:root{--canvas: #fbf8f1;--text: #17342c;--text-body: #47635b;--button: #145c43;--button-text: #ffffff;--footer: #0b3a2a;--input-bg: #f4f8f5;--card-bg: #f4f8f5;--card-bg-white: #ffffff;--border: #e6e1d7;--border-input: rgb(202, 219, 210);--border-card: rgb(220, 230, 224);--accent-orange: #c95e1d;--accent-green: #1e7455;--badge-bg: #e8f3ed;--result-panel: #273444;--warn-bg: #fff7e8;--error: #b3261e;--nav-bg: rgb(251 248 241 / .92);--neutral-48: #71867e;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;--r-default: 11px;--r-input: 12px;--r-button: 14px;--r-card: 18px;--r-card-lg: 22px;--r-warn: 10px;--r-pill: 99px;--shadow-1: rgba(18, 63, 48, .07) 0px 8px 30px 0px;--shadow-2: rgba(8, 45, 33, .18) 0px 9px 24px 0px;--shadow-3: rgba(18, 63, 48, .11) 0px 18px 60px 0px;--shadow-4: rgba(20, 92, 67, .18) 0px 8px 20px 0px;--nav-h: 77px;--content-w: 1200px;--article-w: 930px}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img{max-width:100%;height:auto}a{color:var(--text)}h1,h2,h3,h4{color:var(--text);line-height:1.35;margin:0}p{margin:0 0 1em;color:var(--text-body)}.container{max-width:var(--content-w);margin-inline:auto;padding-inline:24px}.container--article{max-width:var(--article-w)}.skip-link{position:absolute;left:-9999px;top:0;background:var(--button);color:var(--button-text);padding:8px 16px;border-radius:0 0 var(--r-default) 0;z-index:100}.skip-link:focus{left:0}.site-nav{position:sticky;top:0;z-index:50;height:var(--nav-h);background:var(--nav-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid 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