:root{--sidebar-w: 220px;--bg: #f9fafb;--surface: #ffffff;--surface2: #f3f4f6;--surface-hover: #eff6ff;--border: #e5e7eb;--border-strong: #d1d5db;--text: #111827;--text-muted: #6b7280;--text-faint: #9ca3af;--sidebar-bg: #111827;--sidebar-text: #d1d5db;--sidebar-text-active: #ffffff;--sidebar-hover: rgba(255,255,255,.08);--sidebar-active: rgba(59,130,246,.25);--accent: #3b82f6;--accent-hover: #2563eb;--accent-soft: #eff6ff;--success: #10b981;--success-soft: #dcfce7;--success-text: #166534;--danger: #ef4444;--danger-soft: #fee2e2;--danger-text: #991b1b;--warning: #f59e0b;--warning-soft: #fef3c7;--warning-text: #92400e;--info-soft: #dbeafe;--info-text: #1e40af;--purple-soft: #ede9fe;--purple-text: #5b21b6;--code-bg: #1e1e2e;--code-fg: #cdd6f4;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08);--shadow-lg: 0 10px 25px rgba(0,0,0,.15)}[data-theme=dark]{--bg: #0f1419;--surface: #1a1f2e;--surface2: #232938;--surface-hover: #2d3650;--border: #2a3142;--border-strong: #3a4358;--text: #e6e9ef;--text-muted: #9ca3af;--text-faint: #6b7280;--sidebar-bg: #0a0e15;--accent-soft: rgba(59,130,246,.15);--success-soft: rgba(16,185,129,.18);--success-text: #34d399;--danger-soft: rgba(239,68,68,.18);--danger-text: #f87171;--warning-soft: rgba(245,158,11,.18);--warning-text: #fbbf24;--info-soft: rgba(59,130,246,.18);--info-text: #93c5fd;--purple-soft: rgba(139,92,246,.18);--purple-text: #c4b5fd}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px}button,input,select,textarea{font-family:inherit}button{cursor:pointer}a{color:var(--accent);text-decoration:none}.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;padding:16px 0}.sidebar-header{padding:0 20px 16px;font-size:14px;font-weight:600;color:var(--sidebar-text-active);display:flex;align-items:center;gap:8px}.sidebar-header .dot{width:8px;height:8px;background:#10b981;border-radius:50%}.nav-group-label{padding:8px 20px 4px;font-size:11px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.5px}.nav-item{display:flex;align-items:center;gap:10px;padding:8px 20px;color:var(--sidebar-text);cursor:pointer;font-size:13px;border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--sidebar-hover)}.nav-item.active{background:var(--sidebar-active);color:var(--sidebar-text-active)}.nav-item svg{width:16px;height:16px;flex-shrink:0}.sidebar-footer{margin-top:auto;padding:12px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:var(--text-faint)}.sidebar-footer .row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.sidebar-footer button{background:none;border:1px solid rgba(255,255,255,.12);color:var(--sidebar-text);padding:4px 10px;border-radius:6px;font-size:12px;cursor:pointer}.sidebar-footer button:hover{background:#ffffff0f}main.content{margin-left:var(--sidebar-w);min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.topbar h2{margin:0;font-size:17px}.page{padding:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}.card h3{margin:0 0 12px;font-size:15px}.card-desc{color:var(--text-muted);font-size:12px;margin-bottom:12px;margin-top:-8px}.grid{display:grid;gap:12px}.grid-2{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:repeat(4,1fr)}@media(max-width:900px){.grid-2,.grid-4{grid-template-columns:1fr}}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.stat 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var(--border-strong);background:var(--surface);color:var(--text);border-radius:6px;font-size:13px}.btn:hover{background:var(--surface-hover)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:4px 10px;font-size:12px}.badge{display:inline-block;padding:2px 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var(--border);border-radius:var(--radius)}.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px}.mono-sm{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;color:var(--text-muted)}pre.code{background:var(--code-bg);color:var(--code-fg);padding:12px;border-radius:6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;margin:0}.toasts{position:fixed;top:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px}.toast{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);padding:10px 14px;border-radius:6px;box-shadow:var(--shadow-lg);min-width:240px;max-width:400px;font-size:13px;animation:slideIn .2s ease}.toast.success{border-left-color:var(--success)}.toast.danger{border-left-color:var(--danger)}.toast.warning{border-left-color:var(--warning)}@keyframes 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var(--border-strong);border-radius:16px;font-size:12px;cursor:pointer;background:var(--surface)}.check-group input{display:none}.check-group label.checked{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.empty{padding:32px;text-align:center;color:var(--text-muted);font-size:13px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e293b);z-index:100}.login-card{background:var(--surface);border-radius:12px;padding:32px;width:420px;max-width:90%;box-shadow:var(--shadow-lg)}.login-tabs{display:flex;gap:4px;margin-bottom:16px;border-bottom:1px solid var(--border)}.login-tabs button{background:none;border:none;padding:8px 12px;color:var(--text-muted);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer}.login-tabs button.active{color:var(--accent);border-color:var(--accent)}