* {
            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 {
            color: #2a5aa7;
            text-decoration: none;
            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;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight {
            background-color: #fffacd;
            padding: 2px 5px;
            border-radius: 3px;
        }
        .section-spacing {
            padding: 40px 0;
        }
        .site-header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 15px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            margin-right: 10px;
            color: #ffd700;
        }
        .my-logo:hover {
            color: #ffd700;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 25px;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #ffd700;
            border-bottom-color: #ffd700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #1e3c72;
        }
        .search-section {
            background-color: #fff;
            padding: 25px 0;
            border-bottom: 1px solid #dee2e6;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 25px;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background: linear-gradient(to right, #2a5aa7, #1e3c72);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: linear-gradient(to right, #e63946, #c1121f);
        }
        main {
            flex: 1;
        }
        .article-header {
            padding: 40px 0 20px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            color: #6c757d;
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 20px;
        }
        .article-content {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.05);
            padding: 40px;
            margin-bottom: 40px;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e9ecef;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: #495057;
            margin: 25px 0 12px;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: #6c757d;
            margin: 20px 0 10px;
        }
        .article-content p {
            margin-bottom: 1.2em;
            font-size: 1.1rem;
        }
        .article-content ul, .article-content ol {
            margin-left: 30px;
            margin-bottom: 1.2em;
        }
        .article-content li {
            margin-bottom: 0.5em;
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            max-height: 500px;
            object-fit: cover;
            width: 100%;
        }
        .image-caption {
            font-style: italic;
            color: #6c757d;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .info-box {
            background-color: #f1f8ff;
            border-left: 5px solid #2a5aa7;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid #ffd700;
            padding-left: 20px;
            margin: 25px 0;
            color: #555;
            font-size: 1.15rem;
        }
        .interactive-section {
            background-color: #f8f9fa;
            border-top: 1px solid #dee2e6;
            border-bottom: 1px solid #dee2e6;
            padding: 30px 0;
            margin: 40px 0;
        }
        .interactive-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .comment-box, .rating-box {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .interactive-section h3 {
            color: #1e3c72;
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        textarea, input, select {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 15px;
            border: 1px solid #ced4da;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        textarea:focus, input:focus, select:focus {
            border-color: #2a5aa7;
            outline: none;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background: linear-gradient(to right, #2a5aa7, #1e3c72);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .submit-button:hover {
            background: linear-gradient(to right, #e63946, #c1121f);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
            font-size: 2rem;
            color: #ffd700;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background-color: #212529;
            color: #adb5bd;
            padding: 50px 0 20px;
            margin-top: 40px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-column h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-column h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background-color: #ffd700;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #adb5bd;
        }
        .footer-links a:hover {
            color: #ffd700;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #343a40;
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 10px;
            transition: background-color 0.3s;
        }
        friend-link:hover {
            background-color: #495057;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #343a40;
            font-size: 0.9rem;
            color: #6c757d;
        }
        @media (max-width: 992px) {
            .article-header h1 { font-size: 2.4rem; }
            .article-content { padding: 30px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 70px);
                background-color: #1e3c72;
                flex-direction: column;
                padding: 30px;
                transition: left 0.4s ease;
                box-shadow: 5px 0 15px rgba(0,0,0,0.2);
            }
            .main-nav.active { left: 0; }
            .main-nav ul {
                flex-direction: column;
            }
            .main-nav li {
                margin: 0 0 20px 0;
            }
            .article-header h1 { font-size: 2rem; }
            .article-content { padding: 20px; }
            .article-content h2 { font-size: 1.7rem; }
            .interactive-container { grid-template-columns: 1fr; }
        }