:root{--bg:#F3F6F9;--surface:#FFFFFF;--soft:#E8EEF5;--title:#0B1220;--text:#1E293B;--muted:#475569;--aux:#64748B;--blue:#2563EB;--lightblue:#60A5FA;--deepblue:#1D4ED8;--lime:#65A30D;--slate:#334155;--border:rgba(37,99,235,.16);--shadow:0 14px 36px rgba(11,18,32,.08);--header-h:136px;--radius:18px;--max:1180px}*{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.overlay-open{overflow:hidden}a{color:inherit;text-decoration:none}a,button,input{font:inherit}button{cursor:pointer}.shell{width:min(calc(100% - 32px),var(--max));margin:0 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@media(max-width:900px){:root{--header-h:92px}.desktop-tabs{display:none}.site-main{padding-top:calc(var(--header-h) + 24px)}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr}.topic-strip{grid-template-columns:repeat(2,1fr)}.mosaic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-top{grid-template-columns:1fr}.phone-section{grid-template-columns:1fr 1fr}.feature-row{grid-template-columns:1fr 1.2fr}}
@media(max-width:700px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.shell,.page-shell{width:min(calc(100% - 32px),var(--max))}.command-inner{grid-template-columns:44px minmax(0,1fr) auto;gap:10px}.command-logo{min-width:0;overflow:hidden}.brand-mark{max-width:132px}.app-entry{padding:0 13px;font-size:14px}.grid-2,.grid-4{grid-template-columns:1fr}.topic-strip{grid-template-columns:1fr}.number-item{grid-template-columns:62px 1fr}.big-num{font-size:34px}.feature-row{grid-template-columns:1fr}.list-row{grid-template-columns:1fr;gap:6px}.list-row a{justify-self:start}.phone-section{grid-template-columns:1fr}.mosaic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.mosaic-shell{width:calc(100% - 16px);padding:16px}.mosaic-group{padding:14px}.mosaic-group span{font-size:12px}.search-layer{padding:0;background:#F3F6F9}.search-card{width:100%;min-height:100%;border:0;border-radius:0;box-shadow:none;padding:20px 16px}.site-footer{padding-bottom:72px}.footer-links{grid-template-columns:repeat(2,1fr)}.mobile-bottom{position:fixed;z-index:70;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(11,18,32,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--muted);font-size:12px;font-weight:800}.mobile-bottom a.is-current{color:var(--blue)}.mosaic-menu,.search-layer{z-index:130}}
@media(max-width:420px){.status-brand{font-size:12px}.app-entry{padding:0 10px}.mosaic-grid{grid-template-columns:1fr 1fr}.mosaic-group a{padding:10px 0}.mosaic-group strong{font-size:14px}.mosaic-group span{font-size:11px;line-height:1.5}.footer-links{grid-template-columns:1fr 1fr}.btn-row{display:grid;grid-template-columns:1fr}.btn-primary,.btn-secondary{width:100%}}