:root{--bg:#F3F7FB;--bg-deep:#E6EFF7;--surface:#FFFFFF;--surface-2:#DCEBF5;--ink:#10263A;--text:#263B4C;--muted:#60788C;--muted-2:#8094A5;--blue:#3B9FE0;--blue-light:#67B9EC;--steel:#1E6FB8;--ice:#B8DDF3;--mint:#39A69C;--border:rgba(30,111,184,.16);--border-strong:rgba(59,159,224,.38);--shadow:0 14px 36px rgba(16,38,58,.08);--radius:14px;--max:1240px;--top:72px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}body.modal-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:var(--steel);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}a,button,input{outline:none}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(59,159,224,.35);outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px}.skip-link:focus{top:10px}
.topbar{position:sticky;top:0;z-index:80;height:var(--top);background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:0 6px 20px rgba(16,38,58,.05)}.topbar-inner{width:min(var(--max),calc(100% - 32px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:14px;color:var(--ink);min-width:0}.brand:hover{text-decoration:none}.brand-logo{height:34px;width:auto;max-width:180px;object-fit:contain}.brand-wordmark{font-weight:800;font-size:21px;letter-spacing:.02em}.brand-status{font-size:14px;color:var(--muted);white-space:nowrap}.top-actions{display:flex;align-items:center;gap:8px}.icon-button,.menu-button,.app-link{min-height:44px;border-radius:10px;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;padding:0 16px;background:#fff;color:var(--ink);font-weight:700}.menu-button{background:linear-gradient(135deg,var(--blue-light),var(--blue) 52%,var(--steel));color:#fff;border-color:transparent}.app-link:hover,.icon-button:hover{border-color:var(--border-strong);text-decoration:none}
.site-main{padding:34px 0 80px}.layout-shell{width:min(var(--max),calc(100% - 32px));margin:auto;display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px}.content-column{min-width:0}.side-rail{position:sticky;top:calc(var(--top) + 22px);align-self:start;max-height:calc(100vh - var(--top) - 44px);overflow:visible}.rail-group{margin:0 0 20px}.rail-group h2{font-size:13px;letter-spacing:.08em;color:var(--muted);margin:0 0 8px;text-transform:uppercase}.rail-link{display:block;padding:9px 10px 9px 12px;border-left:3px solid transparent;border-radius:0 10px 10px 0;color:var(--text);margin:3px 0}.rail-link:hover{text-decoration:none;background:rgba(255,255,255,.65)}.rail-link strong,.rail-link span{display:block}.rail-link strong{font-size:15px}.rail-link span{font-size:12px;line-height:1.55;color:var(--muted);margin-top:2px}.rail-link.is-current{border-left-color:var(--steel);background:#EAF4FB;color:var(--ink)}.rail-link.is-current strong{font-weight:800}.rail-all{width:100%;min-height:44px;border:1px solid var(--border-strong);background:#fff;color:var(--steel);border-radius:10px;font-weight:800}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:14px;color:var(--muted);margin:0 0 18px}.breadcrumbs a{color:var(--muted)}.page-hero{background:linear-gradient(145deg,#fff 0%,#EFF7FC 100%);border:1px solid var(--border);border-radius:16px;padding:30px;box-shadow:var(--shadow);margin-bottom:28px}.eyebrow{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);font-weight:800;margin:0 0 8px}.page-hero h1,.home-title{font-size:clamp(30px,4vw,38px);line-height:1.24;color:var(--ink);margin:0 0 16px}.lead{font-size:17px;line-height:1.9;color:var(--text);margin:0;max-width:820px}.section{margin:34px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section h2,.section-head h2{font-size:clamp(22px,3vw,28px);line-height:1.35;color:var(--ink);margin:0}.section-head p{margin:0;color:var(--muted);font-size:14px}.card,.article-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.article-card{padding:24px}.article-card h3,.card h3{color:var(--ink);margin-top:0}.article-card p:last-child{margin-bottom:0}.muted{color:var(--muted)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag{display:inline-flex;align-items:center;min-height:32px;padding:4px 10px;border-radius:8px;background:#EDF6FB;color:var(--steel);font-size:13px;font-weight:700}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.btn-primary,.btn-secondary{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-weight:800}.btn-primary{background:linear-gradient(135deg,var(--blue-light),var(--blue) 52%,var(--steel));color:#fff}.btn-primary:hover{color:#fff;text-decoration:none}.btn-secondary{background:#fff;color:var(--steel);border:1px solid var(--border-strong)}.btn-secondary:hover{text-decoration:none;background:#F7FBFE}.media-frame{display:flex;align-items:center;justify-content:center;width:100%;overflow:hidden;border-radius:14px;border:1px solid var(--border);background:linear-gradient(145deg,#EDF6FB,#DCEBF5);min-height:220px}.media-frame img{width:100%;height:100%;max-height:360px;object-fit:contain;object-position:center}.media-fallback{min-height:220px;color:var(--steel);font-weight:800;text-align:center;padding:28px}.media-frame.banner{max-height:420px;min-height:260px}.media-frame.banner img{max-height:420px}.media-frame.app-portrait{min-height:360px;max-height:460px}.media-frame.app-portrait img{max-height:460px;width:100%;object-fit:contain}.media-frame.icon-square{width:72px;height:72px;min-height:72px;border-radius:16px}.media-frame.icon-square img{width:100%;height:100%;object-fit:contain}.split{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:24px;align-items:center}.split.reverse{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr)}.split.reverse .split-media{order:2}.split.reverse .split-copy{order:1}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.number-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;position:relative;overflow:hidden}.number-card .num{font-size:38px;line-height:1;color:rgba(30,111,184,.28);font-weight:900;margin-bottom:14px}.number-card h3{margin:0 0 8px;color:var(--ink)}.number-card p{margin:0;color:var(--muted)}.note-box{padding:20px;border-radius:14px;background:#EAF4FB;border:1px solid var(--border);color:var(--text)}.note-box strong{color:var(--ink)}.mint-box{background:#EAF7F5;border:1px solid rgba(57,166,156,.18)}.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related a{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;color:var(--ink);font-weight:800;min-height:76px}.related a span{display:block;color:var(--muted);font-size:13px;font-weight:500;margin-top:4px}.related a:hover{text-decoration:none;border-color:var(--border-strong)}.page-cta{margin-top:38px;padding:26px;border-radius:16px;background:linear-gradient(135deg,#184E7D,#1E6FB8);color:#fff}.page-cta h2{color:#fff;margin-top:0}.page-cta p{color:#D9EAF6}.page-cta .btn-secondary{background:#fff}
.home-cover{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px 18px 28px;box-shadow:var(--shadow)}.home-cover-copy{padding:22px 8px 0}.home-cover-copy .lead{max-width:880px}.task-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.task-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;min-height:170px}.task-card.has-thumb{padding:0;overflow:hidden}.task-card.has-thumb .task-copy{padding:16px}.task-card h3{margin:0 0 8px;color:var(--ink)}.task-card p{margin:0 0 10px;color:var(--muted);font-size:14px}.task-graphic{height:62px;border-radius:10px;background:linear-gradient(135deg,#DCEBF5,#EFF8FC);margin-bottom:14px;display:flex;align-items:center;padding:0 16px;color:var(--steel);font-size:28px;font-weight:900}.editor-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px}.editor-main{grid-row:span 2}.editor-grid .article-card{height:100%}.channel-band{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px;margin-bottom:18px}.channel-band:nth-child(even){grid-template-columns:1.1fr .9fr}.channel-band:nth-child(even) .channel-media{order:2}.channel-band:nth-child(even) .channel-copy{order:1}.channel-copy h3{font-size:24px;margin:0 0 8px;color:var(--ink)}.channel-copy p{margin:0;color:var(--text)}.channel-copy .btn-secondary{margin-top:12px}.topic-mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.topic-tile{border-radius:14px;padding:20px;min-height:160px;border:1px solid var(--border);background:#fff}.topic-tile:nth-child(1),.topic-tile:nth-child(6){grid-column:span 7;background:#EAF4FB}.topic-tile:nth-child(2),.topic-tile:nth-child(5){grid-column:span 5;background:#EAF7F5}.topic-tile:nth-child(3),.topic-tile:nth-child(4){grid-column:span 6}.topic-tile .num{font-weight:900;color:var(--steel)}.topic-tile h3{margin:22px 0 6px;color:var(--ink)}.collection-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}.shelf-stack{display:grid;gap:10px;margin-top:16px}.shelf-row{padding:14px 16px;background:#F8FBFD;border:1px solid var(--border);border-radius:10px;display:flex;justify-content:space-between;gap:12px}.watch-list{counter-reset:item;display:grid;gap:10px;margin-top:16px}.watch-item{display:grid;grid-template-columns:58px 1fr;gap:14px;align-items:start;padding:14px 0;border-bottom:1px solid var(--border)}.watch-item:last-child{border-bottom:0}.watch-num{font-size:28px;color:var(--steel);font-weight:900}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.tool-item{padding:20px;background:#fff;border:1px solid var(--border);border-radius:14px}.tool-item h3{margin:0 0 8px;color:var(--ink)}.demo-switch{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.demo-switch button{min-width:78px;min-height:44px;border-radius:10px;border:1px solid var(--border-strong);background:#fff;color:var(--steel);font-weight:800}.mobile-experience{display:grid;grid-template-columns:.7fr 1.3fr;gap:28px;align-items:center}.app-visual{display:flex;align-items:end;gap:16px}.app-copy ul{padding-left:20px}.boundary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.boundary-grid article{padding:22px;background:#fff;border:1px solid var(--border);border-radius:14px}.boundary-grid article h3{margin-top:0;color:var(--ink)}
.steps{display:grid;gap:14px}.step{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:14px}.step-num{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;background:#EAF4FB;color:var(--steel);font-weight:900}.step h3{margin:0 0 6px;color:var(--ink)}.step p{margin:0}.timeline{display:grid;gap:12px}.timeline-item{position:relative;padding:18px 18px 18px 58px;background:#fff;border:1px solid var(--border);border-radius:14px}.timeline-item:before{content:"";position:absolute;left:24px;top:25px;width:12px;height:12px;border-radius:50%;background:var(--steel)}.timeline-item h3{margin:0 0 6px;color:var(--ink)}.timeline-item p{margin:0}.details-list details{background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:10px;padding:0 18px}.details-list summary{cursor:pointer;min-height:54px;display:flex;align-items:center;font-weight:800;color:var(--ink)}.details-list details p{margin:0 0 18px}.policy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.policy-grid section{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}.policy-grid h3{margin-top:0;color:var(--ink)}.checklist{display:grid;gap:10px}.checkitem{display:grid;grid-template-columns:34px 1fr;gap:12px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px}.checkmark{width:34px;height:34px;border-radius:10px;background:#EAF7F5;color:#206D66;display:grid;place-items:center;font-weight:900}.map-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.map-stop{min-height:170px;padding:20px;border-radius:14px;border:1px solid var(--border);background:#fff;position:relative}.map-stop:after{content:"";position:absolute;right:-17px;top:50%;width:18px;border-top:2px dashed rgba(30,111,184,.25)}.map-stop:nth-child(3n):after,.map-stop:last-child:after{display:none}.map-stop h3{margin:12px 0 6px;color:var(--ink)}
.site-footer{background:#102F49;color:#D8E7F2;padding:44px 0 calc(30px + env(safe-area-inset-bottom))}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:auto}.footer-brand-row{display:flex;justify-content:space-between;gap:30px;align-items:start;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-brand{display:flex;align-items:center;gap:12px;color:#fff}.footer-brand:hover{text-decoration:none}.footer-brand .brand-logo{max-width:150px}.footer-brand span strong,.footer-brand span small{display:block}.footer-brand span small{color:#AFC7D9;font-size:12px}.footer-brand-row p{max-width:620px;margin:0;color:#C5D8E7}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:30px 0}.footer-groups h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-groups a{display:block;color:#C9DDEB;padding:4px 0}.footer-bottom{font-size:13px;color:#AFC7D9;border-top:1px solid rgba(255,255,255,.1);padding-top:20px}
.overlay{position:fixed;inset:0;z-index:90;background:rgba(10,30,46,.46);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.site-panel{position:fixed;left:50%;bottom:0;z-index:100;width:min(980px,calc(100% - 32px));max-height:82vh;overflow:auto;background:#F7FBFE;border-radius:18px 18px 0 0;border:1px solid var(--border);box-shadow:0 -20px 60px rgba(16,38,58,.2);transform:translate(-50%,30px);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;padding:22px}.site-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}.panel-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.panel-brand{display:flex;align-items:center;gap:12px}.panel-brand strong,.search-head strong{display:block;color:var(--ink);font-size:20px}.panel-brand span,.search-head span{display:block;color:var(--muted);font-size:13px}.close-button{min-width:58px;min-height:44px;border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:10px;font-weight:800}.panel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.panel-grid section{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px}.panel-grid h2{font-size:15px;color:var(--steel);margin:0 0 8px}.panel-grid a{display:block;padding:10px;border-radius:10px;color:var(--ink)}.panel-grid a:hover{background:#EFF7FC;text-decoration:none}.panel-grid a strong,.panel-grid a span{display:block}.panel-grid a span{font-size:12px;line-height:1.5;color:var(--muted);margin-top:3px}.panel-grid a[aria-current="page"]{background:#EAF4FB}.search-dialog{position:fixed;left:50%;top:50%;z-index:105;width:min(640px,calc(100% - 32px));max-height:80vh;overflow:auto;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 24px 70px rgba(16,38,58,.25);padding:22px;transform:translate(-50%,-46%);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease}.search-dialog.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,-50%)}.search-field{display:block}.search-field input{width:100%;height:52px;border:1px solid var(--border-strong);border-radius:12px;padding:0 15px;color:var(--ink);background:#F8FBFD}.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}.search-results a{padding:14px;border-radius:10px;background:#F5FAFD;border:1px solid var(--border);color:var(--ink)}.search-results a:hover{text-decoration:none;border-color:var(--border-strong)}.search-results strong,.search-results span{display:block}.search-results span{font-size:12px;color:var(--muted)}.search-empty{margin:14px 0 0;color:var(--muted)}.mobile-bottom{display:none}
@media(max-width:1100px){.layout-shell{grid-template-columns:210px minmax(0,1fr);gap:22px}.task-band{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:960px){.layout-shell{display:block}.side-rail{display:none}.panel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split,.split.reverse,.collection-layout,.mobile-experience{grid-template-columns:1fr}.split.reverse .split-media,.split.reverse .split-copy{order:initial}.editor-grid{grid-template-columns:1fr}.editor-main{grid-row:auto}.channel-band,.channel-band:nth-child(even){grid-template-columns:1fr}.channel-band:nth-child(even) .channel-media,.channel-band:nth-child(even) .channel-copy{order:initial}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){:root{--top:68px}.brand-status,.desktop-app-link{display:none}.topbar-inner{width:calc(100% - 24px);gap:8px}.top-actions{gap:6px}.icon-button,.menu-button{padding:0 13px;min-width:56px}.site-main{padding-top:22px;padding-bottom:96px}.layout-shell,.footer-inner{width:calc(100% - 32px)}.page-hero{padding:22px 18px}.page-hero h1,.home-title{font-size:30px}.lead{font-size:16px}.home-cover{padding:12px 12px 22px}.home-cover-copy{padding:18px 4px 0}.media-frame.banner{min-height:180px}.media-frame img{height:auto;max-height:none}.media-frame{min-height:180px}.media-frame.app-portrait{min-height:280px;max-height:none}.media-frame.app-portrait img{max-height:none}.task-band,.grid-2,.grid-3,.grid-4,.tool-grid,.boundary-grid,.policy-grid,.related,.map-grid{grid-template-columns:1fr}.topic-mosaic{grid-template-columns:1fr}.topic-tile:nth-child(n){grid-column:auto}.channel-band{padding:14px}.app-visual{align-items:center}.search-results{grid-template-columns:1fr}.panel-grid{grid-template-columns:1fr 1fr}.site-panel{width:100%;padding:18px 16px calc(20px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0}.panel-grid section{padding:12px}.panel-grid a{padding:8px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(5,1fr);height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--border);box-shadow:0 -8px 22px rgba(16,38,58,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--ink);font-size:13px;font-weight:800}.mobile-bottom a:hover{text-decoration:none}.mobile-bottom a.is-current{background:var(--steel);color:#fff}.site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}.footer-brand-row{display:block}.footer-brand-row p{margin-top:18px}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.step{grid-template-columns:44px 1fr}.step-num{width:44px;height:44px}.map-stop:after{display:none}}
@media(max-width:440px){.brand-wordmark{font-size:18px}.panel-grid{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr 1fr;gap:20px 14px}.top-actions .icon-button,.top-actions .menu-button{padding:0 10px}.page-hero{padding:20px 16px}.article-card{padding:20px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.overlay,.site-panel,.search-dialog{transition:none}}