:root{
    --gradient: linear-gradient(90deg, #3558F2 0%, #7B4EF1 50%, #B84DDA 100%);
    --blue:#2980FE;
    --blue-dark:#1768E8;
    --text:#1f2937;
    --muted:#667085;
    --line:#e5e7eb;
    --soft:#f5f7fb;
    --soft-blue:#f0f5ff;
    --card:#ffffff;
    --shadow:0 18px 45px rgba(32,47,76,.08);
    --radius:26px;
}
*{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:1.72;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1120px, calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,231,235,.7)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#111827;letter-spacing:.04em}.brand-logo{width:38px;height:38px;border-radius:13px;object-fit:cover}.brand-text{font-size:20px}.site-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:12px}.site-nav.open{display:grid;gap:6px}.site-nav a{font-size:14px;color:#344054;padding:10px 12px;border-radius:12px}.site-nav a.active,.site-nav a:hover{color:var(--blue);background:var(--soft-blue)}.nav-toggle{border:1px solid var(--line);background:#fff;color:#344054;border-radius:999px;padding:8px 14px;font-weight:700}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 24px;background:var(--blue);color:#fff!important;border-radius:999px;font-weight:800;box-shadow:0 12px 28px rgba(41,128,254,.24);transition:.2s ease;border:0;white-space:nowrap}.download-btn:hover{background:var(--blue-dark);transform:translateY(-1px)}
.section{padding:64px 0}.section.soft{background:var(--soft)}.section-head{max-width:760px;margin-bottom:28px}.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;border-radius:999px;background:rgba(41,128,254,.1);color:var(--blue);font-size:13px;font-weight:800;padding:6px 12px;margin-bottom:14px}.section h1,.section h2,.page-hero h1{line-height:1.16;letter-spacing:-.04em;margin:0 0 16px}.section h1,.page-hero h1{font-size:clamp(34px,7vw,58px)}.section h2{font-size:clamp(28px,5vw,44px)}.section h3{font-size:21px;margin:0 0 8px}.lead{font-size:18px;color:#eef4ff;max-width:650px}.muted{color:var(--muted)}.link-arrow{display:inline-flex;color:var(--blue);font-weight:800;margin-top:12px}.link-arrow:after{content:"→";margin-left:6px}.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.tag{display:inline-flex;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.14);color:#fff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.tag.light{background:#fff;color:#344054;border-color:var(--line)}
.vpn-lab-hero{background:var(--gradient);color:#fff;padding:70px 0 58px;position:relative;overflow:hidden}.vpn-lab-hero:before{content:"";position:absolute;inset:auto -20% -35% -20%;height:280px;background:rgba(255,255,255,.14);filter:blur(70px)}.hero-grid{position:relative;display:grid;gap:34px;align-items:center}.hero-copy h1{font-size:clamp(36px,9vw,68px);margin:0 0 18px;line-height:1.06;letter-spacing:-.05em}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:26px 0}.hero-note{font-size:14px;color:rgba(255,255,255,.82)}.hero-visual{position:relative;min-height:320px;display:grid;place-items:center}.device-panel{position:relative;width:min(420px,100%);padding:18px;border-radius:34px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);box-shadow:0 30px 80px rgba(20,32,80,.25)}.device-panel img{border-radius:26px;background:#fff}.floating-card{position:absolute;background:rgba(255,255,255,.92);color:#22304a;border:1px solid rgba(255,255,255,.65);border-radius:18px;padding:10px 13px;font-size:13px;font-weight:800;box-shadow:0 14px 30px rgba(17,24,39,.14)}.floating-card.one{left:-8px;top:28px}.floating-card.two{right:-4px;top:86px}.floating-card.three{left:18px;bottom:42px}.floating-card.four{right:16px;bottom:10px}
.privacy-summary{display:grid;gap:16px;margin-top:-34px;position:relative;z-index:4}.summary-card,.security-card,.risk-card,.faq-item,.info-card,.step-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.summary-card{padding:22px}.summary-card .mini-label{display:inline-flex;color:var(--blue);background:var(--soft-blue);padding:4px 10px;border-radius:999px;font-size:12px;font-weight:800;margin-bottom:10px}.summary-card p{color:var(--muted);margin:0}
.split{display:grid;gap:28px;align-items:center}.split.reverse .visual{order:-1}.visual-card{background:#fff;border:1px solid var(--line);border-radius:34px;padding:18px;box-shadow:var(--shadow)}.visual-card img{border-radius:24px;margin:auto}.points{display:grid;gap:12px;margin:20px 0}.point{display:flex;gap:10px;align-items:flex-start;color:#46536a}.point:before{content:"";width:9px;height:9px;margin-top:10px;flex:0 0 9px;border-radius:50%;background:var(--blue)}
.privacy-protection-section{background:linear-gradient(180deg,#fff 0%,#f8fbff 100%)}.privacy-panel{display:grid;gap:14px}.security-card{padding:22px}.security-card strong{display:block;margin-bottom:6px}.security-card p{margin:0;color:var(--muted)}.no-log-policy-section .policy-grid,.protocol-grid,.device-grid,.risk-grid,.faq-grid{display:grid;gap:16px}.policy-grid .security-card{border-top:4px solid var(--blue)}.global-nodes-section .node-box{background:#fff;border:1px solid var(--line);border-radius:34px;padding:22px;box-shadow:var(--shadow)}.node-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.node-metric{background:var(--soft);border-radius:18px;padding:16px}.node-metric b{display:block;color:#101828;font-size:22px}.high-speed-section{background:#f4f7fb}.speed-panel{background:#fff;border-radius:34px;padding:24px;border:1px solid var(--line);box-shadow:var(--shadow)}.device-pill-list{display:flex;gap:10px;flex-wrap:wrap}.device-pill{background:var(--soft-blue);color:#1f4fb7;border-radius:999px;padding:8px 12px;font-weight:800;font-size:13px}.tech-panel{background:#101828;color:#fff;border-radius:34px;padding:24px;position:relative;overflow:hidden}.tech-panel:before{content:"";position:absolute;inset:-20% -30% auto auto;width:220px;height:220px;background:#2980FE;opacity:.25;filter:blur(60px)}.tech-line{position:relative;border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:14px;margin:12px 0;background:rgba(255,255,255,.05)}.tech-line span{color:#a8c7ff;font-weight:800;font-size:13px}.process-steps{display:grid;gap:14px}.step-card{padding:20px;position:relative}.step-number{width:34px;height:34px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:12px}.risk-card{padding:18px;border-left:4px solid var(--blue)}.risk-card .action{font-weight:800;color:#344054}.faq-item{padding:20px}.faq-item h3{font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{background:var(--gradient);color:#fff;text-align:center;padding:58px 0}.cta-section .container{max-width:820px}.cta-section p{color:rgba(255,255,255,.86)}.cta-section .download-btn{margin-top:14px;background:var(--blue)}
.page-hero{padding:58px 0 34px;background:linear-gradient(180deg,#f4f7ff 0%,#fff 100%)}.page-hero .summary{font-size:18px;color:var(--muted);max-width:780px}.page-layout{display:grid;gap:24px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}.article-card p{color:#4b5565}.article-card ul,.article-card ol{padding-left:20px;color:#4b5565}.side-panel{background:#f8fafc;border:1px solid var(--line);border-radius:26px;padding:20px;position:sticky;top:92px}.side-panel a{display:block;color:var(--blue);font-weight:800;margin-top:10px}.check-list{display:grid;gap:12px;margin:18px 0}.check-item{background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:14px}.download-row{margin-top:24px}.download-page-panel{max-width:840px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:34px;padding:26px;box-shadow:var(--shadow)}.download-steps{display:grid;gap:14px;margin:22px 0}.download-step{display:flex;gap:14px;align-items:flex-start;background:var(--soft);border-radius:20px;padding:16px}.download-step b{background:var(--blue);color:#fff;border-radius:10px;width:30px;height:30px;display:grid;place-items:center;flex:0 0 auto}.faq-list{display:grid;gap:14px}.about-values{display:grid;gap:16px}.site-footer{background:#0f172a;color:#cbd5e1;padding:46px 0 22px}.site-footer h2{font-size:16px;color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#cbd5e1;margin:8px 0}.site-footer p{color:#94a3b8;margin:0}.footer-brand{font-size:22px;color:#fff;font-weight:900;margin-bottom:12px}.footer-grid{display:grid;gap:26px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;color:#94a3b8;font-size:14px}
@media (min-width: 720px){
    .container{width:min(1120px, calc(100% - 56px))}.privacy-summary{grid-template-columns:repeat(3,1fr)}.split{grid-template-columns:1.05fr .95fr}.split.reverse .visual{order:2}.policy-grid,.protocol-grid,.device-grid{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}.about-values{grid-template-columns:repeat(2,1fr)}.download-steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width: 980px){
    .site-nav{position:static;display:flex;align-items:center;gap:2px;background:transparent;border:0;box-shadow:none;padding:0}.site-nav a{padding:8px 11px}.nav-toggle{display:none}.hero-grid{grid-template-columns:1fr .88fr}.vpn-lab-hero{padding:88px 0 86px}.risk-grid{grid-template-columns:repeat(4,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 300px}.section{padding:82px 0}.page-hero{padding:76px 0 42px}.article-card{padding:34px}
}
@media (max-width: 420px){
    .container{width:min(100% - 24px,1120px)}.download-btn{width:100%;padding-left:16px;padding-right:16px}.hero-actions .download-btn{width:auto}.floating-card{font-size:12px;padding:8px 10px}.floating-card.two{right:0}.floating-card.one{left:0}.section{padding:52px 0}.page-hero{padding:42px 0 26px}
}