* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
            padding-top: 80px; 
        }
        a {
            text-decoration: none;
            color: #0066cc;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff6600;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1a1a1a;
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 28px;
            font-weight: bold;
            color: #00cc66;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a:hover {
            color: #ff9900;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            color: #fff;
            font-weight: 500;
            padding: 5px 10px;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: #00cc66;
            color: #1a1a1a;
        }
        .hamburger {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #2a2a2a;
            padding: 20px;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 12px 0;
            border-bottom: 1px solid #444;
        }
        .nav-mobile a:hover {
            color: #00cc66;
        }
        .breadcrumb {
            background-color: #2a2a2a;
            padding: 10px 20px;
            font-size: 14px;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: #00cc66;
        }
        .breadcrumb span {
            color: #00cc66;
            margin: 0 5px;
        }
        main {
            background-color: white;
            padding: 30px 0;
            min-height: 100vh;
        }
        article {
            max-width: 900px;
            margin: 0 auto 40px;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.5rem;
            color: #1a1a1a;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #0066cc;
            margin: 30px 0 15px;
            border-left: 5px solid #00cc66;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.5rem;
            color: #333;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid #ffcc00;
            padding: 15px;
            margin: 20px 0;
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .image-wrapper {
            margin: 30px 0;
            text-align: center;
        }
        .image-wrapper img {
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .internal-link {
            color: #00cc66;
            font-weight: bold;
        }
        .internal-link:hover {
            text-decoration: underline;
        }
        .functional-section {
            background-color: #f0f8ff;
            border-radius: 10px;
            padding: 25px;
            margin: 40px 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .functional-section h3 {
            color: #0066cc;
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 500px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #00cc66;
            outline: none;
        }
        button {
            background-color: #0066cc;
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #0052a3;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin-bottom: 15px;
        }
        .rating-stars i {
            color: #ffcc00;
            cursor: pointer;
            font-size: 24px;
            transition: color 0.2s ease;
        }
        .rating-stars i:hover {
            color: #ff9900;
        }
        .longtail-links {
            background-color: #2a2a2a;
            padding: 30px 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }
        .web-link {
            background-color: #3a3a3a;
            padding: 12px;
            border-radius: 6px;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-3px);
            background-color: #00cc66;
        }
        .web-link a {
            color: white;
            font-weight: 500;
            display: block;
        }
        footer {
            background-color: #1a1a1a;
            color: #aaa;
            text-align: center;
            padding: 20px;
        }
        .copyright {
            font-size: 0.9rem;
            margin-top: 10px;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .header-top {
                padding: 10px 15px;
            }
            .logo a {
                font-size: 22px;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .longtail-links {
                grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            }
        }
        @media (max-width: 480px) {
            .functional-section {
                padding: 15px;
            }
            form {
                gap: 10px;
            }
            input, textarea, select {
                padding: 10px;
            }
        }