:root{
    --gradient: linear-gradient(90deg, #3558F2 0%, #7B4EF1 50%, #B84DDA 100%);
    --blue:#2980FE;
    --blue-dark:#1768E8;
    --text:#1f2937;
    --muted:#667085;
    --light:#f5f7fb;
    --line:#e5eaf3;
    --card:#ffffff;
    --soft:#eef4ff;
    --radius:24px;
    --shadow:0 18px 50px rgba(31,41,55,.10);
}
*{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;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 36px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#101828;letter-spacing:.2px}
.brand-logo{width:38px;height:38px;border-radius:12px;object-fit:cover;box-shadow:0 8px 24px rgba(41,128,254,.18)}
.brand-text{font-size:18px}
.nav-toggle{display:none}
.nav-toggle-label{display:flex;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:14px;background:#fff}
.nav-toggle-label span{width:20px;height:2px;background:#344054;border-radius:999px}
.site-nav{display:none;position:absolute;left:18px;right:18px;top:70px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:12px}
.site-nav a{display:block;padding:12px 14px;border-radius:12px;color:#344054;font-size:15px}
.site-nav a:hover{background:var(--soft);color:var(--blue)}
.nav-toggle:checked~.site-nav{display:block}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 22px;border-radius:999px;background:#2980FE;color:#fff;font-weight:800;box-shadow:0 12px 30px rgba(41,128,254,.32);transition:.2s ease;border:0;white-space:nowrap}
.download-btn:hover{background:#1768E8;transform:translateY(-1px)}
.section{padding:64px 0}
.section.alt{background:var(--light)}
.section-title{font-size:clamp(28px,4vw,42px);line-height:1.18;margin:0 0 14px;color:#101828;letter-spacing:-.03em}
.section-lead{margin:0 0 28px;color:var(--muted);max-width:760px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#eef4ff;color:#2367d8;font-weight:800;font-size:13px;border:1px solid #d7e5ff}
.text-link{color:var(--blue);font-weight:800}
.text-link:hover{color:var(--blue-dark)}
.vpn-dashboard-hero{background:var(--gradient);color:#fff;padding:74px 0 56px;position:relative;overflow:hidden}
.vpn-dashboard-hero:before,.vpn-dashboard-hero:after{content:"";position:absolute;border-radius:999px;background:rgba(255,255,255,.18);filter:blur(3px)}
.vpn-dashboard-hero:before{width:320px;height:320px;right:-120px;top:-120px}.vpn-dashboard-hero:after{width:260px;height:260px;left:-120px;bottom:-120px}
.hero-grid{position:relative;z-index:1;display:grid;gap:34px;align-items:center}
.hero-copy h1{font-size:clamp(34px,8vw,62px);line-height:1.05;margin:16px 0 18px;letter-spacing:-.05em;max-width:680px}
.hero-copy p{font-size:17px;color:rgba(255,255,255,.88);margin:0 0 22px;max-width:650px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:13px;font-weight:700}
.hero-panel{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);border-radius:30px;padding:18px;box-shadow:0 30px 70px rgba(20,32,90,.22);backdrop-filter:blur(12px)}
.hero-image-card{background:#fff;border-radius:26px;padding:16px;box-shadow:0 22px 60px rgba(0,0,0,.18)}
.hero-image-card img{border-radius:18px;width:100%}
.status-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:14px}
.status-card{background:rgba(255,255,255,.92);color:#1f2937;border-radius:18px;padding:14px;border:1px solid rgba(255,255,255,.7)}
.status-card strong{display:block;color:#101828;font-size:15px}.status-card span{display:block;font-size:13px;color:#667085;margin-top:2px}
.service-index{padding:58px 0;background:#fff}
.service-grid{display:grid;gap:16px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 32px rgba(31,41,55,.06);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:.82}.service-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.service-card .pill{display:inline-block;padding:3px 9px;border-radius:999px;background:#eef4ff;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:12px}
.service-card h3{margin:0 0 8px;font-size:20px;color:#101828}.service-card p{margin:0 0 14px;color:var(--muted);font-size:15px}
.feature-block{display:grid;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:0 16px 44px rgba(31,41,55,.08)}
.feature-block.reverse .feature-media{order:-1}
.feature-copy h2{font-size:clamp(28px,4vw,42px);line-height:1.18;margin:10px 0 14px;color:#101828;letter-spacing:-.03em}
.feature-copy p{color:var(--muted);margin:0 0 16px}.feature-copy ul{padding-left:18px;color:#344054;margin:14px 0 18px}.feature-copy li{margin:8px 0}
.feature-media{background:linear-gradient(180deg,#f7faff,#edf3ff);border-radius:24px;padding:18px;border:1px solid #dfe8f8}.feature-media img{border-radius:18px;margin:auto}
.vpn-connection-section{background:#fff}.global-nodes-section{background:#f8fbff}.high-speed-section{background:#f5f7fb}.privacy-protection-section{background:#fff}.multi-device-section{background:#f8fbff}.no-log-policy-section{background:#fff}.encryption-protocol-section{background:#f5f7fb}
.panel-grid{display:grid;gap:16px}.info-panel,.safety-panel,.tech-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 12px 32px rgba(31,41,55,.06)}
.info-panel h3,.safety-panel h3,.tech-panel h3{margin:0 0 8px;color:#101828}.info-panel p,.safety-panel p,.tech-panel p{margin:0;color:var(--muted)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.tag-list span{padding:7px 11px;border-radius:999px;background:#eef4ff;color:#2367d8;border:1px solid #d7e5ff;font-weight:700;font-size:13px}
.process-steps{display:grid;gap:16px;counter-reset:step}.step-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 30px rgba(31,41,55,.06);position:relative}.step-num{width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;font-weight:900;margin-bottom:12px}.step-card h3{margin:0 0 8px}.step-card p{margin:0 0 10px;color:var(--muted)}
.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;box-shadow:0 10px 28px rgba(31,41,55,.06)}.risk-card h3{margin:0 0 8px}.risk-card p{margin:0 0 8px;color:var(--muted)}.risk-card strong{color:#344054}
.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 26px rgba(31,41,55,.05)}.faq-item h3{margin:0 0 8px;color:#101828}.faq-item p{margin:0;color:var(--muted)}
.cta-section{padding:68px 0;background:var(--gradient);color:#fff;text-align:center}.cta-card{max-width:760px;margin:auto}.cta-card h2{font-size:clamp(30px,4vw,46px);line-height:1.18;margin:0 0 14px}.cta-card p{margin:0 auto 24px;color:rgba(255,255,255,.88)}
.page-hero{padding:56px 0;background:linear-gradient(180deg,#f8fbff,#fff)}.compact-hero .container{display:grid;gap:20px}.page-hero h1{font-size:clamp(32px,6vw,52px);line-height:1.12;margin:14px 0;color:#101828;letter-spacing:-.04em}.page-hero p{color:var(--muted);margin:0;max-width:760px}.hero-note{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 10px 30px rgba(31,41,55,.06)}.hero-note h2{margin:0 0 8px;font-size:18px}.hero-note p{font-size:15px}
.content-section{padding:54px 0}.article-layout{display:grid;gap:24px}.article-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 14px 42px rgba(31,41,55,.07)}.article-card h2{margin:22px 0 10px;color:#101828}.article-card p{color:#4b5563}.article-card ul,.article-card ol{padding-left:20px;color:#344054}.article-card li{margin:8px 0}.side-card{background:#f8fbff;border:1px solid var(--line);border-radius:24px;padding:20px;height:max-content}.side-card h2,.side-card h3{margin:0 0 10px}.side-card a{display:block;color:var(--blue);font-weight:800;margin-top:8px}.check-list{display:grid;gap:10px;margin:18px 0}.check-list div{padding:12px 14px;background:#f8fbff;border:1px solid var(--line);border-radius:16px;color:#344054}.notice-box{background:#eef4ff;border:1px solid #d7e5ff;border-radius:20px;padding:18px;color:#344054;margin:18px 0}.download-area{margin-top:24px}.download-page-card{text-align:center}.download-page-card .download-btn{margin:18px auto 4px}.download-steps{display:grid;gap:14px;margin-top:24px}.download-steps .step-card{text-align:left}
.about-grid{display:grid;gap:18px}.about-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 30px rgba(31,41,55,.05)}.about-card h2{margin:0 0 8px}.about-card p{margin:0;color:var(--muted)}
.site-footer{background:#101828;color:#d0d5dd;padding:46px 0 24px}.footer-grid{display:grid;gap:24px}.footer-brand{font-weight:900;font-size:22px;color:#fff;margin-bottom:8px}.site-footer p{margin:0;color:#aab3c2}.site-footer h3{color:#fff;margin:0 0 10px}.site-footer a{display:block;color:#d0d5dd;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;font-size:14px;color:#98a2b3}
@media (min-width:640px){.service-grid{grid-template-columns:repeat(2,1fr)}.status-grid{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.panel-grid{grid-template-columns:repeat(2,1fr)}.download-steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.nav-toggle-label{display:none}.site-nav{display:flex;position:static;box-shadow:none;border:0;padding:0;background:transparent;align-items:center;gap:4px}.site-nav a{display:inline-flex;padding:9px 11px;font-size:14px}.hero-grid{grid-template-columns:1.05fr .95fr}.service-grid{grid-template-columns:repeat(4,1fr)}.service-grid .service-card:nth-child(1),.service-grid .service-card:nth-child(2){grid-column:span 2}.feature-block{grid-template-columns:1.05fr .95fr;padding:34px}.feature-block.reverse .feature-media{order:2}.feature-block.reverse{grid-template-columns:.95fr 1.05fr}.panel-grid{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.compact-hero .container{grid-template-columns:1.4fr .6fr;align-items:center}.article-layout{grid-template-columns:minmax(0,1fr) 320px}.article-card{padding:34px}.about-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr .8fr .8fr}}
@media (min-width:1100px){.service-grid{grid-template-columns:repeat(7,1fr)}.service-grid .service-card{grid-column:span 1}.service-grid .service-card:nth-child(1),.service-grid .service-card:nth-child(2){grid-column:span 2}.service-grid .service-card:nth-child(3){grid-column:span 3}.process-steps{grid-template-columns:repeat(6,1fr)}}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.download-btn{width:100%;padding:13px 18px}.hero-panel{padding:12px}.feature-block,.article-card{padding:18px;border-radius:22px}.section{padding:48px 0}.service-index{padding:44px 0}.site-nav{left:12px;right:12px}}