* {
            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;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            color: #1a5276;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid #76d7c4;
            padding-bottom: 0.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2.5rem;
            padding-left: 0.5rem;
            border-left: 5px solid #f39c12;
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2rem;
            color: #2e86c1;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #555;
            background-color: #e8f6f3;
            padding: 1.2rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        strong {
            color: #1a5276;
            font-weight: 700;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .site-header {
            background-color: #1a5276;
            color: white;
            padding: 1rem 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;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #76d7c4;
            letter-spacing: 1px;
        }
        .logo a:hover {
            color: white;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .desktop-nav a:hover {
            background-color: #76d7c4;
            color: #1a5276;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #154360;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
        }
        .mobile-nav a:hover {
            background-color: #76d7c4;
            color: #1a5276;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e8f6f3;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #1a5276;
        }
        .breadcrumb a:hover {
            color: #f39c12;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            margin-top: 0;
            color: #1a5276;
            font-size: 1.5rem;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
            margin-bottom: 1.5rem;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem;
            border: 2px solid #76d7c4;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #1a5276;
            color: white;
            border: none;
            padding: 0.8rem 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background-color: #154360;
        }
        .interactive-section {
            background-color: #f2f4f4;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border-left: 6px solid #f39c12;
        }
        .rating-form, .comment-form {
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #1a5276;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #76d7c4;
            outline: none;
            box-shadow: 0 0 0 2px rgba(118, 215, 196, 0.2);
        }
        .submit-btn {
            background-color: #1a5276;
            color: white;
            padding: 0.9rem 2rem;
            border: none;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            background-color: #154360;
            transform: translateY(-2px);
        }
        .article-img {
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 5px solid white;
            max-width: 800px;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            padding: 0 1rem;
        }
        .longtail-links {
            background-color: #2c3e50;
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem;
            padding: 0.6rem 1.2rem;
            background-color: #34495e;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background-color: #76d7c4;
            color: #2c3e50;
            transform: translateY(-3px);
        }
        .site-footer {
            background-color: #1a252f;
            color: #bdc3c7;
            text-align: center;
            padding: 2.5rem 0;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .copyright {
            margin-top: 1.5rem;
            font-size: 0.95rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            article, .sidebar { padding: 1.5rem; }
            .main-content { gap: 2rem; }
            .web-link {
                display: block;
                margin: 0.8rem 0;
                text-align: center;
            }
        }
        @media print {
            .site-header, .sidebar, .interactive-section, .longtail-links, .site-footer {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }