:root{
    --brand-gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);
    --blue:#2980FE;
    --blue-dark:#1768E8;
    --text:#1f2937;
    --muted:#667085;
    --line:#e6eaf2;
    --soft:#f5f7fb;
    --soft-blue:#eef5ff;
    --white:#fff;
    --radius:28px;
    --shadow:0 18px 50px rgba(31,41,55,.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:50;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,234,242,.8)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.site-logo{display:flex;align-items:center;gap:10px;font-weight:800;color:#172033;white-space:nowrap}
.site-logo img{width:38px;height:38px;border-radius:12px;object-fit:cover}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{padding:10px 12px;border-radius:999px;color:#4b5563;font-size:15px}
.main-nav a:hover,.main-nav a.active{background:#eef5ff;color:var(--blue)}
.nav-toggle{display:none}.mobile-menu{display:none;flex-direction:column;gap:5px;cursor:pointer}.mobile-menu span{width:24px;height:2px;background:#1f2937;border-radius:999px}
.network-manager-hero{padding:34px 0 48px;background:#fff}
.hero-grid{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;padding:32px;border-radius:36px;background:var(--brand-gradient);color:#fff;position:relative;overflow:hidden}
.hero-grid:after{content:"";position:absolute;inset:auto -80px -160px auto;width:360px;height:360px;background:rgba(255,255,255,.18);border-radius:50%;filter:blur(10px)}
.hero-copy,.hero-visual{position:relative;z-index:1}.eyebrow,.page-badge{display:inline-flex;align-items:center;width:max-content;padding:6px 12px;border-radius:999px;background:#eef5ff;color:var(--blue);font-weight:700;font-size:14px}.hero-copy .eyebrow{background:rgba(255,255,255,.18);color:#fff}
h1,h2,h3,p{margin-top:0}h1{font-size:clamp(34px,7vw,64px);line-height:1.08;margin-bottom:18px;letter-spacing:-.04em}h2{font-size:clamp(26px,4vw,42px);line-height:1.18;margin-bottom:14px;letter-spacing:-.03em}h3{font-size:20px;margin-bottom:8px}.hero-copy p{font-size:17px;color:rgba(255,255,255,.9);max-width:640px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border-radius:999px;background:var(--blue);color:#fff!important;font-weight:800;box-shadow:0 12px 26px rgba(41,128,254,.28);transition:.2s ease}.download-btn:hover{background:var(--blue-dark);transform:translateY(-1px)}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.hero-tags span{padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);font-size:14px}.hero-visual{min-height:320px;display:flex;align-items:center;justify-content:center}.hero-visual img{width:min(360px,82%);filter:drop-shadow(0 30px 45px rgba(23,32,51,.25))}.float-card{position:absolute;padding:10px 14px;border-radius:16px;background:rgba(255,255,255,.92);color:#172033;box-shadow:var(--shadow);font-weight:800;font-size:14px}.float-card.top{top:16px}.float-card.right{right:0;top:42%}.float-card.bottom{bottom:18px}.float-card.left{left:0;top:46%}
.section{padding:58px 0}.soft-section{background:var(--soft)}.section-head{max-width:780px;margin-bottom:24px}.section-head p{color:var(--muted)}.scene-grid{display:grid;grid-template-columns:1fr;gap:18px}.scene-card,.bento-card,.info-panel,.guide-main,.guide-aside,.wifi-panel,.split-card,.account-panel,.cta-card,.faq-page details,.faq-list details,.risk-grid article,.step-grid article,.diagnosis-grid article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.scene-card{padding:24px}.scene-card span,.bento-card span{color:var(--blue);font-weight:800}.scene-card p,.bento-card p,.guide-main p,.guide-aside p,.info-panel p,.info-panel span{color:var(--muted)}.scene-card a,.bento-card a,.text-link,.related-links a,.step-grid a,.risk-grid a{color:var(--blue);font-weight:800}.bento-grid{display:grid;grid-template-columns:1fr;gap:18px}.bento-card{padding:24px;min-height:180px;display:flex;flex-direction:column;justify-content:space-between}.split-card{padding:24px;display:grid;grid-template-columns:1fr;gap:24px;align-items:center}.split-card img{border-radius:24px;background:#f4f7ff;margin:auto}.check-list{padding:0;margin:18px 0;list-style:none}.check-list li{position:relative;padding-left:26px;margin:8px 0;color:#475467}.check-list li:before{content:"";position:absolute;left:0;top:.65em;width:9px;height:9px;border-radius:50%;background:var(--blue)}.wifi-panel{padding:24px}.wifi-grid{display:grid;grid-template-columns:1fr;gap:16px;align-items:center}.wifi-grid article,.mini-card,.guide-cards article{padding:18px;border-radius:22px;background:#f8fafc;border:1px solid var(--line)}.wifi-grid img{border-radius:24px}.privacy-wrap{display:grid;grid-template-columns:1fr;gap:18px;align-items:center}.privacy-wrap img{border-radius:24px;margin:auto}.account-panel{padding:24px;display:grid;grid-template-columns:1fr;gap:18px;align-items:center}.account-panel img{border-radius:24px;margin:auto}.diagnosis-grid,.step-grid,.risk-grid{display:grid;grid-template-columns:1fr;gap:16px}.diagnosis-grid article,.step-grid article,.risk-grid article{padding:20px}.diagnosis-grid strong,.step-grid strong{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:14px;background:#eef5ff;color:var(--blue);margin-bottom:12px}.risk-grid article{border-left:4px solid var(--blue)}.risk-grid b{display:block;color:#344054;margin:10px 0}.faq-list,.faq-page{display:grid;gap:14px}.faq-list details,.faq-page details{padding:18px 20px}.faq-list summary,.faq-page summary{cursor:pointer;font-weight:800}.faq-list p,.faq-page p{color:var(--muted);margin:10px 0 0}.cta-section{padding-bottom:72px}.cta-card{padding:34px;text-align:center;background:var(--brand-gradient);color:#fff}.cta-card .eyebrow{background:rgba(255,255,255,.18);color:#fff;margin:auto}.cta-card p{color:rgba(255,255,255,.9)}.page-hero{padding:54px 0 30px;background:linear-gradient(180deg,#f4f7ff 0%,#fff 100%)}.simple-hero h1{max-width:840px}.simple-hero p{max-width:760px;color:var(--muted);font-size:18px}.content-layout,.guide-layout,.two-column{display:grid;grid-template-columns:1fr;gap:22px}.content-main,.side-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.content-main p{color:var(--muted)}.content-main .download-btn,.faq-page .download-btn{margin-top:18px}.side-panel{align-self:start}.side-panel a{color:var(--blue);font-weight:800}.number-list{padding:0;margin:0;list-style:none;counter-reset:item}.number-list li{counter-increment:item;display:grid;grid-template-columns:42px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.number-list li:before{content:counter(item,decimal-leading-zero);display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:14px;background:#eef5ff;color:var(--blue);font-weight:900}.number-list strong,.number-list span{display:block}.guide-main,.guide-aside{padding:24px}.guide-main .download-btn{margin-top:16px}.guide-cards{display:grid;gap:12px}.related-links{display:grid;gap:10px}.related-links a{padding:12px 14px;border-radius:16px;background:#eef5ff}.site-footer{padding:44px 0 20px;background:#111827;color:#d1d5db}.footer-grid{display:grid;grid-template-columns:1fr;gap:24px}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}.footer-brand img{width:36px;height:36px;border-radius:10px}.site-footer h3{color:#fff}.site-footer a{display:block;color:#d1d5db;margin:7px 0}.site-footer p{color:#aab2c0}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#9ca3af;font-size:14px}
@media (max-width:820px){.mobile-menu{display:flex}.main-nav{position:absolute;left:16px;right:16px;top:72px;display:none;flex-direction:column;align-items:stretch;padding:14px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.main-nav a{padding:12px 14px}.nav-toggle:checked~.main-nav{display:flex}.header-inner{position:relative}.hero-grid{padding:26px}.float-card.right{right:4px}.float-card.left{left:4px}.section{padding:44px 0}}
@media (min-width:720px){.scene-grid{grid-template-columns:repeat(2,1fr)}.bento-grid{grid-template-columns:repeat(2,1fr)}.wifi-grid{grid-template-columns:repeat(2,1fr)}.privacy-wrap{grid-template-columns:1.2fr .8fr}.diagnosis-grid,.step-grid,.risk-grid{grid-template-columns:repeat(2,1fr)}.two-column{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
@media (min-width:960px){.hero-grid{grid-template-columns:1fr .86fr;padding:52px}.hero-copy p{font-size:18px}.scene-grid{grid-template-columns:repeat(3,1fr)}.bento-grid{grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(176px,auto)}.bento-card.large{grid-column:span 2}.bento-card.tall{grid-row:span 2}.split-card{grid-template-columns:1fr .9fr;padding:34px}.split-card.reverse{grid-template-columns:.9fr 1fr}.split-card.reverse>div{order:2}.split-card.reverse>img{order:1}.wifi-panel{padding:34px}.wifi-grid{grid-template-columns:1fr 1fr 1fr 1.15fr}.privacy-wrap{grid-template-columns:1.2fr .8fr repeat(3,.7fr)}.account-panel{grid-template-columns:1fr .7fr .9fr;padding:34px}.diagnosis-grid{grid-template-columns:repeat(4,1fr)}.step-grid{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.guide-layout{grid-template-columns:minmax(0,1fr) 360px}.content-main,.side-panel,.guide-main,.guide-aside{padding:34px}}
@media (min-width:1180px){.risk-grid{grid-template-columns:repeat(4,1fr)}}