:root{--bg:#f6f7fb;--panel:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--primary:#2563eb;--danger:#dc2626;--ok:#16a34a;--warn:#d97706;--sidebar:#111827}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:14px}.app{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--sidebar);color:#fff;position:fixed;left:0;top:0;bottom:0;padding:18px 12px}.brand{font-size:20px;font-weight:700;margin:0 8px 18px}.nav a{display:block;color:#d1d5db;text-decoration:none;padding:10px 12px;border-radius:8px;margin:4px 0}.nav a:hover,.nav a.active{background:#1f2937;color:#fff}.main{margin-left:230px;min-height:100vh;width:calc(100% - 230px)}.topbar{height:56px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:3}.content{padding:22px}.muted{color:var(--muted)}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.stat{font-size:28px;font-weight:800;margin-top:8px}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:8px 12px;text-decoration:none;cursor:pointer}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn.small{padding:5px 8px;font-size:12px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:#fff}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}th{background:#f9fafb;font-weight:700}tr:last-child td{border-bottom:0}.form-row{display:grid;grid-template-columns:160px 1fr;gap:10px;align-items:center;margin-bottom:12px}.form-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.form-grid .full{grid-column:1/-1}label{font-weight:600}.input,select,textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:8px 10px;font:inherit;background:#fff}textarea{min-height:100px}.badge{display:inline-block;padding:3px 8px;border-radius:999px;font-size:12px;background:#e5e7eb}.badge.ok{background:#dcfce7;color:#166534}.badge.error{background:#fee2e2;color:#991b1b}.badge.warn{background:#fef3c7;color:#92400e}.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px}.alert.error{background:#fee2e2;color:#991b1b}.login-page{display:flex;min-height:100vh;align-items:center;justify-content:center;background:linear-gradient(135deg,#eff6ff,#f8fafc)}.login-card{width:420px;background:#fff;border-radius:18px;padding:28px;box-shadow:0 20px 60px rgba(15,23,42,.12)}.login-card h1{margin:0 0 8px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.section-title{display:flex;align-items:center;justify-content:space-between;margin:22px 0 12px}.code{font-family:ui-monospace,Menlo,Consolas,monospace;background:#f3f4f6;border-radius:8px;padding:8px;white-space:pre-wrap}@media(max-width:900px){.sidebar{position:relative;width:100%;height:auto}.app{display:block}.main{margin-left:0;width:100%}.grid-4,.grid-2,.form-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.topbar{position:relative}}