:root{
  --gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);
  --blue:#2980FE;
  --blue-dark:#1768E8;
  --text:#202634;
  --muted:#667085;
  --line:#E6EAF2;
  --soft:#F5F7FB;
  --soft-blue:#F1F6FF;
  --white:#FFFFFF;
  --radius:24px;
  --shadow:0 18px 45px rgba(32,38,52,.08);
}
*{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:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;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 var(--line)}
.header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:#172033;letter-spacing:.2px}
.logo img{width:40px;height:40px;border-radius:12px;object-fit:cover;box-shadow:0 8px 18px rgba(41,128,254,.18)}
.site-nav{display:none;align-items:center;gap:6px;flex-wrap:wrap}
.site-nav a{font-size:14px;color:#445066;padding:9px 12px;border-radius:999px;transition:.2s ease}
.site-nav a:hover,.site-nav a.active{background:#EEF5FF;color:#1768E8}
.nav-toggle{border:1px solid var(--line);background:#fff;color:#1F2A44;border-radius:14px;width:42px;height:42px;font-size:20px}
.site-nav.open{display:flex;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:14px;flex-direction:column;align-items:stretch}
.site-nav.open a{padding:12px 14px}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;background:var(--blue);color:#fff!important;border-radius:999px;font-weight:800;box-shadow:0 12px 24px rgba(41,128,254,.28);transition:.2s ease;border:0;white-space:nowrap}
.download-btn:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 14px 28px rgba(23,104,232,.28)}
.section{padding:64px 0}
.section-soft{background:var(--soft)}
.section-title{font-size:30px;line-height:1.25;margin:0 0 14px;color:#172033;letter-spacing:-.5px}
.section-lead{margin:0 0 28px;color:var(--muted);max-width:780px}
.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#EEF5FF;color:#1768E8;font-size:13px;font-weight:800;margin-bottom:14px}
.vpn-dashboard-hero{background:var(--gradient);color:#fff;padding:70px 0 72px;position:relative;overflow:hidden}
.vpn-dashboard-hero:before{content:"";position:absolute;inset:-120px auto auto 40%;width:440px;height:440px;border-radius:50%;background:rgba(255,255,255,.13);filter:blur(6px)}
.vpn-dashboard-hero:after{content:"";position:absolute;right:-120px;bottom:-120px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.11)}
.hero-grid{position:relative;display:grid;gap:34px;align-items:center}
.hero-copy h1{font-size:40px;line-height:1.12;margin:0 0 18px;letter-spacing:-1px}
.hero-copy p{color:rgba(255,255,255,.88);font-size:17px;margin:0 0 24px;max-width:620px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.hero-tags span{padding:8px 12px;border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.12);border-radius:999px;font-size:13px;color:#fff}
.hero-console{position:relative;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);border-radius:30px;padding:18px;box-shadow:0 24px 60px rgba(11,24,80,.20);backdrop-filter:blur(18px)}
.hero-console img{width:78%;margin:0 auto;border-radius:28px;filter:drop-shadow(0 24px 35px rgba(19,34,86,.25))}
.status-stack{display:grid;gap:10px;margin-top:16px}
.status-card{display:flex;align-items:center;justify-content:space-between;gap:12px;background:rgba(255,255,255,.92);color:#1F2A44;border-radius:18px;padding:12px 14px;box-shadow:0 10px 28px rgba(18,25,58,.12)}
.status-card b{font-size:14px}.status-card span{font-size:12px;color:#667085}.status-dot{width:10px;height:10px;border-radius:50%;background:#35C58B;box-shadow:0 0 0 5px rgba(53,197,139,.16)}
.service-index{margin-top:-34px;position:relative;z-index:2}
.service-index-panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:28px;padding:20px}
.service-index h2{font-size:24px;margin:0 0 16px}.service-grid{display:grid;gap:14px}.service-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;transition:.2s ease;min-height:150px}.service-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.service-card .tag{display:inline-flex;background:#EEF5FF;color:#1768E8;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800;margin-bottom:10px}.service-card h3{margin:0 0 8px;font-size:18px}.service-card p{margin:0 0 12px;color:var(--muted);font-size:14px}.text-link{display:inline-flex;color:#1768E8;font-weight:800;font-size:14px}
.feature-layout{display:grid;gap:24px;align-items:center}.feature-card{background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}.feature-card img{border-radius:24px;margin:auto;max-height:360px;object-fit:contain}.feature-points{display:grid;gap:12px;margin:20px 0}.feature-point{display:flex;gap:10px;align-items:flex-start;color:#42506A}.feature-point:before{content:"";width:10px;height:10px;margin-top:8px;border-radius:50%;background:var(--blue);flex:0 0 10px}.split-panel{background:var(--soft-blue);border:1px solid #DDEAFF;border-radius:30px;padding:24px}.node-grid,.privacy-grid,.device-grid,.policy-grid,.protocol-grid,.risk-grid,.faq-grid,.card-grid{display:grid;gap:16px}.mini-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.mini-card h3{margin:0 0 8px;font-size:17px}.mini-card p{margin:0;color:var(--muted);font-size:14px}.safety-panel{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow);border-left:5px solid var(--blue)}.process-steps{display:grid;gap:14px}.step-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;position:relative}.step-number{width:36px;height:36px;border-radius:12px;background:#EEF5FF;color:#1768E8;display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:10px}.risk-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;border-top:4px solid var(--blue)}.risk-card h3,.faq-item h3{margin:0 0 8px;font-size:17px}.risk-card p,.faq-item p{margin:0 0 10px;color:var(--muted);font-size:14px}.risk-card small{display:block;color:#344054}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.cta-section{background:var(--gradient);color:#fff;text-align:center;padding:62px 0}.cta-section h2{font-size:30px;margin:0 0 12px}.cta-section p{margin:0 auto 24px;max-width:680px;color:rgba(255,255,255,.88)}.cta-section .download-btn{background:#2980FE}.page-hero{padding:58px 0;background:linear-gradient(180deg,#F3F7FF 0%,#fff 100%)}.page-hero h1{font-size:34px;line-height:1.18;margin:0 0 14px;color:#172033}.page-hero p{margin:0;color:var(--muted);max-width:780px}.content-layout{display:grid;gap:24px;align-items:start}.content-main{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}.content-main h2{font-size:24px;margin:0 0 12px}.content-main p{color:#46546C;margin:0 0 16px}.content-main ul,.content-main ol{padding-left:20px;color:#46546C}.side-panel{background:#F8FAFE;border:1px solid var(--line);border-radius:26px;padding:20px;position:sticky;top:88px}.side-panel h3{margin:0 0 12px}.check-list{display:grid;gap:10px;margin:18px 0}.check-list li{background:#F8FAFE;border:1px solid var(--line);border-radius:16px;padding:12px;list-style:none}.download-row{margin-top:22px}.install-steps{counter-reset:item;display:grid;gap:14px}.install-steps li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.install-steps li:before{counter-increment:item;content:counter(item);display:inline-flex;width:30px;height:30px;border-radius:10px;background:#EEF5FF;color:#1768E8;align-items:center;justify-content:center;font-weight:900;margin-right:10px}.about-band{background:#fff;border:1px solid var(--line);border-radius:30px;padding:26px;box-shadow:var(--shadow)}.site-footer{background:#172033;color:#D8DEE9;padding-top:46px}.footer-grid{display:grid;gap:26px}.footer-brand{font-size:20px;font-weight:900;color:#fff;margin-bottom:10px}.site-footer p{color:#AEB7C7;margin:0}.site-footer h3{color:#fff;margin:0 0 12px;font-size:16px}.site-footer a{display:block;color:#AEB7C7;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding:18px;color:#AEB7C7;font-size:13px}
@media (min-width:640px){.service-grid{grid-template-columns:repeat(2,1fr)}.status-stack{grid-template-columns:repeat(2,1fr)}.risk-grid,.faq-grid,.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav,.site-nav.open{display:flex;position:static;flex-direction:row;background:transparent;border:0;box-shadow:none;padding:0;align-items:center}.hero-grid{grid-template-columns:1.02fr .98fr}.hero-copy h1{font-size:58px}.service-grid{grid-template-columns:repeat(4,1fr)}.service-card:nth-child(1),.service-card:nth-child(2){grid-column:span 2}.feature-layout{grid-template-columns:1fr 1fr}.feature-layout.reverse .feature-card{order:-1}.node-grid,.privacy-grid,.device-grid,.policy-grid,.protocol-grid{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.3fr .8fr .8fr 1fr}.page-hero h1{font-size:44px}.section-title{font-size:38px}}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.hero-copy h1{font-size:34px}.section{padding:48px 0}.download-btn{width:100%;padding:0 18px}.hero-tags span{font-size:12px}.content-main,.feature-card,.split-panel,.safety-panel{padding:18px;border-radius:22px}}