* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #FF6B35;
            --secondary-color: #004E89;
            --accent-color: #FFD166;
            --dark-color: #1A1A2E;
            --light-color: #F8F9FA;
            --text-color: #333333;
            --gray-color: #6C757D;
            --success-color: #28A745;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-body: 'Arial', 'Helvetica', sans-serif;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-color);
            font-size: 18px;
            direction: ltr;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: var(--dark-color);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary-color);
            margin-top: 2.5rem;
            position: relative;
            padding-left: 1rem;
        }
        h2:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 5px;
            background-color: var(--primary-color);
            border-radius: 3px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--dark-color);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--dark-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        .logo-text {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
        }
        .logo-text:after {
            content: '△';
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-left: 5px;
            position: relative;
            top: -3px;
        }
        .nav-desktop {
            display: flex;
        }
        .nav-list {
            display: flex;
            list-style: none;
        }
        .nav-item {
            margin-left: 1.5rem;
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-link:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--dark-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            z-index: 999;
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile .nav-list {
            flex-direction: column;
            padding: 1rem;
        }
        .nav-mobile .nav-item {
            margin: 0;
            margin-bottom: 0.5rem;
        }
        .nav-mobile .nav-link {
            display: block;
            padding: 1rem;
            border-radius: var(--border-radius);
        }
        .breadcrumb {
            background-color: #f1f1f1;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            margin-right: 0.5rem;
            font-size: 0.95rem;
        }
        .breadcrumb-item:not(:last-child):after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--gray-color);
        }
        .breadcrumb-link {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb-link:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2.5rem 0;
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .sidebar {
            background-color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-title {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 1.5rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .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;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #e55a2b;
        }
        .rating-form {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
        }
        .rating-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        .stars {
            display: flex;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 0 0.2rem;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
        }
        .rating-submit {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            width: 100%;
            transition: var(--transition);
        }
        .rating-submit:hover {
            background-color: #003a6b;
        }
        .comment-form {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-top: 3rem;
        }
        .comment-title {
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            color: var(--secondary-color);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: var(--font-body);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-submit {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .form-submit:hover {
            background-color: #e55a2b;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--box-shadow);
            border: 5px solid white;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 0.5rem;
            margin-bottom: 2rem;
        }
        .highlight-box {
            background-color: #f0f7ff;
            border-left: 5px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-title {
            color: var(--secondary-color);
            margin-top: 0;
            font-size: 1.5rem;
        }
        .key-point {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0;
            border: 2px dashed var(--accent-color);
        }
        .key-point h3 {
            color: var(--primary-color);
            margin-top: 0;
        }
        .emoji {
            font-size: 1.5rem;
            margin-right: 0.5rem;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-item {
            background-color: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            text-align: center;
            box-shadow: var(--box-shadow);
            border-top: 5px solid var(--primary-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .stat-text {
            font-size: 1.1rem;
            font-weight: 600;
        }
        .footer-links {
            background-color: var(--dark-color);
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1.2rem;
            margin-bottom: 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: block;
        }
        .web-link a:hover {
            color: var(--accent-color);
        }
        .site-footer {
            background-color: #0d0d1a;
            color: white;
            padding: 2.5rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .copyright {
            margin-top: 1.5rem;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 0 15px;
            }
            .article-content {
                padding: 1.5rem;
            }
            .sidebar {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            body {
                font-size: 16px;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .logo-text {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--border-radius);
                margin-bottom: 0.5rem;
            }
            .search-button {
                border-radius: var(--border-radius);
                padding: 0.8rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .text-bold {
            font-weight: 800;
        }
        .text-primary {
            color: var(--primary-color);
        }
        .text-secondary {
            color: var(--secondary-color);
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .py-2 {
            padding-top: 2rem;
            padding-bottom: 2rem;
        }
        @media print {
            .site-header,
            .sidebar,
            .comment-form,
            .footer-links,
            .site-footer,
            .breadcrumb,
            .rating-form,
            .search-form {
                display: none;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            body {
                font-size: 12pt;
                line-height: 1.5;
                color: black;
                background: white;
            }
            h1, h2, h3 {
                color: black;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }