:root{color-scheme:light;--bg:#f4f7fb;--surface:#fff;--surface2:#eef3fb;--text:#152033;--muted:#596579;--line:#d8e0ec;--accent:#3157d5;--accent2:#6d3bd1;--ok:#147a4a;--warn:#a66000;--danger:#b22f3c;--code:#1e1f22;--codeText:#d6deeb;--shadow:0 16px 40px rgba(32,48,78,.10)}
html[data-theme="dark"]{color-scheme:dark;--bg:#0f141c;--surface:#171e29;--surface2:#202938;--text:#edf3ff;--muted:#aab6ca;--line:#334156;--accent:#8eacff;--accent2:#c19cff;--ok:#56d89c;--warn:#ffc66d;--danger:#ff7b88;--code:#111318;--codeText:#d6deeb;--shadow:0 16px 40px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:24px;background:var(--surface);border-right:1px solid var(--line);overflow:auto}.brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:1.05rem}.logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white}.nav{display:grid;gap:7px;margin-top:24px}.nav a{padding:9px 11px;border-radius:10px;color:var(--text)}.nav a:hover{background:var(--surface2);text-decoration:none}.main{min-width:0}.topbar{position:sticky;top:0;z-index:5;display:flex;justify-content:flex-end;padding:12px 24px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}button{font:inherit}.theme-toggle{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:8px 12px;cursor:pointer}.content{max-width:1120px;margin:auto;padding:44px 34px 80px}.hero{padding:38px;border-radius:24px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 15%,var(--surface)),color-mix(in srgb,var(--accent2) 13%,var(--surface)));box-shadow:var(--shadow);border:1px solid var(--line)}h1{font-size:clamp(2.1rem,5vw,4.4rem);line-height:1.03;margin:.15em 0}.lead{font-size:1.15rem;color:var(--muted);max-width:780px}.badges{display:flex;gap:8px;flex-wrap:wrap}.badge{padding:5px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:.88rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.card h3{margin-top:0}.section{scroll-margin-top:80px;margin-top:54px}.section h2{font-size:clamp(1.55rem,3vw,2.3rem);margin-bottom:12px}.muted{color:var(--muted)}.callout{border-left:5px solid var(--accent);padding:16px 18px;background:var(--surface);border-radius:12px}.callout.danger{border-color:var(--danger)}.callout.ok{border-color:var(--ok)}.code-wrap{position:relative;margin:16px 0}.copy{position:absolute;right:10px;top:10px;border:1px solid #49515f;background:#272b33;color:#eef3ff;border-radius:8px;padding:5px 9px;cursor:pointer;z-index:2}pre{margin:0;background:var(--code);color:var(--codeText);border-radius:14px;padding:48px 18px 18px;overflow:auto;tab-size:4;box-shadow:var(--shadow)}code{font:14px/1.55 "JetBrains Mono","Cascadia Code",Consolas,monospace;white-space:pre}.tok-key{color:#cf8e6d}.tok-str{color:#6aab73}.tok-com{color:#7a7e85;font-style:italic}.tok-num{color:#2aacb8}.tok-type{color:#56a8f5}.tok-prop{color:#c77dbb}.architecture{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;overflow:auto}.architecture svg{min-width:720px;width:100%;height:auto}.steps{counter-reset:step;display:grid;gap:12px}.step{counter-increment:step;display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start}.step:before{content:counter(step);width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#fff;font-weight:800}table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:14px;overflow:hidden}th,td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left}th{background:var(--surface2)}footer{margin-top:60px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px}
@media(max-width:900px){.layout{display:block}.sidebar{position:relative;height:auto;border-right:0;border-bottom:1px solid var(--line)}.nav{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{top:0}.content{padding:26px 18px 60px}.grid{grid-template-columns:1fr}.hero{padding:24px}}
@media(max-width:520px){.nav{grid-template-columns:1fr}.sidebar{padding:18px}.topbar{padding:8px 14px}.content{padding:18px 12px 48px}.hero{border-radius:18px}h1{font-size:2.15rem}.card{padding:16px}pre{border-radius:10px;font-size:13px}.architecture{padding:8px}}
@media print{.sidebar,.topbar,.copy{display:none}.layout{display:block}.content{max-width:none;padding:0}.card,.hero{box-shadow:none;break-inside:avoid}body{background:white;color:black}}