:root {
        --primary: #2d7ca0;
        --accent: #3894ce;
        --dark: #333;
        --light: #f4f4f4;
        --text: #333;
    }
    body { font-family: Arial, Helvetica, sans-serif; color: var(--text); line-height: 1.6; margin: 0; background: #fff; }
    header { background: var(--primary); color: #fff; padding: 20px; text-align: center; }
    nav { background: #333; padding: 10px; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
    nav a { color: #fff; text-decoration: none; font-size: 0.9em; padding: 5px 10px; border: 1px solid #555; }
    nav a:hover { background: var(--accent); }
    .container { max-width: 900px; margin: auto; padding: 20px; }
    table { width: 100%; border-collapse: collapse; margin: 10px 0; }
    td, th { padding: 8px; border: 1px solid #ddd; text-align: left; }
    h1, h2, h3 { color: var(--primary); border-bottom: 2px solid var(--primary); padding-bottom: 5px; }
    .badge { height: 20px; vertical-align: middle; }
    .btn-link { display: inline-block; padding: 5px 15px; background: var(--light); border: 1px solid #ccc; text-decoration: none; color: var(--dark); font-weight: bold; border-radius: 4px; }
    .hatena-fake { display: inline-block; width: 20px; height: 20px; background: #008fde; color: white; text-align: center; font-size: 10px; line-height: 20px; font-weight: bold; }
    footer { text-align: center; padding: 20px; font-size: 0.8em; border-top: 1px solid #ccc; margin-top: 20px; }
    @media (max-width: 768px) { .container { padding: 10px; } nav { flex-direction: column; align-items: center; } }