:root {
            --primary: #e67e22;
            --secondary: #2c3e50;
            --accent: #3498db;
            --light: #ecf0f1;
            --dark: #1a1a1a;
            --gray: #95a5a6;
            --success: #27ae60;
            --warning: #f39c12;
            --danger: #e74c3c;
            --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;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #1a1a1a 0%, #2c3e50 100%);
            background-attachment: fixed;
            color: var(--light);
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: rgba(26, 26, 26, 0.95);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            margin-right: 10px;
            color: var(--accent);
        }
        .my-logo:hover {
            color: var(--light);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: var(--light);
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--radius);
        }
        .main-nav a:hover {
            background-color: var(--primary);
            color: var(--dark);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--light);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: rgba(44, 62, 80, 0.7);
            margin-bottom: 30px;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .search-box {
            background: rgba(236, 240, 241, 0.1);
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
            text-align: center;
        }
        .search-box h2 {
            margin-bottom: 15px;
            color: var(--primary);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            background: var(--light);
            color: var(--dark);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--accent);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(26, 26, 26, 0.8);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--accent);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed var(--primary);
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: var(--light);
            margin: 30px 0 15px;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: 25px 0 10px;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary);
            font-weight: 700;
        }
        .article-content em {
            color: var(--accent);
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(to right, rgba(52, 152, 219, 0.1), rgba(231, 126, 34, 0.1));
            border-left: 5px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .inline-link {
            background: rgba(52, 152, 219, 0.2);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .inline-link:hover {
            background: rgba(52, 152, 219, 0.4);
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image figcaption {
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .update-time {
            display: inline-block;
            background: var(--secondary);
            color: var(--light);
            padding: 8px 15px;
            border-radius: var(--radius);
            margin: 20px 0;
            font-size: 0.9rem;
        }
        .update-time i {
            margin-right: 8px;
            color: var(--warning);
        }
        .sidebar {
            background: rgba(26, 26, 26, 0.8);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .link-list {
            list-style: none;
            margin-bottom: 30px;
        }
        .link-list li {
            margin-bottom: 12px;
        }
        .link-list a {
            display: block;
            padding: 12px 15px;
            background: rgba(52, 152, 219, 0.1);
            border-radius: var(--radius);
            color: var(--light);
        }
        .link-list a:hover {
            background: rgba(52, 152, 219, 0.3);
            transform: translateX(5px);
        }
        .link-list i {
            margin-right: 10px;
            color: var(--primary);
        }
        .rating-section, .comments-section {
            background: rgba(26, 26, 26, 0.8);
            padding: 30px;
            border-radius: var(--radius);
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .rating-section h2, .comments-section h2 {
            color: var(--primary);
            margin-bottom: 25px;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2.5rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning);
        }
        .star-rating input:checked ~ label {
            color: var(--warning);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--light);
        }
        .form-input, .form-textarea {
            padding: 15px;
            border-radius: var(--radius);
            border: 2px solid transparent;
            background: rgba(255, 255, 255, 0.1);
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.15);
        }
        .form-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: var(--radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .form-btn:hover {
            background: var(--accent);
            transform: translateY(-3px);
        }
        .comment {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: var(--radius);
            margin-bottom: 20px;
            border-left: 4px solid var(--accent);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary);
        }
        .site-footer {
            background-color: var(--dark);
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-section p, .footer-section a {
            color: var(--gray);
            margin-bottom: 10px;
            display: block;
        }
        .footer-section a:hover {
            color: var(--light);
        }
        friend-link {
            display: block;
            padding: 10px 15px;
            background: rgba(52, 152, 219, 0.1);
            margin-bottom: 10px;
            border-radius: var(--radius);
            color: var(--light);
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(52, 152, 219, 0.3);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark);
                padding: 20px;
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .main-nav.active ul {
                display: flex;
            }
            .article-content {
                padding: 25px;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-btn {
                border-radius: var(--radius);
                width: 100%;
            }
            .search-input {
                margin-bottom: 10px;
            }
        }