:root{--bg: #f5f5f3;--surface: #ffffff;--ink: #1d1f21;--muted: #6b6f73;--line: #e1e2df;--accent: #24566b;--accent-soft: #e7eef1;--focus: #1a7fb0;--radius: 10px;--header-h: 52px;--maxw: 1080px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic UI,Yu Gothic,Meiryo,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.7;padding-top:var(--header-h)}img{display:block;max-width:100%}a{color:var(--accent)}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 16px}.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);background:var(--bg);border-bottom:1px solid rgba(0,0,0,.05)}.global-nav{height:100%;max-width:var(--maxw);margin:0 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