@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSans3-normal-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSans3-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSerif4-italic-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSerif4-italic-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSerif4-normal-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/SourceSerif4-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root{--bg:#faf6ee;--paper:#fffdf9;--ink:#2b2622;--muted:#6e645a;--rule:#e3d9c8;--accent:#b5361f;--accent-strong:#8f2915;--tint:#f3eadb;
--serif:"Source Serif 4",Georgia,"Songti SC","STSong",serif;--sans:"Source Sans 3","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color-scheme:light}
:root[data-theme=dark]{--bg:#1b1916;--paper:#24211d;--ink:#ece5da;--muted:#b0a596;--rule:#3b352e;--accent:#e8806a;--accent-strong:#f49c88;--tint:#2c2823;color-scheme:dark}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#1b1916;--paper:#24211d;--ink:#ece5da;--muted:#b0a596;--rule:#3b352e;--accent:#e8806a;--accent-strong:#f49c88;--tint:#2c2823;color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent-strong)}
b,strong{font-weight:650}
/* header */
.site-head{border-bottom:1px solid var(--rule);background:var(--bg)}
.site-head .in{max-width:1120px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:14px 22px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:1.12em;color:var(--ink);text-decoration:none;letter-spacing:-.005em}
.brand:hover{color:var(--ink)}
.seal{flex:none;width:30px;height:30px;border-radius:6px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;line-height:1;box-shadow:inset 0 0 0 3px var(--accent),inset 0 0 0 4.5px #fff}
.site-nav{margin-left:auto;display:flex;gap:6px 20px;align-items:center;flex-wrap:wrap;font-family:var(--sans);font-size:.93em}
.site-nav a{color:var(--ink);text-decoration:none}
.site-nav a:hover{color:var(--accent)}
.theme{order:3;font-family:var(--sans);font-size:.85em;padding:4px 11px;border:1px solid var(--rule);border-radius:999px;background:transparent;color:var(--muted);cursor:pointer}
.theme:hover{border-color:var(--accent);color:var(--accent)}
/* reading column */
main{max-width:760px;margin:0 auto;padding:26px 20px 64px}
main.wide{max-width:1120px}
h1{font-weight:600;font-size:2.3em;line-height:1.15;letter-spacing:-.012em;margin:.2em 0 .25em}
.sub{color:var(--muted);font-size:1.08em;margin:0 0 1.6em}
h2{font-weight:600;font-size:1.5em;line-height:1.25;margin:2em 0 .65em;padding-bottom:.3em;border-bottom:1px solid var(--rule)}
h3{font-weight:600;font-size:1.18em;line-height:1.3;margin:1.6em 0 .4em}
.kicker{font-family:var(--sans);font-size:.76em;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.crumbs{font-family:var(--sans);font-size:.86em;color:var(--muted);margin:0 0 1.2em}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
table{border-collapse:collapse;width:100%;margin:1em 0 1.5em;font-family:var(--sans);font-size:.9em;line-height:1.5;background:var(--paper);overflow-wrap:break-word;hyphens:auto}
@media (max-width:640px){table.wide{display:block;overflow-x:auto;width:auto}table.wide th,table.wide td{min-width:7.5em}}
th,td{border:1px solid var(--rule);padding:8px 11px;text-align:left;vertical-align:top}
th{background:var(--tint);font-weight:700}
img{max-width:100%;height:auto;display:block;margin:1em auto .3em;border-radius:6px}
img.diagram{border:1px solid var(--rule);background:#fff}
figure{margin:1.2em 0}
figure img{max-height:480px;width:auto}
figcaption{text-align:center;font-family:var(--sans);font-size:.86em;color:var(--muted);line-height:1.45}
.opts{margin:.3em 0 1.1em 0}
.lines{border-bottom:1px solid var(--muted);margin:0 0 1.2em}
.lines.l2{height:4.2em;background:repeating-linear-gradient(transparent,transparent 2.05em,var(--muted) 2.05em,var(--muted) 2.1em)}
.lines.l3{height:6.3em;background:repeating-linear-gradient(transparent,transparent 2.05em,var(--muted) 2.05em,var(--muted) 2.1em)}
details{border:1px solid var(--rule);border-radius:10px;background:var(--paper);padding:.7em 1.1em;margin:1.2em 0}
summary{font-family:var(--sans);font-weight:700;cursor:pointer;color:var(--accent)}
.photo{border:1px dashed var(--rule);border-radius:10px;background:var(--paper);padding:.9em 1.1em;margin:1em 0}
.photo .t{font-weight:700}
.photo .c{font-style:italic}
.cr{font-family:var(--sans);font-size:.84em;color:var(--muted)}
.list li{margin:.45em 0}
.soon{color:var(--muted)}
:root[data-theme=dark] img.diagram{filter:invert(.9)}
:root[data-theme=dark] figure img{filter:brightness(.9)}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) img.diagram{filter:invert(.9)}:root:not([data-theme=light]) figure img{filter:brightness(.9)}}
/* hero */
.hero{position:relative;min-height:460px;display:flex;align-items:flex-end;background:#3a2f25 center 40%/cover no-repeat;color:#fff}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(25,18,12,.08) 25%,rgba(25,18,12,.78))}
.hero .in{position:relative;z-index:1;max-width:1120px;width:100%;margin:0 auto;padding:40px 20px 42px}
.hero .kicker{color:#f6c2b4}
.hero h1{color:#fff;font-size:3.1em;margin:.12em 0 .18em;text-shadow:0 1px 18px rgba(0,0,0,.35)}
.hero p{font-size:1.2em;max-width:34em;margin:0 0 1.2em;color:#f7efe3}
.hero .credit{position:absolute;right:14px;bottom:8px;z-index:1;font-family:var(--sans);font-size:.72em;color:rgba(255,255,255,.72)}
.hero .credit a{color:inherit}
.btn{display:inline-block;font-family:var(--sans);font-weight:700;font-size:.95em;padding:.68em 1.25em;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none}
.btn:hover{background:var(--accent-strong);color:#fff}
/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:22px;margin:1.2em 0 2.2em}
.card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--rule);border-radius:12px;overflow:hidden;color:var(--ink);text-decoration:none;transition:transform .15s ease,box-shadow .15s ease}
a.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(70,45,20,.13);color:var(--ink)}
.card img{margin:0;border-radius:0;width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--tint)}
.card .body{padding:15px 18px 18px;display:flex;flex-direction:column;gap:5px;flex:1}
.card h3{margin:0;font-size:1.22em}
.card p{margin:0;font-size:.95em;color:var(--muted)}
.card .meta{font-family:var(--sans);font-size:.86em;color:var(--muted);margin-top:auto;padding-top:10px}
.card.later img{filter:grayscale(.55) contrast(.92);opacity:.85}
.card.later .meta{font-style:italic}
.cards.text .card{padding:16px 18px}
.cards.text .card h3{font-size:1.08em}
/* unit banner */
.banner{margin:0 0 1.2em}
.banner img{width:100%;aspect-ratio:21/8;object-fit:cover;border-radius:12px;margin:0}
.banner figcaption{text-align:right;font-size:.75em;margin-top:.35em}
/* about + badges */
.about{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:start}
.about p{margin:0 0 1em}
.facts{background:transparent;font-size:.92em}
.facts th,.facts td{border:0;border-bottom:1px solid var(--rule);background:transparent;padding:.5em .3em}
.facts th{color:var(--accent);width:36%}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:14px;margin:.6em 0 0}
.badge{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:16px 10px 14px;background:var(--paper);border:1px solid var(--rule);border-radius:12px;font-family:var(--sans);font-size:.84em;line-height:1.3;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.badge:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(70,45,20,.13);border-color:color-mix(in srgb,var(--accent) 35%,var(--rule))}
@media (prefers-reduced-motion:reduce){.card,.badge{transition:none}a.card:hover,.badge:hover{transform:none}}
.badge .mark{height:72px;width:100%;display:flex;align-items:center;justify-content:center}
.badge .mark img{max-height:68px;max-width:128px;width:auto;margin:0;border-radius:4px;background:#fff;padding:4px}
.badge .mono{width:64px;height:64px;border-radius:50%;border:2px solid var(--accent);color:var(--accent);display:grid;place-items:center;font-family:var(--serif);font-weight:700;font-size:1.3em;letter-spacing:.03em;box-shadow:inset 0 0 0 4px var(--paper),inset 0 0 0 5px var(--accent)}
/* footer */
.site-foot{border-top:1px solid var(--rule)}
.site-foot .in{max-width:1120px;margin:0 auto;padding:22px 20px 40px;font-family:var(--sans);font-size:.86em;color:var(--muted);display:flex;gap:10px 22px;flex-wrap:wrap;justify-content:space-between}
.site-foot a{color:var(--muted)}
.credits li{margin:.6em 0;font-size:.95em}
@media (max-width:760px){body{font-size:17px}h1{font-size:1.95em}.hero{min-height:380px}.hero .in{padding-bottom:58px}.hero h1{font-size:2.2em}.hero p{font-size:1.06em}.hero .credit{left:20px;right:20px;bottom:12px;font-size:.66em;line-height:1.35}.about{grid-template-columns:1fr;gap:10px}.site-head .in{padding:12px 16px;gap:8px}.site-nav{order:3;margin-left:0;width:100%;gap:4px 16px;font-size:.86em}.theme{order:2;margin-left:auto;padding:3px 9px}}
@media print{html:root:not([data-print]){--bg:#fff;--paper:#fff;--ink:#111;--muted:#555;--rule:#bbb;--tint:#eee;color-scheme:light}img.diagram,figure img{filter:none!important}.site-head,.site-foot,.hero,.theme,.banner{display:none}body{font-size:12pt}main{max-width:none;padding:0}details{display:block}details>*{display:block}summary{list-style:none}.crumbs{display:none}a{text-decoration:none;color:inherit}h2{break-after:avoid}img,table,.photo{break-inside:avoid}}