:root{--st-kazu:#8a9bb4;--st-add:#e8743b;--st-sub:#3b8fd1;--st-mul:#2f8f5b;--st-div:#9b5cc4;--st-frac:#d1497a;--st-dec:#c99a1e;--paper:#f7f3ea;--sheet:#fffdf8;--ink:#23324a;--muted:#6b7486;--line:#e4dccb;--grid:#23324a0d;--accent:#e8743b;--accent-ink:#fff;--accent-soft:#fbe3d4;--ok:#2f8f5b;--ng:#c8483c;--ng-soft:#fbe2df;--key:#fff;--key-shadow:#d9cfbb;--owl:#eef3fb;--me:#fff1d6;--radius:18px;--font:"Zen Maru Gothic", "Hiragino Maru Gothic ProN", "BIZ UDPGothic", "Meiryo", system-ui, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--paper:#1b2130;--sheet:#242b3c;--ink:#eef1f6;--muted:#a6aec0;--line:#394257;--grid:#ffffff0a;--accent:#f08a55;--accent-ink:#1b2130;--accent-soft:#4a3326;--ok:#5cc28a;--ng:#ff8a7d;--ng-soft:#4a2c2a;--key:#2e3649;--key-shadow:#151a25;--owl:#2c3650;--me:#4a3e26;--lightningcss-light: 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