:root{--ink:#18332e;--green:#167765;--green2:#0d5b4d;--mint:#eaf6f2;--line:#dce8e4;--paper:#fff;--bg:#f6f8f7;--muted:#687b76;--danger:#b53b3b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;line-height:1.7}a{color:var(--green2);text-decoration:none}.top{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1080px)/2));position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}.brand span{display:grid;place-items:center;width:38px;height:38px;background:var(--green);color:#fff;border-radius:12px;font-family:Georgia;font-size:23px}.top nav{display:flex;align-items:center;gap:22px;font-size:14px}.top nav form{margin:0}.linkbtn{border:0;background:transparent;color:var(--green2);padding:0}.shell{max-width:920px;margin:0 auto;padding:42px 24px 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