* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #6a5acd; 
            --secondary: #ffb6c1; 
            --accent: #98fb98; 
            --dark: #333344;
            --light: #f9f9ff;
            --text: #222233;
            --text-light: #555566;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: var(--text);
            line-height: 1.7;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }
        .section-padding {
            padding: 60px 0;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 800; }
        .highlight {
            background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
            padding: 2px 8px;
            border-radius: 4px;
        }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo a {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            margin-right: 10px;
            color: var(--primary);
        }
        .breadcrumb {
            background: #f0f0ff;
            padding: 12px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-light);
            margin: 0 8px;
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 30px;
        }
        .nav-links a {
            font-weight: 600;
            color: var(--dark);
            position: relative;
        }
        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        .nav-links a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: white;
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 40px;
                transition: left 0.5s ease;
                box-shadow: inset 0 10px 10px -10px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                margin: 15px 0;
            }
        }
        .article-hero {
            background: linear-gradient(135deg, #e0e7ff 0%, #fce7f3 100%);
            padding: 50px 20px;
            border-bottom: 3px solid var(--accent);
        }
        .article-hero h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--dark);
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 30px;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .last-updated i {
            color: var(--primary);
            margin-right: 5px;
        }
        .search-box {
            margin: 40px auto;
            max-width: 600px;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-form input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .main-content h1, .main-content h2, .main-content h3, .main-content h4 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            color: var(--dark);
            line-height: 1.3;
        }
        .main-content h1 { font-size: 2.5rem; }
        .main-content h2 {
            font-size: 2rem;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 10px;
        }
        .main-content h3 { font-size: 1.6rem; color: var(--primary); }
        .main-content h4 { font-size: 1.3rem; }
        .main-content p {
            margin-bottom: 1.5em;
            text-align: justify;
            color: var(--text);
            font-size: 1.1rem;
        }
        .main-content ul, .main-content ol {
            margin-left: 2em;
            margin-bottom: 1.5em;
        }
        .main-content blockquote {
            border-left: 5px solid var(--secondary);
            padding-left: 25px;
            margin: 2em 0;
            font-style: italic;
            color: var(--text-light);
            background: #f9f9ff;
            padding: 20px;
            border-radius: 0 10px 10px 0;
        }
        .article-img {
            margin: 2.5em auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .img-caption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .content-link {
            color: var(--primary);
            border-bottom: 1px dashed;
            font-weight: 600;
        }
        .content-link:hover {
            border-bottom-style: solid;
        }
        .interactive-module {
            background: #f8f9ff;
            border-radius: 15px;
            padding: 30px;
            margin: 50px 0;
            border: 1px solid #e0e7ff;
        }
        .module-title {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: var(--dark);
            display: flex;
            align-items: center;
        }
        .module-title i {
            margin-right: 15px;
            color: var(--primary);
        }
        .rating-box {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
        }
        .stars {
            display: flex;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars span {
            margin-right: 5px;
            transition: var(--transition);
        }
        .stars span:hover,
        .stars span.active {
            color: #ffc107;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea {
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(106, 90, 205, 0.2);
        }
        .form-row {
            display: flex;
            gap: 20px;
        }
        @media (max-width: 576px) {
            .form-row {
                flex-direction: column;
                gap: 0;
            }
        }
        .sidebar h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dotted #eee;
        }
        .related-links a {
            display: flex;
            align-items: center;
            color: var(--text);
        }
        .related-links a:hover {
            color: var(--primary);
        }
        .related-links i {
            margin-right: 10px;
            color: var(--secondary);
        }
        .site-footer {
            background: var(--dark);
            color: #ccc;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }
        .footer-col {
            flex: 1;
            min-width: 250px;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 12px;
            color: var(--accent);
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 50px;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }