* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', Times, serif; color: #1a365d; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); text-align: center; margin-top: 1.5rem; border-bottom: 3px solid #2b6cb0; padding-bottom: 1rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #4299e1; }
        h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 2rem; color: #2d3748; }
        h4 { font-size: 1.3rem; margin-top: 1.5rem; color: #4a5568; }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; color: #2d3748; font-weight: 500; margin-bottom: 2rem; }
        em { color: #2b6cb0; font-style: italic; }
        strong { color: #2d3748; font-weight: 700; }
        a { color: #2b6cb0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #1a202c; text-decoration: underline; }
        .last-updated { font-style: italic; color: #718096; margin-bottom: 2rem; text-align: right; font-size: 0.95rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2b6cb0 100%);
            color: white;
            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;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            font-family: 'Trebuchet MS', sans-serif;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .my-logo a i { color: #63b3ed; margin-right: 10px; }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li { margin-left: 2rem; }
        .main-nav a {
            color: #e2e8f0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover { color: white; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #63b3ed;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            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: #a0aec0;
        }
        .breadcrumb a { color: #4a5568; }
        .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-content {
            background: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .featured-img {
            width: 100%;
            border-radius: 8px;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        .inset-box {
            background: #ebf8ff;
            border-left: 4px solid #4299e1;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .link-list h4 { margin-top: 0; }
        .link-list ul { list-style-position: inside; }
        .link-list li { margin-bottom: 0.5rem; }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        button, .btn {
            background: #2b6cb0;
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        button:hover, .btn:hover { background: #1a365d; }
        .stars { display: flex; gap: 5px; font-size: 1.5rem; color: #cbd5e0; cursor: pointer; }
        .stars .active { color: #f6ad55; }
        .site-footer {
            background: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h4 {
            color: #fff;
            border-bottom: 2px solid #2b6cb0;
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: #63b3ed;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 300px; margin-top: 1rem; }
            .main-nav ul { flex-direction: column; }
            .main-nav li { margin: 0.5rem 0; margin-left: 0; }
            .article-content { padding: 1.5rem; }
            h1 { font-size: 2.2rem; }
        }