* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        ul, ol {
            list-style-position: inside;
            padding-left: 1.2em;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 0.8em;
            color: #1a365d;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #0d47a1;
            padding-bottom: 0.3em;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2rem;
            padding-left: 0.5rem;
            border-left: 5px solid #1976d2;
        }
        h3 {
            font-size: 1.8rem;
            color: #2c5282;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #4a5568;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.2em;
            font-size: 1.1rem;
        }
        strong, b {
            color: #0d47a1;
            font-weight: 700;
        }
        em {
            font-style: italic;
            color: #555;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0d47a1 0%, #1976d2 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #ffd700;
        }
        .logo:hover {
            color: #ffd700;
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background-color: #ff6f00;
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background-color: #e65100;
        }
        nav {
            margin-top: 1.5rem;
            width: 100%;
        }
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffd700;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: 0.3s;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid #bbdefb;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding-left: 0;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #666;
        }
        .breadcrumb a {
            color: #1976d2;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        .content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        aside {
            background-color: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: #0d47a1;
            border-bottom: 2px solid #e0e0e0;
            padding-bottom: 0.5rem;
        }
        .sidebar-links {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-links li {
            margin-bottom: 0.8rem;
        }
        .sidebar-links a {
            color: #2c5282;
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .sidebar-links a:hover {
            background-color: #e3f2fd;
            padding-left: 1rem;
            color: #0d47a1;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background-color: #f5f5f5;
        }
        .article-section {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #eaeaea;
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            border-left: 5px solid #1976d2;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .interactive-section {
            background-color: #f9f9f9;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffc107;
        }
        .submit-btn {
            background-color: #0d47a1;
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background-color: #1565c0;
        }
        footer {
            background-color: #1a365d;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #ffd700;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        friend-link a {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 0.6rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        friend-link a:hover {
            background-color: #1976d2;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #bbb;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .search-form {
                width: 100%;
                max-width: 100%;
            }
            .hamburger {
                display: flex;
                position: absolute;
                top: 2rem;
                right: 20px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #0d47a1;
                margin-top: 1rem;
                padding: 1rem;
                border-radius: 8px;
            }
            .nav-links.active {
                display: flex;
            }
            .content {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-section {
            animation: fadeIn 0.6s ease-out;
        }
        .pulse {
            display: inline-block;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }