:root {
  color-scheme: dark;
  --bg: #080d15;
  --ink: #e7edf5;
  --muted: #94a2b5;
  --accent: #75eed1;
  --line: #22303e;
  --paper: #0e1621;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; color: var(--ink); font: 15px/1.8 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; overflow-wrap: anywhere; background: radial-gradient(ellipse at 84% 8%, #13302c44, transparent 36%); }
::selection { background: #75eed13b; color: #fff; }
a { color: var(--accent); text-underline-offset: .24em; transition: color .2s, background .2s, border-color .2s; }
a:hover { color: #c6fff2; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 3px; }
img { max-width: 100%; height: auto; }
h1, h2, h3, h4, h5, h6 { color: #f0f5fa; line-height: 1.45; }
.skip-link { position: absolute; top: -100px; left: 1rem; z-index: 10; background: var(--paper); padding: .6rem 1rem; }
.skip-link:focus { top: 1rem; }
.site-header { max-width: 1280px; margin: auto; padding: 25px 48px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }
.site-signature { display: flex; align-items: center; gap: 14px; color: #a4b1c1; font-size: 12px; letter-spacing: .16em; white-space: nowrap; }
.code-mark { color: var(--accent); font: 700 22px/1 var(--mono); letter-spacing: -.1em; }
.site-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.site-nav a { padding: 6px 12px; font-size: 13px; text-decoration: none; color: #a0aebf; position: relative; }
.site-nav a[aria-current], .site-nav a:hover { color: var(--accent); }
.site-nav a[aria-current]::after { content: ""; position: absolute; bottom: -26px; height: 2px; background: var(--accent); left: 12px; right: 12px; box-shadow: 0 0 12px #75eed166; }
.site-nav a:last-child { margin-left: 16px; border-left: 1px solid var(--line); padding-left: 24px; }
main { max-width: 1000px; margin: 0 auto; padding: 30px 48px 80px; min-height: calc(100vh - 200px); }
.home-page main { max-width: 1280px; padding-top: 0; }
.eyebrow { font: 10px/1.6 var(--mono); letter-spacing: .18em; color: var(--accent); margin: 0 0 16px; }
.hero { display: grid; grid-template-columns: 1.15fr 1fr; align-items: center; gap: 28px; padding: 64px 0 54px; position: relative; border-bottom: 1px solid var(--line); }
.hero-copy { position: relative; z-index: 1; }
.hero .eyebrow { display: flex; align-items: center; gap: 10px; }
.hero .eyebrow > span { width: 6px; height: 6px; background: var(--accent); box-shadow: 0 0 14px #75eed177; }
.hero h1 { font-size: clamp(36px, 3.7vw, 51px); letter-spacing: -.045em; line-height: 1.4; margin: 22px 0; font-weight: 750; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-description { color: var(--muted); font-size: 13px; line-height: 2; margin: 0; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin: 30px 0; font-size: 13px; }
.hero-actions a { text-decoration: none; display: inline-flex; align-items: center; gap: 25px; }
.button-primary { background: var(--accent); color: #081b19; padding: 11px 19px; font-weight: 650; border: 1px solid var(--accent); border-radius: 3px; }
.button-primary:hover { color: #081b19; background: #a4ffe8; box-shadow: 0 0 25px #75eed11a; }
.button-text { color: #b6c1cf; }
.hero-topics { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; font: 10px/1.7 var(--mono); color: #94a2b5; }
.hero-topics span:first-child { font-family: inherit; border-right: 1px solid #344150; padding-right: 16px; }
.system-visual { min-width: 0; position: relative; height: 360px; background-image: linear-gradient(#78b3b008 1px, transparent 1px), linear-gradient(90deg, #78b3b008 1px, transparent 1px); background-size: 28px 28px; mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); }
.orbit-diagram { position: absolute; width: 100%; height: 100%; inset: 0; }
.visual-caption, .visual-footer { position: absolute; left: 28px; right: 28px; display: flex; justify-content: space-between; align-items: center; color: #91aab7; font: 9px/1.5 var(--mono); letter-spacing: .13em; }
.visual-caption { top: 4px; }
.visual-footer { bottom: 4px; justify-content: flex-start; gap: 13px; font-size: 10px; }
.crosshair { margin-left: auto; font-size: 22px; color: var(--accent); }
.orbit-label { position: absolute; background: #0d1721e8; border: 1px solid #314550; border-radius: 3px; padding: 6px 11px; color: #d1e4e9; font: 10px/1.5 var(--mono); letter-spacing: .12em; box-shadow: 0 8px 24px #0003; }
.orbit-label i { color: var(--accent); font-size: 9px; font-style: normal; margin-right: 8px; }
.label-build { top: 50px; left: 51%; }
.label-debug { top: 222px; left: 6%; }
.label-ship { top: 238px; right: 5%; }
.signal-bars { display: flex; align-items: end; gap: 3px; height: 13px; }
.signal-bars i { width: 3px; background: var(--accent); height: 40%; }
.signal-bars i:nth-child(2) { height: 70%; }.signal-bars i:nth-child(3) { height: 100%; }.signal-bars i:nth-child(4) { height: 65%; }.signal-bars i:nth-child(5) { height: 85%; }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 272px; gap: 56px; padding-top: 42px; }
.journal-feed { min-width: 0; scroll-margin-top: 28px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.section-heading .eyebrow { margin: 0 0 7px; }
.section-heading h2 { margin: 0; font-size: 22px; letter-spacing: -.04em; }
.section-heading h2 span { font-size: 11px; color: var(--muted); font-weight: 400; margin-left: 12px; letter-spacing: .08em; }
.section-index { color: var(--muted); font: 10px/1.5 var(--mono); padding-bottom: 5px; }
.page-heading { padding: 36px 0; border-bottom: 1px solid var(--line); margin-bottom: 32px; position: relative; }
.page-heading::after { content: ""; position: absolute; bottom: -1px; left: 0; width: 48px; height: 2px; background: var(--accent); }
.page-heading p { color: var(--accent); font-size: 12px; letter-spacing: .15em; margin: 0 0 12px; }
.page-heading h1 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.03em; margin: 0; }
.post-list { list-style: none; padding: 0; margin: 0; counter-reset: entries; }
.post-list-item { counter-increment: entries; min-width: 0; }
.article-card, .post-card { background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 28px 32px; min-width: 0; }
.post-list .article-card { position: relative; padding: 27px 0 27px 43px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: none; transition: background .2s; }
.post-list .article-card::before { content: counter(entries, decimal-leading-zero); position: absolute; top: 30px; left: 0; font: 11px/1.7 var(--mono); color: #8495a9; }
.post-list .article-card:hover { background: linear-gradient(90deg, transparent, #75eed105); }
.post-list .article-card:hover::before { color: var(--accent); }
.post-meta, .post-updated { color: var(--muted); font: 11px/1.8 var(--mono); }
.post-meta { display: flex; align-items: center; gap: 8px; }
.post-meta::before { content: ""; height: 5px; width: 5px; background: #75928f; display: inline-block; }
.post-title { font-size: 21px; margin: 9px 0 12px; letter-spacing: -.02em; }
.post-title a { color: var(--ink); text-decoration: none; }
.post-title a:hover { color: var(--accent); }
.post-list .post-content { color: var(--muted); font-size: 13px; }
.post-list .post-content > p { margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-list .post-list-item:first-child .post-title { font-size: 27px; }
.post-list .post-list-item:first-child .post-meta { color: var(--accent); }
.post-list .post-list-item:first-child .post-meta::before { background: var(--accent); }
.post-more { display: inline-block; margin-top: 14px; font-size: 11px; text-decoration: none; color: #a6c7c2; }
.article-tag-list { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.article-tag-list a, .tag-nav a { display: inline-block; padding: 3px 11px; border: 1px solid var(--line); border-radius: 3px; background: #111e28; font: 11px/1.8 var(--mono); text-decoration: none; }
.article-tag-list a:hover, .tag-nav a:hover { border-color: #5b9c91; }
.tag-nav { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.tag-nav a { padding: 10px 16px; }
.tag-nav span { color: var(--muted); margin-left: 10px; }
.explore-rail { min-width: 0; }
.rail-section { border-left: 1px solid var(--line); padding-left: 25px; }
.rail-section .eyebrow { color: var(--muted); margin: 0 0 10px; }
.rail-section h2 { font-size: 19px; margin: 0; }
.rail-description { color: var(--muted); font-size: 11px; margin: 8px 0 21px; }
.topic-links { display: flex; flex-direction: column; }
.topic-links a { display: flex; align-items: center; gap: 14px; color: #d8e3eb; text-decoration: none; padding: 15px 0; border-top: 1px solid var(--line); font: 13px/1.6 var(--mono); }
.topic-links small { display: block; font: 10px/1.8 system-ui, sans-serif; color: var(--muted); margin-top: 3px; }
.topic-symbol { display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 22px; width: 31px; }
.topic-arrow { margin-left: auto; color: #8a9dad; }
.topic-links a:hover, .topic-links a:hover .topic-arrow { color: var(--accent); }
.archive-note { margin: 34px 0 22px 25px; padding: 23px 21px; position: relative; overflow: hidden; background: linear-gradient(140deg, #14302c, #101b27 80%); border: 1px solid #29433f; border-radius: 4px; }
.archive-note .eyebrow { font-size: 9px; position: relative; z-index: 1; }
.archive-note h3 { margin: 15px 0 10px; font-size: 20px; line-height: 1.6; position: relative; z-index: 1; }
.archive-note p { color: #a4b9ba; font-size: 11px; position: relative; z-index: 1; }
.archive-note a { position: relative; z-index: 1; display: flex; justify-content: space-between; font-size: 11px; text-decoration: none; margin-top: 25px; }
.archive-decoration { position: absolute; right: -10px; top: 58px; color: #75eed10b; font: 120px/1 var(--mono); }
.rail-footnote { padding-left: 25px; font: 8px/2 var(--mono); letter-spacing: .07em; color: var(--muted); }
.rail-footnote span { color: var(--accent); font-size: 19px; vertical-align: middle; margin-right: 6px; }
.archive-separator { font: 600 17px/1.8 var(--mono); color: var(--accent); margin: 34px 0 18px; }
.waterfall { display: grid; gap: 0; border-left: 1px solid #33524f; margin-left: 5px; padding-left: 26px; }
.archive-article { padding: 20px 24px; position: relative; margin-bottom: 12px; }
.archive-article::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); position: absolute; left: -31px; top: 29px; box-shadow: 0 0 0 5px var(--bg); }
.archive-article .post-title { margin-bottom: 0; font-size: 19px; }
#page-nav .inner { display: flex; justify-content: flex-start; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
#page-nav a, #page-nav span { padding: 6px 14px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); text-decoration: none; font-size: 12px; }
#page-nav .current { color: #082019; background: var(--accent); border-color: var(--accent); }
.toc { margin: 0 0 24px; padding: 15px 22px; background: #11231f; border: 1px solid #29463e; border-radius: 4px; }
.toc summary { cursor: pointer; color: var(--accent); font-size: 13px; }
.toc ul { margin-bottom: 0; padding-left: 22px; font-size: 13px; }
.post-article .post-content { margin-top: 28px; color: #b8c5d4; }
.post-content h2 { font-size: 25px; margin: 40px 0 18px; }
.post-content h3 { font-size: 21px; margin: 28px 0 14px; }
.post-content h4 { font-size: 18px; margin: 24px 0 12px; }
.post-content :is(h2, h3, h4, h5, h6) { scroll-margin-top: 24px; }
.post-content p { margin: 14px 0; }
.post-content ul, .post-content ol { padding-left: 24px; }
.post-content li + li { margin-top: 6px; }
.post-content strong { color: #e4eaf2; }
blockquote { margin: 20px 0; padding: 2px 18px; border-left: 2px solid #5ea997; background: #15251f; color: #b0c7c0; }
figure { margin: 22px 0; }
pre, code { font-family: var(--mono); font-size: 12px; }
code { background: #1c2b35; color: #a7e6d8; padding: 2px 5px; border-radius: 3px; }
pre { padding: 18px; overflow-x: auto; line-height: 1.8; background: #080f19; color: #c2d5e8; border-radius: 4px; }
pre code { background: transparent; color: inherit; padding: 0; }
.highlight { max-width: 100%; overflow-x: auto; border: 1px solid #263443; border-radius: 4px; background: #080f19; color: #c2d5e8; }
.highlight table { margin: 0; width: 100%; border-collapse: collapse; }
.highlight td { border: 0; padding: 0; }
.highlight pre { margin: 0; border-radius: 0; overflow: visible; }
.highlight .gutter { width: 1%; color: #738799; user-select: none; }
.highlight .gutter pre { padding-right: 0; }
.highlight .code { background: none; }
.highlight .comment { color: #91a0ad; }.highlight .string { color: #86d9af; }.highlight .keyword, .highlight .literal { color: #b9b1ee; }.highlight .number { color: #e5c48a; }
.post-content > table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 20px 0; }
.post-content > table :is(th, td) { border: 1px solid var(--line); padding: 8px 12px; }
.post-content > table th { background: #182731; }
.image-bubble { text-align: center; }.image-caption { color: var(--muted); font-size: 12px; }
.post-updated { border-top: 1px solid var(--line); padding-top: 20px; margin-top: 32px; }
.post-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 24px; }
.post-nav > div { flex: 1; min-width: 0; }
.post-nav a { display: block; height: 100%; padding: 18px 24px; border: 1px solid var(--line); border-radius: 4px; background: var(--paper); text-decoration: none; }
.post-nav a:hover { border-color: #4c8077; }.post-nav .tips { color: var(--muted); font-size: 12px; }.post-nav h4 { margin: 6px 0 0; font-weight: 500; }
.site-footer { max-width: 1184px; margin: auto; padding: 24px 0 36px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 11px; }
.site-footer p { margin: 0; }.site-footer a { color: #a4b6c5; text-decoration: none; }.site-footer a:hover { color: var(--accent); }
@media (min-width: 1440px) { .hero { padding-top: 80px; padding-bottom: 70px; } }
@media (max-width: 1100px) {
  .site-header { padding-inline: 32px; }.site-footer { margin-inline: 32px; }
  main { padding-inline: 32px; }.content-layout { gap: 32px; grid-template-columns: minmax(0, 1fr) 240px; }
  .hero { gap: 8px; }.hero h1 { font-size: 38px; }.hero-description { font-size: 12px; }.hero-topics { gap: 10px; font-size: 9px; }
  .system-visual { height: 320px; }.label-debug { top: 204px; }.label-ship { top: 220px; }
  .rail-section { padding-left: 20px; }.archive-note { margin-left: 20px; padding: 20px 16px; }.rail-footnote { padding-left: 20px; font-size: 7px; }
}
@media (max-width: 800px) {
  .site-signature > span:last-child { display: none; }.site-nav a:last-child { margin-left: 5px; padding-left: 15px; }
  .hero { grid-template-columns: minmax(0, 1fr) 40%; padding: 48px 0 40px; }.hero h1 { font-size: 34px; }.hero-description br { display: none; }
  .hero-actions { gap: 18px; }.hero-actions a { gap: 15px; }.hero-topics { gap: 8px; }
  .system-visual { height: 290px; }.visual-caption { font-size: 7px; left: 12px; right: 12px; }.visual-caption span:last-child { display: none; }
  .orbit-label { font-size: 8px; padding: 4px 6px; }.label-build { top: 69px; left: 42%; }.label-debug { top: 188px; left: 0; }.label-ship { top: 211px; right: 0; }.visual-footer { font-size: 8px; left: 12px; right: 12px; }
  .content-layout { grid-template-columns: minmax(0, 1fr); gap: 42px; }.explore-rail { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 24px; }
  .rail-section { padding-left: 0; border: 0; }.archive-note { margin: 0; }.rail-footnote { padding: 0; grid-column: 1 / -1; font-size: 9px; }
}
@media (max-width: 560px) {
  .site-header { padding: 19px 20px; gap: 14px; }.code-mark { font-size: 20px; }.site-nav { gap: 2px; }.site-nav a { font-size: 11px; padding: 5px 8px; }.site-nav a:last-child { padding-left: 10px; margin-left: 3px; }.site-nav a[aria-current]::after { bottom: -20px; left: 8px; right: 8px; }
  main { padding: 18px 20px 48px; }.hero { grid-template-columns: 1fr; gap: 12px; padding: 38px 0 30px; }.hero h1 { font-size: clamp(30px, 8.4vw, 43px); margin: 18px 0; }.eyebrow { font-size: 9px; }.hero-description { font-size: 12px; }
  .hero-actions { margin: 24px 0; font-size: 12px; gap: 24px; }.hero-topics { gap: 12px; font-size: 9px; }.hero-topics span:first-child { padding-right: 12px; }
  .system-visual { height: 235px; margin-top: 12px; }.visual-caption { top: 0; font-size: 8px; }.visual-caption span:last-child { display: inline; }.visual-footer { font-size: 8px; bottom: 0; }.orbit-label { font-size: 9px; }.label-build { top: 35px; left: 55%; }.label-debug { top: 147px; left: 8%; }.label-ship { top: 159px; right: 6%; }
  .content-layout { padding-top: 30px; }.section-heading { padding-bottom: 20px; }.section-heading h2 { font-size: 21px; }.section-heading h2 span { font-size: 10px; margin-left: 8px; }
  .post-list .article-card { padding: 23px 0 23px 30px; }.post-list .article-card::before { top: 25px; font-size: 10px; }.post-title { font-size: 19px; }.post-list .post-list-item:first-child .post-title { font-size: 23px; }
  .page-heading { padding: 24px 0; margin-bottom: 24px; }.page-heading h1 { font-size: 29px; }.article-card, .post-card { padding: 22px 18px; }.post-content h2 { font-size: 23px; }.post-nav { flex-direction: column; gap: 12px; }
  .explore-rail { grid-template-columns: 1fr; gap: 28px; }.archive-note { padding: 24px; }.archive-note h3 br { display: none; }.archive-note h3 { font-size: 19px; }
  .waterfall { padding-left: 20px; }.archive-article::before { left: -25px; }.archive-article .post-title { font-size: 18px; }.site-footer { margin: 0 20px; flex-direction: column; gap: 10px; padding-bottom: 25px; }
}
@media (max-width: 360px) { .site-header { gap: 7px; padding-inline: 16px; }.site-nav a { padding-inline: 6px; }.hero-topics { gap: 8px; }.section-heading h2 span { display: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
@media print {
  :root { color-scheme: light; --ink: #111; --muted: #444; --accent: #124b45; --line: #ccc; --paper: #fff; --bg: #fff; }
  html, body { background: white; color: black; }.site-header, .skip-link, .toc, .post-nav, #page-nav, .site-footer > a, .system-visual, .explore-rail, .hero-actions, .hero-topics { display: none; }
  main, .home-page main { max-width: none; padding: 0; }.content-layout, .hero { display: block; }.hero { padding: 15px 0; } .article-card, .post-card { border: 0; padding: 0; }
  h1, h2, h3, h4, h5, h6, .post-article .post-content, .post-content strong, .hero h1 em { color: black; }
  pre, .highlight, code, blockquote { background: #f4f4f4; color: black; } pre, .highlight { white-space: pre-wrap; overflow-wrap: anywhere; }
  a, .post-title a, .post-more, .hero-description, .post-list .post-content { color: inherit; }.site-footer { margin: 24px 0 0; }
}