:root{
--bg:#F3F7FB;--bg-deep:#E6EFF7;--surface:#FFFFFF;--surface-2:#DCEBF5;--ink:#10263A;--text:#263B4C;--muted:#60788C;--soft:#8094A5;--brand:#3B9FE0;--bright:#67B9EC;--steel:#1E6FB8;--ice:#B8DDF3;--mint:#39A69C;--line:rgba(30,111,184,.16);--line-strong:rgba(59,159,224,.38);--shadow:0 14px 36px rgba(16,38,58,.08);--radius:14px;--header-h: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","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}a{color:var(--steel);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(59,159,224,.35);outline-offset:3px}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}.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}
.brand-bar{position:sticky;top:0;z-index:50;height:var(--header-h);background:rgba(255,255,255,.93);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 8px 28px rgba(16,38,58,.05)}.brand-bar-inner{max-width:1240px;height:100%;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px}.brand-link{display:flex;align-items:center;min-height:44px;color:var(--ink);font-weight:800}.brand-logo{height:34px;width:auto;max-width:190px;object-fit:contain}.brand-text{font-size:20px;color:var(--ink);font-weight:800}.brand-status{color:var(--muted);font-size:14px}.brand-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.top-action{min-height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:9px 15px;font-weight:700}.top-action:hover{border-color:var(--line-strong);text-decoration:none}.app-link{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 52%,var(--steel) 100%);color:#fff;border-color:transparent}.menu-action{background:var(--bg-deep)}
.site-shell{max-width:1240px;margin:0 auto;padding:28px 20px 64px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:34px;align-items:start}.desktop-rail{position:sticky;top:calc(var(--header-h) + 22px);border:1px solid var(--line);background:rgba(255,255,255,.82);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.rail-group+.rail-group{margin-top:18px}.rail-group h2{margin:0 0 8px;font-size:13px;color:var(--soft);letter-spacing:.08em}.rail-link{display:block;min-height:44px;padding:8px 10px 8px 12px;border-left:3px solid transparent;border-radius:8px;color:var(--text)}.rail-link:hover{background:var(--bg-deep);text-decoration:none}.rail-link.is-current{border-left-color:var(--steel);background:#EAF4FB;color:var(--ink)}.rail-all{width:100%;min-height:44px;margin-top:16px;border:1px solid var(--line-strong);background:#fff;color:var(--steel);font-weight:800;border-radius:10px}.content-column{min-width:0}
.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin:0 0 14px}.breadcrumb a{color:var(--steel)}.page-hero{margin-bottom:28px}.eyebrow{display:inline-block;color:var(--steel);font-size:14px;font-weight:800;letter-spacing:.08em;margin-bottom:5px}.page-hero h1{font-size:clamp(30px,4vw,38px);line-height:1.25;margin:0 0 14px;color:var(--ink);letter-spacing:-.02em}.lead{max-width:850px;font-size:17px;color:var(--muted);margin:0}.hero-actions,.action-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:10px;font-weight:800;border:1px solid var(--line)}.btn:hover{text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 52%,var(--steel) 100%);color:#fff;border-color:transparent}.btn-secondary{background:#fff;color:var(--steel);border-color:var(--line-strong)}
.media-frame{background:linear-gradient(145deg,#fff,#EAF3FA);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;min-height:210px}.media-frame.banner-frame{max-height:420px;min-height:240px}.media-frame.app-frame{min-height:340px;max-height:460px}.media-image{width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder{width:100%;min-height:210px;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#F8FBFD,#DCEBF5);color:var(--steel);font-weight:800;letter-spacing:.05em}.brand-logo.media-placeholder,.footer-logo.media-placeholder,.panel-logo.media-placeholder{min-height:0;height:34px;background:none;justify-content:flex-start}.app-icon{width:64px;height:64px;object-fit:contain;border-radius:14px}.icon-frame{width:74px;height:74px;padding:5px;border:1px solid var(--line);border-radius:16px;background:#fff;display:flex;align-items:center;justify-content:center}
.section{margin:28px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-title h2{margin:0;color:var(--ink);font-size:clamp(22px,3vw,28px);line-height:1.35}.section-title p{margin:0;color:var(--muted);font-size:14px}.surface{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.padded{padding:24px}.soft-surface{background:var(--bg-deep);border:1px solid var(--line);border-radius:var(--radius)}.prose p{margin:0 0 1em}.prose h2,.prose h3{color:var(--ink);line-height:1.45}.prose h2{font-size:25px;margin:1.6em 0 .6em}.prose h3{font-size:19px;margin:1.3em 0 .4em}.prose ul{padding-left:1.2em}.prose li{margin:.4em 0}.editor-note{border-left:4px solid var(--mint);background:#EEF8F6;padding:15px 18px;border-radius:10px;color:#204943}.notice{border-left:4px solid var(--steel);background:#EDF6FC;padding:15px 18px;border-radius:10px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.tag{display:inline-flex;align-items:center;min-height:30px;padding:4px 10px;border:1px solid var(--line);border-radius:9px;background:#F8FBFD;color:var(--steel);font-size:13px;font-weight:700}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.task-card{padding:18px;border:1px solid var(--line);background:#fff;border-radius:13px;min-height:168px}.task-card .num{display:block;font-size:34px;font-weight:900;color:var(--ice);line-height:1}.task-card h3{margin:10px 0 5px;color:var(--ink);font-size:19px}.task-card p{margin:0 0 9px;color:var(--muted);font-size:15px}.task-card a{font-weight:800}.task-media{grid-row:span 2;display:flex;flex-direction:column;gap:12px}.editor-board{display:grid;grid-template-columns:1.45fr .85fr;gap:18px}.editor-main{padding:22px}.editor-side{display:grid;gap:18px}.editor-side article{padding:20px}.channel-band{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.15fr);gap:24px;align-items:center;padding:18px}.channel-band.reverse{grid-template-columns:minmax(0,1.15fr) minmax(260px,.9fr)}.channel-band.reverse .band-media{order:2}.channel-band h3{font-size:24px;color:var(--ink);margin:0 0 8px}.channel-band p{margin:0;color:var(--muted)}.band-media{min-width:0}.band-media .media-frame{min-height:210px;max-height:300px}
.timeline{position:relative;padding-left:28px}.timeline:before{content:"";position:absolute;left:8px;top:7px;bottom:8px;width:2px;background:var(--ice)}.timeline-item{position:relative;padding:0 0 22px 12px}.timeline-item:before{content:"";position:absolute;left:-24px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--steel);box-shadow:0 0 0 4px #E9F3FA}.timeline-item h3{margin:0;color:var(--ink)}.timeline-item p{margin:4px 0 0;color:var(--muted)}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:64px 1fr;gap:14px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px}.number-item .big-num{font-size:34px;line-height:1;font-weight:900;color:var(--steel)}.number-item h2,.number-item h3{margin:0 0 4px;color:var(--ink);font-size:20px}.number-item p{margin:0;color:var(--muted)}
.mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.mosaic article{min-height:160px;padding:20px;border-radius:14px;border:1px solid var(--line)}.mosaic article:nth-child(1),.mosaic article:nth-child(4){grid-column:span 7}.mosaic article:nth-child(2),.mosaic article:nth-child(3){grid-column:span 5}.mosaic article:nth-child(5),.mosaic article:nth-child(6){grid-column:span 6}.mosaic article:nth-child(odd){background:#E8F4FB}.mosaic article:nth-child(even){background:#EEF8F6}.mosaic .topic-no{font-size:13px;font-weight:900;color:var(--steel)}.mosaic h2,.mosaic h3{margin:4px 0 6px;color:var(--ink);font-size:21px}.mosaic p{margin:0;color:var(--muted)}
.shelf-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.shelf-rack{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:18px;background:#EAF3FA;border:1px solid var(--line);border-radius:14px}.shelf-cell{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;min-height:102px}.shelf-cell strong{display:block;color:var(--ink)}.shelf-cell span{font-size:14px;color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tool-item{padding:19px;border:1px solid var(--line);border-radius:12px;background:#fff}.tool-item h2,.tool-item h3{margin:0 0 6px;color:var(--ink);font-size:20px}.tool-item p{margin:0;color:var(--muted)}.demo-controls{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.demo-controls button{min-height:44px;border:1px solid var(--line-strong);background:#fff;color:var(--steel);border-radius:9px;padding:8px 13px;font-weight:800}.demo-controls button[aria-pressed="true"]{background:var(--steel);color:#fff}.app-layout{display:grid;grid-template-columns:minmax(250px,.8fr) minmax(0,1.2fr);gap:26px;align-items:center}.feature-list{display:grid;gap:12px}.feature-list article{padding:15px 17px;background:#fff;border:1px solid var(--line);border-radius:11px}.feature-list h2,.feature-list h3{margin:0 0 4px;color:var(--ink);font-size:20px}.feature-list p{margin:0;color:var(--muted)}.app-mark{display:flex;gap:12px;align-items:center;margin-bottom:16px}.app-mark strong{display:block;color:var(--ink);font-size:20px}.app-mark span{display:block;color:var(--muted);font-size:14px}
.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.related-links a{min-height:84px;display:flex;flex-direction:column;justify-content:center;padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}.related-links a:hover{text-decoration:none;border-color:var(--line-strong)}.related-links a strong{color:var(--steel)}.related-links a span{color:var(--muted);font-size:14px}.page-action{margin-top:30px;padding:24px;border-radius:14px;background:linear-gradient(135deg,#EAF5FC,#EAF7F4);border:1px solid var(--line)}.page-action h2{margin:0 0 6px;color:var(--ink)}.page-action p{margin:0;color:var(--muted)}
.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;padding:20px 20px 20px 68px;border:1px solid var(--line);background:#fff;border-radius:12px}.step:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:18px;top:18px;font-weight:900;font-size:22px;color:var(--steel)}.step h2,.step h3{margin:0 0 6px;color:var(--ink);font-size:21px}.step p{margin:0;color:var(--muted)}.kanban{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.kanban-col{padding:14px;background:#fff;border:1px solid var(--line);border-radius:12px}.kanban-col h3{font-size:16px;margin:0 0 10px;color:var(--ink)}.kanban-card{padding:12px;border-radius:9px;background:var(--bg-deep);margin-top:8px;color:var(--muted);font-size:14px}.route-map{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.route-stop{position:relative;padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px}.route-stop:not(:last-child):after{content:"→";position:absolute;right:-14px;top:50%;transform:translateY(-50%);color:var(--steel);font-weight:900;z-index:2}.route-stop strong{display:block;color:var(--ink)}.route-stop span{color:var(--muted);font-size:14px}.checklist{display:grid;gap:10px}.checkitem{display:grid;grid-template-columns:34px 1fr;gap:10px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:10px}.checkmark{width:28px;height:28px;border-radius:8px;background:#E8F4FB;color:var(--steel);display:grid;place-items:center;font-weight:900}.checkitem h2,.checkitem h3{margin:0;color:var(--ink);font-size:18px}.checkitem p{margin:3px 0 0;color:var(--muted)}.terms-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.term-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px}.term-card h2,.term-card h3{margin:0 0 7px;color:var(--ink);font-size:21px}.term-card p{margin:0;color:var(--muted)}
.faq-list{display:grid;gap:10px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:11px;overflow:hidden}.faq-list summary{cursor:pointer;min-height:52px;padding:14px 18px;font-weight:800;color:var(--ink);list-style-position:inside}.faq-list details p{margin:0;padding:0 18px 18px;color:var(--muted)}.contact-types{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.contact-card{padding:19px;background:#fff;border:1px solid var(--line);border-radius:12px}.contact-card h2,.contact-card h3{margin:0 0 5px;color:var(--ink);font-size:20px}.contact-card p{margin:0;color:var(--muted)}
.site-footer{background:#102F4B;color:#D5E3EE;padding:46px 20px 90px}.footer-inner{max-width:1240px;margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px}.footer-logo-link{display:flex;align-items:center;min-height:44px}.footer-logo{height:32px;width:auto;object-fit:contain}.footer-brand strong{display:block;color:#fff;font-size:20px}.footer-brand span{display:block;color:#AFC7D9;font-size:13px;letter-spacing:.08em}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.footer-group h2{font-size:15px;color:#fff;margin:0 0 9px}.footer-group a{display:block;color:#C8DCE9;min-height:34px;padding:3px 0}.footer-group a:hover{color:#fff}.footer-note{margin:28px 0 8px;max-width:900px;color:#BBD0DF}.copyright{margin:0;color:#94AEC2;font-size:14px}
.overlay{position:fixed;inset:0;background:rgba(16,38,58,.42);z-index:80;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .18s ease}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.site-panel{position:fixed;z-index:90;left:50%;bottom:18px;width:min(980px,calc(100% - 32px));max-height:82vh;background:#F9FCFE;border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 70px rgba(16,38,58,.22);transform:translate(-50%,28px);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;overflow:auto}.site-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}.panel-head{position:sticky;top:0;z-index:2;background:rgba(249,252,254,.96);backdrop-filter:blur(10px);display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;border-bottom:1px solid var(--line)}.panel-brand{display:flex;gap:12px;align-items:center}.panel-logo{height:30px;width:auto;object-fit:contain}.panel-brand strong{display:block;color:var(--ink);font-size:20px}.panel-brand span{display:block;color:var(--muted);font-size:13px}.close-button{min-width:52px;min-height:44px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:800}.panel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:20px}.panel-group h2{margin:0 0 10px;color:var(--steel);font-size:16px}.panel-link{display:block;padding:10px 0;border-top:1px solid rgba(30,111,184,.11);color:var(--ink)}.panel-link:hover{text-decoration:none}.panel-link strong{display:block}.panel-link span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
.search-dialog{position:fixed;z-index:95;left:50%;top:50%;width:min(640px,calc(100% - 32px));max-height:78vh;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 70px rgba(16,38,58,.25);transform:translate(-50%,-46%);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease}.search-dialog.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,-50%)}.search-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:20px;border-bottom:1px solid var(--line)}.search-head strong{display:block;color:var(--ink);font-size:21px}.search-head span{display:block;color:var(--muted);font-size:14px}.search-box{display:block;padding:18px 20px 10px}.search-box input{width:100%;min-height:48px;border:1px solid var(--line-strong);border-radius:10px;padding:10px 13px;color:var(--ink);background:#F9FCFE}.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:10px 20px 20px}.search-item{padding:13px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}.search-item:hover{text-decoration:none;background:#F3F8FC}.search-item strong,.search-item span{display:block}.search-item span{font-size:13px;color:var(--muted)}.search-empty{margin:0;padding:0 20px 20px;color:var(--muted)}.modal-open{overflow:hidden}.mobile-bottom{display:none}
html[data-reading-density="compact"] .prose{line-height:1.6}html[data-reading-density="relaxed"] .prose{line-height:2}
@media(max-width:1100px){.site-shell{grid-template-columns:210px minmax(0,1fr);gap:22px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.kanban{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:960px){.site-shell{display:block;padding-top:24px}.desktop-rail{display:none}.panel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.editor-board,.shelf-layout,.app-layout{grid-template-columns:1fr}.channel-band,.channel-band.reverse{grid-template-columns:1fr}.channel-band.reverse .band-media{order:0}.mosaic article:nth-child(n){grid-column:span 6}.route-map{grid-template-columns:repeat(2,minmax(0,1fr))}.route-stop:nth-child(2):after{display:none}.contact-types{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){:root{--header-h:68px}.brand-bar-inner{padding:0 16px;gap:8px}.brand-status,.app-link{display:none}.brand-actions{gap:6px}.top-action{padding:8px 11px;min-width:48px}.brand-logo{height:30px;max-width:150px}.site-shell{padding:20px 16px 88px}.page-hero h1{font-size:31px}.lead{font-size:16px}.grid-2,.grid-3,.grid-4,.tool-grid,.terms-grid,.related-links,.contact-types{grid-template-columns:1fr}.editor-board{display:block}.editor-main,.editor-side article{margin-bottom:14px}.mosaic{grid-template-columns:1fr}.mosaic article:nth-child(n){grid-column:auto}.shelf-rack{grid-template-columns:1fr}.number-item{grid-template-columns:50px 1fr}.kanban{grid-template-columns:1fr}.route-map{grid-template-columns:1fr}.route-stop:after{display:none!important}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.site-footer{padding:38px 16px 96px}.panel-grid{grid-template-columns:1fr;padding:14px 16px}.site-panel{bottom:0;width:100%;max-height:82vh;border-radius:18px 18px 0 0}.panel-head{padding:14px 16px}.panel-brand span{display:none}.search-results{grid-template-columns:1fr}.mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.96);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -8px 24px rgba(16,38,58,.07)}.mobile-bottom a{min-height:56px;display:grid;place-items:center;color:var(--muted);font-weight:800;font-size:13px}.mobile-bottom a:hover{text-decoration:none}.mobile-bottom a.is-current{background:var(--steel);color:#fff}.media-frame.banner-frame{min-height:190px}.media-frame,.band-media .media-frame{min-height:180px}.channel-band{padding:14px}.padded{padding:19px}.app-frame{min-height:300px}.footer-brand{align-items:flex-start}}
@media(max-width:420px){.footer-groups{grid-template-columns:1fr}.brand-actions .top-action{font-size:13px}.search-head{padding:16px}.search-box{padding:15px 16px 8px}.search-results{padding:8px 16px 16px}.page-action{padding:19px}.task-card{min-height:auto}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}