:root{--red:#e60021;--ink:#202023;--muted:#63646c;--line:#e5e5e8;--stage:#f2f2f3;--font:Arial, "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;background:#fff;margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button,a{touch-action:manipulation}button{color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,.scene-stage:focus-visible{outline-offset:5px;outline:3px solid #2676c9}button:disabled{cursor:default}button svg,a svg{flex-shrink:0}.exhibition-app{flex-direction:column;min-height:100svh;display:flex}.exhibition-app>main{flex:1}.site-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;gap:20px;height:80px;padding:0 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