* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1a73e8;
            --secondary-color: #34a853;
            --accent-color: #ea4335;
            --dark-color: #202124;
            --light-color: #f8f9fa;
            --text-color: #333;
            --gray-color: #5f6368;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f5f7fa;
            color: var(--text-color);
            line-height: 1.6;
        }
        .header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            padding: 15px 0;
        }
        .logo span {
            color: var(--accent-color);
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            padding: 5px 10px;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-link:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark-color);
            cursor: pointer;
            padding: 10px;
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: white;
            padding: 20px;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav-link {
            padding: 12px 0;
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            border-bottom: 1px solid #eee;
        }
        .mobile-nav-link:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            background-color: #f1f3f4;
            padding: 12px 0;
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 10px;
            font-size: 0.9rem;
        }
        .breadcrumb-item a {
            color: var(--gray-color);
            text-decoration: none;
        }
        .breadcrumb-item a:hover {
            color: var(--primary-color);
        }
        .breadcrumb-item::after {
            content: ">";
            margin-left: 10px;
            color: var(--gray-color);
        }
        .breadcrumb-item:last-child::after {
            content: "";
        }
        .container {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 30px;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 20px;
        }
        .article-title {
            font-size: 2.2rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            line-height: 1.3;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .article-content h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .article-content h3 {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin: 25px 0 10px;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #e8f0fe;
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .highlight strong {
            color: var(--primary-color);
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #0d62d9;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .active {
            color: #ffc107;
        }
        .rating-input {
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
        }
        .rating-submit {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-submit:hover {
            background-color: #2d8c47;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .comment-input, .comment-textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .comment-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-submit {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .comment-submit:hover {
            background-color: #d33426;
        }
        .footer-links {
            background-color: white;
            padding: 40px 20px;
            margin-top: 40px;
        }
        .footer-links-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: #f8f9fa;
            padding: 15px;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e8f0fe;
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 30px 20px;
            text-align: center;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            background-color: #e8f0fe;
            padding: 2px 6px;
            border-radius: 3px;
            font-weight: 600;
            color: var(--primary-color);
        }
        .tip-box {
            background-color: #e6f4ea;
            border-left: 4px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .warning-box {
            background-color: #fce8e6;
            border-left: 4px solid var(--accent-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 1.8rem;
            }
            .article {
                padding: 20px;
            }
            .container {
                padding: 0 15px;
            }
            .footer-links-container {
                grid-template-columns: 1fr;
            }
        }