:root{--color-fg:#0a0a0b;--color-muted:#71717a;--color-faint:#a1a1aa;--color-bg:#ffffff;--color-bg-card:#f4f4f5;--color-bg-hover:#fafafa;--color-border:#e4e4e7;--color-brand:#0052ff;--color-brand-light:#b8c8ff;--color-brand-dark:#1e40af;--color-brand-alpha:rgba(0,82,255,0.1);--color-brand-hover:#0044cc;--color-success:#16a34a;--color-success-light:#dcfce7;--color-warning:#ca8a04;--color-warning-light:#fef9c3;--color-error:#dc2626;--color-error-light:#fee2e2;--color-overlay:rgba(0,0,0,0.5);--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-mono:"SF Mono",Monaco,"Cascadia Code","Roboto Mono",Consolas,"Courier New",monospace;--sp-xs:4px;--sp-sm:8px;--sp-md:16px;--sp-lg:24px;--sp-xl:32px;--sp-2xl:48px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px rgba(0,0,0,0.1);--shadow-xl:0 20px 25px rgba(0,0,0,0.15);--duration-fast:150ms;--duration-normal:300ms;--duration-slow:500ms;--ease-out:cubic-bezier(0.215,0.61,0.355,1);--transition-base:all var(--duration-normal) var(--ease-out);--max-w-sm:640px;--max-w-md:768px;--max-w-lg:1024px;--max-w-xl:1280px}[data-theme="dark"]{--color-fg:#f9fafb;--color-muted:#9ca3af;--color-faint:#6b7280;--color-bg:#0a0a0b;--color-bg-card:#1f2937;--color-bg-hover:#111827;--color-border:#374151;--color-brand:#3b82f6;--color-brand-light:#1d4ed8;--color-brand-dark:#60a5fa;--color-brand-alpha:rgba(59,130,246,0.1);--color-brand-hover:#2563eb;--color-success:#22c55e;--color-success-light:#14532d;--color-warning:#eab308;--color-warning-light:#713f12;--color-error:#ef4444;--color-error-light:#7f1d1d}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--color-fg);background:var(--color-bg);min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:var(--max-w-sm);margin:0 auto;padding:0 var(--sp-md)}nav{padding:var(--sp-md) 0}nav.scrolled{padding:var(--sp-sm) 0;background:var(--color-bg-card);border-bottom:1px solid var(--color-border);position:sticky;top:0}#main-nav{background:var(--color-bg)}.brand{display:flex;align-items:center;gap:var(--sp-sm);text-decoration:none;color:var(--color-fg);transition:var(--transition-base)}.brand:hover{color:var(--color-brand)}.brand img{height:48px;width:auto}.brand-text{font-size:1.5rem;font-weight:700;color:var(--color-fg)}.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:var(--sp-xs)}.hamburger span{width:24px;height:2px;background:var(--color-fg);transition:var(--transition-base)}.nav-links{display:flex;gap:var(--sp-lg);align-items:center}.nav-dropdown{position:relative}.nav-dropdown-trigger{display:flex;align-items:center;gap:var(--sp-xs);background:none;border:none;cursor:pointer;color:var(--color-fg);font-size:0.9375rem;padding:var(--sp-xs) var(--sp-sm);border-radius:var(--radius-sm);transition:var(--transition-base)}.nav-dropdown-trigger:hover{color:var(--color-brand)}.dropdown-arrow{transition:transform var(--duration-normal)}.dropdown-menu{position:absolute;top:100%;left:0;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--sp-xs);min-width:200px;box-shadow:var(--shadow-lg);z-index:100;opacity:0;transform:translateY(-8px);pointer-events:none;transition:var(--transition-base)}.dropdown-menu.visible{opacity:1;transform:translateY(4px);pointer-events:auto}.dropdown-item{display:flex;align-items:center;gap:var(--sp-sm);padding:var(--sp-sm) var(--sp-md);color:var(--color-fg);text-decoration:none;border-radius:var(--radius-sm);transition:var(--transition-base);white-space:nowrap}.dropdown-item:hover{background:var(--color-bg-hover);color:var(--color-brand)}.btn{display:inline-flex;align-items:center;gap:var(--sp-sm);padding:var(--sp-sm) var(--sp-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-card);color:var(--color-fg);font-size:0.9375rem;font-weight:500;text-decoration:none;cursor:pointer;transition:var(--transition-base);white-space:nowrap}.btn:hover{background:var(--color-bg-hover);border-color:var(--color-brand);color:var(--color-brand)}.btn-primary{background:var(--color-brand);color:white;border-color:var(--color-brand)}.btn-primary:hover{background:var(--color-brand-hover);border-color:var(--color-brand-hover);color:white}.btn-secondary{background:var(--color-bg-card);color:var(--color-fg);border-color:var(--color-border)}.btn-secondary:hover{background:var(--color-bg-hover);border-color:var(--color-brand);color:var(--color-brand)}.btn-lg{padding:var(--sp-md) var(--sp-lg);font-size:1rem}.btn-icon{width:20px;height:20px;flex-shrink:0}.beta-notice{display:flex;align-items:center;justify-content:center;gap:var(--sp-sm);padding:var(--sp-sm) var(--sp-md);background:var(--color-warning-light);border-bottom:1px solid var(--color-warning);font-size:0.8125rem;color:var(--color-warning);text-align:center}.hero-section{padding:var(--sp-2xl) 0;background:linear-gradient(135deg,var(--color-bg) 0%,var(--color-brand-light) 100%)}.hero-container{max-width:var(--max-w-xl);margin:0 auto;padding:0 var(--sp-lg);display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-xl);align-items:center}.hero-content{opacity:0;animation:fadeIn var(--duration-slow) var(--ease-out) forwards}.hero-badge{display:inline-flex;align-items:center;gap:var(--sp-xs);padding:var(--sp-xs) var(--sp-sm);background:var(--color-brand);color:white;border-radius:var(--radius-full);font-size:0.875rem;font-weight:500;margin-bottom:var(--sp-md);box-shadow:var(--shadow-md)}.hero-badge-icon{font-size:1rem}.hero-title{margin-bottom:var(--sp-lg)}.hero-title-main{display:block;font-family:var(--font-mono);font-size:3.5rem;font-weight:700;color:var(--color-fg);margin-bottom:var(--sp-sm);letter-spacing:-0.02em;line-height:1.1}.hero-title-sub{display:block;font-size:1.5rem;font-weight:500;color:var(--color-muted);line-height:1.3}.hero-description{font-size:1.125rem;color:var(--color-muted);line-height:1.7;margin-bottom:var(--sp-xl);max-width:540px}.hero-cta{display:flex;gap:var(--sp-md);flex-wrap:wrap}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@media (max-width:960px){.hero-container{grid-template-columns:1fr;gap:var(--sp-lg)}}@media (max-width:600px){.hero-title-main{font-size:2.5rem}.hero-title-sub{font-size:1.25rem}.hero-cta{flex-direction:column;width:100%}.btn-lg{width:100%}}@media (max-width:480px){.hero-title-main{font-size:2rem}.hero-title-sub{font-size:1.125rem}}.hidden{display:none!important}