* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #4da6ff;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #80c1ff;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1f2e 0%, #0d1117 100%);
            padding: 20px 0;
            border-bottom: 3px solid #ff5722;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff5722, #ff9800);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .logo a {
            color: inherit;
        }
        .breadcrumb {
            margin-top: 10px;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .nav-menu {
            display: flex;
            list-style: none;
        }
        .nav-menu li {
            margin-left: 30px;
        }
        .nav-menu a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
            display: flex;
            align-items: center;
        }
        .nav-menu a i {
            margin-right: 8px;
        }
        .nav-menu a:hover {
            background-color: rgba(255, 87, 34, 0.2);
            color: #ff5722;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ff5722;
        }
        #nav-toggle {
            display: none;
        }
        main {
            padding: 40px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding: 30px;
            background: rgba(30, 35, 45, 0.8);
            border-radius: 15px;
            border-left: 6px solid #ff5722;
        }
        .article-header h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            color: #fff;
            text-shadow: 0 0 10px rgba(255, 87, 34, 0.5);
        }
        .article-header p {
            font-size: 1.2rem;
            color: #ccc;
            max-width: 800px;
            margin: 0 auto;
        }
        .content-section {
            margin-bottom: 60px;
            padding: 30px;
            background: rgba(25, 30, 40, 0.8);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        h2 {
            font-size: 2.5rem;
            color: #ff9800;
            margin-bottom: 25px;
            border-bottom: 3px solid #ff5722;
            padding-bottom: 10px;
            display: flex;
            align-items: center;
        }
        h2 i {
            margin-right: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: #4da6ff;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 152, 0, 0.1);
            padding: 20px;
            border-left: 5px solid #ff9800;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .highlight strong {
            color: #ffcc80;
            font-size: 1.2rem;
        }
        .img-container {
            text-align: center;
            margin: 30px 0;
        }
        .img-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.7);
            border: 3px solid #333;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .feature-card {
            background: rgba(40, 45, 55, 0.9);
            padding: 25px;
            border-radius: 10px;
            border-top: 4px solid #4da6ff;
            transition: all 0.3s ease;
        }
        .feature-card:hover {
            background: rgba(50, 55, 65, 0.9);
            transform: scale(1.03);
        }
        .feature-card h4 {
            color: #80c1ff;
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        .form-section {
            background: rgba(30, 35, 45, 0.9);
            padding: 30px;
            border-radius: 15px;
            margin-top: 40px;
        }
        .form-title {
            color: #ff5722;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        label {
            display: block;
            margin-bottom: 10px;
            color: #ccc;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            background-color: #1a1f2e;
            border: 2px solid #333;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #ff5722;
            outline: none;
        }
        button {
            background: linear-gradient(90deg, #ff5722, #ff9800);
            color: white;
            border: none;
            padding: 15px 30px;
            font-size: 1.1rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        button i {
            margin-right: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, #ff9800, #ff5722);
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(255, 87, 34, 0.4);
        }
        .rating {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ff9800;
        }
        .footer-links {
            background: rgba(20, 25, 35, 0.95);
            padding: 40px 0;
            margin-top: 60px;
            border-top: 3px solid #ff5722;
        }
        .web-link {
            display: inline-block;
            margin: 15px;
            padding: 12px 25px;
            background: rgba(40, 45, 55, 0.8);
            border-radius: 30px;
            border: 2px solid #333;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255, 87, 34, 0.2);
            border-color: #ff5722;
            transform: translateY(-3px);
        }
        .web-link a {
            color: #ccc;
            font-weight: 600;
        }
        .web-link:hover a {
            color: #ff5722;
        }
        footer {
            text-align: center;
            padding: 30px;
            background-color: #0a0d12;
            color: #777;
            font-size: 0.9rem;
            border-top: 2px solid #222;
        }
        footer a {
            color: #aaa;
        }
        @media (max-width: 992px) {
            .nav-menu {
                position: fixed;
                top: 100px;
                left: -100%;
                flex-direction: column;
                background-color: #1a1f2e;
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 27px rgba(0, 0, 0, 0.5);
                z-index: 999;
                padding: 20px 0;
            }
            .nav-menu li {
                margin: 15px 0;
            }
            .hamburger {
                display: block;
            }
            #nav-toggle:checked ~ .nav-menu {
                left: 0;
            }
            .article-header h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-container {
                width: 100%;
                justify-content: space-between;
                margin-top: 20px;
            }
            .article-header {
                padding: 20px;
            }
            .content-section {
                padding: 20px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }