* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1f2e 0%, #0a0e15 100%);
            padding: 1rem 0;
            border-bottom: 2px solid #ff5500;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #ff5500;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: #00a8ff;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        nav a:hover {
            background-color: #ff5500;
            color: #fff;
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
            color: #ff5500;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #1a1f2e;
            border-bottom: 1px solid #2a3040;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: #00a8ff;
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #666;
        }
        .search-box {
            background: linear-gradient(to right, #1a1f2e, #2a3040);
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
            border: 1px solid #3a4050;
        }
        .search-box h2 {
            margin-bottom: 1rem;
            color: #ff5500;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: none;
            border-radius: 4px 0 0 4px;
            background-color: #0f1419;
            color: #fff;
            font-size: 1rem;
        }
        .search-form button {
            padding: 0.8rem 1.5rem;
            background-color: #ff5500;
            color: white;
            border: none;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        .search-form button:hover {
            background-color: #e64a00;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: #1a1f2e;
            border-radius: 8px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            border: 1px solid #2a3040;
        }
        h1 {
            font-size: 2.5rem;
            color: #ff5500;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #00a8ff;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3a4050;
        }
        h3 {
            font-size: 1.5rem;
            color: #ffaa00;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background-color: #2a3040;
            padding: 1.5rem;
            border-left: 4px solid #ff5500;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .tip {
            background-color: rgba(0, 168, 255, 0.1);
            padding: 1.5rem;
            border-left: 4px solid #00a8ff;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .warning {
            background-color: rgba(255, 85, 0, 0.1);
            padding: 1.5rem;
            border-left: 4px solid #ff5500;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            margin: 2rem auto;
            display: block;
            border: 2px solid #3a4050;
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background-color: #2a3040;
            border-radius: 8px;
            overflow: hidden;
        }
        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #3a4050;
        }
        th {
            background-color: #1a1f2e;
            color: #ffaa00;
            font-weight: 700;
        }
        tr:hover {
            background-color: #3a4050;
        }
        .download-btn {
            display: inline-block;
            background: linear-gradient(to right, #ff5500, #ff8800);
            color: white;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 4px;
            font-weight: 700;
            margin: 1rem 0;
            transition: all 0.3s ease;
            text-align: center;
        }
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(255, 85, 0, 0.4);
        }
        .rating-section, .comment-section {
            background-color: #2a3040;
            border-radius: 8px;
            padding: 2rem;
            margin: 2rem 0;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star.active, .star:hover, .star:hover ~ .star {
            color: #ffaa00;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            background-color: #0f1419;
            border: 1px solid #3a4050;
            border-radius: 4px;
            color: #fff;
            font-size: 1rem;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .form-group {
            flex: 1;
            min-width: 200px;
        }
        .submit-btn {
            background-color: #ff5500;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            transition: background-color 0.3s ease;
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: #e64a00;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .web-link {
            background-color: #2a3040;
            padding: 1rem;
            border-radius: 4px;
            border-left: 4px solid #00a8ff;
        }
        .web-link a {
            color: #00a8ff;
            text-decoration: none;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: #0a0e15;
            padding: 3rem 0 1.5rem;
            border-top: 2px solid #ff5500;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ff5500;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #e0e0e0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: #ff5500;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3040;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1a1f2e;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 1px solid #2a3040;
                z-index: 100;
            }
            nav ul.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            article {
                padding: 1.5rem;
            }
            .form-row {
                flex-direction: column;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article {
            animation: fadeIn 0.8s ease-out;
        }
        .text-center { text-align: center; }
        .text-orange { color: #ff5500; }
        .text-blue { color: #00a8ff; }
        .text-bold { font-weight: 700; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }