:root{--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"Fira Code", monospace;--bg-main:#f8fafc;--bg-surface:#fff;--bg-card:#fff;--bg-code:#f1f5f9;--border-color:#e2e8f0;--border-focus:#0284c7;--text-main:#0f172a;--text-muted:#475569;--text-dim:#94a3b8;--primary:#0284c7;--primary-glow:#0284c726;--primary-hover:#0369a1;--emerald:#059669;--violet:#7c3aed;--amber:#d97706;--rose:#dc2626;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--shadow-card:0 4px 20px -2px #0f172a0f, 0 2px 6px -1px #0f172a0a;--shadow-hover:0 10px 25px -5px #0f172a1a, 0 8px 10px -6px #0f172a0d}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;background-image:radial-gradient(#e2e8f0 1px,#0000 1px);background-size:24px 24px;min-height:100vh;line-height:1.6;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.container{width:100%;max-width:1280px;margin-left:auto;margin-right:auto;padding-left:1.25rem;padding-right:1.25rem}@media (width<=640px){.container{padding-left:1rem;padding-right:1rem}}h1{color:var(--text-main);letter-spacing:-.02em;font-size:1.85rem;font-weight:800;line-height:1.25}@media (width<=640px){h1{font-size:1.35rem}}h2{color:var(--text-main);font-size:1.25rem;font-weight:700}h3{color:var(--text-main);font-size:1.1rem;font-weight:700}.mono{font-family:var(--font-mono)}.btn{border-radius:var(--radius-md);cursor:pointer;touch-action:manipulation;border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;min-height:44px;padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s 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var(--border-color);border-radius:var(--radius-md);width:100%;min-height:44px;color:var(--text-main);background:#fff;outline:none;padding:.65rem 1rem;font-size:.95rem;transition:all .2s}@media (width<=768px){.form-input{font-size:16px}}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}input[type=range]{-webkit-appearance:none;cursor:pointer;touch-action:none;background:#e2e8f0;border-radius:4px;outline:none;width:100%;height:8px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;cursor:pointer;background:#0284c7;border-radius:50%;width:22px;height:22px;box-shadow:0 2px 8px #0284c766}.badge{border-radius:var(--radius-full);align-items:center;gap:.35rem;padding:.25rem .65rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-cyan{color:#0369a1;background:#f0f9ff;border:1px solid #bae6fd}.badge-emerald{color:#065f46;background:#ecfdf5;border:1px solid #a7f3d0}.badge-violet{color:#6d28d9;background:#f5f3ff;border:1px solid #ddd6fe}.ad-slot-container{border-radius:var(--radius-md);text-align:center;background:#f8fafc;border:1.5px dashed #cbd5e1;margin:1.25rem 0;padding:.65rem}.ad-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:.35rem;font-size:.65rem;font-weight:700}.faq-item{border-bottom:1px solid var(--border-color);padding:1rem 0}.faq-question{width:100%;color:var(--text-main);text-align:left;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;gap:.75rem;font-size:.975rem;font-weight:700;display:flex}.faq-answer{color:var(--text-muted);margin-top:.65rem;font-size:.9rem;line-height:1.6}.grid-2{grid-template-columns:1fr 1fr;gap:1.25rem;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:1.25rem;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:1.25rem;display:grid}@media (width<=960px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;gap:1rem}}