:root{--bg:#0a0e1a;--bg2:#0e1322;--card:#111729;--card2:#161d33;--line:#1e2740;--line2:#2c3656;--text:#e8ecf5;--t2:#98a3bd;--t3:#69748e;--t4:#4d5670;--ind:#6366f1;--ind2:#818cf8;--ind3:#a5b4fc;--em:#34d399;--rose:#fb7185;--amber:#fbbf24;--blue:#60a5fa;--mono:'JetBrains Mono','Noto Sans SC',monospace;--sans:'Inter','Noto Sans SC',system-ui,sans-serif}
[data-theme=light]{--bg:#f8fafc;--bg2:#f1f5f9;--card:#fff;--card2:#f8fafc;--line:#e2e8f0;--line2:#cbd5e1;--text:#1e293b;--t2:#475569;--t3:#64748b;--t4:#94a3b8;--ind:#4f46e5;--ind2:#6366f1;--ind3:#4338ca;--em:#059669;--rose:#e11d48;--amber:#d97706;--blue:#2563eb}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--sans);background:var(--bg);color:var(--text);font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:var(--ind2);text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}
.topbar{background:rgba(10,14,26,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:11px 24px;display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:100;border-bottom:1px solid var(--line)}
.topbar-logo{display:flex;align-items:center;gap:9px;color:var(--text);font-weight:700;font-size:15px;text-decoration:none}
.topbar-logo .ic{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,var(--ind),var(--ind2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:14px}
.topbar-nav{display:flex;gap:28px;align-items:center;margin-left:20px}
.topbar-nav a{color:var(--t2);font-size:13px;font-weight:500;transition:color .15s;display:inline-flex;align-items:center;height:28px;line-height:1;text-decoration:none;white-space:nowrap;flex-shrink:0}
.topbar-nav a:hover{color:var(--ind2);text-decoration:none}.topbar-nav .nv-dd{position:relative;display:inline-flex;align-items:center;flex-shrink:0}.topbar-nav .nv-dd::after{content:"";position:absolute;top:100%;left:0;right:0;height:12px}.topbar-nav .nv-dd-t{display:inline-flex;align-items:center;gap:5px;height:28px;font-size:13px;color:var(--t2);transition:color .2s;cursor:pointer;text-decoration:none;line-height:1;white-space:nowrap}.topbar-nav .nv-dd:hover .nv-dd-t,.topbar-nav .nv-dd:focus-within .nv-dd-t{color:var(--ind2)}.topbar-nav .nv-dd-t .chev{width:11px;height:11px;transition:transform .2s;opacity:.55;flex-shrink:0}.topbar-nav .nv-dd:hover .nv-dd-t .chev{transform:rotate(180deg)}.topbar-nav .nv-dd-m{position:absolute;top:calc(100% + 10px);left:0;transform:translateY(6px);min-width:200px;background:var(--card);border:1px solid var(--line2);border-radius:12px;padding:7px;box-shadow:0 20px 50px rgba(0,0,0,.5);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s,transform .18s,visibility .18s;z-index:100}.topbar-nav .nv-dd:hover .nv-dd-m,.topbar-nav .nv-dd:focus-within .nv-dd-m{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.topbar-nav .nv-dd-m a{display:block;padding:8px 12px;border-radius:8px;font-size:13px;color:var(--t3);white-space:nowrap;transition:background .15s,color .15s;font-weight:400}.topbar-nav .nv-dd-m a:hover{background:var(--bg2);color:var(--ind2)}[data-theme=light] .topbar{background:rgba(248,250,252,.92)}[data-theme=light] .topbar-nav .nv-dd-m{background:#fff;box-shadow:0 20px 50px rgba(15,23,42,.14)}[data-theme=light] .topbar-nav .nv-dd-m a:hover{background:#f1f5f9}@media(max-width:768px){.topbar-nav.mnav-open .nv-dd-m{position:static;opacity:1;visibility:visible;pointer-events:auto;transform:none;background:transparent;border:none;box-shadow:none;padding:4px 0 4px 12px;min-width:0}.topbar-nav.mnav-open .nv-dd{display:block}.topbar-nav.mnav-open .nv-dd::after{display:none}}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.topbar-badge{background:rgba(99,102,241,.12);color:var(--ind2);padding:3px 9px;border-radius:4px;font-size:10px;font-weight:600;font-family:var(--mono)}
.tgl-btn{padding:5px 10px;border-radius:6px;font-size:12px;font-weight:600;font-family:var(--mono);border:1px solid var(--line2);color:var(--t2);background:transparent;cursor:pointer;transition:all .2s;line-height:1.2}.toggles{display:flex;align-items:center;gap:6px}
.topbar-btn{padding:8px 18px;border-radius:8px;font-size:13px;font-weight:600;background:var(--ind);color:#fff!important;transition:all .2s;box-shadow:0 4px 14px rgba(99,102,241,.3);text-decoration:none}
.topbar-btn:hover{background:var(--ind2)}
.footer{background:var(--bg2);border-top:1px solid var(--line);padding:40px 24px 24px;margin-top:60px;position:relative;z-index:51}
.footer-inner{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer h4{font-size:13px;font-weight:700;color:var(--text);margin-bottom:10px}
.footer a{display:block;color:var(--t3);font-size:13px;margin-bottom:6px;transition:.15s}
.footer a:hover{color:var(--ind2)}
.footer-brand{font-size:12px;color:var(--t4);margin-top:12px;line-height:1.6}
.mnav-btn{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:4px;align-items:center}@media(max-width:768px){.footer-inner{grid-template-columns:1fr 1fr}.mnav-btn{display:flex}.topbar-nav{display:none}.topbar-nav.mnav-open{display:flex;position:fixed;top:49px;left:0;right:0;flex-direction:column;background:var(--bg2);padding:14px 20px;gap:10px;border-bottom:1px solid var(--line);z-index:99;box-shadow:0 4px 20px rgba(0,0,0,.3)}.topbar-nav.mnav-open a{font-size:14px}}