:root {
            --primary: #0033A0; 
            --secondary: #FF0000; 
            --accent: #00C853; 
            --light: #F5F7FA;
            --dark: #1A202C;
            --gray: #718096;
            --border: #E2E8F0;
            --shadow: 0 4px 12px rgba(0, 51, 160, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
            --container-padding: clamp(1rem, 5vw, 2.5rem);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #ffffff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: -1px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: inline-block;
            transition: var(--transition);
        }
        .logo a:hover {
            transform: scale(1.03);
        }
        .logo span {
            color: var(--secondary);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
            align-items: center;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
            background: none;
            border: none;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child):after {
            content: '>';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #001a5e 100%);
            color: white;
            padding: 3rem 0;
            border-radius: var(--radius);
            margin-bottom: 3rem;
            text-align: center;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 1.5rem;
            opacity: 0.9;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            margin-top: 1.5rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 4rem;
        }
        .content-area {
            background: white;
        }
        .sidebar {
            background: var(--light);
            padding: 2rem;
            border-radius: var(--radius);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        article {
            margin-bottom: 3rem;
        }
        article h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
        }
        article h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        article p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            text-align: justify;
        }
        article strong {
            color: var(--primary);
            font-weight: 700;
        }
        article em {
            color: var(--secondary);
            font-style: italic;
        }
        .highlight-box {
            background-color: #E3F2FD;
            border-left: 5px solid var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 0.5rem;
            font-style: italic;
        }
        .link-list {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
        }
        .link-list a {
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .link-list a:hover {
            background-color: #e3ecff;
            padding-left: 1rem;
        }
        .link-list i {
            margin-right: 0.8rem;
            color: var(--secondary);
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .widget h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .widget h3 i {
            color: var(--secondary);
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 51, 160, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary), #0048D0);
            color: white;
            font-weight: 600;
            padding: 0.9rem 2rem;
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
            font-size: 1rem;
        }
        .btn:hover {
            background: linear-gradient(to right, #002D87, var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 51, 160, 0.2);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #e00000;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: rtl;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #FFD700;
        }
        .comments-section {
            margin-top: 3rem;
        }
        .comment {
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--border);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-family: 'Impact', sans-serif;
            font-size: 2rem;
            margin-bottom: 1rem;
            color: white;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #b0b7c3;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #2D3748;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2D3748;
            color: #b0b7c3;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                transform: translateY(-100%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 999;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .hero {
                padding: 2rem 0;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
        }
        @media (max-width: 480px) {
            :root {
                --container-padding: 1rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            article h2 {
                font-size: 1.6rem;
            }
            .widget {
                padding: 1rem;
            }
        }