:root {
            --primary: #5a189a;
            --secondary: #9d4edd;
            --accent: #ff9e00;
            --dark: #10002b;
            --light: #f8f9fa;
            --gray: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }
        * {
            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: #f5f5f5;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        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(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #ff9e00, #ffd166);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
        }
        .logo a i {
            margin-right: 10px;
            color: #ff9e00;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--accent);
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: var(--gray);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #eee;
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .meta i {
            margin-right: 0.5rem;
        }
        .article-body h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #ddd;
        }
        .article-body h3 {
            color: var(--secondary);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--border-radius);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            margin: 0 auto 1rem;
            border: 3px solid #ddd;
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .tip {
            background-color: #e7f3ff;
            border: 1px solid #b6d4fe;
            padding: 1.2rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        .tip i {
            color: #0d6efd;
            font-size: 1.3rem;
            margin-top: 0.2rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #eee;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            margin: 0.5rem 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            color: #ffc107;
        }
        .rating-widget input, .rating-widget textarea {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .rating-widget button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background: #e68a00;
        }
        .comment {
            border-bottom: 1px solid #eee;
            padding: 1rem 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.3rem;
        }
        .comment-date {
            font-size: 0.85rem;
            color: var(--gray);
            margin-bottom: 0.7rem;
        }
        .interactive-section {
            background: linear-gradient(135deg, #fdfcfb 0%, #f5f7fa 100%);
            border: 1px solid #e0e0e0;
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            text-align: center;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 15px rgba(90, 24, 154, 0.3);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(90, 24, 154, 0.4);
        }
        .long-tail-links {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 3rem 0;
        }
        .long-tail-links h2 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.2rem;
        }
        .web-link {
            background: #f8f9fa;
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--secondary);
            transition: var(--transition);
        }
        .web-link:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 0;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--accent);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding: 1.5rem 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background: var(--dark);
                width: 100%;
                padding: 2rem;
                transition: 0.5s;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active ul {
                left: 0;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .article-body h2 {
                font-size: 1.8rem;
            }
            .article-body h3 {
                font-size: 1.4rem;
            }
            .meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
        }