* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2c3e50;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            padding: 15px 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;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .logo span {
            color: #f1c40f;
        }
        nav.desktop-nav ul {
            display: flex;
            gap: 25px;
        }
        nav.desktop-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
        }
        nav.desktop-nav a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1a2980;
            padding: 15px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 10px 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb a:hover {
            color: #e74c3c;
        }
        main {
            padding: 30px 0;
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
        }
        article {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.2;
            text-align: center;
        }
        h2 {
            font-size: 2rem;
            color: #2980b9;
            margin: 25px 0 15px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f1c40f;
        }
        h3 {
            font-size: 1.5rem;
            color: #34495e;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.1rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 15px;
            border-left: 5px solid #f1c40f;
            margin: 20px 0;
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 8px;
        }
        .image-container {
            margin: 25px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            max-width: 80%;
            margin: 0 auto;
        }
        .caption {
            font-style: italic;
            color: #7f8c8d;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
        }
        .function-box {
            margin-bottom: 25px;
        }
        .function-box h3 {
            color: #2c3e50;
            margin-bottom: 15px;
            font-size: 1.4rem;
        }
        .search-box, .comment-box, .rating-box {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        input, textarea, select {
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3498db;
        }
        button {
            padding: 12px 20px;
            background: linear-gradient(to right, #3498db, #2c3e50);
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 10px rgba(52, 152, 219, 0.4);
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #f1c40f;
            cursor: pointer;
        }
        .long-tail-links {
            background: #2c3e50;
            color: white;
            padding: 30px 0;
            margin-top: 40px;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
        }
        .web-link {
            padding: 12px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            text-align: center;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .web-link a {
            color: #f1c40f;
            font-weight: 600;
        }
        footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 25px 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .copyright {
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            nav.desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            main {
                grid-template-columns: 1fr;
            }
            .web-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            article, .sidebar {
                padding: 20px;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
            .logo a {
                font-size: 1.8rem;
            }
        }