*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#667eea;--primary-dark:#5a6fd6;--secondary:#764ba2;--gradient:linear-gradient(135deg,#667eea 0%,#764ba2 100%);--text:#333;--text-light:#666;--text-lighter:#999;--bg:#fff;--bg-light:#f8f9fa;--bg-dark:#1a1a2e;--border:#e0e0e0;--shadow:0 2px 10px rgba(0,0,0,0.1);--shadow-lg:0 10px 40px rgba(0,0,0,0.15);--radius:12px;--radius-sm:8px;--transition:all 0.3s ease}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);line-height:1.6;background:var(--bg)}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.highlight{color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 1.5rem;border-radius:var(--radius-sm);font-weight:600;transition:var(--transition);cursor:pointer;border:2px solid transparent;text-align:center}
.btn-primary{background:var(--gradient);color:#fff;border-color:transparent}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 20px rgba(102,126,234,0.4)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-large{padding:1rem 2rem;font-size:1.1rem}
.btn-block{width:100%}
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);transition:var(--transition)}
.navbar.scrolled{background:rgba(255,255,255,0.98);box-shadow:var(--shadow)}
.nav-container{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;height:70px}
.nav-logo{display:flex;align-items:center;gap:0.5rem;font-size:1.25rem;font-weight:700;color:var(--text)}
.nav-logo img{width:32px;height:32px}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:0.5rem}
.nav-toggle span{width:24px;height:2px;background:var(--text);transition:var(--transition)}
.nav-menu{display:flex;align-items:center;gap:2rem}
.nav-item{position:relative}
.nav-link{color:var(--text);font-weight:500;padding:0.5rem 0;transition:var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--primary)}
.dropdown-arrow{font-size:0.8em;transition:var(--transition);display:inline-block}
.nav-item:hover .dropdown-arrow{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:0.5rem 0;min-width:180px;opacity:0;visibility:hidden;transition:var(--transition)}
.nav-item:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown-menu li a{display:block;padding:0.5rem 1rem;color:var(--text);transition:var(--transition)}
.dropdown-menu li a:hover{background:var(--bg-light);color:var(--primary)}
.nav-cta{background:var(--gradient);color:#fff;padding:0.5rem 1.25rem;border-radius:var(--radius-sm);font-weight:600}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 5px 20px rgba(102,126,234,0.4)}
.hero{padding:120px 0 80px;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);min-height:90vh;display:flex;align-items:center}
.hero-container{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.hero-content h1{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem}
.hero-subtitle{font-size:1.25rem;color:var(--text-light);margin-bottom:2rem}
.hero-buttons{display:flex;gap:1rem;margin-bottom:3rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:3rem}
.stat-item{text-align:center}
.stat-number{display:block;font-size:2rem;font-weight:700;color:var(--primary)}
.stat-label{font-size:0.9rem;color:var(--text-light)}
.hero-demo{position:relative}
.demo-window{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.demo-header{background:var(--bg-light);padding:0.75rem 1rem;display:flex;align-items:center;gap:0.5rem;border-bottom:1px solid var(--border)}
.demo-dot{width:12px;height:12px;border-radius:50%}
.demo-dot.red{background:#ff5f56}
.demo-dot.yellow{background:#ffbd2e}
.demo-dot.green{background:#27c93f}
.demo-title{margin-left:auto;font-size:0.85rem;color:var(--text-light)}
.demo-body{display:flex;min-height:400px}
.demo-sidebar{width:120px;background:var(--bg-light);padding:1rem;border-right:1px solid var(--border)}
.demo-nav-item{padding:0.5rem 0.75rem;border-radius:var(--radius-sm);font-size:0.85rem;color:var(--text-light);cursor:pointer;transition:var(--transition);margin-bottom:0.25rem}
.demo-nav-item:hover,.demo-nav-item.active{background:var(--primary);color:#fff}
.demo-main{flex:1;padding:1.5rem}
.demo-connection{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}
.demo-status{font-size:0.9rem;color:var(--text-light)}
.demo-status.connected{color:#27c93f}
.demo-connect-btn{background:var(--gradient);color:#fff;border:none;padding:0.5rem 1.5rem;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;transition:var(--transition)}
.demo-connect-btn:hover{transform:scale(1.05)}
.demo-connect-btn.connected{background:#27c93f}
.demo-speed{text-align:center;margin-bottom:1.5rem}
.speed-circle{position:relative;width:150px;height:150px;margin:0 auto}
.speed-circle svg{width:100%;height:100%;transform:rotate(-90deg)}
.speed-value{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;font-weight:700;color:var(--primary)}
.speed-unit{position:absolute;top:65%;left:50%;transform:translateX(-50%);font-size:0.8rem;color:var(--text-light)}
.demo-nodes{display:flex;flex-direction:column;gap:0.5rem}
.node-item{display:flex;align-items:center;gap:0.75rem;padding:0.5rem 0.75rem;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition)}
.node-item:hover,.node-item.active{background:var(--bg-light)}
.node-flag{font-size:1.25rem}
.node-name{flex:1;font-size:0.85rem}
.node-ping{font-size:0.75rem;color:var(--text-light)}
section{padding:80px 0}
.section-header{text-align:center;margin-bottom:3rem}
.section-header h2{font-size:2.5rem;font-weight:700;margin-bottom:1rem}
.section-header p{font-size:1.1rem;color:var(--text-light)}
.features{background:var(--bg-light)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.feature-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);transition:var(--transition)}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.feature-icon{width:60px;height:60px;background:var(--gradient);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem}
.feature-icon svg{width:30px;height:30px;color:#fff}
.feature-card h3{font-size:1.25rem;margin-bottom:1rem}
.feature-card p{color:var(--text-light);font-size:0.95rem}
.tech-showcase{background:#fff}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.tech-card{background:var(--bg-light);padding:2rem;border-radius:var(--radius);transition:var(--transition)}
.tech-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.tech-number{font-size:3rem;font-weight:800;color:var(--primary);opacity:0.3;margin-bottom:1rem}
.tech-card h3{font-size:1.25rem;margin-bottom:1rem}
.tech-card p{color:var(--text-light);font-size:0.95rem;margin-bottom:1.5rem}
.tech-stats{display:flex;gap:2rem}
.tech-stat{text-align:center}
.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--primary)}
.stat-label{font-size:0.8rem;color:var(--text-light)}
.scenarios{background:var(--bg-light)}
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.scenario-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);transition:var(--transition)}
.scenario-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.scenario-icon{font-size:3rem;margin-bottom:1rem}
.scenario-card h3{font-size:1.25rem;margin-bottom:1rem}
.scenario-card p{color:var(--text-light);font-size:0.95rem;margin-bottom:1rem}
.scenario-features{display:flex;flex-direction:column;gap:0.5rem}
.scenario-features li{font-size:0.9rem;color:var(--text-light);padding-left:1.5rem;position:relative}
.scenario-features li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}
.pricing{background:#fff}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;align-items:center}
.pricing-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);transition:var(--transition);position:relative}
.pricing-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.pricing-card.popular{transform:scale(1.05);box-shadow:var(--shadow-lg);border:2px solid var(--primary)}
.pricing-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--gradient);color:#fff;padding:0.25rem 1rem;border-radius:20px;font-size:0.85rem;font-weight:600}
.pricing-header{text-align:center;margin-bottom:1.5rem}
.pricing-header h3{font-size:1.5rem;margin-bottom:0.5rem}
.pricing-desc{color:var(--text-light);font-size:0.9rem}
.pricing-price{text-align:center;margin-bottom:2rem}
.price-currency{font-size:1.5rem;vertical-align:top}
.price-amount{font-size:3rem;font-weight:700;color:var(--primary)}
.price-period{font-size:1rem;color:var(--text-light)}
.pricing-features{margin-bottom:2rem}
.pricing-features li{padding:0.5rem 0;display:flex;align-items:center;gap:0.5rem;font-size:0.95rem}
.check{color:var(--primary);font-weight:700}
.steps{background:var(--bg-light)}
.steps-grid{display:flex;align-items:center;justify-content:center;gap:2rem;flex-wrap:wrap}
.step-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;flex:1;min-width:200px;max-width:280px;position:relative}
.step-number{position:absolute;top:-15px;left:50%;transform:translateX(-50%);width:30px;height:30px;background:var(--gradient);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9rem}
.step-icon{font-size:3rem;margin:1rem 0}
.step-card h3{font-size:1.25rem;margin-bottom:1rem}
.step-card p{color:var(--text-light);font-size:0.95rem}
.step-connector{width:60px;height:2px;background:var(--gradient)}
.testimonials{background:#fff}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.testimonial-card{background:var(--bg-light);padding:2rem;border-radius:var(--radius);transition:var(--transition)}
.testimonial-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.testimonial-rating{margin-bottom:1rem}
.star{color:#ffc107;font-size:1.25rem}
.testimonial-text{color:var(--text);font-size:0.95rem;margin-bottom:1.5rem;font-style:italic}
.testimonial-author{display:flex;align-items:center;gap:1rem}
.author-avatar{width:50px;height:50px;background:var(--gradient);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.25rem}
.author-name{font-weight:600}
.author-title{font-size:0.85rem;color:var(--text-light)}
.news{background:var(--bg-light)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-bottom:2rem}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-image{display:block;aspect-ratio:16/9;overflow:hidden}
.news-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.news-card:hover .news-image img{transform:scale(1.05)}
.news-content{padding:1.5rem}
.news-meta{display:flex;gap:1rem;margin-bottom:1rem;font-size:0.85rem;color:var(--text-light)}
.news-category{color:var(--primary);font-weight:600}
.news-title{font-size:1.1rem;margin-bottom:1rem;line-height:1.4}
.news-title a:hover{color:var(--primary)}
.news-excerpt{color:var(--text-light);font-size:0.9rem;margin-bottom:1rem;line-height:1.6}
.news-link{color:var(--primary);font-weight:600;font-size:0.9rem}
.news-more{text-align:center}
.faq{background:#fff}
.faq-grid{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-light);border-radius:var(--radius);margin-bottom:1rem;overflow:hidden}
.faq-item h3{padding:1.5rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1.1rem;transition:var(--transition)}
.faq-item h3:hover{color:var(--primary)}
.faq-toggle{font-size:1.5rem;color:var(--primary);transition:var(--transition)}
.faq-item.active .faq-toggle{transform:rotate(45deg)}
.faq-content{max-height:0;overflow:hidden;transition:max-height 0.3s ease}
.faq-item.active .faq-content{max-height:500px}
.faq-content p,.faq-content ol{padding:0 1.5rem 1.5rem;color:var(--text-light);font-size:0.95rem}
.faq-content ol{padding-left:2.5rem}
.faq-content li{margin-bottom:0.5rem}
.cta{background:var(--gradient);color:#fff;text-align:center;padding:80px 0}
.cta-content h2{font-size:2.5rem;margin-bottom:1rem;color:#fff}
.cta-content p{font-size:1.25rem;margin-bottom:2rem;opacity:0.9}
.cta-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.cta .btn-primary{background:#fff;color:var(--primary)}
.cta .btn-outline{border-color:#fff;color:#fff}
.cta .btn-outline:hover{background:#fff;color:var(--primary)}
.footer{background:var(--bg-dark);color:#fff;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem;margin-bottom:3rem}
.footer-col h4{font-size:1.1rem;margin-bottom:1.5rem}
.footer-col ul{display:flex;flex-direction:column;gap:0.75rem}
.footer-col a{color:rgba(255,255,255,0.7);transition:var(--transition)}
.footer-col a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.5);font-size:0.9rem}
.page-header{padding:120px 0 40px;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);text-align:center}
.breadcrumb{margin-bottom:1rem;font-size:0.9rem;color:var(--text-light)}
.breadcrumb a{color:var(--primary)}
.breadcrumb .separator{margin:0 0.5rem}
.breadcrumb .current{color:var(--text)}
.page-header h1{font-size:2.5rem;margin-bottom:1rem}
.page-header p{color:var(--text-light);font-size:1.1rem}
.download-hero{padding:120px 0 60px;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%)}
.download-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.download-hero-content h1{font-size:2.5rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem}
.download-hero-subtitle{font-size:1.1rem;color:var(--text-light);margin-bottom:2rem}
.download-hero-buttons{display:flex;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}
.download-hero-stats{display:flex;gap:2rem}
.download-hero-stats .stat-item{display:flex;align-items:center;gap:0.75rem}
.download-hero-stats .stat-icon{font-size:1.5rem}
.download-hero-stats .stat-value{font-size:1.25rem;font-weight:700;color:var(--primary)}
.download-hero-stats .stat-label{font-size:0.85rem;color:var(--text-light)}
.download-versions{background:#fff}
.versions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.version-card{background:var(--bg-light);padding:2rem;border-radius:var(--radius);transition:var(--transition)}
.version-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.version-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}
.version-icon{font-size:2.5rem}
.version-header h3{font-size:1.25rem}
.version-tag{background:var(--gradient);color:#fff;padding:0.25rem 0.75rem;border-radius:20px;font-size:0.75rem;font-weight:600}
.version-meta{display:flex;gap:1rem;margin-bottom:1rem;font-size:0.9rem}
.version-number{font-weight:700;color:var(--primary)}
.version-size{color:var(--text-light)}
.version-features{margin-bottom:1.5rem}
.version-features li{padding:0.5rem 0;font-size:0.9rem;display:flex;align-items:center;gap:0.5rem}
.system-requirements{background:var(--bg-light)}
.requirements-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.requirement-card{background:#fff;padding:2rem;border-radius:var(--radius);text-align:center;box-shadow:var(--shadow)}
.requirement-icon{font-size:3rem;margin-bottom:1rem}
.requirement-card h3{font-size:1.1rem;margin-bottom:1rem}
.requirement-card p{color:var(--text-light);font-size:0.9rem;line-height:1.8}
.install-steps{background:#fff}
.download-faq{background:var(--bg-light)}
.article-page{padding:40px 0 80px}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:3rem}
.article-main{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.article-header{padding:2rem;border-bottom:1px solid var(--border)}
.article-header h1{font-size:2rem;margin-bottom:1rem;line-height:1.3}
.article-meta{display:flex;gap:1.5rem;font-size:0.9rem;color:var(--text-light)}
.article-cover{aspect-ratio:16/9;overflow:hidden}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-content{padding:2rem}
.article-lead{font-size:1.1rem;color:var(--text);font-weight:500;margin-bottom:1.5rem;padding:1rem;background:var(--bg-light);border-radius:var(--radius-sm);border-left:4px solid var(--primary)}
.article-content p{margin-bottom:1.5rem;color:var(--text-light);line-height:1.8}
.article-content h2{font-size:1.5rem;margin:2rem 0 1rem;padding-top:1rem;border-top:1px solid var(--border)}
.article-comments{padding:2rem;border-top:1px solid var(--border)}
.article-comments h3{font-size:1.25rem;margin-bottom:1.5rem}
.comment-list{display:flex;flex-direction:column;gap:1.5rem}
.comment-item{display:flex;gap:1rem}
.comment-avatar{width:40px;height:40px;background:var(--gradient);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.comment-content{flex:1}
.comment-header{display:flex;gap:1rem;margin-bottom:0.5rem;font-size:0.85rem}
.comment-author{font-weight:600}
.comment-date{color:var(--text-light)}
.comment-text{color:var(--text-light);font-size:0.95rem}
.article-nav{padding:2rem;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.nav-back{color:var(--primary);font-weight:600}
.nav-articles{display:flex;flex-direction:column;gap:0.5rem}
.nav-prev,.nav-next{color:var(--text-light);font-size:0.9rem}
.nav-prev:hover,.nav-next:hover{color:var(--primary)}
.related-articles{padding:2rem;border-top:1px solid var(--border)}
.related-articles h3{font-size:1.25rem;margin-bottom:1.5rem}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.related-card{background:var(--bg-light);border-radius:var(--radius-sm);overflow:hidden;transition:var(--transition)}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.related-card img{aspect-ratio:16/9;object-fit:cover}
.related-card h4{padding:1rem;font-size:0.9rem;line-height:1.4}
.article-sidebar{position:sticky;top:90px;align-self:start}
.sidebar-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1.5rem}
.sidebar-card h4{font-size:1.1rem;margin-bottom:1rem;padding-left:1rem;border-left:3px solid var(--primary)}
.toc-list{display:flex;flex-direction:column;gap:0.75rem}
.toc-link{color:var(--text-light);font-size:0.9rem;padding-left:1rem;border-left:2px solid var(--border);transition:var(--transition)}
.toc-link:hover,.toc-link.active{color:var(--primary);border-left-color:var(--primary);font-weight:600}
.hot-news-list{display:flex;flex-direction:column;gap:0.75rem}
.hot-news-list li{display:flex;align-items:center;gap:0.75rem}
.hot-rank{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:700;color:#fff;background:var(--text-lighter);flex-shrink:0}
.hot-rank.rank-1{background:linear-gradient(135deg,#ff6b6b,#ee5a5a)}
.hot-rank.rank-2{background:linear-gradient(135deg,#ffa500,#ff8c00)}
.hot-rank.rank-3{background:linear-gradient(135deg,#ffd700,#ffb700)}
.hot-news-list a{color:var(--text-light);font-size:0.85rem;transition:var(--transition)}
.hot-news-list a:hover{color:var(--primary)}
.category-tags{display:flex;flex-wrap:wrap;gap:0.5rem}
.category-tag{background:var(--bg-light);color:var(--text-light);padding:0.25rem 0.75rem;border-radius:20px;font-size:0.8rem;transition:var(--transition)}
.category-tag:hover{background:var(--primary);color:#fff}
.news-list{padding:40px 0 80px}
.sitemap-page{padding:40px 0 80px}
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem}
.sitemap-col h3{font-size:1.25rem;margin-bottom:1.5rem;color:var(--primary)}
.sitemap-col ul{display:flex;flex-direction:column;gap:0.75rem}
.sitemap-col a{color:var(--text-light);transition:var(--transition)}
.sitemap-col a:hover{color:var(--primary)}
@media(max-width:992px){
.nav-toggle{display:flex}
.nav-menu{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:2rem;gap:1rem;transform:translateY(-100%);opacity:0;visibility:hidden;transition:var(--transition);box-shadow:var(--shadow)}
.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}
.dropdown-menu{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;padding-left:1rem;display:none}
.nav-item.dropdown.active .dropdown-menu{display:block}
.hero-container,.download-hero-grid{grid-template-columns:1fr;gap:2rem}
.hero-content h1{font-size:2rem}
.features-grid,.tech-grid,.scenarios-grid,.pricing-grid,.testimonials-grid,.news-grid,.versions-grid,.requirements-grid,.related-grid,.sitemap-grid{grid-template-columns:1fr}
.pricing-card.popular{transform:none}
.steps-grid{flex-direction:column}
.step-connector{width:2px;height:30px}
.article-layout{grid-template-columns:1fr}
.article-sidebar{position:static}
.footer-grid{grid-template-columns:1fr}
.hero-stats,.download-hero-stats{flex-wrap:wrap;gap:1.5rem}
}
@media(max-width:768px){
.hero-content h1{font-size:1.75rem}
.section-header h2{font-size:1.75rem}
.cta-content h2{font-size:1.75rem}
.demo-body{flex-direction:column}
.demo-sidebar{width:100%;flex-direction:row;overflow-x:auto}
.demo-nav-item{white-space:nowrap}
}
@media(max-width:480px){
.hero-content h1{font-size:1.5rem}
.btn-large{padding:0.75rem 1.5rem;font-size:1rem}
.hero-stats,.download-hero-stats{justify-content:center}
}