:root{--ink:#192234;--muted:#75809a;--line:#e6e9f1;--accent:#6256e8;--soft:#f5f4ff;--surface:#fff;--page:#eef0f7;--aside-bg:#fbfbfd;--input-bg:#fff;--msg-bg:#fff;--border2:#f0f1f5;--shadow:#2730521c;--doodle:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cg fill='none' stroke='%232b3350' stroke-width='1.4' stroke-linecap='round' opacity='.055'%3E%3Cpath d='M-12 44Q28 10 64 44T146 44T252 44'/%3E%3Cpath d='M-16 158Q26 192 74 158T164 158T256 158'/%3E%3Cpath d='M112 66q16 20 0 40t0 40'/%3E%3Cpath d='M18 96q18-14 34 0t34 0'/%3E%3Ccircle cx='196' cy='30' r='2.6'/%3E%3Ccircle cx='24' cy='128' r='2.6'/%3E%3Ccircle cx='168' cy='190' r='2.6'/%3E%3Ccircle cx='210' cy='120' 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