:root{color:#f8f3df;font-synthesis:none;text-rendering:optimizelegibility;--ink:#07121f;--ink-2:#0c2034;--ivory:#f8f3df;--amber:#ffbf3f;--cyan:#63d6d1;--coral:#ff6b5f;--line:#f8f3df57;--font-factor:1;background:#07121f;font-family:Inter,Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--ink)}body{background:var(--ink);min-width:320px;min-height:100vh;color:var(--ivory);margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a,button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--amber);outline-offset:3px}.skip-link{z-index:100;background:var(--ivory);color:var(--ink);padding:10px 14px;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{--scale:var(--font-factor);border-bottom:1px solid var(--line);min-height:100vh}.app-shell[data-font=small]{--font-factor:.9}.app-shell[data-font=large]{--font-factor:1.16}.app-shell[data-contrast=max]{--line:#f8f3dfb8;--ink-2:#020a12}.site-header{border-bottom:1px solid var(--line);z-index:10;background:#07121ff7;grid-template-columns:minmax(220px,1fr) auto minmax(330px,1fr);align-items:center;gap:28px;min-height:76px;padding:0 32px;display:grid;position:relative}.brand{width:max-content;font-family:Georgia,Yu Mincho,serif;font-size:calc(1.45rem * var(--font-factor));letter-spacing:.01em;align-items:center;gap:14px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{align-items:end;gap:2px;width:30px;height:34px;display:flex}.brand-mark i{border:2px solid var(--ink);background:var(--cyan);width:9px;display:block}.brand-mark 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