:root {
            --primary: #E67E22;
            --primary-dark: #D35400;
            --secondary: #2C3E50;
            --accent: #F1C40F;
            --light: #ECF0F1;
            --dark: #2C3E50;
            --text: #34495E;
            --border: #BDC3C7;
            --success: #27AE60;
            --shadow: rgba(0, 0, 0, 0.1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text);
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: 0 4px 12px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid var(--border);
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent);
        }
        .my-logo:hover {
            color: var(--primary-dark);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid var(--border);
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
        }
        .main-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--primary);
            font-weight: 600;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background-color: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 6px 15px var(--shadow);
        }
        h1 {
            color: var(--dark);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 6px solid var(--accent);
            padding-left: 20px;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        h3 {
            color: var(--primary-dark);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--text);
            font-size: 1.3rem;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            background-color: #FFF9E6;
            padding: 25px;
            border-radius: 8px;
            border-left: 5px solid var(--accent);
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #EBF5FB;
            padding: 25px;
            border-radius: 8px;
            margin: 25px 0;
            border: 1px solid #AED6F1;
        }
        .highlight strong {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 25px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            display: block;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #7F8C8D;
            margin-top: -15px;
            margin-bottom: 25px;
        }
        ul, ol {
            margin-left: 30px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid var(--primary);
            padding-left: 25px;
            margin: 30px 0;
            color: #555;
            font-size: 1.1rem;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: var(--dark);
        }
        .content-link {
            background-color: #FEF9E7;
            padding: 3px 8px;
            border-radius: 4px;
            border-bottom: 2px solid var(--accent);
            font-weight: 600;
        }
        .content-link:hover {
            background-color: #FCF3CF;
        }
        aside {
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 12px var(--shadow);
            margin-bottom: 25px;
        }
        .widget-title {
            color: var(--dark);
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            font-size: 1.8rem;
            color: var(--border);
            cursor: pointer;
            margin-bottom: 10px;
        }
        .stars i:hover,
        .stars i.active {
            color: var(--accent);
        }
        .rating-form input,
        .rating-form textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-form button,
        .comment-form button {
            background-color: var(--success);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background-color: #219653;
        }
        .related-links {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border);
        }
        .related-links a {
            display: block;
            padding: 8px;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .related-links a:hover {
            background-color: #F8F9F9;
            padding-left: 15px;
        }
        .update-time {
            background-color: #E8F6F3;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            font-size: 0.95rem;
            color: var(--dark);
        }
        footer {
            background-color: var(--secondary);
            color: white;
            padding: 50px 0 30px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            margin-bottom: 10px;
            border-radius: 6px;
            transition: background-color 0.3s ease;
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #BDC3C7;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 100px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 100px);
                background-color: white;
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                gap: 25px;
                transition: left 0.5s ease;
                box-shadow: 5px 0 15px var(--shadow);
            }
            .nav-links.active {
                left: 0;
            }
            .hamburger {
                display: block;
            }
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                width: 100%;
            }
            article {
                padding: 25px;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.8rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .intro {
                padding: 20px;
                font-size: 1.1rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            header, aside, footer, .breadcrumb, .hamburger, .search-form {
                display: none;
            }
            main {
                grid-template-columns: 1fr;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }