:root{--bg:#070b18;--bg-soft:#0c1326;--panel:hsla(0,0%,100%,.04);--panel-strong:hsla(0,0%,100%,.07);--border:hsla(0,0%,100%,.09);--text:#e8eefc;--text-dim:#9fb0d0;--text-mute:#6b7da3;--cyan:#22d3ee;--sky:#38bdf8;--blue:#4f7cff;--indigo:#7c5cff;--glow:0 0 0 1px rgba(56,189,248,.18),0 8px 40px rgba(34,211,238,.08)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}body{min-height:100vh;background-image:radial-gradient(900px 500px at 12% -8%,rgba(34,211,238,.12),transparent 60%),radial-gradient(900px 600px at 88% 0,rgba(124,92,255,.12),transparent 60%),linear-gradient(180deg,#070b18,#060912);background-attachment:fixed}a{color:var(--sky);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1080px;margin:0 auto;padding:0 24px}.wide{max-width:1280px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:rgba(7,11,24,.72);border-bottom:1px solid var(--border)}.site-header .inner{justify-content:space-between;height:64px}.brand,.site-header .inner{display:flex;align-items:center}.brand{gap:12px;font-weight:700;font-size:18px}.brand .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--indigo));box-shadow:0 0 16px rgba(34,211,238,.6)}.nav a{color:var(--text-dim);margin-left:22px;font-size:14px}.nav a:hover{color:var(--text);text-decoration:none}.hero{padding:72px 0 48px}.hero h1{font-size:44px;line-height:1.15;margin:0 0 16px;background:linear-gradient(120deg,#fff 10%,var(--cyan) 55%,var(--indigo) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.5px}.hero p{color:var(--text-dim);font-size:18px;max-width:680px;line-height:1.7}.grid{display:grid;grid-gap:20px;gap:20px}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}@media (max-width:860px){.grid.cols-2,.grid.cols-3{grid-template-columns:1fr}}.card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:22px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.card:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.4);box-shadow:var(--glow)}.card h3{margin:0 0 8px;font-size:19px}.card .meta{color:var(--text-mute);font-size:13px;margin-bottom:10px}.card p{color:var(--text-dim);font-size:14px;line-height:1.65;margin:0}.article{max-width:760px;margin:0 auto;padding:40px 24px 80px}.article h1{font-size:36px;line-height:1.25;margin:18px 0 12px}.article .lead{color:var(--text-dim);font-size:17px;line-height:1.7;margin-bottom:28px}.prose{font-size:17px;line-height:1.85;color:#d7e0f4}.prose h2{font-size:26px;margin:36px 0 14px;color:#fff}.prose h3{font-size:21px;margin:28px 0 10px;color:#fff}.prose p{margin:16px 0}.prose ol,.prose ul{margin:16px 0;padding-left:24px}.prose li{margin:8px 0}.prose code{background:hsla(0,0%,100%,.08);padding:2px 7px;border-radius:6px;font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.prose pre{background:#060a16;border:1px solid var(--border);border-radius:12px;padding:16px;overflow:auto;margin:18px 0}.prose pre code{background:none;padding:0}.prose blockquote{border-left:3px solid var(--cyan);padding-left:16px;margin:18px 0;color:var(--text-dim);font-style:italic}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;color:var(--cyan);background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.25)}.section-title{font-size:14px;letter-spacing:2px;text-transform:uppercase;color:var(--text-mute);margin:48px 0 16px}.footer{border-top:1px solid var(--border);padding:32px 0;color:var(--text-mute);font-size:13px;margin-top:64px}.btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;padding:10px 18px;border-radius:12px;font-size:14px;font-weight:600;border:1px solid var(--border);background:var(--panel-strong);color:var(--text);transition:all .15s ease}.btn:hover{border-color:rgba(56,189,248,.5);text-decoration:none}.btn.primary{background:linear-gradient(120deg,var(--blue),var(--indigo));border-color:transparent;color:#fff;box-shadow:0 8px 24px rgba(79,124,255,.3)}.btn.primary:hover{filter:brightness(1.08)}.field{margin-bottom:18px}.field label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:7px}.input,.select,.textarea{width:100%;padding:11px 14px;border-radius:12px;background:var(--bg-soft);border:1px solid var(--border);color:var(--text);font-size:14px;outline:none;transition:border-color .15s}.input:focus,.select:focus,.textarea:focus{border-color:var(--sky)}.textarea{min-height:110px;resize:vertical;font-family:inherit}.muted{color:var(--text-mute)}.center-narrow{max-width:420px;margin:12vh auto;text-align:center}.toast{padding:10px 14px;border-radius:10px;font-size:13px;margin-top:12px}.toast.ok{background:rgba(34,197,94,.12);color:#6ee7a8;border:1px solid rgba(34,197,94,.3)}.toast.err{background:hsla(0,91%,71%,.12);color:#fca5a5;border:1px solid hsla(0,91%,71%,.3)}.admin-shell{display:flex;min-height:100vh}.sidebar{width:250px;flex-shrink:0;height:100vh;position:-webkit-sticky;position:sticky;top:0;background:var(--bg-soft);border-right:1px solid var(--border);padding:22px 14px;display:flex;flex-direction:column}.sidebar .brand{font-size:19px;margin-bottom:8px;padding:0 10px}.nav-group{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-mute);padding:18px 12px 8px}.navlink{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;color:var(--text-dim);font-size:14px;margin-bottom:2px;transition:all .15s}.navlink:hover{background:var(--panel);color:var(--text);text-decoration:none}.navlink.active{background:linear-gradient(90deg,rgba(56,189,248,.18),rgba(124,92,255,.05));color:#fff;box-shadow:inset 2px 0 0 var(--cyan)}.navlink .ic{width:17px;height:17px;opacity:.85;flex-shrink:0}.sidebar-foot{margin-top:auto;padding:14px 6px 0;border-top:1px solid var(--border)}.admin-main{flex:1 1;min-width:0;padding:26px 36px 64px}.hero-admin{background:linear-gradient(120deg,rgba(34,211,238,.1),rgba(124,92,255,.07));border:1px solid var(--border);border-radius:20px;padding:24px 28px;margin-bottom:22px}.hero-admin h2{margin:0 0 6px;font-size:22px}.hero-admin p{margin:0;color:var(--text-dim);font-size:14px;line-height:1.6}.quick-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.section-title.sm{margin:30px 0 14px}.switch{position:relative;width:46px;height:26px;border-radius:999px;border:1px solid var(--border);background:var(--panel-strong);cursor:pointer;transition:all .18s;flex-shrink:0}.switch.on{background:linear-gradient(120deg,var(--blue),var(--indigo));border-color:transparent}.switch:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;transition:all .18s}.switch.on:after{left:22px}.kv{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-bottom:1px solid var(--border);font-size:14px}.kv:last-child{border-bottom:none}.kv .k{color:var(--text-dim)}.kv .v{color:var(--text);font-family:ui-monospace,Menlo,monospace;font-size:13px}