* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #c0392b;
            --secondary-color: #2c3e50;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #1a1a1a;
            --text-color: #333;
            --light-text: #f8f9fa;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #f5f7fa;
            overflow-x: hidden;
        }
        .site-header {
            background-color: var(--secondary-color);
            color: var(--light-text);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-decoration: none;
            color: var(--light-text);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent-color);
            transform: scale(1.03);
        }
        .my-logo i {
            color: var(--primary-color);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-link {
            color: var(--light-text);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background-color: rgba(255,255,255,0.1);
            color: var(--accent-color);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .search-form {
            display: flex;
            margin-left: 1rem;
        }
        .search-input {
            padding: 0.6rem 1rem;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            width: 250px;
            background-color: rgba(255,255,255,0.9);
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--accent-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--light-text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 1rem 2rem;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb-item {
            font-size: 0.95rem;
        }
        .breadcrumb-item a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb-item a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #777;
        }
        .main-container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 1100px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 3rem;
            border-bottom: 2px solid var(--light-color);
            padding-bottom: 2rem;
        }
        .article-title {
            font-size: 2.8rem;
            color: var(--secondary-color);
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #666;
            font-size: 0.95rem;
            margin-top: 1.5rem;
        }
        .last-updated {
            background-color: #f0f7ff;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro-paragraph {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--secondary-color);
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-left: 4px solid var(--primary-color);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .emphasis {
            color: var(--primary-color);
            font-weight: 700;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: #555;
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            background-color: #f8f9fa;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .quote-author {
            text-align: right;
            font-weight: 600;
            margin-top: 1rem;
            color: #333;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .internal-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
            transition: var(--transition);
        }
        .internal-link:hover {
            color: var(--accent-color);
            border-bottom: 2px solid var(--accent-color);
        }
        .sidebar {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.8rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: var(--text-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--primary-color);
            font-size: 0.9rem;
        }
        .rating-widget {
            text-align: center;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1.5rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-input {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
        }
        .rating-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-btn:hover {
            background-color: var(--primary-color);
        }
        .comments-section {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 3rem;
            margin-top: 3rem;
            box-shadow: var(--shadow);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            color: var(--secondary-color);
        }
        .form-input, .form-textarea {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: var(--accent-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
        }
        .site-footer {
            background-color: var(--secondary-color);
            color: var(--light-text);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-widget h3 {
            color: var(--light-text);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            list-style: none;
        }
        .friend-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .friend-links a:hover {
            color: var(--accent-color);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--secondary-color);
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-list {
                flex-direction: column;
                width: 100%;
                align-items: center;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            .search-form {
                margin-left: 0;
                width: 100%;
            }
            .search-input {
                width: 100%;
            }
            .article-content {
                padding: 2rem;
            }
            .article-title {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .header-container, .main-container, .footer-container {
                padding: 0 1rem;
            }
            .article-content, .comments-section {
                padding: 1.5rem;
            }
            .article-title {
                font-size: 1.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .text-center {
            text-align: center;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 3px;
        }