba(29, 42, 38, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.72;
  letter-spacing: 0;
}

a {
  color: var(--teal);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

code,
pre,
kbd {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

code {
  padding: 0.12rem 0.32rem;
  border-radius: 5px;
  background: #e7ede9;
  color: #123b33;
  font-size: 0.92em;
}

pre {
  overflow: auto;
  padding: 1rem;
  border-radius: 8px;
  background: var(--code-bg);
  color: var(--code-ink);
  line-height: 1.55;
}

pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 252, 250, 0.96);
  backdrop-filter: blur(12px);
}

.nav-shell {
  width: min(1180px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.site-nav a {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 8px 11px;
  border-radius: 8px;
  color: #34413d;
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: var(--teal-soft);
  color: #0d584a;
}

.hero {
  position: relative;
  min-height: 520px;
  isolation: isolate;
  display: grid;
  align-items: end;
  background-image: url("assets/images/minimind-3v.gif");
  background-position: center;
  background-size: cover;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(10, 16, 14, 0.68);
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 86px 0 58px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 10px;
  color: #b8eadf;
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: 3.1rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero .lead,
.page-hero .lead {
  max-width: 800px;
  margin: 18px 0 0;
  color: #eef7f3;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
  background: #0e5a4c;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
}

.button.secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

.page-hero {
  background: #15221f;
  color: #fff;
}

.page-hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 48px;
}

.page-hero .lead {
  color: #dce9e4;
}

.layout {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 72px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 34px;
  align-items: start;
}

.article {
  min-width: 0;
}

.toc {
  position: sticky;
  top: 86px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.toc-title {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.toc a {
  display: block;
  padding: 6px 0;
  color: #40504b;
  font-size: 0.94rem;
}

.section {
  margin-top: 46px;
}

.section:first-child {
  margin-top: 0;
}

.section h2 {
  margin: 0 0 14px;
  font-size: 1.78rem;
  line-height: 1.22;
}

.section h3 {
  margin: 28px 0 10px;
  font-size: 1.24rem;
  line-height: 1.3;
}

.section p {
  margin: 0 0 14px;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.card h3,
.card h4 {
  margin-top: 0;
}

.fact-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.fact {
  padding: 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
}

.fact strong {
  display: block;
  font-size: 1.36rem;
  line-height: 1.2;
}

.fact span {
  color: #d9e6e1;
  font-size: 0.9rem;
}

.callout {
  margin: 22px 0;
  padding: 18px;
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  background: var(--teal-soft);
}

.callout.rust {
  border-color: var(--rust);
  background: var(--rust-soft);
}

.callout.violet {
  border-color: var(--violet);
  background: var(--violet-soft);
}

.callout.amber {
  border-color: var(--amber);
  background: var(--amber-soft);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #eff4f0;
  color: #24322e;
  font-weight: 800;
}

tr:last-child td {
  border-bottom: 0;
}

.media-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f4f6f4;
}

.media-frame img {
  width: 100%;
  height: auto;
}

.caption {
  margin: 0;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid var(--line);
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0;
}

.flow-step {
  min-height: 112px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.flow-step b {
  display: block;
  margin-bottom: 6px;
  color: var(--teal);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 14px 0;
  list-style: none;
}

.tag-list li {
  padding: 5px 9px;
  border-radius: 8px;
  background: #e9efeb;
  color: #30443e;
  font-size: 0.9rem;
  font-weight: 650;
}

.code-map {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 12px;
}

.code-map .path {
  padding: 12px;
  border-radius: 8px;
  background: #ecf2ee;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.code-map .detail {
  padding: 12px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--line);
}

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

.image-tile {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.image-tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.footer {
  border-top: 1px solid var(--line);
  background: #eef2ee;
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

  .grid.cols-3,
  .fact-row,
  .flow,
  .image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .nav-shell {
    width: min(100% - 20px, 1180px);
    gap: 12px;
  }

  .brand span {
    display: none;
  }

  .hero {
    min-height: 500px;
  }

  .hero-inner,
  .page-hero-inner,
  .layout,
  .footer-inner {
    width: min(100% - 24px, 1180px);
  }

  .hero h1,
  .page-hero h1 {
    font-size: 2.2rem;
  }

  .grid.cols-2,
  .grid.cols-3,
  .fact-row,
  .flow,
  .image-grid,
  .code-map {
    grid-template-columns: 1fr;
  }

  .site-nav a {
    padding-inline: 9px;
  }
}