:root{
    --brand-gradient: linear-gradient(90deg, #3558F2 0%, #7B4EF1 50%, #B84DDA 100%);
    --blue:#2980FE;
    --blue-hover:#1768E8;
    --text:#202638;
    --muted:#697386;
    --light:#F4F7FB;
    --line:#E5EAF2;
    --card:#FFFFFF;
    --soft:#EEF5FF;
    --radius:28px;
    --shadow:0 18px 50px rgba(31,55,93,.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:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,234,242,.86)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#172033}
.logo img{width:38px;height:38px;border-radius:12px;object-fit:cover}
.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:14px;font-size:22px;width:44px;height:44px;color:#172033}
.site-nav{display:none;position:absolute;top:66px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}
.site-nav.open{display:grid;gap:4px}
.site-nav a{padding:11px 14px;border-radius:14px;color:#465066;font-size:15px}
.site-nav a.active,.site-nav a:hover{background:#EEF5FF;color:var(--blue)}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.section{padding:68px 0}
.section-soft{background:linear-gradient(180deg,#F7FAFF 0%,#FFFFFF 100%)}
.section-title{max-width:760px;margin:0 auto 30px;text-align:center}
.section-title .eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);background:#EEF5FF;border:1px solid #D9E9FF;border-radius:999px;padding:6px 12px;font-size:14px;font-weight:700;margin-bottom:12px}
h1,h2,h3{line-height:1.25;margin:0;color:#182033}
h1{font-size:38px;letter-spacing:-.6px}
h2{font-size:30px;letter-spacing:-.4px}
h3{font-size:20px}
p{margin:10px 0 0;color:var(--muted)}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:999px;background:var(--blue);color:#fff!important;font-weight:800;box-shadow:0 12px 26px rgba(41,128,254,.24);transition:.2s ease;border:0;white-space:nowrap}
.download-btn:hover{background:var(--blue-hover);transform:translateY(-1px)}
.text-link{display:inline-flex;margin-top:16px;color:var(--blue);font-weight:700}
.kicker-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.kicker-list span,.tag{display:inline-flex;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13px;font-weight:700}
.network-manager-hero{width:min(1180px,calc(100% - 24px));margin:22px auto 0;padding:28px;border-radius:34px;background:var(--brand-gradient);color:#fff;position:relative;overflow:hidden}
.network-manager-hero:before{content:"";position:absolute;inset:-90px -80px auto auto;width:260px;height:260px;background:rgba(255,255,255,.22);filter:blur(12px);border-radius:50%}
.hero-grid{position:relative;display:grid;gap:28px;align-items:center}
.hero-copy h1,.hero-copy p{color:#fff}.hero-copy p{font-size:17px;max-width:640px;opacity:.92}
.hero-actions{display:flex;align-items:center;gap:14px;margin-top:24px;flex-wrap:wrap}
.hero-note{font-size:14px;color:rgba(255,255,255,.85)}
.hero-visual{position:relative;min-height:300px;display:flex;align-items:center;justify-content:center}
.hero-visual .device-card{width:min(430px,100%);background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.25);border-radius:32px;padding:18px;box-shadow:0 22px 60px rgba(26,31,68,.18)}
.hero-visual img{border-radius:24px;margin:auto;max-height:390px;object-fit:contain}
.float-card{position:absolute;background:#fff;color:#273043;border:1px solid rgba(229,234,242,.95);box-shadow:0 18px 38px rgba(23,39,72,.14);border-radius:18px;padding:10px 13px;font-size:13px;font-weight:800}
.float-card.one{left:0;top:24px}.float-card.two{right:0;top:68px}.float-card.three{left:12px;bottom:44px}.float-card.four{right:14px;bottom:18px}
.daily-scenes{display:grid;gap:18px}.scene-card{background:var(--card);border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 12px 36px rgba(31,55,93,.06)}
.scene-card .label,.bento-card .label{display:inline-flex;color:var(--blue);background:#EEF5FF;border-radius:999px;padding:5px 10px;font-size:13px;font-weight:800;margin-bottom:10px}
.scene-card:hover,.bento-card:hover,.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.bento-feature-center{display:grid;gap:18px}.bento-card{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:24px;transition:.2s ease;min-height:180px}.bento-card.featured{background:linear-gradient(180deg,#fff,#F3F7FF)}
.service-panel{background:#fff;border:1px solid var(--line);border-radius:34px;padding:26px;box-shadow:0 16px 46px rgba(31,55,93,.08);display:grid;gap:26px;align-items:center}
.service-panel.reverse .panel-image{order:-1}.panel-copy ul,.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}.panel-copy li,.check-list li{position:relative;padding-left:28px;color:#465066}.panel-copy li:before,.check-list li:before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #EAF3FF}.panel-image{background:#F4F8FF;border-radius:28px;padding:18px;min-height:220px;display:flex;align-items:center;justify-content:center}.panel-image img{max-height:360px;object-fit:contain;border-radius:20px}
.smart-route-section{background:linear-gradient(180deg,#F7FAFF,#EEF5FF)}.route-metrics{display:grid;gap:12px;margin-top:18px}.route-metrics div{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px}.route-metrics strong{display:block;color:#182033}.route-metrics span{font-size:14px;color:var(--muted)}
.public-wifi-section .wifi-layout{display:grid;gap:20px;align-items:center}.safety-panel{background:#fff;border:1px solid var(--line);border-radius:32px;padding:24px;box-shadow:var(--shadow)}.safety-cards{display:grid;gap:14px;margin-top:20px}.safety-cards .info-card{background:#F8FAFD;border:1px solid var(--line);border-radius:22px;padding:18px}.wifi-image{background:linear-gradient(180deg,#EEF5FF,#fff);border:1px solid var(--line);border-radius:32px;padding:20px}.wifi-image img{border-radius:24px;max-height:360px;object-fit:contain;margin:auto}
.privacy-grid,.device-grid,.diagnosis-grid,.account-grid,.risk-grid,.faq-grid,.related-grid{display:grid;gap:16px}.info-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;transition:.2s ease}.info-card.blue-line{border-left:4px solid var(--blue)}.info-card strong{display:block;color:#182033;margin-bottom:6px}
.multi-device-section{background:#F7FAFF}.device-panel{display:grid;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:34px;padding:26px;box-shadow:0 16px 46px rgba(31,55,93,.08)}
.process-steps{display:grid;gap:14px}.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px}.step-card .num{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:var(--brand-gradient);color:#fff;font-weight:900;margin-bottom:12px}
.risk-grid .info-card{border-top:4px solid var(--blue)}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.faq-item h3{font-size:18px}.cta-section{margin:50px auto 0;width:min(1120px,calc(100% - 32px));border-radius:36px;background:var(--brand-gradient);padding:42px 24px;text-align:center;color:#fff;overflow:hidden;position:relative}.cta-section h2,.cta-section p{color:#fff}.cta-section p{opacity:.9;max-width:700px;margin:12px auto 24px}.cta-section .download-btn{background:var(--blue)}
.page-hero{background:linear-gradient(180deg,#F5F8FF,#fff);border-bottom:1px solid var(--line);padding:58px 0 30px}.page-hero-inner{width:min(940px,calc(100% - 32px));margin:0 auto}.page-hero p{font-size:17px}.content-wrap{width:min(1060px,calc(100% - 32px));margin:0 auto;padding:50px 0;display:grid;gap:22px}.article-layout{display:grid;gap:22px}.article-main{background:#fff;border:1px solid var(--line);border-radius:30px;padding:26px;box-shadow:0 10px 34px rgba(31,55,93,.06)}.article-main p{margin-top:14px}.side-panel{background:#F7FAFF;border:1px solid var(--line);border-radius:28px;padding:22px;align-self:start}.note-box{background:#F8FAFD;border:1px solid var(--line);border-radius:24px;padding:20px;margin-top:20px}.download-strip{margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}.guide-list{counter-reset:item;display:grid;gap:14px;margin-top:18px}.guide-list div{counter-increment:item;background:#F8FAFD;border:1px solid var(--line);border-radius:20px;padding:16px}.guide-list div:before{content:counter(item);display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:10px;background:#EAF3FF;color:var(--blue);font-weight:900;margin-right:10px}.plain-list{display:grid;gap:12px;margin-top:18px}.plain-list p{background:#F8FAFD;border:1px solid var(--line);border-radius:18px;padding:14px;margin:0}.download-page-card{text-align:center;background:#fff;border:1px solid var(--line);border-radius:34px;padding:34px;box-shadow:var(--shadow)}
.site-footer{background:#172033;color:#D7DEEA;margin-top:40px}.footer-inner{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:42px 0;display:grid;gap:30px}.footer-logo{display:flex;gap:10px;align-items:center;color:#fff;font-size:20px}.footer-logo img{width:38px;height:38px;border-radius:12px;object-fit:cover}.footer-brand p{color:#AEB8CA;max-width:430px}.footer-links{display:grid;gap:20px}.footer-links h3{color:#fff;font-size:16px;margin-bottom:10px}.footer-links a{display:block;color:#AEB8CA;margin:8px 0;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.1);padding:16px;color:#AEB8CA;font-size:13px}
@media (min-width:680px){
    h1{font-size:48px}h2{font-size:36px}.network-manager-hero{padding:42px}.daily-scenes{grid-template-columns:repeat(2,1fr)}.bento-feature-center{grid-template-columns:repeat(2,1fr)}.privacy-grid,.diagnosis-grid,.account-grid,.risk-grid,.faq-grid,.related-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-links{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:980px){
    .nav-toggle{display:none}.site-nav{position:static;display:flex;align-items:center;gap:2px;border:0;box-shadow:none;padding:0;background:transparent}.hero-grid{grid-template-columns:1.05fr .95fr}.daily-scenes{grid-template-columns:repeat(3,1fr)}.bento-feature-center{grid-template-columns:repeat(6,1fr)}.bento-card{grid-column:span 2}.bento-card.featured{grid-column:span 3;min-height:230px}.service-panel,.device-panel{grid-template-columns:1fr 1fr;padding:34px}.service-panel.reverse .panel-image{order:2}.public-wifi-section .wifi-layout{grid-template-columns:1.15fr .85fr}.safety-cards{grid-template-columns:repeat(3,1fr)}.privacy-grid,.account-grid{grid-template-columns:repeat(3,1fr)}.diagnosis-grid{grid-template-columns:repeat(4,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:1fr 310px}.footer-inner{grid-template-columns:1fr 1.5fr}.header-inner{padding-left:24px;padding-right:24px}.section{padding:86px 0}
}
@media (max-width:420px){
    .network-manager-hero{border-radius:26px;padding:22px}.float-card{position:static;margin:8px;display:inline-flex}.hero-visual{display:block;min-height:0}.download-btn{width:100%}.hero-actions{align-items:stretch}.article-main,.download-page-card{padding:22px}.section{padding:54px 0}
}