*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#667eea;--primary-dark:#764ba2;--secondary:#f093fb;--accent:#4facfe;--text:#333;--text-light:#666;--bg:#f8f9fa;--white:#fff;--shadow:0 2px 15px rgba(0,0,0,.08);--shadow-lg:0 10px 40px rgba(0,0,0,.12);--radius:12px;--transition:all .3s ease}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);line-height:1.6;background:var(--white);overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 32px;border-radius:50px;font-weight:600;font-size:16px;cursor:pointer;transition:var(--transition);border:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);box-shadow:0 4px 15px rgba(102,126,234,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(102,126,234,.5)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:var(--white)}
.btn-lg{padding:16px 40px;font-size:18px}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:60px}
.section-title h2{font-size:36px;font-weight:700;margin-bottom:16px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-title p{font-size:18px;color:var(--text-light);max-width:600px;margin:0 auto}
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);transition:var(--transition)}
header.scrolled{background:rgba(255,255,255,.98);box-shadow:var(--shadow)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:700}
.nav-logo img{width:40px;height:40px}
.nav-menu{display:flex;align-items:center;gap:32px;list-style:none}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:4px;font-weight:500;padding:8px 0}
.nav-link:hover{color:var(--primary)}
.nav-dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:12px 0;min-width:180px;opacity:0;visibility:hidden;transition:var(--transition)}
.nav-item:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-dropdown a{display:block;padding:10px 20px;white-space:nowrap}
.nav-dropdown a:hover{background:var(--bg);color:var(--primary)}
.nav-arrow{transition:var(--transition);font-size:12px}
.nav-item:hover .nav-arrow{transform:rotate(180deg)}
.nav-cta{margin-left:16px}
.nav-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--text);transition:var(--transition)}
.hero{padding:140px 0 80px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:var(--white);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 70%);border-radius:50%}
.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-text h1{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px}
.hero-text p{font-size:20px;opacity:.9;margin-bottom:32px}
.hero-stats{display:flex;gap:40px;margin-top:40px}
.hero-stat{text-align:center}
.hero-stat-value{font-size:36px;font-weight:700}
.hero-stat-label{font-size:14px;opacity:.8}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.hero-demo{background:rgba(255,255,255,.1);border-radius:20px;padding:24px;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}
.demo-header{display:flex;align-items:center;gap:8px;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,.2);border-radius:12px;padding:20px}
.demo-map{width:100%;height:200px;background:linear-gradient(135deg,rgba(102,126,234,.3),rgba(118,75,162,.3));border-radius:8px;margin-bottom:16px;position:relative;overflow:hidden}
.demo-map::before{content:'';position:absolute;top:50%;left:50%;width:10px;height:10px;background:var(--white);border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 20px rgba(255,255,255,.5)}
.demo-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.demo-stat{background:rgba(255,255,255,.1);border-radius:8px;padding:12px;text-align:center}
.demo-stat-value{font-size:20px;font-weight:700}
.demo-stat-label{font-size:12px;opacity:.8}
.features{background:var(--bg)}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.feature-card{background:var(--white);border-radius:var(--radius);padding:32px;text-align:center;transition:var(--transition);border:1px solid transparent}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.feature-icon{width:64px;height:64px;margin:0 auto 20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--white)}
.feature-card h3{font-size:20px;margin-bottom:12px}
.feature-card p{color:var(--text-light);font-size:15px}
.scenarios-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.scenario-card{position:relative;border-radius:var(--radius);overflow:hidden;height:280px;cursor:pointer}
.scenario-card img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.scenario-card:hover img{transform:scale(1.1)}
.scenario-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px;color:var(--white)}
.scenario-overlay h3{font-size:22px;margin-bottom:8px}
.scenario-overlay p{font-size:14px;opacity:.9}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1000px;margin:0 auto}
.pricing-card{background:var(--white);border-radius:var(--radius);padding:32px;text-align:center;border:2px solid var(--bg);transition:var(--transition);position:relative}
.pricing-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.pricing-card.popular{border-color:var(--primary);transform:scale(1.05)}
.pricing-card.popular::before{content:'最受欢迎';position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);padding:4px 16px;border-radius:20px;font-size:12px;font-weight:600}
.pricing-name{font-size:20px;font-weight:600;margin-bottom:8px}
.pricing-price{font-size:48px;font-weight:700;color:var(--primary);margin:16px 0}
.pricing-price span{font-size:16px;color:var(--text-light)}
.pricing-features{list-style:none;margin:24px 0;text-align:left}
.pricing-features li{padding:8px 0;border-bottom:1px solid var(--bg);display:flex;align-items:center;gap:8px}
.pricing-features li::before{content:'✓';color:var(--primary);font-weight:700}
.faq-grid{max-width:800px;margin:0 auto}
.faq-item{background:var(--white);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;box-shadow:var(--shadow)}
.faq-question{padding:20px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s ease}
.faq-item.active .faq-answer{padding:0 24px 20px;max-height:500px}
.faq-item.active .faq-question{color:var(--primary)}
.faq-toggle{transition:var(--transition)}
.faq-item.active .faq-toggle{transform:rotate(180deg)}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.testimonial-card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.testimonial-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.testimonial-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700}
.testimonial-info h4{font-size:16px;margin-bottom:4px}
.testimonial-info p{font-size:14px;color:var(--text-light)}
.testimonial-stars{color:#ffc107;margin-bottom:12px}
.testimonial-text{color:var(--text-light);font-size:15px;line-height:1.7}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.news-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.news-card-image{height:200px;overflow:hidden}
.news-card-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.news-card:hover .news-card-image img{transform:scale(1.1)}
.news-card-content{padding:20px}
.news-card-date{font-size:13px;color:var(--text-light);margin-bottom:8px}
.news-card-title{font-size:18px;font-weight:600;margin-bottom:12px;line-height:1.4}
.news-card-title:hover{color:var(--primary)}
.news-card-excerpt{font-size:14px;color:var(--text-light);line-height:1.6}
.cta{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);text-align:center;padding:80px 0}
.cta h2{font-size:36px;margin-bottom:16px}
.cta p{font-size:18px;opacity:.9;margin-bottom:32px}
footer{background:#1a1a2e;color:rgba(255,255,255,.8);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand h3{color:var(--white);font-size:24px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.footer-social a:hover{background:var(--primary)}
.footer-column h4{color:var(--white);font-size:16px;margin-bottom:20px}
.footer-column ul{list-style:none}
.footer-column li{margin-bottom:12px}
.footer-column a{font-size:14px;transition:var(--transition)}
.footer-column a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:30px;text-align:center;font-size:14px}
.download-hero{padding:140px 0 60px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:var(--white)}
.download-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.download-info h1{font-size:42px;font-weight:800;margin-bottom:16px}
.download-info p{font-size:18px;opacity:.9;margin-bottom:32px}
.download-stats{display:flex;gap:32px;margin-bottom:32px}
.download-stat{text-align:center}
.download-stat-value{font-size:28px;font-weight:700}
.download-stat-label{font-size:14px;opacity:.8}
.download-versions{padding:60px 0}
.version-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.version-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);border:2px solid transparent;transition:var(--transition)}
.version-card:hover{border-color:var(--primary);transform:translateY(-4px)}
.version-card.popular{border-color:var(--primary)}
.version-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.version-name{font-size:24px;font-weight:700}
.version-badge{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);padding:4px 12px;border-radius:20px;font-size:12px}
.version-size{color:var(--text-light);font-size:14px;margin-bottom:16px}
.version-features{list-style:none;margin:20px 0}
.version-features li{padding:8px 0;border-bottom:1px solid var(--bg);display:flex;align-items:center;gap:8px;font-size:14px}
.version-features li::before{content:'✓';color:var(--primary);font-weight:700}
.system-requirements{background:var(--bg);padding:60px 0}
.requirements-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.requirement-item{background:var(--white);border-radius:var(--radius);padding:20px;display:flex;align-items:center;gap:16px}
.requirement-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--white);font-size:20px}
.requirement-info h4{font-size:16px;margin-bottom:4px}
.requirement-info p{font-size:14px;color:var(--text-light)}
.install-steps{padding:60px 0}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1000px;margin:0 auto}
.step-card{text-align:center;position:relative}
.step-number{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin:0 auto 16px}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-light)}
.news-list{padding:140px 0 60px}
.news-list-header{text-align:center;margin-bottom:40px}
.news-list-header h1{font-size:36px;font-weight:700;margin-bottom:16px}
.news-filters{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.news-filter{padding:8px 20px;border-radius:20px;background:var(--bg);cursor:pointer;transition:var(--transition);font-size:14px}
.news-filter:hover,.news-filter.active{background:var(--primary);color:var(--white)}
.news-article{padding:140px 0 60px}
.article-header{max-width:800px;margin:0 auto 40px;text-align:center}
.article-breadcrumb{display:flex;justify-content:center;gap:8px;font-size:14px;color:var(--text-light);margin-bottom:20px}
.article-breadcrumb a:hover{color:var(--primary)}
.article-title{font-size:36px;font-weight:700;line-height:1.3;margin-bottom:16px}
.article-meta{display:flex;justify-content:center;gap:24px;font-size:14px;color:var(--text-light)}
.article-content{display:grid;grid-template-columns:1fr 300px;gap:40px;max-width:1200px;margin:0 auto}
.article-body{background:var(--white);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.article-body h2{font-size:24px;margin:32px 0 16px;padding-left:12px;border-left:4px solid var(--primary)}
.article-body p{margin-bottom:16px;line-height:1.8;color:var(--text-light)}
.article-body img{border-radius:var(--radius);margin:20px 0}
.article-sidebar{position:sticky;top:100px;align-self:start}
.sidebar-card{background:var(--white);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}
.sidebar-title{font-size:16px;font-weight:600;margin-bottom:16px;padding-left:12px;border-left:4px solid var(--primary)}
.toc-list{list-style:none}
.toc-item{padding:8px 0;border-bottom:1px solid var(--bg);font-size:14px}
.toc-item a{color:var(--text-light);transition:var(--transition)}
.toc-item a:hover,.toc-item.active a{color:var(--primary);font-weight:600}
.hot-news-list{list-style:none}
.hot-news-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--bg)}
.hot-news-rank{width:24px;height:24px;background:var(--bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.hot-news-item:nth-child(1) .hot-news-rank{background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:var(--white)}
.hot-news-item:nth-child(2) .hot-news-rank{background:linear-gradient(135deg,#ffa502,#ff6348);color:var(--white)}
.hot-news-item:nth-child(3) .hot-news-rank{background:linear-gradient(135deg,#ffd700,#ffb142);color:var(--white)}
.hot-news-title{font-size:14px;line-height:1.4}
.hot-news-title:hover{color:var(--primary)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{padding:6px 12px;background:var(--bg);border-radius:20px;font-size:12px;transition:var(--transition);cursor:pointer}
.tag:hover{background:var(--primary);color:var(--white)}
.article-nav{display:flex;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid var(--bg)}
.article-nav a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-light)}
.article-nav a:hover{color:var(--primary)}
.related-news{margin-top:40px}
.related-news h3{font-size:20px;margin-bottom:20px}
.comments-section{margin-top:40px}
.comments-section h3{font-size:20px;margin-bottom:20px}
.comment{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--bg)}
.comment-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;flex-shrink:0}
.comment-content{flex:1}
.comment-header{display:flex;justify-content:space-between;margin-bottom:8px}
.comment-name{font-weight:600;font-size:14px}
.comment-date{font-size:12px;color:var(--text-light)}
.comment-text{font-size:14px;color:var(--text-light);line-height:1.6}
.sitemap-page{padding:140px 0 60px}
.sitemap-content{max-width:800px;margin:0 auto}
.sitemap-section{margin-bottom:40px}
.sitemap-section h2{font-size:24px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--primary)}
.sitemap-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.sitemap-links a{padding:12px 16px;background:var(--bg);border-radius:8px;font-size:14px;transition:var(--transition)}
.sitemap-links a:hover{background:var(--primary);color:var(--white)}
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-content h1{font-size:120px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--primary-dark));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.error-content h2{font-size:24px;margin:16px 0}
.error-content p{color:var(--text-light);margin-bottom:32px}
.countdown{font-size:18px;color:var(--primary);font-weight:600}
@media(max-width:992px){.nav-menu{position:fixed;top:70px;left:0;right:0;background:var(--white);flex-direction:column;padding:20px;box-shadow:var(--shadow);transform:translateY(-120%);transition:var(--transition);opacity:0;visibility:hidden}.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}.nav-toggle{display:flex}.nav-cta{margin:16px 0 0}.hero-content,.download-content,.article-content{grid-template-columns:1fr}.hero-text h1{font-size:36px}.pricing-grid{grid-template-columns:1fr}.steps-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.section{padding:60px 0}.section-title h2{font-size:28px}.hero{padding:120px 0 60px}.hero-text h1{font-size:32px}.hero-stats{flex-wrap:wrap;gap:20px}.features-grid,.scenarios-grid,.testimonials-grid,.news-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}}
@media(max-width:480px){.hero-text h1{font-size:28px}.hero-buttons{flex-direction:column}.btn{width:100%}.demo-stats{grid-template-columns:1fr}.steps-grid{grid-template-columns:1fr}}