* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff5722;
            --accent: #4caf50;
            --light: #f5f5f5;
            --dark: #212121;
            --gray: #757575;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.7;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--primary);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(90deg, #ff9800, #ff5722);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: var(--secondary);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-radius: 5px;
            font-weight: 600;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            padding: 2.5rem 0;
            text-align: center;
            border-radius: 10px;
            margin-bottom: 3rem;
            box-shadow: var(--shadow);
        }
        .search-section h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #e64a19;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background-color: white;
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2rem;
            border-bottom: 2px solid var(--light);
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .article-body {
            font-size: 1.1rem;
        }
        .article-body > * {
            margin-bottom: 1.8rem;
        }
        .article-body h2 {
            color: var(--primary);
            font-size: 2rem;
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e0e0e0;
        }
        .article-body h3 {
            color: var(--dark);
            font-size: 1.6rem;
            margin-top: 2rem;
        }
        .article-body p {
            text-align: justify;
        }
        .highlight-box {
            background-color: #e3f2fd;
            border-left: 5px solid var(--primary);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .highlight-box strong {
            color: var(--primary);
            display: block;
            margin-bottom: 0.5rem;
            font-size: 1.2rem;
        }
        .feature-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .feature-image img {
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin: 0 auto;
            max-height: 500px;
            object-fit: cover;
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .tip-card {
            background: linear-gradient(135deg, #fff8e1, #ffecb3);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-left: 5px solid #ff9800;
        }
        .tip-card h4 {
            color: #e65100;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 10px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--light);
            font-size: 1.4rem;
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            font-size: 2rem;
            color: #ffc107;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-form select,
        .rating-form textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            resize: vertical;
        }
        .rating-form button {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: #388e3c;
        }
        .comment-widget .comment-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .comment-item {
            border-bottom: 1px solid #eee;
            padding-bottom: 1.5rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .comment-date {
            font-size: 0.85rem;
            color: var(--gray);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .comment-form input,
        .comment-form textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .long-tail-links {
            background-color: white;
            padding: 2.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .long-tail-links h2 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            text-align: center;
            font-size: 1.8rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background-color: #f5f5f5;
            padding: 1rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e0e0e0;
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--dark);
            display: block;
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: white;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        .copyright {
            color: #bdbdbd;
            font-size: 0.9rem;
            border-top: 1px solid #424242;
            padding-top: 1.5rem;
            width: 100%;
        }
        .text-center {
            text-align: center;
        }
        .text-bold {
            font-weight: 700;
        }
        .text-highlight {
            color: var(--secondary);
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        @media (max-width: 768px) {
            .mobile-nav-toggle {
                display: block;
            }
            .desktop-nav {
                display: none;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .article {
                padding: 1.5rem;
            }
            .search-section h2 {
                font-size: 1.6rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input,
            .search-button {
                width: 100%;
                border-radius: 0;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }