:root {
            --primary: #5865F2;
            --primary-dark: #4752C4;
            --secondary: #57F287;
            --dark-bg: #36393F;
            --darker-bg: #202225;
            --light-text: #F6F6F6;
            --gray-text: #B9BBBE;
            --border-color: #4F545C;
            --card-bg: #2F3136;
            --accent: #ED4245;
            --shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        * {
            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: var(--light-text);
            background-color: var(--darker-bg);
            overflow-x: hidden;
        }
        .site-header {
            background-color: var(--dark-bg);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 2rem;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--secondary);
            transform: translateY(-2px);
        }
        .my-logo i {
            font-size: 2.5rem;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: var(--gray-text);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--light-text);
            background-color: var(--card-bg);
        }
        .nav-link:hover::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--light-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 992px) {
            .mobile-menu-toggle {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 80px;
            right: -100%;
            width: 280px;
            height: calc(100vh - 80px);
            background-color: var(--dark-bg);
            border-left: 1px solid var(--border-color);
            padding: 2rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            transition: right 0.4s ease-in-out;
            z-index: 999;
        }
        .mobile-nav.active {
            right: 0;
        }
        .breadcrumb {
            background-color: var(--card-bg);
            padding: 1rem 2rem;
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 10px;
            color: var(--gray-text);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: var(--gray-text);
        }
        .main-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--dark-bg);
            border-radius: 12px;
            padding: 3rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--primary);
        }
        .article-header h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            line-height: 1.2;
            color: var(--light-text);
        }
        .article-header .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--gray-text);
            font-size: 0.95rem;
        }
        .last-updated {
            background-color: var(--card-bg);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-body {
            font-size: 1.1rem;
        }
        .article-body h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .article-body h3 {
            font-size: 1.8rem;
            color: var(--primary);
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.4rem;
            color: var(--gray-text);
            margin: 1.5rem 0 1rem;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 1.8rem;
            text-align: justify;
            hyphens: auto;
        }
        .article-body p.lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--light-text);
            background: linear-gradient(90deg, var(--card-bg), transparent);
            padding: 1.5rem;
            border-left: 4px solid var(--primary);
            border-radius: 0 8px 8px 0;
            margin: 2.5rem 0;
        }
        .highlight {
            background-color: rgba(88, 101, 242, 0.15);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
            color: var(--primary);
        }
        .article-body strong {
            color: var(--secondary);
            font-weight: 700;
        }
        .article-body em {
            color: var(--gray-text);
            font-style: italic;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .content-img:hover {
            transform: scale(1.01);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
        }
        .figure-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-text);
            margin-top: 0.5rem;
            font-size: 0.95rem;
            padding: 0 1rem;
        }
        .info-box {
            background-color: var(--card-bg);
            border-left: 5px solid var(--secondary);
            padding: 1.5rem;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box h4 {
            color: var(--secondary);
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .warning-box {
            background-color: rgba(237, 66, 69, 0.1);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .warning-box h4 {
            color: var(--accent);
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list {
            list-style: none;
            background-color: var(--card-bg);
            border-radius: 10px;
            padding: 2rem;
            margin: 2rem 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .link-list li {
            padding: 0.5rem 0;
        }
        .link-list a {
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0.8rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .link-list a:hover {
            background-color: rgba(88, 101, 242, 0.2);
            color: var(--secondary);
            padding-left: 1.2rem;
        }
        .link-list a i {
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .link-list a:hover i {
            transform: translateX(5px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: var(--dark-bg);
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--border-color);
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
            margin-bottom: 1.5rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px 0 0 8px;
            color: var(--light-text);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary);
            background-color: var(--darker-bg);
        }
        .search-button {
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 0 8px 8px 0;
            padding: 0 1.5rem;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background-color: var(--primary-dark);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2rem;
            color: var(--gray-text);
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: gold;
            transform: scale(1.2);
        }
        .rating-submit {
            background-color: var(--secondary);
            color: var(--darker-bg);
            border: none;
            border-radius: 8px;
            padding: 0.8rem 2rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .rating-submit:hover {
            background-color: #45d87c;
            transform: translateY(-3px);
        }
        .comment-form textarea {
            width: 100%;
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1rem;
            color: var(--light-text);
            font-size: 1rem;
            resize: vertical;
            min-height: 150px;
            margin-bottom: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-submit {
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 8px;
            padding: 0.9rem 2rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .comment-submit:hover {
            background-color: var(--primary-dark);
        }
        .toc {
            position: sticky;
            top: 120px;
        }
        .toc ul {
            list-style: none;
            padding-left: 1rem;
        }
        .toc li {
            margin-bottom: 0.8rem;
        }
        .toc a {
            color: var(--gray-text);
            text-decoration: none;
            transition: var(--transition);
            display: block;
            padding: 0.3rem 0.5rem;
            border-radius: 4px;
        }
        .toc a:hover {
            color: var(--primary);
            background-color: rgba(88, 101, 242, 0.1);
            padding-left: 0.8rem;
        }
        .site-footer {
            background-color: var(--darker-bg);
            border-top: 1px solid var(--border-color);
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-widget h4 {
            color: var(--secondary);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-widget ul {
            list-style: none;
        }
        .footer-widget li {
            margin-bottom: 0.8rem;
        }
        .footer-widget a {
            color: var(--gray-text);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-widget a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: var(--card-bg);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        friend-link h4 {
            color: var(--primary);
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            display: inline-block;
            margin-right: 1.5rem;
            margin-bottom: 0.8rem;
        }
        friend-link a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid var(--border-color);
            color: var(--gray-text);
            font-size: 0.95rem;
        }
        .interactive-highlight {
            position: relative;
            display: inline-block;
        }
        .interactive-highlight::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary);
            transition: width 0.4s ease;
        }
        .interactive-highlight:hover::after {
            width: 100%;
        }
        .stat-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 25px rgba(88, 101, 242, 0.3);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 1rem;
            }
            .main-container, .article-content {
                padding: 1.5rem;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .article-body h2 {
                font-size: 1.8rem;
            }
            .article-body h3 {
                font-size: 1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }