:root{--ink:#2c2420;--cream:#fdfbf8;--warm:#f7f2ec;--brown:#7a5230;--brown-dark:#5c3d22;--brown-light:#c49a6c;--honey:#e8a838;--grey:#7a7470;--border:#e8e2da;--radius:12px;--shadow:0 4px 20px #2c24201a}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:64px;overflow-x:clip}body{font-family:var(--font-body);background:var(--cream);color:var(--ink);overflow-x:clip}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.header{z-index:100;background:#fdfbf8f2;border-bottom:1px solid #fff9;justify-content:space-between;align-items:center;height:64px;padding:0 6%;display:flex;position:sticky;top:0;box-shadow:0 4px 24px #2c24200f,inset 0 -1px #7a523014}@supports ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.header{-webkit-backdrop-filter:blur(20px)saturate(180%);backdrop-filter:blur(20px)saturate(180%);background:#fdfbf88c}}.logo{font-family:var(--font-display);color:var(--brown-dark);align-items:center;gap:10px;font-size:1.2rem;font-weight:700;display:flex}.logo-mark{background:var(--brown);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;display:flex}.lang-switch{color:var(--grey);border:1.5px solid var(--border);white-space:nowrap;border-radius:20px;padding:4px 12px;font-size:.78rem;font-weight:600;transition:color .2s,border-color .2s}.lang-switch:hover{color:var(--brown);border-color:var(--brown)}.header-right-group{align-items:center;gap:12px;display:flex}footer{background:var(--ink);color:var(--grey);text-align:center}.footer-logo{font-family:var(--font-display);color:var(--brown-light);font-weight:700}
:root{--font-display:"Avenir Next", "Helvetica Neue", "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", sans-serif;--font-body:"ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif}