*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #409eff;--primary-hover: #66b1ff;--success-color: #67c23a;--warning-color: #e6a23c;--danger-color: #f56c6c;--info-color: #909399;--text-primary: #303133;--text-regular: #606266;--text-secondary: #909399;--border-color: #dcdfe6;--border-color-light: #e4e7ed;--bg-color: #f5f7fa}html,body{width:100%;height:100%;overflow:hidden;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text-primary);background-color:#f0f2f5;line-height:1.6}a{color:var(--primary-color);text-decoration:none}a:hover{color:var(--primary-hover)}#app{width:100%;height:100vh;overflow:hidden}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.page-header h2{font-size:20px;font-weight:600;color:var(--text-primary)}.card{background:#fff;border-radius:8px;box-shadow:0 2px 12px #0000001a;padding:20px}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.text-center{text-align:center}.mt-20{margin-top:20px}.mb-20{margin-bottom:20px}