@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Inter+Tight:wght@600;700&display=swap";:root{--color-bg: #fff;--color-text: #111;--color-muted: #6B6B6B;--color-placeholder: #9A9A9A;--color-border: #E8E8E8;--color-surface: #F7F7F5;--color-accent: #6366f1;--color-accent-light: #EEF0FD;--font-body: "Inter", -apple-system, system-ui, sans-serif;--font-heading: "Inter Tight", "Inter", sans-serif;--sidebar-width: 260px;--toc-width: 220px;--max-page-width: 1440px}[data-theme=dark]{--color-bg: #111119;--color-text: #e2e8f0;--color-muted: #8b92a5;--color-placeholder: #555b6e;--color-border: #1e1e2d;--color-surface: #181825;--color-accent: #818cf8;--color-accent-light: rgba(129, 140, 248, .08)}[data-theme=dark] .sidebar{background:#161622;border-color:var(--color-border)}[data-theme=dark] .header-logo img{filter:brightness(0) invert(1)}[data-theme=dark] .prose pre{background:#0f0f1a}[data-theme=dark] .prose img{border-color:var(--color-border)}[data-theme=dark] .prose code{background:var(--color-surface)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-body);font-size:16px;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-padding-top:24px}body{min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.header{position:fixed;top:0;left:0;right:0;height:56px;background:var(--color-bg);border-bottom:1px solid var(--color-border);z-index:200}.header-inner{max-width:var(--max-page-width);margin:0 auto;height:100%;display:flex;align-items:center;padding:0 24px;gap:16px}.header-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}.header-logo img{height:38px;width:auto}.header-logo-hub{font-size:21px;color:var(--color-accent);font-weight:700}.header-search{flex:1;max-width:420px;margin:0 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