@import"https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&display=swap";:root{font-family:Noto Sans JP,Yu Gothic UI,sans-serif;color:#1a2b3b;background:#f4f7f9;font-synthesis:none;--navy:#102a43;--navy-2:#183f5f;--teal:#159a92;--teal-pale:#e5f7f4;--line:#dce5ea;--muted:#70808e;--surface:#fff;--danger:#b93c4b}*{box-sizing:border-box}body{margin:0;min-width:320px;overflow:hidden}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:not-allowed;opacity:.55}.app-shell{height:100vh;display:grid;grid-template-columns:var(--sidebar-width,270px) var(--message-width,320px) 6px minmax(300px,1fr) 6px var(--ai-width,300px);background:var(--surface);position:relative}.sidebar{height:100vh;background:var(--navy);color:#d8e4eb;padding:22px 14px 16px;display:flex;flex-direction:column}.logo{height:42px;display:flex;align-items:center;gap:10px;padding:0 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