:root{
    --brand-blue:#2980FE;
    --brand-blue-dark:#1768E8;
    --gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);
    --text:#1d2433;
    --muted:#647084;
    --soft:#f4f7fb;
    --line:#e6ebf2;
    --card:#ffffff;
    --radius:28px;
    --shadow:0 18px 50px rgba(24,43,92,.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:#f8fafd;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.9)}
.header-inner{width:min(1180px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#15223a;white-space:nowrap}.brand-logo{width:42px;height:42px;border-radius:14px;object-fit:cover}.site-nav{position:absolute;left:14px;right:14px;top:72px;display:none;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:24px;padding:12px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.site-nav a{padding:12px 14px;border-radius:14px;color:#3e4b61;font-size:15px}.site-nav a:hover,.site-nav a.active{background:#eef5ff;color:var(--brand-blue)}.nav-toggle{display:inline-flex;flex-direction:column;gap:5px;border:0;background:#eef5ff;border-radius:14px;width:44px;height:44px;align-items:center;justify-content:center}.nav-toggle span{width:20px;height:2px;background:#244061;border-radius:2px}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;border-radius:999px;background:var(--brand-blue);color:#fff!important;font-weight:800;box-shadow:0 12px 30px rgba(41,128,254,.24);transition:.2s ease;border:0}.download-btn:hover{background:var(--brand-blue-dark);transform:translateY(-1px)}
.section{padding:64px 0}.section-head{margin-bottom:28px}.eyebrow,.badge{display:inline-flex;align-items:center;width:max-content;border-radius:999px;background:#eef5ff;color:var(--brand-blue);font-weight:800;font-size:13px;padding:6px 12px;margin-bottom:12px}.section h2,.page-hero h1{margin:0 0 14px;color:#131d31;line-height:1.16}.section h2{font-size:clamp(26px,4.5vw,44px)}.section p,.page-hero p{color:var(--muted);margin:0}.muted{color:var(--muted)}.link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-blue);font-weight:800;margin-top:14px}.link::after{content:"→"}
.network-manager-hero{padding:32px 0 54px}.hero-card{background:var(--gradient);border-radius:34px;padding:28px;overflow:hidden;position:relative;box-shadow:0 24px 70px rgba(53,88,242,.24)}.hero-card::before{content:"";position:absolute;inset:auto -90px -120px auto;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.18);filter:blur(6px)}.hero-grid{display:grid;gap:30px;position:relative;z-index:1}.hero-copy h1{font-size:clamp(34px,9vw,66px);line-height:1.05;margin:0 0 18px;color:#fff;letter-spacing:-.04em}.hero-copy p{font-size:16px;color:rgba(255,255,255,.88);max-width:620px}.hero-actions{margin:24px 0 18px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px}.hero-tags span,.floating-tag{border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.15);color:#fff;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}.hero-visual{position:relative;min-height:310px;display:grid;place-items:center}.hero-visual img{max-height:440px;object-fit:contain;filter:drop-shadow(0 28px 50px rgba(18,29,54,.25))}.floating-tag{position:absolute;background:#fff;color:#2b3a58;box-shadow:0 14px 34px rgba(28,42,86,.18)}.floating-tag.t1{top:10px;left:4px}.floating-tag.t2{top:70px;right:4px}.floating-tag.t3{bottom:70px;left:20px}.floating-tag.t4{bottom:18px;right:18px}.status-card{position:absolute;right:12px;bottom:118px;background:rgba(255,255,255,.94);border-radius:20px;padding:14px;box-shadow:0 18px 40px rgba(22,32,65,.2);min-width:170px}.status-card strong{display:block;color:#14213a}.status-card span{font-size:13px;color:#667085}
.daily-scenes{background:#fff}.scene-grid{display:grid;grid-template-columns:1fr;gap:16px}.scene-card,.bento-card,.info-card,.risk-card,.faq-item,.step-card,.tip-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 34px rgba(26,42,78,.06)}.scene-card .tag,.bento-card .tag{display:inline-flex;color:var(--brand-blue);font-weight:800;font-size:13px;margin-bottom:8px}.scene-card h3,.bento-card h3,.info-card h3,.risk-card h3,.step-card h3,.tip-card h3{margin:0 0 8px;color:#172033}.scene-card p,.bento-card p,.info-card p,.risk-card p,.step-card p,.tip-card p{color:var(--muted);margin:0}.bento-feature-center{background:linear-gradient(180deg,#f8fbff 0%,#fff 100%)}.bento-grid{display:grid;grid-template-columns:1fr;gap:16px}.bento-card.large{background:linear-gradient(180deg,#fff 0%,#f5f9ff 100%)}.bento-card.accent{border-top:4px solid var(--brand-blue)}
.split-panel{display:grid;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow)}.split-panel.reverse .image-wrap{order:-1}.image-wrap{background:linear-gradient(145deg,#eef5ff,#fff);border-radius:30px;padding:18px;min-height:260px;display:grid;place-items:center}.feature-list,.check-list{display:grid;gap:12px;margin:20px 0}.feature-list span,.check-list li{display:flex;gap:10px;align-items:flex-start;color:#42526b}.feature-list span::before,.check-list li::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--brand-blue);margin-top:9px;flex:0 0 auto}.check-list{list-style:none;padding:0}.smart-route-section{background:#f3f7fc}.route-panel{display:grid;gap:18px}.route-card{background:#fff;border-radius:30px;padding:22px;border:1px solid var(--line)}.route-meter{height:10px;background:#e8eef7;border-radius:999px;overflow:hidden;margin:14px 0}.route-meter span{display:block;height:100%;width:72%;background:var(--gradient);border-radius:inherit}.public-wifi-section .wifi-layout,.privacy-guard-section .privacy-grid,.multi-device-section .device-grid,.network-diagnosis-section .diagnosis-grid,.account-security-section .security-grid{display:grid;gap:18px}.safety-panel{background:#fff;border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow)}.panel-grid{display:grid;grid-template-columns:1fr;gap:16px}.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:22px;top:22px;width:36px;height:36px;border-radius:14px;background:var(--gradient);display:grid;place-items:center;color:#fff;font-weight:900}.risk-grid{display:grid;grid-template-columns:1fr;gap:16px}.risk-card{border-left:4px solid var(--brand-blue)}.risk-card b{color:#172033}.faq-list{display:grid;gap:14px}.faq-item h3{font-size:18px;margin:0 0 8px}.cta-section{padding:66px 0}.cta-box{background:var(--gradient);border-radius:34px;padding:34px 24px;text-align:center;color:#fff;position:relative;overflow:hidden}.cta-box h2{font-size:clamp(26px,6vw,44px);line-height:1.15;margin:0 0 12px;color:#fff}.cta-box p{margin:0 auto 24px;max-width:720px;color:rgba(255,255,255,.88)}.page-main{padding-bottom:60px}.page-hero{padding:54px 0 26px}.compact-hero{background:linear-gradient(180deg,#f6f9ff 0%,#fff 100%)}.page-hero-inner{width:min(980px,calc(100% - 32px));margin:0 auto}.page-hero h1{font-size:clamp(32px,8vw,56px)}.page-summary{max-width:760px}.content-layout{width:min(1100px,calc(100% - 32px));margin:0 auto;display:grid;gap:20px}.article-card{background:#fff;border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow)}.article-card h2{margin:0 0 12px;font-size:26px}.article-card p{color:var(--muted)}.sidebar{display:grid;gap:16px}.mini-links a{display:block;padding:12px 0;border-bottom:1px solid var(--line);color:var(--brand-blue);font-weight:700}.page-actions{margin-top:24px}.download-flow{display:grid;gap:14px;counter-reset:flow}.flow-item{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px 18px 18px 66px;position:relative}.flow-item::before{counter-increment:flow;content:counter(flow);position:absolute;left:18px;top:18px;width:34px;height:34px;border-radius:12px;background:#eef5ff;color:var(--brand-blue);display:grid;place-items:center;font-weight:900}.faq-page-grid{display:grid;gap:16px}.site-footer{background:#111827;color:#d8dee9;padding:54px 0 0}.footer-grid{display:grid;gap:26px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}.footer-logo{width:40px;height:40px;border-radius:14px;object-fit:cover}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#d8dee9;margin:8px 0}.site-footer p{color:#aeb8c8;margin:0}.footer-bottom{text-align:center;color:#9aa4b2;border-top:1px solid rgba(255,255,255,.09);padding:18px;margin-top:40px}.soft-bg{background:#f3f7fc}.two-col{display:grid;gap:18px}.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.pill-row span{background:#eef5ff;color:#276ed9;border-radius:999px;padding:7px 12px;font-weight:700;font-size:13px}
@media (min-width:700px){.scene-grid{grid-template-columns:repeat(2,1fr)}.bento-grid{grid-template-columns:repeat(2,1fr)}.panel-grid,.risk-grid,.privacy-grid,.device-grid,.diagnosis-grid,.security-grid,.two-col{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.faq-page-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.nav-toggle{display:none}.site-nav{position:static;display:flex!important;flex-direction:row;background:transparent;border:0;box-shadow:none;padding:0;gap:4px;align-items:center}.site-nav a{font-size:14px;padding:9px 10px}.hero-card{padding:54px}.hero-grid{grid-template-columns:1.03fr .97fr;align-items:center}.scene-grid{grid-template-columns:repeat(3,1fr)}.bento-grid{grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(150px,auto)}.bento-card{grid-column:span 2}.bento-card.large{grid-column:span 3;grid-row:span 2}.bento-card.wide{grid-column:span 3}.split-panel{grid-template-columns:1fr 1fr;padding:34px}.split-panel.reverse .image-wrap{order:2}.route-panel{grid-template-columns:1.15fr .85fr;align-items:center}.public-wifi-section .wifi-layout{grid-template-columns:1.05fr .95fr;align-items:center}.privacy-guard-section .privacy-grid,.network-diagnosis-section .diagnosis-grid{grid-template-columns:repeat(3,1fr)}.multi-device-section .device-grid,.account-security-section .security-grid{grid-template-columns:1fr 1fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 310px;align-items:start}.article-card{padding:34px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}.page-hero{padding:72px 0 34px}}
@media (min-width:1120px){.site-nav a{padding:10px 12px}.section{padding:82px 0}}