:root{
  --ink:#111111;
  --muted:#676767;
  --surface:#f8f8f8;
  --paper:#ffffff;
  --line:#d9d9d9;
  --accent:#d21022;
  --accent-soft:#fff0f2;
  --deep:#111111;
  --sans:Arial,Helvetica,sans-serif;
  --mono:Arial,Helvetica,sans-serif;
  --sidebar:300px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--ink);font:16px/1.62 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.skip-link{position:fixed;top:-64px;left:1rem;z-index:99;padding:.65rem .85rem;background:#fff;color:var(--ink);border:1px solid var(--ink);text-decoration:none}.skip-link:focus{top:1rem}
.reading-progress{position:fixed;z-index:30;inset:0 0 auto;height:3px;background:transparent}.reading-progress span{display:block;width:0;height:100%;background:var(--accent)}
.site-header{position:sticky;top:0;z-index:20;height:64px;display:flex;justify-content:space-between;align-items:center;padding:0 max(1.1rem,calc((100vw - 1180px)/2));border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(10px)}
.brand{display:flex;gap:.65rem;align-items:center;text-decoration:none;color:var(--ink);letter-spacing:0}.brand span{font:700 .72rem/1 var(--sans);letter-spacing:.13em;color:var(--accent);padding:0;border:0}.brand strong{font-size:.94rem;font-weight:700}
.header-actions{display:flex;gap:.55rem}.icon-button,.button{appearance:none;border:0;background:none;font:inherit;cursor:pointer}.icon-button{color:var(--ink);font-size:.84rem;font-weight:700;padding:.6rem .78rem;border:1px solid var(--ink);border-radius:0;background:#fff}.icon-button:hover{background:var(--ink);color:#fff}.icon-button:hover kbd{color:#fff}kbd{font:inherit;font-size:.7rem;padding-left:.2rem;color:var(--muted)}
.site-shell{max-width:1320px;margin:0 auto;display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);align-items:start}.sidebar{position:relative;border-right:1px solid var(--line);background:#fff}.sidebar-inner{position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto;padding:2rem 1.15rem 3rem}.sidebar-title,.toc-label,.eyebrow{margin:0 0 .62rem;font:700 .69rem/1.3 var(--sans);text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.toc-group{margin:0 0 1.65rem}.toc-group ul{padding:0;margin:0;list-style:none}.toc-group li{margin:.05rem 0}.toc-group a{display:block;padding:.42rem .55rem;color:#444;text-decoration:none;font-size:.82rem;line-height:1.35;border-left:2px solid transparent}.toc-group a:hover,.toc-group a.active{color:var(--ink);border-left-color:var(--accent);background:var(--accent-soft);font-weight:700}
.manual-content{width:min(100%,900px);padding:0 clamp(1.5rem,4vw,5rem) 7rem;margin:0 auto;background:var(--paper);box-shadow:none}.manual-hero{padding:clamp(4.5rem,9vw,7.5rem) 0 4rem;border-bottom:1px solid var(--line);margin-bottom:3.7rem}.manual-hero .eyebrow{color:var(--accent);font-weight:700;letter-spacing:.15em}.manual-hero h1{font:700 clamp(3rem,7vw,5.4rem)/.98 var(--sans);letter-spacing:-.065em;margin:.55rem 0 1.2rem;color:var(--deep)}.hero-subtitle{font:400 clamp(1.1rem,2.1vw,1.4rem)/1.45 var(--sans);max-width:44rem;margin:0;color:#666}.hero-actions{display:flex;gap:.7rem;flex-wrap:wrap;margin:2.15rem 0 1rem}.button{padding:.78rem 1rem;border-radius:0;font-weight:700;font-size:.87rem}.button-primary{background:var(--accent);color:#fff;border:1px solid var(--accent)}.button-primary:hover{background:#a70715;border-color:#a70715}.button-secondary{border:1px solid var(--ink);color:var(--ink);background:#fff}.button-secondary:hover{background:var(--ink);color:#fff}.hero-meta{color:var(--muted);font-size:.84rem;margin:1.7rem 0 0}
h1,h2,h3,h4{scroll-margin-top:88px;color:var(--deep)}.manual-content>h1{font:700 clamp(2.2rem,4.8vw,3.85rem)/1.06 var(--sans);letter-spacing:-.055em;margin:5.6rem 0 1.35rem;padding-top:.2rem}.manual-content h2{font:700 clamp(1.5rem,2.8vw,2.15rem)/1.12 var(--sans);letter-spacing:-.035em;margin:3rem 0 1rem}.manual-content h3{font:700 1.03rem/1.35 var(--sans);letter-spacing:-.01em;margin:2.2rem 0 .7rem}.manual-content p{margin:0 0 1.22rem}.manual-content strong{font-weight:700}.manual-content blockquote{margin:2rem 0;padding:1.05rem 1.2rem;border:1px solid #efb8bf;border-left:4px solid var(--accent);background:var(--accent-soft);color:var(--ink);font:700 1.03rem/1.52 var(--sans)}.manual-content blockquote p{margin:0}.manual-content ul,.manual-content ol{margin:0 0 1.4rem;padding-left:1.35rem}.manual-content li{padding-left:.2rem;margin:.32rem 0}.manual-content table{display:block;overflow:auto;width:100%;border-collapse:collapse;margin:1.7rem 0;font-size:.91rem}.manual-content th,.manual-content td{padding:.7rem;border:1px solid var(--line);vertical-align:top;text-align:left}.manual-content th{background:#f3f3f3;font-size:.76rem;letter-spacing:.05em;text-transform:uppercase}.manual-content hr{border:0;border-top:1px solid var(--line);margin:3rem 0}.manual-content input[type=checkbox]{accent-color:var(--accent)}.manual-content section{margin-bottom:1rem}
.back-to-top{position:fixed;right:1.2rem;bottom:1.2rem;width:42px;height:42px;display:none;border:1px solid var(--ink);border-radius:0;background:#fff;color:var(--ink);cursor:pointer;font-size:1.2rem;box-shadow:none}.back-to-top.visible{display:block}.back-to-top:hover{background:var(--ink);color:#fff}
dialog{border:0;padding:0;background:transparent;max-width:none;max-height:none}dialog::backdrop{background:rgba(0,0,0,.44);backdrop-filter:blur(2px)}.drawer{width:min(91vw,430px);height:100vh;margin:0 0 0 auto}.drawer-panel{height:100%;overflow:auto;background:#fff;padding:1.3rem 1.2rem 3rem;box-shadow:-12px 0 40px rgba(0,0,0,.15)}.drawer-header,.search-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:1.2rem;border-bottom:1px solid var(--line);margin-bottom:1.1rem}.drawer-header p,.search-top label{margin:0;font:700 1.2rem var(--sans);letter-spacing:-.03em}.close-button{border:0;background:none;font-size:2rem;line-height:1;cursor:pointer;color:var(--muted)}.search-dialog{width:min(94vw,760px);margin:auto}.search-panel{background:#fff;padding:1.4rem;border-radius:0;box-shadow:0 15px 70px rgba(0,0,0,.25)}#manual-search{width:100%;font:inherit;padding:1rem;border:1px solid var(--ink);border-radius:0;background:#fff;color:var(--ink)}#search-results{padding-top:1rem;max-height:55vh;overflow:auto}.search-result{display:block;padding:1rem 0;border-bottom:1px solid var(--line);color:inherit;text-decoration:none}.search-result:hover h3{color:var(--accent)}.search-result h3{margin:0 0 .3rem;font:700 1.05rem var(--sans);letter-spacing:-.02em}.search-result p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}.search-empty{color:var(--muted);padding:1rem 0}
@media (max-width:1060px){.site-shell{display:block}.sidebar{display:none}.manual-content{min-height:100vh}.contents-toggle{display:inline-block}}@media (min-width:1061px){.contents-toggle{display:none}}@media (max-width:600px){body{font-size:16px}.site-header{padding:0 .9rem;height:60px}.site-shell{grid-template-columns:1fr}.manual-content{padding:0 1.25rem 4rem}.manual-hero{padding:4rem 0 3rem;margin-bottom:3rem}.manual-content>h1{margin-top:4.2rem}.search-toggle kbd{display:none}.icon-button{font-size:.8rem;padding:.42rem .5rem}.brand strong{font-size:.88rem}.manual-content table{font-size:.82rem}}
@media print{.site-header,.sidebar,.back-to-top,.reading-progress,.hero-actions{display:none!important}.manual-content{max-width:none;padding:0;box-shadow:none}.manual-hero{padding:0 0 1rem;margin:0 0 2rem}.manual-content>h1{break-before:page}.manual-content h1,.manual-content h2,.manual-content h3{break-after:avoid}.manual-content blockquote,table{break-inside:avoid}body{background:#fff;color:#000}}