:root{--color-bg-warm: #fcfbf9;--color-bg-surface: #ffffff;--color-bg-sidebar: #f7f7f4;--color-text-primary: #1f2124;--color-text-secondary: #5a5d64;--color-text-muted: #8c9099;--color-accent-green: #1b4332;--color-border: rgba(216, 221, 210, .8);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display: "Outfit", sans-serif;--font-serif: "Noto Serif SC", "Songti SC", STSong, "Noto Serif CJK SC", "Source Han Serif SC", "Source Han Serif CN", SimSun, serif;--max-width: 1000px;--header-height: 80px}*{box-sizing:border-box;margin:0;padding:0;scroll-behavior:smooth}body{background-color:var(--color-bg-warm);color:var(--color-text-primary);font-family:var(--font-sans);line-height:1.7;overflow-x:hidden;position:relative;-webkit-font-smoothing:antialiased}.container{width:90%;max-width:var(--max-width);margin:0 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