.tanxiaoyuan-theme{--xb-bg:#f4f8f5;--xb-surface:#fbfdfb;--xb-surface-soft:#edf4ef;--xb-surface-strong:#e2ece5;--xb-border:#d8e4dc;--xb-border-strong:#becfc4;--xb-text:#34443b;--xb-ink:#13271d;--xb-muted:#68796f;--xb-faint:#8b9b91;--xb-blue-bg:#e4f2e9;--xb-blue-text:#1c6b44;--xb-green-bg:#e4f2e9;--xb-green-text:#1c6b44;--xb-amber-bg:#e8f1e7;--xb-amber-text:#356847;--xb-red-bg:#fdebec;--xb-red-text:#9f2f2d;--xb-user-bg:#174d34;--xb-user-text:#f6faf7;--xb-overlay:#0c1f156b;--xb-font-sans:var(--font-noto-sans-sc), "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;--xb-font-display:var(--xb-font-sans);--xb-font-serif:var(--xb-font-sans);--xb-font-mono:"Geist Mono", "SF Mono", "JetBrains Mono", Menlo, monospace;--xb-radius-sm:8px;--xb-radius-md:12px;--xb-radius-lg:16px;--xb-shadow-subtle:0 1px 3px #14492f0f;--xb-shadow-card:0 0 0 1px #14492f0a;--xb-shadow-lift:0 16px 44px #14492f1c;--xb-ease:.18s cubic-bezier(.16, 1, .3, 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