* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2a5db0;
            transition: color 0.3s;
        }
        a:hover {
            color: #1a3a7a;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            color: #1a365d;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid #e63946;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #4cc9f0;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: #2a5db0;
        }
        h4 {
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: #e63946;
            font-weight: 700;
        }
        em {
            font-style: italic;
            background-color: #fffacd;
            padding: 0 3px;
        }
        blockquote {
            border-left: 4px solid #4cc9f0;
            padding: 1rem 1.5rem;
            margin: 2rem 0;
            background-color: #f0f8ff;
            font-style: italic;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2a5db0 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-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: #4cc9f0;
            margin-right: 10px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        .main-nav a:hover {
            background-color: rgba(255,255,255,0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #1a365d;
        }
        .search-box {
            background-color: #e9f5ff;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
        }
        .search-box h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #2a5db0;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: #e63946;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .search-btn:hover {
            background-color: #c1121f;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        main {
            background-color: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            margin-top: 0;
            color: #1a365d;
            font-size: 1.5rem;
            border-bottom: 2px solid #4cc9f0;
            padding-bottom: 0.5rem;
        }
        .sidebar ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
        }
        .sidebar a {
            display: block;
            padding: 0.5rem 0.8rem;
            background-color: #f8f9fa;
            border-left: 3px solid #2a5db0;
            border-radius: 0 4px 4px 0;
            transition: all 0.3s;
        }
        .sidebar a:hover {
            background-color: #e9ecef;
            border-left-color: #e63946;
            transform: translateX(5px);
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .article-img img {
            width: 100%;
            height: auto;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #6c757d;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f8ff, #e6f7ff);
            border-left: 5px solid #4cc9f0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background-color: #fffacd;
            border-left: 5px solid #ffd700;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 5px 5px 0;
        }
        .tip:before {
            content: "💡 ";
            font-weight: bold;
        }
        .rating-section, .comments-section {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 600px;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #ffd700;
            margin: 0.5rem 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: #1a365d;
        }
        .form-control {
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #4cc9f0;
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: #2a5db0;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: #1a3a7a;
        }
        .web-links {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .web-links h3 {
            text-align: center;
            margin-bottom: 1.5rem;
        }
        .web-link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background-color: white;
            padding: 1rem;
            border-radius: 5px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
            border-left: 4px solid #2a5db0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
            border-left-color: #e63946;
        }
        .site-footer {
            background-color: #1a365d;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-col h4 {
            color: #4cc9f0;
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 2px solid rgba(76, 201, 240, 0.3);
            padding-bottom: 0.5rem;
        }
        .footer-col ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-col li {
            margin-bottom: 0.7rem;
        }
        .footer-col a {
            color: #d0e6ff;
        }
        .footer-col a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0c8ff;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            main, .sidebar {
                padding: 1.5rem;
            }
            .content-wrapper {
                gap: 2rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        main, .sidebar, .rating-section, .comments-section {
            animation: fadeIn 0.8s ease-out;
        }