:root {
            --primary: #e67e22;
            --primary-dark: #d35400;
            --secondary: #2c3e50;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --grey: #7f8c8d;
            --success: #27ae60;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--secondary);
            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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--primary);
        }
        .my-logo:hover {
            text-decoration: none;
            color: var(--light);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: var(--grey);
        }
        .main-content {
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-body h1 {
            color: var(--secondary);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 1rem;
        }
        .article-body h2 {
            color: var(--secondary);
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .article-body h3 {
            color: var(--primary-dark);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            color: var(--dark);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.8rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .article-body em {
            color: var(--grey);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--dark);
        }
        .article-body img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 2rem auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .info-box {
            background-color: #f8f9fa;
            border-left: 4px solid var(--success);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .link-list {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .link-list li {
            padding: 0.5rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary);
        }
        .search-form input,
        .comment-form input,
        .comment-form textarea,
        .rating-form select {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .search-form button,
        .comment-form button,
        .rating-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            width: 100%;
        }
        .search-form button:hover,
        .comment-form button:hover,
        .rating-form button:hover {
            background-color: var(--primary-dark);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
            justify-content: center;
        }
        .rating-stars i {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffc107;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--grey);
            text-align: center;
            margin-top: 1rem;
        }
        .site-footer {
            background-color: var(--secondary);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        friend-link {
            display: block;
            padding: 0.5rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 4px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        friend-link a {
            color: var(--light);
        }
        friend-link a:hover {
            color: var(--primary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #bbb;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--secondary);
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .article-body {
                padding: 1.5rem;
            }
            .article-body h1 {
                font-size: 2rem;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
        }