:root{--bg:#fff;--deep-bg:#F5F7FA;--secondary:#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);--max:1220px;--spine-h:18px;--mast-h:60px;--tabs-h:40px}
*{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.is-locked{overflow:hidden}a{color:var(--brand);text-decoration:none}a:hover{color:var(--bright)}a:focus-visible,button:focus-visible{outline:3px solid rgba(0,82,204,.28);outline-offset:2px}button{font:inherit}img{max-width:100%;display:block}.site-fixed{position:fixed;top:0;left:0;right:0;z-index:1000}
.spine{height:var(--spine-h);background:var(--deep);color:#fff;font-size:11px;letter-spacing:.04em}.spine-inner,.mast-inner,.tabs-inner,.shell,.footer-inner,.drawer-inner,.search-card{width:min(var(--max),calc(100% - 32px));margin:0 auto}.spine-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.spine-brand{font-weight:700}.icon-btn,.mast-action,.drawer-close,.search-close{border:0;background:transparent;color:inherit;cursor:pointer;min-height:44px;min-width:44px}.spine .icon-btn{min-height:18px;min-width:auto;padding:0 2px;color:#fff;font-size:11px}
.mast{height:var(--mast-h);background:#fff;border-bottom:1px solid var(--border)}.mast-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{justify-self:start;display:inline-flex;align-items:center;min-height:44px;color:var(--title);font-weight:800}.brand-link img,.drawer-brand img,.footer-brand img{height:34px;width:auto;max-width:180px;object-fit:contain}.brand-fallback{font-size:24px;font-weight:900;color:var(--brand);line-height:1}.mast-menu{justify-self:center;border:1px solid var(--border);background:#fff;color:var(--brand);border-radius:10px;padding:8px 18px;font-weight:700;cursor:pointer;min-height:44px}.mast-action{justify-self:end;display:inline-flex;align-items:center;padding:0 12px;color:var(--brand);font-weight:700;border:1px solid var(--border);border-radius:10px;background:#fff}
.tabs{height:var(--tabs-h);background:var(--deep-bg);border-bottom:1px solid var(--border)}.tabs-inner{height:100%;display:flex;align-items:center;gap:8px}.tab-link{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:7px;color:var(--muted);font-size:14px;font-weight:700}.tab-link.current{background:var(--brand);color:#fff}.site-main{padding-top:calc(var(--spine-h) + var(--mast-h) + var(--tabs-h));min-height:70vh}.shell{padding:34px 0 70px}
.page-head{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:30px;align-items:center;margin-bottom:34px}.eyebrow{color:var(--brand);font-weight:800;font-size:13px;letter-spacing:.08em;margin:0 0 8px}h1,h2,h3{color:var(--title);line-height:1.25;margin-top:0}h1{font-size:clamp(28px,3vw,32px);margin-bottom:14px}h2{font-size:24px;margin-bottom:10px}h3{font-size:18px;margin-bottom:8px}.lead{font-size:17px;color:var(--muted);max-width:820px;margin:0}
.media-slot{background:linear-gradient(145deg,#f7f9fc,#edf3fb);border:1px solid var(--border);border-radius:16px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:210px}.media-slot img{width:100%;height:100%;max-height:240px;object-fit:contain;object-position:center}.media-slot.banner{min-height:220px;max-height:300px}.media-slot.banner img{max-height:300px}.media-slot.app-media{min-height:280px}.media-slot.app-media img{max-height:420px;width:auto}.fallback-visual{width:100%;min-height:210px;display:grid;place-items:center;padding:28px;text-align:center;color:var(--deep);font-weight:850;font-size:24px;background:linear-gradient(135deg,transparent 0 38%,rgba(0,82,204,.07) 38% 62%,transparent 62%),linear-gradient(25deg,rgba(0,51,160,.05),transparent 55%)}.fallback-visual small{display:block;font-size:13px;color:var(--soft);font-weight:600;margin-top:6px}
.section{margin:44px 0}.section-tight{margin:28px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.section-title p{margin:0;color:var(--soft);font-size:14px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow)}.card p:last-child{margin-bottom:0}.card.media-card{padding:0;overflow:hidden}.card-body{padding:18px 20px 22px}.card .media-slot{border:0;border-radius:0;min-height:180px}.card .media-slot img{max-height:220px}.card-link{display:inline-flex;align-items:center;min-height:44px;font-weight:800}.btn-row{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 18px;border-radius:10px;font-weight:800}.btn-primary{background:linear-gradient(135deg,#0052CC 0%,#0033A0 50%,#002066 100%);color:#fff}.btn-primary:hover{color:#fff;filter:brightness(1.05)}.btn-secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.page-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.page-card{border:1px solid var(--border);border-radius:12px;padding:16px;background:#fff;position:relative;overflow:hidden}.page-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--bright)}.page-card:nth-child(even)::before{background:var(--deep)}.page-card h3{font-size:16px}.page-card p{font-size:14px;color:var(--muted);margin:0 0 10px}
.number-list{display:grid;gap:12px}.number-row{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:center;border-top:1px solid var(--border);padding:14px 0}.number-row:last-child{border-bottom:1px solid var(--border)}.number{font-size:30px;font-weight:900;color:var(--brand);line-height:1}.number-row p{margin:2px 0 0;color:var(--muted)}.number-row a{font-weight:800;min-height:44px;display:inline-flex;align-items:center}
.six-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.tag-card{border:1px solid var(--border);background:var(--deep-bg);border-radius:12px;padding:18px}.shelf-list{display:grid;gap:10px}.shelf-item{display:grid;grid-template-columns:90px 1fr auto;gap:18px;align-items:center;padding:15px 18px;border:1px solid var(--border);background:#fff;border-radius:12px}.shelf-kicker{font-weight:900;color:var(--brand);font-size:13px}.shelf-item p{margin:2px 0;color:var(--muted);font-size:14px}
.rank-list{display:grid;gap:10px}.rank-item{display:grid;grid-template-columns:76px 1fr;gap:16px;align-items:start;padding:16px 0;border-bottom:1px solid var(--border)}.rank-no{font-size:42px;font-weight:950;color:var(--brand);line-height:1}.status-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.status-card{border-radius:12px;border:1px solid var(--border);padding:18px;background:var(--deep-bg)}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--brand);display:inline-block;margin-right:7px}
.long-strip{display:grid;grid-template-columns:160px 1fr;gap:24px;border-top:1px solid var(--border);padding:24px 0}.long-strip:last-child{border-bottom:1px solid var(--border)}.step-list{display:grid;gap:16px}.step{display:grid;grid-template-columns:54px 1fr;gap:16px;align-items:start}.step-no{width:46px;height:46px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:900}.editor-note{border-left:4px solid var(--brand);padding:4px 0 4px 18px;color:var(--muted)}.editor-note strong{color:var(--title)}
.article-copy{max-width:860px}.article-copy p{margin:0 0 18px}.article-copy h2{margin-top:38px}.notice{border:1px solid var(--border);background:var(--deep-bg);border-radius:12px;padding:18px;color:var(--muted)}.faq{display:grid;gap:14px}.faq-item{border:1px solid var(--border);background:#fff;border-radius:12px;padding:18px 20px}.faq-item h2{font-size:18px}.faq-item p{margin:0;color:var(--muted)}
.app-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;align-items:center}.icon-lockup{display:flex;align-items:center;gap:14px;margin-bottom:16px}.icon-lockup img{width:64px;height:64px;object-fit:contain;border-radius:14px}.icon-fallback{width:64px;height:64px;border-radius:14px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:950;font-size:21px}
.site-footer{background:#0A1628;color:#A0AEC0;padding:42px 0 24px}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px;color:#fff}.footer-brand strong{font-size:20px}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:30px}.footer-col h2{font-size:15px;color:#fff;margin-bottom:10px}.footer-col a{display:block;color:#CBD5E0;min-height:36px}.footer-col a:hover{color:#fff}.footer-note{margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.footer-note p{margin:5px 0}
.overlay{position:fixed;inset:0;background:rgba(10,22,40,.42);z-index:1090;opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;top:calc(var(--spine-h) + var(--mast-h));left:0;right:0;z-index:1100;visibility:hidden;pointer-events:none;transform:translateY(-10px);opacity:0;transition:.18s ease}.drawer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.drawer-inner{max-height:50vh;overflow:auto;background:#fff;border:1px solid var(--border);border-top:0;border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:18px}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:12px;margin-bottom:14px}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--title)}.drawer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.drawer-group h2{font-size:14px;color:var(--brand);margin-bottom:9px}.drawer-link{display:block;padding:8px 0;border-bottom:1px solid rgba(0,51,160,.08)}.drawer-link strong{display:block;color:var(--title);font-size:14px}.drawer-link span{display:block;color:var(--soft);font-size:12px;line-height:1.55;margin-top:2px}
.search-layer{position:fixed;top:calc(var(--spine-h) + var(--mast-h));left:0;right:0;z-index:1110;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.18s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{background:#fff;border:1px solid var(--border);border-top:0;border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;justify-content:space-between;gap:14px;align-items:center}.search-head h2{font-size:18px;margin:0}.search-box{margin:14px 0;border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--soft);background:var(--deep-bg)}.preset-links{display:flex;flex-wrap:wrap;gap:8px}.preset-links a{border:1px solid var(--border);background:#fff;border-radius:9px;min-height:44px;display:inline-flex;align-items:center;padding:0 13px;font-weight:700}.mobile-nav{display:none}
@media(max-width:900px){.page-head,.app-grid{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid,.drawer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.page-head .media-slot{max-width:620px}}
@media(max-width:720px){:root{--tabs-h:0px}.tabs{display:none}.site-main{padding-top:calc(var(--spine-h) + var(--mast-h));padding-bottom:70px}.shell{width:min(var(--max),calc(100% - 32px));padding:26px 0 54px}.spine-inner,.mast-inner,.footer-inner,.drawer-inner,.search-card{width:calc(100% - 32px)}.mast-inner{grid-template-columns:minmax(76px,1fr) auto minmax(76px,1fr);gap:6px}.brand-link img{max-width:108px;height:30px}.brand-fallback{font-size:20px}.mast-menu{padding:7px 11px}.mast-action{padding:0 8px}.page-cards,.grid-3,.grid-2,.six-grid,.status-grid,.grid-4{grid-template-columns:1fr}.number-row{grid-template-columns:54px 1fr}.number-row a{grid-column:2}.shelf-item{grid-template-columns:70px 1fr}.shelf-item>a{grid-column:2}.long-strip{grid-template-columns:1fr;gap:8px}.drawer-inner{width:100%;max-height:66vh;border-left:0;border-right:0;border-radius:0 0 12px 12px}.drawer-groups{grid-template-columns:1fr 1fr;gap:16px}.search-card{width:calc(100% - 20px);background:var(--deep-bg)}.footer-grid{grid-template-columns:1fr 1fr}.mobile-nav{position:fixed;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);z-index:1080;display:grid;grid-template-columns:repeat(5,1fr)}.mobile-nav a{min-height:50px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;font-weight:800}.mobile-nav a.current{background:var(--brand);color:#fff}}
@media(max-width:460px){.drawer-groups,.footer-grid{grid-template-columns:1fr}.footer-col a{min-height:32px}.page-head{gap:20px}.media-slot.banner{min-height:170px}.media-slot{min-height:180px}}