:root{--page:#f7f9ff;--surface:#fff;--text:#10162e;--copy:#465069;--muted:#59627a;--nav:#4f5972;--secondary:#66708a;--crumb:#5f6981;--line:#d8def2;--control:#8290b8;--line-strong:#94a4d4;--brand:#3050e0;--brand-deep:#2038b8;--brand-hover:#4665ea;--surface-tint:#e8edff;--screenshot-tint:#f4f6ff;--focus:#10162e;--max:1264px}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--page)}body{margin:0;background:var(--page);color:var(--text);font:1rem/1.58 "Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}img,svg{max-width:100%}.shell{width:min(var(--max),calc(100% - 64px));margin-inline:auto}.skip-link{position:fixed;z-index:20;left:16px;top:12px;max-width:calc(100vw - 32px);overflow-wrap:anywhere;transform:translateY(-160%);background:var(--text);color:var(--page);padding:12px 16px;text-decoration:none;font-weight:800}.skip-link:focus{transform:none}.site-header{position:relative;z-index:15;background:var(--page);border-bottom:1px solid var(--line)}.header-inner{min-height:78px;display:flex;align-items:center;gap:28px}.brand{min-height:44px;display:inline-flex;align-items:center;gap:11px;text-decoration:none;font-weight:900;font-size:1.25rem;letter-spacing:-.03em}.brand-mark{width:36px;height:36px;display:block;object-fit:contain;border-radius:10px;flex:0 0 auto}.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}.main-nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;text-decoration:none;color:var(--nav);font-size:.9rem;border:1px solid transparent}.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--text);border-color:var(--line)}.site-menu{display:none;position:relative;margin-left:auto;z-index:30}.site-menu>summary{list-style:none}.site-menu>summary::-webkit-details-marker{display:none}.site-menu-toggle{min-width:92px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 14px;border:1px solid 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h2{font-size:clamp(1.75rem,3vw,2.45rem);letter-spacing:-.045em;margin:34px 0 12px}.lane p{color:var(--muted);max-width:470px;margin-bottom:0}.merge{position:relative;display:grid;place-items:center;min-width:0}.merge::before,.merge::after{content:"";position:absolute;top:50%;height:2px;width:50%;animation:line-in .8s ease-out both}.merge::before{left:0;background:var(--brand);transform-origin:right}.merge::after{right:0;background:var(--brand-deep);transform-origin:left}.merge-node{position:relative;z-index:2;width:78px;height:78px;border-radius:22px;background:var(--surface);box-shadow:0 0 0 14px var(--page);object-fit:contain}.section{padding:88px 0;border-top:1px solid var(--line)}.section-head{display:grid;grid-template-columns:.7fr 1.3fr;gap:52px;margin-bottom:48px}.section h2,.page-section 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