body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f5f7fa}.stat-card-value{font-size:28px;font-weight:600}.level-emergency{color:#d4380d}.level-critical{color:#fa8c16}.level-warning{color:#fadb14}.level-info{color:#1890ff}