* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        html { scroll-behavior: smooth; }
        body { background-color: #f9f9f9; color: #333; line-height: 1.7; overflow-x: hidden; }
        .site-header { background: linear-gradient(135deg, #1a4f7c, #2c8c99); color: white; padding: 1rem 2rem; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; max-width: 1400px; margin: 0 auto; }
        .my-logo { font-size: 2.2rem; font-weight: 800; letter-spacing: 2px; color: #ffd43b; text-decoration: none; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); transition: transform 0.3s ease; }
        .my-logo:hover { transform: scale(1.05); }
        .main-nav { display: flex; }
        .nav-list { display: flex; list-style: none; gap: 2rem; }
        .nav-list a { color: white; text-decoration: none; font-weight: 600; padding: 0.5rem 1rem; border-radius: 5px; transition: background 0.3s, color 0.3s; }
        .nav-list a:hover { background: rgba(255, 255, 255, 0.2); color: #ffd43b; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; }
        .breadcrumb { background: #eaeaea; padding: 0.8rem 2rem; font-size: 0.9rem; max-width: 1400px; margin: 0 auto; }
        .breadcrumb a { color: #1a4f7c; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .container { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; max-width: 1400px; margin: 2rem auto; padding: 0 2rem; }
        @media (max-width: 1024px) { .container { grid-template-columns: 1fr; } }
        main article { background: white; padding: 3rem; border-radius: 15px; box-shadow: 0 6px 20px rgba(0,0,0,0.08); }
        h1 { color: #1a4f7c; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; border-bottom: 4px solid #ffd43b; padding-bottom: 1rem; }
        h2 { color: #2c8c99; font-size: 2rem; margin-top: 3rem; margin-bottom: 1.2rem; }
        h3 { color: #444; font-size: 1.6rem; margin-top: 2rem; margin-bottom: 1rem; }
        h4 { color: #666; font-size: 1.3rem; margin-top: 1.5rem; margin-bottom: 0.8rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        .intro { font-size: 1.3rem; color: #555; background: #f0f8ff; padding: 1.5rem; border-left: 5px solid #2c8c99; border-radius: 0 10px 10px 0; margin-bottom: 2.5rem; }
        .highlight { background: linear-gradient(120deg, #ffd43b80 0%, #ffd43b80 100%); padding: 0.2rem 0.5rem; border-radius: 3px; font-weight: 600; }
        .feature-img { width: 100%; max-height: 500px; object-fit: cover; border-radius: 12px; margin: 2rem 0; box-shadow: 0 8px 16px rgba(0,0,0,0.1); transition: transform 0.5s ease; }
        .feature-img:hover { transform: scale(1.008); }
        blockquote { font-style: italic; color: #555; border-left: 4px solid #2c8c99; padding-left: 2rem; margin: 2.5rem 0; }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        a.content-link { color: #1a4f7c; text-decoration: underline; font-weight: 600; }
        a.content-link:hover { color: #ff6b6b; }
        aside { background: white; padding: 2rem; border-radius: 15px; box-shadow: 0 6px 20px rgba(0,0,0,0.08); align-self: start; position: sticky; top: 140px; }
        .sidebar-widget { margin-bottom: 2.5rem; }
        .sidebar-widget h3 { font-size: 1.4rem; color: #1a4f7c; border-bottom: 2px solid #eee; padding-bottom: 0.7rem; margin-bottom: 1.2rem; }
        .search-box, .comment-box, .rating-box { background: #f8f9fa; padding: 1.8rem; border-radius: 10px; margin-bottom: 2rem; border: 1px solid #dee2e6; }
        .search-box form, .comment-box form, .rating-box form { display: flex; flex-direction: column; gap: 1rem; }
        input, textarea, select { padding: 0.9rem; border: 1px solid #ccc; border-radius: 8px; font-size: 1rem; width: 100%; }
        button, .btn { background: linear-gradient(to right, #2c8c99, #1a4f7c); color: white; border: none; padding: 1rem 1.8rem; border-radius: 8px; font-weight: 700; cursor: pointer; transition: all 0.3s ease; font-size: 1rem; }
        button:hover, .btn:hover { background: linear-gradient(to right, #1a4f7c, #2c8c99); transform: translateY(-3px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
        .stars { display: flex; gap: 0.5rem; font-size: 1.8rem; color: #ffd43b; margin-bottom: 1rem; }
        .star { cursor: pointer; transition: transform 0.2s; }
        .star:hover { transform: scale(1.2); }
        footer { background: #1a1a1a; color: #ddd; padding: 3rem 2rem 1.5rem; margin-top: 4rem; }
        .footer-content { display: flex; flex-wrap: wrap; justify-content: space-between; max-width: 1400px; margin: 0 auto; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 { color: #ffd43b; margin-bottom: 1.5rem; font-size: 1.4rem; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #aaa; text-decoration: none; transition: color 0.3s; }
        .footer-links a:hover { color: #ffd43b; }
        friend-link { display: block; background: #2a2a2a; padding: 1rem; margin: 1rem 0; border-radius: 8px; border-left: 4px solid #2c8c99; }
        friend-link a { color: #4fc3f7; font-weight: 600; text-decoration: none; }
        .copyright { text-align: center; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid #444; color: #999; font-size: 0.9rem; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #1a4f7c; flex-direction: column; padding: 1rem; box-shadow: 0 10px 15px rgba(0,0,0,0.1); }
            .main-nav.active { display: flex; }
            .nav-list { flex-direction: column; gap: 0.5rem; }
            .container, .breadcrumb { padding: 0 1rem; }
            main article { padding: 2rem 1.5rem; }
            h1 { font-size: 2.2rem; }
            .header-container, .footer-content { flex-direction: column; }
        }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
        article, aside { animation: fadeIn 0.8s ease-out; }