:root{--bg: #0b0e14;--bg-2: #0f172a;--bg-3: #1e293b;--surface: rgba(255, 255, 255, .04);--surface-2: rgba(255, 255, 255, .06);--border: rgba(255, 255, 255, .09);--border-strong: rgba(255, 255, 255, .16);--text: #f8fafc;--text-dim: #94a3b8;--text-faint: #64748b;--amber: #fbbf24;--amber-2: #f59e0b;--amber-3: #fcd34d;--glow: rgba(251, 191, 36, .35);--green: #34d399;--red: #f87171;--blue: #38bdf8;--radius: 16px;--radius-sm: 10px;--shadow: 0 20px 50px -20px rgba(0, 0, 0, .7);--header-h: 64px;--maxw: 1200px;--font: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;transition:background .3s ease,color .3s ease}a{color:inherit;text-decoration:none}.site-header{position:fixed;inset:0 0 auto;height:var(--header-h);z-index:50;background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--border)}.header-inner{max-width:var(--maxw);height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand-logo{filter:drop-shadow(0 0 10px var(--glow))}.brand-name{font-size:18px;letter-spacing:.3px}.brand-name em{font-style:normal;color:var(--amber);font-weight:500}.top-nav{display:flex;gap:4px;margin-left:12px}.nav-link{padding:8px 14px;border-radius:999px;color:var(--text-dim);font-size:14px;font-weight:500;transition:color .2s,background .2s}.nav-link:hover{color:var(--text);background:var(--surface)}.nav-link.active{color:var(--amber);background:color-mix(in srgb,var(--amber) 12%,transparent)}.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}.gh-link{font-size:13px;color:var(--text-dim);padding:8px 12px;border:1px solid var(--border);border-radius:999px;transition:.2s}.gh-link:hover{color:var(--text);border-color:var(--border-strong)}.menu-toggle{display:none;background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:10px;width:40px;height:40px;font-size:18px;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:transform .18s ease,box-shadow .25s ease,background .2s}.btn-primary{background:linear-gradient(135deg,var(--amber-3),var(--amber-2));color:#1a1205;box-shadow:0 10px 30px -10px var(--glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px -10px var(--glow)}.btn-ghost{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}.hero{position:relative;padding:calc(var(--header-h) + 80px) 24px 80px;overflow:hidden}.hero-glow{position:absolute;top:-180px;left:50%;transform:translate(-50%);width:900px;height:600px;background:radial-gradient(circle at center,var(--glow),transparent 60%);filter:blur(40px);opacity:.55;pointer-events:none}.hero-inner{position:relative;max-width:880px;margin:0 auto;text-align:center}.hero-badge{display:inline-block;padding:6px 16px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--amber);font-size:13px;font-weight:500;margin-bottom:24px;animation:fadeUp .6s ease both}.hero-title{font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:900;margin:0 0 20px;letter-spacing:-.5px;animation:fadeUp .7s ease both}.hero-title{background:linear-gradient(180deg,#fff,var(--text-dim));-webkit-background-clip:text;background-clip:text;color:transparent}.hero-sub{font-size:18px;color:var(--text-dim);max-width:640px;margin:0 auto 32px;animation:fadeUp .8s ease both}.hero-actions{display:flex;gap:14px;justify-content:center;margin-bottom:48px;animation:fadeUp .9s ease both}.hero-code{max-width:620px;margin:0 auto;text-align:left;animation:fadeUp 1s ease both}.section{max-width:var(--maxw);margin:0 auto;padding:64px 24px}.section-head{text-align:center;margin-bottom:44px}.section-kicker{color:var(--amber);font-weight:600;font-size:14px;letter-spacing:2px;text-transform:uppercase}.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;margin:10px 0 0}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .25s ease,box-shadow .3s ease,border-color .3s ease}.feature-card:hover{transform:translateY(-6px);border-color:color-mix(in srgb,var(--amber) 45%,transparent);box-shadow:0 20px 40px -20px var(--glow)}.feature-icon{font-size:30px;width:56px;height:56px;display:grid;place-items:center;border-radius:14px;background:color-mix(in srgb,var(--amber) 14%,transparent);margin-bottom:16px}.feature-title{font-size:18px;font-weight:700;margin:0 0 8px}.feature-desc{color:var(--text-dim);font-size:14.5px;margin:0}.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.why-item{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px}.why-check{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--green) 18%,transparent);color:var(--green);font-weight:700}.why-item h4{margin:0 0 4px;font-size:16px}.why-item p{margin:0;color:var(--text-dim);font-size:14px}.resource-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.resource-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.25s}.resource-card:hover{transform:translateY(-4px);border-color:var(--amber);box-shadow:0 18px 36px -20px var(--glow)}.resource-card .r-icon{font-size:26px}.resource-card h4{margin:14px 0 6px;font-size:17px}.resource-card p{margin:0;color:var(--text-dim);font-size:14px}.doc-shell{max-width:var(--maxw);margin:0 auto;padding:calc(var(--header-h) + 28px) 24px 60px;display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start}.sidebar{position:sticky;top:calc(var(--header-h) + 24px)}.sidebar-nav{display:flex;flex-direction:column;gap:2px}.nav-group{margin-bottom:10px}.nav-group-title{font-size:12px;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-faint);padding:8px 12px;font-weight:600}.nav-group-items{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--border);margin-left:14px}.side-link{padding:8px 14px;border-radius:8px;color:var(--text-dim);font-size:14.5px;transition:.18s}.side-link:hover{color:var(--text);background:var(--surface)}.side-link.active{color:var(--amber);background:color-mix(in srgb,var(--amber) 13%,transparent);font-weight:600}.doc-main{min-width:0}.doc-article{max-width:820px}.doc-article h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin:0 0 8px;letter-spacing:-.5px}.doc-article .lead{color:var(--text-dim);font-size:17px;margin:0 0 32px}.doc-article h2{font-size:24px;font-weight:700;margin:40px 0 14px;padding-top:8px;border-top:1px solid var(--border)}.doc-article h3{font-size:18px;font-weight:700;margin:28px 0 10px}.doc-article p{color:var(--text-dim);margin:0 0 16px}.doc-article ul,.doc-article ol{color:var(--text-dim);padding-left:22px;margin:0 0 16px}.doc-article li{margin:6px 0}.doc-article a.inline{color:var(--amber);border-bottom:1px solid color-mix(in srgb,var(--amber) 40%,transparent)}.doc-article code:not(pre code){font-family:var(--mono);font-size:.88em;background:var(--surface-2);border:1px solid var(--border);padding:1px 6px;border-radius:6px;color:var(--amber-3)}.code-block{background:#0a0d14;border:1px solid rgba(255,255,255,.1);border-radius:12px;overflow:hidden;margin:18px 0 24px;box-shadow:var(--shadow)}.code-head{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:#ffffff0a;border-bottom:1px solid rgba(255,255,255,.08)}.code-tag{font-family:var(--mono);font-size:12.5px;color:#94a3b8}.copy-btn{font-size:12.5px;color:#cbd5e1;background:#ffffff0f;border:1px solid rgba(255,255,255,.12);border-radius:7px;padding:4px 12px;cursor:pointer;transition:.18s}.copy-btn:hover{color:#fff;border-color:var(--amber)}.code-pre{margin:0;padding:16px 18px;overflow-x:auto}.code-pre code{font-family:var(--mono);font-size:13.5px;line-height:1.65;color:#e2e8f0;white-space:pre}.callout{border-radius:12px;padding:14px 18px;margin:18px 0;border:1px solid var(--border);background:var(--surface)}.callout-info{border-left:3px solid var(--blue)}.callout-warn{border-left:3px solid var(--amber)}.callout-title{font-weight:700;margin-bottom:4px}.callout-body{color:var(--text-dim);font-size:14.5px}.callout-body p{margin:0}.site-footer{border-top:1px solid var(--border);background:var(--bg-2);margin-top:40px}.footer-inner{max-width:var(--maxw);margin:0 auto;padding:40px 24px 24px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}.footer-brand{font-weight:700;font-size:16px;margin:0 0 6px}.footer-muted{color:var(--text-faint);font-size:13.5px;margin:0;max-width:460px}.footer-links{display:flex;gap:18px;flex-wrap:wrap}.footer-links a{color:var(--text-dim);font-size:14px;transition:.2s}.footer-links a:hover{color:var(--amber)}.footer-copy{text-align:center;color:var(--text-faint);font-size:12.5px;padding:16px 24px 28px;margin:0;border-top:1px solid var(--border)}.notfound{max-width:640px;margin:0 auto;padding:calc(var(--header-h) + 120px) 24px 120px;text-align:center}.notfound h1{font-size:96px;margin:0;background:linear-gradient(135deg,var(--amber-3),var(--amber-2));-webkit-background-clip:text;background-clip:text;color:transparent}.notfound p{color:var(--text-dim);font-size:18px;margin:8px 0 28px}@keyframes fadeUp{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media(max-width:1080px){.feature-grid,.resource-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:860px){.top-nav{display:none}.menu-toggle{display:grid;place-items:center}.gh-link{display:none}.doc-shell{grid-template-columns:1fr;gap:0}.sidebar{position:fixed;top:var(--header-h);left:0;bottom:0;width:280px;background:var(--bg-2);border-right:1px solid var(--border);padding:20px;z-index:40;transform:translate(-100%);transition:transform .28s ease;overflow-y:auto}body.nav-open .sidebar{transform:translate(0)}body.nav-open:after{content:"";position:fixed;inset:var(--header-h) 0 0 0;background:#00000080;z-index:39}.why-grid{grid-template-columns:1fr}}@media(max-width:560px){.feature-grid,.resource-grid{grid-template-columns:1fr}.hero-actions{flex-direction:column;align-items:center}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}