* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f7fa;
            padding-top: 80px; 
        }
        a {
            text-decoration: none;
            color: #0066cc;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #004499;
        }
        ul, ol {
            padding-left: 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        .header {
            background: linear-gradient(135deg, #1a237e, #283593);
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #4fc3f7;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #29b6f6;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #1a237e;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.75rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.75rem 2rem;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #5c6bc0;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        article {
            background-color: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 5px solid #4fc3f7;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #c5cae9;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 2rem 0 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5c6bc0;
            margin: 1.5rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.25rem;
            text-align: justify;
        }
        .highlight {
            background-color: #e3f2fd;
            padding: 1.5rem;
            border-left: 4px solid #2196f3;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
        }
        .featured-image img {
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .internal-links {
            list-style-type: none;
            padding: 1rem;
            background-color: #f8f9fa;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links li {
            margin-bottom: 0.75rem;
        }
        .update-time {
            font-style: italic;
            color: #666;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #ddd;
        }
        .search-box {
            margin: 2rem 0;
            padding: 1.5rem;
            background-color: #e8f5e9;
            border-radius: 8px;
            text-align: center;
        }
        .search-box form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-box input {
            flex: 1;
            padding: 0.75rem;
            border: 2px solid #4caf50;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-box button {
            background-color: #4caf50;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #388e3c;
        }
        .comments-section, .rating-section {
            margin: 3rem 0;
            padding: 2rem;
            background-color: #fff8e1;
            border-radius: 8px;
            border: 1px solid #ffd54f;
        }
        .comments-section h3, .rating-section h3 {
            color: #ff8f00;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .comment-form input, .comment-form textarea, .rating-form select {
            padding: 0.75rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button, .rating-form button {
            align-self: flex-start;
            background-color: #ff9800;
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .comment-form button:hover, .rating-form button:hover {
            background-color: #f57c00;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .stars i {
            color: #ffd740;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .stars i:hover {
            color: #ffab00;
        }
        .footer {
            background-color: #1a237e;
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-links h4 {
            color: #4fc3f7;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.75rem;
            color: #bbdefb;
        }
        friend-link:hover {
            color: #4fc3f7;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #c5cae9;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .header-container {
                padding: 1rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb {
                padding: 0.75rem 1rem;
            }
            .container {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .search-box form {
                flex-direction: column;
            }
            .search-box input, .search-box button {
                width: 100%;
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            .header, .footer, .search-box, .comments-section, .rating-section {
                display: none;
            }
            body {
                padding-top: 0;
                background: white;
            }
            article {
                box-shadow: none;
            }
        }