* {
            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: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        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, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 1rem 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 {
            font-size: 1.8rem;
            font-weight: bold;
            color: #00ffcc;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .logo:hover {
            transform: scale(1.05);
        }
        .nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            gap: 1.5rem;
        }
        .nav-item a {
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s, color 0.3s;
            font-weight: 500;
        }
        .nav-item a:hover {
            background: #00ffcc;
            color: #16213e;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #00ffcc;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-list {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-item:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .main {
            padding: 2rem 0;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .article-header {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #00ffcc;
        }
        .article-title {
            font-size: 2.5rem;
            color: #16213e;
            margin-bottom: 1rem;
        }
        .article-meta {
            color: #6c757d;
            font-size: 0.9rem;
        }
        .content-section {
            margin-bottom: 2rem;
        }
        .content-section h2 {
            font-size: 2rem;
            color: #1a1a2e;
            margin-bottom: 1rem;
            padding-left: 0.5rem;
            border-left: 4px solid #00ffcc;
        }
        .content-section h3 {
            font-size: 1.5rem;
            color: #16213e;
            margin-bottom: 0.8rem;
        }
        .content-section p {
            margin-bottom: 1rem;
            text-align: justify;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: #e3f2fd;
            padding: 1rem;
            border-radius: 6px;
            border-left: 4px solid #2196f3;
            margin: 1rem 0;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
        }
        .image-container img {
            border-radius: 8px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: #6c757d;
        }
        .form-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .form-title {
            font-size: 1.8rem;
            color: #1a1a2e;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
            color: #495057;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ced4da;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            border-color: #00ffcc;
            outline: none;
            box-shadow: 0 0 0 0.2rem rgba(0,255,204,0.25);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-button {
            background: #00ffcc;
            color: #16213e;
            border: none;
            padding: 0.75rem 2rem;
            font-size: 1rem;
            border-radius: 4px;
            cursor: pointer;
            transition: background 0.3s, transform 0.3s;
            font-weight: bold;
        }
        .form-button:hover {
            background: #00e6b8;
            transform: translateY(-2px);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            margin-bottom: 1rem;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating input:checked ~ label {
            color: #ffc107;
        }
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffc107;
        }
        .footer-links {
            background: #16213e;
            color: #fff;
            padding: 2rem 0;
            margin-bottom: 2rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: 4px;
            transition: background 0.3s, transform 0.3s;
        }
        .web-link:hover {
            background: rgba(0,255,204,0.2);
            transform: translateX(5px);
        }
        .web-link a {
            color: #00ffcc;
            font-weight: 500;
        }
        .footer {
            background: #1a1a2e;
            color: #adb5bd;
            text-align: center;
            padding: 1.5rem 0;
        }
        .copyright {
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background: #16213e;
                width: 100%;
                padding: 1rem;
                transition: left 0.3s ease;
                box-shadow: 0 4px 12px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .nav-list.active {
                left: 0;
            }
            .article-title {
                font-size: 2rem;
            }
            .content-section h2 {
                font-size: 1.8rem;
            }
            .content-section h3 {
                font-size: 1.3rem;
            }
            .form-section {
                padding: 1.5rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }