/* Xiaomai weekly research notes (v3). Dark lab palette from the main site:
   night ground, cyan instruments, amber for notices. No scripts, no web fonts. */
:root{
  color-scheme:dark;
  --night:#040e14;--ground:#061a24;--surface:#0b2230;--surface-2:#0f2a3a;--inset:#03111a;
  --rule:#1f3b4a;--rule-strong:#365461;--edge:rgba(138,192,212,.20);
  --ink:#edf4f5;--body:#c9d8e0;--muted:#a3b8c3;--faint:#7c95a2;
  --cyan:#adf1fc;--cyan-2:#7fd6e8;--blue:#88bfe7;--amber:#edb481;
  --pass:#74d6a8;--fail:#ff9a94;
  --sans:"PingFang TC","Noto Sans TC","Noto Sans CJK TC","Microsoft JhengHei","Heiti TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --latin:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --read:680px;--wide:1044px;--rail:320px;--gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--night);background-image:radial-gradient(1100px 520px at 50% -180px,rgba(80,170,200,.16),transparent 70%);background-repeat:no-repeat;color:var(--body);font:400 17px/1.85 var(--sans);letter-spacing:.01em}
body.lang-en{font-family:var(--latin);letter-spacing:0;line-height:1.7}
main{flex:1 0 auto}
a{color:var(--cyan);text-decoration-thickness:1px;text-underline-offset:.22em}
a:hover{color:#fff}
a:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
h1,h2,h3{color:var(--ink);margin:0;line-height:1.35}
p{margin:0}
code{font-family:var(--mono);font-size:.86em;background:rgba(173,241,252,.08);border:1px solid rgba(173,241,252,.14);border-radius:4px;padding:.05em .35em;color:var(--ink);overflow-wrap:anywhere}
.skip-link{position:absolute;left:12px;top:-60px;background:var(--cyan);color:var(--night);padding:8px 14px;border-radius:6px;z-index:10;font-weight:700}
.skip-link:focus{top:12px}

/* ---- site bar & footer ---- */
/* Same header as the home page (v3.12.0): brand, note, five links, square menu and language buttons. */
.site-bar{display:flex;align-items:center;gap:28px;height:78px;padding-inline:3.3%;border-bottom:1px solid #26363e;background:var(--night);color:#eff4f4}
.brand{color:#eff4f4;text-decoration:none;font-weight:900;font-size:26px;letter-spacing:0;white-space:nowrap;line-height:1}
.brand small{font-size:15px;font-weight:900;margin-left:10px;letter-spacing:0}
.lang-en .brand{font-size:24px}
.header-note{flex:auto;min-width:0;color:#a5b7c1;font-size:12px;line-height:1.4}
.site-bar nav{flex:none;display:flex;align-items:center;gap:30px;margin-inline-start:auto;font-size:14px;font-weight:550}
.site-bar nav a{color:#eff4f4;text-decoration:none}
.site-bar nav a:hover{color:#acd5e7}
.site-bar nav a[aria-current]{color:#acd5e7;text-decoration:underline;text-underline-offset:.45em;text-decoration-thickness:1px}
.site-bar .language-switch{display:inline-flex;align-items:center;justify-content:center;min-width:68px;min-height:44px;padding:8px 12px;border:1px solid #718997;border-radius:0;font:600 14px/1.2 var(--latin);text-decoration:none}
.lang-en .site-bar .language-switch{font-family:var(--sans)}
.site-foot{border-top:1px solid var(--rule);padding:28px max(var(--gutter),calc((100% - 1120px)/2));display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;font-size:14px;color:var(--faint)}
.site-foot p{display:flex;gap:20px;flex-wrap:wrap}
.site-foot a{color:var(--muted);text-decoration:none}
.site-foot a:hover{color:var(--ink)}

/* ---- shared kicker / lede ---- */
.kicker{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font:500 13px/1.4 var(--mono);color:var(--muted);letter-spacing:.02em}
.kicker>span+span::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--rule-strong);vertical-align:middle;margin-right:14px;transform:translateY(-1px)}
.kicker a{color:var(--muted)}
.issue-no{color:var(--night);background:var(--cyan);border-radius:999px;padding:3px 10px;font-weight:700;letter-spacing:.04em}
.issue-no+span::before{display:none!important}
.lede{font-size:19px;line-height:1.85;color:var(--body)}
.lang-en .lede{line-height:1.65}
.clause{display:inline-block}

/* ---- article header ---- */
.article-head,.index-head{max-width:calc(var(--read) + 2*var(--gutter));margin:0 auto;padding:56px var(--gutter) 0}
.article-head{max-width:calc(var(--wide) + 2*var(--gutter))}
.article-head>*{max-width:var(--read)}
.article-head h1,.index-head h1{font-size:40px;font-weight:800;letter-spacing:.01em;margin:18px 0 20px;text-wrap:balance}
.lang-en .article-head h1,.lang-en .index-head h1{letter-spacing:-.01em;line-height:1.2}
.byline{display:grid;grid-template-columns:auto 1fr;column-gap:14px;row-gap:2px;align-items:center;margin-top:28px;padding-top:22px;border-top:1px solid var(--rule)}
.avatar{grid-row:span 2;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:18px;color:var(--ink);background:radial-gradient(circle at 30% 25%,#1e4a5e,#0b2230);box-shadow:inset 0 0 0 1px rgba(173,241,252,.45),0 0 18px rgba(127,214,232,.18)}
.byline-name{color:var(--ink);font-weight:700;margin-right:10px}
.byline-role{color:var(--muted);font-size:14px}
.byline-meta{display:flex;flex-wrap:wrap;gap:2px 16px;font-size:13px;color:var(--faint);line-height:1.6}

.version-line{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin-top:14px;font-size:14px;color:var(--body)}
.version-label{font:600 12px/1.6 var(--mono);color:var(--cyan-2);letter-spacing:.04em}
.card-notice{display:inline-block;margin-top:12px;padding:3px 10px;border:1px solid rgba(237,180,129,.45);border-radius:6px;color:var(--amber);font-size:13px;font-weight:700;background:rgba(237,180,129,.08)}

/* ---- hero figure: one real result, drawn ---- */
.hero-figure{max-width:calc(var(--wide) + 2*var(--gutter));margin:40px auto 0;padding:0 var(--gutter)}
.fig-panel{position:relative;overflow:hidden;border:1px solid var(--edge);border-radius:16px;padding:26px 28px 30px;background:linear-gradient(180deg,rgba(15,42,58,.92),rgba(6,26,36,.96));box-shadow:0 30px 80px -40px rgba(0,0,0,.8),inset 0 1px 0 rgba(173,241,252,.08)}
.fig-panel::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(173,241,252,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(173,241,252,.05) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 80%);pointer-events:none}
.fig-panel>*{position:relative}
.fig-title{font:600 13px/1.5 var(--mono);color:var(--cyan-2);letter-spacing:.04em}
.fig-diagram{max-width:720px;margin:22px auto 0}
.fig-origin{display:flex;justify-content:center;position:relative;padding-bottom:30px}
.fig-origin span{position:relative;z-index:1;border:1px solid rgba(173,241,252,.55);background:var(--inset);color:var(--ink);border-radius:999px;padding:6px 18px;font-size:15px;font-weight:600;box-shadow:0 0 22px rgba(127,214,232,.22)}
.fig-origin::before{content:"";position:absolute;left:50%;top:50%;bottom:0;border-left:1px solid rgba(173,241,252,.45)}
.fig-origin::after{content:"";position:absolute;left:calc(25% - 14px);right:calc(25% - 14px);bottom:0;border-top:1px solid rgba(173,241,252,.45)}
.fig-compare{display:grid;grid-template-columns:1fr 56px 1fr;align-items:stretch}
.fig-side{position:relative;border:1px solid var(--rule-strong);background:rgba(3,17,26,.85);border-radius:12px;padding:18px 20px 20px;text-align:center}
.fig-side::before{content:"";position:absolute;left:50%;top:-13px;height:12px;border-left:1px solid rgba(173,241,252,.45)}
.fig-label{font:600 12px/1.4 var(--mono);color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.fig-value{font:700 38px/1.15 var(--mono);color:var(--cyan);margin:10px 0 6px;font-variant-numeric:tabular-nums;text-shadow:0 0 24px rgba(173,241,252,.35);letter-spacing:-.01em}
.fig-unit{display:block;font:500 14px/1.4 var(--sans);color:var(--body);letter-spacing:.02em;text-shadow:none;margin-top:4px}
.lang-en .fig-unit{font-family:var(--latin)}
.fig-detail{font-size:13px;color:var(--faint);word-break:keep-all}
.fig-eq{display:grid;place-items:center;font:700 30px/1 var(--mono);color:var(--amber)}
.fig-verdict{display:flex;align-items:center;justify-content:center;gap:10px;margin:24px auto 0;width:max-content;max-width:100%;padding:12px 24px;border-radius:999px;border:1px solid rgba(116,214,168,.55);background:rgba(116,214,168,.12);color:var(--pass);font-weight:800;font-size:20px;box-shadow:0 0 28px rgba(116,214,168,.18)}
.fig-verdict svg{width:20px;height:20px;stroke:currentColor;flex:none}
.hero-figure figcaption{max-width:var(--read);margin:14px 0 0;font-size:14px;line-height:1.75;color:var(--muted)}

/* ---- body grid ---- */
.article-grid{max-width:calc(var(--wide) + 2*var(--gutter));margin:0 auto;padding:8px var(--gutter) 72px;display:grid;grid-template-columns:minmax(0,var(--read)) var(--rail);grid-template-areas:"main rail" "more rail";column-gap:calc(var(--wide) - var(--read) - var(--rail));justify-content:space-between}
.article-main{grid-area:main}
.article-rail{grid-area:rail;align-self:start;margin-top:48px;display:grid;gap:20px}
.article-more{grid-area:more}

/* Native article contents: expanded on desktop, initially collapsed on phones. */
.update-toc{margin:28px 0 0;border:1px solid var(--rule);border-radius:12px;background:rgba(11,34,48,.5)}
.update-contents{padding:14px 18px}
.update-contents summary{cursor:pointer;color:var(--ink);font-size:15px;font-weight:700}
.update-contents ol{margin:12px 0 0;padding-left:20px;font-size:15px;line-height:1.9}
.update-contents a{display:inline-block;max-width:100%;overflow-wrap:anywhere}
.update-contents--mobile{display:none}

/* ---- prose ---- */
.prose{margin-top:48px}
.prose h2{font-size:24px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:12px}
.prose h2::before{content:"";width:18px;height:2px;background:var(--cyan);box-shadow:0 0 10px rgba(173,241,252,.6);flex:none}
.prose p,.prose ul{margin:0 0 18px}
.prose strong{color:var(--ink)}
.prose ul{padding:0;list-style:none}
.prose li{position:relative;padding-left:22px;margin:0 0 12px}
.prose li::before{content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;background:var(--cyan-2);transform:rotate(45deg)}
.lang-en .prose li::before{top:.68em}
.exhibit{margin:22px 0 24px;border:1px solid var(--rule-strong);border-radius:12px;background:var(--inset);overflow:hidden}
.exhibit pre{margin:0;padding:16px 20px;overflow-x:auto;font:14px/1.9 var(--mono);color:var(--body)}
.exhibit code{background:none;border:0;padding:0;font-size:inherit;color:inherit;overflow-wrap:normal}
.exhibit .ln{display:block;white-space:pre-wrap;overflow-wrap:anywhere}
.exhibit .ln-bad{color:var(--fail)}
.exhibit .ln-ok{color:var(--pass)}
.exhibit figcaption{padding:10px 20px;border-top:1px solid var(--rule);font-size:13px;line-height:1.7;color:var(--muted);background:rgba(11,34,48,.6)}

/* ---- rail: notice & roadmap ---- */
.notice{border:1px solid rgba(237,180,129,.38);background:linear-gradient(180deg,rgba(237,180,129,.10),rgba(237,180,129,.04));border-radius:14px;padding:18px 20px}
.notice h2{display:flex;align-items:center;gap:8px;font-size:16px;color:var(--amber);margin-bottom:8px}
.notice h2 svg{width:16px;height:16px;fill:currentColor;flex:none}
.notice p{font-size:15px;line-height:1.8}
.lang-en .notice p{line-height:1.6}
.roadmap{border:1px solid var(--edge);background:var(--surface);border-radius:14px;padding:20px 20px 8px}
.roadmap h2{font-size:17px;font-weight:800}
.roadmap-note{font-size:13px;line-height:1.6;color:var(--faint);margin:4px 0 16px}
.roadmap ol{list-style:none;margin:0;padding:0}
.step{position:relative;display:grid;grid-template-columns:30px 1fr;gap:12px;padding-bottom:18px}
.step:not(:last-child)::before{content:"";position:absolute;left:14px;top:30px;bottom:2px;border-left:1px solid var(--rule-strong)}
.step-num{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font:700 11px/1 var(--mono);border:1px solid var(--rule-strong);color:var(--muted);background:var(--inset)}
.step-name{color:var(--ink);font-size:15px;font-weight:700;line-height:1.5}
.step-status{margin:6px 0 4px}
.step-note{font-size:13.5px;line-height:1.65;color:var(--muted)}
.chip{display:inline-block;font-size:12px;font-weight:700;line-height:1;padding:5px 9px;border-radius:999px;border:1px solid currentColor}
.chip-done{color:var(--pass);background:rgba(116,214,168,.10)}
.chip-partial{color:var(--cyan);background:rgba(173,241,252,.08)}
.chip-active{color:var(--blue);background:rgba(136,191,231,.10)}
.chip-failed{color:var(--fail);background:rgba(255,154,148,.10)}
.chip-todo{color:var(--faint);border-style:dashed}
.step-done .step-num{border-color:var(--pass);color:var(--pass)}
.step-partial .step-num{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 12px rgba(173,241,252,.35)}
.step-active .step-num{border-color:var(--blue);color:var(--blue)}
.step-failed .step-num{border-color:var(--fail);color:var(--fail)}
.step-todo .step-num{border-style:dashed}

/* ---- call to action ---- */
.cta{margin-top:48px;border:1px solid rgba(173,241,252,.28);border-radius:16px;padding:22px 24px;background:radial-gradient(600px 160px at 0 0,rgba(127,214,232,.12),transparent 70%),var(--surface)}
.cta-line{color:var(--ink);font-weight:700;font-size:18px;margin-bottom:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.button{display:inline-flex;flex-direction:column;justify-content:center;gap:2px;min-height:48px;padding:9px 18px;border-radius:12px;background:var(--cyan);color:var(--night);font-weight:800;text-decoration:none;line-height:1.3}
.button:hover{background:#d2f8fe;color:var(--night)}
.button-sub{font:500 12px/1.2 var(--mono);opacity:.75}
.button-quiet{flex-direction:row;align-items:center;gap:8px;background:transparent;color:var(--ink);border:1px solid var(--rule-strong);font-weight:600}
.button-quiet:hover{background:rgba(173,241,252,.06);color:#fff}
.arrow{width:16px;height:16px;stroke:currentColor;flex:none}

/* ---- technical record ---- */
.tech{margin-top:32px;border:1px solid var(--rule-strong);border-radius:14px;background:rgba(11,34,48,.55)}
.tech summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:1fr auto;column-gap:16px;padding:18px 22px}
.tech summary::-webkit-details-marker{display:none}
.tech summary::after{content:"";grid-row:1/span 2;grid-column:2;align-self:center;width:10px;height:10px;border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s}
.tech[open] summary::after{transform:rotate(-135deg) translate(-2px,-2px)}
.tech-title{color:var(--ink);font-weight:800;font-size:17px}
.tech-hint{color:var(--faint);font-size:14px;line-height:1.5}
.tech-body{padding:4px 22px 22px;border-top:1px solid var(--rule);font-size:15px;line-height:1.8}
.lang-en .tech-body{line-height:1.65}
.tech-section{margin-top:22px}
.tech-section h3{font-size:15px;color:var(--cyan-2);margin-bottom:10px;letter-spacing:.02em}
.tech-section p,.tech-section ul{margin:0 0 12px}
.tech-section ul{padding-left:20px}
.tech-section li{margin-bottom:8px}
.tech-section li::marker{color:var(--faint)}
.daily{list-style:none;margin:0;padding:0;border:1px solid var(--rule);border-radius:10px;overflow:hidden}
.daily li{display:grid;grid-template-columns:48px 16px 76px 1fr auto;align-items:center;gap:10px;padding:8px 14px;font-size:14px;line-height:1.5;border-top:1px solid var(--rule)}
.daily li:first-child{border-top:0}
.daily time,.daily-ref{font-family:var(--mono);font-size:12.5px;color:var(--faint)}
.daily-ref{color:var(--muted)}
.daily-label{color:var(--body);grid-column:4}
.daily-ref{grid-column:3}
.daily-outcome{grid-column:5}
.daily-outcome{font-size:12px;color:var(--faint);white-space:nowrap}
.daily-fail .daily-outcome{color:var(--fail)}
.daily-pass .daily-outcome{color:var(--pass)}
.daily-partial .daily-outcome{color:var(--amber)}
.mark{width:15px;height:15px;flex:none}
.mark-pass{fill:var(--pass)}
.mark-partial{fill:var(--amber);stroke:var(--amber)}
.mark-fail{stroke:var(--fail)}
.mark-event{stroke:var(--faint)}

/* ---- sources & pager ---- */
.sources{margin-top:36px}
.sources h2{font-size:15px;color:var(--muted);font-weight:700;margin-bottom:10px}
.sources ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.sources li{font-size:15px}
.sources a::after{content:"↗";color:var(--faint);display:inline-block;margin-left:4px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:44px;padding-top:28px;border-top:1px solid var(--rule)}
.pager-link{display:flex;flex-direction:column;gap:4px;border:1px solid var(--rule-strong);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--body)}
a.pager-link:hover{border-color:var(--cyan-2);color:var(--ink)}
.pager-link.is-next{text-align:right}
.pager-link.is-empty{border-style:dashed;color:var(--faint);font-size:14px;justify-content:center}
.pager-label{font:600 12px/1.4 var(--mono);color:var(--cyan-2)}
.pager-title{font-weight:700;color:var(--ink);font-size:15px;line-height:1.5}
.pager-all{margin-top:14px;text-align:center;font-size:14px}

/* ---- index ---- */
.index{padding-bottom:80px}
.index-head{padding-bottom:8px}
.cards{list-style:none;margin:32px auto 0;padding:0 var(--gutter);max-width:calc(var(--read) + 2*var(--gutter));display:grid;gap:18px}
.card-link{display:block;text-decoration:none;color:var(--body);border:1px solid var(--edge);border-radius:16px;padding:24px 26px;background:linear-gradient(180deg,var(--surface-2),var(--surface));transition:border-color .2s,box-shadow .2s}
.card-link:hover{color:var(--body);border-color:rgba(173,241,252,.55);box-shadow:0 0 0 1px rgba(173,241,252,.15),0 24px 60px -36px rgba(127,214,232,.45)}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font:500 13px/1.4 var(--mono);color:var(--muted)}
.card-no{font:800 22px/1 var(--mono);color:var(--cyan);text-shadow:0 0 16px rgba(173,241,252,.35)}
.card-latest{color:var(--night);background:var(--amber);border-radius:999px;padding:2px 9px;font-weight:700;font-size:12px}
.card-link h2{font-size:24px;font-weight:800;margin:14px 0 10px;text-wrap:balance}
.card-tldr{font-size:16px;line-height:1.8;color:var(--body);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.lang-en .card-tldr{line-height:1.6}
.card-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--rule);font-size:14px}
.card-by{display:flex;align-items:center;color:var(--muted)}
.card-by .sep{width:1px;height:14px;background:var(--rule-strong);margin:0 12px}
.card-read{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-weight:700}
.empty{max-width:var(--read);margin:40px auto;padding:0 var(--gutter);color:var(--muted)}

/* ---- responsive ---- */
@media (max-width:1100px){
  .article-head,.hero-figure,.article-grid{max-width:calc(var(--read) + 2*var(--gutter))}
  .article-grid{grid-template-columns:minmax(0,var(--read));grid-template-areas:"main" "rail" "more";justify-content:center}
  .article-rail{margin-top:40px}
}
@media (max-width:680px){
  :root{--gutter:18px}
  body{font-size:16.5px}
  .update-contents--desktop{display:none}
  .update-contents--mobile{display:block}
  .article-head,.index-head{padding-top:36px}
  .article-head h1,.index-head h1{font-size:28px;margin:14px 0 16px}
  .lede{font-size:17px}
  .hero-figure{margin-top:32px}
  .fig-panel{padding:20px 16px 22px;border-radius:14px}
  .fig-value{font-size:30px}
  .prose{margin-top:40px}
  .prose h2{font-size:21px}
  .exhibit pre{font-size:12.5px;padding:14px 16px}
  .card-link{padding:20px 18px}
  .card-link h2{font-size:21px}
  .daily li{grid-template-columns:42px 16px 1fr auto;row-gap:2px}
  .daily-ref{grid-column:3;grid-row:1}
  .daily-label{grid-column:3/span 2;grid-row:2}
  .daily-event .daily-label{grid-row:1;grid-column:3}
  .daily-outcome{grid-column:4;grid-row:1;text-align:right}
  .pager{grid-template-columns:1fr}
  .pager-link.is-next{text-align:left}
}
@media (max-width:520px){
  .fig-compare{grid-template-columns:1fr 28px 1fr}
  .fig-side{padding:14px 8px 14px}
  .fig-value{font-size:21px;margin:8px 0 4px}
  .fig-unit{font-size:13px}
  .fig-eq{font-size:22px}
  .fig-verdict{font-size:16px;padding:9px 16px}
}
@media (max-width:340px){
  .fig-origin::after,.fig-side::before{display:none}
  .fig-origin{padding-bottom:14px}
  .fig-compare{grid-template-columns:1fr}
  .fig-eq{padding:4px 0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Native navigation preserves access without client scripts. */
.mobile-menu{display:none;position:relative;font-size:14px;color:var(--muted)}
.mobile-menu summary{cursor:pointer;list-style:none;display:flex;align-items:center;min-height:44px;padding:4px 11px;border:1px solid #718997;border-radius:0;color:#eff4f4;font-size:12px}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu-links{position:absolute;right:0;top:calc(100% + 8px);z-index:5;display:grid;min-width:230px;max-width:calc(100vw - 36px);max-height:70vh;overflow-y:auto;padding:10px;background:var(--surface);border:1px solid #718997;border-radius:0;box-shadow:0 16px 40px rgba(0,0,0,.5)}
.mobile-menu-links a{display:flex;align-items:center;min-height:44px;padding:7px 12px}
time{white-space:nowrap}
/* Breakpoints follow the home page header: links collapse into the menu at 1200px. */
@media (max-width:1200px){
  .header-note,.site-bar .desk-link{display:none}
  .site-bar{height:72px;padding-inline:22px}
  .brand{font-size:25px}
  .brand small{margin-left:4px;font-size:13px}
  .site-bar nav{gap:18px}
  .mobile-menu{display:block}
}
@media (max-width:1100px){.site-bar{padding-inline:28px}}
@media (max-width:420px){
  .site-bar{height:68px;padding-inline:16px}
  .brand{font-size:23px}
  .brand small{margin-left:5px;font-size:11px}
  .lang-en .brand{font-size:17px}
  .site-bar nav{gap:12px}
  .site-bar .language-switch{min-width:54px;padding-inline:8px;font-size:12px}
}

/* Cover-led weekly archive. Every rule stays inside the archive entrance. */
.index--atlas{width:min(100%,1416px);margin-inline:auto;padding:36px 48px 70px}
.index--atlas .gateway-head{padding:0 0 27px}
.index--atlas .gateway-eyebrow{font:600 11px/1.5 var(--mono);letter-spacing:.16em;color:var(--cyan-2)}
.index--atlas .gateway-heading{display:grid;grid-template-columns:1.25fr 1fr;align-items:end;gap:30px;margin-top:13px}
.index--atlas .gateway-heading h1{font-size:clamp(34px,3.45vw,54px);line-height:1.18;font-weight:800;letter-spacing:-.035em;text-wrap:balance}
.index--atlas .gateway-heading>p{max-width:460px;justify-self:end;padding-bottom:3px;color:var(--muted);font-size:15px;line-height:1.8}
.index--atlas .gateway-index-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px;color:var(--muted);font:500 11px/1.5 var(--mono)}
.index--atlas .gateway-index-meta a{color:var(--muted);text-decoration:none}
.index--atlas .gateway-index-meta a:hover{color:var(--ink)}
.index--atlas .gateway-feature{position:relative;border-top:1px solid #527481;border-bottom:1px solid var(--rule-strong)}
.index--atlas .card-link{padding:0;border:0;border-radius:0;background:none;box-shadow:none;color:var(--body);overflow:hidden;isolation:isolate}
.index--atlas .card-link:hover{color:var(--body);border-color:transparent;box-shadow:none}
.index--atlas .card-link:focus-visible{outline:2px solid var(--cyan);outline-offset:5px;border-radius:0}
.index--atlas .gateway-feature .card-link{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);grid-template-areas:"copy media";min-height:390px;background:linear-gradient(125deg,#0b2734,#06141d 80%)}
.index--atlas .gateway-media{position:relative;grid-area:media;margin:0;overflow:hidden;min-width:0;background:#081923}
.index--atlas .gateway-media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.index--atlas .gateway-feature .gateway-media img{position:absolute;inset:0;object-position:54% 50%}
.index--atlas .gateway-feature .gateway-media::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(7,25,34,.85),transparent 16%),linear-gradient(0deg,rgba(3,12,18,.5),transparent 28%)}
.index--atlas .card-link:hover .gateway-media img{transform:scale(1.02)}
.index--atlas .gateway-media figcaption{position:absolute;z-index:1;bottom:0;right:0;max-width:100%;padding:9px 13px;background:rgba(3,12,18,.84);color:#bfd0d7;font-size:12px;line-height:1.5;letter-spacing:.01em}
.index--atlas .gateway-copy{grid-area:copy;display:flex;flex-direction:column;min-width:0;padding:28px 30px 25px}
.index--atlas .gateway-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font:500 11px/1.4 var(--mono);color:var(--muted)}
.index--atlas .gateway-issue{color:var(--cyan);font-weight:700}
.index--atlas .gateway-latest{padding:3px 7px;border:1px solid rgba(173,241,252,.4);color:var(--cyan);font-size:10px;letter-spacing:.04em}
.index--atlas .card-link h2{font-size:clamp(25px,2.35vw,35px);line-height:1.4;letter-spacing:-.02em;font-weight:800;margin:18px 0 12px;text-wrap:balance}
.index--atlas .gateway-summary{font-size:15px;line-height:1.85;color:#b3c8d2;max-width:52ch}
.index--atlas .gateway-stage{margin-top:14px;color:var(--faint);font:500 11px/1.5 var(--mono)}
.index--atlas .gateway-issue-foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:13px;margin-top:auto;padding-top:23px}
.index--atlas .gateway-byline{color:var(--muted);font-size:11px;line-height:1.5}
.index--atlas .gateway-byline>span{padding-inline:5px;color:#567988}
.index--atlas .gateway-read{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;min-height:44px;padding:10px 15px;background:var(--cyan);color:#06202b;font-size:13px;font-weight:800;line-height:1.4}
.index--atlas .gateway-read>span{font:500 19px/1 var(--mono);transition:transform .2s}
.index--atlas .card-link:hover .gateway-read>span{transform:translate(2px,-2px)}
.index--atlas .card-notice{align-self:flex-start;display:block;max-width:100%;margin:12px 0 0;padding:0;border:0;border-radius:0;background:none;color:#c8ac91;font-size:11px;font-weight:400;line-height:1.5}
.index--atlas .gateway-archive{margin-top:36px}
.index--atlas .gateway-archive-head{display:flex;justify-content:space-between;align-items:end;gap:24px;padding-bottom:20px}
.index--atlas .gateway-archive-head h2{margin-top:7px;font-size:25px;font-weight:700;letter-spacing:-.025em}
.index--atlas .gateway-archive-head>p{font-size:13px;color:var(--muted)}
.index--atlas .gateway-archive-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;list-style:none;margin:0;padding:0}
.index--atlas .gateway-archive-item{min-width:0;border-top:1px solid var(--rule-strong)}
.index--atlas .gateway-archive-item .card-link{height:100%;display:flex;flex-direction:column}
.index--atlas .gateway-archive-item .gateway-media{aspect-ratio:1916/821;flex:none;margin-top:12px}
.index--atlas .gateway-archive-item .gateway-copy{flex:1;padding:21px 0 0}
.index--atlas .gateway-archive-item .card-link h2{font-size:24px;line-height:1.5;margin-top:12px;margin-bottom:10px;max-width:26em}
.index--atlas .gateway-archive-item .gateway-summary{max-width:58ch;font-size:14px}
.index--atlas .gateway-archive-item .gateway-stage{margin-top:10px}
.index--atlas .gateway-archive-item .gateway-issue-foot{padding-top:18px}
.index--atlas .gateway-archive-item .gateway-read{padding:8px 0;background:transparent;color:var(--cyan);gap:20px;min-height:40px}
.index--atlas .gateway-archive-item:only-child{grid-column:1/-1}
.index--atlas .gateway-archive-item:only-child .card-link{display:grid;grid-template-columns:1.1fr 1fr;gap:30px}
.index--atlas .gateway-archive-item:only-child .gateway-media{height:100%;min-height:240px}
.index--atlas .gateway-archive-item:only-child .gateway-copy{padding-bottom:14px}
.index--atlas .gateway-scope{margin-top:37px;padding-top:18px;border-top:1px solid var(--rule);color:var(--muted);font-size:12px;line-height:1.8}
.index--atlas .gateway-empty{margin-top:36px;border-top:1px solid var(--rule);padding-top:30px;color:var(--muted)}
.index--atlas .gateway-cover-fallback{display:flex;flex-direction:column;justify-content:center;height:100%;min-height:240px;gap:12px;padding:30px;color:var(--cyan);background:linear-gradient(135deg,#173947,#071c27)}
.index--atlas .gateway-cover-fallback>span{font:500 12px/1.4 var(--mono);letter-spacing:.1em}
.index--atlas .gateway-cover-fallback>strong{font-size:30px;line-height:1.4}
.index--atlas .gateway-cover-fallback svg{display:block;width:100%;max-height:110px;fill:none;stroke:#6b9da9;stroke-width:1.5}
.index--atlas .gateway-cover-fallback circle{fill:var(--cyan);stroke:none}
@media (min-width:1500px){.index--atlas .gateway-feature .card-link{min-height:420px}}
@media (max-width:1050px){
  .index--atlas{padding-inline:28px;padding-top:30px}
  .index--atlas .gateway-heading{grid-template-columns:1.25fr 1fr;gap:25px}
  .index--atlas .gateway-heading h1{font-size:38px}
  .index--atlas .gateway-feature .card-link{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}
  .index--atlas .gateway-copy{padding:24px}
  .index--atlas .card-link h2{font-size:27px}
  .index--atlas .gateway-issue-foot{align-items:start;gap:10px}
  .index--atlas .gateway-read{gap:18px}
}
@media (max-width:760px){
  .index--atlas{padding:18px 20px 48px}
  .index--atlas .gateway-head{padding-bottom:16px}
  .index--atlas .gateway-heading{display:block;margin-top:8px}
  .index--atlas .gateway-heading h1{font-size:34px;line-height:1.25;letter-spacing:-.03em}
  .index--atlas .gateway-heading>p{max-width:42ch;margin-top:10px;padding:0;font-size:14px;line-height:1.8}
  .index--atlas .gateway-index-meta{font-size:10px;margin-top:12px}
  .index--atlas .gateway-feature .card-link{display:flex;flex-direction:column;min-height:0;background:linear-gradient(145deg,#0b2734,#06141d)}
  .index--atlas .gateway-feature .gateway-media{width:100%;aspect-ratio:1916/821;border-bottom:1px solid var(--rule)}
  .index--atlas .gateway-feature .gateway-media img{position:static;height:100%;object-fit:cover}
  .index--atlas .gateway-feature .gateway-media::after{display:none}
  .index--atlas .gateway-media figcaption{font-size:12px;padding:6px 10px}
  .index--atlas .gateway-copy{padding:20px 22px 22px}
  .index--atlas .gateway-meta{gap:7px 12px;font-size:10px}
  .index--atlas .card-link h2{font-size:26px;line-height:1.35;margin:15px 0 12px}
  .index--atlas .gateway-summary{font-size:14px;line-height:1.85}
  .index--atlas .gateway-stage{margin-top:12px}
  .index--atlas .gateway-issue-foot{padding-top:19px;align-items:center}
  .index--atlas .gateway-byline{font-size:10px}
  .index--atlas .gateway-read{font-size:12px;gap:18px}
  .index--atlas .card-notice{font-size:10px;margin-top:10px}
  .index--atlas .gateway-archive{margin-top:30px}
  .index--atlas .gateway-archive-head{display:block;padding-bottom:18px}
  .index--atlas .gateway-archive-head h2{font-size:24px}
  .index--atlas .gateway-archive-head>p{font-size:12px;margin-top:8px}
  .index--atlas .gateway-archive-list{grid-template-columns:1fr;gap:28px}
  .index--atlas .gateway-archive-item .gateway-media{margin-top:10px}
  .index--atlas .gateway-archive-item .gateway-copy{padding:18px 0 0}
  .index--atlas .gateway-archive-item .card-link h2{font-size:23px;line-height:1.5}
  .index--atlas .gateway-archive-item:only-child .card-link{display:flex;gap:0}
  .index--atlas .gateway-archive-item:only-child .gateway-media{min-height:0;height:auto}
  .index--atlas .gateway-archive-item:only-child .gateway-copy{padding-bottom:0}
  .index--atlas .gateway-scope{margin-top:30px;font-size:11px}
}
@media (max-width:380px){
  .index--atlas{padding-inline:16px}
  .index--atlas .gateway-heading h1{font-size:30px}
  .index--atlas .gateway-copy{padding:19px}
  .index--atlas .gateway-issue-foot{align-items:start;flex-direction:column}
  .index--atlas .gateway-byline{font-size:11px}
  .index--atlas .gateway-read{align-self:stretch}
}
@media (prefers-reduced-motion:reduce){
  .index--atlas .card-link:hover .gateway-media img,.index--atlas .card-link:hover .gateway-read>span{transform:none}
}

/* Shared laboratory identity: journal entrance and all archived editions. */
.tech-journal{
  --night:#050c12;--ground:#081820;--surface:#0b1c25;--surface-2:#102630;
  --rule:#24404b;--rule-strong:#416370;--cyan:#a5eee9;--cyan-2:#80d4d0;--amber:#edb481;
  background-color:var(--night);
  background-image:radial-gradient(1000px 700px at 95% 0,rgba(53,139,148,.1),transparent 75%),linear-gradient(90deg,rgba(126,197,200,.025) 1px,transparent 1px);
  background-size:auto,96px 100%;background-repeat:no-repeat,repeat;
}
.tech-journal :is(h1,h2,h3){text-wrap:balance}
.tech-journal :is(a,summary):focus-visible{outline:2px solid var(--cyan);outline-offset:5px;border-radius:0}
.tech-journal .site-bar{position:relative;z-index:20;min-height:80px;height:auto;gap:26px;padding:14px max(28px,calc((100vw - 1456px)/2));border-bottom:1px solid rgba(150,208,212,.2);background:rgba(5,12,18,.97)}
.tech-journal .brand{display:inline-flex;align-items:center;gap:14px;font-size:25px;letter-spacing:-.03em}
.tech-journal .brand small{font-size:13px;letter-spacing:.035em}
.tech-journal.lang-en .brand{font-size:21px;letter-spacing:.025em}
.tech-journal .journal-brand-mark{display:block;flex:none;width:48px;height:48px;background:url("/images/xiaomai-soul-v1.webp") center/contain no-repeat}
.tech-journal .header-note{font-size:11px;letter-spacing:.04em;color:#91a9b6}
.tech-journal .site-bar nav{gap:26px;font-size:13px}
.tech-journal .site-bar .desk-link{position:relative;min-height:44px;align-content:center}
.tech-journal .site-bar nav a[aria-current]{color:var(--cyan);text-decoration:none}
.tech-journal .site-bar .desk-link[aria-current]::after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--cyan)}
.tech-journal .site-bar .language-switch{min-width:72px;min-height:44px;border-color:#36545f;background:#0a1921;font-size:13px}
.tech-journal .site-bar .language-switch:hover{background:#132d37;border-color:var(--cyan-2)}
.tech-journal .mobile-menu summary{border-color:#36545f;background:#0a1921;min-height:44px}
.tech-journal .mobile-menu-links{border-color:#36545f;background:#08141c;box-shadow:0 18px 40px rgba(0,0,0,.6)}
.tech-journal .mobile-menu-links a:hover{background:#132d37}
.tech-journal .site-foot{position:relative;padding:44px max(28px,calc((100vw - 1320px)/2)) 34px;gap:28px 50px;align-items:start;border-top:1px solid #29454f;background:#050c12}
.tech-journal .site-foot::before{content:"";position:absolute;left:max(28px,calc((100vw - 1320px)/2));top:-1px;width:80px;height:2px;background:var(--cyan)}
.tech-journal .journal-foot-brand>a{font:700 17px/1.4 var(--latin);letter-spacing:.08em;color:#dbecef}
.tech-journal .journal-foot-brand>a>span{color:var(--cyan-2);padding-left:12px}
.tech-journal .journal-foot-brand>p{font-size:12px;margin-top:10px;color:#9eb1bc;line-height:1.7}
.tech-journal .journal-foot-links{max-width:660px;justify-content:flex-end;gap:6px 24px;font-size:13px}
.tech-journal .journal-foot-links a{display:inline-flex;align-items:center;min-height:44px}
.tech-journal:not(.has-visual-atlas) .article-head{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px 64px;max-width:1296px;padding:58px 28px 32px;border-bottom:1px solid var(--rule)}
.tech-journal:not(.has-visual-atlas) .article-head>*{min-width:0;max-width:none}
.tech-journal:not(.has-visual-atlas) .article-head>.kicker{grid-column:1/-1;gap:10px 16px;font-size:12px;letter-spacing:.045em}
.tech-journal:not(.has-visual-atlas) .article-head .issue-no{border-radius:0;padding:5px 10px;background:rgba(130,221,216,.1);border:1px solid #355a62;color:var(--cyan)}
.tech-journal:not(.has-visual-atlas) .article-head>h1{grid-column:1;font-size:clamp(34px,3.5vw,48px);line-height:1.35;letter-spacing:-.025em;margin:2px 0 0}
.tech-journal:not(.has-visual-atlas) .article-head .clause{display:inline}
.tech-journal:not(.has-visual-atlas) .article-head>.lede{grid-column:1;font-size:17px;line-height:1.9;color:#b5c9d2}
.tech-journal.lang-en:not(.has-visual-atlas) .article-head>h1{line-height:1.15;letter-spacing:-.035em}
.tech-journal.lang-en:not(.has-visual-atlas) .article-head>.lede{line-height:1.8}
.tech-journal:not(.has-visual-atlas) .article-head>.byline{grid-column:2;grid-row:2/span 3;align-self:start;grid-template-columns:40px minmax(0,1fr);gap:15px 12px;margin:8px 0 0;padding:20px 0 20px 22px;border-top:0;border-left:1px solid var(--rule)}
.tech-journal:not(.has-visual-atlas) .byline .avatar{grid-row:1;width:40px;height:40px;border-radius:0;background:#0e2630;box-shadow:inset 0 0 0 1px #42616b;font-size:16px}
.tech-journal:not(.has-visual-atlas) .byline-name,.tech-journal:not(.has-visual-atlas) .byline-role{display:block;margin:0;font-size:14px}
.tech-journal:not(.has-visual-atlas) .byline-role{font-size:11px;letter-spacing:.08em;margin-top:2px}
.tech-journal:not(.has-visual-atlas) .byline-meta{grid-column:1/-1;display:grid;gap:9px;color:#91a8b6;font-size:12px;line-height:1.65}
.tech-journal:not(.has-visual-atlas) .byline-meta time{white-space:normal}
.tech-journal:not(.has-visual-atlas) .version-line{grid-column:1;margin:0;font-size:13px}
.tech-journal .version-label{font-size:11px;color:var(--amber)}
.tech-journal .article-grid{padding-top:24px}
.tech-journal :is(.update-toc,.notice,.roadmap,.cta,.tech,.exhibit,.fig-panel,.fig-side,.button,.pager-link){border-radius:2px}
.tech-journal .update-toc{background:#081820;border-color:#29454f}
.tech-journal .update-contents summary{min-height:44px;line-height:1.8;font-size:14px;align-content:center}
.tech-journal .update-contents ol{font-size:14px;line-height:2}
.tech-journal .update-contents a{padding-block:3px}
.tech-journal .prose{margin-top:50px}
.tech-journal .prose h2{font-size:25px;padding-bottom:16px;border-bottom:1px solid #203b46}
.tech-journal .prose h2::before{height:20px;width:3px;box-shadow:none;background:var(--cyan-2)}
.tech-journal .notice{background:rgba(178,120,64,.055);border-color:#614d3b}
.tech-journal .roadmap{background:#081820}
.tech-journal .chip{border-radius:2px;font-weight:600}
.tech-journal .cta{padding:26px;background:linear-gradient(125deg,#102b34,#08161e);border-color:#3b5f68}
.tech-journal .tech{background:#081820}
.tech-journal .tech summary{min-height:72px}
.tech-journal .sources a{overflow-wrap:anywhere}
.tech-journal .pager-link{background:transparent;border-color:#28444e}
.tech-journal .pager-link:hover{border-color:var(--cyan-2);background:#0b2029}
.tech-journal .index--atlas .gateway-eyebrow{color:var(--cyan-2)}
.tech-journal .index--atlas .gateway-feature{border-top-color:#6a999e}
.tech-journal .index--atlas .gateway-feature .card-link{background:linear-gradient(120deg,#0e2630,#07131c)}
.tech-journal .index--atlas .gateway-read{background:var(--cyan);color:#071b22}
.tech-journal .index--atlas .gateway-archive-item .gateway-read{background:transparent;color:var(--cyan)}
.tech-journal .weekly-visuals .wv-hero,.tech-journal .weekly-visuals .wv-panel{border-radius:3px}
@media (max-width:1200px){
  .tech-journal .site-bar{min-height:74px;padding:12px 28px;gap:18px}
  .tech-journal .site-bar nav{gap:12px}
  .tech-journal:not(.has-visual-atlas) .article-head{gap:18px 36px;grid-template-columns:minmax(0,1fr) 240px}
}
@media (max-width:760px){
  .tech-journal{background-size:auto,64px 100%}
  .tech-journal .site-bar{min-height:72px;padding:12px 20px;gap:12px}
  .tech-journal .brand{gap:11px;font-size:23px}
  .tech-journal .brand small{font-size:11px;margin-left:5px}
  .tech-journal .journal-brand-mark{width:38px;height:38px}
  .tech-journal.lang-en .brand{font-size:17px}
  .tech-journal .site-bar .language-switch{min-width:58px;font-size:12px;padding-inline:9px}
  .tech-journal:not(.has-visual-atlas) .article-head{display:block;padding:32px 20px 24px}
  .tech-journal:not(.has-visual-atlas) .article-head>.kicker{font-size:11px;gap:8px 12px}
  .tech-journal:not(.has-visual-atlas) .article-head>h1{font-size:32px;line-height:1.4;margin:20px 0 17px}
  .tech-journal.lang-en:not(.has-visual-atlas) .article-head>h1{font-size:34px;line-height:1.2}
  .tech-journal:not(.has-visual-atlas) .article-head>.lede{font-size:16px;line-height:1.85}
  .tech-journal:not(.has-visual-atlas) .article-head>.byline{margin-top:24px;padding:20px 0 0;border-left:0;border-top:1px solid var(--rule);gap:10px 12px}
  .tech-journal:not(.has-visual-atlas) .byline-meta{display:flex;gap:5px 16px;font-size:11px}
  .tech-journal:not(.has-visual-atlas) .version-line{margin-top:15px;font-size:12px}
  .tech-journal .article-grid{padding-top:8px}
  .tech-journal .prose h2{font-size:23px}
  .tech-journal .site-foot{padding:32px 20px;display:block}
  .tech-journal .site-foot::before{left:20px}
  .tech-journal .journal-foot-links{margin-top:18px;justify-content:flex-start;gap:0 20px;font-size:12px}
  .tech-journal .journal-foot-brand>a{font-size:15px}
}
@media (max-width:380px){
  .tech-journal .site-bar{padding-inline:16px}
  .tech-journal .brand{font-size:22px}
  .tech-journal .brand small{font-size:10px}
  .tech-journal .journal-brand-mark{width:32px;height:32px}
  .tech-journal .site-bar nav{gap:8px}
  .tech-journal:not(.has-visual-atlas) .article-head>h1{font-size:29px}
  .tech-journal.lang-en:not(.has-visual-atlas) .article-head>h1{font-size:31px}
}