:root{--bg:#FFFFFF;--deep:#F5F7FA;--card:#FFFFFF;--sub:#EEF1F6;--title:#0A1628;--text:#1E2A3A;--muted:#4A5568;--soft:#718096;--brand:#0033A0;--bright:#0052CC;--navy:#002066;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--top:118px}
*{box-sizing:border-box}html{scroll-behavior:smooth}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:1.78;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(0,82,204,.28);outline-offset:2px}.shell{width:min(1220px,calc(100% - 32px));margin:0 auto}.site-header{position:fixed;top:0;left:0;right:0;z-index:1000}.spine-line{height:18px;background:var(--navy);color:#fff;font-size:11px}.spine-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.spine-brand{font-weight:700;letter-spacing:.12em}.icon-button{height:18px;border:0;background:transparent;color:#fff;padding:0 8px;cursor:pointer;font-size:11px}.bookbar{height:60px;background:#fff;border-bottom:1px solid var(--border)}.bookbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;min-height:44px;display:inline-flex;align-items:center}.brand-logo{display:block;max-width:145px;height:34px;object-fit:contain;object-position:left center}.brand-fallback{font-size:28px;line-height:1;color:var(--navy);font-weight:900;letter-spacing:.02em}.catalog-button,.app-link,.button-primary,.button-secondary,.close-button{min-height:44px;border-radius:10px;font:inherit;font-weight:700;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.catalog-button{border:1px solid var(--border);background:#fff;color:var(--navy);padding:0 18px}.app-link{justify-self:end;background:linear-gradient(135deg,#0052CC 0%,#0033A0 50%,#002066 100%);color:#fff;padding:0 18px}.app-link:hover,.button-primary:hover{color:#fff;text-decoration:none;filter:brightness(1.05)}.tabbar{height:40px;background:var(--deep);border-bottom:1px solid var(--border)}.tabbar-inner{height:40px;display:flex;align-items:center;gap:6px}.tabbar a{height:28px;padding:0 12px;display:flex;align-items:center;color:var(--muted);border-radius:7px;font-size:14px}.tabbar a.is-active{background:var(--brand);color:#fff;text-decoration:none}.page-main{padding-top:calc(var(--top) + 28px);min-height:60vh}.page-hero{padding:24px 0 28px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.18em;color:var(--brand);text-transform:uppercase}.page-hero h1,.home-lead h1{font-size:clamp(28px,4vw,32px);line-height:1.24;margin:8px 0 16px;color:var(--title)}.lead{font-size:17px;color:var(--muted);max-width:850px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.button-primary{background:linear-gradient(135deg,#0052CC 0%,#0033A0 50%,#002066 100%);color:#fff;padding:0 18px}.button-secondary{background:#fff;color:var(--brand);border:1px solid rgba(0,51,160,.36);padding:0 18px}.section{padding:34px 0}.section.soft{background:var(--deep)}.section h2{font-size:24px;line-height:1.3;margin:0 0 14px;color:var(--title)}.section-intro{max-width:840px;color:var(--muted);margin:0 0 22px}.media-frame{width:100%;height:220px;background:var(--deep);border:1px solid var(--border);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-frame img{width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#F5F7FA,#EEF1F6);color:rgba(0,51,160,.26);font-size:46px;font-weight:900;letter-spacing:.08em}.banner-frame{height:min(300px,44vw);min-height:190px}.app-frame{height:420px}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card-grid.two{grid-template-columns:repeat(2,1fr)}.card-grid.four{grid-template-columns:repeat(4,1fr)}.card,.info-card,.status-card,.index-card{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:20px}.card h3,.info-card h3,.status-card h3{margin:8px 0;color:var(--title);font-size:19px}.card p,.info-card p,.status-card p{margin:0;color:var(--muted)}.card-link{display:inline-flex;margin-top:14px;font-weight:800}.tone-chip{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:0 10px;border-radius:7px;background:var(--bright);color:#fff;font-size:13px;font-weight:800}.tone-chip.dark{background:var(--navy)}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}.split.reverse{grid-template-columns:.95fr 1.05fr}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:58px 1fr;gap:14px;align-items:start;padding:16px 0;border-bottom:1px solid var(--border)}.number-item:last-child{border-bottom:0}.number{font-size:30px;line-height:1;color:var(--brand);font-weight:900;letter-spacing:-.04em}.number-item h3{margin:0 0 4px;font-size:18px;color:var(--title)}.number-item p{margin:0;color:var(--muted)}.shelf-list{display:grid;gap:10px}.shelf-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:14px 16px;background:#fff;border:1px solid var(--border);border-radius:12px}.shelf-row strong{color:var(--title)}.shelf-row span{color:var(--muted);font-size:14px}.shelf-row a{font-weight:800}.quote-box{border-left:4px solid var(--brand);padding:16px 18px;background:var(--deep);border-radius:0 12px 12px 0;color:var(--muted)}.quote-box strong{display:block;color:var(--title);margin-bottom:6px}.prose{max-width:900px}.prose h2{margin-top:34px}.prose h3{margin-top:24px;color:var(--title)}.prose p{margin:0 0 18px}.prose ul{padding-left:1.2em}.prose li{margin-bottom:8px}.note-strip{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border:1px solid var(--border);background:var(--deep);border-radius:12px;color:var(--muted)}.tag-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tag-card{min-height:150px;padding:18px;border:1px solid var(--border);background:#fff;border-radius:12px}.tag-card h3{margin:0 0 8px;color:var(--title)}.tag-card p{margin:0 0 12px;color:var(--muted)}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.status-card{box-shadow:none}.status-mark{width:36px;height:8px;border-radius:4px;background:var(--brand);margin-bottom:14px}.faq-list{display:grid;gap:14px}.faq-item{border:1px solid var(--border);border-radius:12px;background:#fff;padding:20px}.faq-item h2,.faq-item h3{font-size:19px;margin:0 0 10px}.faq-item p{margin:0;color:var(--muted)}.catalog-drawer,.search-layer{position:fixed;left:0;right:0;top:78px;z-index:1200;visibility:hidden;pointer-events:none}.catalog-drawer.is-open,.search-layer.is-open{visibility:visible;pointer-events:auto}.catalog-panel,.search-card{width:min(1220px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--border);border-top:0;box-shadow:0 24px 60px rgba(0,32,102,.18)}.catalog-panel{max-height:50vh;overflow:auto;padding:18px 20px 22px}.catalog-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.catalog-brand{display:flex;align-items:center;gap:10px}.close-button{border:1px solid var(--border);background:#fff;color:var(--navy);padding:0 14px}.catalog-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:16px}.catalog-groups section h2{font-size:15px;margin:0 0 8px;color:var(--brand)}.catalog-groups section a{display:block;border-top:1px solid var(--border);padding:10px 0;color:var(--title)}.catalog-groups section a:first-of-type{border-top:0}.catalog-groups strong{display:block;font-size:15px}.catalog-groups span{display:block;color:var(--soft);font-size:12px;line-height:1.45;margin-top:3px}.search-card{max-width:760px;padding:20px}.search-card label{display:block;color:var(--title);font-weight:800;margin:12px 0 8px}.search-card input{width:100%;height:48px;border:1px solid rgba(0,51,160,.28);border-radius:10px;padding:0 14px;font:inherit;color:var(--text);background:#fff}.search-presets{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.search-presets a{padding:9px 12px;border-radius:8px;background:var(--sub);font-weight:700}.search-note{font-size:13px;color:var(--soft);margin:12px 0 0}.site-mask{position:fixed;inset:0;z-index:1100;background:rgba(10,22,40,.42);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease}.site-mask.is-open{opacity:1;visibility:visible;pointer-events:auto}.site-footer{background:var(--title);color:#A0AEC0;padding:44px 0 74px}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:28px}.footer-brand strong{color:#fff;font-size:20px;margin-right:8px}.footer-brand p{max-width:380px}.footer-logo-link{display:block;width:max-content;margin-bottom:14px}.footer-logo{filter:brightness(0) invert(1);opacity:.95}.footer-column h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-column a{display:block;color:#CBD5E0;margin:7px 0}.footer-bottom{padding-top:24px;margin-top:28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.mobile-bottom{display:none}.home-cover{padding:22px 0 28px}.home-lead{padding-top:20px;max-width:900px}.home-lead p{color:var(--muted);margin:0}.page-cards{padding:4px 0 28px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feature-card{border:1px solid var(--border);border-radius:12px;padding:18px;background:#fff}.feature-card h2{font-size:18px;margin:8px 0}.feature-card p{margin:0;color:var(--muted)}.home-image-card{padding:0;overflow:hidden}.home-image-card .media-frame{border:0;border-radius:0;height:200px}.home-image-card .card-copy{padding:18px}.app-product{display:grid;grid-template-columns:minmax(220px,.75fr) 1.25fr;gap:28px;align-items:center}.brand-signature{font-size:52px;line-height:1;font-weight:900;color:var(--navy);letter-spacing:-.05em}.mini-index{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.index-card{box-shadow:none}.index-card small{color:var(--soft)}.index-card h3{margin:5px 0;color:var(--title)}.index-card p{margin:0;color:var(--muted)}
@media(max-width:980px){.card-grid.four,.status-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-brand{grid-column:1/-1}.catalog-groups{grid-template-columns:repeat(2,1fr)}.split,.split.reverse,.app-product{grid-template-columns:1fr}.app-frame{height:360px}}
@media(max-width:760px){:root{--top:78px}.shell{width:calc(100% - 32px)}.tabbar{display:none}.bookbar-inner{grid-template-columns:minmax(84px,1fr) auto minmax(84px,1fr);gap:8px}.brand-logo{max-width:112px;height:30px}.brand-fallback{font-size:24px}.catalog-button,.app-link{padding:0 10px;min-height:44px;font-size:14px}.page-main{padding-top:calc(var(--top) + 18px)}.page-hero{padding-top:18px}.card-grid,.card-grid.two,.card-grid.four,.feature-grid,.tag-grid,.status-grid,.mini-index{grid-template-columns:1fr}.media-frame{height:210px}.banner-frame{height:min(300px,58vw);min-height:180px}.app-frame{height:380px}.shelf-row{grid-template-columns:1fr}.shelf-row a{justify-self:start}.catalog-drawer,.search-layer{top:78px}.catalog-panel{width:100%;max-height:66vh;border-left:0;border-right:0}.catalog-groups{grid-template-columns:1fr 1fr;gap:16px}.search-card{width:calc(100% - 20px);background:var(--deep)}.footer-grid{grid-template-columns:repeat(2,1fr);gap:22px}.site-footer{padding-bottom:92px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:1050;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;min-height:50px}.mobile-bottom a.is-active{background:var(--brand);color:#fff;text-decoration:none}.catalog-drawer.is-open~.mobile-bottom{z-index:1050}.brand-signature{font-size:44px}}
@media(max-width:480px){.catalog-groups{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.hero-actions{display:grid;grid-template-columns:1fr}.button-primary,.button-secondary{width:100%}.banner-frame{height:210px}.media-frame{height:190px}.app-frame{height:340px}.number-item{grid-template-columns:48px 1fr}.number{font-size:26px}}