:root{--bg:#07111f;--panel:#0c1a2b;--panel-2:#10243a;--ink:#f3f7fb;--muted:#a9bdd0;--line:#29435d;--cyan:#73d7d1;--amber:#f4c66a;--max:1180px;--shadow:0 24px 60px rgba(0,0,0,.24)}*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:radial-gradient(circle at 80% 0,#132b46 0,transparent 30rem),var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}a{color:inherit;text-underline-offset:.25em}a:hover{color:var(--cyan)}button,input,textarea{font:inherit}.skip-link{position:absolute;left:1rem;top:-4rem;background:var(--cyan);color:#03111b;padding:.6rem 1rem;z-index:100}.skip-link:focus{top:1rem}.site-header{position:sticky;top:0;z-index:20;background:rgba(7,17,31,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.header-inner{max-width:var(--max);min-height:64px;margin:auto;padding:.65rem 1.2rem;display:flex;align-items:center;gap:1.5rem}.site-mark{display:flex;align-items:center;gap:.65rem;font-weight:750;text-decoration:none;white-space:nowrap;min-width:0}.site-mark span:last-child{overflow:hidden;text-overflow:ellipsis}.mark-dot{width:.75rem;height:.75rem;border:2px solid var(--cyan);border-radius:50%;box-shadow:0 0 0 .28rem rgba(115,215,209,.12);flex:none}.site-nav{margin-left:auto;display:flex;gap:1rem;align-items:center}.site-nav a{color:var(--muted);text-decoration:none;font-size:.9rem}.nav-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:999px;padding:.38rem .8rem}main{max-width:var(--max);margin:auto;padding:clamp(2rem,5vw,5rem) 1.2rem 5rem}.hero,.page-hero{border:1px solid var(--line);background:linear-gradient(145deg,rgba(16,36,58,.92),rgba(7,17,31,.9));box-shadow:var(--shadow)}.home-hero{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(290px,.88fr);gap:clamp(2rem,5vw,5rem);padding:clamp(1.5rem,5vw,4.5rem);min-height:500px;align-items:center}.page-hero{padding:clamp(1.5rem,5vw,4rem);margin-bottom:3rem}.page-hero h1,.home-hero h1{font-size:clamp(2rem,6vw,4.7rem);line-height:1.08;letter-spacing:-.045em;margin:.75rem 0 1.25rem;overflow-wrap:anywhere}.page-hero h1{font-size:clamp(1.85rem,5vw,3.65rem)}.hero-copy p,.page-hero p{max-width:62ch;color:var(--muted);font-size:clamp(1rem,2vw,1.15rem)}.eyebrow{display:inline-block;color:var(--cyan);font-size:.77rem;letter-spacing:.14em;text-transform:uppercase;font-weight:800}.hero-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:2rem}.button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:.65rem 1rem;border:1px solid var(--line);text-decoration:none;background:var(--panel)}.button.primary{background:var(--cyan);color:#06121e;border-color:var(--cyan);font-weight:800}.search-map{border:1px solid var(--line);background:#071523;padding:1.4rem;min-width:0}.map-query{display:inline-block;background:var(--amber);color:#18200c;font-weight:800;padding:.5rem .8rem}.map-line{height:46px;width:1px;background:var(--line);margin-left:2rem}.map-nodes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem}.map-nodes span{border:1px solid var(--line);padding:.7rem;text-align:center;background:var(--panel-2)}.search-map p{color:var(--muted);margin:1.2rem 0 0;font-size:.92rem}section{margin-top:clamp(3rem,7vw,6.5rem)}.section-heading{display:grid;grid-template-columns:minmax(150px,.35fr) minmax(0,1fr);gap:1.5rem;align-items:start;margin-bottom:1.5rem}.section-heading h2,section>h2{font-size:clamp(1.5rem,3vw,2.5rem);line-height:1.2;margin:0}.prose-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem;color:var(--muted);font-size:1.05rem}.editorial-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.note-card{border:1px solid var(--line);background:rgba(12,26,43,.78);padding:1.25rem;min-width:0}.note-card h3{font-size:1.15rem;line-height:1.35;margin:.6rem 0}.note-card p{color:var(--muted)}.note-card .micro{font-size:.85rem;color:var(--amber)}.split-panel{display:grid;grid-template-columns:.6fr 1.4fr;gap:2rem;padding:2rem;border:1px solid var(--line);background:var(--panel)}.reading-list{margin:0;padding:0;list-style:none}.reading-list li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--line)}.reading-list span{color:var(--muted);font-size:.85rem}.steps,.faq{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}.steps article,.faq article{border-top:2px solid var(--cyan);padding:1rem 0}.steps h3,.faq h3{font-size:1rem}.steps p,.faq p{color:var(--muted)}.article-layout{max-width:900px;margin:auto}.article-layout section{max-width:760px;margin-left:auto;margin-right:auto}.callout{border-left:3px solid var(--amber);background:var(--panel);padding:1rem 1.2rem;color:var(--muted)}.check-list{padding-left:1.3rem}.check-list li{margin:.45rem 0}.annotated-list{list-style:none;padding:0;display:grid;gap:1rem}.annotated-list li{border:1px solid var(--line);padding:1rem;background:var(--panel)}.annotated-list p{color:var(--muted);margin:.5rem 0 0}.worksheet{display:grid;gap:1rem;border:1px solid var(--line);padding:1.2rem;background:var(--panel)}.worksheet label{display:grid;gap:.4rem}.worksheet label span,.demo-badge{color:var(--amber);font-size:.8rem}.worksheet input,.worksheet textarea{width:100%;min-width:0;border:1px solid var(--line);background:#07111f;color:var(--ink);padding:.7rem}.related{border-top:1px solid var(--line);padding-top:2rem}.related-links{display:flex;gap:.8rem;flex-wrap:wrap}.related-links a{border:1px solid var(--line);padding:.55rem .8rem;text-decoration:none}.site-footer{max-width:var(--max);margin:auto;border-top:1px solid var(--line);padding:2rem 1.2rem 3rem;display:grid;grid-template-columns:1fr 1fr;gap:1rem;color:var(--muted)}.site-footer nav{display:flex;justify-content:flex-end;gap:.8rem;flex-wrap:wrap}.footer-title{color:var(--ink);font-weight:800;margin:0}.footer-status{grid-column:1/-1;font-size:.82rem}.error-hero{min-height:420px;display:flex;flex-direction:column;justify-content:center}@media(max-width:900px){.site-nav{display:none;position:absolute;top:64px;left:1rem;right:1rem;padding:1rem;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.is-open{display:flex}.nav-toggle{display:block}.home-hero,.split-panel{grid-template-columns:1fr}.editorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.steps,.faq{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.header-inner,main,.site-footer{padding-left:1rem;padding-right:1rem}.site-mark{max-width:68vw}.home-hero{padding:1.25rem}.section-heading,.prose-grid,.editorial-grid,.steps,.faq,.site-footer{grid-template-columns:1fr}.reading-list li{grid-template-columns:1fr}.site-footer nav{justify-content:flex-start}.hero-actions,.related-links{align-items:stretch;flex-direction:column}.button,.related-links a{width:100%}}