*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#667eea;--primary-dark:#5568d3;--secondary:#764ba2;--accent:#f093fb;--text:#333;--text-light:#666;--bg:#fff;--bg-light:#f8f9fa;--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;--transition:all 0.3s ease}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:var(--text);background:var(--bg);overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer;border:none;outline:none;font-family:inherit}
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);box-shadow:var(--shadow);transition:var(--transition)}
.navbar.scrolled{background:rgba(255,255,255,0.98);box-shadow:0 4px 20px rgba(0,0,0,0.1)}
.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:70px}
.nav-logo{font-size:24px;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-menu{display:flex;align-items:center;gap:30px;list-style:none}
.nav-item{position:relative}
.nav-link{font-size:15px;font-weight:500;color:var(--text);padding:8px 0;transition:var(--transition)}
.nav-link:hover{color:var(--primary)}
.nav-link.has-dropdown{display:flex;align-items:center;gap:5px}
.nav-link.has-dropdown::after{content:"▾";font-size:12px;transition:transform 0.3s}
.nav-item:hover .nav-link.has-dropdown::after{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:200px;padding:10px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition)}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-item{display:block;padding:10px 20px;font-size:14px;color:var(--text);transition:var(--transition)}
.dropdown-item:hover{background:var(--bg-light);color:var(--primary);padding-left:25px}
.nav-cta{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;padding:10px 24px;border-radius:25px;font-weight:600;transition:var(--transition)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,0.4)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.hamburger span{width:25px;height:3px;background:var(--text);transition:var(--transition)}
.hero{min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);position:relative;overflow:hidden;padding-top:70px}
.hero::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url("../images/hero-bg.jpg") center/cover;opacity:0.1}
.hero-container{max-width:1200px;margin:0 auto;padding:60px 20px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content{color:#fff}
.hero-title{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px}
.hero-subtitle{font-size:20px;margin-bottom:30px;opacity:0.9}
.hero-buttons{display:flex;gap:15px;margin-bottom:40px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:30px;font-weight:600;transition:var(--transition);font-size:16px}
.btn-primary{background:#fff;color:var(--primary)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 25px rgba(0,0,0,0.2)}
.btn-secondary{background:rgba(255,255,255,0.2);color:#fff;border:2px solid #fff}
.btn-secondary:hover{background:#fff;color:var(--primary)}
.hero-stats{display:flex;gap:40px}
.stat-item{text-align:center}
.stat-number{font-size:36px;font-weight:800;display:block}
.stat-label{font-size:14px;opacity:0.8}
.hero-demo{background:rgba(255,255,255,0.1);backdrop-filter:blur(10px);border-radius:20px;padding:30px;border:1px solid rgba(255,255,255,0.2)}
.demo-header{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.demo-dot{width:12px;height:12px;border-radius:50%}
.demo-dot:nth-child(1){background:#ff5f56}
.demo-dot:nth-child(2){background:#ffbd2e}
.demo-dot:nth-child(3){background:#27c93f}
.demo-content{background:rgba(0,0,0,0.3);border-radius:10px;padding:20px;color:#fff}
.demo-status{display:flex;align-items:center;gap:10px;margin-bottom:15px}
.status-indicator{width:10px;height:10px;border-radius:50%;background:#27c93f;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.5}}
.demo-speed{font-size:48px;font-weight:800;text-align:center;margin:20px 0}
.demo-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
.node-item{background:rgba(255,255,255,0.1);padding:10px;border-radius:8px;text-align:center;font-size:12px;cursor:pointer;transition:var(--transition)}
.node-item:hover,.node-item.active{background:rgba(255,255,255,0.2)}
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:60px}
.section-title{font-size:36px;font-weight:800;margin-bottom:15px}
.section-subtitle{font-size:18px;color:var(--text-light)}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.feature-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.feature-icon{width:60px;height:60px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:28px}
.feature-title{font-size:20px;font-weight:700;margin-bottom:10px}
.feature-desc{color:var(--text-light);font-size:15px}
.scenarios-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.scenario-card{position:relative;border-radius:var(--radius);overflow:hidden;height:250px;cursor:pointer}
.scenario-img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.scenario-card:hover .scenario-img{transform:scale(1.1)}
.scenario-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to top,rgba(0,0,0,0.8),transparent);display:flex;flex-direction:column;justify-content:flex-end;padding:25px;color:#fff}
.scenario-title{font-size:22px;font-weight:700;margin-bottom:8px}
.scenario-desc{font-size:14px;opacity:0.9}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;max-width:1000px;margin:0 auto}
.pricing-card{background:#fff;border-radius:var(--radius);padding:40px 30px;box-shadow:var(--shadow);transition:var(--transition);border:2px solid var(--border);position:relative}
.pricing-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.pricing-card.popular{border-color:var(--primary);transform:scale(1.05)}
.popular-badge{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;padding:6px 20px;border-radius:20px;font-size:13px;font-weight:600}
.pricing-name{font-size:24px;font-weight:700;margin-bottom:10px}
.pricing-price{font-size:48px;font-weight:800;color:var(--primary);margin-bottom:5px}
.pricing-price span{font-size:16px;color:var(--text-light);font-weight:400}
.pricing-desc{color:var(--text-light);margin-bottom:25px;font-size:14px}
.pricing-features{list-style:none;margin-bottom:30px}
.pricing-features li{padding:10px 0;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;font-size:14px}
.pricing-features li::before{content:"✓";color:var(--primary);font-weight:700}
.pricing-btn{display:block;width:100%;padding:14px;border-radius:25px;text-align:center;font-weight:600;transition:var(--transition)}
.pricing-btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.pricing-btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,0.4)}
.pricing-btn-secondary{background:var(--bg-light);color:var(--text)}
.pricing-btn-secondary:hover{background:var(--primary);color:#fff}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:15px;box-shadow:var(--shadow);overflow:hidden}
.faq-question{padding:20px 25px;font-size:17px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-icon{font-size:20px;transition:transform 0.3s}
.faq-item.active .faq-icon{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease;padding:0 25px}
.faq-item.active .faq-answer{max-height:500px;padding:0 25px 20px}
.faq-answer p{color:var(--text-light);line-height:1.8}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.testimonial-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.testimonial-header{display:flex;align-items:center;gap:15px;margin-bottom:20px}
.testimonial-avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px}
.testimonial-info h4{font-size:16px;font-weight:600;margin-bottom:3px}
.testimonial-info p{font-size:13px;color:var(--text-light)}
.testimonial-stars{color:#ffc107;margin-bottom:15px}
.testimonial-text{color:var(--text-light);line-height:1.8;font-size:15px}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:30px}
.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-img{width:100%;height:200px;object-fit:cover}
.news-content{padding:25px}
.news-date{font-size:13px;color:var(--text-light);margin-bottom:10px}
.news-title{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.4}
.news-title:hover{color:var(--primary)}
.news-excerpt{color:var(--text-light);font-size:14px;line-height:1.6;margin-bottom:15px}
.news-link{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:5px}
.news-link:hover{gap:10px}
.cta-section{background:linear-gradient(135deg,var(--primary),var(--secondary));padding:80px 0;text-align:center;color:#fff}
.cta-title{font-size:36px;font-weight:800;margin-bottom:20px}
.cta-desc{font-size:18px;margin-bottom:30px;opacity:0.9}
.footer{background:#1a1a2e;color:#fff;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand h3{font-size:24px;margin-bottom:15px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-brand p{color:#aaa;line-height:1.8;font-size:14px}
.footer-col h4{font-size:16px;margin-bottom:20px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#aaa;font-size:14px;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--primary);padding-left:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;text-align:center;color:#aaa;font-size:14px}
.article-container{max-width:1200px;margin:80px auto 0;padding:40px 20px;display:grid;grid-template-columns:1fr 320px;gap:40px}
.article-main{background:#fff;border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.article-breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:25px;font-size:14px;color:var(--text-light)}
.article-breadcrumb a{color:var(--primary)}
.article-breadcrumb a:hover{text-decoration:underline}
.article-title{font-size:32px;font-weight:800;margin-bottom:20px;line-height:1.3}
.article-meta{display:flex;align-items:center;gap:20px;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--border);font-size:14px;color:var(--text-light)}
.article-content{line-height:1.8;color:var(--text)}
.article-content h2{font-size:24px;font-weight:700;margin:30px 0 15px;padding-left:15px;border-left:4px solid var(--primary)}
.article-content p{margin-bottom:20px;font-size:16px}
.article-content img{border-radius:var(--radius);margin:20px 0}
.article-sidebar{position:sticky;top:90px;height:fit-content}
.sidebar-card{background:#fff;border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);margin-bottom:20px}
.sidebar-title{font-size:18px;font-weight:700;margin-bottom:20px;padding-left:15px;border-left:4px solid var(--primary)}
.toc-list{list-style:none}
.toc-item{padding:10px 0;border-left:2px solid var(--border);padding-left:20px;margin-left:10px;position:relative;transition:var(--transition)}
.toc-item::before{content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:var(--border);transition:var(--transition)}
.toc-item.active{border-left-color:var(--primary);color:var(--primary);font-weight:600}
.toc-item.active::before{background:var(--primary)}
.toc-item a{color:inherit}
.hot-news-list{list-style:none}
.hot-news-item{display:flex;align-items:center;gap:15px;padding:12px 0;border-bottom:1px solid var(--border);transition:var(--transition)}
.hot-news-item:last-child{border-bottom:none}
.hot-news-item:hover{padding-left:5px}
.hot-news-item:hover .hot-news-title{color:var(--primary)}
.hot-news-rank{width:28px;height:28px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}
.hot-news-item:nth-child(1) .hot-news-rank{background:linear-gradient(135deg,#ff6b6b,#ee5a6f)}
.hot-news-item:nth-child(2) .hot-news-rank{background:linear-gradient(135deg,#f093fb,#f5576c)}
.hot-news-item:nth-child(3) .hot-news-rank{background:linear-gradient(135deg,#ffa751,#ffe259)}
.hot-news-title{font-size:14px;line-height:1.4;transition:var(--transition)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-item{padding:6px 14px;background:var(--bg-light);border-radius:20px;font-size:13px;transition:var(--transition);cursor:pointer}
.tag-item:hover{background:var(--primary);color:#fff}
.article-nav{display:flex;justify-content:space-between;margin-top:40px;padding-top:30px;border-top:1px solid var(--border)}
.article-nav-item{flex:1;padding:15px;background:var(--bg-light);border-radius:var(--radius);transition:var(--transition)}
.article-nav-item:hover{background:var(--primary);color:#fff}
.article-nav-item.prev{margin-right:10px}
.article-nav-item.next{margin-left:10px;text-align:right}
.article-nav-label{font-size:13px;color:var(--text-light);margin-bottom:5px}
.article-nav-title{font-size:14px;font-weight:600}
.related-news{margin-top:40px}
.related-news h3{font-size:20px;font-weight:700;margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.related-card{background:var(--bg-light);border-radius:var(--radius);padding:20px;transition:var(--transition)}
.related-card:hover{background:#fff;box-shadow:var(--shadow)}
.related-card h4{font-size:15px;font-weight:600;margin-bottom:8px;line-height:1.4}
.related-card p{font-size:13px;color:var(--text-light)}
.comments-section{margin-top:40px}
.comments-section h3{font-size:20px;font-weight:700;margin-bottom:25px}
.comment-item{display:flex;gap:15px;padding:20px 0;border-bottom:1px solid var(--border)}
.comment-item:last-child{border-bottom:none}
.comment-avatar{width:45px;height:45px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;flex-shrink:0}
.comment-content{flex:1}
.comment-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment-name{font-weight:600;font-size:15px}
.comment-date{font-size:13px;color:var(--text-light)}
.comment-text{color:var(--text-light);font-size:14px;line-height:1.6}
.download-hero{background:linear-gradient(135deg,var(--primary),var(--secondary));padding:100px 0 60px;color:#fff}
.download-container{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.download-content h1{font-size:42px;font-weight:800;margin-bottom:20px}
.download-content p{font-size:18px;margin-bottom:30px;opacity:0.9}
.download-buttons{display:flex;gap:15px;margin-bottom:30px;flex-wrap:wrap}
.download-stats{display:flex;gap:30px}
.download-stat{text-align:center}
.download-stat-number{font-size:32px;font-weight:800;display:block}
.download-stat-label{font-size:14px;opacity:0.8}
.versions-section{padding:60px 0;background:var(--bg-light)}
.versions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;max-width:1000px;margin:0 auto}
.version-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:var(--transition)}
.version-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.version-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.version-number{font-size:24px;font-weight:800;color:var(--primary)}
.version-size{font-size:14px;color:var(--text-light)}
.version-features{list-style:none;margin:20px 0}
.version-features li{padding:8px 0;display:flex;align-items:center;gap:10px;font-size:14px}
.version-features li::before{content:"✓";color:var(--primary);font-weight:700}
.system-requirements{padding:60px 0}
.requirements-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:25px;max-width:1000px;margin:0 auto}
.requirement-item{background:#fff;border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);text-align:center}
.requirement-icon{font-size:36px;margin-bottom:15px}
.requirement-title{font-size:16px;font-weight:700;margin-bottom:8px}
.requirement-desc{font-size:14px;color:var(--text-light)}
.install-steps{padding:60px 0;background:var(--bg-light)}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;max-width:1000px;margin:0 auto}
.step-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);text-align:center;position:relative}
.step-number{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin:0 auto 20px}
.step-title{font-size:18px;font-weight:700;margin-bottom:10px}
.step-desc{font-size:14px;color:var(--text-light)}
.sitemap-page{padding:100px 0 60px}
.sitemap-content{max-width:800px;margin:0 auto}
.sitemap-section{margin-bottom:40px}
.sitemap-section h2{font-size:24px;font-weight:700;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--primary)}
.sitemap-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}
.sitemap-link{padding:12px 20px;background:var(--bg-light);border-radius:var(--radius);transition:var(--transition)}
.sitemap-link:hover{background:var(--primary);color:#fff;transform:translateX(5px)}
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;text-align:center}
.error-content h1{font-size:120px;font-weight:800;margin-bottom:20px}
.error-content p{font-size:24px;margin-bottom:30px}
.error-countdown{font-size:18px;opacity:0.9}
@media(max-width:992px){.hero-container,.download-container{grid-template-columns:1fr;gap:40px}.hero-title{font-size:36px}.article-container{grid-template-columns:1fr}.article-sidebar{position:static}.footer-grid{grid-template-columns:1fr 1fr}.nav-menu{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;box-shadow:var(--shadow);transform:translateY(-100%);opacity:0;visibility:hidden;transition:var(--transition)}.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}.hamburger{display:flex}.nav-item{width:100%}.dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding-left:20px;display:none}.nav-item.active .dropdown{display:block}}
@media(max-width:768px){.hero-title{font-size:32px}.hero-stats{flex-direction:column;gap:20px}.section-title{font-size:28px}.pricing-card.popular{transform:none}.footer-grid{grid-template-columns:1fr}.article-title{font-size:24px}.download-content h1{font-size:32px}}
@media(max-width:480px){.hero-title{font-size:28px}.hero-buttons{flex-direction:column}.btn{width:100%;justify-content:center}.section{padding:60px 0}.features-grid,.scenarios-grid,.pricing-grid,.news-grid{grid-template-columns:1fr}.article-main{padding:25px}}