:root{--bg: #f7f8f6;--bg-raised: #ffffff;--ink: #1f2a24;--ink-soft: #5c6b62;--border: #dadfdb;--accent: #2f6f5e;--accent-ink: #1c4438;--accent-bg: #e7f0ec;--notice-bg: #fdf3dc;--notice-border: #d9a441;--notice-ink: #6b4c07;--font-body: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", Meiryo, sans-serif;--font-mono: ui-monospace, "SF Mono", "Consolas", "Menlo", monospace;--content-width: 40rem;--wide-width: 72rem;--radius: 6px}*{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:var(--accent-ink);text-decoration-color:var(--border);text-underline-offset:3px}a:hover,a:focus-visible{text-decoration-color:currentColor}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{width:100%;max-width:var(--wide-width);margin:0 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