* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.7; color: #1a1a2e; background: #fafafa; }
.container { max-width: 800px; margin: 0 auto; padding: 0 1.5rem; }
header { background: #1a1a2e; color: white; padding: 1rem 0; }
header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { color: white; text-decoration: none; font-size: 1.3rem; font-weight: 700; }
nav a { color: #a0a0c0; text-decoration: none; margin-left: 1.5rem; }
nav a:hover { color: white; }
main { padding: 2.5rem 1.5rem; }
h1 { font-size: 2rem; margin-bottom: 1rem; line-height: 1.3; }
h2 { font-size: 1.5rem; margin: 2rem 0 0.8rem; }
h3 { font-size: 1.2rem; margin: 1.5rem 0 0.5rem; }
p { margin-bottom: 1rem; }
.intro { font-size: 1.15rem; color: #555; margin-bottom: 2rem; }
article img { max-width: 100%; border-radius: 8px; }
article table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92rem; }
article th, article td { padding: 0.6rem 0.8rem; border: 1px solid #ddd; text-align: left; }
article th { background: #f0f0f5; font-weight: 600; }
article ul, article ol { margin: 0.5rem 0 1rem 1.5rem; }
article li { margin-bottom: 0.3rem; }
article a { color: #2563eb; }
article strong { color: #111; }
article blockquote { border-left: 3px solid #2563eb; padding-left: 1rem; margin: 1rem 0; color: #555; }
article hr { border: none; border-top: 1px solid #e0e0e0; margin: 2rem 0; }
.article-list { display: flex; flex-direction: column; gap: 1.2rem; }
.article-card { display: block; padding: 1.5rem; background: white; border: 1px solid #e5e5e5; border-radius: 10px; text-decoration: none; transition: box-shadow 0.2s, border-color 0.2s; }
.article-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); border-color: #2563eb; }
.article-card h2 { font-size: 1.2rem; margin-bottom: 0.4rem; color: #1a1a2e; }
.article-card p { color: #555; font-size: 0.95rem; margin-bottom: 0.5rem; }
.read-more { color: #2563eb; font-weight: 600; font-size: 0.9rem; }
footer { background: #f0f0f5; padding: 1.5rem 0; margin-top: 3rem; text-align: center; color: #777; font-size: 0.9rem; }