*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#6366f1;--primary-dark:#4f46e5;--secondary:#8b5cf6;--accent:#ec4899;--dark:#1e293b;--light:#f8fafc;--gray:#64748b;--success:#10b981;--warning:#f59e0b;--gradient:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%)}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;line-height:1.6;color:var(--dark);background:var(--light);overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:all .3s}
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 28px;border-radius:50px;font-weight:600;font-size:15px;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 15px rgba(99,102,241,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(99,102,241,.5)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:16px 36px;font-size:17px}
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);transition:all .3s;box-shadow:0 2px 20px rgba(0,0,0,.05)}
header.scrolled{background:rgba(255,255,255,.98);box-shadow:0 4px 30px rgba(0,0,0,.1)}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:70px;max-width:1200px;margin:0 auto;padding:0 20px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.logo img{width:36px;height:36px}
.nav-menu{display:flex;align-items:center;gap:8px;list-style:none}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:5px;padding:10px 16px;border-radius:8px;font-weight:500;color:var(--dark);transition:all .3s}
.nav-link:hover{background:rgba(99,102,241,.1);color:var(--primary)}
.nav-link .arrow{font-size:10px;transition:transform .3s}
.nav-item:hover .arrow{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:0;min-width:200px;background:#fff;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.12);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-item{display:block;padding:10px 16px;border-radius:8px;font-size:14px;color:var(--gray);transition:all .3s}
.dropdown-item:hover{background:rgba(99,102,241,.1);color:var(--primary)}
.nav-btn{margin-left:16px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.hamburger span{width:24px;height:2px;background:var(--dark);transition:all .3s}
.hero{min-height:100vh;display:flex;align-items:center;padding:100px 0 60px;background:linear-gradient(135deg,#f0f4ff 0%,#fdf2f8 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:80%;height:200%;background:radial-gradient(circle,rgba(99,102,241,.1) 0%,transparent 70%);animation:pulse 8s ease-in-place infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
.hero-container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1200px;margin:0 auto;padding:0 20px}
.hero-content{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:rgba(99,102,241,.1);border-radius:50px;font-size:13px;color:var(--primary);font-weight:600;margin-bottom:24px}
.hero-title{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:18px;color:var(--gray);margin-bottom:32px;line-height:1.7}
.hero-buttons{display:flex;gap:16px;margin-bottom:40px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px}
.stat-item{text-align:center}
.stat-value{font-size:32px;font-weight:800;color:var(--primary)}
.stat-label{font-size:13px;color:var(--gray);margin-top:4px}
.hero-demo{position:relative;z-index:2}
.demo-container{background:#fff;border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,.1);padding:24px;position:relative}
.demo-header{display:flex;align-items:center;gap:8px;padding-bottom:16px;border-bottom:1px solid #e2e8f0;margin-bottom:20px}
.demo-dot{width:12px;height:12px;border-radius:50%}
.demo-dot:nth-child(1){background:#ef4444}
.demo-dot:nth-child(2){background:#f59e0b}
.demo-dot:nth-child(3){background:#10b981}
.demo-screen{background:linear-gradient(135deg,#1e293b 0%,#334155 100%);border-radius:12px;padding:24px;min-height:300px}
.demo-map{position:relative;height:200px;background:rgba(255,255,255,.05);border-radius:8px;margin-bottom:20px;overflow:hidden}
.demo-map::before{content:'';position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="30" r="2" fill="%236366f1" opacity="0.5"/><circle cx="50" cy="50" r="2" fill="%238b5cf6" opacity="0.5"/><circle cx="80" cy="40" r="2" fill="%23ec4899" opacity="0.5"/><circle cx="35" cy="70" r="2" fill="%236366f1" opacity="0.5"/><circle cx="65" cy="25" r="2" fill="%238b5cf6" opacity="0.5"/></svg>');background-size:cover}
.demo-node{position:absolute;width:16px;height:16px;border-radius:50%;background:var(--primary);box-shadow:0 0 20px var(--primary);animation:nodePulse 2s infinite}
.demo-node:nth-child(1){top:20%;left:20%}
.demo-node:nth-child(2){top:50%;left:50%;background:var(--secondary);box-shadow:0 0 20px var(--secondary)}
.demo-node:nth-child(3){top:30%;left:75%;background:var(--accent);box-shadow:0 0 20px var(--accent)}
@keyframes nodePulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.7}}
.demo-controls{display:flex;gap:12px;flex-wrap:wrap}
.demo-btn{flex:1;min-width:100px;padding:12px 16px;border-radius:8px;border:none;font-weight:600;cursor:pointer;transition:all .3s;font-size:14px}
.demo-btn-connect{background:var(--gradient);color:#fff}
.demo-btn-connect:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(99,102,241,.4)}
.demo-btn-connect.connected{background:linear-gradient(135deg,#10b981 0%,#059669 100%)}
.demo-speed{display:flex;justify-content:space-around;padding:16px;background:rgba(255,255,255,.1);border-radius:8px;margin-top:16px}
.speed-item{text-align:center;color:#fff}
.speed-value{font-size:24px;font-weight:700}
.speed-label{font-size:12px;opacity:.8;margin-top:4px}
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:60px}
.section-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:rgba(99,102,241,.1);border-radius:50px;font-size:13px;color:var(--primary);font-weight:600;margin-bottom:16px}
.section-title{font-size:36px;font-weight:800;margin-bottom:16px}
.section-subtitle{font-size:16px;color:var(--gray);max-width:600px;margin:0 auto}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.feature-card{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .3s;border:1px solid #e2e8f0}
.feature-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,.1);border-color:var(--primary)}
.feature-icon{width:56px;height:56px;border-radius:12px;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px;color:#fff}
.feature-title{font-size:18px;font-weight:700;margin-bottom:12px}
.feature-desc{font-size:14px;color:var(--gray);line-height:1.7}
.scenarios-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.scenario-card{position:relative;border-radius:16px;overflow:hidden;height:280px;cursor:pointer}
.scenario-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.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:#fff}
.scenario-title{font-size:20px;font-weight:700;margin-bottom:8px}
.scenario-desc{font-size:14px;opacity:.9}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;max-width:1000px;margin:0 auto}
.pricing-card{background:#fff;border-radius:20px;padding:40px 32px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);border:2px solid #e2e8f0;transition:all .3s;position:relative}
.pricing-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.pricing-card.popular{border-color:var(--primary);transform:scale(1.05)}
.pricing-card.popular:hover{transform:scale(1.05) translateY(-8px)}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--gradient);color:#fff;padding:6px 20px;border-radius:50px;font-size:12px;font-weight:600}
.pricing-name{font-size:20px;font-weight:700;margin-bottom:8px}
.pricing-price{font-size:48px;font-weight:800;color:var(--primary);margin:20px 0}
.pricing-price span{font-size:16px;color:var(--gray);font-weight:400}
.pricing-features{list-style:none;margin:24px 0;text-align:left}
.pricing-features li{padding:10px 0;border-bottom:1px solid #f1f5f9;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--gray)}
.pricing-features li::before{content:'✓';color:var(--success);font-weight:700}
.faq-grid{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:16px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.05);border:1px solid #e2e8f0}
.faq-question{padding:20px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:all .3s}
.faq-question:hover{color:var(--primary)}
.faq-question::after{content:'+';font-size:24px;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s}
.faq-item.active .faq-answer{padding:0 24px 20px;max-height:500px}
.faq-answer p{color:var(--gray);line-height:1.8;font-size:14px}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.testimonial-card{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.testimonial-stars{color:#f59e0b;margin-bottom:16px;font-size:18px}
.testimonial-text{font-size:15px;color:var(--gray);line-height:1.8;margin-bottom:20px;font-style:italic}
.testimonial-author{display:flex;align-items:center;gap:12px}
.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:18px}
.testimonial-name{font-weight:600}
.testimonial-role{font-size:13px;color:var(--gray)}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.news-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .3s}
.news-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.news-image{height:200px;overflow:hidden}
.news-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-image img{transform:scale(1.1)}
.news-content{padding:24px}
.news-date{font-size:13px;color:var(--gray);margin-bottom:12px}
.news-title{font-size:18px;font-weight:700;margin-bottom:12px;line-height:1.4}
.news-title:hover{color:var(--primary)}
.news-excerpt{font-size:14px;color:var(--gray);line-height:1.7;margin-bottom:16px}
.news-link{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.cta-section{background:var(--gradient);padding:80px 0;text-align:center;color:#fff}
.cta-title{font-size:36px;font-weight:800;margin-bottom:16px}
.cta-subtitle{font-size:18px;opacity:.9;margin-bottom:32px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
footer{background:var(--dark);color:#fff;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand{max-width:300px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;margin-bottom:16px}
.footer-desc{font-size:14px;color:#94a3b8;line-height:1.8}
.footer-title{font-size:16px;font-weight:600;margin-bottom:20px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:#94a3b8;transition:all .3s}
.footer-links a:hover{color:#fff;padding-left:5px}
.footer-bottom{padding-top:30px;border-top:1px solid #334155;text-align:center;font-size:14px;color:#94a3b8}
@media(max-width:992px){.hero-container{grid-template-columns:1fr;gap:40px}.hero-title{font-size:36px}.hero-stats{gap:24px}.nav-menu{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all .3s;box-shadow:0 10px 30px rgba(0,0,0,.1)}.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}.hamburger{display:flex}.dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding-left:20px;display:none}.nav-item.active .dropdown{display:block}.pricing-card.popular{transform:none}.pricing-card.popular:hover{transform:translateY(-8px)}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:768px){.hero-title{font-size:28px}.hero-subtitle{font-size:16px}.section-title{font-size:28px}.hero-stats{flex-wrap:wrap;gap:20px}.stat-item{flex:1;min-width:100px}.footer-grid{grid-template-columns:1fr}}
@media(max-width:480px){.hero-buttons{flex-direction:column}.btn{width:100%}.hero-stats{flex-direction:column}.features-grid,.scenarios-grid,.pricing-grid,.testimonials-grid,.news-grid{grid-template-columns:1fr}}
.fade-in{opacity:0;transform:translateY(30px);transition:all .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}
.slide-left{opacity:0;transform:translateX(-50px);transition:all .6s}
.slide-left.visible{opacity:1;transform:translateX(0)}
.slide-right{opacity:0;transform:translateX(50px);transition:all .6s}
.slide-right.visible{opacity:1;transform:translateX(0)}
.news-detail-container{display:grid;grid-template-columns:1fr 320px;gap:40px;margin-top:40px}
.news-main{background:#fff;border-radius:16px;padding:40px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.news-sidebar{position:sticky;top:90px;height:fit-content}
.sidebar-card{background:#fff;border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.sidebar-title{font-size:16px;font-weight:700;margin-bottom:16px;padding-left:12px;border-left:3px solid var(--primary)}
.toc-list{list-style:none}
.toc-item{position:relative;padding:10px 0 10px 20px;border-left:2px solid #e2e8f0;margin-left:8px;font-size:14px;color:var(--gray);cursor:pointer;transition:all .3s}
.toc-item::before{content:'';position:absolute;left:-6px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:#e2e8f0;transition:all .3s}
.toc-item:hover,.toc-item.active{color:var(--primary);border-left-color:var(--primary)}
.toc-item.active::before{background:var(--primary)}
.hot-news-list{list-style:none}
.hot-news-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #f1f5f9}
.hot-news-item:last-child{border-bottom:none}
.hot-news-rank{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}
.hot-news-rank.rank-1{background:linear-gradient(135deg,#f59e0b,#ef4444)}
.hot-news-rank.rank-2{background:linear-gradient(135deg,#8b5cf6,#6366f1)}
.hot-news-rank.rank-3{background:linear-gradient(135deg,#ec4899,#8b5cf6)}
.hot-news-rank.rank-other{background:#94a3b8}
.hot-news-title{font-size:14px;color:var(--dark);transition:all .3s;flex:1}
.hot-news-item:hover .hot-news-title{color:var(--primary)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{padding:6px 14px;background:#f1f5f9;border-radius:50px;font-size:13px;color:var(--gray);cursor:pointer;transition:all .3s}
.tag-item:hover{background:rgba(99,102,241,.1);color:var(--primary)}
.news-header{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid #e2e8f0}
.news-meta{display:flex;gap:16px;margin-bottom:16px;font-size:14px;color:var(--gray)}
.news-body h2{font-size:22px;font-weight:700;margin:32px 0 16px;padding-left:12px;border-left:4px solid var(--primary)}
.news-body p{margin-bottom:16px;line-height:1.9;color:#475569}
.news-body img{border-radius:12px;margin:24px 0}
.news-nav{display:flex;justify-content:space-between;margin-top:40px;padding-top:24px;border-top:1px solid #e2e8f0}
.news-nav a{display:flex;align-items:center;gap:8px;padding:12px 20px;background:#f8fafc;border-radius:8px;font-size:14px;transition:all .3s}
.news-nav a:hover{background:rgba(99,102,241,.1);color:var(--primary)}
.related-news{margin-top:40px}
.related-news h3{font-size:18px;font-weight:700;margin-bottom:20px}
.comments-section{margin-top:40px;padding-top:32px;border-top:1px solid #e2e8f0}
.comments-title{font-size:18px;font-weight:700;margin-bottom:24px}
.comment-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid #f1f5f9}
.comment-item:last-child{border-bottom:none}
.comment-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px;flex-shrink:0}
.comment-content{flex:1}
.comment-header{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.comment-name{font-weight:600;font-size:15px}
.comment-date{font-size:13px;color:var(--gray)}
.comment-text{font-size:14px;color:#475569;line-height:1.7}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--gray);margin-bottom:24px}
.breadcrumb a{color:var(--gray);transition:all .3s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--primary)}
@media(max-width:992px){.news-detail-container{grid-template-columns:1fr}.news-sidebar{position:static}}
@media(max-width:768px){.news-main{padding:24px}.news-nav{flex-direction:column;gap:12px}.news-nav a{justify-content:center}}