:root{--primary:#1976D2;--primary-dark:#1565C0;--primary-light:#42A5F5;--secondary:#424242;--accent:#4CAF50;--bg:#FAFAFA;--surface:#FFFFFF;--surface-variant:#F5F5F5;--text:#212121;--text-secondary:#757575;--border:#E0E0E0;--shadow:0 2px 8px rgba(0,0,0,0.08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.container{max-width:1120px;margin:0 auto;padding:0 24px}nav{position:sticky;top:0;background:rgba(255,255,255,0.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:10px 0;z-index:100}nav .container{display:flex;justify-content:space-between;align-items:center}.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}.nav-brand svg{width:32px;height:32px}.nav-brand span{font-size:1.25rem;font-weight:700;color:var(--primary)}.nav-links{display:flex;gap:28px;align-items:center}.nav-links a{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.9rem;transition:color .2s}.nav-links a:hover{color:var(--primary)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;border-radius:8px;text-decoration:none;font-weight:600;font-size:.95rem;transition:all .2s;cursor:pointer;border:none}.btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(25,118,210,.3)}.btn-primary{background:var(--primary);color:#fff}.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn-accent{background:var(--accent);color:#fff}.hero{text-align:center;padding:80px 24px 60px;background:linear-gradient(180deg,var(--bg) 0%,var(--surface) 100%)}.hero-icon{width:80px;height:80px;margin:0 auto 24px;background:var(--primary);border-radius:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(25,118,210,.25)}.hero-icon svg{width:44px;height:44px;fill:#fff}.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;margin-bottom:12px;color:var(--text)}.hero .subtitle{font-size:1.3rem;color:var(--text-secondary);margin-bottom:8px}.hero .tagline{font-size:1rem;color:var(--text-secondary);max-width:600px;margin:0 auto 32px}.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.version-badge{display:inline-block;background:var(--accent);color:#fff;padding:4px 14px;border-radius:20px;font-size:.8rem;font-weight:600;margin-top:8px}section{padding:60px 24px}section:nth-child(odd){background:var(--bg)}section:nth-child(even){background:var(--surface-variant)}h2{text-align:center;font-size:1.8rem;font-weight:700;margin-bottom:40px;color:var(--text)}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.feature-card{background:var(--surface);border-radius:12px;padding:28px;border:1px solid var(--border);transition:box-shadow .2s,transform .2s}.feature-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.feature-card .icon{width:48px;height:48px;border-radius:12px;background:rgba(25,118,210,.1);display:flex;align-items:center;justify-content:center;margin-bottom:16px}.feature-card .icon svg{width:24px;height:24px;fill:var(--primary)}.feature-card h3{font-size:1.1rem;margin-bottom:8px;color:var(--text)}.feature-card p{color:var(--text-secondary);font-size:.95rem}.changelog{max-width:700px;margin:0 auto}.changelog-item{display:flex;gap:16px;padding:12px 0;border-bottom:1px solid var(--border)}.changelog-item:last-child{border-bottom:none}.changelog-item .badge{min-width:80px;padding:4px 12px;border-radius:6px;font-size:.75rem;font-weight:600;text-align:center;white-space:nowrap}.badge-new{background:rgba(76,175,80,.12);color:#2E7D32}.badge-feature{background:rgba(25,118,210,.12);color:var(--primary)}.badge-security{background:rgba(255,82,82,.12);color:#C62828}.badge-fix{background:rgba(255,193,7,.12);color:#F57F17}.changelog-item .text{color:var(--text-secondary);font-size:.95rem}.install-methods{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;max-width:900px;margin:0 auto}.install-card{background:var(--surface);border-radius:12px;padding:28px;border:1px solid var(--border)}.install-card h3{font-size:1.1rem;margin-bottom:8px;color:var(--text)}.install-card p{color:var(--text-secondary);font-size:.9rem;margin-bottom:16px}.install-code{background:#1A1A2E;border-radius:8px;padding:16px 20px;font-family:'SF Mono',Monaco,'Cascadia Code',monospace;font-size:.85rem;color:#4CAF50;text-align:left;margin:12px 0;cursor:pointer;position:relative;overflow-x:auto}.install-code:hover{background:#12121F}.install-code .copy-hint{position:absolute;top:8px;right:12px;font-size:.7rem;color:#94A3B8;opacity:0;transition:opacity .2s}.install-code:hover .copy-hint{opacity:1}.install-card .requirements{list-style:none;padding:0;margin:16px 0 0}.install-card .requirements li{padding:6px 0;color:var(--text-secondary);font-size:.9rem}.install-card .requirements li::before{content:"✓ ";color:var(--accent)}.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;max-width:900px;margin:0 auto}.pricing-card{background:var(--surface);border-radius:12px;padding:32px;text-align:center;border:2px solid var(--border);transition:box-shadow .2s,transform .2s}.pricing-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.pricing-card.featured{border-color:var(--primary);background:linear-gradient(180deg,rgba(25,118,210,.04) 0%,var(--surface) 100%)}.pricing-card h3{font-size:1.4rem;margin-bottom:4px}.pricing-card .price{font-size:2.2rem;font-weight:800;margin:16px 0;color:var(--primary)}.pricing-card .price small{font-size:.4em;color:var(--text-secondary);font-weight:400}.pricing-card ul{list-style:none;text-align:left;margin:20px 0}.pricing-card li{padding:8px 0;color:var(--text-secondary);font-size:.9rem}.pricing-card li::before{content:"✓ ";color:var(--accent);font-weight:700}.footer{background:var(--surface);border-top:1px solid var(--border);padding:40px 24px;text-align:center;color:var(--text-secondary);font-size:.85rem}.footer a{color:var(--primary);text-decoration:none}.footer a:hover{text-decoration:underline}.changelog-version{max-width:700px;margin:0 auto 40px}.changelog-version:last-child{margin-bottom:0}.changelog-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:1.2rem;font-weight:700;color:var(--text)}.changelog-date{font-size:.85rem;font-weight:400;color:var(--text-secondary)}.changelog-version .changelog{margin:0;padding:0}.changelog-version .changelog-item{padding:10px 0}.badge-infra{background:rgba(156,39,176,.12);color:#7B1FA2}@media(max-width:768px){.nav-links{display:none}.hero{padding:48px 16px 32px}.hero h1{font-size:1.8rem}section{padding:40px 16px}.features,.install-methods,.pricing{grid-template-columns:1fr}.changelog-item{flex-direction:column;gap:8px}}