:root{--bg:#f5f5f7;--surface:#fff;--border:#e5e5e7;--text:#1a1a1a;--text-soft:#6e6e73;--accent:#5b4fff;--accent-light:#ede9ff;--green:#22c55e;--green-bg:#dcfce7;--red:#ef4444;--red-bg:#fee2e2;--yellow:#f59e0b;--yellow-bg:#fef3c7;--blue:#3b82f6;--blue-bg:#dbeafe;--purple:#8b5cf6;--purple-bg:#ede9fe;--sidebar-w:240px;--radius:12px;--shadow:0 1px 8px #0000000f}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,sans-serif;font-size:13.5px;line-height:1.5}.auth-gate{background:linear-gradient(135deg,#f0eeff 0%,#f5f5f7 60%,#e8f4ff 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-box{background:#fff;border-radius:18px;width:400px;max-width:calc(100vw - 32px);padding:36px;box-shadow:0 8px 40px #5b4fff1a}.app{width:100vw;min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);z-index:100;flex-direction:column;flex-shrink:0;height:100vh;display:flex;position:sticky;top:0;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.logo{align-items:center;gap:8px;font-size:15px;font-weight:800;display:flex}.logo-mark{color:#fff;background:#0a0a0a;border-radius:8px;justify-content:center;align-items:center;width:30px;height:30px;font-size:14px;font-weight:800;display:flex}.sidebar-close{cursor:pointer;color:var(--text-soft);background:0 0;border:none;font-size:15px;display:none}.sidebar-nav{flex:1;padding:8px 6px;overflow-y:auto}.nav-section{letter-spacing:.08em;color:var(--text-soft);padding:12px 8px 4px;font-size:10px;font-weight:600}.nav-item{cursor:pointer;color:var(--text-soft);-webkit-user-select:none;user-select:none;border-radius:8px;align-items:center;gap:8px;margin-bottom:1px;padding:7px 8px;font-size:12.5px;font-weight:500;transition:all 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20px;display:flex;position:sticky;top:0}.menu-toggle{cursor:pointer;color:var(--text);background:0 0;border:none;padding:4px;display:none}.topbar-title{flex:1;font-size:14px;font-weight:700}.topbar-right{align-items:center;gap:10px;display:flex}.live-time{color:var(--text-soft);font-variant-numeric:tabular-nums;font-size:12px}.btn-store{background:var(--accent-light);color:var(--accent);white-space:nowrap;border-radius:20px;padding:5px 12px;font-size:11.5px;font-weight:600;text-decoration:none;transition:all .15s}.btn-store:hover{background:var(--accent);color:#fff}.page-content{flex:1;padding:20px;overflow-y:auto}.greeting-banner{background:linear-gradient(135deg, var(--accent) 0%, #7c3aed 100%);border-radius:var(--radius);color:#fff;margin-bottom:16px;padding:18px 20px}.greeting-name{color:#fff;margin-bottom:4px;font-size:18px;font-weight:800}.greeting-sub{opacity:.85;font-size:12.5px}.greeting-time{opacity:.7;margin-top:4px;font-size:11.5px}.kpi-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-bottom:16px;display:grid}.kpi-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px}.kpi-label{color:var(--text-soft);letter-spacing:.06em;margin-bottom:6px;font-size:11px;font-weight:600}.kpi-val{margin-bottom:2px;font-size:20px;font-weight:800;line-height:1.2}.kpi-val.green{color:var(--green)}.kpi-val.accent{color:var(--accent)}.kpi-val.red{color:var(--red)}.kpi-val.yellow{color:var(--yellow)}.kpi-sub{color:var(--text-soft);font-size:11px}.dash-grid{grid-template-columns:1fr 340px;gap:16px;margin-bottom:16px;display:grid}@media (width<=1024px){.dash-grid{grid-template-columns:1fr}}.section-card{background:var(--surface);border:1px solid 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#0000000a}.deal-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 6px 16px #00000014}.deal-card-title{color:var(--text);font-size:13.5px;font-weight:700}.deal-card-price{color:var(--text);font-size:12.5px;font-weight:800}.deal-card-meta{color:var(--text-soft);border-top:1px dashed var(--border);justify-content:space-between;margin-top:4px;padding-top:6px;font-size:10.5px;display:flex}.deal-card-profit{border-radius:4px;align-self:flex-start;margin-top:4px;padding:2px 6px;font-size:11.5px;font-weight:700}.profit-green{background:var(--green-bg);color:#16a34a}.profit-yellow{background:var(--yellow-bg);color:#d97706}.profit-red{background:var(--red-bg);color:#dc2626}.btn-sm-circle{border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;padding:0;display:inline-flex}