:root{
  --bg:#0b0f18; --bg2:#111827; --panel:rgba(20,27,42,.86); --line:rgba(255,255,255,.09);
  --txt:#e8eefc; --muted:#8b9ab8; --accent:#37d67a; --accent2:#4f8cff; --danger:#ff5d61; --warn:#ffb020;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:
  radial-gradient(1200px 600px at 85% -10%,rgba(79,140,255,.16),transparent 60%),
  radial-gradient(900px 500px at 5% 0%,rgba(55,214,122,.12),transparent 55%),
  var(--bg);
  color:var(--txt);font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  min-height:100%;-webkit-font-smoothing:antialiased}
[v-cloak]{display:none}
a{color:var(--accent2);text-decoration:none}
button{font:inherit;cursor:pointer;border:1px solid var(--line);background:#1b2333;color:var(--txt);
  padding:8px 14px;border-radius:10px;transition:.16s ease;white-space:nowrap}
button:hover:not(:disabled){background:#243049;border-color:rgba(255,255,255,.2);transform:translateY(-1px)}
button:disabled{opacity:.5;cursor:not-allowed}
button.primary{background:linear-gradient(135deg,#2fbf6c,#22a35a);border-color:transparent;color:#04180d;font-weight:700;box-shadow:0 8px 22px rgba(47,191,108,.30)}
button.primary:hover{filter:brightness(1.06)}
button.danger{background:rgba(255,93,97,.14);border-color:rgba(255,93,97,.45);color:#ff9a9d}
button.ghost{background:transparent}
button.big{padding:12px 26px;font-size:15px;border-radius:12px}
input,select{font:inherit;color:var(--txt);background:#131a28;border:1px solid var(--line);border-radius:10px;padding:9px 12px;outline:none;width:100%}
input:focus,select:focus{border-color:rgba(79,140,255,.65);box-shadow:0 0 0 3px rgba(79,140,255,.16)}
label{color:var(--muted);font-size:12.5px;display:block;margin-bottom:6px;letter-spacing:.02em}
.badge{font-size:12px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted)}
.badge.ok{color:#9df3c0;border-color:rgba(55,214,122,.4);background:rgba(55,214,122,.12)}
.badge.bad{color:#ffb3b5;border-color:rgba(255,93,97,.4);background:rgba(255,93,97,.12)}
.badge.warn{color:#ffd79a;border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.12)}

/* layout */
.topbar{display:flex;align-items:center;gap:18px;padding:14px 26px;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(11,15,24,.72)}
.brand{display:flex;align-items:center;gap:12px;min-width:230px}
.logo{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:15px;
  background:linear-gradient(135deg,#2fbf6c,#4f8cff);color:#04180d;font-weight:900}
.brand h1{margin:0;font-size:16px;letter-spacing:.01em}
.brand small{color:var(--muted);font-size:11.5px}
.tabs{display:flex;gap:6px;margin:0 auto;background:rgba(255,255,255,.04);padding:4px;border-radius:12px;border:1px solid var(--line)}
.tabs button{border:1px solid transparent;background:transparent;border-radius:9px;padding:7px 16px;color:var(--muted)}
.tabs button.active{background:rgba(79,140,255,.18);color:#cfe0ff;border-color:rgba(79,140,255,.35)}
.tabs button b{font-size:11px;background:rgba(255,255,255,.14);border-radius:999px;padding:1px 6px;margin-left:4px}
.top-actions{display:flex;align-items:center;gap:8px}
main{padding:22px 26px 60px;max-width:1240px;margin:0 auto}
.panel{animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;backdrop-filter:blur(8px)}
.card+.card{margin-top:16px}
.card h2{margin:0 0 4px;font-size:15px;display:flex;align-items:center;gap:8px}
.card h2 .step{width:22px;height:22px;border-radius:7px;background:rgba(79,140,255,.2);border:1px solid rgba(79,140,255,.35);
  display:grid;place-items:center;font-size:12px;color:#bcd3ff}
.hint{color:var(--muted);font-size:12.5px;margin:6px 0 14px}

/* capture sources */
.surface-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:6px}
.surface{background:#131a28;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:left;color:var(--txt)}
.surface .ico{font-size:20px;display:block;margin-bottom:6px}
.surface strong{display:block;font-size:13.5px}
.surface span.d{color:var(--muted);font-size:11.5px}
.surface.on{border-color:rgba(55,214,122,.6);background:rgba(55,214,122,.10);box-shadow:0 0 0 3px rgba(55,214,122,.10)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.switch{display:flex;align-items:center;gap:10px;margin:0 0 10px;color:var(--txt);font-size:13.5px;cursor:pointer}
.switch input{width:auto}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:18px}
.row .grow{flex:1;min-width:220px}
.file-btn{position:relative;overflow:hidden;border:1px dashed var(--line);border-radius:10px;padding:9px 14px;color:var(--muted);font-size:13px}
.file-btn input{position:absolute;inset:0;opacity:0;cursor:pointer}

/* studio */
.studio{display:grid;grid-template-columns:1fr;gap:16px}
.preview{position:relative;border-radius:var(--radius);overflow:hidden;background:#04060b;border:1px solid var(--line);aspect-ratio:16/9}
.preview video{width:100%;height:100%;object-fit:contain;display:block;background:#04060b}
.hud{position:absolute;left:14px;top:14px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.hud .pill{background:rgba(4,6,11,.72);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12.5px;
  display:flex;align-items:center;gap:7px;backdrop-filter:blur(6px)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--danger);box-shadow:0 0 0 0 rgba(255,93,97,.7);animation:pulse 1.4s infinite}
.dot.paused{background:var(--warn);animation:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,93,97,.55)}70%{box-shadow:0 0 0 10px rgba(255,93,97,0)}100%{box-shadow:0 0 0 0 rgba(255,93,97,0)}}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.controls .big{padding:12px 24px}
.upbar{height:4px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;flex:1;min-width:140px}
.upbar i{display:block;height:100%;background:linear-gradient(90deg,#2fbf6c,#4f8cff);transition:width .3s ease}

/* result */
.result{display:grid;gap:14px}
.result video{width:100%;border-radius:12px;background:#04060b;border:1px solid var(--line);max-height:60vh}
.meta-row{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:12.5px;align-items:center}
.alert{border-radius:12px;padding:14px 16px;font-size:13.5px;margin-bottom:16px;border:1px solid}
.alert.bad{background:rgba(255,93,97,.10);border-color:rgba(255,93,97,.35);color:#ffc9ca}
.alert.warn{background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.35);color:#ffe0ac}
.alert ul{margin:8px 0 0;padding-left:20px}

/* library */
.lib-head{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.lib-head .grow{flex:1;min-width:200px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.rec{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.18s ease}
.rec:hover{transform:translateY(-3px);border-color:rgba(79,140,255,.45);box-shadow:0 14px 34px rgba(0,0,0,.35)}
.thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#161f30,#0d1320);cursor:pointer;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb .ph{position:absolute;inset:0;display:grid;place-items:center;font-size:28px;color:#2b3a55}
.thumb .dur{position:absolute;right:8px;bottom:8px;background:rgba(4,6,11,.8);border-radius:6px;padding:2px 7px;font-size:11.5px}
.thumb .play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:.18s;background:rgba(4,6,11,.35);font-size:30px}
.thumb:hover .play{opacity:1}
.rec-body{padding:12px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.rec-title{font-size:13.6px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-sub{color:var(--muted);font-size:11.8px;display:flex;gap:10px;flex-wrap:wrap}
.rec-actions{display:flex;gap:6px;margin-top:auto}
.rec-actions button{flex:1;padding:6px 8px;font-size:12px;border-radius:8px}
.empty{text-align:center;color:var(--muted);padding:70px 20px;border:1px dashed var(--line);border-radius:var(--radius)}

/* modal */
.mask{position:fixed;inset:0;background:rgba(3,6,12,.78);backdrop-filter:blur(6px);display:grid;place-items:center;padding:24px;z-index:60}
.modal{width:min(1000px,100%);max-height:90vh;overflow:auto;background:#0e1420;border:1px solid var(--line);border-radius:16px;padding:18px}
.modal video{width:100%;border-radius:12px;background:#000;max-height:68vh}
.modal-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.modal-head h3{margin:0;font-size:15px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-foot{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px;align-items:center}

/* login */
.login-wrap{position:fixed;inset:0;display:grid;place-items:center;z-index:99;background:rgba(6,9,16,.94)}
.login-box{width:min(380px,92vw);background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.login-box h2{margin:0 0 6px;font-size:18px}
.login-box p{color:var(--muted);font-size:12.5px;margin:0 0 18px}

/* toasts */
.toasts{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:120;max-width:min(420px,92vw)}
.toast{background:#131c2b;border:1px solid var(--line);border-left:3px solid var(--accent2);border-radius:10px;padding:11px 14px;font-size:13px;
  box-shadow:0 12px 28px rgba(0,0,0,.4);animation:slide .22s ease}
.toast.err{border-left-color:var(--danger)}
.toast.ok{border-left-color:var(--accent)}
@keyframes slide{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
footer{color:var(--muted);font-size:12px;text-align:center;padding:26px 0 34px}
footer code{background:rgba(255,255,255,.07);padding:1px 6px;border-radius:5px}
@media(max-width:720px){
  .topbar{flex-wrap:wrap;gap:10px;padding:12px 14px}
  .brand{min-width:0;flex:1}
  .tabs{order:3;width:100%;margin:0;justify-content:center}
  main{padding:16px 14px 50px}
}