*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#3b82f6;--primary-dark:#2563eb;--secondary:#06b6d4;--accent:#8b5cf6;--gradient:linear-gradient(135deg,#3b82f6,#06b6d4);--gradient-accent:linear-gradient(135deg,#8b5cf6,#06b6d4);--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-card:#1a1f35;--bg-card-hover:#222845;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#64748b;--border:#2a3050;--shadow:0 4px 24px rgba(0,0,0,0.3);--shadow-lg:0 8px 40px rgba(0,0,0,0.4);--radius:12px;--radius-lg:20px;--nav-height:72px;--transition:all 0.3s ease}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--secondary)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section-title{text-align:center;margin-bottom:60px}
.section-title h2{font-size:2.5rem;font-weight:700;margin-bottom:16px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-title p{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;border:none;transition:var(--transition);text-decoration:none}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 20px rgba(59,130,246,0.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(59,130,246,0.6);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 24px;font-size:0.9rem}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:var(--transition)}
.card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow)}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-height);z-index:1000;transition:var(--transition);display:flex;align-items:center}
.nav.scrolled{background:rgba(10,14,26,0.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:700;color:var(--text-primary)}
.nav-logo img{width:36px;height:36px}
.nav-logo span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-menu{display:flex;align-items:center;gap:8px;list-style:none}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:flex;align-items:center;gap:4px;padding:10px 16px;color:var(--text-primary);font-size:0.95rem;font-weight:500;border-radius:8px;transition:var(--transition)}
.nav-menu>li>a:hover,.nav-menu>li>a.active{color:var(--primary);background:rgba(59,130,246,0.1)}
.nav-menu>li>a .arrow{display:inline-block;transition:transform 0.3s;font-size:0.7rem}
.nav-menu>li:hover>a .arrow{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:0;min-width:200px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition)}
.nav-menu>li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:10px 16px;color:#333;font-size:0.9rem;border-radius:8px;transition:var(--transition)}
.dropdown a:hover{background:rgba(59,130,246,0.1);color:var(--primary)}
.nav-cta{margin-left:16px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:var(--text-primary);transition:var(--transition);border-radius:2px}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.hero{min-height:100vh;display:flex;align-items:center;padding-top:var(--nav-height);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(59,130,246,0.15),transparent 70%);border-radius:50%;pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(6,182,212,0.1),transparent 70%);border-radius:50%;pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content h1{font-size:3.2rem;font-weight:800;line-height:1.2;margin-bottom:20px}
.hero-content h1 .highlight{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content .subtitle{font-size:1.2rem;color:var(--text-secondary);margin-bottom:32px;line-height:1.8}
.hero-buttons{display:flex;gap:16px;margin-bottom:40px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px}
.hero-stat{text-align:center}
.hero-stat .number{font-size:2rem;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-stat .label{font-size:0.85rem;color:var(--text-muted);margin-top:4px}
.demo-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;position:relative;overflow:hidden}
.demo-container::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient)}
.demo-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.demo-dots{display:flex;gap:6px}
.demo-dots span{width:10px;height:10px;border-radius:50%;background:var(--text-muted)}
.demo-dots span:first-child{background:#ef4444}
.demo-dots span:nth-child(2){background:#f59e0b}
.demo-dots span:nth-child(3){background:#22c55e}
.demo-title{font-size:0.85rem;color:var(--text-muted)}
.demo-body{display:flex;flex-direction:column;gap:16px}
.demo-connect{display:flex;align-items:center;gap:16px}
.demo-connect-btn{width:64px;height:64px;border-radius:50%;background:var(--gradient);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);box-shadow:0 4px 20px rgba(59,130,246,0.4)}
.demo-connect-btn:hover{transform:scale(1.1)}
.demo-connect-btn.connected{background:linear-gradient(135deg,#22c55e,#06b6d4);box-shadow:0 4px 20px rgba(34,197,94,0.4)}
.demo-connect-btn svg{width:28px;height:28px;fill:#fff}
.demo-info{flex:1}
.demo-status{font-size:0.9rem;color:var(--text-secondary);margin-bottom:8px}
.demo-status.connected{color:#22c55e}
.demo-speed{display:flex;gap:24px}
.demo-speed-item{text-align:center}
.demo-speed-item .val{font-size:1.4rem;font-weight:700;color:var(--primary)}
.demo-speed-item .unit{font-size:0.75rem;color:var(--text-muted)}
.demo-nodes{display:flex;flex-direction:column;gap:8px}
.demo-node{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-secondary);border-radius:8px;cursor:pointer;transition:var(--transition);border:1px solid transparent}
.demo-node:hover,.demo-node.active{border-color:var(--primary);background:rgba(59,130,246,0.1)}
.demo-node-info{display:flex;align-items:center;gap:10px}
.demo-node-flag{font-size:1.2rem}
.demo-node-name{font-size:0.85rem;font-weight:500}
.demo-node-latency{font-size:0.8rem;color:var(--text-muted)}
.demo-node-latency.good{color:#22c55e}
.demo-node-latency.medium{color:#f59e0b}
.demo-toggles{display:flex;gap:12px;flex-wrap:wrap}
.demo-toggle{display:flex;align-items:center;gap:8px;padding:6px 14px;background:var(--bg-secondary);border-radius:20px;font-size:0.8rem;color:var(--text-secondary);cursor:pointer;transition:var(--transition);border:1px solid transparent}
.demo-toggle.active{border-color:var(--primary);color:var(--primary);background:rgba(59,130,246,0.1)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{text-align:center;padding:40px 24px}
.feature-icon{width:64px;height:64px;margin:0 auto 20px;background:var(--gradient);border-radius:16px;display:flex;align-items:center;justify-content:center}
.feature-icon svg{width:32px;height:32px;fill:#fff}
.feature-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--text-primary)}
.feature-card p{font-size:0.9rem;color:var(--text-secondary);line-height:1.7}
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{position:relative;overflow:hidden;border-radius:var(--radius-lg);height:280px;cursor:pointer}
.scenario-card img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s}
.scenario-card:hover img{transform:scale(1.1)}
.scenario-overlay{position:absolute;bottom:0;left:0;right:0;padding:24px;background:linear-gradient(transparent,rgba(0,0,0,0.8));color:#fff}
.scenario-overlay h3{font-size:1.1rem;margin-bottom:8px}
.scenario-overlay p{font-size:0.85rem;color:rgba(255,255,255,0.8)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center}
.pricing-card{text-align:center;padding:40px 32px;position:relative}
.pricing-card.popular{border-color:var(--primary);transform:scale(1.05);box-shadow:0 8px 40px rgba(59,130,246,0.2)}
.pricing-card.popular::before{content:'最受欢迎';position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--gradient);color:#fff;padding:4px 20px;border-radius:20px;font-size:0.8rem;font-weight:600}
.pricing-name{font-size:1.3rem;font-weight:600;margin-bottom:8px}
.pricing-price{font-size:3rem;font-weight:800;margin:16px 0;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.pricing-price span{font-size:1rem;-webkit-text-fill-color:var(--text-muted)}
.pricing-features{list-style:none;margin:24px 0;text-align:left}
.pricing-features li{padding:8px 0;color:var(--text-secondary);font-size:0.9rem;display:flex;align-items:center;gap:8px}
.pricing-features li::before{content:'✓';color:var(--primary);font-weight:700}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item.active{border-color:var(--primary)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-weight:600;font-size:1rem;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-question .icon{width:24px;height:24px;transition:transform 0.3s;flex-shrink:0}
.faq-item.active .faq-question .icon{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:500px;padding:0 24px 20px}
.faq-answer p{color:var(--text-secondary);font-size:0.9rem;line-height:1.8;margin-bottom:8px}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{padding:32px}
.testimonial-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.testimonial-avatar{width:48px;height:48px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.testimonial-info h4{font-size:0.95rem;font-weight:600}
.testimonial-info p{font-size:0.8rem;color:var(--text-muted)}
.testimonial-stars{display:flex;gap:2px;margin-bottom:12px}
.testimonial-stars span{color:#f59e0b;font-size:1rem}
.testimonial-text{font-size:0.9rem;color:var(--text-secondary);line-height:1.7;font-style:italic}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{overflow:hidden;border-radius:var(--radius)}
.news-card-img{height:200px;overflow:hidden}
.news-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s}
.news-card:hover .news-card-img img{transform:scale(1.1)}
.news-card-body{padding:24px}
.news-card-date{font-size:0.8rem;color:var(--text-muted);margin-bottom:8px}
.news-card-body h3{font-size:1.05rem;margin-bottom:8px;line-height:1.5}
.news-card-body h3 a{color:var(--text-primary);transition:var(--transition)}
.news-card-body h3 a:hover{color:var(--primary)}
.news-card-excerpt{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}
.cta-section{text-align:center;padding:80px 0;position:relative}
.cta-section::before{content:'';position:absolute;inset:0;background:var(--gradient);opacity:0.1;border-radius:var(--radius-lg)}
.cta-section h2{font-size:2.2rem;font-weight:700;margin-bottom:16px}
.cta-section p{color:var(--text-secondary);margin-bottom:32px;font-size:1.1rem}
.footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{color:var(--text-secondary);font-size:0.9rem;margin-top:16px;line-height:1.7}
.footer-col h4{font-size:1rem;font-weight:600;margin-bottom:16px;color:var(--text-primary)}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--text-secondary);font-size:0.9rem;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid var(--border);color:var(--text-muted);font-size:0.85rem}
.breadcrumb{padding:16px 0;margin-top:var(--nav-height);font-size:0.9rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px}
.news-content{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:40px 0}
.news-article{min-width:0}
.news-article h1{font-size:2rem;font-weight:700;line-height:1.4;margin-bottom:20px}
.news-meta{display:flex;align-items:center;gap:16px;margin-bottom:32px;color:var(--text-muted);font-size:0.85rem;flex-wrap:wrap}
.news-article-body{font-size:1rem;line-height:1.9;color:var(--text-secondary)}
.news-article-body h2{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:32px 0 16px;padding-left:16px;border-left:4px solid var(--primary)}
.news-article-body p{margin-bottom:16px}
.news-article-body img{border-radius:var(--radius);margin:20px 0}
.news-sidebar{position:sticky;top:calc(var(--nav-height) + 20px);align-self:start}
.sidebar-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.sidebar-card-title{font-size:1rem;font-weight:600;margin-bottom:16px;padding-left:12px;border-left:3px solid var(--primary)}
.toc-list{list-style:none;position:relative;padding-left:20px}
.toc-list::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:2px;background:var(--border)}
.toc-list li{position:relative;margin-bottom:12px}
.toc-list li::before{content:'';position:absolute;left:-17px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--border);border:2px solid var(--bg-card);transition:var(--transition)}
.toc-list li.active::before{background:var(--primary);border-color:var(--primary)}
.toc-list li a{font-size:0.85rem;color:var(--text-secondary);transition:var(--transition)}
.toc-list li.active a{color:var(--primary);font-weight:600}
.hot-news-list{list-style:none}
.hot-news-list li{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px}
.hot-news-badge{width:24px;height:24px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:700;color:#fff;flex-shrink:0;background:var(--text-muted)}
.hot-news-list li:nth-child(1) .hot-news-badge{background:linear-gradient(135deg,#ef4444,#f59e0b)}
.hot-news-list li:nth-child(2) .hot-news-badge{background:linear-gradient(135deg,#f59e0b,#eab308)}
.hot-news-list li:nth-child(3) .hot-news-badge{background:linear-gradient(135deg,#eab308,#84cc16)}
.hot-news-list li a{font-size:0.85rem;color:var(--text-secondary);line-height:1.5;transition:var(--transition)}
.hot-news-list li a:hover{color:var(--primary)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{padding:6px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:20px;font-size:0.8rem;color:var(--text-secondary);transition:var(--transition);cursor:pointer}
.tag-item:hover{border-color:var(--primary);color:var(--primary);background:rgba(59,130,246,0.1)}
.news-nav{display:flex;justify-content:space-between;margin-top:40px;padding-top:24px;border-top:1px solid var(--border)}
.news-nav a{color:var(--text-secondary);font-size:0.9rem;transition:var(--transition)}
.news-nav a:hover{color:var(--primary)}
.related-news{margin-top:40px;padding-top:24px;border-top:1px solid var(--border)}
.related-news h3{font-size:1.2rem;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:var(--transition)}
.related-card:hover{border-color:var(--primary)}
.related-card h4{font-size:0.85rem;line-height:1.5;margin-bottom:8px}
.related-card h4 a{color:var(--text-primary)}
.related-card h4 a:hover{color:var(--primary)}
.related-card .date{font-size:0.75rem;color:var(--text-muted)}
.comments-section{margin-top:40px;padding-top:24px;border-top:1px solid var(--border)}
.comments-section h3{font-size:1.2rem;margin-bottom:20px}
.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--border)}
.comment-avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.9rem;flex-shrink:0}
.comment-body{flex:1}
.comment-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.comment-name{font-size:0.9rem;font-weight:600}
.comment-date{font-size:0.75rem;color:var(--text-muted)}
.comment-text{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}
.download-hero{padding-top:calc(var(--nav-height) + 40px);padding-bottom:60px}
.download-hero .hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.download-info .download-meta{display:flex;gap:24px;margin:24px 0}
.download-meta-item{text-align:center;padding:16px;background:var(--bg-card);border-radius:var(--radius);flex:1}
.download-meta-item .val{font-size:1.3rem;font-weight:700;color:var(--primary)}
.download-meta-item .label{font-size:0.8rem;color:var(--text-muted);margin-top:4px}
.versions-section{padding:60px 0}
.version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.version-card{text-align:center;padding:32px}
.version-card h3{font-size:1.2rem;margin-bottom:8px}
.version-card .version-num{font-size:0.9rem;color:var(--primary);margin-bottom:16px}
.version-card .version-size{font-size:0.85rem;color:var(--text-muted);margin-bottom:16px}
.version-features{list-style:none;text-align:left;margin:16px 0}
.version-features li{padding:6px 0;font-size:0.85rem;color:var(--text-secondary);display:flex;align-items:center;gap:8px}
.version-features li::before{content:'✓';color:var(--primary);font-weight:700}
.sysreq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sysreq-item{display:flex;align-items:center;gap:12px;padding:20px;background:var(--bg-card);border-radius:var(--radius)}
.sysreq-icon{width:40px;height:40px;background:var(--gradient);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sysreq-icon svg{width:20px;height:20px;fill:#fff}
.sysreq-item h4{font-size:0.9rem;margin-bottom:4px}
.sysreq-item p{font-size:0.8rem;color:var(--text-muted)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{text-align:center;padding:32px 20px;position:relative}
.step-num{width:48px;height:48px;margin:0 auto 16px;background:var(--gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.2rem}
.step-card h3{font-size:1rem;margin-bottom:8px}
.step-card p{font-size:0.85rem;color:var(--text-secondary)}
.sitemap-page{padding-top:calc(var(--nav-height) + 40px);padding-bottom:60px}
.sitemap-page h1{font-size:2rem;text-align:center;margin-bottom:40px}
.sitemap-sections{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.sitemap-section h3{font-size:1.1rem;margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.sitemap-section ul{list-style:none}
.sitemap-section ul li{margin-bottom:10px}
.sitemap-section ul li a{color:var(--text-secondary);font-size:0.9rem}
.sitemap-section ul li a:hover{color:var(--primary)}
.page-404{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column}
.page-404 h1{font-size:8rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-404 p{font-size:1.2rem;color:var(--text-secondary);margin:16px 0 32px}
.page-404 .countdown{font-size:1rem;color:var(--text-muted)}
.news-list-page{padding-top:calc(var(--nav-height) + 40px);padding-bottom:60px}
.news-list-page h1{font-size:2.2rem;text-align:center;margin-bottom:16px}
.news-list-page .subtitle{text-align:center;color:var(--text-secondary);margin-bottom:40px}
.anim-fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.anim-fade-up.visible{opacity:1;transform:translateY(0)}
@media(max-width:992px){
.nav-menu{position:fixed;top:var(--nav-height);left:0;right:0;bottom:0;background:rgba(10,14,26,0.98);flex-direction:column;padding:24px;transform:translateX(100%);transition:transform 0.3s;overflow-y:auto}
.nav-menu.active{transform:translateX(0)}
.nav-menu>li>a{padding:14px 16px;font-size:1rem}
.dropdown{position:static;opacity:1;visibility:visible;transform:none;background:var(--bg-card);box-shadow:none;display:none;padding:0 0 0 16px}
.nav-menu>li .dropdown.show{display:block}
.hamburger{display:flex}
.nav-cta{margin:16px 0 0}
.hero-inner,.download-hero .hero-inner{grid-template-columns:1fr;gap:40px}
.hero-content h1{font-size:2.4rem}
.features-grid,.scenarios-grid,.testimonials-grid,.news-grid,.pricing-grid,.version-grid,.sysreq-grid{grid-template-columns:repeat(2,1fr)}
.pricing-card.popular{transform:scale(1)}
.footer-grid{grid-template-columns:1fr 1fr}
.news-content{grid-template-columns:1fr}
.news-sidebar{position:static}
.steps-grid{grid-template-columns:repeat(2,1fr)}
.sitemap-sections{grid-template-columns:1fr}
.related-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
.section{padding:60px 0}
.section-title h2{font-size:2rem}
.hero-content h1{font-size:2rem}
.hero-stats{flex-wrap:wrap;gap:20px}
.features-grid,.scenarios-grid,.testimonials-grid,.news-grid,.pricing-grid,.version-grid,.sysreq-grid,.steps-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.hero-buttons{flex-direction:column}
.hero-buttons .btn{width:100%;justify-content:center}
.download-info .download-meta{flex-direction:column}
}
@media(max-width:480px){
.container{padding:0 16px}
.hero-content h1{font-size:1.7rem}
.section-title h2{font-size:1.6rem}
.card{padding:20px}
.demo-container{padding:16px}
.hero-stat .number{font-size:1.5rem}
}