:root{--bg:#111414;--panel:#1a1e1e;--line:#303636;--text:#f1f3ef;--muted:#a7b0ab;--cyan:#a5f4e3;--orange:#ff8b55;--radius:20px;--width:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 'Segoe UI','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--cyan)}button{font:inherit}img{display:block;max-width:100%;height:auto}button,a,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--orange);outline-offset:5px}::selection{background:var(--cyan);color:var(--bg)}.wrap{width:min(var(--width),calc(100% - 80px));margin:auto}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--cyan);font-weight:600}.muted{color:var(--muted)}.site-header{position:sticky;top:0;z-index:30;background:#111414f2;border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.jisbu-govcn-head{transition:box-shadow .2s}.site-header.scrolled{box-shadow:0 8px 30px #0004}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:86px;gap:24px}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.brand img{width:36px;height:36px}.brand strong{font-size:21px;letter-spacing:-.6px}.brand small{display:block;font-size:9px;letter-spacing:2.5px;line-height:1;color:var(--muted)}.site-nav{display:flex;align-items:center;gap:22px;font-size:13px;color:#bec5c1}.site-nav a[aria-current=page]{color:var(--cyan)}.nav-download{border:1px solid #667c75;padding:7px 13px;border-radius:6px}.menu-toggle{display:none;color:var(--text);background:none;border:1px solid var(--line);border-radius:6px;padding:6px 12px}.skip-link{position:fixed;top:-100px;left:20px;z-index:90;background:var(--cyan);color:var(--bg);padding:10px}.skip-link:focus{top:12px}.hero{padding:58px 0 0}.hero-topline{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}.edition{color:var(--muted);font:11px/1.5 Consolas,monospace;letter-spacing:2px}.hero-grid{display:grid;grid-template-columns:.95fr 1.15fr;gap:44px;align-items:center}.hero-copy h1{font-size:clamp(30px,3.25vw,48px);line-height:1.25;letter-spacing:-2px;margin:20px 0 24px}.hero-copy h1 span{display:block;font-size:.63em;color:var(--muted);letter-spacing:0;margin-top:12px}.hero-copy h2{font-size:clamp(26px,3.1vw,43px);line-height:1.35;font-weight:500;letter-spacing:-1px;margin:22px 0}.hero-copy p{color:var(--muted);max-width:440px;font-size:15px}.action-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;padding:12px 23px;border-radius:6px;background:var(--cyan);color:#111d19;font-size:14px;font-weight:600;border:1px solid var(--cyan);transition:transform .2s,background .2s}.button:hover{background:#c1ffed;color:#111d19;transform:translateY(-2px)}.button.secondary{background:transparent;border-color:#47544e;color:var(--text)}.button.secondary:hover{border-color:var(--cyan)}.hero-media{position:relative;min-width:0}.hero-media>img{width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:28px 28px 8px 28px}.image-label{position:absolute;left:18px;bottom:18px;background:#111414df;border:1px solid #657d714d;border-radius:9px;padding:12px 17px;display:flex;gap:16px;align-items:center;font:11px/1.5 Consolas,monospace;color:var(--cyan)}.status-dot{width:7px;height:7px;background:var(--cyan);border-radius:50%;display:inline-block}.hero-note{font-size:11px;color:var(--muted);margin-top:17px;letter-spacing:.5px}.metric-strip{display:grid;grid-template-columns:1.3fr repeat(3,1fr);border:1px solid var(--line);border-radius:10px;margin:38px 0 0;background:#171b1a}.metric-strip>div{padding:20px 26px;border-left:1px solid var(--line)}.metric-strip>div:first-child{border-left:none}.metric-strip small{display:block;font:10px/1.7 Consolas,monospace;letter-spacing:1px;color:var(--muted)}.metric-strip strong{display:block;font-size:16px;font-weight:500}.metric-strip strong i{font-style:normal;color:var(--cyan);margin-right:8px}.section{padding:88px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-heading h2,.split-copy h2{font-size:clamp(26px,3vw,38px);line-height:1.4;font-weight:500;margin:10px 0 0;letter-spacing:-1px}.section-heading p{margin:0;max-width:380px;color:var(--muted);font-size:14px}.text-link{font-size:13px;color:var(--cyan);white-space:nowrap}.bento{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-template-rows:180px 180px;gap:16px}.bento-card{position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);overflow:hidden;transition:border-color .2s}.bento-card:hover{border-color:#82988b}.bento-card h3{font-size:25px;font-weight:500;line-height:1.3;margin:9px 0}.bento-card p{font-size:13px;color:var(--muted);max-width:250px}.card-arrow{position:absolute;right:22px;top:22px;font-size:22px;color:var(--cyan)}.bento-windows{grid-row:span 2;background:#202726}.bento-windows img{position:absolute;width:90%;height:190px;object-fit:cover;right:0;bottom:0;border-radius:18px 0 0 0;opacity:.85}.bento-android{grid-row:span 2}.bento-android img{width:100%;height:160px;object-fit:cover;border-radius:10px;margin-top:20px}.bento-ios{background:var(--cyan);color:#10211c}.bento-ios p,.bento-ios .eyebrow,.bento-ios .card-arrow{color:#2e5345}.bento-check{background:#24201d}.bento-check .eyebrow,.bento-check .card-arrow{color:var(--orange)}.split{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:center}.split.reverse{grid-template-columns:1fr 1.1fr}.split>figure{margin:0}.split img{width:100%;border-radius:var(--radius);object-fit:cover;aspect-ratio:16/10}.split figcaption{font-size:11px;color:var(--muted);margin-top:12px}.split-copy p{font-size:15px;color:var(--muted)}.device-tags{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0}.device-tags a,.device-tags span{padding:5px 12px;border:1px solid var(--line);border-radius:5px;font-size:12px}.band{background:#191e1c;border-block:1px solid var(--line)}.knowledge-panel{display:grid;grid-template-columns:1fr 1.25fr;gap:64px}.signal-heading h2{font-size:38px;line-height:1.4;font-weight:500;margin:13px 0 22px}.signal-heading p{color:var(--muted);font-size:14px}.signal-mark{width:110px;height:50px;display:flex;gap:7px;align-items:end;margin:30px 0}.signal-mark span{width:12px;background:var(--cyan);border-radius:3px;height:25%}.signal-mark span:nth-child(2){height:45%}.signal-mark span:nth-child(3){height:60%}.signal-mark span:nth-child(4){height:80%}.signal-mark span:nth-child(5){height:100%;background:var(--orange)}.definition-row{display:grid;grid-template-columns:40px 110px 1fr;gap:16px;padding:19px 0;border-bottom:1px solid var(--line)}.definition-row:first-child{border-top:1px solid var(--line)}.definition-row span{color:var(--cyan);font:12px Consolas,monospace;padding-top:6px}.definition-row h3{margin:0;font-size:17px;font-weight:500}.definition-row p{margin:0;color:var(--muted);font-size:13px}.route-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.route-intro h2{font-size:38px;line-height:1.4;font-weight:500;margin:14px 0 22px}.route-intro p{color:var(--muted);font-size:14px}.route-list{list-style:none;margin:0;padding:0;counter-reset:route}.route-list li{display:grid;grid-template-columns:52px 1fr;gap:20px;padding:0 0 28px;position:relative}.route-list li:before{counter-increment:route;content:'0' counter(route);font:24px/1.5 Consolas,monospace;color:var(--cyan)}.route-list li:after{position:absolute;content:'';width:1px;background:var(--line);left:17px;top:42px;bottom:7px}.route-list li:last-child:after{display:none}.route-list h3{margin:0;font-size:18px;font-weight:500}.route-list p{margin:5px 0 0;color:var(--muted);font-size:13px}.trouble-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:65px}.trouble-layout h2{font-size:36px;font-weight:500;margin:12px 0}.trouble-layout p{color:var(--muted);font-size:14px}.issue-list{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.issue-list a{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px}.issue-list a span{color:var(--orange)}.editorial-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:30px}.feature-story{background:var(--panel);border-radius:20px;overflow:hidden}.feature-story img{width:100%;aspect-ratio:16/8;object-fit:cover}.feature-story .story-copy{padding:24px 28px}.feature-story h3{font-size:22px;font-weight:500;margin:8px 0}.feature-story p{font-size:13px;color:var(--muted)}.story-row{padding:17px 0;border-bottom:1px solid var(--line);display:block}.story-row:first-child{padding-top:0}.story-row small{color:var(--cyan);font-size:11px}.story-row h3{font-size:18px;font-weight:500;margin:5px 0}.story-row p{color:var(--muted);font-size:13px;margin:0}.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px}.faq-layout h2{font-size:38px;font-weight:500;margin:12px 0}.faq-layout p{color:var(--muted);font-size:14px}.faq-list details{border-bottom:1px solid var(--line);padding:17px 0}.faq-list summary{cursor:pointer;list-style:none;font-size:15px;display:flex;gap:18px;justify-content:space-between}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';color:var(--cyan);font-size:20px;line-height:1.2}.faq-list details[open] summary:after{content:'−'}.faq-list details p{font-size:14px;margin:13px 0 0;color:var(--muted)}.closing{margin:10px auto 80px;padding:35px 40px;background:var(--cyan);color:#14241d;border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:30px}.closing h2{font-size:27px;font-weight:500;margin:0}.closing p{font-size:14px;margin:8px 0 0;color:#3c594c}.closing .button{background:#14241d;color:var(--cyan);border-color:#14241d;white-space:nowrap}footer{border-top:1px solid var(--line);padding:55px 0 25px;background:#0d1010}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:35px}.footer-brand p{font-size:12px;color:var(--muted);max-width:300px}.footer-grid h2{font-size:13px;font-weight:500;margin:0 0 12px}.footer-grid ul{list-style:none;padding:0;margin:0;font-size:12px;color:var(--muted)}.footer-grid li{padding:3px 0}.footer-links{border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:11px;color:var(--muted)}.footer-links nav{display:flex;gap:10px 18px;flex-wrap:wrap}.footer-links strong{display:block;font-weight:500;margin-bottom:10px}.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 25px;font-size:10px;color:#8e9993;margin-top:35px;border-top:1px solid var(--line);padding-top:20px}.footer-bottom p{margin:0}.registrations{display:flex;gap:18px;flex-wrap:wrap}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap;padding:24px 0}.article-heading{padding:24px 0 42px;max-width:890px}.article-heading h1{font-size:clamp(30px,4vw,48px);font-weight:500;line-height:1.35;margin:16px 0 22px;letter-spacing:-1px}.article-heading>p{font-size:16px;color:var(--muted);max-width:760px}.article-meta{color:var(--muted);font-size:11px;letter-spacing:1px;display:flex;gap:20px;flex-wrap:wrap}.article-cover{margin:0 0 45px}.article-cover img{width:100%;height:390px;object-fit:cover;border-radius:22px}.article-cover figcaption{font-size:11px;color:var(--muted);margin-top:10px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:70px;padding-bottom:75px}.article-body{max-width:850px;min-width:0}.article-body section{margin-bottom:34px;scroll-margin-top:105px}.article-body h2{font-size:25px;line-height:1.5;font-weight:500;margin:0 0 18px}.article-body h3{font-size:18px;font-weight:500;color:var(--cyan);margin:22px 0 10px}.article-body p,.article-body li{color:#bdc6c0;font-size:15px;line-height:2.05}.article-body p{margin:0 0 15px}.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}.article-body ul,.article-body ol{padding-left:24px}.notice{padding:22px 26px;border-left:3px solid var(--orange);background:#24201c;border-radius:0 9px 9px 0;margin:25px 0}.notice strong{font-size:14px;color:var(--orange)}.notice p{margin:7px 0 0;font-size:14px}.article-aside{align-self:start;position:sticky;top:115px;border:1px solid var(--line);border-radius:14px;padding:24px;font-size:13px}.article-aside h2{font-size:14px;font-weight:500;margin:0 0 15px}.article-aside a{display:block;color:var(--muted);padding:7px 0}.article-aside a:hover{color:var(--cyan)}.article-aside hr{border:0;border-top:1px solid var(--line);margin:20px 0}.related{border-top:1px solid var(--line);padding-top:25px;margin-top:35px}.related h2{font-size:23px}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.related-grid a{border:1px solid var(--line);border-radius:10px;padding:18px;text-decoration:none;font-size:14px}.related-grid small{display:block;color:var(--muted);margin-top:8px}.platform-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:25px 0}.platform-item{border:1px solid var(--line);border-radius:12px;padding:23px}.platform-item h3{margin:0 0 8px}.platform-item p{font-size:13px}.platform-item a{font-size:13px}.readiness{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.readiness label{display:flex;align-items:start;gap:10px;padding:12px 15px;background:var(--panel);border-radius:8px;font-size:13px;color:var(--muted);cursor:pointer}.readiness input{accent-color:var(--cyan);width:17px;height:17px;margin-top:3px;flex-shrink:0}.check-result{font-size:13px;color:var(--cyan);min-height:24px}.news-index{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0}.news-index a{padding:22px;border:1px solid var(--line);border-radius:12px;text-decoration:none}.news-index h3{margin:0 0 8px}.news-index p{font-size:13px;margin:0}.jisbu-govcn-core7{isolation:isolate}.jisbu-govcn-grid{margin-top:12px}.jisbu-govcn-device{box-shadow:0 20px 50px #0003}.jisbu-govcn-meter{font-variant-numeric:tabular-nums}.jisbu-govcn-route9{border-bottom:1px solid var(--line)}.jisbu-govcn-guide{border-top:2px solid #a5f4e324;padding-top:28px}.jisbu-govcn-pulse{border-left:3px solid var(--cyan);padding-left:24px}.jisbu-govcn-footer{letter-spacing:.1px}.jisbu-govcn-card7{box-shadow:0 6px 30px #0002}
@media(min-width:1600px){.hero-copy h1{font-size:48px}}@media(max-width:1180px){.site-nav{gap:13px;font-size:12px}.header-inner{gap:15px}.wrap{width:calc(100% - 56px)}.hero-grid{gap:30px}.brand strong{font-size:19px}.split{gap:40px}.article-layout{gap:40px}.route-grid{gap:60px}}@media(max-width:960px){.menu-toggle{display:block}.site-nav{display:none;position:absolute;top:86px;left:0;right:0;background:#171c19;border-bottom:1px solid var(--line);padding:25px 28px;box-shadow:0 15px 30px #0005;grid-template-columns:1fr 1fr;gap:8px}.site-nav.is-open{display:grid}.site-nav a{padding:12px 16px;font-size:14px}.hero-grid{grid-template-columns:1fr 1fr;gap:24px}.hero-copy h1{font-size:32px}.hero-copy h2{font-size:28px}.metric-strip>div{padding:17px}.bento{grid-template-columns:1.15fr 1fr;grid-template-rows:180px 180px 160px}.bento-windows{grid-row:span 2}.bento-android{grid-row:span 2}.bento-ios,.bento-check{grid-row:3}.split,.split.reverse{gap:32px}.knowledge-panel{gap:35px}.definition-row{grid-template-columns:25px 75px 1fr;gap:10px}.signal-heading h2{font-size:32px}.route-grid{gap:40px}.trouble-layout{gap:35px}.faq-layout{gap:40px}.article-layout{grid-template-columns:minmax(0,1fr) 210px;gap:28px}.article-aside{padding:18px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:20px}.closing{padding:30px}.article-cover img{height:330px}}@media(max-width:700px){.wrap{width:calc(100% - 36px)}.header-inner{min-height:72px}.site-nav{top:72px}.brand strong{font-size:19px}.brand img{width:32px;height:32px}.hero{padding-top:30px}.hero-topline{margin-bottom:20px}.edition{font-size:9px;letter-spacing:1px}.hero-grid{grid-template-columns:1fr;gap:30px}.hero-copy h1{font-size:36px;letter-spacing:-1px;margin:18px 0}.hero-copy h2{font-size:30px;margin-top:20px}.hero-copy p{max-width:none}.hero-media>img{aspect-ratio:16/11;border-radius:20px}.metric-strip{grid-template-columns:1fr 1fr;margin-top:25px}.metric-strip>div{padding:15px 18px}.metric-strip>div:nth-child(3){border-left:none;border-top:1px solid var(--line)}.metric-strip>div:nth-child(4){border-top:1px solid var(--line)}.metric-strip strong{font-size:14px}.section{padding:58px 0}.section-heading{align-items:start;flex-direction:column;gap:15px;margin-bottom:23px}.section-heading h2{font-size:29px}.bento{grid-template-columns:1fr 1fr;grid-template-rows:310px 185px 175px;gap:12px}.bento-card{padding:20px}.bento-card h3{font-size:22px}.bento-windows{grid-column:span 2;grid-row:1}.bento-windows img{width:65%;height:170px}.bento-android{grid-row:2;grid-column:1}.bento-android img{display:none}.bento-ios{grid-row:2;grid-column:2}.bento-check{grid-column:span 2;grid-row:3}.split,.split.reverse,.knowledge-panel,.route-grid,.trouble-layout,.editorial-grid,.faq-layout{grid-template-columns:1fr;gap:30px}.split.reverse .split-copy{order:2}.split-copy h2,.route-intro h2,.faq-layout h2,.trouble-layout h2{font-size:30px}.signal-heading h2{font-size:30px}.signal-mark{display:none}.definition-row{grid-template-columns:28px 78px 1fr;gap:10px}.definition-row h3{font-size:15px}.definition-row p{font-size:12px}.route-list li{padding-bottom:25px}.issue-list{gap:0 20px}.issue-list a{font-size:13px}.closing{margin-bottom:55px;padding:27px;flex-direction:column;align-items:start}.closing h2{font-size:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:span 2}.footer-brand p{max-width:100%}.footer-bottom{font-size:10px}.article-heading{padding:15px 0 26px}.article-heading h1{font-size:32px}.article-cover img{height:auto;aspect-ratio:16/10}.article-layout{display:flex;flex-direction:column;gap:25px}.article-aside{position:static;order:-1;width:100%}.article-aside nav{display:flex;flex-wrap:wrap;gap:5px 15px}.article-aside hr,.article-aside .aside-help{display:none}.article-body h2{font-size:23px}.article-body p,.article-body li{font-size:14px}.related-grid,.platform-grid,.news-index{grid-template-columns:1fr}.readiness{grid-template-columns:1fr}.breadcrumb{font-size:11px;gap:7px}.image-label{font-size:10px}.hero-note{font-size:10px}.action-row{gap:10px}.button{padding:12px 18px;gap:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

.hero-media{margin:0}

@media(max-width:700px){.hero-topline{gap:16px}.hero-topline .eyebrow{white-space:nowrap}.hero-topline .edition{max-width:150px;text-align:right;font-size:8px;letter-spacing:.5px}}
