:root{--color-bg:#fffaf3;--color-surface:#fff;--color-text:#2c2620;--color-muted:#6b6258;--color-accent:#d97706;--color-accent-dark:#b45309;--color-border:#ece4d6;--max-width:760px;--radius:12px;--shadow:0 1px 2px rgba(0,0,0,.04),0 4px 12px rgba(0,0,0,.04)}*{box-sizing:border-box}body,html{padding:0;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Yu Gothic UI,Meiryo,system-ui,sans-serif;font-size:17px;line-height:1.8;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:var(--color-accent-dark);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);position:-webkit-sticky;position:sticky;top:0;z-index:10}.site-header__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px;gap:8px 16px}.site-logo{font-size:1.25rem;font-weight:700;color:var(--color-text)}.site-logo__tld{color:var(--color-accent)}.site-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.95rem}.site-nav a{color:var(--color-muted)}.site-nav a:hover{color:var(--color-accent-dark);text-decoration:none}.site-main{padding:32px 0 64px;min-height:60vh}.hero{text-align:center;padding:24px 0 32px}.hero__title{font-size:1.7rem;margin:0 0 12px;line-height:1.4}.hero__lead{color:var(--color-muted);margin:0 auto;max-width:560px}.section{margin-top:48px}.section__title{font-size:1.25rem;margin:0 0 16px;padding-left:12px;border-left:4px solid var(--color-accent)}.category-grid{display:grid;grid-template-columns:1fr;grid-gap:12px;gap:12px}@media (min-width:600px){.category-grid{grid-template-columns:1fr 1fr}}.category-card{display:block;padding:18px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--color-text)}.category-card:hover{border-color:var(--color-accent);text-decoration:none}.category-card__name{font-weight:700;margin:0 0 6px}.category-card__desc{margin:0;font-size:.95rem;color:var(--color-muted)}.article-list{display:grid;grid-gap:12px;gap:12px}.article-card{display:block;padding:16px 18px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--color-text)}.article-card:hover{border-color:var(--color-accent);text-decoration:none}.article-card__category{display:inline-block;font-size:.75rem;color:var(--color-accent-dark);background:#fff3e0;padding:2px 8px;border-radius:999px;margin-bottom:6px}.article-card__title{font-size:1.05rem;margin:0 0 6px}.article-card__desc{margin:0 0 6px;font-size:.92rem;color:var(--color-muted)}.article-card__date{font-size:.8rem;color:var(--color-muted)}.article{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow)}.article__meta{font-size:.85rem;color:var(--color-muted);margin-bottom:8px}.article h1{font-size:1.6rem;line-height:1.4;margin-top:0}.article h2{font-size:1.25rem;margin-top:2.2em;padding-left:10px;border-left:4px solid var(--color-accent)}.article h3{font-size:1.1rem;margin-top:1.8em}.article p{margin:1em 0}.article ol,.article ul{padding-left:1.4em}.article blockquote{border-left:4px solid var(--color-border);padding:.2em 1em;color:var(--color-muted);margin:1.4em 0;background:#fffdf7;border-radius:0 var(--radius) var(--radius) 0}.article code{background:#f4ede0;padding:.1em .4em;border-radius:4px;font-size:.92em}.callout{background:#fff3e0;border:1px solid #f5d8a8;border-left:4px solid var(--color-accent);padding:12px 16px;border-radius:var(--radius);margin:1.4em 0}.callout__title{font-weight:700;color:var(--color-accent-dark);margin:0 0 6px}.cta{display:inline-block;background:var(--color-accent);color:#fff!important;padding:12px 22px;border-radius:999px;font-weight:700;margin:16px 0}.cta,.cta:hover{text-decoration:none}.cta:hover{background:var(--color-accent-dark)}.site-footer{background:#f4ede0;margin-top:48px;padding:28px 0;font-size:.9rem;color:var(--color-muted)}.site-footer__inner{text-align:center}.site-footer__links{list-style:none;padding:0;margin:12px 0;display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:center}.site-footer__copy{margin:8px 0 0}