:root {
            --primary-color: #0055A4; 
            --secondary-color: #FF4B00; 
            --accent-color: #00A859; 
            --dark-color: #1A1A2E;
            --light-color: #F8F9FA;
            --gray-color: #6C757D;
            --text-color: #333;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #fff;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .desktop-nav ul {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .mobile-nav {
            display: none;
            background: #fff;
            padding: 20px;
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .breadcrumb {
            background: #f1f1f1;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: var(--gray-color);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color), #003366);
            color: white;
            padding: 60px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .search-box {
            max-width: 600px;
            margin: 30px auto;
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .search-box h2 {
            margin-bottom: 20px;
            color: var(--dark-color);
            text-align: center;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #ddd;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #e03e00;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .article-content h2 {
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .article-content h3 {
            color: var(--dark-color);
            margin: 30px 0 15px;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .caption {
            font-size: 0.9rem;
            color: var(--gray-color);
            margin-top: 10px;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .widget {
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            margin-bottom: 20px;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .stars .active {
            color: #FFD700;
        }
        .rating-widget input, .rating-widget textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-widget button {
            background: var(--accent-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background: #008e48;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            resize: vertical;
        }
        .link-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid #eee;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            margin-bottom: 20px;
            color: #fff;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 15px;
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero {
                padding: 40px 20px;
            }
            .article-content, .widget {
                padding: 25px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 8px;
                margin-bottom: 10px;
            }
            .search-form button {
                border-radius: 8px;
                padding: 15px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }
        .text-bold {
            font-weight: 700;
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 30px;
        }
        .mt-3 {
            margin-top: 30px;
        }
        .tag {
            display: inline-block;
            background: #eef4ff;
            color: var(--primary-color);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin: 5px;
        }