@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");:root{--bg: #ffffff;--fg: #101218;--muted: #5b6170;--rule: #e7e9ee;--card: #fafbfc;--accent: #1d4ed8;--link: #1d4ed8;--tag-bg: #eef2ff;--tag-fg: #1d4ed8;--shadow: 0 1px 2px rgba(16, 18, 24, 0.04)}[data-theme="dark"]{--bg: #0f1115;--fg: #e6e8ec;--muted: #8a8f99;--rule: #252830;--card: #161922;--accent: #7aa2f7;--link: #7aa2f7;--tag-bg: #1e2230;--tag-fg: #a8b3cf;--shadow: 0 1px 2px rgba(0, 0, 0, 0.3)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;padding:0;font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;font-size:15px;line-height:1.6;letter-spacing:-0.005em;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color 0.2s ease, color 0.2s ease}a{color:var(--link);text-decoration:none;transition:opacity 0.15s 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