* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #2c5aa0;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        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, #1e3c72, #2a5298);
            color: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: #ffd166;
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: #ffd166;
            color: #1e3c72;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #fdc500;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        nav {
            background-color: #142850;
            padding: 0;
        }
        .nav-list {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            color: white;
            padding: 18px 24px;
            display: inline-block;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-size: 0.95rem;
        }
        .nav-list a:hover,
        .nav-list a.active {
            background-color: #2c5aa0;
            color: #ffd166;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #1e3c72;
        }
        .breadcrumb span {
            color: #777;
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 2px solid #eee;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-style: italic;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h2 {
            color: #2a5298;
            margin: 30px 0 15px;
            padding-bottom: 8px;
            border-bottom: 1px dashed #ccc;
            font-size: 1.8rem;
        }
        .article-content h3 {
            color: #e63946;
            margin: 25px 0 12px;
            font-size: 1.4rem;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content strong {
            color: #1e3c72;
            font-weight: 700;
        }
        .article-content em {
            background-color: #fffacd;
            font-style: italic;
            padding: 2px 4px;
        }
        .highlight-box {
            background: #f1f8ff;
            border-left: 5px solid #2c5aa0;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .image-wrapper {
            margin: 30px 0;
            text-align: center;
        }
        .image-wrapper img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            max-width: 80%;
            margin: 0 auto;
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #1e3c72;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffd166;
            font-size: 1.3rem;
        }
        .rating-form label,
        .comment-form label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #444;
        }
        .rating-form input,
        .rating-form select,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 20px;
            font-size: 1.8rem;
            color: #ffd166;
            cursor: pointer;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .btn-submit {
            background: #2c5aa0;
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            width: 100%;
            transition: background 0.3s;
        }
        .btn-submit:hover {
            background: #1e3c72;
        }
        .long-tail-links {
            background: #e9ecef;
            padding: 40px 0;
            margin-top: 40px;
        }
        .web-link {
            display: inline-block;
            background: white;
            padding: 12px 25px;
            margin: 10px;
            border-radius: 30px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        }
        footer {
            background: #142850;
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffd166;
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #aaa;
        }
        .footer-links a:hover {
            color: #ffd166;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 1 1 100%;
                margin-top: 15px;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                display: none;
                width: 100%;
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list li {
                width: 100%;
                text-align: center;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 25px;
            }
        }