:root{--bg: #ffffff;--surface: #fafafa;--surface-2: #f2f2f2;--border: #e3e3e3;--border-strong: #c9c9c9;--text: #1a1a1a;--text-muted: #6b6b6b;--ink: #1a1a1a;--radius: 3px;--maxw: 1100px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased}a{color:var(--ink);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:64px}.site-header__logo{font-weight:800;font-size:1.2rem;color:var(--text);letter-spacing:-.01em}.site-header__logo:hover{text-decoration:none}.site-nav{display:flex;gap:1.5rem;flex-wrap:wrap}.site-nav a{color:var(--text-muted);font-size:.9rem;font-weight:600}.site-nav a:hover{color:var(--text);text-decoration:none}.hero{padding:3.5rem 0 2rem;border-bottom:1px solid var(--border);margin-bottom:1rem}.hero h1{font-size:clamp(2rem,5vw,2.9rem);margin:0 0 .6rem;letter-spacing:-.02em;color:var(--text)}.hero p{color:var(--text-muted);font-size:1.05rem;max-width:620px;margin:0}.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin:2rem 0 4rem}.post-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}.post-card:hover{border-color:var(--ink)}.post-card a{color:inherit;text-decoration:none}.post-card__thumb{aspect-ratio:16 / 9;width:100%;object-fit:cover;background:var(--surface-2)}.post-card__thumb--placeholder{display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:var(--border-strong)}.post-card__body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:.5rem;flex:1}.post-card__cat{font-size:.72rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.post-card__title{font-size:1.1rem;margin:0;line-height:1.45}.post-card__desc{color:var(--text-muted);font-size:.9rem;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post-card__date{margin-top:auto;color:var(--text-muted);font-size:.8rem}.article{max-width:760px;margin:0 auto;padding:2.5rem 0 4rem}.article__header{margin-bottom:2rem}.article__cat{color:var(--text-muted);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}.article__title{font-size:clamp(1.8rem,4vw,2.5rem);line-height:1.3;margin:.5rem 0;letter-spacing:-.02em}.article__meta{color:var(--text-muted);font-size:.9rem;display:flex;gap:1rem;flex-wrap:wrap}.article__hero{width:100%;border-radius:var(--radius);margin:1.5rem 0}.prose{font-size:1.05rem}.prose h2{margin-top:2.5rem;padding-bottom:.4rem;border-bottom:2px solid var(--ink);letter-spacing:-.01em}.prose h3{margin-top:2rem}.prose a{text-decoration:underline;text-underline-offset:2px}.prose img{border-radius:var(--radius)}.prose blockquote{border-left:3px solid var(--ink);margin:1.5rem 0;padding:.5rem 1.2rem;color:var(--text-muted);background:var(--surface)}.prose code{background:var(--surface-2);padding:.15em .4em;border-radius:var(--radius);font-size:.9em}.prose pre{padding:1rem 1.2rem;border-radius:var(--radius);overflow-x:auto;border:1px solid var(--border)}.prose pre code{background:none;padding:0}.prose table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.95rem}.prose th,.prose td{border:1px solid var(--border);padding:.6rem .8rem;text-align:left}.prose th{background:var(--surface)}.tags{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:2rem}.tag{font-size:.8rem;color:var(--text-muted);background:var(--surface);border:1px solid var(--border);padding:.2rem .7rem;border-radius:var(--radius)}.affiliate-disclosure{font-size:.82rem;color:var(--text-muted);background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--border-strong);border-radius:var(--radius);padding:.7rem 1rem;margin:1.5rem 0}.site-footer{border-top:1px solid var(--border);padding:2.5rem 0;color:var(--text-muted);font-size:.88rem}.site-footer__inner{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}.pagination{display:flex;justify-content:center;gap:.75rem;margin:2rem 0 4rem}.pagination a,.pagination span{padding:.5rem 1rem;border:1px solid var(--border);border-radius:var(--radius);color:var(--text)}.pagination a:hover{border-color:var(--ink);text-decoration:none}.pagination span{color:var(--text-muted)}.section-title{font-size:1.4rem;margin:2.5rem 0 0;letter-spacing:-.01em}