:root{--color-primary: #2D8B56;--color-primary-light: #3DA96A;--color-primary-dark: #1F6B3F;--color-primary-surface: rgba(45, 139, 86, .06);--color-primary-surface-hover: rgba(45, 139, 86, .1);--color-bg: #F5F7F9;--color-bg-elevated: #FFFFFF;--color-bg-surface: #FFFFFF;--color-bg-hover: #F0F2F5;--color-bg-active: #E8EBF0;--color-text-primary: #1A2332;--color-text-secondary: #5F6B7A;--color-text-tertiary: #8C96A3;--color-text-inverse: #FFFFFF;--color-text-link: #2D8B56;--color-border: #E2E6EC;--color-border-hover: #CDD3DC;--state-success: #2D8B56;--state-warning: #D4930D;--state-error: #D14343;--state-info: #2E7BC4;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .16);--font-sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif: "Noto Serif SC", Georgia, "Times New Roman", serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--text-xs: 12px;--text-sm: 13px;--text-base: 14px;--text-lg: 16px;--text-xl: 18px;--text-2xl: 24px;--text-3xl: 30px;--text-4xl: 36px;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.75;--leading-loose: 2;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--transition-fast: .12s ease;--transition-normal: .2s ease;--transition-slow: .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--color-bg);color:var(--color-text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}a{color:var(--color-text-link);text-decoration:none}button{font-family:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-border-hover)}.eye-care-mode{--color-bg: #F0EDE4;--color-bg-elevated: #E8E4D9;--color-bg-surface: #EDE9DF;--color-bg-hover: #E0DCD0;--color-text-primary: #3B3A2E;--color-text-secondary: #6B6958;--color-text-tertiary: #8A876F;--color-border: #D6D1C3;--color-border-hover: #C4BEAD}.dark-reading-mode{--color-bg: #1C2028;--color-bg-elevated: #232830;--color-bg-surface: #282E36;--color-bg-hover: #323A44;--color-text-primary: #D4D8DE;--color-text-secondary: #8A949F;--color-text-tertiary: #5F6B78;--color-border: 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