*{margin:0;padding:0;box-sizing:border-box}:root{--primary-bg:linear-gradient(45deg,transparent 25%,hsla(0,0%,100%,.02) 35%,rgba(190,180,255,.04) 45%,hsla(0,0%,100%,.03) 55%,transparent 65%),linear-gradient(135deg,#050515,#0b1426 15%,#1b2951 40%,#1f2b69 60%,#1a2440 80%,#0f1a35);--card-bg:hsla(0,0%,100%,.08);--card-hover-bg:rgba(139,192,255,.15);--text-primary:#e2e8f0;--text-secondary:rgba(226,232,240,.9);--text-muted:rgba(226,232,240,.7);--accent-color-1:#3b82f6;--accent-color-2:#8b92ff;--success-color:#10b981;--warning-color:#f59e0b;--transition:all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);--border-radius:12px;--backdrop-blur:blur(20px)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--primary-bg);color:var(--text-primary);min-height:100vh;position:relative;overflow-x:hidden;line-height:1.6}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(1px 1px at 15% 25%,#fff,transparent),radial-gradient(1px 1px at 85% 35%,hsla(0,0%,100%,.9),transparent),radial-gradient(1px 1px at 45% 15%,#fff,transparent),radial-gradient(1px 1px at 75% 85%,hsla(0,0%,100%,.8),transparent),radial-gradient(1px 1px at 25% 75%,#fff,transparent),radial-gradient(1px 1px at 65% 45%,hsla(0,0%,100%,.7),transparent),radial-gradient(1px 1px at 95% 15%,#fff,transparent),radial-gradient(1px 1px at 55% 95%,hsla(0,0%,100%,.8),transparent),radial-gradient(ellipse 300px 150px at 20% 30%,rgba(147,99,255,.08) 0,transparent 70%),radial-gradient(ellipse 250px 120px at 80% 70%,rgba(99,130,246,.06) 0,transparent 70%);background-size:100vw 100vh;z-index:-1}.container{max-width:1000px;margin:0 auto;padding:0 20px}.header{padding:20px 0;background:hsla(0,0%,100%,.05);backdrop-filter:var(--backdrop-blur);border-bottom:1px solid 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h1{font-size:clamp(2rem,4vw,3.5rem);font-weight:800;margin-bottom:20px;background:linear-gradient(135deg,#fff,var(--accent-color-1) 50%,var(--accent-color-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-title p{font-size:1.2rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.toc{background:var(--card-bg);border:1px solid hsla(0,0%,100%,.1);border-radius:var(--border-radius);padding:30px;margin-bottom:40px;backdrop-filter:var(--backdrop-blur)}.toc h2{font-size:1.5rem;margin-bottom:20px;color:var(--text-primary);display:flex;align-items:center;gap:10px}.toc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}.toc-item{background:hsla(0,0%,100%,.05);border-radius:8px;padding:16px;transition:var(--transition)}.toc-item:hover{background:hsla(0,0%,100%,.1);transform:translateY(-2px)}.toc-link{text-decoration:none;color:var(--text-primary);font-weight:500;display:flex;align-items:center;gap:8px}.toc-desc{font-size:.85rem;color:var(--text-muted);margin-top:8px}.faq-content{padding-bottom:80px}.faq-section{margin-bottom:60px}.faq-section h2{font-size:2rem;font-weight:700;margin-bottom:30px;color:var(--text-primary);display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:2px solid rgba(59,130,246,.3)}.faq-item{background:var(--card-bg);border:1px solid 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code{background:rgba(59,130,246,.1);color:#fff;padding:2px 6px;border-radius:4px;font-family:Courier New,monospace}.faq-code-block{background:rgba(0,0,0,.3);border:1px solid hsla(0,0%,100%,.1);border-radius:8px;padding:16px;margin:12px 0;overflow-x:auto}.faq-code-block code{background:none;color:#fff;padding:0;font-family:Courier New,monospace;font-size:14px;line-height:1.4}.faq-code-block pre{margin:0;white-space:pre;color:#fff}.faq-answer .highlight{background:rgba(59,130,246,.1);color:var(--accent-color-1);padding:2px 6px;border-radius:4px;font-weight:600}.step-list{counter-reset:a;list-style:none;padding-left:0}.step-list li{counter-increment:a;position:relative;padding-left:40px;margin-bottom:16px}.step-list li:before{content:counter(a);position:absolute;left:0;top:0;background:linear-gradient(135deg,var(--accent-color-1),var(--accent-color-2));color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:600}.platform-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:20px 0}.platform-card{background:hsla(0,0%,100%,.05);border:1px solid hsla(0,0%,100%,.1);border-radius:8px;padding:16px;text-align:center}.platform-icon{font-size:2rem;margin-bottom:8px}.platform-name{font-weight:600;color:var(--text-primary);margin-bottom:8px}.alert{background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.3);border-radius:8px;padding:16px;margin:20px 0;display:flex;align-items:flex-start;gap:12px}.alert-success{background:rgba(16,185,129,.1);border-color:rgba(16,185,129,.3)}.alert-warning{background:rgba(245,158,11,.1);border-color:rgba(245,158,11,.3)}.alert-icon{font-size:1.2rem;margin-top:2px}.back-to-top{position:fixed;bottom:30px;right:30px;background:linear-gradient(135deg,var(--accent-color-1),var(--accent-color-2));color:#fff;border:none;width:50px;height:50px;border-radius:50%;cursor:pointer;opacity:0;visibility:hidden;transition:var(--transition);display:flex;align-items:center;justify-content:center;font-size:1.2rem;z-index:1000}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(59,130,246,.4)}@media (max-width:768px){.header-content,.nav-links{justify-content:center}.nav-links{order:3;width:100%}.platform-grid,.toc-grid{grid-template-columns:1fr}.faq-question{font-size:1rem;padding:20px}}