:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ls-bg:#f3f5f8;--ls-surface:#fff;--ls-border:#d9e0ea;--ls-text:#132239;--ls-subtext:#5a6b80;--ls-sidebar-bg:#11212c;--ls-primary:#0ea5e9;--ls-accent:#0d9488;--ls-content-max:1280px;--ls-mail-content-max:1440px;font-family:Noto Sans JP,Hiragino Sans,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--ls-bg);color:var(--ls-text);margin:0}a{color:inherit}.app-shell{min-height:100vh}.app-sidebar{z-index:40;background:var(--ls-sidebar-bg);color:#e7eef8;border-right:1px solid #ffffff1a;flex-direction:column;width:240px;display:flex;position:fixed;inset:0 auto 0 0}.app-brand{border-bottom:1px solid #ffffff1f;align-items:center;gap:10px;min-height:64px;padding:0 16px;font-weight:700;display:flex}.app-brand span{color:#38bdf8}.app-brand 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