* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style-position: inside;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Black', Gadget, sans-serif;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #222;
        }
        h1 {
            font-size: 2.8rem;
            color: #FFCC00;
            text-shadow: 3px 3px 0 #0066CC, 6px 6px 0 rgba(0,0,0,0.1);
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #0066CC;
            border-bottom: 3px dashed #FFCC00;
            padding-bottom: 0.5rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #333;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        strong {
            color: #0066CC;
            font-weight: 800;
        }
        em {
            color: #FF6600;
        }
        header {
            background: linear-gradient(135deg, #000080 0%, #0066CC 100%);
            color: #fff;
            padding: 1rem 0;
            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;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFCC00;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo span {
            color: #fff;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            gap: 1.8rem;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background-color: #FFCC00;
            color: #0066CC;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #FFCC00;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9ecef;
            font-size: 0.95rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #0066CC;
        }
        .search-box {
            background-color: #fff;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,102,204,0.1);
            margin: 2rem 0;
            text-align: center;
        }
        .search-box h3 {
            color: #0066CC;
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #0066CC;
            border-radius: 8px 0 0 8px;
            font-size: 1.1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            border-color: #FFCC00;
        }
        .search-btn {
            background-color: #0066CC;
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background-color 0.3s;
        }
        .search-btn:hover {
            background-color: #FF6600;
        }
        main {
            padding: 2rem 0;
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 1.5rem;
            border-bottom: 2px dotted #ddd;
            margin-bottom: 2rem;
            font-size: 0.95rem;
            color: #666;
        }
        .update-time {
            color: #FF6600;
            font-weight: bold;
        }
        .featured-image {
            width: 100%;
            margin: 2rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 5px solid #FFCC00;
        }
        .content-section {
            padding: 1.5rem 0;
        }
        .content-section ul, .content-section ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .content-section li {
            margin-bottom: 0.8rem;
            padding-left: 0.5rem;
        }
        .internal-links {
            background-color: #f0f8ff;
            border-left: 5px solid #0066CC;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .internal-links h4 {
            color: #0066CC;
            margin-top: 0;
        }
        .internal-links a {
            color: #FF6600;
            font-weight: 600;
            transition: color 0.3s;
        }
        .internal-links a:hover {
            color: #000080;
            text-decoration: underline;
        }
        .user-interaction {
            background-color: #f9f9f9;
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
            border: 1px solid #ddd;
        }
        .rating-form, .comment-form {
            margin-top: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #FFCC00;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            border-color: #0066CC;
            outline: none;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: #0066CC;
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background-color 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            background-color: #FF6600;
            transform: scale(1.03);
        }
        footer {
            background-color: #000080;
            color: #fff;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #FFCC00;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            display: block;
            margin-bottom: 0.8rem;
            color: #ddd;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #FFCC00;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background-color: rgba(255,204,0,0.1);
            border-radius: 8px;
            margin-bottom: 1rem;
            border-left: 4px solid #FFCC00;
        }
        friend-link a {
            color: #FFCC00;
            font-weight: bold;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                margin-bottom: 1rem;
                font-size: 1.8rem;
            }
            nav {
                width: 100%;
                justify-content: space-between;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #000080;
                padding: 1rem 0;
                border-radius: 8px;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            .search-btn {
                padding: 0.9rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, footer, .search-box, .user-interaction, .breadcrumb, .hamburger {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }