:root{color-scheme:light;--bg: #f4f6f8;--panel: #ffffff;--ink: #1c2430;--muted: #5b6775;--line: #d8dee6;--accent: #0f6e56;--accent-ink: #ffffff;--warn: #9a6700;--danger: #b42318;--ok: #067647;--offline: #667085;--shadow: 0 1px 2px rgba(16, 24, 40, .06);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.45;font-size:15px;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}button,input,select{font:inherit}a{color:var(--accent)}.app-shell{max-width:1100px;margin:0 auto;padding:24px 20px 48px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.brand{display:flex;flex-direction:column;gap:2px}.brand strong{font-size:1.15rem;letter-spacing:.02em}.brand span{color:var(--muted);font-size:.85rem}.user-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.9rem}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:18px}.panel+.panel{margin-top:16px}.panel h2{margin:0 0 12px;font-size:1rem;font-weight:650}.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.stack{display:grid;gap:10px}label.field{display:grid;gap:6px;color:var(--muted);font-size:.85rem}label.field input,label.field select{color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px}.btn{border:1px solid transparent;border-radius:8px;padding:9px 14px;cursor:pointer;background:var(--accent);color:var(--accent-ink)}.btn:hover{filter:brightness(.96)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--ink);border-color:var(--line)}.btn.danger{background:#fff;color:var(--danger);border-color:#f3c0bc}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:28px 24px}.login-card h1{margin:0 0 6px;font-size:1.35rem}.login-card p.lead{margin:0 0 18px;color:var(--muted)}.table-wrap{overflow-x:auto}table.devices{width:100%;border-collapse:collapse;font-size:.92rem}table.devices th,table.devices td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}table.devices th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 10px;font-size:.78rem;border:1px solid var(--line);background:#f8fafc;color:var(--muted)}.badge.ok{color:var(--ok);border-color:#abefc6;background:#ecfdf3}.badge.warn{color:var(--warn);border-color:#f9db8f;background:#fffaeb}.badge.danger{color:var(--danger);border-color:#fecdca;background:#fef3f2}.mono{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:.86rem}.copy-box{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:6px}.copy-box code{background:#f2f4f7;border-radius:6px;padding:6px 8px}.flash{margin-bottom:12px;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:#fff}.flash.error{border-color:#fecdca;background:#fef3f2;color:var(--danger)}.flash.ok{border-color:#abefc6;background:#ecfdf3;color:var(--ok)}.token-result{margin-top:10px;padding:10px 12px;background:#f8fafc;border:1px dashed var(--line);border-radius:8px;word-break:break-all}.empty{color:var(--muted);padding:18px 4px}.muted{color:var(--muted);font-size:.85rem}