:root{--bg: #f4f1ea;--surface: #fffdf7;--text: #2a2c27;--muted: #6e736a;--border: #eee9e0;--accent: #2d4a3e;--accent-strong: #233f33;--accent-soft: #e7ede8;--link: #3c5a52;--brass: #a98b5d;--band-stable: #3f6b54;--band-realistic: #4c6b62;--band-needs: #8f7344;--band-tough: #8a6749;--child-1: #3f6b54;--child-2: #8f7344;--child-3: #4c6b62;--child-4: #8a6749;--radius: 14px;--shadow: 0 1px 2px rgba(35, 50, 42, .03);--shadow-raised: 0 1px 2px rgba(35, 50, 42, .04), 0 10px 26px rgba(35, 50, 42, .06);--app-pad-top: calc(24px + env(safe-area-inset-top, 0px)) }*{box-sizing:border-box}html{overscroll-behavior:contain}body{margin:0;background-color:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased;overscroll-behavior:contain}.app{max-width:720px;margin:0 auto;padding:var(--app-pad-top) 18px 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