:root {
            --primary-dark: #0a2a4a;
            --primary-accent: #f8c300;
            --secondary-accent: #d32f2f;
            --text-light: #f5f5f7;
            --text-dark: #333333;
            --bg-light: #ffffff;
            --bg-dark: #1a1a1a;
            --card-bg: #f8f9fa;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a3a5f 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-accent);
            text-transform: uppercase;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-accent);
        }
        .my-logo:hover {
            color: var(--text-light);
            transform: scale(1.02);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(248, 195, 0, 0.15);
            color: var(--primary-accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--primary-accent);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-light);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb {
            background-color: var(--card-bg);
            padding: 1rem;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .breadcrumb a:hover {
            color: var(--secondary-accent);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #777;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--bg-light);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background-color: var(--card-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary-dark);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-accent);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            padding-bottom: 1rem;
            border-bottom: 5px solid var(--primary-accent);
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-dark);
            margin: 2.5rem 0 1.5rem;
            padding-left: 1rem;
            border-left: 6px solid var(--secondary-accent);
            background: linear-gradient(to right, rgba(211, 47, 47, 0.05), transparent);
        }
        h3 {
            font-size: 1.6rem;
            color: #2c5282;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #ccc;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
            font-style: italic;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-dark);
            background-color: rgba(248, 195, 0, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--primary-accent);
            margin-bottom: 2.5rem;
        }
        .article-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            border: 5px solid white;
            transition: var(--transition);
        }
        .article-img:hover {
            transform: scale(1.01);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        strong {
            color: var(--secondary-accent);
            font-weight: 700;
        }
        em {
            color: #2d3748;
            background-color: #fefcbf;
            padding: 0 3px;
            font-style: normal;
            border-radius: 3px;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9db, #ffec99);
            border-left: 5px solid #f59f00;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .content-link {
            color: var(--primary-dark);
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-accent);
        }
        .content-link:hover {
            color: var(--secondary-accent);
            border-bottom-style: solid;
        }
        .interactive-form {
            background: linear-gradient(135deg, var(--card-bg), #e9ecef);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .form-title {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(248, 195, 0, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-dark), var(--secondary-accent));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.2);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .site-footer {
            background-color: var(--bg-dark);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: var(--primary-accent);
            margin-bottom: 1.5rem;
            font-style: normal;
            border-bottom: 2px solid #444;
            padding-bottom: 0.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a:hover {
            color: var(--primary-accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #2d3748;
            padding: 1rem;
            margin: 0.5rem 0;
            border-radius: 6px;
            border-left: 4px solid var(--primary-accent);
        }
        friend-link:hover {
            background-color: #4a5568;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                background-color: var(--primary-dark);
                padding: 1rem;
                border-radius: var(--border-radius);
            }
            .main-nav.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }