:root {
            --primary-color: #1a365d; 
            --secondary-color: #c53030; 
            --accent-color: #f6ad55; 
            --light-bg: #f7fafc;
            --dark-text: #2d3748;
            --light-text: #e2e8f0;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--dark-text);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2d3748 100%);
            color: white;
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a {
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: var(--accent-color);
            font-size: 2.5rem;
        }
        .logo-text {
            background: linear-gradient(to right, #f6ad55, #fc8181);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-style: italic;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            align-items: center;
        }
        .nav-list a {
            color: var(--light-text);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-list a:hover {
            color: var(--accent-color);
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: width 0.3s;
        }
        .nav-list a:hover::after {
            width: 100%;
        }
        .nav-search {
            display: flex;
            align-items: center;
        }
        .search-form {
            display: flex;
            border-radius: 30px;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.15);
        }
        .search-input {
            padding: 0.6rem 1rem;
            border: none;
            background: transparent;
            color: white;
            width: 200px;
            outline: none;
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .search-btn {
            background: var(--accent-color);
            border: none;
            color: var(--primary-color);
            padding: 0.6rem 1.2rem;
            cursor: pointer;
            font-weight: bold;
        }
        .search-btn:hover {
            background: #fbd38d;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 1rem 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.7rem;
        }
        .breadcrumb-item {
            color: #4a5568;
            font-size: 0.9rem;
        }
        .breadcrumb-item a {
            color: var(--primary-color);
        }
        .breadcrumb-item i {
            margin: 0 5px;
            font-size: 0.8rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-container {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-header {
            padding: 2.5rem 2.5rem 1.5rem;
            border-bottom: 3px solid var(--accent-color);
        }
        .article-title {
            font-size: 2.8rem;
            color: var(--primary-color);
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: #718096;
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .article-body {
            padding: 2.5rem;
        }
        .article-section {
            margin-bottom: 3.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px dashed #e2e8f0;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--secondary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #4a5568;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary-color);
            background-color: #f0fff4;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid var(--secondary-color);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fffaf0;
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-box {
            background: linear-gradient(145deg, #f7fafc, #edf2f7);
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            border: 1px solid #cbd5e0;
            box-shadow: var(--shadow);
        }
        .feature-title {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
        }
        .feature-title i {
            color: var(--secondary-color);
            font-size: 1.8rem;
        }
        .image-container {
            margin: 3rem 0;
            text-align: center;
        }
        .article-img {
            border-radius: 10px;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
            margin: 0 auto 1rem;
            border: 5px solid white;
        }
        .img-caption {
            font-style: italic;
            color: #718096;
            font-size: 0.95rem;
            margin-top: 1rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.8rem;
        }
        li {
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        em {
            color: var(--secondary-color);
            font-style: italic;
        }
        .interactive-box {
            background: linear-gradient(135deg, #1a365d, #2d3748);
            color: white;
            padding: 2.5rem;
            border-radius: 10px;
            margin: 3rem 0;
            text-align: center;
        }
        .interactive-box h3 {
            color: var(--accent-color);
            margin-top: 0;
        }
        .btn {
            display: inline-block;
            background: var(--accent-color);
            color: var(--primary-color);
            padding: 0.9rem 2.2rem;
            border-radius: 50px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 1rem;
            font-size: 1.1rem;
        }
        .btn:hover {
            background: #fbd38d;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.2);
        }
        .user-feedback {
            background-color: var(--light-bg);
            padding: 2.5rem;
            border-radius: 10px;
            margin-top: 3rem;
        }
        .feedback-title {
            color: var(--primary-color);
            margin-bottom: 2rem;
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 1.8rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-text);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(246, 173, 85, 0.2);
        }
        .rating-widget {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #e2e8f0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f6ad55;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2.5rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 10px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1.2rem;
            padding-bottom: 1.2rem;
            border-bottom: 1px dashed #e2e8f0;
        }
        .related-links a {
            color: var(--dark-text);
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-weight: 500;
        }
        .related-links a:hover {
            color: var(--secondary-color);
        }
        .related-links i {
            color: var(--accent-color);
        }
        .popular-posts .post {
            display: flex;
            gap: 1rem;
            margin-bottom: 1.5rem;
            align-items: center;
        }
        .post-img {
            width: 80px;
            height: 80px;
            object-fit: cover;
            border-radius: 8px;
        }
        .post-title {
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.4;
        }
        .site-footer {
            background: linear-gradient(135deg, #1a202c, #2d3748);
            color: white;
            padding-top: 3rem;
            margin-top: 4rem;
        }
        .footer-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid #4a5568;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            color: var(--accent-color);
            font-weight: 600;
            font-size: 1.1rem;
            display: block;
        }
        .web-link a:hover {
            color: #fbd38d;
        }
        .footer-copyright {
            text-align: center;
            padding: 2rem 0;
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 90px;
                left: -100%;
                width: 100%;
                background: var(--primary-color);
                flex-direction: column;
                padding: 2rem;
                transition: left 0.5s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .nav-list {
                flex-direction: column;
                gap: 1.5rem;
                width: 100%;
            }
            .nav-search {
                width: 100%;
                justify-content: center;
            }
            .search-form {
                width: 100%;
                max-width: 400px;
            }
            .search-input {
                width: 100%;
            }
            .article-title {
                font-size: 2.2rem;
            }
            .article-header,
            .article-body {
                padding: 1.8rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .lead {
                font-size: 1.2rem;
            }
            .btn {
                padding: 0.8rem 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .article-title {
                font-size: 1.9rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.8rem;
            }
            .logo {
                font-size: 1.8rem;
            }
            .logo-icon {
                font-size: 2rem;
            }
        }