:root{--bg:#f6f8fb;--surface:#ffffff;--text:#1b2433;--muted:#5b6678;--border:#e3e8ef;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-soft:#e8efff;--note-bg:#fff7e6;--note-border:#f5b74a;--header-bg:rgba(255, 255, 255, .8);--shadow:0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .06);--shadow-hover:0 2px 4px rgba(16, 24, 40, .06), 0 12px 32px rgba(16, 24, 40, .12);--radius:14px;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;--mono:ui-monospace, SFMono-Regular, "Cascadia Mono", "Noto Sans Mono", Menlo, Consolas, monospace}@media(prefers-color-scheme:dark){:root{--bg:#0e131b;--surface:#161d28;--text:#e6ebf2;--muted:#9aa6b8;--border:#263142;--primary:#5b8cff;--primary-hover:#7aa2ff;--primary-soft:#1b2a4a;--note-bg:#2a2214;--note-border:#b9852c;--header-bg:rgba(14, 19, 27, .8);--shadow:0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);--shadow-hover:0 2px 4px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .4)}}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-family:var(--font);font-size:1rem;line-height:1.65;color:var(--text);background:var(--bg)}main{flex:1}a{color:var(--primary);text-decoration-thickness:1px;text-underline-offset:2px}a:hover{color:var(--primary-hover)}h1,h2,h3{line-height:1.25;letter-spacing:-.01em}code{font-family:var(--mono);font-size:.9em;padding:.1em .4em;border-radius:6px;background:var(--primary-soft)}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 1.25rem}.icon{width:1.25em;height:1.25em;flex-shrink:0}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1.1rem;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:.95rem;line-height:1.2;text-decoration:none;transition:background-color .15s,border-color .15s,transform .15s}.btn:hover{transform:translateY(-1px)}.btn .icon{width:1.1em;height:1.1em}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);color:#fff}.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border)}.btn-ghost:hover{color:var(--text);border-color:var(--muted)}.btn-lg{padding:.8rem 1.4rem;font-size:1rem}.btn-sm{padding:.45rem .9rem;font-size:.9rem}.site-header{position:sticky;top:0;z-index:10;background:var(--header-bg);backdrop-filter:saturate(180%)blur(12px);-webkit-backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--border)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:4rem}.nav-brand{display:inline-flex;align-items:center;gap:.55rem;font-weight:700;font-size:1.1rem;color:var(--text);text-decoration:none}.nav-brand:hover{color:var(--text)}.nav-brand .icon{color:var(--primary);width:1.6rem;height:1.6rem}.nav-links{display:flex;align-items:center;gap:.25rem;margin:0;padding:0;list-style:none}.nav-links a:not(.btn){display:block;padding:.45rem .8rem;border-radius:8px;color:var(--muted);font-weight:500;text-decoration:none}.nav-links a:not(.btn):hover{color:var(--text);background:var(--primary-soft)}.nav-links a[aria-current=page]{color:var(--primary)}.nav-links li:last-child{margin-left:.5rem}.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:2.5rem;height:2.5rem;padding:0 .55rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);cursor:pointer}.nav-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}.nav-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px)rotate(45deg)}.nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}@media(max-width:640px){.nav{flex-wrap:wrap}.nav-toggle{display:flex}.nav-links{display:none;flex-basis:100%;flex-direction:column;align-items:stretch;padding:.5rem 0 1rem}.nav-links.open{display:flex}.nav-links li:last-child{margin:.5rem 0 0}.nav-links .btn{width:100%;justify-content:center}}.hero{padding:5rem 0 4rem;text-align:center;background:radial-gradient(60rem 24rem at 50% -6rem,var(--primary-soft),transparent 70%)}.hero h1{margin:0 0 1rem;font-size:clamp(2.5rem,7vw,4rem);font-weight:800;letter-spacing:-.03em}.hero .lead{max-width:40rem;margin:0 auto 2rem;font-size:1.2rem;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.25rem;padding-bottom:4rem}.card{display:flex;flex-direction:column;padding:1.75rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--text);text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}.card:hover{color:var(--text);transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary)}.card-icon{display:inline-grid;place-items:center;width:3rem;height:3rem;margin-bottom:1rem;border-radius:12px;background:var(--primary-soft);color:var(--primary)}.card-icon .icon{width:1.5rem;height:1.5rem}.card h2{margin:0 0 .5rem;font-size:1.25rem}.card p{margin:0 0 1.25rem;color:var(--muted);flex:1}.card-link{display:inline-flex;align-items:center;gap:.4rem;font-weight:600;color:var(--primary)}.card-link .icon{width:1.1em;height:1.1em;transition:transform .2s}.card:hover .card-link .icon{transform:translateX(3px)}.prose{max-width:780px;padding-top:3rem;padding-bottom:4rem}.prose h1{margin:0 0 1.5rem;font-size:clamp(1.8rem,5vw,2.4rem);font-weight:800;letter-spacing:-.02em}.prose h2{margin:2.5rem 0 .75rem;font-size:1.4rem}.prose h3{margin:2rem 0 .5rem;font-size:1.1rem}.prose h1+h2{margin-top:0}.prose p{margin:0 0 1rem}.table-wrap{margin:1.5rem 0;overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.table-wrap table{width:100%;border-collapse:collapse}.table-wrap th,.table-wrap td{padding:.85rem 1.1rem;text-align:left;white-space:nowrap}.table-wrap th{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border-bottom:1px solid var(--border)}.table-wrap tbody tr+tr td{border-top:1px solid var(--border)}.table-wrap td:first-child{font-weight:600}.note{padding:1rem 1.25rem;border-left:4px solid var(--note-border);border-radius:0 10px 10px 0;background:var(--note-bg)}.not-found{text-align:center}.not-found-code{margin:2rem 0 0;font-size:5rem;font-weight:800;line-height:1;color:var(--primary)}.site-footer{border-top:1px solid var(--border);color:var(--muted);font-size:.9rem}.footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;padding-top:1.5rem;padding-bottom:1.5rem}.site-footer ul{display:flex;gap:1.25rem;margin:0;padding:0;list-style:none}.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover{color:var(--text)}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important}}