:root{
  --bg:#FFFFFF;--deep:#F5F7FA;--panel:#FFFFFF;--soft:#EEF1F6;--title:#0A1628;--text:#1E2A3A;--muted:#4A5568;--subtle:#718096;--brand:#0033A0;--bright:#0052CC;--dark:#002066;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--radius:14px;--max:1220px;--header-h:134px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}body.layer-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button{font:inherit}.site-width{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.site-header{position:fixed;z-index:80;top:0;left:0;right:0;background:#fff}.brand-line{height:22px;background:var(--dark);color:#fff}.brand-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.mini-brand{font-size:12px;letter-spacing:.08em;font-weight:700}.line-action{height:22px;border:0;background:transparent;color:#fff;padding:0 10px;cursor:pointer;font-size:12px}.masthead{height:68px;background:#fff;border-bottom:1px solid var(--border)}.masthead-inner{height:68px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-lockup{justify-self:start;display:inline-flex;align-items:center;min-width:72px;height:44px;font-weight:900;font-size:28px;color:var(--brand)}.brand-lockup img{height:36px;max-width:170px;object-fit:contain;object-position:left center}.catalog-button,.app-entry,.button-primary,.button-secondary{min-height:44px;border-radius:10px;padding:10px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}.catalog-button{border:1px solid var(--brand);background:#fff;color:var(--brand);cursor:pointer}.app-entry{justify-self:end;background:linear-gradient(135deg,#0052CC 0%,#0033A0 50%,#002066 100%);color:#fff}.tab-strip{height:44px;background:var(--deep);border-bottom:1px solid var(--border)}.tab-strip-inner{height:44px;display:flex;align-items:center;gap:8px}.tab-link{height:32px;display:flex;align-items:center;padding:0 12px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700}.tab-link.is-current{background:var(--brand);color:#fff}.main-content{padding-top:var(--header-h);min-height:70vh}.hero,.page-hero{padding:34px 0 24px}.hero-media,.media-slot{background:var(--deep);border:1px solid var(--border);border-radius:16px;overflow:hidden;display:grid;place-items:center}.hero-media{min-height:180px;max-height:300px}.hero-media img{width:100%;max-height:300px;object-fit:contain;object-position:center}.hero-copy{max-width:900px;margin-top:22px}.eyebrow{display:inline-flex;align-items:center;min-height:26px;color:var(--brand);font-size:12px;letter-spacing:.1em;font-weight:900;text-transform:uppercase}.hero h1,.page-hero h1{margin:6px 0 12px;font-size:clamp(28px,4vw,32px);line-height:1.25;color:var(--title)}.hero p,.page-hero p{margin:0;color:var(--muted);font-size:16px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.button-primary{background:linear-gradient(135deg,#0052CC 0%,#0033A0 50%,#002066 100%);color:#fff}.button-secondary{background:#fff;border:1px solid var(--brand);color:var(--brand)}.section{padding:34px 0}.section.alt{background:var(--deep)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.section-head h2{margin:0;color:var(--title);font-size:24px}.section-head p{margin:0;max-width:650px;color:var(--muted)}.tag-grid,.three-grid,.six-grid,.card-grid,.info-grid{display:grid;gap:14px}.tag-grid{grid-template-columns:repeat(6,1fr)}.three-grid{grid-template-columns:repeat(3,1fr)}.six-grid{grid-template-columns:repeat(3,1fr)}.card-grid{grid-template-columns:repeat(2,1fr)}.info-grid{grid-template-columns:repeat(4,1fr)}.tag-card,.panel-card,.content-card,.shelf-item,.faq-item,.note-card{border:1px solid var(--border);background:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.tag-card b{display:inline-block;padding:3px 8px;border-radius:7px;background:var(--bright);color:#fff;font-size:12px;margin-bottom:10px}.tag-card:nth-child(even) b{background:var(--dark)}.tag-card h3,.panel-card h3,.content-card h3,.shelf-item h3,.note-card h3{margin:0 0 8px;color:var(--title);font-size:18px}.tag-card p,.panel-card p,.content-card p,.shelf-item p,.note-card p{margin:0;color:var(--muted)}.text-link{display:inline-flex;margin-top:12px;color:var(--brand);font-weight:800}.feature-grid{display:grid;grid-template-columns:minmax(280px,1fr) minmax(0,1.35fr);gap:24px;align-items:center}.media-slot{min-height:220px}.media-slot img{width:100%;max-height:240px;object-fit:contain;object-position:center}.media-slot.tall img{max-height:420px}.feature-copy h2{margin:0 0 12px;color:var(--title);font-size:26px}.feature-copy p{color:var(--muted)}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:70px 1fr;gap:16px;align-items:start;padding:18px 0;border-top:1px solid var(--border)}.number-item:first-child{border-top:0}.big-number{font-size:34px;line-height:1;font-weight:900;color:var(--brand);letter-spacing:-.04em}.number-item h3{margin:0 0 6px;color:var(--title)}.number-item p{margin:0;color:var(--muted)}.timeline{position:relative;display:grid;gap:18px;padding-left:28px}.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--border)}.timeline-item{position:relative;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px 18px}.timeline-item:before{content:"";position:absolute;left:-28px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px #fff}.timeline-item .status{display:inline-block;margin-bottom:8px;padding:2px 8px;border-radius:6px;background:var(--soft);color:var(--brand);font-weight:800;font-size:12px}.long-copy{max-width:920px}.long-copy h2{margin:28px 0 8px;color:var(--title);font-size:22px}.long-copy h2:first-child{margin-top:0}.long-copy p{margin:0 0 15px;color:var(--muted)}.article-index{display:grid;grid-template-columns:220px 1fr;gap:28px;align-items:start}.article-aside{position:sticky;top:160px;border:1px solid var(--border);border-radius:12px;padding:16px;background:var(--deep)}.article-aside a{display:block;padding:8px 0;color:var(--muted);font-weight:700}.article-aside a:hover{color:var(--brand)}.article-body section{padding:22px 0;border-top:1px solid var(--border)}.article-body section:first-child{border-top:0;padding-top:0}.article-body h2{color:var(--title);font-size:22px;margin:0 0 9px}.article-body p{margin:0 0 12px;color:var(--muted)}.app-showcase{display:grid;grid-template-columns:minmax(220px,.7fr) 1.3fr;gap:34px;align-items:center}.app-art{min-height:360px;background:var(--deep);border:1px solid var(--border);border-radius:16px;padding:18px;display:flex;align-items:center;justify-content:center}.app-art img{max-height:420px;max-width:100%;object-fit:contain}.app-icon-row{display:flex;align-items:center;gap:14px;margin-bottom:14px}.app-icon-row img{width:64px;height:64px;object-fit:contain}.app-icon-row strong{font-size:24px;color:var(--title)}.rights-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.faq-list{display:grid;gap:12px}.faq-item h2{font-size:18px;margin:0 0 8px;color:var(--title)}.faq-item p{margin:0;color:var(--muted)}.overlay{position:fixed;z-index:90;inset:0;background:rgba(10,22,40,.38);opacity:0;transition:opacity .18s ease;pointer-events:none}.overlay.is-visible{opacity:1;pointer-events:auto}.catalog-panel,.search-layer{position:fixed;z-index:100;left:0;right:0;top:90px;visibility:hidden;opacity:0;transform:translateY(-10px);pointer-events:none;transition:opacity .18s ease,transform .18s ease,visibility .18s}.catalog-panel.is-open,.search-layer.is-open{visibility:visible;opacity:1;transform:translateY(0);pointer-events:auto}.catalog-panel{background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);max-height:calc(100vh - 90px);overflow:auto}.catalog-inner{padding:20px 0 26px}.catalog-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:18px}.catalog-brand{display:flex;align-items:center;gap:12px;color:var(--title)}.catalog-brand img{height:32px;max-width:150px;object-fit:contain}.close-button{min-height:44px;border:1px solid var(--border);border-radius:9px;background:#fff;color:var(--brand);padding:8px 14px;font-weight:800;cursor:pointer}.catalog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:18px}.catalog-group h2{font-size:14px;color:var(--brand);margin:0 0 8px}.catalog-group a{display:block;padding:10px 0;border-top:1px solid var(--border)}.catalog-group a:first-of-type{border-top:0}.catalog-group strong,.catalog-group span{display:block}.catalog-group strong{font-size:15px;color:var(--title)}.catalog-group span{font-size:12px;color:var(--subtle);line-height:1.5;margin-top:2px}.search-layer{padding:18px 0}.search-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:var(--shadow)}.search-head h2{font-size:22px;margin:3px 0 0;color:var(--title)}.search-visual{margin:18px 0;padding:16px;border:1px solid var(--border);border-radius:10px;background:var(--deep);color:var(--subtle)}.search-links{display:flex;flex-wrap:wrap;gap:8px}.search-links a{min-height:44px;display:inline-flex;align-items:center;padding:8px 14px;border:1px solid var(--border);border-radius:9px;color:var(--brand);font-weight:800}.site-footer{background:#0A1628;color:#A0AEC0;margin-top:40px;padding:40px 0 24px}.footer-brand-row{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1)}.footer-brand{display:flex;align-items:center;gap:12px;color:#fff}.footer-brand img{height:32px;max-width:150px;object-fit:contain}.footer-brand span{display:flex;align-items:baseline;gap:8px}.footer-brand strong{font-size:22px}.footer-brand small{color:#A0AEC0}.footer-brand-row p{max-width:650px;margin:0}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:24px 0}.footer-grid h2{color:#fff;font-size:14px;margin:0 0 8px}.footer-grid a{display:block;padding:5px 0;color:#A0AEC0}.footer-grid a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}.footer-bottom a{color:#fff}.mobile-bottom-nav{display:none}a:focus-visible,button:focus-visible{outline:3px solid rgba(0,82,204,.28);outline-offset:3px}.panel-card:hover,.content-card:hover,.tag-card:hover,.shelf-item:hover{border-color:rgba(0,51,160,.3);transform:translateY(-1px);transition:.18s ease}
@media (max-width:960px){.tag-grid{grid-template-columns:repeat(3,1fr)}.three-grid,.six-grid,.info-grid{grid-template-columns:repeat(2,1fr)}.feature-grid,.app-showcase{grid-template-columns:1fr}.catalog-grid{grid-template-columns:repeat(2,1fr)}.article-index{grid-template-columns:1fr}.article-aside{position:static;display:flex;flex-wrap:wrap;gap:8px}.article-aside a{padding:6px 10px;background:#fff;border:1px solid var(--border);border-radius:8px}.rights-strip{grid-template-columns:1fr}}
@media (max-width:720px){:root{--header-h:90px}.site-width{width:min(calc(100% - 32px),var(--max))}.tab-strip{display:none}.masthead-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-lockup{min-width:0}.brand-lockup img{max-width:120px;height:30px}.catalog-button,.app-entry{padding:8px 12px;min-width:64px}.app-entry{font-size:13px}.hero,.page-hero{padding-top:26px}.hero-media{min-height:140px}.tag-grid,.three-grid,.six-grid,.card-grid,.info-grid{grid-template-columns:1fr}.feature-grid{gap:16px}.media-slot{min-height:180px}.number-item{grid-template-columns:52px 1fr}.big-number{font-size:28px}.catalog-panel,.search-layer{top:90px}.catalog-grid{grid-template-columns:1fr}.catalog-inner{padding-inline:16px}.search-layer{inset:90px 0 0;background:var(--deep);padding:16px 0;overflow:auto}.search-card{border-radius:12px}.footer-brand-row{display:block}.footer-brand-row p{margin-top:16px}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-bottom{display:block}.footer-bottom a{display:inline-block;margin-top:8px}.mobile-bottom-nav{position:fixed;z-index:70;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);box-shadow:0 -8px 20px rgba(0,33,102,.06)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--muted);min-width:0}.mobile-bottom-nav a.is-current{background:var(--brand);color:#fff}.site-footer{padding-bottom:calc(74px + env(safe-area-inset-bottom))}.app-art{min-height:280px}.article-body h2{font-size:20px}}
@media (max-width:420px){.site-width{width:calc(100% - 32px)}.brand-lockup img{max-width:98px}.brand-lockup{font-size:24px}.catalog-button,.app-entry{padding-inline:9px}.hero h1,.page-hero h1{font-size:28px}.footer-grid{grid-template-columns:1fr 1fr}}

.card-grid-spaced{margin-top:18px}.media-spaced{margin-bottom:22px}