* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #2c3e50;
        }
        h1 {
            font-size: 2.8rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #3498db;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #2980b9;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #16a085;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #e74c3c;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #3498db;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            background-color: #3498db;
            color: white;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            width: 100%;
            background-color: #34495e;
            padding: 1rem 0;
            margin-top: 1rem;
            border-radius: 8px;
        }
        .mobile-nav.active {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            font-size: 0.95rem;
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #7f8c8d;
        }
        .breadcrumb-link {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb-link:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
            color: #7f8c8d;
            font-size: 0.95rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .featured-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .highlight {
            background-color: #f8f9fa;
            border-left: 4px solid #3498db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box {
            background-color: #e8f4fc;
            border: 1px solid #3498db;
            border-radius: 8px;
            padding: 1.5rem;
            margin: 2rem 0;
            position: relative;
        }
        .tip-box::before {
            content: '💡';
            position: absolute;
            left: -15px;
            top: -15px;
            background: white;
            border-radius: 50%;
            padding: 8px;
            font-size: 1.2rem;
            box-shadow: 0 3px 6px rgba(0,0,0,0.1);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .data-table th, .data-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        .data-table th {
            background-color: #2c3e50;
            color: white;
            font-weight: 600;
        }
        .data-table tr:hover {
            background-color: #f5f5f5;
        }
        .internal-link {
            color: #e74c3c;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 2px dotted #e74c3c;
            transition: all 0.3s ease;
        }
        .internal-link:hover {
            color: #c0392b;
            border-bottom-style: solid;
            background-color: #fdf2f2;
        }
        aside {
            background-color: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: fit-content;
            position: sticky;
            top: 140px;
        }
        .sidebar-section {
            margin-bottom: 2.5rem;
        }
        .sidebar-section h3 {
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3498db;
        }
        .search-form {
            display: flex;
            margin-bottom: 1.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #3498db;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            border-color: #2980b9;
        }
        .search-button {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .search-button:hover {
            background-color: #2980b9;
        }
        .rating-section {
            text-align: center;
            padding: 1.5rem;
            background-color: #f8f9fa;
            border-radius: 8px;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            font-size: 2rem;
            color: #f39c12;
            margin-bottom: 1rem;
            cursor: pointer;
        }
        .rating-stars .star {
            transition: transform 0.2s, color 0.2s;
        }
        .rating-stars .star:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: none;
            margin-top: 1rem;
        }
        .rating-form.active {
            display: block;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 120px;
            transition: border-color 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #3498db;
            outline: none;
        }
        .comment-form button {
            background-color: #2ecc71;
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s;
            float: right;
        }
        .comment-form button:hover {
            background-color: #27ae60;
        }
        footer {
            background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            margin-bottom: 2.5rem;
        }
        @media (max-width: 768px) {
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            transition: background-color 0.3s;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .web-link a {
            color: #3498db;
            text-decoration: none;
            font-weight: 500;
            line-height: 1.5;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.95rem;
            color: #bdc3c7;
        }
        .bold {
            font-weight: 700;
            color: #2c3e50;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        .text-center {
            text-align: center;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, aside {
                padding: 1.5rem;
            }
            .featured-image {
                height: 250px;
            }
        }
        @media (max-width: 480px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
        }