:root{--pri:#0b5f5a;--pri2:#13857d;--ink:#17302f;--mut:#4d6260;--bg:#f4faf8;--line:#dce9e6;--cream:#fff6e3;--coral:#e8604f;--sky:#3f9cc4;--r:18px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Noto Sans JP,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:15px}p,td{overflow-wrap:anywhere}a{color:var(--pri)}h1,h2,.rd{font-family:"M PLUS Rounded 1c",Noto Sans JP,sans-serif;letter-spacing:.02em}.w{max-width:1080px;margin:0 auto;padding:0 18px}header{position:sticky;top:0;z-index:10;background:#ffffffe8;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:62px;gap:12px}.logo{display:flex;align-items:center;gap:8px;text-decoration:none}.logo img{width:34px;height:34px}.logo b{font-family:"M PLUS Rounded 1c";font-weight:800;font-size:22px;color:var(--pri)}.logo b i{font-style:normal;color:var(--coral)}.logo 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