* {
            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: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        .header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: transform 0.3s ease;
        }
        .logo:hover {
            transform: scale(1.05);
        }
        .logo i {
            color: #ffcc00;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-link:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: #ffcc00;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 300px;
            height: 100vh;
            background: #1a237e;
            padding: 2rem;
            transition: right 0.4s ease;
            z-index: 1100;
            overflow-y: auto;
        }
        .mobile-nav.active {
            right: 0;
        }
        .mobile-nav-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
        }
        .close-menu {
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .mobile-nav-link {
            color: white;
            text-decoration: none;
            font-size: 1.2rem;
            padding: 0.8rem;
            border-radius: 6px;
            transition: background 0.3s ease;
        }
        .mobile-nav-link:hover {
            background: rgba(255,255,255,0.1);
        }
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 1050;
            display: none;
        }
        .overlay.active {
            display: block;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f8f9fa;
            border-bottom: 1px solid #eaeaea;
        }
        .breadcrumb-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }
        .breadcrumb-links a {
            color: #3949ab;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .breadcrumb-links a:hover {
            color: #1a237e;
            text-decoration: underline;
        }
        .breadcrumb-links .separator {
            color: #666;
        }
        .search-container {
            margin: 2rem auto;
            max-width: 600px;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background: #3949ab;
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-button:hover {
            background: #283593;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (min-width: 992px) {
            .main-content {
                grid-template-columns: 3fr 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #eee;
            padding-bottom: 1.5rem;
        }
        .article-title {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            color: #666;
            font-size: 0.95rem;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        .section-title {
            font-size: 1.8rem;
            color: #283593;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #c3cfe2;
        }
        .section-title i {
            margin-right: 10px;
            color: #ffcc00;
        }
        .content-paragraph {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: linear-gradient(120deg, #ffcc0080 0%, #ffcc0080 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .tip-box {
            background: #e3f2fd;
            border-left: 4px solid #3949ab;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-title {
            color: #1a237e;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            margin-top: 0.8rem;
            color: #666;
            font-style: italic;
            font-size: 0.95rem;
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            align-self: start;
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: #283593;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .featured-list {
            list-style: none;
        }
        .featured-item {
            margin-bottom: 1rem;
            padding: 0.8rem;
            background: #f8f9fa;
            border-radius: 6px;
            transition: background 0.3s ease;
        }
        .featured-item:hover {
            background: #e3f2fd;
        }
        .featured-link {
            color: #333;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .rating-section {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .rating-title {
            font-size: 1.5rem;
            color: #283593;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            color: #555;
        }
        .form-input,
        .form-textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: #3949ab;
            box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.1);
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background: linear-gradient(90deg, #3949ab, #283593);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            align-self: flex-start;
        }
        .submit-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(57, 73, 171, 0.2);
        }
        .web-links-container {
            background: #f8f9fa;
            padding: 2rem 0;
            margin: 2rem 0;
            border-top: 2px solid #eaeaea;
            border-bottom: 2px solid #eaeaea;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: #3949ab;
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .footer {
            background: linear-gradient(90deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #ffcc00;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #e0e0e0;
            text-decoration: none;
            transition: color 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-links a:hover {
            color: #ffcc00;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #b0b0b0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 2rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .rating-stars {
                justify-content: center;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }