:root{--bg: #ffffff;--card: #f7f8fb;--txt: #10131c;--sub: #5a6274;--faint: #8b93a4;--stroke: #e6e9f0;--acc: #2e7cf6;--gradient: linear-gradient(100deg, #5b4df5, #2e7cf6, #1fc2f5);--maxw: 46rem}@media (prefers-color-scheme: dark){:root{--bg: #080d1d;--card: #101629;--txt: #eef1f7;--sub: #a3abbd;--faint: #6f7890;--stroke: #1d2438;--acc: #6ea8ff}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--txt);font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}.shell{display:flex;min-height:100vh;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 1.5rem;border-bottom:1px solid var(--stroke);background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.wordmark{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.wordmark:hover{text-decoration:none}.topbar-right{display:flex;align-items:center;gap:1.25rem}.topnav{display:flex;gap:1.25rem;font-size:.875rem}.topnav a{color:var(--sub)}.topnav a.active{color:var(--txt);font-weight:600}.langswitch{display:flex;padding:2px;border:1px solid var(--stroke);border-radius:999px;background:var(--card)}.langswitch button{border:0;border-radius:999px;padding:.25rem .7rem;background:transparent;color:var(--faint);font:inherit;font-size:.75rem;font-weight:600;letter-spacing:.04em;cursor:pointer}.langswitch button.active{background:var(--bg);color:var(--txt);box-shadow:0 1px 2px #00000014}.main{flex:1;width:100%;max-width:var(--maxw);margin:0 auto;padding:0 1.5rem}.footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;max-width:var(--maxw);width:100%;margin:4rem auto 0;padding:1.5rem;border-top:1px solid var(--stroke);color:var(--faint);font-size:.8125rem}.footer nav{display:flex;gap:1.25rem}.footer a{color:var(--faint)}.doc-head{padding:4rem 0 2rem;border-bottom:1px solid var(--stroke)}.eyebrow{margin:0 0 .75rem;color:var(--faint);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.doc-head h1{margin:0;font-size:clamp(1.9rem,5vw,2.6rem);font-weight:700;line-height:1.15;letter-spacing:-.03em}.lede{margin:1.25rem 0 0;color:var(--sub);font-size:1.0625rem}.toc{margin:2rem 0 0;padding:1.25rem 1.5rem;border:1px solid var(--stroke);border-radius:14px;background:var(--card)}.toc-title{margin:0 0 .5rem;color:var(--faint);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.toc ol{margin:0;padding:0;list-style:none}.toc li{line-height:1.9}.toc a{display:flex;gap:.75rem;color:var(--sub);font-size:.9375rem}.toc a:hover{color:var(--txt);text-decoration:none}.toc-num{min-width:1.25rem;color:var(--faint);font-variant-numeric:tabular-nums}.doc-body section{scroll-margin-top:5rem;padding-top:2.75rem}.doc-body h2{display:flex;gap:.75rem;margin:0 0 .75rem;font-size:1.25rem;font-weight:600;letter-spacing:-.015em}.sec-num{min-width:1.5rem;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}.doc-body p{margin:0 0 1rem;color:var(--sub)}.doc-body ul{margin:0 0 1rem;padding-left:1.1rem;color:var(--sub)}.doc-body li{margin-bottom:.4rem;padding-left:.25rem}.doc-body li::marker{color:var(--faint)}.note{padding:.9rem 1.1rem;border-left:3px solid var(--acc);border-radius:0 10px 10px 0;background:var(--card);color:var(--txt)!important;font-size:.9375rem}.totop{margin:3.5rem 0 0;font-size:.8125rem}.totop a{color:var(--faint)}@media (max-width: 560px){.topbar{padding:.75rem 1rem}.topnav{display:none}.main{padding:0 1rem}.doc-head{padding-top:2.5rem}}