/* === Reset & Base === */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:#0B0F19;color:#E2E8F0;line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:all .3s ease}
img{max-width:100%;height:auto}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === Navigation === */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:all .3s ease;background:rgba(11,15,25,.6);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.05)}
.navbar .container{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#3B82F6,#06B6D4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:#94A3B8;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-btn{background:linear-gradient(135deg,#3B82F6,#06B6D4);color:#fff!important;padding:8px 20px;border-radius:8px;font-weight:600}
.nav-btn:hover{box-shadow:0 0 20px rgba(59,130,246,.4);transform:translateY(-1px)}
.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer}
.menu-toggle span{width:24px;height:2px;background:#fff;border-radius:2px}

/* === Hero === */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;background:linear-gradient(180deg,#0B0F19 0%,#1A2540 100%);padding:120px 20px 80px;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(59,130,246,.08) 0%,transparent 50%),radial-gradient(circle at 70% 50%,rgba(6,182,212,.06) 0%,transparent 50%);animation:heroGlow 8s ease-in-out infinite alternate}
@keyframes heroGlow{0%{transform:translate(0,0)}100%{transform:translate(-2%,2%)}}
.hero-content{position:relative;z-index:2;max-width:800px}
.hero h1{font-size:3.2rem;font-weight:800;line-height:1.2;margin-bottom:20px;background:linear-gradient(135deg,#fff 0%,#94A3B8 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .subtitle{font-size:1.2rem;color:#94A3B8;margin-bottom:24px;line-height:1.8}
.trust-line{color:#64748B;font-size:.9rem;margin-bottom:36px}
.trust-line .stars{color:#FBBF24;letter-spacing:2px}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.btn-primary{display:inline-block;background:linear-gradient(135deg,#3B82F6,#06B6D4);color:#fff;padding:14px 36px;border-radius:10px;font-weight:700;font-size:1.05rem;transition:all .3s ease}
.btn-primary:hover{box-shadow:0 0 30px rgba(59,130,246,.5);transform:scale(1.02)}
.btn-secondary{display:inline-block;border:1px solid rgba(59,130,246,.5);color:#93C5FD;padding:14px 36px;border-radius:10px;font-weight:600;font-size:1.05rem;transition:all .3s ease}
.btn-secondary:hover{background:rgba(59,130,246,.1);border-color:#3B82F6}
.platform-icons{display:flex;gap:24px;justify-content:center;color:#64748B;font-size:.85rem;flex-wrap:wrap}
.platform-icons span{display:flex;align-items:center;gap:6px}

/* === Section Common === */
.section{padding:100px 0}
.section-header{text-align:center;margin-bottom:60px}
.section-header h2{font-size:2.2rem;font-weight:700;margin-bottom:16px;color:#fff}
.section-header p{color:#94A3B8;font-size:1.05rem;max-width:600px;margin:0 auto}

/* === Features === */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:36px 24px;text-align:center;transition:all .3s ease}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(59,130,246,.3);box-shadow:0 8px 32px rgba(0,0,0,.3)}
.feature-icon{font-size:2.5rem;margin-bottom:16px;display:block}
.feature-card h3{font-size:1.15rem;font-weight:600;margin-bottom:10px;color:#fff}
.feature-card p{color:#94A3B8;font-size:.9rem;line-height:1.7}

/* === Nodes === */
.nodes-section{background:linear-gradient(180deg,#0B0F19 0%,#0F1729 50%,#0B0F19 100%)}
.nodes-content{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.world-map{position:relative;background:rgba(30,41,59,.3);border-radius:16px;padding:40px;border:1px solid rgba(255,255,255,.05);min-height:320px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.world-map::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(59,130,246,.05) 0%,transparent 70%)}
.map-dot{position:absolute;width:8px;height:8px;background:#3B82F6;border-radius:50%;box-shadow:0 0 8px rgba(59,130,246,.6)}
.map-dot::after{content:'';position:absolute;inset:-4px;border-radius:50%;border:1px solid rgba(59,130,246,.3);animation:pulse 2s ease-out infinite}
@keyframes pulse{0%{transform:scale(1);opacity:1}100%{transform:scale(2);opacity:0}}
.map-dot:nth-child(1){top:30%;left:25%}
.map-dot:nth-child(2){top:35%;left:48%}
.map-dot:nth-child(3){top:28%;left:72%}
.map-dot:nth-child(4){top:55%;left:15%}
.map-dot:nth-child(5){top:60%;left:55%}
.map-dot:nth-child(6){top:40%;left:85%}
.map-dot:nth-child(7){top:20%;left:60%}
.map-dot:nth-child(8){top:50%;left:35%}
.map-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.03) 1px,transparent 1px);background-size:40px 40px}
.nodes-info{display:flex;flex-direction:column;gap:20px}
.node-stat{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:20px 24px;display:flex;align-items:center;gap:16px}
.node-stat .dot{width:10px;height:10px;background:#22C55E;border-radius:50%;box-shadow:0 0 8px rgba(34,197,94,.5)}
.node-stat .info h4{font-size:1rem;color:#fff;margin-bottom:4px}
.node-stat .info p{font-size:.85rem;color:#64748B}
.btn-outline{display:inline-block;border:1px solid rgba(59,130,246,.4);color:#93C5FD;padding:12px 28px;border-radius:8px;font-weight:600;text-align:center;margin-top:12px;transition:all .3s ease}
.btn-outline:hover{background:rgba(59,130,246,.1);border-color:#3B82F6}

/* === Platforms === */
.platforms-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px}
.platform-card{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:32px 20px;text-align:center;transition:all .3s ease}
.platform-card:hover{border-color:rgba(59,130,246,.3);transform:translateY(-2px)}
.platform-card .icon{font-size:2.5rem;margin-bottom:12px;display:block}
.platform-card h3{font-size:1rem;color:#fff;margin-bottom:6px}
.platform-card .version{color:#64748B;font-size:.8rem;margin-bottom:16px}
.platform-card .dl-btn{display:inline-block;background:rgba(59,130,246,.15);color:#93C5FD;padding:8px 20px;border-radius:6px;font-size:.85rem;font-weight:600;border:1px solid rgba(59,130,246,.3)}
.platform-card .dl-btn:hover{background:rgba(59,130,246,.25)}
.sys-req{text-align:center;color:#64748B;font-size:.85rem;margin-top:16px}

/* === Reviews === */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:32px;position:relative}
.review-card::before{content:'\201C';position:absolute;top:16px;left:24px;font-size:3rem;color:rgba(59,130,246,.2);font-family:Georgia,serif;line-height:1}
.review-stars{color:#FBBF24;font-size:.9rem;margin-bottom:12px;letter-spacing:2px}
.review-text{color:#CBD5E1;font-size:.95rem;line-height:1.8;margin-bottom:20px;font-style:italic}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#3B82F6,#06B6D4);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-name{font-size:.9rem;color:#fff;font-weight:600}
.review-role{font-size:.8rem;color:#64748B}

/* === Pricing === */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.pricing-card{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:20px;padding:40px 32px;text-align:center;transition:all .3s ease;position:relative}
.pricing-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.pricing-card.popular{border-color:rgba(59,130,246,.5);background:rgba(30,41,59,.7)}
.popular-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#3B82F6,#06B6D4);color:#fff;padding:4px 16px;border-radius:20px;font-size:.75rem;font-weight:700}
.pricing-card h3{font-size:1.3rem;color:#fff;margin-bottom:8px}
.price{font-size:2.8rem;font-weight:800;color:#fff;margin:16px 0}
.price span{font-size:1rem;color:#64748B;font-weight:400}
.price .currency{font-size:1.4rem;vertical-align:top;margin-right:2px}
.pricing-features{text-align:left;margin:24px 0;display:flex;flex-direction:column;gap:12px}
.pricing-features li{color:#94A3B8;font-size:.9rem;display:flex;align-items:center;gap:8px}
.pricing-features li .check{color:#22C55E}
.pricing-features li .cross{color:#64748B}
.pricing-btn{display:inline-block;width:100%;padding:12px;border-radius:8px;font-weight:600;font-size:.95rem;margin-top:8px;transition:all .3s ease}
.pricing-btn.primary{background:linear-gradient(135deg,#3B82F6,#06B6D4);color:#fff}
.pricing-btn.primary:hover{box-shadow:0 0 20px rgba(59,130,246,.4)}
.pricing-btn.secondary{border:1px solid rgba(59,130,246,.3);color:#93C5FD}
.pricing-btn.secondary:hover{background:rgba(59,130,246,.1)}
.pricing-note{text-align:center;margin-top:32px;color:#64748B;font-size:.85rem}
.payment-icons{display:flex;gap:16px;justify-content:center;margin-top:12px;color:#64748B;font-size:.85rem}

/* === Stats === */
.stats-section{background:linear-gradient(180deg,#0B0F19,#0F1729);position:relative}
.stats-section::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.02) 1px,transparent 1px);background-size:60px 60px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1}
.stat-item{text-align:center}
.stat-number{font-size:3rem;font-weight:800;background:linear-gradient(135deg,#3B82F6,#06B6D4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px}
.stat-label{color:#94A3B8;font-size:.95rem}

/* === Bottom CTA === */
.bottom-cta{padding:100px 0;text-align:center;background:linear-gradient(135deg,#0F172A,#1E293B);position:relative;overflow:hidden}
.bottom-cta::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(59,130,246,.08) 0%,transparent 70%);pointer-events:none}
.bottom-cta h2{font-size:2.4rem;font-weight:800;color:#fff;margin-bottom:16px;position:relative}
.bottom-cta p{color:#94A3B8;font-size:1.1rem;margin-bottom:36px;position:relative}

/* === Footer === */
.footer{background:#0A0E17;padding:60px 0 30px;border-top:1px solid rgba(255,255,255,.05)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{font-size:1.3rem;margin-bottom:12px;display:inline-block}
.footer-brand p{color:#64748B;font-size:.85rem;line-height:1.7}
.footer-col h4{color:#fff;font-size:.9rem;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:#64748B;font-size:.85rem;margin-bottom:10px}
.footer-col a:hover{color:#93C5FD}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.05);flex-wrap:wrap;gap:16px}
.footer-bottom p{color:#475569;font-size:.8rem}
.social-links{display:flex;gap:16px}
.social-links a{color:#475569;font-size:.85rem}
.social-links a:hover{color:#93C5FD}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:rgba(30,41,59,.5);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:28px 32px}
.faq-item h3{font-size:1.1rem;color:#fff;margin-bottom:16px;font-weight:600}
.faq-item ol{padding-left:20px;display:flex;flex-direction:column;gap:8px}
.faq-item ol li{color:#94A3B8;font-size:.9rem;line-height:1.8;list-style:decimal}

/* === Detail Page Hero === */
.page-hero{padding:140px 0 60px;text-align:center;background:linear-gradient(180deg,#0B0F19,#1A2540)}
.page-hero h1{font-size:2.6rem;font-weight:800;color:#fff;margin-bottom:16px}
.page-hero p{color:#94A3B8;font-size:1.1rem;max-width:600px;margin:0 auto}

/* === Breadcrumb === */
.breadcrumb{padding:12px 0;color:#64748B;font-size:.85rem}
.breadcrumb a{color:#64748B}
.breadcrumb a:hover{color:#93C5FD}
.breadcrumb span{margin:0 8px}

/* === Responsive === */
@media(max-width:1024px){
.features-grid{grid-template-columns:repeat(2,1fr)}
.nodes-content{grid-template-columns:1fr}
.platforms-grid{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
.footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.nav-links{display:none}
.menu-toggle{display:flex}
.nav-links.open{display:flex;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(11,15,25,.95);backdrop-filter:blur(20px);flex-direction:column;justify-content:center;align-items:center;gap:32px;z-index:999}
.hero h1{font-size:2rem}
.hero .subtitle{font-size:1rem}
.hero-buttons{flex-direction:column;align-items:center}
.btn-primary,.btn-secondary{width:100%;max-width:300px;text-align:center}
.features-grid{grid-template-columns:1fr}
.reviews-grid{grid-template-columns:1fr}
.pricing-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr}
.section{padding:60px 0}
.section-header h2{font-size:1.6rem}
.bottom-cta h2{font-size:1.6rem}
.page-hero h1{font-size:1.8rem}
.platforms-grid{grid-template-columns:1fr}
}