:root{--bg: #fbfaf8;--bg-elev: #ffffff;--text: #1c1a17;--text-soft: #3d3833;--muted: #6f6862;--border: #e8e3da;--accent: #b45309;--accent-soft: #fdf3e6;--code-bg: #f2eee7;--shadow: 0 1px 2px rgba(28, 26, 23, .04), 0 8px 24px rgba(28, 26, 23, .04);--maxw: 720px;--radius: 14px}[data-theme=dark]{--bg: #121211;--bg-elev: #1a1917;--text: #eceae5;--text-soft: #d3cfc8;--muted: #948d84;--border: #2b2825;--accent: #f0b429;--accent-soft: #241d10;--code-bg: #201e1b;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Source Han Sans SC,sans-serif;font-size:17px;line-height:1.85;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;transition:background-color .25s ease,color .25s 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