@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&family=Noto+Serif+SC:wght@600;700&family=JetBrains+Mono:wght@400;500;600&display=swap";:root{--bg: #FFFFFF;--surface: #F5F5F3;--border: #E5E5E3;--text-primary: #1A1A1A;--text-secondary: #6B6B6B;--text-tertiary: #999999;--link: #2563EB;--link-hover: #1D4ED8;--font-title: "Inter", "Noto Sans SC", "PingFang SC", sans-serif;--font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--font-serif: "Noto Serif SC", serif;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 24px;--sp-6: 32px;--sp-8: 48px;--sp-12: 64px;--t1: #7C3AED;--t1-bg: #F8F5FF;--t1-border: #D8CCFF;--t1-tag: #F3EEFF;--t2: #0891B2;--t2-bg: #F0FDFF;--t2-border: #A5E8F0;--t2-tag: #ECFEFF;--t3: #B45309;--t3-bg: #FFFDF0;--t3-border: #E8C97A;--t3-tag: #FEF3C7;--chain: #6B7280;--chain-bg: #F9FAFB;--chain-border: #E5E7EB;--chain-tag: 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