:root{
    --gradient: linear-gradient(90deg, #3558F2 0%, #7B4EF1 50%, #B84DDA 100%);
    --blue:#2980FE;
    --blue-hover:#1768E8;
    --text:#1f2937;
    --muted:#667085;
    --soft:#f5f7fb;
    --line:#e6ebf2;
    --deep:#111827;
    --radius:24px;
    --shadow:0 18px 48px rgba(37,55,108,.12);
}
*{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:var(--text);background:#fff;line-height:1.75;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
main{min-height:60vh}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.section{padding:72px 0}.section-soft{background:linear-gradient(180deg,#f7f9ff 0%,#fff 100%)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,235,242,.9)}
.header-inner{width:min(1180px,calc(100% - 32px));margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo,.footer-logo{display:flex;align-items:center;gap:10px;font-weight:800;color:#182238;letter-spacing:.02em}.logo img,.footer-logo img{width:38px;height:38px;border-radius:12px;object-fit:cover}.logo span{font-size:22px}.main-nav{display:none;align-items:center;gap:4px;flex-wrap:wrap}.main-nav a{padding:10px 12px;color:#455269;font-size:15px;border-radius:999px}.main-nav a:hover,.main-nav a.active{color:var(--blue);background:#eef5ff}.nav-toggle{border:1px solid var(--line);background:#fff;color:#1f2a44;border-radius:999px;padding:9px 16px;font-weight:700}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;border-radius:999px;background:var(--blue);color:#fff!important;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.24);transition:transform .2s ease,background .2s ease,box-shadow .2s ease}.download-btn:hover{background:var(--blue-hover);transform:translateY(-2px);box-shadow:0 18px 34px rgba(23,104,232,.28)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:700}.text-link:hover{color:var(--blue-hover)}.badge{display:inline-flex;align-items:center;border:1px solid rgba(41,128,254,.18);background:#eef5ff;color:var(--blue);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:800}.eyebrow{display:inline-flex;align-items:center;border-radius:999px;background:rgba(255,255,255,.17);color:#fff;padding:7px 12px;font-size:13px;font-weight:800}.muted{color:var(--muted)}
.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 18% 25%,rgba(255,255,255,.2),transparent 24%),radial-gradient(circle at 82% 15%,rgba(255,255,255,.16),transparent 22%),linear-gradient(135deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:auto,auto,42px 42px;opacity:.9}.hero-inner{position:relative;width:min(1180px,calc(100% - 32px));margin:0 auto;padding:82px 0 64px;display:grid;gap:40px}.hero-copy h1{font-size:clamp(34px,8vw,64px);line-height:1.08;margin:18px 0 20px;letter-spacing:-.04em}.hero-copy p{font-size:clamp(16px,2vw,19px);max-width:660px;color:rgba(255,255,255,.88);margin:0 0 24px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.hero-tags span{border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);padding:8px 12px;border-radius:999px;font-size:13px}.hero-visual{position:relative;min-height:360px;display:grid;place-items:center}.visual-panel{position:relative;width:min(460px,92%);padding:24px;border-radius:32px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);box-shadow:0 24px 90px rgba(16,24,40,.22)}.visual-panel img{border-radius:28px;margin:auto}.status-card{position:absolute;background:rgba(255,255,255,.94);color:#23324d;border:1px solid rgba(255,255,255,.7);box-shadow:0 14px 38px rgba(16,24,40,.18);border-radius:18px;padding:10px 13px;font-size:13px;font-weight:800}.status-card.one{top:16px;left:2px}.status-card.two{right:0;top:72px}.status-card.three{left:12px;bottom:58px}.status-card.four{right:18px;bottom:10px}.network-lines{position:absolute;inset:20px;border-radius:36px;border:1px dashed rgba(255,255,255,.24);pointer-events:none}.network-lines:before,.network-lines:after{content:"";position:absolute;width:12px;height:12px;background:#fff;border-radius:50%;box-shadow:0 0 24px #fff}.network-lines:before{left:20%;top:22%}.network-lines:after{right:18%;bottom:25%}
.node-overview{margin-top:-36px;position:relative;z-index:2}.overview-grid{display:grid;gap:16px}.node-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow)}.node-card .tag{display:inline-flex;margin-bottom:14px;color:var(--blue);font-weight:800;font-size:13px;background:#eef5ff;border-radius:999px;padding:4px 9px}.node-card h3{margin:0 0 8px;font-size:20px}.node-card p{margin:0 0 14px;color:var(--muted)}
.section-title{max-width:760px;margin:0 auto 34px;text-align:center}.section-title h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:10px 0;color:var(--deep);letter-spacing:-.03em}.section-title p{margin:0;color:var(--muted)}.split-section{display:grid;gap:28px;align-items:center}.feature-copy h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:10px 0 14px;color:var(--deep);letter-spacing:-.03em}.feature-copy p{color:var(--muted);margin:0 0 18px}.feature-list{display:grid;gap:12px;margin:22px 0}.feature-item{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.feature-item:before{content:"";width:10px;height:10px;flex:0 0 10px;margin-top:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #e8f2ff}.image-card{background:#fff;border:1px solid var(--line);border-radius:32px;padding:18px;box-shadow:var(--shadow)}.image-card img{border-radius:24px;margin:auto}
.global-nodes-section{background:linear-gradient(180deg,#fff 0%,#f7f9ff 100%)}.map-panel{position:relative;overflow:hidden;border-radius:32px;padding:24px;background:linear-gradient(135deg,#f8fbff,#eef4ff);border:1px solid var(--line);min-height:360px}.map-panel:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(41,128,254,.18) 0 8px,transparent 9px),radial-gradient(circle at 72% 26%,rgba(123,78,241,.2) 0 7px,transparent 8px),radial-gradient(circle at 52% 70%,rgba(184,77,218,.17) 0 8px,transparent 9px),linear-gradient(135deg,rgba(41,128,254,.12) 1px,transparent 1px);background-size:auto,auto,auto,36px 36px}.map-panel img{position:relative;z-index:1;margin:auto;border-radius:26px}.node-floating{position:relative;z-index:2;display:grid;gap:12px;margin-top:18px}.node-floating div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:0 12px 30px rgba(37,55,108,.1)}
.speed-grid{display:grid;gap:18px}.speed-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.speed-card strong{font-size:22px;color:var(--deep)}.speed-card p{color:var(--muted);margin:8px 0 0}.privacy-panel{background:#fff;border:1px solid var(--line);border-radius:32px;padding:26px;box-shadow:var(--shadow)}.privacy-tags{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.privacy-tags span{background:#f1f6ff;color:#315b9f;border:1px solid #dceaff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.policy-grid{display:grid;gap:18px}.policy-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 12px 34px rgba(37,55,108,.08)}.device-grid{display:grid;gap:16px}.device-card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:20px}.protocol-panel{border-radius:32px;background:#18233b;color:#fff;padding:28px;display:grid;gap:16px}.protocol-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:18px}.protocol-card p{color:rgba(255,255,255,.72);margin:8px 0 0}.process-steps{display:grid;gap:16px}.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.step-number{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#eef5ff;color:var(--blue);font-weight:900;margin-bottom:10px}.risk-grid{display:grid;gap:16px}.risk-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:20px;padding:18px}.risk-card h3{margin:0 0 8px}.risk-card p{margin:0 0 10px;color:var(--muted)}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{background:var(--gradient);color:#fff;text-align:center;padding:68px 0;border-radius:36px;width:min(1120px,calc(100% - 32px));margin:30px auto 72px;position:relative;overflow:hidden}.cta-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.18),transparent 30%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.14),transparent 26%)}.cta-section .container{position:relative}.cta-section h2{font-size:clamp(28px,5vw,44px);line-height:1.2;margin:0 0 12px}.cta-section p{color:rgba(255,255,255,.86);max-width:680px;margin:0 auto 24px}
.page-hero{padding:58px 0;background:linear-gradient(180deg,#f7f9ff 0%,#fff 100%);border-bottom:1px solid var(--line)}.page-hero-inner{width:min(980px,calc(100% - 32px));margin:0 auto}.page-hero h1{font-size:clamp(32px,6vw,52px);line-height:1.15;margin:14px 0;color:var(--deep);letter-spacing:-.03em}.page-hero p{font-size:18px;color:var(--muted);margin:0}.page-layout{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:56px 0;display:grid;gap:28px}.content-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 12px 34px rgba(37,55,108,.08)}.content-card h2{font-size:28px;line-height:1.25;margin:0 0 12px;color:var(--deep)}.content-card p{color:var(--muted);margin:0 0 18px}.info-grid{display:grid;gap:16px;margin:24px 0}.info-card{background:#f8fbff;border:1px solid var(--line);border-radius:20px;padding:18px}.info-card h3{margin:0 0 8px}.check-list{display:grid;gap:12px;margin:20px 0}.check-list li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:16px;padding:13px 14px}.notice{border-radius:22px;background:#f1f6ff;border:1px solid #dceaff;padding:18px;color:#35537b}.side-card h3{margin:0 0 12px}.side-card a{display:block;color:var(--blue);font-weight:700;margin:10px 0}.download-block{margin-top:24px}.download-page .download-block{text-align:center}.install-steps{counter-reset:item;display:grid;gap:14px;margin:24px 0}.install-steps li{list-style:none;counter-increment:item;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 16px 16px 58px;position:relative}.install-steps li:before{content:counter(item);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;background:#eef5ff;color:var(--blue);font-weight:900;display:grid;place-items:center}.site-footer{background:#111827;color:#d5dbea;padding-top:54px}.footer-inner{width:min(1180px,calc(100% - 32px));margin:0 auto;display:grid;gap:34px}.footer-brand p{color:#aab4c5;max-width:420px}.footer-logo span{color:#fff}.footer-grid{display:grid;gap:24px}.footer-grid h3{color:#fff;margin:0 0 10px}.footer-grid a{display:block;color:#aab4c5;margin:8px 0}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding:18px 16px;text-align:center;color:#8f9bae;font-size:14px}
@media (min-width:700px){.overview-grid{grid-template-columns:repeat(2,1fr)}.speed-grid,.policy-grid,.device-grid,.risk-grid,.info-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.nav-toggle{display:none}.main-nav{display:flex}.hero-inner{grid-template-columns:1.03fr .97fr;align-items:center;padding:104px 0 86px}.overview-grid{grid-template-columns:repeat(4,1fr)}.split-section{grid-template-columns:1fr 1fr}.split-section.reverse .feature-copy{order:2}.split-section.reverse .image-card,.split-section.reverse .map-panel{order:1}.speed-grid{grid-template-columns:repeat(3,1fr)}.policy-grid{grid-template-columns:repeat(3,1fr)}.device-grid{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-inner{grid-template-columns:1.2fr 1.8fr}.footer-grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:959px){.main-nav{position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:12px}.main-nav.is-open{display:grid;grid-template-columns:1fr 1fr}.main-nav a{padding:12px}.section{padding:54px 0}.hero-inner{padding:58px 0}.status-card{position:static;margin:8px;display:inline-flex}.hero-visual{min-height:auto}.visual-panel{margin-top:10px}.cta-section{border-radius:28px;padding:54px 0}.page-layout{padding:42px 0}.content-card,.side-card{padding:20px}} 
@media (max-width:520px){.main-nav.is-open{grid-template-columns:1fr}.header-inner{min-height:66px}.logo img{width:34px;height:34px}.hero-actions{align-items:stretch}.download-btn{width:100%;padding:14px 18px}.hero-tags span{width:100%;text-align:center}.node-overview{margin-top:-20px}.section-title{text-align:left}.risk-grid{grid-template-columns:1fr}.page-hero h1{font-size:32px}}