:root{--bg:#f3efe2;--card:#faf7ee;--card-line:#e3dcc7;--ink:#2b2a24;--ink-soft:#5a564a;--muted:#8a8471;--accent:#55603f;--accent-dark:#3d4630;--accent-soft:#eef0e2;--warn:#a8632f}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink)}body{font-family:Georgia,Hiragino Mincho ProN,Yu Mincho,serif;background-image:radial-gradient(circle,rgba(90,86,74,.07) 1px,transparent 1px);background-size:22px 22px;-webkit-font-smoothing:antialiased}img{max-width:100%}a{color:var(--accent-dark)}.page{max-width:980px;margin:0 auto;padding:0 40px 60px}.site-header{display:flex;justify-content:space-between;align-items:center;padding:26px 0 18px;border-bottom:1px solid var(--card-line);font-family:-apple-system,Hiragino Sans,sans-serif}.logo{font-weight:700;letter-spacing:.08em;font-size:15px;color:var(--accent-dark);text-decoration:none}.logo 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0;margin-bottom:6px;font-family:-apple-system,sans-serif}.meta-grid.two-col{grid-template-columns:repeat(2,1fr);border-top:none;padding-top:0}.meta-grid-header{font-family:-apple-system,sans-serif;font-size:11px;letter-spacing:.12em;font-weight:700;color:var(--accent-dark);margin:22px 0 12px}.meta-grid .label{display:block;font-size:10.5px;letter-spacing:.1em;color:var(--muted);margin-bottom:5px}.meta-grid .value{display:block;font-size:14.5px;color:var(--ink);line-height:1.5}.layout{display:grid;grid-template-columns:210px 1fr;gap:44px;margin-top:36px;align-items:start}.sidebar{position:sticky;top:24px;font-family:-apple-system,sans-serif}.step{display:flex;gap:12px;padding:10px 0 10px 16px;border-left:2px solid var(--card-line);margin-bottom:2px}.step:first-child{border-left-color:var(--accent)}.step .num{width:22px;height:22px;min-width:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent-dark);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}.step .txt{font-size:12.5px;line-height:1.5;color:var(--ink-soft)}.content h2{font-size:23px;margin:34px 0 12px;font-family:-apple-system,Hiragino Sans,sans-serif}.content h2:first-child{margin-top:0}.content h3{font-size:16.5px;margin:26px 0 10px;color:var(--accent-dark);font-family:-apple-system,Hiragino Sans,sans-serif}.content p{font-size:15.5px;line-height:1.8;margin:0 0 14px}.content p.jp{font-size:13.5px;line-height:1.95;color:var(--ink-soft);font-family:-apple-system,Hiragino Sans,sans-serif}.content strong{color:var(--accent-dark)}.content ul,.content ol{font-size:14px;line-height:1.9;padding-left:1.3em}.content blockquote{margin:0 0 18px;padding:2px 0 2px 16px;border-left:3px solid var(--card-line);color:var(--ink-soft)}.content hr{border:none;border-top:1px solid var(--card-line);margin:34px 0}.content img{width:100%;height:auto;border-radius:8px;border:1px solid var(--card-line);display:block;margin:22px 0 8px}.content em{font-family:-apple-system,Hiragino Sans,sans-serif;font-size:12px;color:var(--muted);font-style:normal;line-height:1.7}.content table{width:100%;border-collapse:collapse;margin:8px 0 28px;font-family:-apple-system,Hiragino Sans,sans-serif;font-size:12.5px}.content th{text-align:left;font-size:10.5px;letter-spacing:.06em;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--card-line);font-weight:700}.content td{padding:10px;border-bottom:1px solid var(--card-line);vertical-align:top;line-height:1.7}.content td:first-child{color:var(--ink-soft)}.table-wrap{overflow-x:auto}@media (max-width:820px){.page{padding:0 20px 44px}.layout{grid-template-columns:1fr;gap:20px}.sidebar{position:static}.meta-grid,.meta-grid.two-col{grid-template-columns:1fr 1fr}.card{grid-template-columns:1fr}.card .body{padding:18px 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