* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background: #f8f9fa; }
        body { max-width: 1200px; margin: 0 auto; background: #fff; box-shadow: 0 0 20px rgba(0,0,0,0.05); }
        .site-header { background: linear-gradient(135deg, #0d3b66 0%, #1a5a96 100%); color: white; padding: 1rem 2rem; position: sticky; top: 0; z-index: 1000; }
        .header-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        .my-logo { font-size: 2.2rem; font-weight: 800; letter-spacing: 1px; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .my-logo a { color: #f4d35e; text-decoration: none; transition: color 0.3s; }
        .my-logo a:hover { color: #fff; }
        .mobile-toggle { display: none; font-size: 1.8rem; cursor: pointer; }
        .main-nav ul { display: flex; list-style: none; gap: 1.5rem; }
        .main-nav a { color: #e9ecef; text-decoration: none; font-weight: 600; padding: 0.5rem 0.8rem; border-radius: 4px; transition: all 0.3s; }
        .main-nav a:hover, .main-nav a.active { background: rgba(244, 211, 94, 0.2); color: #f4d35e; }
        .search-box { margin-top: 1rem; width: 100%; max-width: 500px; }
        .search-form { display: flex; }
        .search-input { flex-grow: 1; padding: 0.7rem 1rem; border: none; border-radius: 4px 0 0 4px; font-size: 1rem; }
        .search-btn { background: #f4d35e; color: #0d3b66; border: none; padding: 0 1.5rem; border-radius: 0 4px 4px 0; cursor: pointer; font-weight: bold; transition: background 0.3s; }
        .search-btn:hover { background: #e6c34a; }
        .breadcrumb { padding: 1rem 2rem; background: #e9ecef; font-size: 0.9rem; }
        .breadcrumb a { color: #0d3b66; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { padding: 2rem; }
        article { max-width: 900px; margin: 0 auto; }
        h1 { color: #0d3b66; font-size: 2.8rem; margin-bottom: 1.5rem; border-bottom: 3px solid #f4d35e; padding-bottom: 0.5rem; }
        h2 { color: #1a5a96; font-size: 2rem; margin: 2.5rem 0 1rem; padding-top: 1rem; border-top: 1px solid #eee; }
        h3 { color: #2a6db0; font-size: 1.6rem; margin: 2rem 0 1rem; }
        h4 { color: #3d7dc0; font-size: 1.3rem; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; text-align: justify; hyphens: auto; }
        .intro { font-size: 1.2rem; color: #555; background: #f8f9fa; padding: 1.5rem; border-left: 4px solid #f4d35e; margin-bottom: 2.5rem; }
        .highlight { background: linear-gradient(120deg, #f4d35e30 0%, #f4d35e10 100%); padding: 1.5rem; border-radius: 8px; margin: 2rem 0; border-left: 5px solid #f4d35e; }
        .highlight strong { color: #0d3b66; }
        .content-img { max-width: 100%; height: auto; display: block; margin: 2.5rem auto; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); transition: transform 0.5s; }
        .content-img:hover { transform: scale(1.02); }
        emoji { font-size: 1.2em; margin-right: 0.3em; }
        .link-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; margin: 2rem 0; }
        .link-card { background: #f1f8ff; padding: 1.2rem; border-radius: 8px; border: 1px solid #d0e3ff; transition: all 0.3s; }
        .link-card:hover { background: #e1f0ff; transform: translateY(-3px); box-shadow: 0 5px 12px rgba(0,0,0,0.08); }
        .link-card a { color: #1a5a96; font-weight: 600; text-decoration: none; }
        .link-card a:hover { text-decoration: underline; }
        .link-card p { margin-bottom: 0; font-size: 0.95rem; color: #555; }
        .interactive-section { background: #f8f9fa; padding: 2rem; border-radius: 10px; margin: 3rem 0; }
        .interactive-section h3 { margin-top: 0; }
        .form-group { margin-bottom: 1.5rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #444; }
        input, textarea, select { width: 100%; padding: 0.8rem; border: 1px solid #ccc; border-radius: 5px; font-family: inherit; font-size: 1rem; }
        textarea { min-height: 120px; resize: vertical; }
        .rating { display: flex; gap: 0.5rem; margin: 1rem 0; }
        .rating input { display: none; }
        .rating label { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .rating input:checked ~ label { color: #ddd; }
        .rating label:hover, .rating label:hover ~ label { color: #f4d35e; }
        .rating input:checked + label, .rating input:checked + label ~ label { color: #f4d35e; }
        .submit-btn { background: #0d3b66; color: white; border: none; padding: 0.9rem 2rem; border-radius: 5px; font-size: 1rem; font-weight: bold; cursor: pointer; transition: background 0.3s; }
        .submit-btn:hover { background: #1a5a96; }
        footer { background: #0d3b66; color: #e9ecef; padding: 3rem 2rem 1.5rem; margin-top: 4rem; }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2.5rem; margin-bottom: 2.5rem; }
        .footer-section h4 { color: #f4d35e; margin-bottom: 1.2rem; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #bcd0e8; text-decoration: none; transition: color 0.3s; }
        .footer-links a:hover { color: #f4d35e; text-decoration: underline; }
        friend-link { display: inline-block; background: #1a5a96; color: white; padding: 0.5rem 1rem; margin: 0.3rem; border-radius: 20px; text-decoration: none; font-size: 0.9rem; transition: all 0.3s; }
        friend-link:hover { background: #f4d35e; color: #0d3b66; transform: translateY(-2px); }
        .copyright { text-align: center; padding-top: 1.5rem; border-top: 1px solid #2a6db0; font-size: 0.9rem; color: #bcd0e8; }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .main-nav { width: 100%; display: none; }
            .main-nav.active { display: block; margin-top: 1rem; }
            .main-nav ul { flex-direction: column; gap: 0.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .header-top { flex-direction: column; align-items: flex-start; }
            .search-box { width: 100%; }
        }