:root{--bg-color: #ffffff;--surface-color: #f5f5f5;--surface-hover: #eaeaea;--text-primary: #1a1a1a;--text-secondary: #555555;--accent-color: #000000;--border-color: #e0e0e0;--font-main: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--max-width: 800px;--header-height: 80px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-main);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:opacity .2s ease}a:hover{opacity:.8}img{max-width:100%;display:block}.layout{display:flex;flex-direction:column;min-height:100vh}header{height:var(--header-height);padding:0 var(--spacing-lg);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);position:sticky;top:0;background:var(--bg-color);z-index:100;color:var(--text-primary)}header a{color:var(--text-primary)}.logo{font-weight:700;font-size:1.5rem;letter-spacing:-.05em;display:flex;align-items:center;gap:.5rem}header nav ul{list-style-type:square;display:flex;flex-direction:column;gap:.2rem;margin-left:2rem;font-size:.9rem;line-height:1.2}.logo img{height:1.5em;width:auto}main{flex:1;width:100%;max-width:var(--max-width);margin:0 auto;padding:calc(var(--header-height) + 2rem) var(--spacing-lg) var(--spacing-xl)}footer{padding:var(--spacing-lg);text-align:center;color:var(--text-secondary);font-size:.9rem;border-top:1px solid var(--border-color)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-lg)}.card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;padding:var(--spacing-lg);transition:transform .2s ease,border-color .2s ease;cursor:pointer}.card:hover{transform:translateY(-4px);border-color:var(--text-secondary);background:var(--surface-hover)}.card h2{font-size:1.5rem;margin-bottom:var(--spacing-sm);color:var(--accent-color)}.card p{color:var(--text-secondary);font-size:1rem}.card-date{font-size:.85rem;color:var(--text-secondary);opacity:.7;margin-bottom:var(--spacing-md);display:block}.article-header{margin-bottom:var(--spacing-xl)}.article-title{font-size:2rem;line-height:1.2;margin-bottom:var(--spacing-md);letter-spacing:-.02em}.article-meta{color:var(--text-secondary)}.article-content h2{margin-top:var(--spacing-xl);margin-bottom:var(--spacing-md);font-size:1.8rem}.article-content p{margin-bottom:var(--spacing-md)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.layout{animation:fadeIn .6s ease-out}.card{animation:fadeIn .6s ease-out backwards}.card:nth-child(1){animation-delay:.1s}.card:nth-child(2){animation-delay:.2s}.card:nth-child(3){animation-delay:.3s}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:var(--surface-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}