:root{--bg:#fff;--deep-bg:#f5f7fa;--content:#fff;--sub:#eef1f6;--title:#0a1628;--text:#1e2a3a;--muted:#4a5568;--soft:#718096;--brand:#0033a0;--bright:#0052cc;--deep:#002066;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--radius:14px;--max:1220px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.75;padding-top:118px;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.site-header{position:fixed;inset:0 0 auto;z-index:90}.spine{height:18px;background:var(--deep);color:#fff}.spine-inner,.coverbar-inner,.tabbar-inner,.footer-inner,.catalog-shell{width:min(calc(100% - 32px),var(--max));margin:0 auto}.spine-inner{height:18px;display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:.05em}.spine-brand{color:#fff}.spine-search{height:18px;min-width:44px;border:0;background:transparent;color:#fff;cursor:pointer;padding:0 8px}.coverbar{height:60px;background:#fff;border-bottom:1px solid var(--border)}.coverbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-lockup{justify-self:start;display:flex;align-items:center;min-width:64px}.site-logo,.catalog-logo,.footer-logo{display:block;object-fit:contain;object-position:left center}.site-logo{max-width:150px;height:36px}.logo-fallback{font-size:24px;font-weight:900;color:var(--deep)}.catalog-trigger,.app-link,.btn,.btn-secondary{min-height:44px;border-radius:10px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.catalog-trigger{justify-self:center;border:1px solid var(--brand);background:#fff;color:var(--brand);cursor:pointer}.app-link{justify-self:end;color:#fff;background:linear-gradient(135deg,#0052cc 0%,#0033a0 50%,#002066 100%)}.tabbar{height:40px;background:var(--sub);border-bottom:1px solid var(--border)}.tabbar-inner{height:40px;display:flex;gap:8px;align-items:center}.tab-link{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:6px;color:var(--muted);font-size:14px;font-weight:700}.tab-link:hover,.tab-link:focus-visible{background:#fff;color:var(--brand);outline:2px solid rgba(0,82,204,.24)}.tab-link.is-current{background:var(--brand);color:#fff}.site-main{min-height:60vh}.section{padding:56px 0}.section.alt{background:var(--deep-bg)}.section-inner{width:min(calc(100% - 32px),var(--max));margin:0 auto}.hero{padding:28px 0 48px}.hero-media,.media-frame{background:var(--deep-bg);border:1px solid var(--border);border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{max-height:300px;min-height:190px}.hero-media img{width:100%;height:100%;max-height:300px;object-fit:contain;object-position:center}.image-slot{width:100%;min-height:190px;background:linear-gradient(135deg,#f5f7fa,#eef1f6);border:1px solid var(--border);border-radius:12px}.hero-copy{max-width:840px;padding-top:24px}.eyebrow{margin:0 0 6px;color:var(--brand);font-weight:800;letter-spacing:.12em}.hero h1,.page-hero h1{margin:0;color:var(--title);font-size:clamp(28px,4vw,32px);line-height:1.25}.lede{color:var(--muted);max-width:900px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{color:#fff;background:linear-gradient(135deg,#0052cc 0%,#0033a0 50%,#002066 100%)}.btn-secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}.btn:hover,.btn-secondary:hover,.app-link:hover{transform:translateY(-1px)}.btn:focus-visible,.btn-secondary:focus-visible,.app-link:focus-visible,.catalog-trigger:focus-visible,.spine-search:focus-visible,.panel-close:focus-visible,a:focus-visible{outline:3px solid rgba(0,82,204,.28);outline-offset:2px}.page-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.page-card,.content-card,.status-card,.number-card,.topic-card,.list-row,.faq-item,.policy-block{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.page-card{padding:22px;min-height:165px}.accent-chip{display:inline-block;padding:4px 9px;border-radius:6px;background:var(--bright);color:#fff;font-size:12px;font-weight:800}.page-card:nth-child(even) .accent-chip{background:var(--deep)}.page-card h2,.content-card h2,.policy-block h2,.topic-card h2{color:var(--title);font-size:20px;margin:14px 0 8px}.text-link{color:var(--brand);font-weight:800}.section-title{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section-title h2{margin:0;color:var(--title);font-size:26px}.section-title p{margin:0;color:var(--muted);max-width:680px}.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}.media-frame{min-height:250px}.media-frame img,.content-card img,.app-visual img{width:100%;height:100%;max-height:360px;object-fit:contain;object-position:center}.number-list{display:grid;gap:10px;margin-top:20px}.number-list a{display:grid;grid-template-columns:48px 1fr;gap:12px;padding:14px 0;border-top:1px solid var(--border)}.number-list strong{color:var(--brand);font-size:20px}.four-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.content-card{overflow:hidden}.content-card .card-media{height:200px;display:flex;align-items:center;justify-content:center;background:var(--deep-bg);border-bottom:1px solid var(--border)}.content-card .card-media img{max-height:200px}.content-card .card-media .image-slot{min-height:200px;border:0;border-radius:0}.card-copy{padding:18px}.six-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.topic-card{padding:20px}.shelf-list,.long-list{display:grid;gap:12px}.list-row{display:grid;grid-template-columns:120px 1fr auto;gap:16px;align-items:center;padding:18px}.list-row .label{font-weight:900;color:var(--brand)}.rank-list{display:grid;gap:10px}.rank-row{display:grid;grid-template-columns:80px 1fr;gap:18px;padding:16px 0;border-top:1px solid var(--border)}.rank-no{font-size:42px;line-height:1;color:var(--brand);font-weight:900}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.status-card{padding:20px}.status-card strong{color:var(--brand)}.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.editor-quote{margin:0;padding:22px;border-left:4px solid var(--brand);background:var(--deep-bg);border-radius:0 12px 12px 0}.editor-quote cite{display:block;color:var(--brand);font-style:normal;font-weight:800;margin-top:10px}.app-layout{display:grid;grid-template-columns:minmax(240px,.7fr) minmax(0,1.3fr);gap:32px;align-items:center}.app-visual{display:flex;align-items:center;justify-content:center;min-height:360px;background:var(--deep-bg);border:1px solid var(--border);border-radius:16px}.app-visual img{max-height:420px}.icon-line{display:flex;gap:14px;align-items:center;margin-bottom:16px}.icon-line img{width:64px;height:64px;object-fit:contain}.page-hero{padding:42px 0 24px;background:linear-gradient(180deg,#f5f7fa 0%,#fff 100%);border-bottom:1px solid var(--border)}.breadcrumbs{color:var(--soft);font-size:14px;margin-bottom:8px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:30px;align-items:start}.article-body{max-width:860px}.article-body p{margin:0 0 18px}.article-body h2{margin:34px 0 12px;color:var(--title);font-size:22px}.aside-box{position:sticky;top:136px;background:var(--deep-bg);border:1px solid var(--border);border-radius:14px;padding:18px}.aside-box h2{font-size:18px;color:var(--title);margin-top:0}.aside-box a{display:block;padding:8px 0;color:var(--brand);font-weight:700}.number-card{display:grid;grid-template-columns:84px 1fr;gap:18px;padding:20px}.number-card .big{font-size:44px;font-weight:900;color:var(--brand);line-height:1}.step-list{display:grid;gap:16px}.step{padding:20px;border-left:4px solid var(--brand);background:var(--deep-bg);border-radius:0 12px 12px 0}.policy-stack{display:grid;gap:16px}.policy-block{padding:22px}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2{font-size:18px;color:var(--title);margin:0 0 8px}.site-footer{background:#0a1628;color:#a0aec0;padding:46px 0 calc(34px + env(safe-area-inset-bottom))}.footer-brand{display:flex;gap:14px;align-items:center;color:#fff;margin-bottom:28px}.footer-logo{width:110px;height:34px}.footer-brand span{display:block;color:#a0aec0;font-size:12px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:14px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;padding:5px 0;color:#cbd5e0}.footer-grid a:hover{color:#fff}.footer-note{margin-top:28px;max-width:850px}.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;margin-top:18px}.overlay{position:fixed;inset:0;z-index:96;background:rgba(10,22,40,.42);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.catalog-panel,.search-panel{position:fixed;z-index:98;left:0;right:0;top:78px;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.2s}.catalog-panel.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.catalog-shell{background:#fff;border:1px solid var(--border);border-radius:0 0 16px 16px;box-shadow:var(--shadow);max-height:50vh;overflow:auto}.catalog-head,.search-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}.catalog-brand{display:flex;align-items:center;gap:10px;font-weight:900}.catalog-logo{width:92px;height:30px}.panel-close{min-width:44px;min-height:44px;border:1px solid var(--border);background:#fff;color:var(--brand);border-radius:10px;cursor:pointer}.catalog-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:18px}.catalog-group h2{font-size:13px;letter-spacing:.12em;color:var(--soft);margin:0 0 8px}.catalog-group a{display:block;padding:10px 0;border-top:1px solid rgba(0,51,160,.08)}.catalog-group strong{display:block;color:var(--title)}.catalog-group span{display:block;color:var(--muted);font-size:13px;line-height:1.55}.search-card{width:min(calc(100% - 32px),820px);margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:0 0 16px 16px;box-shadow:var(--shadow);padding:0 18px 20px}.search-head{padding-left:0;padding-right:0}.search-label{display:block;font-weight:800;color:var(--title);margin:16px 0 8px}.search-card input{width:100%;min-height:48px;border:1px solid var(--border);border-radius:10px;padding:10px 12px;color:var(--text);background:var(--deep-bg)}.preset-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.preset-links a{padding:9px 12px;border-radius:8px;background:var(--sub);color:var(--brand);font-weight:700}.mobile-bottom{display:none}
@media(max-width:980px){.four-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.aside-box{position:static}.catalog-groups{grid-template-columns:repeat(2,1fr)}.page-cards{grid-template-columns:repeat(2,1fr)}.six-grid{grid-template-columns:repeat(2,1fr)}.status-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){body{padding-top:78px;padding-bottom:calc(50px + env(safe-area-inset-bottom))}.tabbar{display:none}.coverbar-inner{grid-template-columns:minmax(70px,1fr) auto minmax(70px,1fr);gap:8px}.site-logo{max-width:96px;height:30px}.catalog-trigger,.app-link{padding:8px 10px;font-size:13px;min-height:44px}.section{padding:40px 0}.hero{padding-top:18px}.hero-media{min-height:150px}.page-cards,.four-grid,.six-grid,.status-grid,.quote-grid,.footer-grid{grid-template-columns:1fr}.split,.app-layout{grid-template-columns:1fr}.list-row{grid-template-columns:1fr;gap:6px}.section-title{display:block}.section-title p{margin-top:8px}.content-card .card-media{height:190px}.app-visual{min-height:300px}.article-layout{display:block}.catalog-panel,.search-panel{top:78px}.catalog-shell{width:100%;max-height:66vh;border-radius:0}.catalog-groups{grid-template-columns:1fr;padding:14px 16px}.search-card{width:calc(100% - 16px);background:var(--deep-bg)}.mobile-bottom{position:fixed;z-index:88;left:0;right:0;bottom:0;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;min-width:0;font-size:12px;color:var(--muted)}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.site-footer{padding-bottom:calc(90px + env(safe-area-inset-bottom))}.number-card{grid-template-columns:58px 1fr}.number-card .big{font-size:34px}.rank-row{grid-template-columns:60px 1fr}.rank-no{font-size:34px}}