:root{
  --gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);
  --blue:#2980FE;
  --blue-dark:#1768E8;
  --text:#202636;
  --muted:#667085;
  --light:#F5F7FB;
  --soft:#EEF4FF;
  --border:#E5EAF3;
  --white:#fff;
  --shadow:0 18px 50px rgba(42,65,120,.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%;display:block}
.content-container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#172033;letter-spacing:.2px}
.logo{width:38px;height:38px;border-radius:12px;object-fit:cover;background:#eef4ff}
.site-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:12px;box-shadow:var(--shadow)}
.site-nav a{display:block;padding:10px 12px;color:#374151;font-size:14px;border-radius:12px}
.site-nav a:hover{background:var(--soft);color:var(--blue)}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-toggle-label{display:grid;gap:5px;width:42px;height:42px;align-content:center;justify-content:center;border:1px solid var(--border);border-radius:14px;background:#fff}
.nav-toggle-label span{display:block;width:20px;height:2px;background:#283246;border-radius:4px}
.nav-toggle:checked~.site-nav{display:block}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 24px;border-radius:999px;background:var(--blue);color:#fff!important;font-weight:700;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:58px 0}
.section.alt{background:var(--light)}
.section-title{max-width:760px;margin:0 auto 28px;text-align:center}
.section-title .eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:#EAF2FF;color:var(--blue);font-size:13px;font-weight:700;margin-bottom:10px}
h1,h2,h3{line-height:1.25;margin:0 0 14px;color:#101828}
h1{font-size:clamp(34px,7vw,64px);letter-spacing:-1.8px}
h2{font-size:clamp(26px,4vw,40px);letter-spacing:-.8px}
h3{font-size:20px}
p{margin:0 0 14px;color:var(--muted)}
.text-link{color:var(--blue);font-weight:700}
.text-link:hover{color:var(--blue-dark)}
.gradient-bg{background:var(--gradient);color:#fff}
.gradient-bg h1,.gradient-bg h2,.gradient-bg p{color:#fff}
.vpn-dashboard-hero{background:var(--gradient);padding:58px 0 42px;position:relative;overflow:hidden}
.vpn-dashboard-hero:before{content:"";position:absolute;inset:-20% -10% auto auto;width:460px;height:460px;border-radius:50%;background:rgba(255,255,255,.16);filter:blur(10px)}
.hero-grid{position:relative;display:grid;gap:30px;align-items:center}
.hero-copy{color:#fff}
.hero-copy p{font-size:17px;max-width:650px;color:rgba(255,255,255,.88)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.hero-tags span{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);color:#fff;font-size:13px}
.hero-visual{position:relative;min-height:330px;display:grid;place-items:center}
.hero-visual-panel{width:min(460px,90%);padding:18px;border-radius:30px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(10px);box-shadow:0 30px 80px rgba(0,0,0,.14)}
.hero-visual-panel img{border-radius:24px;margin:auto;max-height:310px;object-fit:contain}
.status-card{position:absolute;background:#fff;color:#172033;border-radius:18px;padding:12px 14px;border:1px solid rgba(255,255,255,.72);box-shadow:0 14px 36px rgba(12,28,80,.18);font-size:13px;font-weight:800}
.status-card small{display:block;color:var(--muted);font-weight:600;margin-top:2px}
.status-card.one{top:6px;left:6px}.status-card.two{top:42px;right:0}.status-card.three{bottom:48px;left:0}.status-card.four{bottom:8px;right:30px}.status-card.five{top:47%;left:50%;transform:translateX(-50%)}
.service-index{margin-top:-24px;position:relative;z-index:5}
.service-index .index-shell{background:#fff;border:1px solid var(--border);border-radius:28px;padding:18px;box-shadow:var(--shadow)}
.service-grid{display:grid;gap:14px}
.service-card{border:1px solid var(--border);background:#fff;border-radius:22px;padding:18px;transition:.2s ease;position:relative;overflow:hidden}
.service-card:before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:var(--gradient);opacity:.85}
.service-card:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(24,44,88,.08)}
.service-card .tag{display:inline-block;padding:4px 9px;border-radius:999px;background:#EAF2FF;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:8px}
.service-card p{font-size:14px;margin-bottom:8px}
.feature-section{display:grid;gap:26px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:30px;padding:22px;box-shadow:var(--shadow)}
.feature-section.reverse .feature-media{order:0}
.feature-media{background:linear-gradient(180deg,#F7FAFF,#EEF4FF);border-radius:26px;min-height:240px;display:grid;place-items:center;padding:20px;border:1px solid var(--border)}
.feature-media img{max-height:300px;object-fit:contain}
.feature-points{display:grid;gap:10px;margin:18px 0}
.feature-points span,.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:14px;background:#F3F7FF;color:#344054;font-size:14px;border:1px solid #E6EEFF}
.feature-points span:before,.pill:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue);flex:0 0 auto}
.vpn-connection-section,.global-nodes-section,.high-speed-section,.privacy-protection-section,.multi-device-section,.no-log-policy-section,.encryption-protocol-section{scroll-margin-top:90px}
.privacy-panel{display:grid;gap:16px;background:#fff;border:1px solid var(--border);border-radius:28px;padding:22px;box-shadow:var(--shadow)}
.privacy-list{display:grid;gap:12px}
.privacy-item{padding:16px;border-radius:20px;background:#F8FAFC;border:1px solid var(--border)}
.category-grid{display:grid;gap:16px}
.category-card,.safety-panel,.faq-item,.risk-card,.step-card,.content-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px;box-shadow:0 8px 28px rgba(16,24,40,.05)}
.category-card strong{display:block;color:#101828;margin-bottom:6px}
.process-steps{display:grid;gap:14px;counter-reset:step}
.step-card{position:relative;padding-left:72px}
.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:36px;height:36px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}
.risk-grid{display:grid;gap:16px}
.risk-card{border-left:4px solid var(--blue)}
.risk-card .risk-name{font-weight:800;color:#101828;margin-bottom:6px}
.risk-card .advice{font-size:14px;color:#475467;background:#F8FAFC;border-radius:14px;padding:10px;margin:10px 0}
.faq-list{display:grid;gap:14px}
.faq-item h3{font-size:18px;margin-bottom:8px}
.cta-section{padding:62px 0;background:var(--gradient);text-align:center;color:#fff}
.cta-section p{color:rgba(255,255,255,.9);max-width:720px;margin:0 auto 22px}
.cta-section .download-btn{background:var(--blue)}
.page-hero{padding:54px 0 38px;background:linear-gradient(180deg,#F7FAFF,#fff)}
.page-hero-inner{display:grid;gap:16px;max-width:900px}
.category-badge{display:inline-flex;width:max-content;align-items:center;padding:6px 12px;border-radius:999px;background:#EAF2FF;color:var(--blue);font-weight:800;font-size:13px}
.page-layout{display:grid;gap:24px;align-items:start}
.article-body{display:grid;gap:18px}
.article-body p{font-size:16px}
.sidebar{display:grid;gap:16px}
.check-list{padding:0;margin:0;list-style:none;display:grid;gap:10px}
.check-list li{padding:12px 14px;background:#F8FAFC;border:1px solid var(--border);border-radius:16px;color:#475467}
.check-list li:before{content:"•";color:var(--blue);font-weight:900;margin-right:8px}
.only-download{margin-top:8px}
.site-footer{background:#101828;color:#D0D5DD;padding:44px 0 18px}
.site-footer p,.site-footer a{color:#98A2B3;font-size:14px}
.site-footer a{display:block;margin:7px 0}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;gap:24px}
.footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:8px}
.site-footer h3{font-size:16px;color:#fff;margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:18px;color:#98A2B3;font-size:13px}
@media (min-width:640px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid,.risk-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:860px){
  .section{padding:78px 0}
  .site-nav{display:flex;position:static;padding:0;border:0;box-shadow:none;background:transparent;gap:4px;align-items:center}
  .site-nav a{padding:8px 10px}
  .nav-toggle-label{display:none}
  .vpn-dashboard-hero{padding:82px 0 76px}
  .hero-grid{grid-template-columns:1.02fr .98fr;gap:48px}
  .service-grid{grid-template-columns:repeat(4,1fr)}
  .service-card:nth-child(1),.service-card:nth-child(2){grid-column:span 2}
  .feature-section{grid-template-columns:1.05fr .95fr;padding:34px}
  .feature-section.reverse .feature-media{order:2}
  .privacy-panel{grid-template-columns:.88fr 1.12fr;padding:34px}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .risk-grid{grid-template-columns:repeat(4,1fr)}
  .page-layout{grid-template-columns:minmax(0,1fr) 320px}
  .footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}
}
@media (min-width:1100px){
  .site-nav a{padding:8px 12px}
  .process-steps{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:420px){
  .content-container{width:min(100% - 24px,1160px)}
  .status-card{position:static;transform:none!important;margin:8px;width:calc(100% - 16px)}
  .hero-visual{display:block;min-height:auto}
  .hero-visual-panel{width:100%;margin-bottom:12px}
  .download-btn{width:100%;padding-left:16px;padding-right:16px}
  .step-card{padding-left:64px}
}