:root{--bg:#faf7f2;--card:#ffffff;--text:#3a3330;--muted:#8a7f78;--accent:#b95c3f;--accent-soft:#f3e4dd;--border:#e8e0d8}@media (prefers-color-scheme:dark){:root{--bg:#201c1a;--card:#2a2523;--text:#ece5df;--muted:#a89c93;--accent:#e08a68;--accent-soft:#3d2f28;--border:#3b342f}}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Noto Sans JP,sans-serif;line-height:1.9;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}.site-header{text-align:center;padding:3rem 1rem 2rem;border-bottom:1px solid var(--border)}.site-title{font-size:2rem;font-weight:700;color:var(--text);letter-spacing:.15em}.site-tagline{margin-top:.5rem;font-size:.85rem;color:var(--muted);letter-spacing:.1em}.site-main{max-width:680px;margin:0 auto;padding:2.5rem 1.25rem 4rem}.site-footer{text-align:center;padding:2rem 1rem 3rem;color:var(--muted);font-size:.8rem;border-top:1px solid var(--border)}.post-list{list-style:none;display:grid;grid-gap:1.25rem;gap:1.25rem}.post-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem 1.75rem;transition:transform .15s ease,box-shadow .15s ease}.post-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.06)}.post-card a{color:var(--text);display:block}.post-eyecatch{width:100%;border-radius:8px;margin-bottom:1rem;display:block}.post-card h2{font-size:1.15rem;line-height:1.6}.post-meta{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-top:.6rem;font-size:.78rem;color:var(--muted)}.post-category{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:.1rem .7rem;font-weight:600}.post-excerpt{margin-top:.7rem;font-size:.9rem;color:var(--muted)}.article-header{margin-bottom:2.5rem}.article-header h1{font-size:1.6rem;line-height:1.7;margin-top:.8rem}.article-eyecatch{width:100%;border-radius:12px;margin-top:1.5rem;display:block}.article-body{font-size:1rem}.article-body img{margin:.5rem 0 1.4rem}.article-body h2{font-size:1.25rem;margin:2.5rem 0 1rem;padding-left:.75rem;border-left:4px solid var(--accent);line-height:1.6}.article-body h3{font-size:1.1rem;margin:2rem 0 .8rem}.article-body p{margin-bottom:1.4rem}.article-body ol,.article-body ul{margin:0 0 1.4rem 1.5rem}.article-body blockquote{border-left:3px solid var(--border);padding-left:1rem;color:var(--muted);margin-bottom:1.4rem}.article-body img{max-width:100%;border-radius:8px}.back-link{display:inline-block;margin-top:3rem;font-size:.9rem}