:root{--bg: #ffffff;--bg-soft: #f8fafc;--sidebar-bg: #f8fafc;--fg: #334155;--fg-strong: #0f172a;--muted: #64748b;--border: #e2e8f0;--border-strong: #cbd5e1;--accent: #2563eb;--accent-strong: #1d4ed8;--accent-soft: #eff6ff;--code-bg: #f1f5f9;--pre-bg: #0f172a;--pre-fg: #e2e8f0;--warn-bg: #fffbeb;--warn-border: #fde68a;--shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 6px 20px rgba(15, 23, 42, .06);--font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--sidebar-w: 270px;--content-w: 768px;--toc-w: 200px;--header-h: 60px}:root[data-theme=dark]{--bg: #0f172a;--bg-soft: #1e293b;--sidebar-bg: #0d1424;--fg: #cbd5e1;--fg-strong: #f1f5f9;--muted: #94a3b8;--border: #1e293b;--border-strong: #334155;--accent: #3b82f6;--accent-strong: #60a5fa;--accent-soft: #172033;--code-bg: #1e293b;--pre-bg: #020617;--pre-fg: #e2e8f0;--warn-bg: #1f1c0c;--warn-border: #46411d;--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .4)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--fg);background:var(--bg);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}a{color:var(--accent-strong);text-decoration:none}a:hover{text-decoration:underline}.chev{display:inline-block;width:7px;height:7px;flex:none;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);transition:transform .2s ease;opacity:.7}details[open]>summary .chev{transform:rotate(45deg)}.site-header{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--border)}.header-inner{max-width:1280px;margin:0 auto;height:var(--header-h);padding:0 20px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.16rem;color:var(--fg-strong);letter-spacing:-.01em}.brand:hover{text-decoration:none}.brand .logo{width:27px;height:27px}.nav{display:flex;gap:18px}.nav a{color:var(--muted);font-weight:600;font-size:.94rem}.nav a:hover{color:var(--accent-strong);text-decoration:none}.header-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:9px;background:transparent;border:1px solid var(--border);color:var(--fg);cursor:pointer;transition:background .15s,border-color .15s}.icon-btn:hover{background:var(--bg-soft);border-color:var(--border-strong)}.icon-btn svg{width:18px;height:18px}.nav-toggle{display:none}:root[data-theme=dark] .icon-sun{display:inline}:root[data-theme=dark] .icon-moon{display:none}.icon-sun{display:none}.icon-moon{display:inline}.docs{max-width:1280px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);gap:44px;align-items:start}.docs.with-toc{grid-template-columns:var(--sidebar-w) minmax(0,1fr) var(--toc-w)}.docs-main{min-width:0;padding:38px 0 10px}.docs-main .inner{max-width:var(--content-w)}.toc{position:sticky;top:var(--header-h);align-self:start;max-height:calc(100vh - var(--header-h));overflow-y:auto;padding:32px 0 40px;font-size:.85rem}.toc-title{text-transform:uppercase;letter-spacing:.06em;font-size:.7rem;font-weight:700;color:var(--muted);margin:0 0 10px}.toc ul{list-style:none;margin:0;padding:0}.toc a{display:block;padding:5px 0 5px 13px;color:var(--muted);border-left:2px solid var(--border);line-height:1.4}.toc a:hover{color:var(--accent-strong);border-left-color:var(--accent);text-decoration:none}.toc-sub a{padding-left:26px;font-size:.82rem}.sidebar{position:sticky;top:var(--header-h);max-height:calc(100vh - var(--header-h));overflow-y:auto;padding:24px 12px 40px 0}.sidebar-filter{width:100%;padding:9px 12px;margin-bottom:14px;border:1px solid var(--border);border-radius:9px;background:var(--bg-soft);color:var(--fg);font-size:.9rem;font-family:var(--font)}.sidebar-filter:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}.sidebar-group{margin-bottom:4px;border-radius:8px}.sidebar-group>summary{list-style:none;cursor:pointer;user-select:none;display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:7px;font-size:.73rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.sidebar-group>summary::-webkit-details-marker{display:none}.sidebar-group>summary:hover{background:var(--bg-soft);color:var(--fg-strong)}.sidebar-group>summary .grow{flex:1;color:inherit}.sidebar-group>summary a.section-link:hover{color:var(--accent-strong);text-decoration:none}.sidebar-group ul{list-style:none;margin:2px 0 8px;padding:0}.sidebar-link{display:block;padding:6px 10px 6px 20px;border-radius:7px;color:var(--fg);font-size:.89rem;line-height:1.35;font-weight:500;border-left:2px solid transparent}.sidebar-link:hover{background:var(--bg-soft);text-decoration:none;color:var(--accent-strong)}.sidebar-link.active{background:var(--accent-soft);color:var(--accent-strong);font-weight:600;border-left-color:var(--accent)}.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:11px;font-weight:650;font-size:.95rem;transition:transform .12s ease,box-shadow .15s ease,background .15s ease}.btn-primary{background:linear-gradient(180deg,var(--accent),var(--accent-strong));color:#fff;border:1px solid var(--accent-strong);box-shadow:0 1px 2px #2563eb40,0 5px 16px #2563eb2e}.btn-primary:hover{color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 2px 5px #2563eb4d,0 9px 24px #2563eb38}.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--border-strong)}.btn-ghost:hover{background:var(--bg-soft);text-decoration:none}.landing{max-width:1080px;margin:0 auto;padding:0 20px 24px}.home-hero{position:relative;text-align:center;margin:16px 0 10px;padding:64px 28px 48px;border:1px solid var(--border);border-radius:24px;overflow:hidden;background:radial-gradient(112% 130% at 50% -12%,var(--accent-soft) 0%,transparent 58%),var(--bg)}.home-hero .eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:.14em;font-size:.71rem;font-weight:700;color:var(--accent-strong);margin:0 0 16px}.home-hero h1{font-size:3rem;line-height:1.05;letter-spacing:-.035em;margin:0 0 16px;color:var(--fg-strong)}.home-hero .lede{font-size:1.13rem;line-height:1.6;color:var(--muted);max-width:600px;margin:0 auto 28px}.home-hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.popular{margin-top:30px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center}.popular .lbl{color:var(--muted);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-right:2px}.popular a{font-size:.83rem;font-weight:600;padding:5px 13px;border:1px solid var(--border);border-radius:20px;color:var(--fg);background:color-mix(in srgb,var(--bg) 70%,transparent)}.popular a:hover{border-color:var(--accent);color:var(--accent-strong);background:var(--accent-soft);text-decoration:none}.section-title{font-size:1.55rem;margin:60px 0 6px;color:var(--fg-strong);letter-spacing:-.015em;text-align:center}.section-sub{color:var(--muted);margin:0 0 26px;text-align:center;font-size:.96rem}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}.topic-card{display:flex;flex-direction:column;padding:22px;border:1px solid var(--border);border-radius:14px;background:var(--bg);transition:border-color .15s,transform .15s,box-shadow .15s}.topic-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow);text-decoration:none}.topic-card .ic{width:42px;height:42px;border-radius:11px;background:var(--accent-soft);color:var(--accent-strong);display:flex;align-items:center;justify-content:center;margin-bottom:14px}.topic-card .ic svg{width:22px;height:22px}.topic-card h3{margin:0 0 6px;font-size:1.12rem;color:var(--fg-strong)}.topic-card p{margin:0;color:var(--muted);font-size:.92rem;line-height:1.5;flex:1}.topic-card .more{margin-top:14px;color:var(--accent-strong);font-weight:650;font-size:.9rem}.latest-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px}.latest-list a{display:block;padding:16px 18px;border:1px solid var(--border);border-radius:12px;background:var(--bg);height:100%}.latest-list a:hover{border-color:var(--accent);text-decoration:none;background:var(--bg-soft)}.latest-list .lt{display:block;font-weight:650;color:var(--fg-strong);margin:9px 0 4px;line-height:1.3}.latest-list .ld{display:block;color:var(--muted);font-size:.86rem;line-height:1.45}.post-list{list-style:none;padding:0;margin:8px 0 0}.post-list li{padding:18px 0;border-bottom:1px solid var(--border)}.chip{display:inline-block;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--accent-strong);background:var(--accent-soft);padding:3px 9px;border-radius:20px}.post-list h2{font-size:1.18rem;margin:8px 0 4px;line-height:1.3}.post-list h2 a{color:var(--fg-strong)}.post-list h2 a:hover{color:var(--accent-strong)}.post-list p{margin:2px 0 0;color:var(--muted);font-size:.94rem}.post-list .date{font-size:.81rem;color:var(--muted)}.crumbs{font-size:.83rem;color:var(--muted);margin:0 0 20px}.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--accent-strong)}.crumbs span{margin:0 7px;opacity:.6}.topic-h1{font-size:2.15rem;margin:6px 0 8px;color:var(--fg-strong);letter-spacing:-.02em}.topic-intro{color:var(--muted);margin:0 0 22px;padding-bottom:22px;border-bottom:1px solid var(--border);font-size:1.04rem;line-height:1.55}.post-head{margin-bottom:30px;padding-bottom:24px;border-bottom:1px solid var(--border)}.post-head .chip{margin-bottom:12px}.post-head h1{font-size:2.15rem;line-height:1.16;margin:12px 0;letter-spacing:-.025em;color:var(--fg-strong)}.post-head .meta{color:var(--muted);font-size:.87rem;margin:0}.content{font-size:1.03rem}.content h2{font-size:1.4rem;margin:38px 0 12px;line-height:1.25;color:var(--fg-strong);letter-spacing:-.01em}.content h3{font-size:1.13rem;margin:26px 0 10px;color:var(--fg-strong)}.content p{margin:0 0 16px}.content ul,.content ol{margin:0 0 16px;padding-left:24px}.content li{margin-bottom:7px}.content img{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--border)}.content code{background:var(--code-bg);padding:2px 6px;border-radius:5px;font-size:.87em;font-family:var(--mono)}.content pre{background:var(--pre-bg);color:var(--pre-fg);padding:16px 18px;border-radius:12px;overflow-x:auto;font-size:.85rem;line-height:1.55}.content pre code{background:none;padding:0;color:inherit}.content blockquote{margin:0 0 18px;padding:14px 18px;background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:12px}.content blockquote p:last-child{margin-bottom:0}.content table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:.89rem}.content th,.content td{border:1px solid var(--border);padding:9px 12px;text-align:left}.content th{background:var(--bg-soft);font-weight:700;color:var(--fg-strong)}.content a{font-weight:600}.content hr{border:none;border-top:1px solid var(--border);margin:30px 0}.content :target{scroll-margin-top:calc(var(--header-h) + 12px)}.page{padding:34px 20px 0}.page .inner{max-width:var(--content-w);margin:0 auto}.page h1{font-size:1.95rem;margin:0 0 18px;color:var(--fg-strong)}.page h2{font-size:1.28rem;margin:28px 0 10px;color:var(--fg-strong)}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:56px;padding:22px 20px;color:var(--muted);font-size:.9rem}.footer-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:14px 24px;flex-wrap:wrap}.site-footer a{color:var(--muted)}.site-footer .links{display:flex;gap:20px}.site-footer .links a{font-weight:600}.site-footer .links a:hover{color:var(--accent-strong)}.site-footer .copy{margin:0}@media(max-width:1100px){.docs.with-toc{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}.toc{display:none}}@media(max-width:900px){.docs,.docs.with-toc{grid-template-columns:1fr;gap:0}.nav{display:none}.nav-toggle{display:inline-flex}.sidebar{position:fixed;top:var(--header-h);left:0;right:0;bottom:0;z-index:30;background:var(--sidebar-bg);padding:18px 20px 40px;max-height:none;display:none;border-top:1px solid var(--border)}.sidebar.open{display:block}.docs-main{padding-top:24px}}@media(max-width:520px){body{font-size:16px}.header-inner{gap:10px;padding:0 14px}.nav{display:none}.home-hero{padding:44px 18px 34px;border-radius:18px}.home-hero h1{font-size:2rem}.home-hero .lede{font-size:1.02rem}.section-title{font-size:1.3rem;margin-top:44px}.post-head h1{font-size:1.55rem}.content h2{font-size:1.24rem}.content pre{font-size:.8rem}.btn{width:100%;justify-content:center}}.dl-wrap{max-width:1080px;margin:0 auto;padding:0 20px 24px}.dl-hero{padding:46px 0 24px;margin-bottom:6px;border-bottom:1px solid var(--border)}.dl-hero h1{font-size:2.5rem;line-height:1.08;letter-spacing:-.03em;margin:0 0 14px;color:var(--fg-strong)}.dl-hero p{font-size:1.12rem;line-height:1.6;color:var(--muted);max-width:720px;margin:0}.dl-checked{display:flex;align-items:center;gap:9px;font-size:.88rem;color:var(--muted);margin-top:18px}.dl-checked .dot{width:9px;height:9px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px color-mix(in srgb,#22c55e 20%,transparent);flex:none}.dl-h1{font-size:2rem;margin:4px 0 8px;color:var(--fg-strong);letter-spacing:-.015em}.dl-lead{color:var(--muted);margin:0 0 18px;max-width:720px}.dl-note{background:var(--bg-soft);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;padding:13px 17px;margin:22px 0 8px;font-size:.93rem;line-height:1.6;color:var(--fg)}.dl-note code{background:var(--code-bg);padding:1px 5px;border-radius:5px;font-size:.85em;font-family:var(--mono)}.dl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px;margin-top:6px}.dl-card{display:flex;flex-direction:column;padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--bg);transition:border-color .15s,transform .15s,box-shadow .15s}.dl-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow);text-decoration:none}.dl-card h3{margin:0 0 6px;font-size:1.12rem;color:var(--fg-strong)}.dl-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5;flex:1}.dl-card .dl-meta{margin-top:14px;color:var(--accent-strong);font-weight:650;font-size:.88rem}.dl-table-scroll{overflow-x:auto}.dl-cdn-table{width:100%;border-collapse:collapse;margin:4px 0 18px;font-size:.88rem}.dl-cdn-table th,.dl-cdn-table td{border:1px solid var(--border);padding:9px 12px;text-align:left;white-space:nowrap}.dl-cdn-table th{background:var(--bg-soft);font-weight:700;color:var(--fg-strong)}.dl-cdn-table code{font-family:var(--mono);font-size:.85em}.dl-facts{margin:0 0 10px;padding-left:22px;color:var(--fg)}.dl-facts li{margin-bottom:8px;line-height:1.55}.dl-cross{margin:30px 0 6px;padding:14px 18px;border:1px dashed var(--border-strong);border-radius:12px;color:var(--muted);font-size:.95rem}.home-promo{text-align:center;margin:46px auto 8px;padding:28px 24px;border:1px solid var(--border);border-radius:16px;background:var(--bg-soft);max-width:760px}.home-promo h2{margin:0 0 6px;font-size:1.5rem;color:var(--fg-strong);letter-spacing:-.01em}.home-promo p{margin:0 auto 18px;color:var(--muted);max-width:540px}.badge{display:inline-block;font-size:.7rem;font-weight:700;padding:3px 9px;border-radius:20px;letter-spacing:.02em;white-space:nowrap}.badge-ok{color:#166534;background:#dcfce7;border:1px solid #bbf7d0}.badge-warn{color:#92400e;background:#fef3c7;border:1px solid #fde68a}.badge-dead{color:#991b1b;background:#fee2e2;border:1px solid #fecaca}:root[data-theme=dark] .badge-ok{color:#86efac;background:#052e16;border-color:#14532d}:root[data-theme=dark] .badge-warn{color:#fcd34d;background:#2a1e05;border-color:#46411d}:root[data-theme=dark] .badge-dead{color:#fca5a5;background:#2a0a0a;border-color:#5a1a1a}.dl-legend{display:flex;flex-wrap:wrap;gap:8px 20px;margin:0 0 12px;font-size:.85rem;color:var(--muted)}.dl-legend .badge{margin-right:6px}.dl-year{border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:12px;background:var(--bg)}.dl-year-head{display:flex;align-items:center;gap:12px}.dl-year-head h2{font-size:1.18rem;margin:0;color:var(--fg-strong)}.dl-year-note{color:var(--muted);font-size:.88rem;margin:8px 0 0}.dl-actions{margin-top:12px}.dl-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:9px;background:var(--accent);color:#fff;border:1px solid var(--accent);font-weight:650;font-size:.9rem}.dl-btn:hover{background:var(--accent-strong);color:#fff;text-decoration:none}.rel-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.rel{display:inline-flex;flex-direction:column;align-items:center;min-width:58px;padding:6px 10px;border:1px solid var(--border);border-radius:9px;background:var(--bg-soft);line-height:1.2}.rel:hover{border-color:var(--accent);background:var(--accent-soft);text-decoration:none}.rel-r{font-weight:700;font-size:.88rem;color:var(--accent-strong)}.rel-d{font-size:.68rem;color:var(--muted);margin-top:2px;white-space:nowrap}.dl-lookup-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:20px 0 6px;padding:15px 18px;border:1px solid var(--accent);border-radius:12px;background:var(--accent-soft);color:var(--fg)}.dl-lookup-cta:hover{text-decoration:none;box-shadow:var(--shadow)}.dl-lookup-cta .ic{font-size:1.25rem;line-height:1}.dl-lookup-cta .go{margin-left:auto;color:var(--accent-strong);font-weight:700;white-space:nowrap}.qb-tool{max-width:620px;margin:0 auto;padding:6px 20px 48px}.qb-tool .crumbs{margin-bottom:6px}.qb-tool-head{text-align:center;padding:24px 0 22px}.qb-tool-head h1{font-size:2.05rem;line-height:1.12;letter-spacing:-.02em;margin:0 0 12px;color:var(--fg-strong)}.qb-tool-head p{color:var(--muted);margin:0 auto;max-width:470px;line-height:1.6}.qb-panel{padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--bg);box-shadow:var(--shadow)}.qb-lookup label{display:block;font-weight:650;color:var(--fg-strong);margin-bottom:8px;font-size:.92rem}.qb-row{display:flex;gap:10px;flex-wrap:wrap}.qb-row input{flex:1;min-width:0;padding:13px 14px;border:1px solid var(--border-strong);border-radius:11px;background:var(--bg);color:var(--fg);font-size:1.15rem;font-family:var(--mono);letter-spacing:.18em;text-align:center}.qb-row input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}.qb-row .btn{white-space:nowrap}.qb-tool-foot{text-align:center;color:var(--muted);font-size:.92rem;margin:22px 0 0}.qb-result{margin-top:16px}.qb-result:empty{display:none}.qb-card{border:1px solid var(--border);border-radius:12px;padding:16px 18px;background:var(--bg-soft)}.qb-card.qb-ok{border-left:3px solid #22c55e}.qb-card.qb-warn{border-left:3px solid var(--accent)}.qb-found{font-size:1.05rem;margin-bottom:12px;color:var(--fg-strong)}.qb-vert{color:var(--muted);font-weight:400}.qb-note{margin:12px 0 0;font-size:.82rem;color:var(--muted)}@media(max-width:520px){.dl-hero h1{font-size:1.7rem}.dl-hero p{font-size:1rem}.dl-btn{width:100%;justify-content:center}}