:root{--bg:#fff;--deep:#f5f7fa;--surface:#fff;--soft:#eef1f6;--title:#0a1628;--text:#1e2a3a;--muted:#4a5568;--hint:#718096;--blue:#0033a0;--bright:#0052cc;--navy:#002066;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--max:1220px;--radius:14px}
*{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;font-size:16px;line-height:1.75;overflow-x:hidden}body.layer-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}.wrap{width:min(var(--max),calc(100% - 40px));margin:0 auto}.site-header{position:fixed;inset:0 0 auto 0;z-index:80}.blue-line{height:22px;background:var(--navy);color:#fff}.blue-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between;font-size:12px}.micro-brand{font-weight:700;letter-spacing:.04em}.text-button{border:0;background:transparent;color:#fff;padding:0 4px;min-width:44px;height:22px}.masthead{height:68px;background:#fff;border-bottom:1px solid var(--border)}.masthead-inner{height:68px;display:grid;grid-template-columns:1fr 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rgba(0,82,204,.25);color:var(--blue)}.tab-link.is-current{background:var(--blue);color:#fff}main{padding-top:134px}.section{padding:54px 0}.section.alt{background:var(--deep)}.eyebrow{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em;text-transform:uppercase}.page-hero{padding:56px 0 34px;background:linear-gradient(180deg,#f8fbff 0%,#fff 100%);border-bottom:1px solid var(--border)}.page-hero h1,.home-intro h1{margin:10px 0 16px;color:var(--title);font-size:clamp(28px,3vw,32px);line-height:1.25}.page-hero p,.home-intro p{max-width:820px;margin:0;color:var(--muted)}.hero-actions,.inline-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border-radius:10px;font-weight:800}.btn.primary{background:linear-gradient(135deg,#0052cc 0%,#0033a0 50%,#002066 100%);color:#fff}.btn.secondary{border:1px solid var(--blue);background:#fff;color:var(--blue)}.btn:hover,.btn:focus-visible{outline:3px solid rgba(0,82,204,.18);outline-offset:2px}.media-slot{display:flex;align-items:center;justify-content:center;min-height:180px;border:1px solid var(--border);border-radius:var(--radius);background:#f4f7fb;overflow:hidden}.media-slot.banner{max-height:300px;aspect-ratio:16/7}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-slot.tall{max-height:420px}.media-slot.tall img{max-height:420px;width:auto}.media-slot.card-img{height:210px}.home-cover{padding:30px 0 44px}.home-intro{padding-top:24px}.kicker{font-size:14px;font-weight:800;color:var(--blue)}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.six{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h2,.card h3{margin:0 0 10px;color:var(--title);line-height:1.35}.card h2{font-size:21px}.card h3{font-size:18px}.card p{margin:0;color:var(--muted)}.card-link{display:inline-flex;margin-top:14px;color:var(--blue);font-weight:800}.tag-card{min-height:150px;position:relative;overflow:hidden}.tag-card:before{content:"";display:block;width:42px;height:8px;border-radius:4px;background:var(--bright);margin-bottom:18px}.tag-card:nth-child(even):before{background:var(--navy)}.section-title{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:24px}.section-title h2{margin:0;color:var(--title);font-size:26px;line-height:1.3}.section-title p{max-width:620px;margin:0;color:var(--muted)}.feature-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:26px;align-items:start}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:56px 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img{width:64px;height:64px;object-fit:contain;border-radius:14px}.icon-lockup strong{font-size:24px;color:var(--title)}.site-footer{background:#0a1628;color:#a0aec0;padding:46px 0 calc(28px + env(safe-area-inset-bottom))}.footer-top{display:grid;grid-template-columns:220px 1fr;gap:46px}.footer-brand{display:flex;align-items:center;gap:12px;color:#fff}.footer-brand img{max-width:100px;height:32px;object-fit:contain}.footer-brand div{display:flex;flex-direction:column;line-height:1.2}.footer-brand span{color:#a0aec0;font-size:13px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-groups section{display:flex;flex-direction:column;gap:8px}.footer-groups h2{margin:0 0 5px;color:#fff;font-size:15px}.footer-groups a{font-size:14px}.footer-groups a:hover,.footer-groups a:focus-visible{color:#fff;text-decoration:underline}.footer-note,.footer-copy{margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.overlay{position:fixed;inset:0;background:rgba(10,22,40,.48);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.catalog-panel,.search-layer{position:fixed;left:0;right:0;z-index:100;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-12px);transition:.22s ease}.catalog-panel{top:90px}.catalog-panel.is-open,.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.catalog-shell{width:min(var(--max),100%);margin:0 auto;background:#fff;border:1px solid var(--border);box-shadow:0 20px 60px rgba(0,32,102,.14);max-height:calc(100vh - 110px);overflow:auto}.catalog-head,.search-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.catalog-brand{display:flex;align-items:center;gap:10px;color:var(--title)}.catalog-brand img{height:30px;width:auto}.close-button{min-height:44px;min-width:64px;border:1px solid var(--border);border-radius:9px;background:#fff;color:var(--blue);font-weight:800}.catalog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:24px}.catalog-grid h2{margin:0 0 10px;color:var(--title);font-size:16px}.catalog-grid a{display:block;padding:10px 0;border-bottom:1px solid var(--border)}.catalog-grid b{display:block;color:var(--title)}.catalog-grid span{display:block;margin-top:3px;color:var(--muted);font-size:13px;line-height:1.55}.search-layer{top:90px}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:0 0 14px 14px;box-shadow:0 20px 60px rgba(0,32,102,.14);padding-bottom:24px}.search-card label{display:block;padding:20px 22px 8px;color:var(--muted)}.search-card input{display:block;width:calc(100% - 44px);margin:0 22px;height:48px;border:1px solid rgba(0,51,160,.3);border-radius:10px;padding:0 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@media(max-width:900px){.grid.four,.catalog-grid{grid-template-columns:repeat(2,1fr)}.grid.three,.grid.six{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-layout,.app-showcase{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.wrap{width:calc(100% - 32px)}.tab-strip{display:none}.site-header{height:90px}.masthead-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-mark{min-width:0}.brand-mark img{max-width:92px;height:30px}.catalog-button{min-width:68px}.app-link{min-width:76px;font-size:14px}main{padding-top:90px;padding-bottom:66px}.section{padding:40px 0}.home-cover{padding-top:18px}.media-slot.banner{aspect-ratio:16/9;max-height:300px}.grid.two,.grid.three,.grid.four,.grid.six{grid-template-columns:1fr}.card{padding:19px}.section-title{display:block}.section-title p{margin-top:8px}.shelf-row{grid-template-columns:1fr;gap:7px}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:calc(78px + env(safe-area-inset-bottom))}.catalog-panel{top:90px}.catalog-shell{max-height:calc(100vh - 90px);border-left:0;border-right:0}.catalog-grid{grid-template-columns:1fr;padding:18px}.search-layer{top:0;bottom:0;background:var(--deep)}.search-card{width:100%;height:100%;border:0;border-radius:0;box-shadow:none;overflow:auto;padding-top:env(safe-area-inset-top)}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;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)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:13px;color:var(--muted)}.mobile-bottom a.is-current{background:var(--blue);color:#fff;font-weight:800}.page-hero{padding-top:36px}.number-item{grid-template-columns:48px 1fr}.footer-top{gap:30px}}