*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-light: #818cf8;--primary-bg: #eef2ff;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-500: #6b7280;--gray-700: #374151;--gray-900: #111827;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.6;-webkit-font-smoothing:antialiased}.app-header{background:white;border-bottom:1px solid var(--gray-200);position:sticky;top:0;z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:20px;font-weight:700;cursor:pointer;color:var(--gray-900);-webkit-user-select:none;user-select:none}.nav{display:flex;gap:4px}.nav-btn{padding:8px 16px;border:none;background:transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;color:var(--gray-500);transition:all .2s}.nav-btn:hover{background:var(--gray-100);color:var(--gray-700)}.nav-btn.active{background:var(--primary-bg);color:var(--primary)}.app-main{max-width:1200px;margin:0 auto;padding:24px}.card{background:white;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card-title{font-size:16px;font-weight:600;margin-bottom:16px;color:var(--gray-700)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:white;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;display:flex;flex-direction:column;gap:4px}.stat-card .label{font-size:13px;color:var(--gray-500)}.stat-card .value{font-size:28px;font-weight:700;color:var(--gray-900)}.stat-card .sub{font-size:12px;color:var(--gray-500)}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:500}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fef2f2;color:#991b1b}.badge-info{background:var(--primary-bg);color:var(--primary)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light)}.btn-ghost{background:transparent;color:var(--gray-500)}.btn-ghost:hover{background:var(--gray-100);color:var(--gray-700)}.btn-sm{padding:4px 10px;font-size:12px}.btn-danger{background:#fef2f2;color:var(--danger)}.btn-danger:hover{background:#fee2e2}.btn-success{background:#dcfce7;color:#166534}.btn-success:hover{background:#bbf7d0}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:12px;font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;padding:10px 12px;border-bottom:2px solid var(--gray-200)}td{padding:12px;border-bottom:1px solid var(--gray-100);font-size:14px}tr:hover td{background:var(--gray-50)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--gray-700);margin-bottom:4px}.form-input,.form-select{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border-color .2s}.form-input:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:200}.modal{background:white;border-radius:var(--radius);box-shadow:var(--shadow-md);padding:24px;width:90%;max-width:480px;max-height:80vh;overflow-y:auto}.modal-title{font-size:18px;font-weight:600;margin-bottom:20px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.empty{text-align:center;padding:48px 24px;color:var(--gray-500)}.empty-icon{font-size:48px;margin-bottom:12px}@media (max-width: 768px){.header-content{padding:0 16px}.app-main{padding:16px}.stat-grid{grid-template-columns:repeat(2,1fr)}.nav-btn{padding:6px 10px;font-size:13px}}