:root{--bg:#F3F6F9;--panel:#fff;--soft:#E8EEF5;--ink:#0B1220;--body:#1E293B;--muted:#475569;--assist:#64748B;--blue:#2563EB;--lightblue:#60A5FA;--deepblue:#1D4ED8;--lime:#65A30D;--slate:#334155;--line:rgba(37,99,235,.16);--shadow:0 14px 36px rgba(11,18,32,.08);--radius:14px;--top:120px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-top{position:fixed;inset:0 0 auto;z-index:80;background:#fff;box-shadow:0 1px 0 rgba(15,23,42,.06)}.signal-line{height:18px;background:var(--slate);color:#fff;font-size:11px;line-height:18px}.signal-inner{display:flex;align-items:center;justify-content:space-between;height:18px}.signal-brand{font-weight:700;letter-spacing:.02em}.signal-search{border:0;background:transparent;color:#fff;height:18px;line-height:18px;padding:0 2px;font-size:11px}.machine-bar{height:62px;background:#fff;border-bottom:1px solid var(--line)}.machine-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-mark{display:block;width:auto;height:32px;max-width:160px;object-fit:contain}.brand-fallback{font-size:22px;font-weight:900;color:var(--ink);letter-spacing:-.03em}.drawer-open,.app-link{min-height:44px;border-radius:10px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;font-weight:800}.drawer-open{justify-self:center;border:1px solid var(--line);background:#fff;color:var(--blue)}.app-link{justify-self:end;background:linear-gradient(135deg,#60A5FA 0%,#2563EB 52%,#1D4ED8 100%);color:#fff}.tab-bar{height:40px;background:#F8FAFC;border-bottom:1px solid var(--line)}.tab-inner{height:40px;display:flex;align-items:center;gap:6px}.tab-inner a{height:30px;display:flex;align-items:center;padding:0 13px;border-radius:8px;color:var(--slate);font-weight:700;font-size:14px}.tab-inner a:hover,.tab-inner a:focus-visible{background:var(--soft);outline:none}.tab-inner a.active{background:var(--blue);color:#fff}.site-main{padding-top:calc(var(--top) + 28px);min-height:70vh}.page{padding:0 0 72px}.hero,.section-card,.content-card,.legal-block,.faq-item,.status-card,.step-card,.topic-card,.file-row,.author-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{padding:26px;margin-bottom:24px}.hero-media,.media-slot{background:#EEF2F7;border:1px solid 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var(--blue)}.btn-primary{background:linear-gradient(135deg,#60A5FA 0%,#2563EB 52%,#1D4ED8 100%);color:#fff}.btn-secondary{background:#fff;color:var(--blue)}.btn:hover,.btn:focus-visible{transform:translateY(-1px);box-shadow:0 8px 20px rgba(37,99,235,.18);outline:3px solid rgba(96,165,250,.28);outline-offset:2px}.section{margin:24px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head h2{margin:0;color:var(--ink);font-size:24px;line-height:1.3}.section-head p{margin:0;color:var(--assist);max-width:620px}.section-card{padding:22px}.key-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.key-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;min-height:130px;transition:.2s}.key-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.key-card .dot{width:9px;height:9px;border-radius:50%;background:var(--blue);display:inline-block;margin-right:7px}.key-card:nth-child(2n) .dot{background:var(--lime)}.key-card h3{margin:7px 0 6px;color:var(--ink);font-size:17px}.key-card p{margin:0 0 10px;color:var(--muted);font-size:14px}.key-card a{color:var(--blue);font-weight:800;font-size:14px}.number-list{display:grid;gap:10px}.number-row{display:grid;grid-template-columns:58px 1fr auto;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid rgba(51,65,85,.12)}.number-row:last-child{border-bottom:0}.number-row b{font-size:26px;color:var(--blue);font-variant-numeric:tabular-nums}.number-row strong{color:var(--ink)}.number-row a{color:var(--blue);font-weight:800}.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.content-card{padding:16px}.content-card h3,.topic-card h3,.author-card h3{margin:4px 0 8px;color:var(--ink)}.content-card p,.topic-card p,.author-card p{margin:0;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}.quad-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.topic-card{padding:18px}.file-list{display:grid;gap:10px}.file-row{padding:15px 18px;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;box-shadow:none}.file-row strong{display:block;color:var(--ink)}.file-row span{display:block;color:var(--muted);font-size:14px}.file-row a{color:var(--blue);font-weight:800}.big-number-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.big-number{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;min-height:150px}.big-number b{font-size:34px;color:var(--blue);display:block;line-height:1}.big-number h3{margin:12px 0 6px;color:var(--ink);font-size:17px}.big-number p{margin:0;color:var(--muted);font-size:14px}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.status-card{padding:18px;box-shadow:none}.status-label{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;color:var(--deepblue);background:#EFF6FF;border:1px solid #BFDBFE;border-radius:8px;padding:4px 8px}.status-card h3{margin:12px 0 8px;color:var(--ink)}.status-card p{margin:0;color:var(--muted)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step-card{padding:18px;box-shadow:none}.step-card b{display:inline-flex;width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;align-items:center;justify-content:center}.step-card h3{margin:10px 0 6px;color:var(--ink)}.step-card p{margin:0;color:var(--muted)}.prose{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.prose h2{margin:28px 0 10px;color:var(--ink);font-size:22px}.prose 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span{font-size:13px;color:#9FB8E8}.footer-mark{height:30px;width:auto;object-fit:contain}.footer-brand p{color:#AFC3E9;font-size:14px}.footer-grid h2{font-size:15px;margin:0 0 10px;color:#fff}.footer-grid a{display:block;color:#C7D7F5;padding:4px 0;font-size:14px}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(214,228,255,.14);margin-top:28px;padding-top:18px;color:#9FB8E8;font-size:13px}.site-overlay{position:fixed;inset:0;background:rgba(11,18,32,.48);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.open{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;top:0;right:0;width:min(390px,86vw);height:100vh;background:#F8FAFC;z-index:100;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility 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span{color:var(--assist);font-size:13px}.search-layer{position:fixed;left:0;right:0;top:80px;z-index:95;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.search-layer.open{visibility:visible;opacity:1;pointer-events:auto}.search-card{width:min(780px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.search-head strong{color:var(--ink)}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;height:48px;border:1px solid rgba(51,65,85,.2);border-radius:8px;padding:0 14px;outline:none}.search-card input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--line);border-radius:8px;color:var(--blue);font-weight:800}.mobile-nav{display:none}.inline-link{color:var(--blue);font-weight:800}.muted{color:var(--muted)}.badge-row{display:flex;align-items:center;gap:14px}.badge-icon{width:64px;height:64px;object-fit:contain}.app-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;align-items:center}.content-list{display:grid;gap:12px}.content-list article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.content-list h2,.content-list h3{margin:0 0 6px;color:var(--ink)}.content-list p{margin:0;color:var(--muted)}
@media(max-width:960px){.card-grid{grid-template-columns:repeat(2,1fr)}.big-number-grid{grid-template-columns:repeat(3,1fr)}.status-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:2fr repeat(2,1fr)}.key-grid{grid-template-columns:repeat(2,1fr)}.author-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){:root{--top:80px}.shell{width:min(100% - 32px,1180px)}.tab-bar{display:none}.site-main{padding-top:calc(var(--top) + 20px);padding-bottom:54px}.machine-inner{grid-template-columns:1fr auto 1fr;gap:8px}.brand-mark{height:28px;max-width:112px}.brand-fallback{font-size:19px}.drawer-open,.app-link{padding:0 10px;font-size:13px;min-width:64px}.hero{padding:18px}.hero-media{min-height:140px}.key-grid,.card-grid,.split,.quad-grid,.big-number-grid,.status-grid,.steps,.author-grid,.app-layout{grid-template-columns:1fr}.media-slot{height:200px}.number-row{grid-template-columns:48px 1fr}.number-row a{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.site-footer{padding-bottom:88px}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:50px;font-size:13px;font-weight:800;color:var(--slate)}.mobile-nav a.active{background:var(--blue);color:#fff}.search-layer{inset:0;background:#E8EEF5;top:0;padding:18px 0;overflow:auto}.search-card{margin-top:0;min-height:calc(100vh - 36px);border-radius:0;box-shadow:none;background:#F3F6F9}.section-head{align-items:flex-start;flex-direction:column}.phone-slot{min-height:300px}.file-row{grid-template-columns:1fr}.file-row a{justify-self:start}.site-drawer{width:86vw}.footer-grid{gap:20px}.signal-line{overflow:hidden}.signal-brand{white-space:nowrap}}
@media(max-width:420px){.shell{width:calc(100% - 32px)}.brand-mark{max-width:96px}.drawer-open,.app-link{min-width:58px;padding:0 8px}.footer-grid{grid-template-columns:1fr}.key-card{min-height:0}.hero-actions .btn{width:100%}}