* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-blue: #0a2e6b;
            --accent-red: #d50032;
            --light-gray: #f5f7fa;
            --medium-gray: #e1e5eb;
            --dark-gray: #2c3e50;
            --text-color: #333;
            --white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light-gray);
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #1a4a9c 100%);
            color: var(--white);
            padding: 1.5rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.4rem;
            font-weight: 900;
            letter-spacing: 1px;
            color: var(--white);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-red);
        }
        .my-logo:hover {
            color: var(--white);
            transform: scale(1.02);
        }
        .search-container {
            flex-grow: 1;
            max-width: 500px;
            margin: 0 2rem;
        }
        #search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        #search-input {
            flex-grow: 1;
            padding: 0.9rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        #search-btn {
            background-color: var(--accent-red);
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        #search-btn:hover {
            background-color: #b00028;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .desktop-nav a {
            color: var(--white);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: #ffcc00;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-red);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background-color: var(--dark-gray);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            padding: 1rem 0;
            z-index: 999;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            text-align: center;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            color: var(--white);
            font-size: 1.2rem;
            padding: 0.8rem;
            display: block;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: var(--medium-gray);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
            font-size: 0.95rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: var(--dark-gray);
        }
        .breadcrumb a {
            color: var(--primary-blue);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2.5rem 0;
        }
        .article-content {
            background-color: var(--white);
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background-color: var(--white);
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            align-self: start;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-red);
            padding-bottom: 0.7rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--dark-gray);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--medium-gray);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-blue);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--dark-gray);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--dark-gray);
            background-color: #f0f8ff;
            padding: 1.5rem;
            border-left: 5px solid var(--accent-red);
            border-radius: 5px;
            margin-bottom: 2rem;
        }
        strong {
            color: var(--primary-blue);
        }
        em {
            color: var(--accent-red);
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid #28a745;
            margin: 1.8rem 0;
        }
        .article-image {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .article-image img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            transition: transform 0.5s ease;
        }
        .article-image img:hover {
            transform: scale(1.01);
        }
        .article-image figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-item {
            background-color: var(--primary-blue);
            color: white;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-block;
        }
        .link-item:hover {
            background-color: var(--accent-red);
            transform: translateY(-3px);
            color: white;
        }
        .interactive-module {
            background-color: var(--light-gray);
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            border-top: 5px solid var(--accent-red);
        }
        .module-title {
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .module-title i {
            color: var(--accent-red);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-gray);
        }
        input, textarea, select {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--medium-gray);
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-blue);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: var(--medium-gray);
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffcc00;
        }
        .btn-submit {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        .btn-submit:hover {
            background-color: var(--accent-red);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-red);
            margin-bottom: 1.2rem;
        }
        .widget-list {
            list-style: none;
        }
        .widget-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #ddd;
        }
        .widget-list a {
            display: block;
            padding: 0.5rem 0;
            transition: padding-left 0.3s;
        }
        .widget-list a:hover {
            padding-left: 10px;
            color: var(--accent-red);
        }
        .site-footer {
            background-color: var(--dark-gray);
            color: var(--white);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            color: #ffcc00;
        }
        .footer-links h4 {
            color: #ffcc00;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: #ffcc00;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            text-align: center;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #555;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .search-container {
                max-width: 300px;
                margin: 0 1rem;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .search-container {
                order: 3;
                flex: 1 0 100%;
                margin: 1rem 0 0;
                max-width: 100%;
            }
            .my-logo {
                font-size: 2rem;
            }
            .article-content {
                padding: 1.8rem;
            }
            .interactive-module {
                padding: 1.5rem;
            }
            .link-list {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .lead {
                font-size: 1.1rem;
                padding: 1rem;
            }
            .btn-submit {
                width: 100%;
            }
        }