:root {
            --primary-color: #D35400;
            --secondary-color: #2C3E50;
            --accent-color: #E67E22;
            --light-color: #ECF0F1;
            --dark-color: #1A1A1A;
            --text-color: #333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-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: 1.7;
            color: var(--text-color);
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--secondary-color);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: white;
        }
        .my-logo i {
            font-size: 2.5rem;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent-color);
            bottom: 0;
            left: 0;
            transition: var(--transition);
        }
        .main-nav a:hover:after,
        .main-nav a.active:after {
            width: 100%;
        }
        .breadcrumb {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--light-color);
        }
        .breadcrumb a:hover {
            color: var(--accent-color);
        }
        .breadcrumb span {
            color: #ccc;
            margin: 0 8px;
        }
        .hero {
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.8)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 80px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        .main-content {
            background: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        h1, h2, h3, h4 {
            color: var(--secondary-color);
            margin-top: 1.8em;
            margin-bottom: 0.7em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid var(--accent-color);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--secondary-color);
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background-color: #FFF9E6;
            padding: 20px;
            border-radius: var(--border-radius);
            border: 1px solid #FFEAA7;
            margin: 25px 0;
        }
        .tip-box {
            background-color: #E8F6F3;
            border-left: 5px solid #1ABC9C;
            padding: 18px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip-box i {
            color: #1ABC9C;
            margin-right: 10px;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        em {
            background-color: #FFF9E6;
            font-style: italic;
            padding: 0 3px;
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
        }
        .inline-link:hover {
            border-bottom-style: solid;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5em;
        }
        li {
            margin-bottom: 0.7em;
        }
        .search-box {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid #ddd;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--accent-color);
        }
        .comment-section, .rating-section {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 40px 0;
        }
        .section-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 25px;
        }
        .section-title i {
            color: var(--primary-color);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--secondary-color);
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 14px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--accent-color);
            transform: translateY(-3px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            font-size: 2rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #FFC107;
        }
        .sidebar-widget {
            margin-bottom: 35px;
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--secondary-color);
            padding-bottom: 10px;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--light-color);
        }
        .link-list {
            list-style: none;
            margin-left: 0;
        }
        .link-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list i {
            color: var(--primary-color);
        }
        .update-info {
            background-color: #E8F6F3;
            padding: 20px;
            border-radius: var(--border-radius);
            font-size: 0.95rem;
        }
        .site-footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 20px;
        }
        .footer-links a {
            color: #ccc;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: var(--border-radius);
            margin: 20px 0;
        }
        friend-link h3 {
            color: var(--accent-color);
            margin-top: 0;
        }
        friend-link a {
            color: white;
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
            padding: 8px 15px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }
        friend-link a:hover {
            background: var(--primary-color);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 20px;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                margin-bottom: 15px;
            }
            .hero {
                padding: 60px 0;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .main-content {
                padding: 25px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--border-radius);
                border-right: 2px solid #ddd;
                margin-bottom: 10px;
            }
            .search-btn {
                border-radius: var(--border-radius);
                padding: 14px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }