* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        a {
            color: #2c5282;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .main-header {
            background: linear-gradient(90deg, #1a365d 0%, #2d3748 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            background: linear-gradient(90deg, #63b3ed, #90cdf4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo a:hover {
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #cbd5e0;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            color: #90cdf4;
            border-bottom-color: #90cdf4;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background: #edf2f7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #2d3748;
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(45, 55, 72, 0.9)), url('https://images.unsplash.com/photo-1585504182727-4c7b6a7cfb9d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 4rem 2rem;
            border-radius: 0 0 20px 20px;
            margin-bottom: 3rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(90deg, #e53e3e, #c53030);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: 0 6px 15px rgba(229, 62, 62, 0.4);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(229, 62, 62, 0.5);
            color: white;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 4rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .article-content h2 {
            color: #1a365d;
            font-size: 2.2rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #e2e8f0;
        }
        .article-content h2:first-of-type {
            margin-top: 0;
        }
        .article-content h3 {
            color: #2d3748;
            font-size: 1.6rem;
            margin: 1.8rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, #fed7d7, #feebc8);
            padding: 1.5rem;
            border-left: 5px solid #e53e3e;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .key-term {
            font-weight: 800;
            color: #1a365d;
            background-color: #ebf8ff;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
        }
        .widget h3 {
            color: #1a365d;
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #e2e8f0;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-form input:focus {
            border-color: #4299e1;
        }
        .search-form button {
            background: #4299e1;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #3182ce;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #f6ad55;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars span {
            margin: 0 0.1rem;
            transition: transform 0.2s;
        }
        .stars span:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            height: 120px;
            padding: 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            margin-bottom: 1rem;
            outline: none;
        }
        .comment-form textarea:focus {
            border-color: #4299e1;
        }
        .comment-form button {
            background: #38a169;
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background: #2f855a;
        }
        .footer-links {
            background: #2d3748;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .footer-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: #4a5568;
            padding: 1.2rem;
            border-radius: 8px;
            transition: transform 0.3s, background 0.3s;
        }
        .web-link:hover {
            background: #5a6578;
            transform: translateY(-5px);
        }
        .web-link a {
            color: #cbd5e0;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: white;
        }
        .main-footer {
            background: #1a202c;
            color: #a0aec0;
            text-align: center;
            padding: 2.5rem 0;
            font-size: 0.95rem;
        }
        .footer-nav {
            margin-bottom: 1.5rem;
        }
        .footer-nav ul {
            display: flex;
            justify-content: center;
            list-style: none;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .footer-nav a {
            color: #cbd5e0;
        }
        .footer-nav a:hover {
            color: #90cdf4;
        }
        .copyright {
            border-top: 1px solid #4a5568;
            padding-top: 1.5rem;
            max-width: 800px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #2d3748;
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active ul {
                display: flex;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .footer-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
        }