:root{--primary:#2563eb;--bg:#f4f7fb;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}.topbar{height:60px;background:#111827;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 28px}.brand{font-size:18px;font-weight:700}.userbar a{color:#bfdbfe;margin-left:14px}.layout{display:flex;min-height:calc(100vh - 100px)}.sidebar{width:210px;background:#fff;border-right:1px solid var(--border);padding:16px 10px}.sidebar a{display:block;color:#374151;padding:11px 14px;border-radius:8px;text-decoration:none;margin-bottom:4px}.sidebar a:hover{background:#eff6ff;color:var(--primary)}.content{flex:1;padding:26px;max-width:1500px;margin:0 auto;width:100%}.auth-main{max-width:460px;margin:70px auto;min-height:calc(100vh - 140px)}.footer{text-align:center;color:#9ca3af;padding:16px}.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.page-head h1{margin:0;font-size:24px}.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(15,23,42,.03);margin-bottom:20px}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}.stat b{display:block;font-size:28px;margin-top:4px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.field{margin-bottom:14px}.field label{display:block;font-weight:600;margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:9px 10px;border:1px solid #d1d5db;border-radius:7px;background:#fff;font:inherit}.field textarea{min-height:90px;resize:vertical}.btn{display:inline-block;border:0;border-radius:7px;padding:9px 15px;background:var(--primary);color:#fff;text-decoration:none;cursor:pointer;font:inherit}.btn.secondary{background:#eef2ff;color:#3730a3}.btn.gray{background:#e5e7eb;color:#374151}.btn.danger{background:#dc2626}.btn.small{padding:5px 10px;font-size:13px}.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:900px}.table th,.table td{padding:11px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.table th{background:#f8fafc;white-space:nowrap}.tag{display:inline-block;padding:3px 8px;border-radius:999px;font-size:12px;white-space:nowrap}.tag-A{background:#fee2e2;color:#b91c1c}.tag-B{background:#fce7f3;color:#be185d}.tag-C{background:#dcfce7;color:#15803d}.tag-D{background:#dbeafe;color:#1d4ed8}.tag-E{background:#fef3c7;color:#92400e}.tag-status{background:#f3f4f6;color:#374151}.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px}.flash.success{background:#dcfce7;color:#166534}.flash.error{background:#fee2e2;color:#991b1b}.flash-wrap{margin-bottom:12px}.login-card{margin-top:20px}.login-card h1{text-align:center}.small{font-size:12px}.detail-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.detail-item{background:#f8fafc;padding:12px;border-radius:8px}.detail-item strong{display:block;color:var(--muted);font-size:12px}.followup{border-left:3px solid #93c5fd;padding:10px 14px;margin:10px 0;background:#f8fafc}.followup .meta{color:var(--muted);font-size:12px}.notice{padding:12px 14px;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;color:#92400e}.footer{font-size:12px}@media(max-width:800px){.sidebar{width:150px}.content{padding:16px}.grid,.grid-3{grid-template-columns:1fr}.detail-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{padding:0 14px}.brand{font-size:16px}}