:root{--bg: #ffffff;--surface: #fafafa;--surface-2: #eef0f3;--border: #e5e5e5;--text: #1f1f1f;--text-muted: #a8a8a8;--text-subtle: #8a8a8a;--primary: #fa520f;--primary-hover: #cc3a05;--on-primary: #ffffff;--success: #1a7f37;--danger: #d1242f;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--shadow-lg: 0 12px 32px rgba(0,0,0,.16);--maxw: 1200px;--nav-h: 64px;--ease: cubic-bezier(.16, 1, .3, 1);--tint-1: color-mix(in srgb, var(--primary) 8%, transparent);--tint-2: color-mix(in srgb, var(--primary) 14%, transparent);--tint-3: color-mix(in srgb, var(--primary) 22%, transparent);--hairline: color-mix(in srgb, var(--border) 80%, transparent)}:root[data-theme=dark]{--bg: #141414;--surface: #1c1c1c;--surface-2: #262626;--border: #333;--text: #e8e8e8;--text-muted: #999;--text-subtle: #777;--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 12px 32px rgba(0,0,0,.5)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}img,svg{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}h1,h2,h3,h4{line-height:1.12;letter-spacing:-.02em;margin:0;font-weight:700}p{margin:0}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--radius-md);font-weight:600;font-size:15px;line-height:1;border:1px solid transparent;transition:transform .15s var(--ease),background .15s,border-color .15s,color .15s,box-shadow .2s;white-space:nowrap}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--primary);color:var(--on-primary)}.btn-primary:hover{background:var(--primary-hover);box-shadow:0 8px 24px var(--tint-3)}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}.btn-lg{padding:14px 26px;font-size:16px}.btn-sm{padding:8px 14px;font-size:14px}.btn .arr{transition:transform .2s var(--ease)}.btn:hover .arr{transform:translate(3px)}.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s,background .2s}.nav.scrolled{border-bottom-color:var(--hairline)}.nav-inner{height:100%;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.02em}.brand .logo{width:28px;height:28px;flex:none}.brand b{font-weight:800}.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}.nav-links a{padding:8px 12px;border-radius:var(--radius-sm);font-size:14.5px;font-weight:500;color:var(--text-muted);transition:color .15s,background .15s}.nav-links a:hover,.nav-links a.active{color:var(--text);background:var(--tint-1)}.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}.nav-rss{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:var(--radius-sm);font-size:14.5px;font-weight:500;color:var(--text-muted);transition:color .15s,background .15s}.nav-rss:hover{color:var(--primary);background:var(--tint-1)}.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;color:var(--text)}.section{padding:80px 0;position:relative}.section-sm{padding:48px 0}.section.alt{background:var(--surface)}.section-head{max-width:760px;margin-bottom:48px}.section-head.center{margin-inline:auto;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--primary);margin-bottom:16px}.eyebrow:before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}.section-head.center .eyebrow{justify-content:center}.section-head h2{font-size:clamp(28px,4vw,40px)}.section-head .lead{margin-top:16px;font-size:clamp(16px,1.6vw,18px);color:var(--text-muted)}.hero{position:relative;padding:clamp(64px,10vh,110px) 0 72px;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(60% 50% at 82% 8%,var(--tint-2),transparent 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h1{font-size:clamp(34px,5.6vw,62px);font-weight:800;letter-spacing:-.035em}.hero h1 .accent{color:var(--primary)}.hero .subtitle{margin-top:22px;font-size:clamp(16px,2vw,20px);color:var(--text-muted);max-width:660px}.hero-badges{margin-top:26px;display:flex;gap:10px;flex-wrap:wrap}.hero-badges span{padding:7px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-size:13.5px;font-weight:600;color:var(--text)}.hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}.grid{display:grid;gap:22px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;transition:transform .25s var(--ease),border-color .2s,box-shadow .25s;position:relative;overflow:hidden}.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--primary) 40%,var(--border));box-shadow:var(--shadow-md)}.card h3{font-size:18px;margin-bottom:8px}.card p{color:var(--text-muted);font-size:14.5px}.card .ico{width:44px;height:44px;border-radius:var(--radius-md);display:grid;place-items:center;background:var(--tint-2);color:var(--primary);margin-bottom:16px}.card .ico svg{width:22px;height:22px}.module-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;transition:transform .25s var(--ease),border-color .2s,box-shadow .25s;position:relative;overflow:hidden}.module-card:after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),transparent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}.module-card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--primary) 45%,var(--border));box-shadow:var(--shadow-lg)}.module-card:hover:after{transform:scaleX(1)}.module-card 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code{font-family:var(--font-mono);font-size:.88em;background:var(--surface-2);padding:2px 6px;border-radius:4px}.prose pre{padding:18px;border-radius:var(--radius-lg);overflow-x:auto;font-size:13.5px;line-height:1.6}.prose pre code{background:none;padding:0}.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}.prose th,.prose td{padding:10px 14px;border:1px solid var(--border);text-align:left}.prose th{background:var(--surface);font-weight:700}.prose tr:nth-child(2n) td{background:var(--surface)}.prose img{border-radius:var(--radius-lg);margin:22px 0}.prose hr{border:none;border-top:1px solid var(--hairline);margin:36px 0}.prose a{color:var(--primary)}.prose a:hover{text-decoration:underline}.up{color:#d1242f;font-weight:600}.down{color:#1a7f37;font-weight:600}.toc{position:sticky;top:calc(var(--nav-h) + 24px);max-height:calc(100vh - var(--nav-h) - 48px);overflow-y:auto;font-size:13.5px}.toc 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a:hover{color:var(--primary)}.tl-item p{font-size:14px;color:var(--text-muted)}.disclaimer{padding:20px 0;border-top:1px solid var(--hairline);font-size:12.5px;color:var(--text-subtle);text-align:center;line-height:1.7}footer{padding:36px 0;border-top:1px solid var(--hairline);background:var(--surface)}.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.footer-brand{font-weight:700;letter-spacing:-.02em}.footer-copy{color:var(--text-subtle);font-size:13px}.footer-links{display:flex;gap:18px;font-size:13px;color:var(--text-subtle)}.footer-links a:hover{color:var(--primary)}.private-banner{display:flex;align-items:center;gap:10px;padding:10px 16px;margin-bottom:28px;border-radius:var(--radius-md);background:var(--tint-1);border:1px solid color-mix(in srgb,var(--primary) 25%,transparent);font-size:13px;color:var(--primary);font-weight:600}.private-banner svg{width:16px;height:16px;flex:none}@media(max-width:1020px){.post-wrap{grid-template-columns:1fr}.toc{display:none}}@media(max-width:980px){.grid-3,.grid-2{grid-template-columns:1fr}.section{padding:60px 0}.nav-links{display:none;position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--border);padding:8px 16px 16px;box-shadow:var(--shadow-md)}.nav-links.open{display:flex}.nav-links a{padding:12px 14px;font-size:15px}.nav-toggle{display:inline-flex}.nav-rss .rss-label{display:none}.post-item{flex-wrap:wrap}}@media(max-width:560px){.grid-2{grid-template-columns:1fr}.post-item .date{display:none}}