:root{--polly-bg: #f5f6fa;--polly-card: #ffffff;--polly-primary: #2563eb;--polly-primary-light: #dbeafe;--polly-primary-dark: #1d4ed8;--polly-text: #1e293b;--polly-text-secondary: #64748b;--polly-border: #e2e8f0;--polly-success: #059669;--polly-warning: #d97706;--polly-danger: #dc2626;--polly-danger-bg: #fef2f2;--polly-warning-bg: #fffbeb;--polly-info-bg: #eff6ff;--polly-think-bg: #f8fafc;--polly-think-border: #cbd5e1;--polly-radius: 12px;--polly-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--polly-shadow-lg: 0 4px 12px rgba(0,0,0,.1);--polly-panel-width: 460px;--polly-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif}.polly-widget,.polly-widget *,.polly-widget *:before,.polly-widget *:after{box-sizing:border-box;margin:0;padding:0}.polly-widget{font-family:var(--polly-font);line-height:1.6;color:var(--polly-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f0f2f5;color:#1e293b;min-height:100vh}#fire-safety-app{min-height:100vh}