:root{--primary-dark: #0F2638;--primary-blue: #1C3F5E;--primary-light: #2C5F7E;--accent-orange: #FF9900;--accent-gold: #FFD700;--accent-green: #27AE60;--bg-white: #FFFFFF;--bg-gray-light: #F5F5F5;--bg-gray: #F8F9FA;--text-dark: #333333;--text-gray: #666666;--text-light: #6C757D;--border-light: #E9ECEF;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 24px;--spacing-xxl: 32px;--shadow-sm: 0 2px 5px rgba(0, 0, 0, .06);--shadow-md: 0 8px 18px rgba(15, 38, 56, .12);--shadow-lg: 0 12px 30px rgba(15, 38, 56, .22);--header-height: 60px}*{margin:0;padding:0;box-sizing:border-box}html{height:100%}body{font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-size:clamp(18px,1.8vw + 12px,22px);line-height:2.2;color:var(--text-dark);background:radial-gradient(circle at top,#21466a 0,#0f2638 40%,#050b10);min-height:100vh}ruby{ruby-position:over}ruby 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var(--border-light);padding-bottom:var(--spacing-md);margin-bottom:var(--spacing-xl)}.blog-title{color:var(--primary-blue);font-size:clamp(1.4rem,3.5vw,2.2rem);margin-bottom:var(--spacing-sm);line-height:1.6;font-weight:700}.blog-meta{font-size:.7em;color:var(--text-light);display:flex;gap:var(--spacing-md);flex-wrap:wrap}.blog-content{font-size:1em;line-height:2.4;margin-bottom:var(--spacing-xxl)}.blog-content p{margin-bottom:var(--spacing-xl);text-align:justify}.recommendations-header{margin-top:var(--spacing-xl);margin-bottom:var(--spacing-lg);padding-top:var(--spacing-xl);border-top:2px solid var(--border-light)}.recommendations-header h2{color:var(--primary-blue);font-size:clamp(1.2rem,3vw,1.6rem);margin-bottom:var(--spacing-sm)}.recommendations-meta{font-size:.7em;color:var(--text-light);display:flex;gap:var(--spacing-lg);flex-wrap:wrap}.list-container{display:flex;flex-direction:column;gap:var(--spacing-md)}.list-item{background:var(--bg-white);border:1px solid 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a:hover{color:var(--primary-light)}.article-meta{font-size:.65em;color:var(--text-light);display:flex;gap:var(--spacing-md);flex-wrap:wrap;margin-bottom:var(--spacing-md)}.article-theme-badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:1em;font-weight:700;background:var(--accent-gold);color:var(--primary-dark)}.article-preview{font-size:.8em;line-height:1.8;color:var(--text-gray);margin-bottom:var(--spacing-md)}.article-book-preview{display:flex;gap:var(--spacing-sm);align-items:center;margin-bottom:var(--spacing-md)}.article-book-thumb{width:48px;height:72px;border-radius:6px;overflow:hidden;box-shadow:var(--shadow-sm);flex-shrink:0}.article-book-thumb img{width:100%;height:100%;object-fit:cover}.empty-state{text-align:center;padding:var(--spacing-xxl);color:var(--text-light);font-size:.8em}@media(max-width:768px){body{font-size:clamp(16px,4.5vw,20px);line-height:2}.header{height:auto}.nav-container{flex-wrap:wrap;align-items:center;padding:8px 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