* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff5722;
            --accent: #4caf50;
            --light: #f5f7fa;
            --dark: #212121;
            --gray: #757575;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), #0d1440);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .search-box {
            flex-grow: 1;
            max-width: 500px;
            margin: 0 30px;
            position: relative;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            width: 100%;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background-color: var(--secondary);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 12px 25px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background-color: #e64a19;
        }
        .desktop-nav {
            display: flex;
            gap: 25px;
            list-style: none;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            position: relative;
            transition: color 0.3s;
        }
        .desktop-nav a:hover {
            color: var(--secondary);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary);
            padding: 20px;
            margin-top: 15px;
            border-radius: 10px;
            list-style: none;
            animation: slideDown 0.4s ease;
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav li {
            margin: 10px 0;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: block;
            padding: 12px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e8eaf6;
            margin-bottom: 30px;
            border-radius: 0 0 10px 10px;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--gray);
            font-size: 0.8rem;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 2px solid #eee;
            flex-wrap: wrap;
        }
        .meta span {
            display: flex;
            align-items: center;
            gap: 7px;
        }
        .intro {
            font-size: 1.3rem;
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            padding: 25px;
            border-left: 6px solid var(--secondary);
            border-radius: 10px;
            margin-bottom: 40px;
            font-weight: 600;
        }
        h2 {
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
            font-size: 2rem;
        }
        h3 {
            color: #333;
            margin: 30px 0 15px;
            font-size: 1.6rem;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fffde7;
            padding: 20px;
            border-radius: 10px;
            border-left: 5px solid #ffc107;
            margin: 25px 0;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .tip-card {
            background: #f9f9f9;
            padding: 25px;
            border-radius: 10px;
            border-top: 5px solid var(--accent);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .tip-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .tip-card h4 {
            color: var(--primary);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .image-container {
            margin: 35px 0;
            text-align: center;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 15px;
            box-shadow: var(--shadow);
            transition: transform 0.5s;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            margin-top: 10px;
            color: var(--gray);
            font-style: italic;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .download-box {
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            margin: 40px 0;
        }
        .download-box h3 {
            color: white;
            margin-bottom: 20px;
        }
        .btn {
            display: inline-block;
            background-color: var(--secondary);
            color: white;
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.2rem;
            margin-top: 20px;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background-color: #e64a19;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
        }
        .btn i {
            margin-right: 10px;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
            font-size: 1.5rem;
        }
        .related-links a {
            display: block;
            padding: 12px 15px;
            margin-bottom: 10px;
            background-color: #f5f5f5;
            border-radius: 8px;
            color: var(--dark);
            text-decoration: none;
            transition: all 0.3s;
        }
        .related-links a:hover {
            background-color: var(--primary);
            color: white;
            padding-left: 25px;
        }
        .interaction {
            margin-top: 50px;
        }
        .rating-box, .comment-box {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: var(--shadow);
            margin-bottom: 30px;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 20px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        form label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
        }
        form input, form textarea, form select {
            width: 100%;
            padding: 15px;
            margin-bottom: 25px;
            border: 1px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        form input:focus, form textarea:focus {
            border-color: var(--primary);
            outline: none;
        }
        .footer-links {
            background-color: #f1f8e9;
            padding: 40px 0;
            margin-top: 60px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: white;
            padding: 20px;
            border-radius: 10px;
            border-left: 5px solid var(--accent);
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            color: var(--secondary);
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .search-box {
                margin: 15px 0;
                max-width: 100%;
                order: 3;
                width: 100%;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            .article-content {
                padding: 25px;
            }
            .intro {
                font-size: 1.1rem;
                padding: 20px;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }
        [itemscope] {
            display: block;
        }