* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a73e8;
            --secondary-color: #0d47a1;
            --accent-color: #ff6d00;
            --text-dark: #202124;
            --text-light: #5f6368;
            --bg-light: #f8f9fa;
            --bg-dark: #1e1e1e;
            --border-color: #dadce0;
            --success-color: #34a853;
            --warning-color: #f9ab00;
            --card-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            --transition-speed: 0.3s;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: #ffffff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: var(--secondary-color);
        }
        .my-logo i {
            color: var(--accent-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        nav a {
            font-weight: 500;
            color: var(--text-dark);
            padding: 5px 0;
            position: relative;
        }
        nav a:hover {
            color: var(--primary-color);
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: width var(--transition-speed);
        }
        nav a:hover::after {
            width: 100%;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--bg-light);
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: var(--text-light);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 35px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin: 25px 0 12px;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--text-dark);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .last-updated {
            background-color: #e8f0fe;
            padding: 8px 15px;
            border-radius: 4px;
            font-weight: 500;
        }
        .highlight-box {
            background-color: #f1f8ff;
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform var(--transition-speed);
        }
        .featured-image img:hover {
            transform: scale(1.01);
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .content-link {
            background-color: #f8f9fa;
            padding: 3px 6px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
            font-weight: 500;
        }
        .content-link:hover {
            background-color: #e8f0fe;
            border-color: var(--primary-color);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--secondary-color);
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 15px;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-right: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background-color var(--transition-speed);
        }
        .search-btn:hover {
            background-color: var(--secondary-color);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.5rem;
            color: #ddd;
            margin-bottom: 10px;
        }
        .star {
            cursor: pointer;
            transition: color var(--transition-speed);
        }
        .star:hover,
        .star.active {
            color: var(--warning-color);
        }
        .form-group {
            margin-bottom: 15px;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: background-color var(--transition-speed);
        }
        .submit-btn:hover {
            background-color: var(--secondary-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
        .related-links li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark);
        }
        .related-links a:hover {
            color: var(--primary-color);
        }
        .related-links i {
            color: var(--accent-color);
            font-size: 0.9rem;
        }
        .comments-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid var(--border-color);
        }
        .comment {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 20px;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--secondary-color);
        }
        .comment-date {
            color: var(--text-light);
        }
        footer {
            background-color: var(--bg-dark);
            color: white;
            padding: 50px 0 30px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
            display: block;
        }
        .footer-description {
            color: #aaa;
            line-height: 1.6;
        }
        .footer-links h3,
        .footer-contact h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: white;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #aaa;
        }
        .footer-links a:hover {
            color: white;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.9rem;
            transition: background-color var(--transition-speed);
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        friend-link a {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 15px;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .mobile-menu-btn {
                display: block;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            .article-content {
                padding: 20px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .sidebar-widget {
                padding: 20px;
            }
        }
        .text-bold {
            font-weight: 700;
        }
        .text-accent {
            color: var(--accent-color);
        }
        .text-primary {
            color: var(--primary-color);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .section-divider {
            height: 1px;
            background-color: var(--border-color);
            margin: 40px 0;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.5s ease-out;
        }