:root {
            --primary: #2a2d7a;
            --secondary: #f9c73d;
            --accent: #e63946;
            --dark: #1a1c3d;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1.2rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-decoration: none;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo:hover {
            color: white;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            background-color: rgba(255,255,255,0.15);
            color: var(--secondary);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: block;
            padding: 0.7rem;
            border-radius: 4px;
        }
        .mobile-nav a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #f1f3f5;
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 5px;
        }
        main {
            padding: 2.5rem 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background: white;
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .meta {
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .meta i {
            margin-right: 5px;
        }
        h2 {
            color: var(--dark);
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
        }
        h3 {
            color: var(--primary);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--secondary);
            padding: 1.5rem;
            margin: 1.8rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight strong {
            color: var(--primary);
        }
        .image-wrapper {
            margin: 2rem 0;
            text-align: center;
        }
        .feature-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        figcaption {
            margin-top: 0.8rem;
            font-style: italic;
            color: var(--gray);
            font-size: 0.9rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        strong {
            color: var(--primary);
        }
        .tip-box {
            background: #eef7ff;
            border: 2px dashed #2a7dd1;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .tip-box h4 {
            color: #2a7dd1;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-links {
            margin: 3rem 0;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 10px;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            list-style: none;
            margin-left: 0;
        }
        .related-links a {
            color: var(--primary);
            text-decoration: none;
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 6px;
            transition: var(--transition);
            border-left: 4px solid var(--secondary);
        }
        .related-links a:hover {
            background: var(--secondary);
            transform: translateX(5px);
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .widget {
            background: white;
            border-radius: 10px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            margin-top: 0;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-box {
            display: flex;
            margin-top: 1rem;
        }
        .search-box input {
            flex: 1;
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--dark);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .active {
            color: var(--secondary);
        }
        .rating-widget input,
        .rating-widget textarea {
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        .rating-widget button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background: #c1121f;
        }
        .comment-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .comment-widget button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-widget button:hover {
            background: var(--dark);
        }
        .table-of-contents ul {
            list-style: none;
            margin-left: 0;
        }
        .table-of-contents li {
            margin-bottom: 0.8rem;
        }
        .table-of-contents a {
            color: var(--gray);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .table-of-contents a:hover {
            color: var(--primary);
            transform: translateX(5px);
        }
        .footer-links {
            background: #f8f9fa;
            padding: 3rem 0;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem 0.8rem 0;
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            padding: 0.6rem 1.2rem;
            background: white;
            border-radius: 30px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.08);
            transition: var(--transition);
            display: inline-block;
            font-weight: 500;
        }
        .web-link a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 2.5rem 0;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }
        .social-links {
            display: flex;
            gap: 1.5rem;
            font-size: 1.5rem;
        }
        .social-links a {
            color: white;
            transition: var(--transition);
        }
        .social-links a:hover {
            color: var(--secondary);
            transform: translateY(-5px);
        }
        .copyright {
            color: #aaa;
            font-size: 0.9rem;
            max-width: 800px;
            line-height: 1.6;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            article {
                padding: 1.8rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .header-container, .footer-container {
                padding: 0 15px;
            }
        }
        @media (max-width: 480px) {
            .meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .related-links ul {
                grid-template-columns: 1fr;
            }
        }