:root{color-scheme:dark;--bg: #0b1220;--panel: #121a2b;--panel-2: #18233a;--ink: #e8eefc;--muted: #93a0b8;--line: #243251;--accent: #3b82f6;--accent-2: #22c55e;--danger: #ef4444;--warn: #f59e0b;--radius: 14px;--shadow: 0 16px 50px rgba(0, 0, 0, .35);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(1200px 600px at 10% -10%,rgba(59,130,246,.18),transparent 50%),radial-gradient(900px 500px at 100% 0%,rgba(34,197,94,.12),transparent 45%),var(--bg);color:var(--ink)}body{min-height:100vh}#app{max-width:1100px;margin:0 auto;padding:32px 20px 48px}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-badge{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#3b82f6,#22c55e);display:grid;place-items:center;font-weight:700;box-shadow:var(--shadow)}.brand h1{margin:0;font-size:22px;font-weight:650;letter-spacing:.2px}.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}@media(max-width:820px){.grid{grid-template-columns:1fr}}.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card h2{margin:0 0 8px;font-size:17px}.card .desc{margin:0 0 16px;color:var(--muted);font-size:13px;line-height:1.55}label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}input[type=text],input[type=password]{width:100%;border:1px solid var(--line);background:#0a1020;color:var(--ink);border-radius:10px;padding:10px 12px;font-size:15px;outline:none}input:focus{border-color:var(--accent)}.row{display:flex;gap:10px;align-items:end}.row>*{flex:1}button{border:0;border-radius:10px;padding:11px 14px;font-size:14px;font-weight:600;cursor:pointer;background:var(--accent);color:#fff}button.secondary{background:transparent;border:1px solid var(--line);color:var(--ink)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}.hint{margin-top:10px;font-size:12px;color:var(--muted)}.status-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:#ffffff08;border-radius:999px;padding:6px 12px;font-size:12px;color:var(--muted)}.pill strong{color:var(--ink);font-size:14px;letter-spacing:1px}.dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}.dot.ok{background:var(--accent-2)}.dot.warn{background:var(--warn)}.dot.bad{background:var(--danger)}.stage{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#05080f;min-height:360px;display:grid;place-items:center}.stage video{width:100%;max-height:70vh;background:#000;display:block}.stage .placeholder{color:var(--muted);text-align:center;padding:40px 20px;line-height:1.6}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.code-box{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:28px;letter-spacing:4px;font-weight:700;padding:14px 16px;border-radius:12px;background:#0a1020;border:1px dashed var(--line);text-align:center;user-select:all}.field{margin-bottom:12px}.stack{display:grid;gap:14px}.footer{margin-top:22px;color:var(--muted);font-size:12px;line-height:1.6}kbd{background:#0a1020;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px;font-size:12px}.log-panel{margin-top:12px;background:#070b14;border:1px solid var(--line);border-radius:12px;max-height:280px;overflow:auto;padding:10px 12px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;line-height:1.55;white-space:pre-wrap;word-break:break-all;color:var(--muted)}.log-line{margin:0 0 2px}.log-info{color:#9db0d0}.log-ok{color:#4ade80}.log-warn{color:#fbbf24}.log-err{color:#f87171}.diag-summary{margin-top:8px;font-size:13px}