*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#4F46E5;--primary-dark:#3730A3;--secondary:#7C3AED;--accent:#06B6D4;--dark:#1E1B4B;--light:#F8FAFC;--gray:#64748B;--gray-light:#E2E8F0;--success:#10B981;--warning:#F59E0B;--danger:#EF4444;--gradient:linear-gradient(135deg,#4F46E5,#7C3AED);--gradient-accent:linear-gradient(135deg,#06B6D4,#4F46E5);--shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);--radius:12px;--radius-lg:20px;--transition:all .3s ease}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;color:#334155;line-height:1.6;background:#fff;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:60px}
.section-title h2{font-size:2.5rem;font-weight:800;color:var(--dark);margin-bottom:16px}
.section-title p{font-size:1.1rem;color:var(--gray);max-width:600px;margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);border:none;gap:8px}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 15px rgba(79,70,229,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(79,70,229,.5)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-white{background:#fff;color:var(--primary);box-shadow:var(--shadow)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.badge{display:inline-block;padding:4px 12px;border-radius:50px;font-size:.75rem;font-weight:600}
.badge-primary{background:rgba(79,70,229,.1);color:var(--primary)}
.badge-success{background:rgba(16,185,129,.1);color:var(--success)}
.badge-warning{background:rgba(245,158,11,.1);color:var(--warning)}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:var(--transition)}
.nav.scrolled{background:rgba(30,27,75,.95);backdrop-filter:blur(20px);padding:10px 0;box-shadow:0 2px 20px rgba(0,0,0,.1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:0 20px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.4rem;font-weight:800;color:#fff}
.nav-logo img{width:36px;height:36px}
.nav-menu{display:flex;align-items:center;gap:32px}
.nav-item{position:relative}
.nav-link{color:rgba(255,255,255,.85);font-weight:500;font-size:.95rem;padding:8px 0;transition:var(--transition)}
.nav-link:hover{color:#fff}
.nav-link .arrow{display:inline-block;margin-left:4px;transition:transform .3s ease;font-size:.7rem}
.nav-item:hover .arrow{transform:rotate(180deg)}
.nav-dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-xl);padding:12px 0;min-width:200px;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;color:#334155;font-size:.9rem;white-space:nowrap}
.nav-dropdown a:hover{background:rgba(79,70,229,.05);color:var(--primary)}
.nav-cta .btn{padding:10px 24px;font-size:.9rem}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}
.hero{min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#1E1B4B 0%,#312E81 50%,#4338CA 100%);position:relative;overflow:hidden;padding-top:80px}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(124,58,237,.3) 0%,transparent 70%);border-radius:50%;animation:float 6s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(6,182,212,.2) 0%,transparent 70%);border-radius:50%;animation:float 8s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-30px)}}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content h1{font-size:3.2rem;font-weight:900;color:#fff;line-height:1.2;margin-bottom:20px}
.hero-content h1 span{background:linear-gradient(135deg,#06B6D4,#A78BFA);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content .subtitle{font-size:1.2rem;color:rgba(255,255,255,.8);margin-bottom:32px;line-height:1.8}
.hero-buttons{display:flex;gap:16px;margin-bottom:40px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px}
.hero-stat{text-align:center}
.hero-stat .number{font-size:2rem;font-weight:800;color:#fff}
.hero-stat .label{font-size:.85rem;color:rgba(255,255,255,.6);margin-top:4px}
.hero-demo{position:relative}
.vpn-demo{background:rgba(255,255,255,.05);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:30px;position:relative}
.vpn-demo-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.vpn-demo-title{color:#fff;font-size:1.1rem;font-weight:600}
.vpn-demo-status{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--success)}
.vpn-demo-status .dot{width:8px;height:8px;background:var(--success);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.vpn-connect-btn{width:140px;height:140px;border-radius:50%;background:var(--gradient);border:none;cursor:pointer;margin:20px auto;display:flex;align-items:center;justify-content:center;position:relative;transition:var(--transition);box-shadow:0 0 40px rgba(79,70,229,.4)}
.vpn-connect-btn:hover{transform:scale(1.05);box-shadow:0 0 60px rgba(79,70,229,.6)}
.vpn-connect-btn.connected{background:linear-gradient(135deg,#10B981,#06B6D4);box-shadow:0 0 40px rgba(16,185,129,.4)}
.vpn-connect-btn svg{width:48px;height:48px;fill:#fff}
.vpn-connect-btn::before{content:'';position:absolute;inset:-4px;border-radius:50%;border:2px solid rgba(255,255,255,.2);animation:ripple 2s infinite}
@keyframes ripple{0%{transform:scale(1);opacity:1}100%{transform:scale(1.3);opacity:0}}
.vpn-info{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.vpn-info-item{background:rgba(255,255,255,.05);border-radius:var(--radius);padding:16px;text-align:center}
.vpn-info-item .value{font-size:1.4rem;font-weight:700;color:#fff}
.vpn-info-item .label{font-size:.8rem;color:rgba(255,255,255,.6);margin-top:4px}
.vpn-nodes{margin-top:20px}
.vpn-nodes-title{color:rgba(255,255,255,.7);font-size:.85rem;margin-bottom:12px}
.vpn-node-list{display:flex;flex-direction:column;gap:8px}
.vpn-node{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:rgba(255,255,255,.05);border-radius:8px;cursor:pointer;transition:var(--transition)}
.vpn-node:hover,.vpn-node.active{background:rgba(79,70,229,.2);border:1px solid rgba(79,70,229,.3)}
.vpn-node-info{display:flex;align-items:center;gap:10px}
.vpn-node-flag{font-size:1.2rem}
.vpn-node-name{color:#fff;font-size:.9rem;font-weight:500}
.vpn-node-ping{font-size:.8rem;color:var(--success)}
.features{background:var(--light)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border-radius:var(--radius-lg);padding:32px;transition:var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:rgba(79,70,229,.1)}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient);transform:scaleX(0);transition:transform .3s ease}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:56px;height:56px;border-radius:14px;background:rgba(79,70,229,.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:1.5rem}
.feature-card h3{font-size:1.2rem;font-weight:700;color:var(--dark);margin-bottom:10px}
.feature-card p{color:var(--gray);font-size:.95rem;line-height:1.7}
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:280px;cursor:pointer}
.scenario-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scenario-card:hover img{transform:scale(1.1)}
.scenario-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(30,27,75,.9) 0%,transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px}
.scenario-overlay h3{color:#fff;font-size:1.2rem;font-weight:700;margin-bottom:8px}
.scenario-overlay p{color:rgba(255,255,255,.8);font-size:.9rem}
.pricing{background:var(--light)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center}
.pricing-card{background:#fff;border-radius:var(--radius-lg);padding:40px 32px;text-align:center;transition:var(--transition);border:2px solid transparent;position:relative}
.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}
.pricing-card.popular{border-color:var(--primary);transform:scale(1.05)}
.pricing-card.popular:hover{transform:scale(1.05) translateY(-4px)}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--gradient);color:#fff;padding:6px 20px;border-radius:50px;font-size:.8rem;font-weight:600}
.pricing-card h3{font-size:1.3rem;font-weight:700;color:var(--dark);margin-bottom:8px}
.pricing-price{margin:20px 0}
.pricing-price .amount{font-size:3rem;font-weight:900;color:var(--primary)}
.pricing-price .period{color:var(--gray);font-size:.9rem}
.pricing-features{text-align:left;margin:24px 0}
.pricing-features li{display:flex;align-items:center;gap:10px;padding:10px 0;color:#475569;font-size:.95rem}
.pricing-features li::before{content:'✓';color:var(--success);font-weight:700}
.pricing-features li.disabled{color:#CBD5E1}
.pricing-features li.disabled::before{content:'✕';color:#CBD5E1}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:12px;border:1px solid var(--gray-light);overflow:hidden;transition:var(--transition)}
.faq-item.active{border-color:var(--primary);box-shadow:0 4px 15px rgba(79,70,229,.1)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-weight:600;color:var(--dark);font-size:1.05rem}
.faq-question .icon{width:24px;height:24px;border-radius:50%;background:rgba(79,70,229,.1);display:flex;align-items:center;justify-content:center;transition:transform .3s ease;color:var(--primary);font-size:.8rem}
.faq-item.active .faq-question .icon{transform:rotate(180deg);background:var(--primary);color:#fff}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s ease}
.faq-item.active .faq-answer{max-height:500px;padding:0 24px 20px}
.faq-answer p{color:var(--gray);line-height:1.8;font-size:.95rem}
.faq-answer ol{padding-left:20px;margin-top:10px}
.faq-answer ol li{color:var(--gray);line-height:1.8;font-size:.95rem;margin-bottom:6px;list-style:decimal}
.reviews{background:var(--light)}
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border-radius:var(--radius-lg);padding:32px;transition:var(--transition)}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.review-stars{color:var(--warning);margin-bottom:16px;font-size:1.1rem}
.review-text{color:#475569;font-size:.95rem;line-height:1.8;margin-bottom:20px}
.review-author{display:flex;align-items:center;gap:12px}
.review-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:1.1rem}
.review-name{font-weight:600;color:var(--dark)}
.review-role{font-size:.85rem;color:var(--gray)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);border:1px solid var(--gray-light)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}
.news-card-img{height:200px;overflow:hidden}
.news-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-card-img img{transform:scale(1.1)}
.news-card-body{padding:24px}
.news-card-date{font-size:.85rem;color:var(--gray);margin-bottom:8px}
.news-card-title{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:10px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-title:hover{color:var(--primary)}
.news-card-desc{color:var(--gray);font-size:.9rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cta-section{background:var(--gradient);padding:80px 0;text-align:center}
.cta-section h2{font-size:2.5rem;font-weight:800;color:#fff;margin-bottom:16px}
.cta-section p{color:rgba(255,255,255,.8);font-size:1.1rem;margin-bottom:32px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.footer{background:var(--dark);padding:60px 0 30px;color:rgba(255,255,255,.7)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{margin-top:16px;font-size:.9rem;line-height:1.8}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:20px}
.footer-col a{display:block;padding:6px 0;font-size:.9rem;transition:var(--transition)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;align-items:center;justify-content:space-between;font-size:.85rem}
.download-hero{background:linear-gradient(135deg,#1E1B4B,#312E81);padding:120px 0 80px}
.download-hero .hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.download-info h1{font-size:2.8rem;font-weight:900;color:#fff;margin-bottom:16px}
.download-info .subtitle{color:rgba(255,255,255,.8);font-size:1.1rem;margin-bottom:24px}
.download-meta{display:flex;gap:24px;margin-top:24px}
.download-meta-item{background:rgba(255,255,255,.05);border-radius:var(--radius);padding:16px;text-align:center;flex:1}
.download-meta-item .value{font-size:1.3rem;font-weight:700;color:#fff}
.download-meta-item .label{font-size:.8rem;color:rgba(255,255,255,.6);margin-top:4px}
.versions{padding:80px 0}
.version-card{background:#fff;border-radius:var(--radius-lg);padding:32px;margin-bottom:24px;border:1px solid var(--gray-light);display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;transition:var(--transition)}
.version-card:hover{border-color:var(--primary);box-shadow:var(--shadow-lg)}
.version-badge{background:var(--gradient);color:#fff;padding:8px 16px;border-radius:8px;font-weight:700;font-size:.9rem}
.version-info h3{font-size:1.2rem;font-weight:700;color:var(--dark);margin-bottom:8px}
.version-features{display:flex;flex-wrap:wrap;gap:8px}
.version-features span{background:rgba(79,70,229,.08);color:var(--primary);padding:4px 12px;border-radius:50px;font-size:.8rem}
.system-req{background:var(--light);padding:80px 0}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.req-item{background:#fff;border-radius:var(--radius);padding:24px;display:flex;align-items:center;gap:16px}
.req-icon{width:48px;height:48px;border-radius:12px;background:rgba(79,70,229,.1);display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.req-item h4{font-size:.95rem;font-weight:600;color:var(--dark)}
.req-item p{font-size:.85rem;color:var(--gray)}
.install-steps{padding:80px 0}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{text-align:center;padding:32px 20px;position:relative}
.step-number{width:56px;height:56px;border-radius:50%;background:var(--gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;margin:0 auto 20px}
.step-card h3{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:10px}
.step-card p{color:var(--gray);font-size:.9rem}
.news-list-page{padding:120px 0 80px}
.news-list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-list-card{display:flex;background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--gray-light);transition:var(--transition)}
.news-list-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary)}
.news-list-card-img{width:240px;min-height:180px;overflow:hidden;flex-shrink:0}
.news-list-card-img img{width:100%;height:100%;object-fit:cover}
.news-list-card-body{padding:24px;display:flex;flex-direction:column;justify-content:center}
.news-list-card-body .date{font-size:.85rem;color:var(--gray);margin-bottom:8px}
.news-list-card-body h3{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:8px;line-height:1.5}
.news-list-card-body h3:hover{color:var(--primary)}
.news-list-card-body p{color:var(--gray);font-size:.9rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-detail{padding:120px 0 80px}
.news-detail-inner{display:grid;grid-template-columns:1fr 320px;gap:40px}
.news-content{background:#fff;border-radius:var(--radius-lg);padding:40px;border:1px solid var(--gray-light)}
.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:24px;font-size:.9rem;color:var(--gray)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--gray-light)}
.news-content h1{font-size:2rem;font-weight:800;color:var(--dark);margin-bottom:16px;line-height:1.4}
.news-meta{display:flex;align-items:center;gap:16px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--gray-light);font-size:.9rem;color:var(--gray)}
.news-body h2{font-size:1.4rem;font-weight:700;color:var(--dark);margin:32px 0 16px;padding-left:12px;border-left:3px solid var(--primary)}
.news-body p{margin-bottom:16px;line-height:1.9;color:#475569}
.news-body img{border-radius:var(--radius);margin:20px 0}
.news-sidebar{position:sticky;top:100px;align-self:start}
.sidebar-card{background:#fff;border-radius:var(--radius);padding:24px;margin-bottom:20px;border:1px solid var(--gray-light)}
.sidebar-card-title{font-size:1rem;font-weight:700;color:var(--dark);margin-bottom:16px;padding-left:12px;border-left:3px solid var(--primary)}
.toc-list{position:relative;padding-left:20px}
.toc-list::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:2px;background:var(--gray-light)}
.toc-item{position:relative;padding:8px 0 8px 16px;font-size:.9rem;color:var(--gray);cursor:pointer;transition:var(--transition)}
.toc-item::before{content:'';position:absolute;left:-17px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:var(--gray-light);border:2px solid #fff;transition:var(--transition)}
.toc-item.active{color:var(--primary);font-weight:600}
.toc-item.active::before{background:var(--primary)}
.toc-item:hover{color:var(--primary)}
.hot-news-list{display:flex;flex-direction:column;gap:12px}
.hot-news-item{display:flex;align-items:center;gap:12px;padding:8px 0;transition:var(--transition)}
.hot-news-item:hover .hot-news-title{color:var(--primary)}
.hot-news-rank{width:24px;height:24px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;color:#fff;flex-shrink:0}
.hot-news-rank.r1{background:linear-gradient(135deg,#EF4444,#F97316)}
.hot-news-rank.r2{background:linear-gradient(135deg,#F97316,#F59E0B)}
.hot-news-rank.r3{background:linear-gradient(135deg,#F59E0B,#FBBF24)}
.hot-news-rank.r4,.hot-news-rank.r5{background:var(--gray-light);color:var(--gray)}
.hot-news-title{font-size:.85rem;color:#475569;line-height:1.4;transition:var(--transition)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{padding:6px 14px;border-radius:50px;font-size:.8rem;background:rgba(79,70,229,.08);color:var(--primary);cursor:pointer;transition:var(--transition)}
.tag-item:hover{background:var(--primary);color:#fff}
.news-nav{display:flex;justify-content:space-between;margin-top:32px;padding-top:24px;border-top:1px solid var(--gray-light)}
.news-nav a{display:flex;align-items:center;gap:8px;color:var(--gray);font-size:.9rem;transition:var(--transition)}
.news-nav a:hover{color:var(--primary)}
.related-news{margin-top:40px;padding-top:32px;border-top:1px solid var(--gray-light)}
.related-news h3{font-size:1.2rem;font-weight:700;color:var(--dark);margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--gray-light);transition:var(--transition)}
.related-card:hover{box-shadow:var(--shadow)}
.related-card img{height:120px;width:100%;object-fit:cover}
.related-card-body{padding:12px}
.related-card-body h4{font-size:.85rem;font-weight:600;color:var(--dark);line-height:1.4}
.comments-section{margin-top:40px;padding-top:32px;border-top:1px solid var(--gray-light)}
.comments-section h3{font-size:1.2rem;font-weight:700;color:var(--dark);margin-bottom:20px}
.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--gray-light)}
.comment-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;flex-shrink:0}
.comment-body{flex:1}
.comment-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.comment-name{font-weight:600;color:var(--dark);font-size:.9rem}
.comment-date{font-size:.8rem;color:var(--gray)}
.comment-text{color:#475569;font-size:.9rem;line-height:1.7}
.sitemap-page{padding:120px 0 80px}
.sitemap-section{margin-bottom:40px}
.sitemap-section h2{font-size:1.5rem;font-weight:700;color:var(--dark);margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--primary)}
.sitemap-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.sitemap-links a{display:block;padding:12px 16px;background:var(--light);border-radius:8px;font-size:.9rem;color:#475569;transition:var(--transition)}
.sitemap-links a:hover{background:var(--primary);color:#fff}
.page-404{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--light);text-align:center}
.page-404 h1{font-size:8rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-404 p{font-size:1.2rem;color:var(--gray);margin:16px 0 32px}
.page-404 .countdown{font-size:1rem;color:var(--gray)}
.nodes-section{padding:80px 0;background:var(--dark)}
.nodes-section .section-title h2{color:#fff}
.nodes-section .section-title p{color:rgba(255,255,255,.6)}
.nodes-map{position:relative;max-width:900px;margin:0 auto;height:400px;background:rgba(255,255,255,.03);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);overflow:hidden;display:flex;align-items:center;justify-content:center}
.nodes-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.nodes-stat{background:rgba(255,255,255,.05);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid rgba(255,255,255,.1)}
.nodes-stat .number{font-size:2rem;font-weight:800;color:#fff}
.nodes-stat .label{font-size:.85rem;color:rgba(255,255,255,.6);margin-top:4px}
.protocol-section{padding:80px 0}
.protocol-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.protocol-card{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;border:1px solid var(--gray-light);transition:var(--transition)}
.protocol-card:hover{border-color:var(--primary);box-shadow:var(--shadow-lg)}
.protocol-card .icon{font-size:2rem;margin-bottom:12px}
.protocol-card h4{font-size:1rem;font-weight:700;color:var(--dark);margin-bottom:6px}
.protocol-card p{font-size:.85rem;color:var(--gray)}
.speed-section{background:var(--light);padding:80px 0}
.speed-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.speed-card{background:#fff;border-radius:var(--radius-lg);padding:32px;text-align:center}
.speed-value{font-size:3rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.speed-label{font-size:1rem;color:var(--gray);margin-top:8px}
.steps-section{padding:80px 0}
.steps-demo{display:flex;align-items:center;justify-content:center;gap:40px;margin-top:40px}
.step-demo-item{text-align:center;flex:1}
.step-demo-icon{width:80px;height:80px;border-radius:50%;background:rgba(79,70,229,.1);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:2rem}
.step-demo-item h4{font-size:1rem;font-weight:600;color:var(--dark);margin-bottom:6px}
.step-demo-item p{font-size:.85rem;color:var(--gray)}
.step-arrow{font-size:1.5rem;color:var(--primary)}
.anim-fade-up{opacity:0;transform:translateY(30px);transition:all .6s ease}
.anim-fade-up.visible{opacity:1;transform:translateY(0)}
@media(max-width:992px){.nav-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(30,27,75,.98);flex-direction:column;justify-content:center;align-items:center;gap:24px;z-index:999}.nav-menu.active{display:flex}.nav-toggle{display:flex}.nav-dropdown{position:static;transform:none;background:rgba(255,255,255,.05);border-radius:8px;opacity:1;visibility:visible;min-width:160px;display:none}.nav-item.open .nav-dropdown{display:block}.nav-dropdown a{color:rgba(255,255,255,.8)}.hero-inner,.download-hero .hero-inner{grid-template-columns:1fr;text-align:center}.hero-stats{justify-content:center}.hero-buttons{justify-content:center}.hero-demo{max-width:400px;margin:0 auto}.features-grid,.scenarios-grid,.reviews-grid,.news-grid,.pricing-grid{grid-template-columns:repeat(2,1fr)}.pricing-card.popular{transform:none}.pricing-card.popular:hover{transform:translateY(-4px)}.footer-grid{grid-template-columns:1fr 1fr}.news-detail-inner{grid-template-columns:1fr}.news-sidebar{position:static}.news-list-grid{grid-template-columns:1fr}.nodes-stats{grid-template-columns:repeat(2,1fr)}.protocol-grid{grid-template-columns:repeat(2,1fr)}.speed-grid{grid-template-columns:repeat(2,1fr)}.steps-grid{grid-template-columns:repeat(2,1fr)}.req-grid{grid-template-columns:repeat(2,1fr)}.related-grid{grid-template-columns:repeat(2,1fr)}.sitemap-links{grid-template-columns:repeat(2,1fr)}.steps-demo{flex-wrap:wrap}.step-arrow{display:none}}
@media(max-width:768px){.section{padding:60px 0}.section-title h2{font-size:2rem}.hero-content h1{font-size:2.2rem}.features-grid,.scenarios-grid,.reviews-grid,.news-grid,.pricing-grid,.speed-grid,.protocol-grid,.req-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:12px;text-align:center}.news-list-card{flex-direction:column}.news-list-card-img{width:100%;min-height:160px}.version-card{grid-template-columns:1fr;text-align:center}.download-meta{flex-direction:column}.hero-stats{flex-wrap:wrap;gap:20px}.steps-grid{grid-template-columns:1fr}.nodes-stats{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr}.sitemap-links{grid-template-columns:1fr}}
@media(max-width:480px){.hero-content h1{font-size:1.8rem}.section-title h2{font-size:1.6rem}.btn{padding:12px 24px;font-size:.9rem}.vpn-connect-btn{width:100px;height:100px}.vpn-info{grid-template-columns:1fr}.hero-stats .hero-stat .number{font-size:1.5rem}.download-info h1{font-size:2rem}.news-content{padding:24px}.news-content h1{font-size:1.5rem}}