*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#1f2937;background:#f6f8fc;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}p{margin:0 0 16px;color:#5d6678}h1,h2,h3{margin:0 0 16px;color:#182033;line-height:1.22}h1{font-size:clamp(34px,8vw,64px);letter-spacing:-.04em}h2{font-size:clamp(26px,5vw,42px);letter-spacing:-.03em}h3{font-size:20px}.container{width:min(1120px,calc(100% - 36px));margin:0 auto}.narrow{width:min(860px,calc(100% - 36px));margin:0 auto}.center{text-align:center}.gradient-bg{background:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%)}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);border-bottom:1px solid #e7eaf2;backdrop-filter:blur(16px)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:18px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:#1b2748}.brand img{width:42px;height:42px;border-radius:12px;object-fit:cover}.nav-toggle{border:1px solid #dfe4ef;background:#fff;border-radius:999px;padding:9px 14px;color:#27344f;font-weight:700}.site-nav{position:absolute;top:72px;left:18px;right:18px;display:none;flex-direction:column;background:#fff;border:1px solid #e7eaf2;border-radius:22px;padding:12px;box-shadow:0 18px 50px rgba(30,42,74,.14)}.site-nav.is-open{display:flex}.site-nav a{padding:12px 14px;border-radius:14px;color:#526079;font-weight:700}.site-nav a.active,.site-nav a:hover{background:#eef4ff;color:#2980FE}.vpn-network-hero{position:relative;overflow:hidden;color:#fff;padding:64px 0 56px}.vpn-network-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.22),transparent 28%),radial-gradient(circle at 78% 18%,rgba(255,255,255,.15),transparent 24%),linear-gradient(120deg,transparent 0 45%,rgba(255,255,255,.13) 45% 46%,transparent 46% 100%);opacity:.9}.hero-grid{position:relative;display:grid;gap:36px;align-items:center}.hero-copy p,.hero-copy h1,.hero-copy h2,.hero-copy h3,.dark-on-gradient p,.dark-on-gradient h2,.protocol-panel p,.protocol-panel h2,.cta-section p,.cta-section h2,.download-hero p,.download-hero h1{color:#fff}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#eaf1ff}.eyebrow.blue{color:#2980FE}.eyebrow.light{color:#fff}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;background:#2980FE;color:#fff!important;border-radius:999px;font-weight:800;box-shadow:0 12px 24px rgba(41,128,254,.26);transition:.2s ease}.download-btn:hover{background:#1768E8;transform:translateY(-1px)}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero-tags span,.privacy-tags span{border:1px solid rgba(255,255,255,.38);background:rgba(255,255,255,.16);color:#fff;border-radius:999px;padding:8px 12px;font-size:13px}.network-map-card{position:relative;min-height:330px;border:1px solid rgba(255,255,255,.28);border-radius:32px;background:rgba(255,255,255,.14);box-shadow:0 24px 80px rgba(29,30,85,.28);padding:24px;backdrop-filter:blur(14px)}.network-map-card:before{content:"";position:absolute;inset:20px;border-radius:24px;background:linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(180deg,rgba(255,255,255,.12) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(circle,#000 45%,transparent 80%)}.network-map-card img{position:relative;margin:auto;max-height:360px;object-fit:contain}.float-badge{position:absolute;background:#fff;color:#24314f;border-radius:999px;padding:10px 13px;font-size:13px;font-weight:800;box-shadow:0 12px 30px rgba(28,38,70,.18)}.badge-one{top:28px;left:22px}.badge-two{top:70px;right:20px}.badge-three{bottom:52px;left:30px}.badge-four{bottom:24px;right:28px}.section{padding:70px 0}.section-head{margin-bottom:30px}.section-head.center{text-align:center;margin-inline:auto;max-width:760px}.node-overview{display:grid;grid-template-columns:1fr;gap:16px}.node-card,.info-cards article,.risk-grid article,.process-steps article,.article-card,.side-panel,.safety-panel,.soft-panel,.privacy-panel,.speed-panel,.faq-summary,.note-box{background:#fff;border:1px solid #e5eaf3;border-radius:24px;box-shadow:0 16px 38px rgba(25,37,66,.06)}.node-card{padding:24px}.card-label{display:inline-flex;background:#eef5ff;color:#2980FE;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800;margin-bottom:12px}.node-card a,.info-cards a,.text-link,.risk-grid a,.process-steps a,.side-panel a{color:#2980FE;font-weight:800}.split-grid{display:grid;gap:26px;align-items:center}.split-image{padding:22px}.split-image img{margin:auto;max-height:360px;object-fit:contain}.feature-list,.device-list,.check-list{padding-left:18px;margin:0 0 20px;color:#4b566d}.feature-list li,.device-list li,.check-list li{margin-bottom:8px}.map-section{position:relative;overflow:hidden;background:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%)}.map-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 25% 28%,rgba(255,255,255,.18),transparent 24%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.14),transparent 24%)}.map-section .container{position:relative}.mini-grid{display:grid;gap:12px;margin:22px 0}.mini-grid div{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);border-radius:18px;padding:14px;color:#fff}.mini-grid span{display:block;font-size:13px;color:#edf3ff}.glass-panel{background:rgba(255,255,255,.17);border-color:rgba(255,255,255,.28);box-shadow:0 20px 60px rgba(20,25,70,.24)}.light-link{color:#fff!important}.tinted-section{background:#edf4ff}.speed-panel{padding:22px;display:grid;gap:12px}.speed-line{display:flex;align-items:center;justify-content:space-between;background:#f7faff;border:1px solid #dce8fb;border-radius:16px;padding:12px 14px}.speed-line span{color:#64748b}.speed-line b{color:#2980FE}.speed-panel img{margin:10px auto 0;max-height:260px}.privacy-panel{padding:26px;display:grid;gap:24px;align-items:center}.privacy-tags{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.privacy-tags span{background:#eef5ff;color:#2980FE;border-color:#dbeafe}.privacy-image-card{background:#f8fbff;border-radius:24px;padding:18px}.info-cards{display:grid;gap:16px}.info-cards article{padding:22px}.protocol-bg{background:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%)}.protocol-panel{display:grid;gap:22px;align-items:center;color:#fff}.protocol-panel img{max-height:320px;margin:auto}.process-steps{display:grid;gap:16px}.process-steps article{padding:22px}.process-steps b{display:inline-flex;width:42px;height:42px;border-radius:14px;background:#eef5ff;color:#2980FE;align-items:center;justify-content:center;margin-bottom:12px}.risk-grid{display:grid;gap:16px}.risk-grid article{padding:20px;border-left:4px solid #2980FE}.risk-grid strong{display:block;color:#27344f;margin-bottom:10px}.faq-list{display:grid;gap:14px}.faq-list details{background:#fff;border:1px solid #e5eaf3;border-radius:18px;padding:16px 18px}.faq-list summary{cursor:pointer;font-weight:800;color:#1f2937}.faq-list p{margin-top:10px}.faq-summary{padding:26px}.cta-section{text-align:center;color:#fff}.cta-inner{max-width:760px}.site-footer{background:#172033;color:#d7deec;padding:56px 0 22px}.footer-grid{display:grid;gap:28px}.footer-brand{font-size:24px;font-weight:900;color:#fff;margin-bottom:12px}.site-footer p{color:#b9c3d7}.site-footer h3{color:#fff;font-size:16px}.site-footer a{display:block;color:#cbd5e1;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;gap:12px;flex-direction:column;color:#9fb0ca}.page-hero{padding:58px 0}.simple-hero{background:linear-gradient(180deg,#f5f8ff 0%,#fff 100%);border-bottom:1px solid #e8edf7}.simple-hero h1{font-size:clamp(32px,6vw,52px)}.page-badge{display:inline-flex;margin-bottom:14px;border-radius:999px;padding:8px 13px;background:#eef5ff;color:#2980FE;font-weight:900;font-size:13px}.page-badge.light{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.3)}.content-layout{display:grid;gap:24px;align-items:start}.article-card{padding:24px}.article-card h2{font-size:26px;margin-top:14px}.article-card .download-btn{margin-top:10px}.side-panel{padding:22px;position:sticky;top:94px}.side-panel a{display:block;padding:11px 0;border-bottom:1px solid #edf1f7}.side-card-list{display:grid;gap:12px;margin-top:18px}.side-card-list article{background:#f8fbff;border:1px solid #e3ecfb;border-radius:18px;padding:14px}.side-card-list h3{font-size:16px;margin-bottom:6px}.side-card-list p{font-size:14px;margin:0}.extension-image{background:#f8fbff;border:1px solid #e7eef8;border-radius:22px;padding:18px;margin-bottom:22px}.extension-image img{max-height:280px;margin:auto;object-fit:contain}.note-box{padding:18px;background:#f7fbff;margin:18px 0}.two-column-guide{display:grid;gap:22px}.number-list{padding-left:20px}.number-list li{margin-bottom:14px;color:#4b566d}.safety-panel{padding:24px}.download-hero{padding:70px 0}.faq-page-section .download-btn{margin-top:24px}.faq-cta{margin-top:20px}@media (min-width:700px){.node-overview{grid-template-columns:repeat(2,1fr)}.info-cards.three-cols{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.two-column-guide{grid-template-columns:1.2fr .8fr}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}@media (min-width:960px){.nav-toggle{display:none}.site-nav{position:static;display:flex;flex-direction:row;align-items:center;background:transparent;border:0;box-shadow:none;padding:0;gap:2px}.site-nav a{font-size:14px;padding:9px 10px}.vpn-network-hero{padding:92px 0 82px}.hero-grid,.split-grid{grid-template-columns:1.05fr .95fr}.split-grid.reverse{grid-template-columns:.95fr 1.05fr}.split-grid.reverse .split-copy{order:2}.split-grid.reverse .split-image,.split-grid.reverse .glass-panel{order:1}.node-overview{grid-template-columns:repeat(4,1fr)}.privacy-panel{grid-template-columns:1fr .75fr;padding:34px}.protocol-panel{grid-template-columns:1fr .8fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 310px}.article-card{padding:34px}.section{padding:88px 0}.simple-hero{padding:76px 0}.site-nav a.active,.site-nav a:hover{background:#eef4ff}.footer-bottom{flex-direction:row;justify-content:space-between}}@media (max-width:420px){.container,.narrow{width:min(100% - 28px,1120px)}.download-btn{width:100%}.float-badge{font-size:12px;padding:8px 10px}.network-map-card{padding:16px}.site-nav{left:14px;right:14px}.risk-grid article,.node-card,.article-card,.side-panel{border-radius:20px}.hero-tags span{flex:1;text-align:center;justify-content:center}.page-hero{padding:46px 0}.section{padding:54px 0}}