:root{--bg:#0b0e12;--panel:#13191f;--line:#283139;--ink:#f2f4f5;--muted:#9da9b2;--yellow:#e6ff58;--cyan:#70dce5;--max:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{color:var(--yellow)}button{font:inherit}img{display:block;max-width:100%;height:auto}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--yellow);outline-offset:5px}.wrap{width:min(var(--max),calc(100% - 80px));margin:auto}.skip{position:fixed;top:8px;left:8px;transform:translateY(-150%);z-index:100;background:var(--yellow);color:var(--bg);padding:8px}.skip:focus{transform:none}.site-head{position:sticky;top:0;z-index:30;background:rgba(11,14,18,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.head-inner{display:flex;align-items:center;gap:28px;min-height:82px}.brand{display:flex;align-items:center;gap:10px;font-weight:750;letter-spacing:-.7px;font-size:23px;white-space:nowrap}.brand img{width:38px;height:38px}.brand small{font-size:10px;color:var(--muted);letter-spacing:2px;display:block;line-height:1}.site-nav{display:flex;gap:22px;margin-left:auto;font-size:12px;white-space:nowrap}.site-nav [aria-current=page]{color:var(--yellow)}.menu-toggle{display:none;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:8px 14px}.speedcath-govcn-header.scrolled{box-shadow:0 8px 30px #0006}.eyebrow{font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--cyan);display:flex;align-items:center;gap:12px}.eyebrow:before{content:"";width:24px;height:2px;background:var(--yellow)}.hero{padding-top:65px}.hero-grid{display:grid;grid-template-columns:55% 45%;align-items:center;min-height:500px}.hero-copy{padding-right:45px;padding-bottom:40px}.hero h1{font-size:clamp(34px,4.1vw,58px);line-height:1.16;letter-spacing:-2.5px;margin:23px 0}.hero h1 span{color:var(--yellow);display:block;font-size:.63em;letter-spacing:-1px;margin-top:15px}.hero-subtitle{font-size:22px;margin:0 0 18px}.lede{color:var(--muted);font-size:15px;max-width:530px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;gap:30px;align-items:center;justify-content:space-between;padding:13px 22px;border:1px solid var(--line);font-size:13px;background:var(--panel);min-height:48px}.button.primary{background:var(--yellow);color:#10150b;border-color:var(--yellow);font-weight:700}.button:hover{transform:translateY(-2px)}.hero-visual{position:relative;border:1px solid var(--line);margin:0;align-self:stretch;min-width:0}.hero-visual>img{height:100%;width:100%;object-fit:cover}.hero-visual figcaption{position:absolute;bottom:18px;left:18px;right:18px;padding:13px 16px;background:#0b0e12d9;border:1px solid #ffffff26;backdrop-filter:blur(12px);font-size:11px;display:flex;justify-content:space-between;gap:8px}.hero-visual figcaption span{color:var(--cyan)}.speedcath-govcn-meter{display:grid;grid-template-columns:1.3fr repeat(3,1fr);border:1px solid var(--line);margin-top:24px;background:var(--panel)}.data-cell{padding:23px 28px;border-right:1px solid var(--line)}.data-cell:last-child{border:0}.data-cell strong{font-size:19px;display:block}.data-cell small{font-size:12px;color:var(--muted)}.data-cell .unit{font-size:12px;color:var(--cyan)}section.block{padding:85px 0}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}.section-head h2,h2{font-size:clamp(25px,3vw,37px);line-height:1.35;letter-spacing:-1px;margin:12px 0 0}.section-head p{color:var(--muted);max-width:360px;font-size:14px;margin:0}.section-number{font-size:12px;color:var(--muted);font-family:monospace}.overview{display:grid;grid-template-columns:1.2fr 1fr;gap:80px}.overview p{color:var(--muted)}.signal-panel{border-left:1px solid var(--line);padding:10px 0 10px 35px}.signal-row{display:flex;justify-content:space-between;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}.signal-row span{color:var(--cyan)}.bento{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px}.device-card{border:1px solid var(--line);background:var(--panel);padding:27px;min-width:0;transition:border-color .2s}.device-card:hover{border-color:var(--cyan)}.device-card h3{font-size:25px;margin:16px 0 5px}.device-card p{font-size:13px;color:var(--muted)}.device-card a{font-size:12px;display:inline-block;margin-top:10px}.device-card.wide{grid-row:span 2;padding:0;overflow:hidden}.device-card.wide img{width:100%;height:230px;object-fit:cover}.device-card.wide .device-copy{padding:25px}.device-card.tall{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(155deg,#183039,#13191f)}.device-mark{font-size:12px;color:var(--cyan);font-family:monospace}.speedcath-govcn-device{border-top:3px solid var(--yellow)}.knowledge{display:grid;grid-template-columns:1fr 2fr;gap:60px}.term-list{border-top:1px solid var(--line)}.term{display:grid;grid-template-columns:100px 1fr 35px;gap:15px;align-items:center;border-bottom:1px solid var(--line);padding:21px 0}.term strong{font-size:20px}.term p{color:var(--muted);font-size:13px;margin:0}.term span{color:var(--cyan)}.scene-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px}.scene{margin:0;min-width:0}.scene img{width:100%;height:330px;object-fit:cover}.scene.small img{height:260px}.scene.small{padding-top:70px}.scene figcaption{margin-top:19px;display:flex;gap:20px;align-items:start}.scene figcaption strong{white-space:nowrap}.scene figcaption span{color:var(--muted);font-size:13px}.speedcath-govcn-route{background:var(--panel);border-block:1px solid var(--line)}.route-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:80px}.timeline{list-style:none;padding:0;margin:0;counter-reset:route}.timeline li{display:grid;grid-template-columns:40px 1fr;gap:20px;padding:0 0 25px;position:relative}.timeline li:before{counter-increment:route;content:"0" counter(route);color:var(--yellow);font-size:14px;font-family:monospace;border-right:1px solid var(--line)}.timeline h3{margin:0;font-size:17px}.timeline p{color:var(--muted);font-size:13px;margin:5px 0}.compare{display:grid;grid-template-columns:1fr 1fr;gap:25px}.compare-panel{padding:35px;border:1px solid var(--line)}.compare-panel h3{font-size:25px;margin:8px 0}.compare-panel p{color:var(--muted);font-size:14px}.compare-panel ul{padding-left:20px;color:var(--muted);font-size:14px}.speedcath-govcn-pulse{border-left:3px solid var(--cyan)}.troubleshoot{display:grid;grid-template-columns:.8fr 1.5fr;gap:80px}.issue-list{display:grid;grid-template-columns:1fr 1fr;gap:0 35px}.issue{border-top:1px solid var(--line);padding:18px 0}.issue h3{font-size:15px;margin:0}.issue p{color:var(--muted);font-size:13px;margin-bottom:0}.article-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}.article-link{display:grid;grid-template-columns:35px 1fr 25px;gap:15px;border-top:1px solid var(--line);padding:26px 0}.article-link small{color:var(--muted);font-family:monospace}.article-link h3{font-size:17px;margin:0}.article-link p{font-size:13px;color:var(--muted);margin:7px 0 0}.article-link>span{color:var(--yellow)}.speedcath-govcn-guide{background:linear-gradient(120deg,#141c21,#0b0e12)}.environment{display:grid;grid-template-columns:1.5fr 1fr;gap:50px;align-items:center}.environment img{width:100%;height:400px;object-fit:cover}.environment p{color:var(--muted);font-size:14px}.faq-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:80px}.faq-item{border-top:1px solid var(--line);padding:18px 0}.faq-item summary{cursor:pointer;font-size:15px;padding-right:18px}.faq-item p{color:var(--muted);font-size:14px;margin-bottom:0}.site-footer{border-top:1px solid var(--line);padding:55px 0 25px;background:#080b0e}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:40px}.footer-grid h3{font-size:12px;color:var(--muted);margin:0 0 16px}.footer-grid a:not(.brand){display:block;font-size:12px;margin:8px 0}.footer-brand p{font-size:12px;color:var(--muted);max-width:300px}.friend-links{margin-top:30px;border-top:1px solid var(--line);padding-top:20px}.friend-links h3{font-size:12px;color:var(--muted)}.friend-links div{display:flex;gap:10px 22px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.legal{border-top:1px solid var(--line);padding-top:22px;margin-top:30px;font-size:11px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 22px}.legal p{width:100%;margin:4px 0}.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--muted);padding-top:30px}.breadcrumb span:last-child{color:var(--ink)}.article-hero{padding:45px 0 48px;display:grid;grid-template-columns:1.15fr 1fr;gap:60px;align-items:center}.article-hero h1{font-size:clamp(29px,3.6vw,48px);line-height:1.35;letter-spacing:-1.5px;margin:18px 0}.article-hero p{color:var(--muted);font-size:14px}.article-hero img{width:100%;height:290px;object-fit:cover;border:1px solid var(--line)}.article-meta{font-size:11px;color:var(--cyan);margin-top:20px}.article-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:70px;padding:25px 0 80px}.toc{position:sticky;top:115px;align-self:start;border-top:2px solid var(--yellow);padding-top:16px}.toc h2{font-size:13px;letter-spacing:1px;margin:0 0 15px}.toc a{display:block;font-size:12px;color:var(--muted);padding:8px 0}.toc a:hover{color:var(--yellow)}.article-body{max-width:850px;min-width:0}.article-body section{padding:0 0 28px}.article-body h2{font-size:26px;margin:0 0 20px}.article-body h3{font-size:18px}.article-body p,.article-body li{font-size:15px;color:#bcc6ce}.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}.article-body ul,.article-body ol{padding-left:24px}.note{background:var(--panel);border-left:3px solid var(--yellow);padding:20px 25px;margin:20px 0;font-size:14px;color:#bcc6ce}.note strong{display:block;color:var(--ink);margin-bottom:5px}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}td,th{padding:15px;text-align:left;border:1px solid var(--line)}th{background:var(--panel)}td{color:var(--muted)}.related{border-top:1px solid var(--line);padding:45px 0 60px}.related h2{font-size:24px;margin-bottom:25px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.related-grid a{background:var(--panel);padding:24px;border:1px solid var(--line);font-size:14px}.related-grid span{display:block;color:var(--cyan);font-size:11px;margin-bottom:12px}.platform-links{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-top:25px}.platform-links a{display:block;padding:20px;background:var(--panel);border:1px solid var(--line);text-decoration:none}.platform-links small{display:block;color:var(--muted)}.speedcath-govcn-panel{border-top:1px solid var(--cyan)}.speedcath-govcn-footer{background-image:linear-gradient(160deg,#10181d55,transparent)}@media(min-width:1500px){.hero h1{font-size:62px}}@media(max-width:1150px){.wrap{width:calc(100% - 48px)}.site-nav{gap:13px;font-size:11px}.head-inner{gap:14px}.hero-grid{grid-template-columns:53% 47%}.hero-copy{padding-right:25px}.hero h1{font-size:43px}.hero-subtitle{font-size:19px}.overview,.route-layout,.faq-layout,.troubleshoot{gap:40px}.article-layout{gap:40px;grid-template-columns:190px minmax(0,1fr)}}@media(max-width:900px){.site-nav{display:none;position:absolute;top:100%;left:0;right:0;margin:0;background:rgba(12,18,24,.98);border-bottom:1px solid var(--line);padding:20px 24px;grid-template-columns:1fr 1fr;max-height:calc(100dvh - 80px);overflow:auto;white-space:normal}.site-nav.open{display:grid}.site-nav a{padding:12px;font-size:14px}.menu-toggle{display:block;margin-left:auto}.hero{padding-top:35px}.hero-grid{min-height:400px}.hero h1{font-size:34px}.hero-subtitle{font-size:17px}.hero-visual{min-height:360px}.speedcath-govcn-meter{grid-template-columns:repeat(2,1fr)}.data-cell:nth-child(2){border-right:0}.data-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}.bento{grid-template-columns:1fr 1fr}.device-card.tall{grid-row:auto}.device-card.wide{grid-row:span 2}.knowledge,.troubleshoot{grid-template-columns:1fr;gap:25px}.section-head{align-items:start}.footer-grid{grid-template-columns:1.6fr 1fr;gap:30px}.article-hero{gap:30px;grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr;gap:35px}.toc{position:static;display:flex;gap:12px;flex-wrap:wrap}.toc h2{width:100%}.toc a{padding:5px 10px;border:1px solid var(--line)}.environment{gap:30px}.environment img{height:320px}}@media(max-width:600px){.wrap{width:calc(100% - 36px)}.head-inner{min-height:70px}.brand{font-size:21px}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:38px;letter-spacing:-1.7px}.hero-copy{padding:0 0 32px}.hero-subtitle{font-size:19px}.hero-visual{min-height:0;height:300px}.hero-visual figcaption{font-size:10px}.hero{padding-top:32px}.data-cell{padding:17px}.data-cell strong{font-size:16px}.data-cell small{font-size:11px}section.block{padding:55px 0}.section-head{display:block}.section-head p{margin-top:18px}.overview,.scene-grid,.route-layout,.compare,.environment,.faq-layout{grid-template-columns:1fr;gap:30px}.signal-panel{padding-left:20px}.bento{gap:12px}.device-card{padding:19px}.device-card h3{font-size:21px}.device-card.wide{grid-column:span 2;grid-row:auto}.device-card.wide img{height:200px}.device-card.tall{grid-column:span 2}.device-card.wide .device-copy{padding:20px}.term{grid-template-columns:73px 1fr 20px;gap:12px}.term strong{font-size:18px}.scene img,.scene.small img{height:240px}.scene.small{padding-top:0}.scene figcaption{gap:15px}.compare-panel{padding:25px}.issue-list,.article-list{grid-template-columns:1fr}.article-link{padding:22px 0}.environment img{height:240px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-brand{grid-column:span 2}.legal{font-size:10px}.article-hero{grid-template-columns:1fr;padding:30px 0}.article-hero h1{font-size:32px}.article-hero img{height:230px}.article-body p,.article-body li{font-size:14px}.article-body h2{font-size:23px}.related-grid{grid-template-columns:1fr}.related-grid a{padding:20px}.note{padding:18px}.platform-links{grid-template-columns:1fr}.breadcrumb{font-size:11px}.article-layout{padding-bottom:35px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.friend-links{display:flex;gap:10px 22px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.friend-links>span{width:100%;font-size:12px}.device-card.tall img{height:170px;width:100%;object-fit:cover;margin-top:18px}.hero-subtitle{color:var(--yellow)}.hero-copy h1{white-space:normal;overflow-wrap:anywhere}.related-grid h3{font-size:18px}.related-grid p{font-size:12px;color:var(--muted)}.related-grid b{font-size:11px;color:var(--cyan);font-weight:500}@media(max-width:360px){.hero h1{font-size:32px}.button{gap:18px}.term strong{font-size:16px}}.article-body .article-link{grid-template-columns:38px minmax(0,1fr) 22px;text-decoration:none}.article-body .article-link small{font-size:10px;overflow-wrap:anywhere}.article-body .article-link h3{font-size:16px}.article-body .article-link p{font-size:12px}.article-body .article-list{gap:0 25px}