*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0066FF;--primary-dark:#0052CC;--secondary:#00D4AA;--accent:#FF6B35;--bg:#FFFFFF;--bg-light:#F8FAFC;--bg-gray:#F1F5F9;--text:#1A202C;--text-light:#4A5568;--text-muted:#718096;--border:#E2E8F0;--shadow:0 2px 8px rgba(0,0,0,0.08);--shadow-lg:0 8px 24px rgba(0,0,0,0.12);--radius:8px;--radius-lg:16px;--max-width:1200px;--transition:all 0.3s ease}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.6;color:var(--text);background:var(--bg)}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:16px}
.section-subtitle{font-size:18px;color:var(--text-light);text-align:center;margin-bottom:48px}
.btn{display:inline-block;padding:12px 28px;border-radius:var(--radius);font-weight:600;text-align:center;transition:var(--transition);cursor:pointer;border:none;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-secondary{background:var(--secondary);color:#fff}
.btn-secondary:hover{background:#00B894;color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-large{padding:16px 36px;font-size:18px}
header{position:sticky;top:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:1000;padding:16px 0}
.nav{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;color:var(--text)}
.nav-logo img{width:32px;height:32px}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:var(--text);font-weight:500}
.nav-links a:hover{color:var(--primary)}
.nav-actions{display:flex;gap:16px;align-items:center}
.lang-switch{display:flex;gap:8px}
.lang-switch a{padding:6px 12px;border-radius:4px;font-size:14px;color:var(--text-light)}
.lang-switch a.active{background:var(--primary);color:#fff}
.hero{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:100px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><circle cx="100" cy="100" r="80" fill="rgba(255,255,255,0.05)"/><circle cx="1100" cy="500" r="120" fill="rgba(255,255,255,0.05)"/></svg>');opacity:0.3}
.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;margin-bottom:20px;line-height:1.2}
.hero-text p{font-size:20px;margin-bottom:32px;opacity:0.95}
.hero-selling-points{margin-bottom:32px}
.hero-selling-points li{margin-bottom:12px;font-size:16px;display:flex;align-items:center;gap:12px}
.hero-selling-points li::before{content:'✓';background:var(--secondary);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex-shrink:0}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.client-simulator{background:#1a1a2e;border-radius:var(--radius-lg);padding:20px;box-shadow:0 20px 60px rgba(0,0,0,0.3);position:relative}
.simulator-titlebar{display:flex;align-items:center;gap:8px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,0.1)}
.simulator-dot{width:12px;height:12px;border-radius:50%}
.simulator-dot.red{background:#ff5f56}
.simulator-dot.yellow{background:#ffbd2e}
.simulator-dot.green{background:#27c93f}
.simulator-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.simulator-logo{display:flex;align-items:center;gap:8px;color:#fff;font-weight:600}
.simulator-status{display:flex;align-items:center;gap:8px;color:var(--secondary);font-size:14px}
.simulator-status::before{content:'';width:8px;height:8px;background:var(--secondary);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.5}}
.simulator-connect{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border:none;padding:20px 40px;border-radius:50px;font-size:18px;font-weight:700;margin:20px auto;display:block;cursor:pointer;transition:var(--transition);box-shadow:0 8px 24px rgba(0,102,255,0.4)}
.simulator-connect:hover{transform:scale(1.05);box-shadow:0 12px 32px rgba(0,102,255,0.5)}
.simulator-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.stat-item{text-align:center;padding:12px;background:rgba(255,255,255,0.05);border-radius:var(--radius)}
.stat-value{font-size:24px;font-weight:700;color:var(--secondary)}
.stat-label{font-size:12px;color:rgba(255,255,255,0.7);margin-top:4px}
.simulator-servers{margin-top:20px}
.server-item{display:flex;align-items:center;justify-content:space-between;padding:12px;background:rgba(255,255,255,0.05);border-radius:var(--radius);margin-bottom:8px}
.server-flag{font-size:20px}
.server-name{color:#fff;font-size:14px}
.server-ping{color:var(--secondary);font-size:12px}
.features{background:var(--bg-light)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{background:#fff;padding:32px;border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.feature-icon{width:64px;height:64px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:32px}
.feature-card h3{font-size:20px;margin-bottom:12px}
.feature-card p{color:var(--text-light);line-height:1.6}
.announcement{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;padding:40px 0;text-align:center}
.announcement-content{font-size:18px}
.trust{background:var(--bg-light)}
.trust-logos{display:flex;justify-content:center;align-items:center;gap:48px;flex-wrap:wrap}
.trust-logo{padding:20px 32px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);font-weight:600;color:var(--text-light)}
.scenarios-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scenario-card{text-align:center;padding:32px 20px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition)}
.scenario-card:hover{transform:translateY(-4px)}
.scenario-icon{font-size:48px;margin-bottom:16px}
.scenario-card h3{font-size:18px;margin-bottom:8px}
.scenario-card p{color:var(--text-light);font-size:14px}
.comparison{overflow-x:auto}
.comparison table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.comparison th,.comparison td{padding:16px;text-align:center;border-bottom:1px solid var(--border)}
.comparison th{background:var(--primary);color:#fff;font-weight:600}
.comparison tr:hover{background:var(--bg-light)}
.comparison .highlight{background:rgba(0,102,255,0.05);font-weight:600}
.news-tabs{display:flex;gap:16px;justify-content:center;margin-bottom:32px}
.news-tab{padding:12px 24px;background:var(--bg-gray);border-radius:var(--radius);cursor:pointer;transition:var(--transition);border:none;font-size:16px}
.news-tab.active{background:var(--primary);color:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-card-img{height:200px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-size:48px;color:#fff}
.news-card-content{padding:24px}
.news-card-meta{display:flex;gap:16px;font-size:14px;color:var(--text-muted);margin-bottom:12px}
.news-card h3{font-size:18px;margin-bottom:8px;line-height:1.4}
.news-card p{color:var(--text-light);font-size:14px;line-height:1.6}
.reviews{background:var(--bg-light)}
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.review-card{background:#fff;padding:32px;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.review-stars{color:#FFD700;font-size:20px;margin-bottom:16px}
.review-text{color:var(--text-light);line-height:1.8;margin-bottom:20px;font-style:italic}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.review-info h4{font-size:16px;margin-bottom:4px}
.review-info p{font-size:14px;color:var(--text-muted)}
.download{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;text-align:center}
.download h2{font-size:36px;margin-bottom:16px}
.download p{font-size:18px;margin-bottom:40px;opacity:0.95}
.download-platforms{display:flex;justify-content:center;gap:24px;flex-wrap:wrap}
.platform-btn{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 32px;background:rgba(255,255,255,0.1);border-radius:var(--radius-lg);transition:var(--transition);color:#fff;min-width:140px}
.platform-btn:hover{background:rgba(255,255,255,0.2);transform:translateY(-4px)}
.platform-icon{font-size:48px}
.platform-name{font-size:16px;font-weight:600}
.faq{background:var(--bg-light)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:16px;box-shadow:var(--shadow);overflow:hidden}
.faq-question{padding:20px 24px;font-weight:600;font-size:18px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-question:hover{background:var(--bg-light)}
.faq-answer{padding:0 24px 20px;color:var(--text-light);line-height:1.8}
.faq-answer ol{padding-left:20px}
.faq-answer li{margin-bottom:12px}
.cta{background:var(--primary);color:#fff;text-align:center;padding:60px 0}
.cta h2{font-size:32px;margin-bottom:16px}
.cta p{font-size:18px;margin-bottom:32px;opacity:0.95}
footer{background:#1a1a2e;color:rgba(255,255,255,0.8);padding:60px 0 30px}
.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-section h3{color:#fff;font-size:18px;margin-bottom:20px}
.footer-section ul{list-style:none}
.footer-section li{margin-bottom:12px}
.footer-section a{color:rgba(255,255,255,0.7);transition:var(--transition)}
.footer-section a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.6);font-size:14px}
.breadcrumb{background:var(--bg-gray);padding:16px 0;margin-bottom:32px}
.breadcrumb-list{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--text-muted)}
.breadcrumb-list a{color:var(--text-light)}
.breadcrumb-list span{color:var(--text-muted)}
.article-header{margin-bottom:40px}
.article-meta{display:flex;gap:24px;color:var(--text-muted);font-size:14px;margin-bottom:16px}
.article-content{max-width:800px;margin:0 auto;line-height:1.8}
.article-content h2{font-size:28px;margin:40px 0 20px;padding-bottom:12px;border-bottom:2px solid var(--primary)}
.article-content h3{font-size:22px;margin:32px 0 16px}
.article-content p{margin-bottom:20px;color:var(--text)}
.article-content img{margin:24px 0;border-radius:var(--radius)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
.article-content th{background:var(--primary);color:#fff;font-weight:600}
.article-content blockquote{border-left:4px solid var(--primary);padding:16px 24px;margin:24px 0;background:var(--bg-light);border-radius:0 var(--radius) var(--radius) 0;font-style:italic;color:var(--text-light)}
.article-toc{background:var(--bg-light);padding:24px;border-radius:var(--radius);margin-bottom:32px}
.article-toc h3{font-size:18px;margin-bottom:16px}
.article-toc ul{list-style:none;padding-left:0}
.article-toc li{margin-bottom:8px}
.article-toc a{color:var(--text-light);transition:var(--transition)}
.article-toc a:hover{color:var(--primary)}
.article-nav{display:flex;justify-content:space-between;margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}
.article-nav a{display:flex;align-items:center;gap:8px;color:var(--primary)}
.sidebar{background:var(--bg-light);padding:24px;border-radius:var(--radius);margin-bottom:24px}
.sidebar h3{font-size:18px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--primary)}
.sidebar ul{list-style:none}
.sidebar li{margin-bottom:12px}
.sidebar a{color:var(--text-light);transition:var(--transition)}
.sidebar a:hover{color:var(--primary)}
.comments{margin-top:48px}
.comment{background:#fff;padding:20px;border-radius:var(--radius);margin-bottom:16px;box-shadow:var(--shadow)}
.comment-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.comment-avatar{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
.comment-info h4{font-size:16px;margin-bottom:4px}
.comment-info p{font-size:12px;color:var(--text-muted)}
.comment-text{color:var(--text-light);line-height:1.6}
.related-articles{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}
.related-articles h3{font-size:24px;margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:768px){.hero-content{grid-template-columns:1fr}.features-grid,.scenarios-grid,.news-grid,.reviews-grid,.footer-content,.related-grid{grid-template-columns:1fr}.nav-links{display:none}.hero-text h1{font-size:32px}.section{padding:40px 0}.section-title{font-size:28px}}