*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0a1628;--secondary:#1a2744;--accent:#00d4ff;--accent2:#7c3aed;--text:#e2e8f0;--text-muted:#94a3b8;--bg:#060d1b;--card:#0f1d35;--border:#1e3a5f;--success:#10b981;--warning:#f59e0b;--gradient:linear-gradient(135deg,#00d4ff 0%,#7c3aed 100%);--shadow:0 4px 24px rgba(0,212,255,.12)}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:all .3s}
a:hover{color:#fff;text-shadow:0 0 8px rgba(0,212,255,.5)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(6,13,27,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:12px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:#fff}
.logo img{width:32px;height:32px;border-radius:6px}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{color:var(--text-muted);font-size:.9rem;font-weight:500;padding:6px 0;position:relative}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gradient);transition:width .3s}
.nav-links a:hover::after{width:100%}
.header-cta{display:flex;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:8px;font-weight:600;font-size:.9rem;transition:all .3s;cursor:pointer;border:none;text-decoration:none}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 16px rgba(0,212,255,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,212,255,.45);color:#fff}
.btn-outline{border:1px solid var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:rgba(0,212,255,.1);color:#fff}
.btn-sm{padding:8px 16px;font-size:.8rem}
/* Hero */
.hero{padding:140px 0 80px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(0,212,255,.08) 0%,transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(124,58,237,.06) 0%,transparent 70%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,212,255,.1);border:1px solid rgba(0,212,255,.2);border-radius:20px;padding:6px 16px;font-size:.8rem;color:var(--accent);margin-bottom:20px}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:2.8rem;font-weight:800;line-height:1.2;margin-bottom:16px;background:linear-gradient(135deg,#fff 0%,#94a3b8 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero h1 span{background:var(--gradient);-webkit-background-clip:text;background-clip:text}
.hero-desc{font-size:1.1rem;color:var(--text-muted);margin-bottom:32px;max-width:520px}
.hero-actions{display:flex;gap:16px;margin-bottom:40px}
.hero-stats{display:flex;gap:40px}
.stat-item{text-align:center}
.stat-num{font-size:1.8rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.75rem;color:var(--text-muted);margin-top:4px}
/* Phone Simulator */
.phone-simulator{position:relative;width:320px;height:580px;margin:0 auto}
.phone-frame{width:100%;height:100%;background:#1a1a2e;border-radius:36px;border:3px solid #2a2a4a;box-shadow:0 20px 60px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.1);overflow:hidden;position:relative}
.phone-notch{position:absolute;top:0;left:50%;transform:translateX(-50%);width:120px;height:28px;background:#0a0a1a;border-radius:0 0 16px 16px;z-index:10}
.phone-screen{position:absolute;top:36px;left:12px;right:12px;bottom:12px;background:linear-gradient(180deg,#0f172a 0%,#1e293b 100%);border-radius:24px;overflow:hidden;padding:16px}
.sim-status-bar{display:flex;justify-content:space-between;align-items:center;font-size:.65rem;color:var(--text-muted);margin-bottom:16px;padding:0 4px}
.sim-app-header{text-align:center;margin-bottom:20px}
.sim-app-title{font-size:1rem;font-weight:700;color:#fff}
.sim-app-sub{font-size:.65rem;color:var(--text-muted)}
.sim-connect-btn{width:100px;height:100px;border-radius:50%;background:var(--gradient);margin:16px auto;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 32px rgba(0,212,255,.4);position:relative}
.sim-connect-btn::after{content:'';position:absolute;inset:-8px;border-radius:50%;border:2px solid rgba(0,212,255,.3);animation:ripple 2s infinite}
@keyframes ripple{0%{transform:scale(1);opacity:1}100%{transform:scale(1.3);opacity:0}}
.sim-connect-icon{width:0;height:0;border-left:18px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.sim-status{text-align:center;margin:12px 0}
.sim-status-text{font-size:.75rem;color:var(--success);font-weight:600}
.sim-server-info{background:rgba(255,255,255,.05);border-radius:12px;padding:12px;margin-top:12px}
.sim-server-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;font-size:.7rem}
.sim-server-row span:first-child{color:var(--text-muted)}
.sim-server-row span:last-child{color:#fff;font-weight:500}
.sim-traffic{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.sim-traffic-item{background:rgba(255,255,255,.03);border-radius:8px;padding:8px;text-align:center}
.sim-traffic-val{font-size:.85rem;font-weight:700;color:var(--accent)}
.sim-traffic-label{font-size:.6rem;color:var(--text-muted)}
.sim-nav{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-around;padding:10px 0;background:rgba(0,0,0,.3);border-top:1px solid rgba(255,255,255,.05)}
.sim-nav-item{font-size:.55rem;color:var(--text-muted);text-align:center}
.sim-nav-item.active{color:var(--accent)}
.sim-nav-icon{width:18px;height:18px;margin:0 auto 2px;border-radius:4px;background:currentColor;opacity:.3}
.sim-nav-item.active .sim-nav-icon{opacity:.8}
/* Announcement */
.announcement{background:rgba(0,212,255,.05);border:1px solid rgba(0,212,255,.15);border-radius:12px;padding:16px 24px;margin:40px auto;max-width:800px;display:flex;align-items:center;gap:12px}
.announcement-icon{color:var(--warning);font-size:1.2rem;flex-shrink:0}
.announcement-text{font-size:.85rem;color:var(--text-muted)}
.announcement-text strong{color:var(--accent)}
/* Sections */
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;background:rgba(0,212,255,.1);border:1px solid rgba(0,212,255,.2);border-radius:16px;padding:4px 14px;font-size:.75rem;color:var(--accent);margin-bottom:12px}
.section-title{font-size:2rem;font-weight:800;margin-bottom:12px}
.section-desc{color:var(--text-muted);max-width:600px;margin:0 auto;font-size:.95rem}
/* Features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px 24px;transition:all .3s;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient);opacity:0;transition:opacity .3s}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(0,212,255,.3);box-shadow:var(--shadow)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:48px;height:48px;border-radius:12px;background:rgba(0,212,255,.1);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:1.4rem}
.feature-card h3{font-size:1.1rem;margin-bottom:8px;font-weight:700}
.feature-card p{font-size:.85rem;color:var(--text-muted);line-height:1.6}
/* Comparison */
.comparison-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:16px;overflow:hidden;border:1px solid var(--border)}
.comparison-table th{background:var(--secondary);padding:16px 20px;text-align:left;font-size:.85rem;font-weight:600;color:var(--accent)}
.comparison-table td{padding:14px 20px;border-top:1px solid var(--border);font-size:.85rem}
.comparison-table tr:hover td{background:rgba(0,212,255,.03)}
.check{color:var(--success);font-weight:700}
.cross{color:#ef4444;font-weight:700}
/* News Tabs */
.news-tabs{display:flex;gap:8px;margin-bottom:32px;justify-content:center;flex-wrap:wrap}
.news-tab{padding:8px 20px;border-radius:20px;font-size:.85rem;color:var(--text-muted);border:1px solid var(--border);transition:all .3s}
.news-tab:hover,.news-tab.active{background:var(--gradient);color:#fff;border-color:transparent}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all .3s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card-img{width:100%;height:180px;object-fit:cover;background:var(--secondary)}
.news-card-body{padding:20px}
.news-card-cat{font-size:.7rem;color:var(--accent);text-transform:uppercase;font-weight:600;margin-bottom:8px}
.news-card h3{font-size:.95rem;margin-bottom:8px;line-height:1.4}
.news-card p{font-size:.8rem;color:var(--text-muted);line-height:1.5;margin-bottom:12px}
.news-card-meta{display:flex;justify-content:space-between;font-size:.7rem;color:var(--text-muted)}
/* Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px}
.review-stars{color:var(--warning);margin-bottom:12px;font-size:.9rem}
.review-text{font-size:.85rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px;font-style:italic}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-name{font-size:.85rem;font-weight:600}
.review-role{font-size:.7rem;color:var(--text-muted)}
/* Download */
.download-section{background:linear-gradient(180deg,rgba(0,212,255,.03) 0%,transparent 100%)}
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.download-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px 16px;text-align:center;transition:all .3s}
.download-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow)}
.download-icon{font-size:2.2rem;margin-bottom:12px}
.download-card h3{font-size:.9rem;margin-bottom:6px}
.download-card p{font-size:.7rem;color:var(--text-muted);margin-bottom:16px}
.download-card .btn{width:100%;padding:8px;font-size:.8rem}
/* Trust */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.trust-item{padding:24px}
.trust-num{font-size:2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.trust-label{font-size:.8rem;color:var(--text-muted);margin-top:4px}
/* Scenarios */
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;text-align:center;transition:all .3s}
.scenario-card:hover{transform:translateY(-4px);border-color:rgba(0,212,255,.3)}
.scenario-icon{font-size:2.4rem;margin-bottom:16px}
.scenario-card h3{font-size:1rem;margin-bottom:8px}
.scenario-card p{font-size:.8rem;color:var(--text-muted);line-height:1.6}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-question{padding:20px 24px;font-weight:600;font-size:.95rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:rgba(0,212,255,.03)}
.faq-toggle{color:var(--accent);font-size:1.2rem;transition:transform .3s}
.faq-item.open .faq-toggle{transform:rotate(45deg)}
.faq-answer{padding:0 24px 20px;font-size:.85rem;color:var(--text-muted);line-height:1.8;display:none}
.faq-item.open .faq-answer{display:block}
.faq-steps{list-style:none;counter-reset:step}
.faq-steps li{counter-increment:step;padding:8px 0 8px 32px;position:relative;border-left:2px solid var(--border);margin-left:12px}
.faq-steps li::before{content:counter(step);position:absolute;left:-12px;top:8px;width:22px;height:22px;border-radius:50%;background:var(--gradient);color:#fff;font-size:.7rem;display:flex;align-items:center;justify-content:center;font-weight:700}
.faq-steps li:last-child{border-left-color:transparent}
/* CTA */
.cta-section{text-align:center;padding:80px 0;position:relative}
.cta-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(0,212,255,.06) 0%,transparent 70%)}
.cta-title{font-size:2rem;font-weight:800;margin-bottom:16px}
.cta-desc{color:var(--text-muted);margin-bottom:32px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:16px;justify-content:center}
/* Footer */
.site-footer{background:var(--primary);border-top:1px solid var(--border);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{font-size:.8rem;color:var(--text-muted);margin-top:12px;line-height:1.7}
.footer-col h4{font-size:.85rem;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{font-size:.8rem;color:var(--text-muted)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:.75rem;color:var(--text-muted)}
.footer-sitemap{margin-top:16px;font-size:.75rem}
/* Breadcrumb */
.breadcrumb{padding:100px 0 20px;font-size:.8rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 8px;color:var(--border)}
/* Article */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:20px 0 60px}
.article-main{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:40px}
.article-toc{background:rgba(0,212,255,.03);border:1px solid rgba(0,212,255,.1);border-radius:12px;padding:20px;margin-bottom:32px}
.article-toc h4{font-size:.85rem;margin-bottom:12px;color:var(--accent)}
.article-toc ol{list-style:none;counter-reset:toc}
.article-toc li{counter-increment:toc;padding:4px 0 4px 24px;position:relative;font-size:.8rem}
.article-toc li::before{content:counter(toc) ".";position:absolute;left:4px;color:var(--accent);font-size:.75rem}
.article-toc a{color:var(--text-muted)}
.article-toc a:hover{color:var(--accent)}
.article-content h2{font-size:1.3rem;margin:32px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.article-content p{margin-bottom:16px;font-size:.9rem;line-height:1.8;color:var(--text-muted)}
.article-content img{border-radius:12px;margin:20px 0;border:1px solid var(--border)}
.article-sidebar{position:sticky;top:100px;align-self:start}
.sidebar-widget{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.sidebar-widget h4{font-size:.85rem;font-weight:700;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.sidebar-widget li{padding:8px 0;border-bottom:1px solid rgba(255,255,255,.03);font-size:.8rem}
.sidebar-widget li:last-child{border:none}
.sidebar-widget a{color:var(--text-muted)}
.sidebar-widget a:hover{color:var(--accent)}
.article-nav{display:flex;justify-content:space-between;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.article-nav a{font-size:.8rem;color:var(--text-muted)}
.article-nav a:hover{color:var(--accent)}
.article-comments{margin-top:40px}
.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--border)}
.comment-avatar{width:36px;height:36px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.75rem;font-weight:700;flex-shrink:0}
.comment-body{flex:1}
.comment-meta{display:flex;gap:12px;margin-bottom:4px;font-size:.75rem}
.comment-name{font-weight:600;color:#fff}
.comment-date{color:var(--text-muted)}
.comment-text{font-size:.8rem;color:var(--text-muted);line-height:1.6}
.related-articles{margin-top:40px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
/* 404 */
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-code{font-size:8rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.error-msg{font-size:1.2rem;color:var(--text-muted);margin:16px 0 32px}
/* Mobile */
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr;text-align:center}.phone-simulator{margin-top:40px}.features-grid,.news-grid,.reviews-grid,.scenarios-grid{grid-template-columns:repeat(2,1fr)}.download-grid{grid-template-columns:repeat(3,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}}
@media(max-width:640px){.hero h1{font-size:2rem}.features-grid,.news-grid,.reviews-grid,.scenarios-grid,.download-grid{grid-template-columns:1fr}.trust-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.nav-links{display:none}.hero-stats{gap:20px}.comparison-table{font-size:.75rem}.related-grid{grid-template-columns:1fr}}