:root{
  --blue:#2980FE;
  --blue-dark:#1768E8;
  --text:#202637;
  --muted:#667085;
  --light:#F6F8FC;
  --soft:#EEF4FF;
  --border:#E4E8F0;
  --card:#FFFFFF;
  --gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);
  --shadow:0 16px 48px rgba(30,41,59,.10);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.content-container{width:min(100% - 32px,1180px);margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#152033}.logo{width:42px;height:42px;border-radius:12px;object-fit:cover}.nav-toggle{display:none}.nav-toggle-label{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:999px;padding:8px 14px;font-weight:700;color:#344054;background:#fff}.site-nav{position:absolute;left:16px;right:16px;top:72px;display:none;flex-direction:column;gap:6px;padding:14px;background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}.nav-toggle:checked~.site-nav{display:flex}.site-nav a{padding:10px 12px;border-radius:12px;color:#3C465B;font-weight:650}.site-nav a:hover{background:var(--soft);color:var(--blue)}.nav-download{background:#EEF5FF;color:var(--blue)!important}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:999px;background:var(--blue);color:#fff!important;font-weight:800;box-shadow:0 10px 26px rgba(41,128,254,.28);transition:.2s ease}.download-btn:hover{background:var(--blue-dark);transform:translateY(-2px)}
.section{padding:64px 0}.section-light{background:var(--light)}.section-head{max-width:760px;margin:0 auto 28px;text-align:center}.section-eyebrow,.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#EAF2FF;color:var(--blue);font-size:13px;font-weight:800}.section h2,.section-head h2{font-size:28px;line-height:1.25;margin:14px 0 12px}.section p{color:var(--muted);margin:0 0 14px}.gradient-bg{background:var(--gradient);color:#fff}.vpn-network-hero{position:relative;overflow:hidden;background:var(--gradient);color:#fff}.vpn-network-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.24),transparent 24%),radial-gradient(circle at 80% 20%,rgba(255,255,255,.20),transparent 18%),linear-gradient(135deg,rgba(255,255,255,.16) 0 1px,transparent 1px 40px);opacity:.75}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:34px;align-items:center;padding:76px 0}.hero-copy h1{font-size:38px;line-height:1.14;margin:0 0 18px;letter-spacing:-.03em}.hero-copy p{font-size:17px;color:rgba(255,255,255,.86);max-width:620px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}.hero-tags span,.status-pill{display:inline-flex;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);font-size:13px;font-weight:750}.hero-visual{position:relative;min-height:360px;display:flex;align-items:center;justify-content:center}.hero-visual-card{width:min(420px,90%);padding:18px;border-radius:32px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);box-shadow:0 26px 70px rgba(0,0,0,.18);backdrop-filter:blur(10px)}.hero-visual-card img{border-radius:24px}.floating-status{position:absolute;display:none;color:#344054;background:#fff;border-radius:999px;padding:10px 14px;box-shadow:var(--shadow);font-weight:800;font-size:13px}.status-a{top:30px;left:0}.status-b{top:80px;right:0}.status-c{bottom:82px;left:18px}.status-d{bottom:24px;right:18px}.node-overview{display:grid;grid-template-columns:1fr;gap:16px;margin-top:-34px;position:relative;z-index:2}.node-card,.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:0 10px 30px rgba(16,24,40,.05)}.node-card .mini-label{display:inline-flex;padding:4px 9px;border-radius:999px;background:#EAF2FF;color:var(--blue);font-weight:800;font-size:12px}.node-card h3,.card h3{margin:12px 0 8px;font-size:20px}.text-link{color:var(--blue);font-weight:800}.split-section{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}.split-section .image-panel,.image-panel{background:linear-gradient(180deg,#F8FAFF,#EDF4FF);border:1px solid var(--border);border-radius:32px;padding:18px;box-shadow:var(--shadow)}.image-panel img{border-radius:24px;margin:auto}.feature-list{display:grid;gap:10px;margin:18px 0}.feature-list span,.check-list li{padding:10px 12px;border:1px solid var(--border);border-radius:14px;background:#fff;color:#48556A}.global-nodes-section{background:#F6F8FC}.map-panel{position:relative;overflow:hidden;border-radius:32px;padding:24px;background:linear-gradient(135deg,#FFFFFF,#EDF4FF);border:1px solid var(--border);box-shadow:var(--shadow)}.map-panel:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 18% 28%,rgba(41,128,254,.18) 0 8px,transparent 9px),radial-gradient(circle at 78% 35%,rgba(123,78,241,.18) 0 8px,transparent 9px),radial-gradient(circle at 54% 72%,rgba(184,77,218,.16) 0 8px,transparent 9px);opacity:.8}.map-panel>*{position:relative}.speed-lines{display:grid;gap:12px;margin-top:18px}.speed-line{background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px}.speed-line strong{display:flex;justify-content:space-between}.bar{height:8px;border-radius:999px;background:#E7EEFF;margin-top:10px;overflow:hidden}.bar i{display:block;height:100%;border-radius:999px;background:var(--blue)}.privacy-protection-section .safety-panel{background:#fff;border:1px solid var(--border);border-radius:32px;padding:24px;box-shadow:var(--shadow)}.safety-tags{display:flex;flex-wrap:wrap;gap:10px}.safety-tags span{background:#F0F6FF;color:#2D5FDB;border:1px solid #D9E7FF;border-radius:999px;padding:8px 12px;font-weight:750}.no-log-policy-section .policy-grid,.policy-grid{display:grid;grid-template-columns:1fr;gap:16px}.multi-device-section .device-grid{display:grid;grid-template-columns:1fr;gap:14px}.device-card{border:1px solid var(--border);border-radius:22px;padding:18px;background:#fff}.tech-panel{display:grid;grid-template-columns:1fr;gap:16px}.protocol-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px}.process-steps{display:grid;grid-template-columns:1fr;gap:14px;counter-reset:step}.step-card{position:relative;background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px 20px 20px 64px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}.risk-grid{display:grid;grid-template-columns:1fr;gap:16px}.risk-card{background:#fff;border:1px solid var(--border);border-left:4px solid var(--blue);border-radius:20px;padding:18px}.risk-card h3{margin:0 0 8px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px}.faq-item h3{margin:0 0 8px}.cta-section{padding:60px 0;background:var(--gradient);color:#fff;text-align:center}.cta-box{max-width:760px;margin:auto}.cta-box p{color:rgba(255,255,255,.86)}.page-hero{padding:56px 0;background:linear-gradient(180deg,#F7F9FF,#FFFFFF);border-bottom:1px solid var(--border)}.page-hero h1{font-size:34px;line-height:1.2;margin:14px 0 12px}.page-hero p{max-width:820px;color:var(--muted)}.page-layout{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}.article-card{background:#fff;border:1px solid var(--border);border-radius:28px;padding:24px;box-shadow:0 12px 36px rgba(16,24,40,.05)}.article-card h2{margin-top:0}.side-panel{background:#F7FAFF;border:1px solid var(--border);border-radius:24px;padding:20px;position:sticky;top:96px}.info-grid{display:grid;grid-template-columns:1fr;gap:14px}.info-box{background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px}.check-list{padding:0;list-style:none;display:grid;gap:10px}.download-page .download-focus{text-align:center;max-width:780px;margin:0 auto 30px}.download-page .download-focus .download-btn{margin-top:12px}.site-footer{background:#101828;color:#D0D5DD;padding:48px 0 22px}.footer-grid{display:grid;grid-template-columns:1fr;gap:24px}.footer-brand{font-size:22px;font-weight:900;color:#fff;margin-bottom:10px}.site-footer h3{color:#fff;margin:0 0 10px}.site-footer a{display:block;color:#D0D5DD;margin:6px 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;color:#98A2B3;font-size:14px}.legal-note{padding:14px 16px;border-radius:18px;background:#F8FAFC;border:1px solid var(--border);color:#5F6B7A}.only-one-action{margin-top:22px}.image-row{display:grid;grid-template-columns:1fr;gap:16px}.image-row .image-panel{box-shadow:none}.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.pill-row span{background:#fff;border:1px solid var(--border);border-radius:999px;padding:8px 12px;font-weight:750;color:#48556A}
@media (min-width:680px){.node-overview{grid-template-columns:repeat(2,1fr)}.policy-grid,.risk-grid,.info-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.image-row{grid-template-columns:repeat(2,1fr)}}
@media (min-width:980px){.nav-toggle-label{display:none}.site-nav{position:static;display:flex!important;flex-direction:row;align-items:center;gap:2px;padding:0;background:transparent;border:0;box-shadow:none}.site-nav a{font-size:14px}.hero-grid{grid-template-columns:1.05fr .95fr;min-height:650px;padding:88px 0}.hero-copy h1{font-size:60px}.floating-status{display:inline-flex}.node-overview{grid-template-columns:repeat(4,1fr)}.split-section{grid-template-columns:1fr 1fr;gap:52px}.split-section.reverse .image-panel{order:-1}.section{padding:86px 0}.section h2,.section-head h2{font-size:40px}.policy-grid{grid-template-columns:repeat(3,1fr)}.multi-device-section .device-grid{grid-template-columns:repeat(3,1fr)}.tech-panel{grid-template-columns:1fr 1fr 1fr}.risk-grid{grid-template-columns:repeat(3,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 320px}.article-card{padding:34px}.footer-grid{grid-template-columns:1.8fr 1fr 1fr}.page-hero h1{font-size:46px}}
@media (max-width:420px){.content-container{width:min(100% - 24px,1180px)}.hero-copy h1{font-size:32px}.page-hero h1{font-size:30px}.download-btn{width:100%}.section{padding:52px 0}.hero-grid{padding:58px 0}.site-nav{left:12px;right:12px}}