:root{color-scheme:dark;--bg:#08141b;--panel:#101f27;--line:#26383f;--mint:#a7edc9;--text:#e6eeed;--muted:#90a5ab;--yellow:#f6cf7a;--blue:#91bfdc;font-family:"Yu Gothic UI","Meiryo",system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:13px}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:5px}button{border:0;background:none}a{color:inherit;text-decoration:none}button:hover{color:var(--mint)}.topbar{height:84px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 3.3%;gap:20px}.brand{display:flex;gap:12px;align-items:center;font:600 17px Georgia,serif;letter-spacing:2.6px}.brand-icon{font-size:38px;color:var(--mint);font-family:system-ui}.brand-sub{display:block;font:9px 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