* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a5fb4;
            --secondary-color: #30d158;
            --accent-color: #ff9f0a;
            --dark-color: #1c1c1e;
            --light-color: #f5f5f7;
            --text-color: #333;
            --text-light: #666;
            --border-color: #e5e5e7;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
            --border-radius: 12px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--primary-color);
            transform: translateY(-2px);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-link {
            font-weight: 600;
            color: var(--dark-color);
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary-color);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 0.5rem;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--dark-color);
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: #f8f9fa;
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
        }
        .breadcrumb-item a:hover {
            color: var(--primary-color);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-color);
            color: var(--dark-color);
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid var(--border-color);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-color);
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: var(--accent-color);
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--dark-color);
        }
        h2 {
            font-size: 2.2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary-color);
            color: var(--dark-color);
        }
        h3 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            color: var(--primary-color);
        }
        h4 {
            font-size: 1.4rem;
            margin: 1.5rem 0 0.75rem;
            color: var(--text-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--text-light);
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background-color: rgba(255, 159, 10, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 4px solid var(--accent-color);
        }
        .note {
            background-color: rgba(48, 209, 88, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 4px solid var(--secondary-color);
        }
        .warning {
            background-color: rgba(255, 69, 58, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 4px solid #ff453a;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--text-light);
        }
        .content-link {
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
        }
        .content-link:hover {
            border-bottom-style: solid;
        }
        .article-image {
            margin: 2.5rem auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 800px;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            padding: 0.75rem;
            background-color: #f9f9f9;
            font-size: 0.9rem;
        }
        .interactive-section {
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            border: 2px solid var(--border-color);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: var(--accent-color);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        label {
            font-weight: 600;
            color: var(--dark-color);
        }
        input, textarea, select {
            padding: 0.75rem 1rem;
            border: 2px solid var(--border-color);
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.1);
        }
        .submit-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            background-color: var(--accent-color);
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--dark-color);
            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;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-heading {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--secondary-color);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 0.75rem;
            background-color: rgba(255,255,255,0.05);
            border-radius: 8px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .last-updated {
            background-color: rgba(48, 209, 88, 0.1);
            padding: 1rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .last-updated i {
            color: var(--secondary-color);
            font-size: 1.2rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                margin-top: 1rem;
                border-top: 1px solid var(--border-color);
                padding-top: 1rem;
            }
            .main-nav.active {
                display: flex;
            }
            .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);
            }
            .nav-link {
                padding: 0.75rem 0;
                border-bottom: 1px solid var(--border-color);
            }
            .nav-link:last-child {
                border-bottom: none;
            }
            article {
                padding: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }