*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,PingFang SC,Helvetica Neue,sans-serif;background:#f5f6fa;color:#1f2937}a{color:inherit;text-decoration:none}.card{background:#fff;border-radius:10px;padding:20px;box-shadow:0 1px 3px #00000014}button{cursor:pointer}.btn{padding:8px 14px;border:none;border-radius:6px;background:#5b8def;color:#fff;font-size:14px}.btn.danger{background:#e74c3c}.btn.ghost{background:#eef1f6;color:#333}.btn:hover{opacity:.9}input,select,textarea{padding:8px 10px;border:1px solid #d7dce6;border-radius:6px;font-size:14px;outline:none}input:focus,select:focus{border-color:#5b8def}table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden}th,td{padding:12px 14px;text-align:left;border-bottom:1px solid #f0f2f6;font-size:14px}th{background:#fafbfd;color:#6b7280;font-weight:500}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px}.badge.green{background:#e6f7ef;color:#1a9e6d}.badge.red{background:#fdecec;color:#d64545}.badge.gray{background:#f0f0f0;color:#666}.layout{display:flex;min-height:100vh}.sidebar{width:200px;background:#1e2a4a;color:#fff;padding:20px 0}.sidebar h1{font-size:16px;padding:0 20px 20px;border-bottom:1px solid #33406a}.sidebar nav a{display:block;padding:12px 20px;color:#aab6d6;font-size:14px}.sidebar nav a.active,.sidebar nav a:hover{background:#2c3d6b;color:#fff}.main{flex:1;padding:24px}.main h2{margin-bottom:16px;font-size:20px}.toolbar{display:flex;gap:10px;margin-bottom:16px;align-items:center}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}.stat{background:#fff;border-radius:10px;padding:18px;box-shadow:0 1px 3px #00000014}.stat .num{font-size:26px;font-weight:700;margin-top:6px}.stat .label{color:#6b7280;font-size:13px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:#fff;padding:40px;border-radius:12px;width:340px;box-shadow:0 4px 20px #00000014}.login-card h1{font-size:20px;margin-bottom:24px;text-align:center}.login-card input{width:100%;margin-bottom:14px}.login-card .btn{width:100%}.muted{color:#9ca3af;font-size:13px}