* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f5f5f5;
        }
        
        .container {
            max-width: 1172px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        header {
            background-color: #ffffff;
            border-bottom: 3px solid #00A4D1;
            padding: 30px 0;
            margin-bottom: 40px;
        }
        
        header .site-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #00A4D1;
            margin-bottom: 10px;
        }
        
        header .site-description {
            color: #666;
            font-size: 1.1rem;
        }
        
        nav {
            background-color: #fff;
            padding: 15px 0;
            margin-top: 20px;
            border-top: 1px solid #e0e0e0;
        }
        
        nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        
        nav ul li a {
            color: #333;
            text-decoration: none;
            font-weight: 500;
            font-size: 1.05rem;
            transition: color 0.3s ease;
        }
        
        nav ul li a:hover {
            color: #00A4D1;
        }
        
        .hero-section {
            background: linear-gradient(135deg, #00A4D1 0%, #0086b3 100%);
            color: white;
            padding: 60px 0;
            margin-bottom: 50px;
            text-align: center;
        }
        
        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        
        main {
            background-color: #ffffff;
            max-width: 900px;
            margin: 0 auto 50px;
            padding: 50px 40px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
        }
        
        article h2 {
            font-size: 2rem;
            color: #222;
            margin: 30px 0 20px;
            line-height: 1.4;
        }
        
        article h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 25px 0 15px;
            line-height: 1.4;
        }
        
        article h4 {
            font-size: 1.3rem;
            color: #444;
            margin: 20px 0 12px;
        }
        
        article p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            color: #555;
        }
        
        article ul, article ol {
            margin: 20px 0 20px 30px;
        }
        
        article li {
            margin-bottom: 10px;
            color: #555;
        }
        
        .transition-section {
            background-color: #f9f9f9;
            max-width: 900px;
            margin: 0 auto 50px;
            padding: 40px;
            border-radius: 8px;
            border-left: 4px solid #00A4D1;
        }
        
        .transition-section p {
            font-size: 1.05rem;
            color: #555;
            margin-bottom: 15px;
            line-height: 1.7;
        }
        
        {% if links %}
        .links-section {
            background-color: #ffffff;
            max-width: 900px;
            margin: 0 auto 50px;
            padding: 50px 40px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            border-top: 3px solid #00A4D1;
        }
        
        .links-section h2 {
            font-size: 2rem;
            color: #222;
            margin-bottom: 30px;
            text-align: center;
        }
        
        .links-section h3 {
            font-size: 1.5rem;
            color: #00A4D1;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        
        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px 30px;
            margin-bottom: 30px;
        }
        
        .links-section ul li {
            padding: 0;
        }
        
        .links-section ul li a {
            color: #333;
            text-decoration: none;
            font-size: 1rem;
            line-height: 1.6;
            transition: color 0.3s ease;
            display: inline-block;
        }
        
        .links-section ul li a:hover {
            color: #00A4D1;
            text-decoration: underline;
        }
        
        .links-section ul li a::before {
            content: "→ ";
            color: #00A4D1;
            font-weight: bold;
        }
        {% endif %}
        
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 30px 0;
            margin-top: 60px;
        }
        
        footer .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        footer a {
            color: #00A4D1;
            text-decoration: none;
        }
        
        footer a:hover {
            text-decoration: underline;
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            
            header .site-title {
                font-size: 1.8rem;
            }
            
            nav ul {
                flex-direction: column;
                gap: 15px;
                align-items: center;
            }
            
            main, .transition-section, .links-section {
                padding: 30px 25px;
                margin-bottom: 30px;
            }
            
            article h2 {
                font-size: 1.6rem;
            }
            
            article h3 {
                font-size: 1.4rem;
            }
            
            .hero-section {
                padding: 40px 20px;
            }
            
            {% if links %}
            .links-section ul {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            {% endif %}
            
            footer .container {
                flex-direction: column;
                text-align: center;
            }
        }
        
        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }
            
            header .site-title {
                font-size: 1.5rem;
            }
            
            main, .transition-section, .links-section {
                padding: 20px 15px;
            }
        }